A spiral modular atmosphere dynamic calcining furnace

Abstract

The present invention relates to the technical field of calcining furnaces, specifically a spiral modular atmosphere dynamic calcining furnace, comprising a furnace body and a motor, the furnace body comprising a furnace shell, the inner wall of the furnace shell is connected with a material support groove, the inner wall of the material support groove is connected with a spiral shaft, the inner wall of the furnace shell is connected with a partition, the surface of the furnace shell is connected with a feed port, the surface of the furnace shell is connected with an air inlet, the surface of the material support groove is connected with a support groove discharge port, and the inner wall of the furnace shell is connected with a heating groove. The present invention can very conveniently adjust the rotation speed, so as to achieve the effect of accurately controlling the pushing speed, does not require multiple motors and control terminals to work together, saves resources, can stir the powder material entering the support groove discharge port again, prevents the powder material from sticking when entering the next layer, is conducive to the next layer of calcination program, and improves the calcination effect.

Description

Technical Field

[0001] The invention relates to the technical field of calcining furnaces, in particular to a spiral modular atmosphere dynamic calcining furnace. Background Art

[0002] With the development of economy, powder materials are more widely used. Ensuring the morphology, particle size and uniformity, energy consumption, temperature control accuracy, etc. of powder materials are key factors in the production process of powder materials. The calcination process determines the quality of powder materials. Common dynamic calcination equipment and methods mainly include rotary kiln, cyclone dynamic calcination furnace, push plate furnace. These furnace types generally have certain problems and cannot achieve the best calcination effect.

[0003] The existing calcining furnace needs to be equipped with multiple motors, and each motor must be controlled separately through the control terminal. In addition, the motor must be adjustable to change the speed, so as to accurately control the pushing speed. It is difficult to adjust the speed. Equipping multiple motors and control terminals causes waste of resources. In addition, the existing calcining furnace directly enters the next layer of calcination after one layer of calcination is completed. At this time, the powder material is easy to stick together, which is not conducive to the development of the next layer of calcination process. The gas-solid reaction is insufficient, the product quality is poor, and the calcination effect is low. Therefore, it is urgent to design a spiral modular atmosphere dynamic calcining furnace to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a spiral modular atmosphere dynamic calcining furnace to solve the problems in the above background technology that the speed adjustment is difficult, resources are wasted, and powder materials are easily adhered when entering the next layer.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a spiral modular atmosphere dynamic calcining furnace, comprising a furnace body and a motor, the furnace body comprising a furnace shell, the inner wall of the furnace shell is connected with a material support groove, the inner wall of the material support groove is connected with a spiral shaft, the inner wall of the furnace shell is connected with a partition, the surface of the furnace shell is connected with a feed port, the surface of the furnace shell is connected with an air inlet, the surface of the material support groove is connected with a support groove discharge port, the inner wall of the furnace shell is connected with a heating groove, the surface of the furnace shell is connected with a motor, a speed regulating mechanism is arranged at one end of the spiral shaft, the speed regulating mechanism comprises a connecting shaft, one end of the spiral shaft is connected with a connecting shaft, the surface of the connecting shaft is connected with a push ring, the surface of the push ring is connected with a push rod, and one end of the push rod is connected with a connecting block.

[0006] Preferably, the material support grooves are connected to the inner wall of the furnace shell in three groups, the push rings are slidably connected to the surface of the connecting shaft in two groups, and the push rods are movably connected to the push rings via a knob.

[0007] Preferably, the surface of the connecting block is connected to a rotating ring, the surface of the connecting shaft is connected to a support column, the surface of the rotating ring is connected to a connecting rod, the surface of the furnace shell is connected to a spring rod, the surface of the spring rod is connected to a pulley, and one end of the connecting shaft is connected to a nut.

[0008] Preferably, the connection blocks are in six groups connected to the rotating rings accordingly, the support columns are in sliding connection with the connection rods, and the pulleys are in two groups connected to both ends of the spring rods.

[0009] Preferably, a stirring mechanism is provided at one end of the spiral shaft, and the stirring mechanism includes a first conical tooth, one end of the spiral shaft is connected to the first conical tooth, the surface of the first conical tooth is connected to the second conical tooth, the surface of the second conical tooth is connected to a rotating column, the surface of the rotating column is connected to a bearing, the surface of the rotating column is connected to a stirring rod, and one end of the stirring rod is connected to a stirring blade.

