High-temperature calcination oxidation-reduction furnace

Abstract

The utility model discloses a high-temperature calcination oxidation reduction furnace, which relates to the field of calcination processing, and comprises a base, a box body is arranged on the base, a roller is rotatably arranged in the box body, and a plurality of spiral blades are arranged in the roller, so that the roller rotates forwards to stir materials and rotates backwards to discharge materials; a plurality of heating rods are arranged in the box body; a fixing pipe is fixedly arranged in the roller, and the end of the fixing pipe penetrates through the roller and is fixed to the roller. The device has the beneficial effects that heat is emitted through the plurality of heating rods, and the heat is transferred to the roller by taking air as a medium and heats the roller, so that the heating uniformity of the roller can be improved, the heat can be gathered through the box body, the heat efficiency is improved, and oxygen or inert gas can be fed into the roller through the air blower; the gases with different attributes can quickly interfere with the state of the material reaction, and the hysteresis of controlling the calcination reaction through the temperature is remarkably reduced in a mode of combining the introduction of the gases with different attributes and the control of the power of the heating rod.

Description

Technical Field

[0001] The utility model relates to the technical field of calcination processing, in particular to a high-temperature calcination oxidation-reduction furnace. Background Art

[0002] The mineral powder can be calcined to improve the material's tension, hardness, impact resistance and other properties.

[0003] The existing calcining furnace mainly controls the calcining efficiency by temperature. However, in actual production, it is difficult to change the temperature quickly by controlling the power of the electric heating rod, because the residual temperature contained in the kiln body will not decrease quickly. At the same time, the kiln is large in size and it is not easy to heat up quickly.

[0004] In addition, existing kilns generally place the heating device close to the drum, which will cause the local temperature of the drum to be too high, resulting in uneven calcination effect. Utility Model Content

[0005] The purpose of the utility model is to provide a high-temperature calcination oxidation-reduction furnace in order to solve the above-mentioned problems, as described below.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a high-temperature calcination oxidation-reduction furnace, comprising a base, a box body is arranged on the base, a roller is rotatably arranged in the box body, and a plurality of spiral blades are arranged in the roller, so that the roller can achieve forward rotation to stir the material and reverse rotation to discharge the material;

[0008] A plurality of heating rods are arranged in the box;

[0009] A fixed tube is fixedly arranged in the drum, and an end of the fixed tube passes through the drum and is fixed to the drum, and an end of the fixed tube passes through the box and is rotatably connected to the box;

[0010] The box body is provided with a rotating assembly for rotating the fixed pipe;

[0011] The box body is provided with a blower for conveying oxygen or inert gas into the drum, and the blower output pipe is rotatably connected with the end of the fixed pipe passing through the box body.

[0012] The high-temperature calcination oxidation-reduction furnace is used to put materials into a drum, heat the drum through a plurality of heating rods, rotate the fixed tube through a rotating assembly, rotate the drum through the fixed tube, and the drum cooperates with the spiral blades to achieve stirring of the materials by rotation, and discharge the materials when reversed;

[0013] Oxygen or inert gas can be sent into the drum through the blower to control the reaction efficiency of the material;

[0014] After all the materials are poured out of the drum, the blower is used to blow air into the fixed pipe at full power. The airflow is sprayed toward the inner wall of the drum through several through holes, which can clean up the powder attached to the inner wall of the drum.

[0015] Preferably, the surface of the box is covered with a heat insulation board.

[0016] Preferably, the rotating assembly includes a torque motor, which is fixedly mounted on a housing, and a sprocket 2 is fixed on a rotating shaft of the torque motor, a sprocket 1 is fixed on a surface of the fixed tube, and the sprocket 1 is transmission-connected to the sprocket 2 via a chain.

[0017] Preferably, the open end of the drum passes through the box body and is rotatably connected to the box body, and a sealing cover is rotatably provided at the open end of the drum, and the sealing cover is fixed to the box body through a fixing frame, a switch door is provided at the bottom of the sealing cover, and a ventilation pipe and a feeding hopper are provided on the upper side of the sealing cover.

