Aluminum oxide red mud reduction device

Abstract

An aluminum oxide red mud reduction device belongs to the technical field of red mud processing and comprises a heating tank, a feeding box is fixedly mounted in the middle of the top of the heating tank, a feeding hopper is inserted into the top of the feeding box, a rectangular opening is jointly formed in the opposite sides of the heating tank and the feeding box, and a protection assembly is arranged at the top of the feeding box. A mixing motor is installed in the middle of the bottom of the heating tank, a mixing shaft is fixedly installed at the shaft end of a power output shaft of the mixing motor, the top end of the mixing shaft movably penetrates through the top of an inner cavity of the heating tank, and under rotation of the mixing shaft, a lead screw nut can move up and down in a reciprocating mode under matched use of a dispersing assembly; through the hinge rods hinged to the adjacent lead screw nuts, the flow guide plates can be unfolded or folded, and then the coal discharging position can be changed, so that coal can be uniformly added into the inner cavity of the heating tank through the material scattering groove, the red mud and coal mixing time is shortened, and the red mud processing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of red mud processing, in particular to an alumina red mud reduction device. Background Art

[0002] Red mud is industrial solid waste discharged when the aluminum industry extracts alumina. It is called red mud because it contains a large amount of iron oxide and looks similar to red soil. Due to the difference in ore grade, production method and technical level, about 1.0 to 1.8 tons of red mud are discharged for every ton of alumina produced. As China is a major alumina producer, with the increasing stock of red mud and the increasingly serious pollution to the environment, it is imperative to maximize the resource utilization of red mud.

[0003] During the red mud reduction process, coal is generally used as a reducing agent to separate and extract minerals and aluminum minerals in the red mud. However, when the coal is added through the feed box, the coal can only be added to a certain position in the heating tank, which increases the mixing time of the coal and red mud and reduces the working efficiency of the red mud reduction.

[0004] In view of the above problems, an alumina red mud reduction device is proposed. Summary of the invention

[0005] The object of the present invention is to provide an alumina red mud reduction device, which can solve the problems raised in the above background by working with the device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an alumina red mud reduction device, comprising a heating tank, a feed box is fixedly installed at the middle position of the top of the heating tank, a feed hopper is plugged into the top of the feed box, a rectangular opening is commonly provided on the opposite sides of the heating tank and the feed box, a protective component is arranged on the top of the feed box, a mixing motor is installed at the middle position of the bottom of the heating tank, a mixing shaft is fixedly installed at the end of the power output shaft of the mixing motor, the top end of the mixing shaft movably passes through the top of the inner cavity of the heating tank, a plurality of mixing blades are fixedly sleeved near the bottom end of the outer periphery of the mixing shaft, a material spreading trough is fixedly sleeved near the top end of the outer periphery of the mixing shaft, a cleaning component is arranged near the middle position of the inner cavity of the heating tank, and a dispersion component is arranged above the inner cavity of the material spreading trough; The dispersion component includes conical blocks installed together on both sides of the rectangular opening inner cavity and a reciprocating screw rotatably connected to the bottom of the conical block, the bottom end of the reciprocating screw is fixedly connected to the top end of the mixing shaft, a screw nut is movably sleeved near the middle position of the outer periphery of the reciprocating screw, hinged rods are hinged on the front and rear sides of the screw nut, and a guide plate is hinged on the far end of the hinged rod, and the guide plate is movably connected to the conical block.

[0007] Furthermore, guide blocks are fixedly installed on both sides of the screw nut, and guide rods are movably penetrated through the tops of the guide blocks, and the tops of the guide rods are fixedly connected to the conical blocks.

[0008] Furthermore, two crushing rollers are rotatably connected to the other side of the inner cavity of the feed box, one end of the crushing rollers moves through one side of the inner cavity of the feed box, the outer periphery of the crushing rollers near one end is meshed with driving gears, and the driving gears are meshed with each other, and a crushing motor is fixedly installed at the end of the front crushing roller, an L-shaped plate is fixedly installed on one side of the crushing motor, and the other side of the L-shaped plate is fixedly connected to the feed box.