[0010] Preferably, the first conical teeth and the second conical teeth have the same shape, the bearing is fixedly connected to the surface of the feed port of the support groove, and the stirring rods are in six groups and are connected to the stirring blades accordingly.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The spiral modular atmosphere dynamic calcining furnace changes the position of the push ring by rotating the nut. The movement of the push ring will change the position of the push rod, and the push rod will push the rotating ring to expand outward. At this time, the connecting rod slides and extends in the support column, and the contact area between the rotating ring and the belt becomes larger. At this time, the spring rod expands outward, so that the belt is still in a taut state. At this time, the rotation speed of the connecting shaft will slow down, and the rotation speed of the push rod will slow down. When the nut is moved outward, under the action of the push spring, the nut moves outward, the rotating ring contracts inward, and the rotation speed becomes faster. The rotation speed can be adjusted very conveniently, thereby achieving the effect of accurately controlling the pushing speed, without the need for multiple motors and control terminals to work together, saving resources.

[0013] 2. The spiral modular atmosphere dynamic calcining furnace drives the first conical tooth to rotate by rotating the spiral shaft. The first conical tooth and the second conical tooth are abutted and connected, so that the second conical tooth rotates. The second conical tooth rotates the rotating column. The surface of the rotating column is fixedly connected with a stirring rod. The surface of the stirring rod is fixedly connected with a stirring blade. Therefore, the stirring rod and the stirring blade will rotate to stir the powder material entering the discharge port of the support groove again to prevent the powder material from sticking when entering the next layer, which is beneficial to the calcination procedure of the next layer and improves the calcination effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front cross-sectional schematic diagram of the structure of the present invention;

[0015] Figure 2 It is a side view schematic diagram of the structure of the present invention;

[0016] Figure 3 It is a front view schematic diagram of the connection between the spiral rotating shaft and the connecting shaft of the present invention;

[0017] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0019] In the figure: 1. furnace body; 11. furnace shell; 12. material support groove; 13. spiral shaft; 14. partition; 15. feed port; 16. air inlet; 17. support groove discharge port; 18. heating groove; 19. motor; 2. speed regulating mechanism; 21. connecting shaft; 22. push ring; 23. push rod; 24. connecting block; 25. rotating ring; 26. supporting column; 27. connecting rod; 28. spring rod; 29. ​​pulley; 210. nut; 3. stirring mechanism; 31. first conical teeth; 32. second conical teeth; 33. rotating column; 34. bearing; 35. stirring rod; 36. stirring blade. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0021] See also Figure 1-5 , an embodiment provided by the present invention:

[0022] A spiral modular atmosphere dynamic calcining furnace comprises a furnace body 1 and a motor 19. The furnace body 1 comprises a furnace shell 11. The inner wall of the furnace shell 11 is connected with a material support groove 12. The inner wall of the material support groove 12 is connected with a spiral shaft 13. The inner wall of the furnace shell 11 is connected with a partition 14. The surface of the furnace shell 11 is connected with a feed port 15. The surface of the furnace shell 11 is connected with an air inlet 16. The surface of the material support groove 12 is connected with a support groove discharge port 17. The inner wall of the furnace shell 11 is connected with a heating groove 18. The surface of the furnace shell 11 is connected with a motor 19. A speed regulating mechanism 2 is arranged at one end of the spiral shaft 13. The speed regulating mechanism 2 comprises a connecting shaft 21. One end of the spiral shaft 13 is connected with the connecting shaft 21. The surface of the connecting shaft 21 is connected with a push ring 22. The surface of the push ring 22 is connected with a push rod 23. One end of the push rod 23 is connected with a connecting block 24. The feed port 15 facilitates the entry of raw materials. The partition 14 layers the device.

[0023] Furthermore, the material support grooves 12 are connected to the inner wall of the furnace shell 11 in three groups, the push rings 22 are slidably connected to the surface of the connecting shaft 21 in two groups, and the push rod 23 is movably connected to the push ring 22 through a turning knob. The push ring 22 is connected in two groups, which makes it easier to push the push rod 23 to move. The push rod 23 is movably connected to the surface of the push ring 22, which facilitates the movement of the position of the push rod 23.

[0024] Furthermore, a rotating ring 25 is connected to the surface of the connecting block 24, a supporting column 26 is connected to the surface of the connecting shaft 21, a connecting rod 27 is connected to the surface of the rotating ring 25, a spring rod 28 is connected to the surface of the furnace shell 11, a pulley 29 is connected to the surface of the spring rod 28, and a nut 210 is connected to one end of the connecting shaft 21. The supporting column 26 and the connecting rod 27 jointly ensure that the connecting shaft 21 will rotate along with the rotating ring 25 when it rotates.