[0018] Preferably, two supporting wheels 1 are provided on the base for supporting the drum, an annular groove is provided on the surface of the drum, and two supporting wheels 2 are provided at the bottom of the inner wall of the box for supporting the drum, and the supporting wheels 2 are in clearance with the annular groove.

[0019] Preferably, the heating rods are carbon silicon rods, and the heating rods are distributed on the top and bottom of the drum.

[0020] Preferably, the fixing tube is fixed to the inner wall of the drum via a plurality of fixing rods.

[0021] Preferably, a plurality of through holes are provided on the surface of the fixed tube, a connecting rod is slidably arranged in the fixed tube, one end of the connecting rod passes through the end of the fixed tube and is fixed with a baffle for sealing the port of the fixed tube, and the other end of the connecting rod passes through the output end of the blower, an electric push rod is provided on the box body, and the movable end of the electric push rod is fixed to the end of the connecting rod for moving the connecting rod, a support plate is fixed on the connecting rod, and the support plate is in contact with the inner wall of the fixed tube.

[0022] The beneficial effects are:

[0023] 1. Heat is emitted through several heating rods, and the heat is transferred to the drum through air as a medium to heat the drum, which can improve the uniformity of heating the drum, thereby ensuring the uniformity of the drum calcining materials. The box can gather heat to improve thermal efficiency. Oxygen or inert gas can be sent into the drum through the blower to control the material reaction efficiency. Gases with different properties can quickly intervene in the state of material reaction. By introducing gases with different properties and controlling the power of the heating rods, the hysteresis of the calcination reaction controlled by temperature is significantly reduced;

[0024] 2. The blower blows air into the fixed tube at full power, and the airflow is sprayed toward the inner wall of the drum through several through holes, which can clean up the powder attached to the inner wall of the drum;

[0025] 3. Move the connecting rod through the electric push rod so that the baffle blocks the fixed pipe port. This can increase the gas flow rate through the through hole, thereby increasing the force of the airflow impacting the inner wall of the drum, thereby improving the effect of cleaning the material on the inner wall of the drum. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 This is a front view structural diagram of the utility model;

[0028] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0029] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0030] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the drum of the utility model;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the fixed pipe of the utility model;

[0032] Figure 6 It is a three-dimensional structural schematic diagram of the sealing cover of the utility model.

[0033] The following are the descriptions of the reference numerals:

[0034] 1. Base; 2. Box; 3. Heating rod; 4. Rotating assembly; 5. Support wheel 1; 6. Sealing cover; 7. Ventilation pipe; 8. Feed hopper; 9. Fixed frame; 10. Open and close door; 11. Heat insulation board; 12. Fixed pipe; 13. Torque motor; 14. Rotating shaft; 15. Sprocket 1; 16. Sprocket 2; 17. Chain; 18. Blower; 19. Electric push rod; 20. Connecting rod; 21. Roller; 22. Spiral blade; 23. Annular groove; 24. Support wheel 2; 25. Fixed rod; 26. Through hole; 27. Support plate; 28. Baffle. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0036] See also Figure 1-Figure 6 As shown, the utility model provides a high-temperature calcination oxidation-reduction furnace, including a base 1, a box 2 is arranged on the base 1, a drum 21 is rotatably arranged in the box 2, and a plurality of spiral blades 22 are arranged in the drum 21, so that the drum 21 can achieve forward rotation to stir materials and reverse rotation to discharge materials. The design here is the prior art, which is the same as that of a cement mixer;

[0037] A plurality of heating rods 3 are arranged in the box body 2;

[0038] A fixed tube 12 is fixedly arranged in the drum 21, and an end of the fixed tube 12 passes through the drum 21 and is fixed to the drum 21, and an end of the fixed tube 12 passes through the box body 2 and is rotatably connected to the box body 2;

[0039] The box body 2 is provided with a rotating assembly 4 for rotating the fixed tube 12;

[0040] A blower 18 is provided on the box body 2 for conveying oxygen or inert gas into the drum 21 , and an output pipe of the blower 18 is rotatably connected to an end of the fixed pipe 12 passing through the box body 2 .