[0009] Furthermore, the cleaning assembly includes a fixed plate fixedly installed at a middle position on the rear side of the inner cavity of the heating tank and a compression telescopic rod fixedly installed at the top of the fixed plate near the front and rear sides, the top of the compression telescopic rod is jointly fixedly installed with a cleaning plate, and the top of the cleaning plate and the spreading trough are arranged to fit each other, the outer periphery of the compression telescopic rod is movably sleeved with a compression spring, and the top and bottom ends of the compression spring are respectively fixedly connected to the cleaning plate and the fixed plate.

[0010] Furthermore, the protective component includes a cross bar that movably passes through the rear side of the inner cavity of the heating tank near the middle position, a transmission rod is provided on the top of the cross bar, the front end of the transmission rod is rotatably connected to the rear side of the feed box, a cam is fixedly sleeved on the outer periphery of the transmission rod near the middle position, a sliding plate is provided on one side of the cam, and the front side of the sliding plate is slidably connected to the feed box, a rack plate is fixedly installed on one side of the sliding plate, a rotating gear is meshed with the top of the rack plate near one side, a transmission gear is meshed with the top of the rotating gear, and a sealing plate is provided on the top of the feed box.

[0011] Furthermore, U-shaped blocks are fixedly installed on both sides of the sealing plate close to the opposite side, a threaded sleeve is fixedly installed on one side of the U-shaped block, a threaded rod is threaded through the inner cavity of the threaded sleeve, a hand-cranked wheel is fixedly installed at the rear end of the threaded rod on the other side, and is fixedly connected to the transmission gear at the outer rear end of the threaded rod on one side.

[0012] Furthermore, a driven bevel gear is fixedly installed at the front end of the cross bar, a driving bevel gear is meshed with the front side of the driven bevel gear, the driving bevel gear is fixedly sleeved at the outer periphery of the mixing shaft, a groove wheel A is fixedly sleeved at the rear ends of the cross bar and the transmission rod, and a transmission belt A is commonly sleeved between the groove wheels A; a support plate is rotatably connected to the outer periphery of the transmission rod near the middle position, and the bottom of the support plate is fixedly connected to the heating tank.

[0013] Furthermore, a limit block is fixedly installed at the bottom of the threaded sleeve, and the inner cavity of the limit block movably penetrates the limit rod; Mounting blocks are fixedly installed near the top and sides of the feed box, the front ends of the threaded rods are rotatably connected to the rear sides of adjacent mounting blocks, the rear ends of the threaded rods are movable through the rear sides of adjacent mounting blocks, and groove wheels B are fixedly sleeved on the outer circumference of the threaded rods near the rear ends, and a transmission belt B is commonly sleeved between the groove wheels B.

[0014] Furthermore, a reset telescopic rod is fixedly installed on one side of the sliding plate, a connecting block is fixedly installed on the end of the reset telescopic rod, and the other side of the connecting block is fixedly connected to the feed box, and a reset spring is provided on the peripheral movable sleeve of the reset telescopic rod, and the two ends of the reset spring are respectively fixedly connected to the sliding plate and the connecting block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: With the rotation of the mixing shaft, the lead screw nut can be reciprocated up and down with the cooperation of the dispersion component. The guide plate can be unfolded or retracted through the hinged rod hinged on the adjacent lead screw nut, thereby changing the position of coal feeding, so that it can be evenly added to the inner cavity of the heating tank through the spreading trough, shortening the mixing time of red mud and coal and improving the efficiency of red mud processing.

[0016] As the spreading trough rotates, the cleaning plate can fit tightly against the bottom of the spreading trough with the cooperation of the cleaning component, thereby cleaning the holes at the bottom of the spreading trough, preventing coal from clogging the inner cavity of the holes, and improving the efficiency of coal feeding.