[0025] Furthermore, the connecting blocks 24 are connected in six groups to the corresponding rotating rings 25, the supporting columns 26 and the connecting rods 27 are connected in a sliding manner, the pulleys 29 are connected in two groups to the two ends of the spring rods 28, and the corresponding connection between the connecting blocks 24 and the rotating rings 25 makes it easier for the push rod 23 to push the rotating rings 25. When the cobalt chloride particles are oxidized by the above-mentioned equipment, the following steps are included: the cobalt chloride particles are added to the upper feeding port 15 of the calcining furnace through the vibrating feeder, the powder material falls freely to the first-layer receiving hopper, is pushed to the support groove discharge port 17 at a uniform speed by the spiral rotating shaft 13, and slides to the second-layer spiral pusher at a uniform speed. The powder material is pushed to the third-layer spiral pushing device by the spiral propulsion device, and the powder material is rolled and calcined between the three-layer furnace beds. The calcination temperature is 300°C for the first layer, 600°C for the second layer, and 880°C for the third layer. The motor frequency is 15HZ, the first layer pushing speed is 600r / min, the second layer pushing speed is 800r / min, and the third layer pushing speed is 850r / min. During the process, 75% oxygen can be introduced into the air inlet 16, and finally the cobalt tetroxide powder material after dynamic calcination is obtained at the discharge port.

[0026] Furthermore, a stirring mechanism 3 is provided at one end of the spiral shaft 13, and the stirring mechanism 3 includes a first conical tooth 31, one end of the spiral shaft 13 is connected to the first conical tooth 31, the surface of the first conical tooth 31 is connected to the second conical tooth 32, the surface of the second conical tooth 32 is connected to a rotating column 33, the surface of the rotating column 33 is connected to a bearing 34, the surface of the rotating column 33 is connected to a stirring rod 35, one end of the stirring rod 35 is connected to a stirring blade 36, the first conical tooth 31 provides power for the entire device, and the stirring rod 35 fixes the position of the rotating column 33.

[0027] Furthermore, the first conical teeth 31 and the second conical teeth 32 have the same shape, the bearing 34 is fixedly connected to the surface of the support groove discharge port 17, the stirring rods 35 are in six groups and are connected to the stirring blades 36 accordingly, the first conical teeth 31 and the second conical teeth 32 have the same shape, which is more conducive to driving the second conical teeth 32 to rotate when the first conical teeth 31 rotate, and the stirring rods 35 and the stirring blades 36 are connected accordingly, so that the stirring can be more sufficient. When the above-mentioned equipment is used to perform thermal reduction treatment on cobalt oxalate, the following steps are included: the cobalt oxalate is added to the upper feed port 15 of the calcining furnace through the vibrating feeder, and the powder material falls freely to the first layer receiving hopper, and the powder material is fed to the first layer receiving hopper through the spiral rod. The powder material is pushed at a uniform speed to the support groove discharge port 17 and slides at a uniform speed to the second-layer spiral pushing device. The powder material slides to the second-layer spiral pushing device and is spirally pushed to the third spiral pushing device. The powder material is rolled and calcined between the three-layer furnace beds. The calcination temperature is 300°C for the first layer, 450°C for the second layer, and 520°C for the third layer. The motor frequency is 15HZ, the first layer pushing speed is 600r / min, the second layer pushing speed is 800r / min, and the third layer pushing speed is 850r / min. During the process, nitrogen is first purged at the air inlet 16, and then hydrogen is introduced. Finally, the cobalt powder particles after dynamic calcination are obtained at the discharge port.

[0028] Working principle: By rotating the nut 210, the position of the nut 210 is moved, and the nut 210 will push the push ring 22 to slide on the surface of the connecting shaft 21, and the push rod 23 is movably connected to the surface of the push ring 22 through the knob, so the position of the push rod 23 will move, and the push rod 23 is movably connected to the connecting block 24 through the knob, and the connecting block 24 is fixedly connected to the rotating ring 25, so the push rod 23 will push the rotating ring 25 to move, and the connecting rod 27 is fixedly connected to the surface of the rotating ring 25, and the support column 26 is fixedly connected Connected to the surface of the connecting shaft 21, the support column 26 and the connecting rod 27 are slidably connected together, so the position of the rotating ring 25 will not be offset and will expand outward. When the rotating ring 25 expands, the contact area between the belt and the rotating ring 25 increases and the speed slows down. At this time, the belt expands outward, and the spring rod 28 pushes the pulley 29 to move outward. The pulley 29 is tightly attached to the belt, so that the belt remains taut. When the nut 210 moves outward, the push spring will push the push ring 22 to move outward, and the rotating ring 25 contracts inward and the speed increases.