[0041] As an optional implementation, the surface of the box body 2 is covered with a heat insulation board 11 to reduce the heat diffused into the workshop and avoid the impact of high temperature on the staff.

[0042] The rotating assembly 4 includes a torque motor 13, which is fixedly arranged on the box body 2, and a sprocket 2 16 is fixed on the rotating shaft 14 of the torque motor 13, a sprocket 15 is fixed on the surface of the fixed tube 12, and the sprocket 15 is connected to the sprocket 2 16 through a chain 17;

[0043] The rotating shaft 14 of the torque motor 13 rotates the sprocket 2 16 , and the sprocket 2 16 cooperates with the sprocket 1 15 and the chain 17 to rotate the fixed pipe 12 .

[0044] The open end of the drum 21 passes through the box body 2 and is rotatably connected to the box body 2, and a sealing cover 6 is rotatably provided at the open end of the drum 21, and the sealing cover 6 is fixed to the box body 2 through a fixing frame 9, a switch door 10 is provided at the bottom of the sealing cover 6, and a ventilation pipe 7 and a feeding hopper 8 are provided on the upper side of the sealing cover 6;

[0045] A switch door 10 is provided to facilitate unloading of materials, and a feeding hopper 8 is provided to facilitate loading of materials;

[0046] The ventilation pipe 7 is used to connect to an external induced draft fan to increase the air flow velocity and thus improve the calcining effect.

[0047] Two supporting wheels 1 5 are provided on the base 1 for supporting the drum 21. An annular groove 23 is provided on the surface of the drum 21. Two supporting wheels 24 are provided at the bottom of the inner wall of the box body 2 for supporting the drum 21. The supporting wheels 24 and the annular groove 23 are clearance-matched. The supporting wheels 1 5 and 24 cooperate to stably support the drum 21. The supporting wheels 24 and the annular groove 23 cooperate to not only support the drum 21, but also limit the rotation trajectory of the drum 21.

[0048] The heating rods 3 are carbon silicon rods, and the heating rods 3 are distributed at the top and bottom of the drum 21. The carbon silicon rods have a good preheating effect, and even after power failure, the carbon silicon rods can still maintain a relatively high residual temperature.

[0049] The fixed tube 12 is fixed to the inner wall of the drum 21 via a plurality of fixing rods 25 , which can improve the firmness of the connection between the fixed tube 12 and the drum 21 .

[0050] A plurality of through holes 26 are provided on the surface of the fixed tube 12, a connecting rod 20 is slidably provided in the fixed tube 12, one end of the connecting rod 20 passes through the end of the fixed tube 12 and is fixed with a baffle 28 for blocking the port of the fixed tube 12, and the other end of the connecting rod 20 passes through the output end of the blower 18, an electric push rod 19 is provided on the box body 2, and the movable end of the electric push rod 19 is fixed to the end of the connecting rod 20 for moving the connecting rod 20, a supporting plate 27 is fixed on the connecting rod 20, and the supporting plate 27 is in contact with the inner wall of the fixed tube 12, and the supporting plate 27 is used to support the connecting rod 20;

[0051] When the material powder on the inner wall of the drum 21 is cleaned by air flow, the connecting rod 20 is first moved by the electric push rod 19, and the baffle 28 is moved by the connecting rod 20. The port of the fixed tube 12 is blocked by the baffle 28. This can increase the gas flow rate through the through hole 26, thereby increasing the force of the air flow impacting the inner wall of the drum 21, and further improving the effect of cleaning the material on the inner wall of the drum 21.