[0017] With the rotation of the mixing shaft and the coordinated use of the protective component, the sealing plate can be opened and closed alternately. On the one hand, it can prevent the coal dust from being completely released when the coal is crushed, which would cause the operator to inhale too much coal dust. On the other hand, it can prevent the heating tank from generating excessive air pressure during the heating process, which would cause damage to the heating tank and extend the service life of the heating tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is another perspective overall three-dimensional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of a cutaway three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the sealing plate, driving gear and crushing roller of the present invention; Figure 5 It is a solid diagram of the three-dimensional structure of the protection component of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the transmission belt A, mixing blades and feed box of the present invention; Figure 7 For the present invention Figure 4Enlarged view of point A in the middle; Figure 8 For the present invention Figure 5 Enlarged view of point B in the middle; Fig. 9 For the present invention Figure 6 Enlarged view of center C.

[0019] In the figure: 1. Heating tank; 2. Feed box; 21. Crushing roller; 22. Driving gear; 23. Crushing motor; 24. L-shaped plate; 3. Mixing motor; 4. Mixing shaft; 5. Mixing blade; 6. Dispersion assembly; 61. Conical block; 62. Reciprocating screw; 63. Screw nut; 631. Guide block; 632. Guide rod; 64. Articulated rod; 65. Guide plate; 7. Cleaning assembly; 71. Fixed plate; 72. Compression telescopic rod; 73. Compression spring; 74. Cleaning plate; 8. Protection assembly; 81. Crossbar; 811. Driven bevel gear; 812, active bevel gear; 813, transmission belt A; 82, transmission rod; 821, support plate; 83, cam; 84, sliding plate; 841, reset telescopic rod; 842, reset spring; 843, connecting block; 85, rack plate; 86, rotating gear; 87, transmission gear; 88, sealing plate; 881, U-shaped block; 882, threaded sleeve; 8821, limit block; 8822, limit rod; 883, threaded rod; 8831, mounting block; 8832, transmission belt B; 9, spreading trough. 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] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] The purpose of this embodiment is to provide an alumina red mud reduction device, including a heating tank 1, the heating tank 1 can heat red mud and coal, a feed box 2 is fixedly installed at the middle position of the top of the heating tank 1, a feed hopper is plugged into the top of the feed box 2, the heating tank 1 and the feed box 2 have a rectangular opening on the opposite sides, a protective component 8 is provided on the top of the feed box 2, a mixing motor 3 is installed at the middle position of the bottom of the heating tank 1, a mixing shaft 4 is fixedly installed at the end of the power output shaft of the mixing motor 3, the top end of the mixing shaft 4 movably passes through the top of the inner cavity of the heating tank 1, and the heating tank A bearing is fixedly installed at the bottom of the inner cavity 1, and the top of the mixing shaft 4 passes through the inner cavity of the bearing. A plurality of mixing blades 5 are fixedly sleeved near the bottom of the outer periphery of the mixing shaft 4, and the mixing blades 5 can mix the red mud and the coal. A spreading trough 9 is fixedly sleeved near the top of the outer periphery of the mixing shaft 4, and a plurality of holes are opened at the bottom of the inner cavity of the spreading trough 9. When the mixing shaft 4 rotates, the spreading trough 9 can be driven to rotate, and the coal can be evenly sprinkled in the inner cavity of the heating tank 1. A cleaning component 7 is arranged near the middle position of the inner cavity of the heating tank 1, and a dispersion component 6 is arranged above the inner cavity of the spreading trough 9; The dispersion component 6 includes a conical block 61 installed together on both sides of the rectangular opening inner cavity and a reciprocating screw 62 rotatably connected to the bottom of the conical block 61. The conical block 61 can prevent coal from accumulating on its top. The bottom end of the reciprocating screw 62 is fixedly connected to the top of the mixing shaft 4. A screw nut 63 is movably sleeved on the outer periphery of the reciprocating screw 62 near the middle position. A hinged rod 64 is hinged on the front and rear sides of the screw nut 63. A guide plate 65 is hinged on the far end of the hinged rod 64. The guide plate 65 is movably connected to the conical block 61 and reciprocates up and down on the screw nut 63. The guide plate 65 can be unfolded or retracted by the hinged rod 64 hinged on the adjacent screw nut 63, thereby changing the position of coal discharge, so that it can be evenly added to the inner cavity of the heating tank 1 through the spreading trough 9, shortening the mixing time of red mud and coal and improving the efficiency of red mud processing.