[0029] The first conical tooth 31 and the spiral shaft 13 are fixedly connected together. When the spiral shaft 13 rotates, the first conical tooth 31 will be driven to rotate. The surface of the first conical tooth 31 is abutted and connected with the second conical tooth 32, and the second conical tooth 32 will rotate. The surface of the second conical tooth 32 is fixedly connected with a rotating column 33, and the rotating column 33 will rotate. The surface of the rotating column 33 is fixedly connected with a bearing 34, and the bearing 34 is fixedly connected to the surface of the support groove discharge port 17. The bearing 34 will support and fix the rotating column 33. The surface of the rotating column 33 is fixedly connected with a stirring rod 35, and one end of the stirring rod 35 is fixedly connected with a stirring blade 36. Therefore, the rotation of the rotating column 33 will drive the stirring rod 35 and the stirring blade 36 to rotate, and the stirring rod 35 and the stirring blade 36 stir the raw materials in the support groove discharge port 17.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A spiral modular atmosphere dynamic calcining furnace, comprising a furnace body (1) and a motor (19), Features: The furnace body (1) comprises a furnace shell (11), the inner wall of the furnace shell (11) is connected to a material support groove (12), the inner wall of the material support groove (12) is connected to a spiral shaft (13), the inner wall of the furnace shell (11) is connected to a partition (14), the surface of the furnace shell (11) is connected to a material feed port (15), the surface of the furnace shell (11) is connected to an air inlet (16), the surface of the material support groove (12) is connected to a support groove discharge port (17), the inner wall of the furnace shell (11) is connected to a heating groove (18), the surface of the furnace shell (11) is connected to a motor (19), one end of the spiral shaft (13) is provided with a speed regulating mechanism (2), the speed regulating mechanism (2) comprises a connecting shaft (21), one end of the spiral shaft (13) is connected to a connecting shaft (21), the connecting shaft (19) is connected to a heating groove (18), and the surface of the furnace shell (11) is connected to a motor (19). The surface of the shaft (21) is connected to a push ring (22), the surface of the push ring (22) is connected to a push rod (23), one end of the push rod (23) is connected to a connecting block (24), the material support grooves (12) are connected to the inner wall of the furnace shell (11) in three groups, the push ring (22) is slidably connected to the surface of the connecting shaft (21) in two groups, the push rod (23) is movably connected to the push ring (22) through a knob, the surface of the connecting block (24) is connected to a rotating ring (25), the surface of the connecting shaft (21) is connected to a support column (26), the surface of the rotating ring (25) is connected to a connecting rod (27), the surface of the furnace shell (11) is connected to a spring rod (28), the surface of the spring rod (28) is connected to a pulley (29), and one end of the connecting shaft (21) is connected to a nut (210).

2. A spiral modular atmosphere dynamic calcining furnace according to claim 1, Features: The connection blocks (24) are in six groups and are correspondingly connected to the rotating rings (25); the support columns (26) and the connection rods (27) are slidably connected; and the pulleys (29) are in two groups and are connected to both ends of the spring rod (28).

3. A spiral modular atmosphere dynamic calcining furnace according to claim 1, Features: A stirring mechanism (3) is provided at one end of the spiral shaft (13), and the stirring mechanism (3) comprises a first conical tooth (31); one end of the spiral shaft (13) is connected to the first conical tooth (31); the surface of the first conical tooth (31) is connected to a second conical tooth (32); the surface of the second conical tooth (32) is connected to a rotating column (33); the surface of the rotating column (33) is connected to a bearing (34); the surface of the rotating column (33) is connected to a stirring rod (35); and one end of the stirring rod (35) is connected to a stirring blade (36).

4. A spiral modular atmosphere dynamic calcining furnace according to claim 3, Features: The first conical tooth (31) and the second conical tooth (32) have the same shape. The bearing (34) is fixedly connected to the surface of the support groove blanking port (17). The stirring rods (35) are in six groups and are correspondingly connected to the stirring blades (36).

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