[0052] With the above structure, the material is put into the drum 21, the drum 21 is heated by a plurality of heating rods 3, the fixed tube 12 is rotated by the rotating assembly 4, and the drum 21 is rotated by the fixed tube 12. The drum 21 cooperates with the spiral blades 22 to enable the drum 21 to stir the material by rotation, and the material can be discharged when it is reversed;

[0053] Oxygen or inert gas can be delivered into the drum 21 through the blower 18, thereby controlling the material reaction efficiency;

[0054] After all the materials are poured out of the drum 21 , the blower 18 blows air into the fixed pipe 12 at full power, and the air flow passes through the plurality of through holes 26 and sprays toward the inner wall of the drum 21 , so that the powder attached to the inner wall of the drum 21 can be cleaned off.

[0055] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high temperature calcination redox furnace, characterized in that: It comprises a base (1), a box (2) is arranged on the base (1), a roller (21) is rotatably arranged in the box (2), and a plurality of spiral blades (22) are arranged in the roller (21), so that the roller (21) can stir the material by forward rotation and discharge the material by reverse rotation; A plurality of heating rods (3) are arranged in the box (2); A fixed tube (12) is fixedly arranged inside the drum (21), and an end of the fixed tube (12) passes through the drum (21) and is fixed to the drum (21), and an end of the fixed tube (12) passes through the box (2) and is rotatably connected to the box (2); The box body (2) is provided with a rotating assembly (4) for rotating the fixed tube (12); The box body (2) is provided with a blower (18) for conveying oxygen or inert gas into the drum (21), and the output pipe of the blower (18) is rotatably connected to the end of the fixed pipe (12) passing through the box body (2).

2. A high temperature calcination oxidation-reduction furnace according to claim 1, characterized in that: The surface of the box body (2) is covered with a heat insulation board (11).

3. A high temperature calcination redox furnace according to claim 1, characterized in that: The rotating assembly (4) comprises a torque motor (13), the torque motor (13) is fixedly arranged on the box body (2), and a second sprocket (16) is fixed on the rotating shaft (14) of the torque motor (13), a first sprocket (15) is fixed on the surface of the fixed tube (12), and the first sprocket (15) is connected to the second sprocket (16) through a chain (17).

4. A high temperature calcination redox furnace according to claim 1, characterized in that: The open end of the drum (21) passes through the box body (2) and is rotatably connected to the box body (2), and a sealing cover (6) is rotatably provided at the open end of the drum (21), and the sealing cover (6) is fixed to the box body (2) via a fixing frame (9), a switch door (10) is provided at the bottom of the sealing cover (6), and a ventilation pipe (7) and a feeding hopper (8) are provided on the upper side of the sealing cover (6).

5. The high temperature calcination oxidation-reduction furnace according to claim 1, characterized in that: The base (1) is provided with two supporting wheels (5) for supporting the roller (21), the surface of the roller (21) is provided with an annular groove (23), and the bottom of the inner wall of the box body (2) is provided with two supporting wheels (24) for supporting the roller (21), and the supporting wheels (24) are clearance-matched with the annular groove (23).

6. The high temperature calcination oxidation-reduction furnace according to claim 1, characterized in that: The heating rods (3) are carbon silicon rods, and the heating rods (3) are distributed at the top and bottom of the roller (21).

7. The high temperature calcination oxidation-reduction furnace according to claim 1, characterized in that: The fixed tube (12) is fixed to the inner wall of the drum (21) via a plurality of fixing rods (25).

8. The high temperature calcination oxidation-reduction furnace according to claim 1, characterized in that: A plurality of through holes (26) are provided on the surface of the fixed tube (12); a connecting rod (20) is slidably arranged in the fixed tube (12); one end of the connecting rod (20) passes through the end of the fixed tube (12) and is fixed with a baffle (28) for blocking the port of the fixed tube (12); and the other end of the connecting rod (20) passes through the output end of the blower (18); an electric push rod (19) is provided on the box body (2); and a movable end of the electric push rod (19) is fixed to the end of the connecting rod (20) for moving the connecting rod (20); a support plate (27) is fixed on the connecting rod (20), and the support plate (27) is in contact with the inner wall of the fixed tube (12).

Images