[0023] Guide blocks 631 are fixedly installed on both sides of the screw nut 63, and guide rods 632 are movably penetrated through the tops of the guide blocks 631. Through holes are opened on the tops of the guide blocks 631, and the guide rods 632 penetrate the inner cavities of the through holes, and the tops of the guide rods 632 are fixedly connected to the conical blocks 61.

[0024] Two crushing rollers 21 are rotatably connected to the other side of the inner cavity of the feed box 2, and one end of the crushing rollers 21 can move through one side of the inner cavity of the feed box 2. Inclined plates are fixedly installed on the front and rear sides of the feed box 2 near the top and bottom. The outer periphery of the crushing rollers 21 is meshed with driving gears 22 near one end, and the driving gears 22 are meshed with each other. A crushing motor 23 is fixedly installed at the end of the front crushing roller 21, and an L-shaped plate 24 is fixedly installed on one side of the crushing motor 23, and the other side of the L-shaped plate 24 is fixedly connected to the feed box 2. The agglomerated coal can be crushed by the crushing rollers 21, and the coal can be evenly sprinkled in the inner cavity of the heating tank 1 later.

[0025] The cleaning assembly 7 includes a fixed plate 71 fixedly installed at the rear side of the inner cavity of the heating tank 1 near the middle position and a compression telescopic rod 72 fixedly installed at the top of the fixed plate 71 near the front and rear sides. A cleaning plate 74 is fixedly installed on the top of the compression telescopic rod 72, and the top of the cleaning plate 74 and the spreading trough 9 are arranged to fit each other. The outer periphery of the compression telescopic rod 72 is movably sleeved with a compression spring 73, and the top and bottom ends of the compression spring 73 are fixedly connected to the cleaning plate 74 and the fixed plate 71 respectively. Under the rotation of the spreading trough 9 and the coordinated use of the cleaning assembly 7, the cleaning plate 74 can be tightly fitted with the bottom of the spreading trough 9, so that the holes at the bottom of the spreading trough 9 can be cleaned, avoiding coal clogging the inner cavity of the holes and improving the efficiency of coal feeding.

[0026] The protection component 8 includes a cross bar 81 which is movable and passes through the rear side of the inner cavity of the heating tank 1 near the middle position. A transmission rod 82 is arranged on the top of the cross bar 81. The front end of the transmission rod 82 is rotatably connected to the rear side of the feed box 2. A cam 83 is fixedly sleeved on the outer periphery of the transmission rod 82 near the middle position. A sliding plate 84 is arranged on one side of the cam 83, and the front side of the sliding plate 84 is slidably connected to the feed box 2. A rack plate 85 is fixedly installed on one side of the sliding plate 84. A rotating gear 86 is meshed with the top of the rack plate 85 near one side. A transmission gear 87 is meshed with the top of the rotating gear 86. A sealing plate 88 is arranged on the top of the feed box 2. U-shaped blocks 881 are fixedly installed on both sides of the sealing plate 88 near the opposite side, and a threaded sleeve 882 is fixedly installed on one side of the U-shaped block 881. A threaded rod 883 is threaded through the inner cavity of the threaded sleeve 882, and a hand-cranked wheel is fixedly installed at the rear end of the threaded rod 883 on the other side. The rear end of the outer periphery of the threaded rod 883 on one side is fixedly connected to the transmission gear 87, which can make the sealing plate 88 open and close alternately. On the one hand, it can prevent the coal dust from being completely released when the coal is crushed, thereby causing the operator to inhale too much coal dust, and to a certain extent, it can prevent the heating tank 1 from generating excessive air pressure during the heating process, causing damage to the heating tank 1, thereby extending the service life of the heating tank 1.

[0027] A driven bevel gear 811 is fixedly installed at the front end of the cross bar 81, and a driving bevel gear 812 is meshed with the front side of the driven bevel gear 811. The driving bevel gear 812 is fixedly sleeved on the outer periphery of the mixing shaft 4. A groove wheel A is fixedly sleeved at the rear ends of the cross bar 81 and the transmission rod 82, and a transmission belt A813 is commonly sleeved between the groove wheels A; a support plate 821 is rotatably connected to the outer periphery of the transmission rod 82 near the middle position, and the bottom of the support plate 821 is fixedly connected to the heating tank 1. The transmission rod 82 can be rotated under the coordinated use of the driven bevel gear 811, the driving bevel gear 812 groove wheel A and the transmission belt A813.

[0028] The bottom of the threaded sleeve 882 is fixedly installed with a limit block 8821, and the inner cavity of the limit block 8821 is movably penetrated by the limit rod 8822; the top of the feed box 2 is fixedly installed with mounting blocks 8831 near the four sides, the front ends of the threaded rod 883 are rotatably connected to the rear sides of adjacent mounting blocks 8831, the outer periphery of the threaded rod 883 is provided with opposite external threads near the front and rear ends, the rear ends of the threaded rod 883 are movably penetrated by the rear sides of adjacent mounting blocks 8831, the outer periphery of the threaded rod 883 is fixedly sleeved with a groove wheel B near the rear end, and a transmission belt B8832 is commonly sleeved between the groove wheels B.

[0029] A reset telescopic rod 841 is fixedly installed on one side of the sliding plate 84, and a connecting block 843 is fixedly installed on the end of the reset telescopic rod 841, and the other side of the connecting block 843 is fixedly connected to the feed box 2. A reset spring 842 is provided on the outer peripheral movable sleeve of the reset telescopic rod 841, and the two ends of the reset spring 842 are respectively fixedly connected to the sliding plate 84 and the connecting block 843. The transmission rod 82 can be rotated under the rotation of the cross bar 81, and the cam 83 fixedly sleeved on the outer periphery of the transmission rod 82 can make the sliding plate 84 reciprocate between the reset telescopic rod 841 and the reset spring 842. The rack plate 85 fixed on the sliding plate 84 can make the rotating gear 86 rotate, and the threaded rod 883 can be rotated under the transmission of the transmission gear 87, which is convenient for the subsequent work.

[0030] In summary, the working principle of the present invention is as follows: add an appropriate amount of red mud through the feed pipe on the heating tank 1, then close the solenoid valve on the heating tank 1, then add an appropriate amount of coal reducing agent into the feed box 2, then start the mixing motor 3 through the external controller, the power output shaft of the mixing motor 3 rotates to drive the mixing shaft 4 fixed at the end of the power output shaft of the mixing motor 3 to rotate, the red mud can be mixed through a plurality of mixing blades 5, the coal to be agglomerated can be crushed under the rotation of the crushing roller 21, and the crushed coal falls into the inner cavity of the spreading trough 9, and during the rotation of the mixing shaft 4, the reciprocating screw 62 fixed at the top of the mixing shaft 4 can be rotated, The screw nut 63 movable on the outer periphery of the reciprocating screw 62 reciprocates up and down under the limit of the guide block 631 and the guide rod 632, and the guide plate 65 can be unfolded or retracted through the hinged rod 64 hinged on the adjacent screw nut 63, so that the position of coal feeding can be changed, so that it can be evenly added to the inner cavity of the heating tank 1 through the spreading trough 9. Under the rotation of the spreading trough 9, the cleaning plate 74 can be tightly fitted with the bottom of the spreading trough 9 under the cooperation of the cleaning component 7, so that the holes at the bottom of the spreading trough 9 can be cleaned to avoid coal blocking the inner cavity of the hole. With the cooperation of belt A813, the transmission rod 82 can be rotated under the rotation of the cross bar 81, and the sliding plate 84 can be reciprocated by the reset telescopic rod 841 and the reset spring 842 through the cam 83 fixedly sleeved on the outer periphery of the transmission rod 82. The rotating gear 86 can be rotated by the rack plate 85 fixed on the sliding plate 84, and the threaded rod 883 can be rotated under the transmission of the transmission gear 87. The outer periphery of the threaded rod 883 is provided with opposite external threads near the front and rear ends. When the threaded rod 883 on one side rotates, the threaded rod 883 on the other side can be rotated through the transmission of the groove wheel B and the transmission belt B8832. Under the rotation of the threaded rod 883, the threaded sleeve 882 which is threadedly connected to the threaded rod 883 moves to the side away from each other under the limitation of the limit block 8821 and the limit rod 8822. Under the connection of the adjacent U-shaped blocks 881, the sealing plate 88 can be opened to discharge the hot steam generated by the heating in the inner cavity of the heating tank 1. This can prevent the excessive air pressure generated by the heating tank 1 during the heating process to a certain extent, causing damage to the heating tank 1 and extending the service life of the heating tank 1. When the sliding plate 84 returns to its initial state, the sealing plates 88 can be fitted together, which can prevent the coal dust from completely overflowing when the coal is crushed, thereby causing the operator to inhale too much coal dust.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An alumina red mud reduction device, comprising a heating tank (1), characterized in that: A feed box (2) is fixedly installed at the middle position of the top of the heating tank (1), a feed hopper is inserted at the top of the feed box (2), a rectangular opening is commonly provided on the opposite sides of the heating tank (1) and the feed box (2), a protective component (8) is arranged at the top of the feed box (2), a mixing motor (3) is installed at the middle position of the bottom of the heating tank (1), a mixing shaft (4) is fixedly installed at the end of the power output shaft of the mixing motor (3), the top end of the mixing shaft (4) movably passes through the top of the inner cavity of the heating tank (1), a plurality of mixing blades (5) are fixedly sleeved on the outer periphery of the mixing shaft (4) near the bottom end, a material spreading trough (9) is fixedly sleeved on the outer periphery of the mixing shaft (4) near the top end, a cleaning component (7) is arranged near the middle position of the inner cavity of the heating tank (1), and a dispersion component (6) is arranged above the inner cavity of the material spreading trough (9); The dispersion assembly (6) comprises a conical block (61) mounted on both sides of the rectangular opening inner cavity and a reciprocating screw (62) rotatably connected to the bottom of the conical block (61); the bottom end of the reciprocating screw (62) is fixedly connected to the top end of the mixing shaft (4); a screw nut (63) is movably sleeved near the middle position of the outer periphery of the reciprocating screw (62); hinged rods (64) are hingedly connected at the front and rear sides of the screw nut (63); a guide plate (65) is hingedly connected at the end of the hinged rod (64) away from the conical block (61); and the guide plate (65) is movably connected to the conical block (61).

2. The alumina red mud reduction device according to claim 1, characterized in that: Guide blocks (631) are fixedly mounted on both sides of the screw nut (63), and guide rods (632) are movably penetrated through the tops of the guide blocks (631), and the tops of the guide rods (632) are fixedly connected to the conical blocks (61).

3. The alumina red mud reduction device according to claim 1, characterized in that: Two crushing rollers (21) are rotatably connected to the other side of the inner cavity of the feed box (2), one end of each crushing roller (21) is movable through one side of the inner cavity of the feed box (2), and a driving gear (22) is meshed with the outer periphery of the crushing roller (21) near one end, and the driving gears (22) are meshed with each other. A crushing motor (23) is fixedly installed at the end of the crushing roller (21) on the front side, and an L-shaped plate (24) is fixedly installed on one side of the crushing motor (23), and the other side of the L-shaped plate (24) is fixedly connected to the feed box (2).

4. The alumina red mud reduction device according to claim 1, characterized in that: The cleaning assembly (7) comprises a fixing plate (71) fixedly mounted on the rear side of the inner cavity of the heating tank (1) near the middle position and a compression telescopic rod (72) fixedly mounted on the top of the fixing plate (71) near the front and rear sides, a cleaning plate (74) being fixedly mounted on the top of the compression telescopic rod (72), and the top of the cleaning plate (74) and the material spreading trough (9) are arranged to fit each other, a compression spring (73) is movably sleeved on the outer periphery of the compression telescopic rod (72), and the top and bottom ends of the compression spring (73) are fixedly connected to the cleaning plate (74) and the fixing plate (71) respectively.

5. The alumina red mud reduction device according to claim 1, characterized in that: The protection component (8) comprises a cross bar (81) movably penetrating the rear side of the inner cavity of the heating tank (1) near the middle position, a transmission rod (82) is arranged on the top of the cross bar (81), the front end of the transmission rod (82) is rotatably connected to the rear side of the feed box (2), a cam (83) is fixedly sleeved on the outer periphery of the transmission rod (82) near the middle position, a sliding plate (84) is arranged on one side of the cam (83), and the front side of the sliding plate (84) is slidably connected to the feed box (2), a rack plate (85) is fixedly installed on one side of the sliding plate (84), a rotating gear (86) is meshed at the top of the rack plate (85) near one side, a transmission gear (87) is meshed at the top of the rotating gear (86), and a sealing plate (88) is arranged on the top of the feed box (2).

6. The alumina red mud reduction device according to claim 5, characterized in that: A U-shaped block (881) is fixedly mounted on both sides of the sealing plate (88) close to the opposite side, a threaded sleeve (882) is fixedly mounted on one side of the U-shaped block (881), a threaded rod (883) is threadedly penetrated through the inner cavity of the threaded sleeve (882), a hand-cranked wheel is fixedly mounted at the rear end of the threaded rod (883) on the other side, and is fixedly connected to the transmission gear (87) at the rear end of the outer periphery of the threaded rod (883) on one side.

7. The alumina red mud reduction device according to claim 5, characterized in that: A driven bevel gear (811) is fixedly mounted on the front end of the cross bar (81), a driving bevel gear (812) is meshed with the front side of the driven bevel gear (811), the driving bevel gear (812) is fixedly sleeved on the outer periphery of the mixing shaft (4), a groove wheel A is fixedly sleeved on the rear ends of the cross bar (81) and the transmission rod (82), and a transmission belt A (813) is sleeved between the groove wheels A; a support plate (821) is rotatably connected to the outer periphery of the transmission rod (82) near the middle position, and the bottom of the support plate (821) is fixedly connected to the heating tank (1).

8. The alumina red mud reduction device according to claim 6, characterized in that: The bottom of the threaded sleeve (882) is fixedly installed with a limit block (8821), and the inner cavity of the limit block (8821) is movably penetrated by the limit rod (8822); the top of the feed box (2) is fixedly installed with a mounting block (8831) near the four sides, the front ends of the threaded rod (883) are rotatably connected to the rear sides of adjacent mounting blocks (8831), and the rear ends of the threaded rod (883) are movably penetrated by the rear sides of adjacent mounting blocks (8831), and the outer periphery of the threaded rod (883) is fixedly sleeved with a groove wheel B near the rear end, and a transmission belt B (8832) is sleeved between the groove wheels B.

9. The alumina red mud reduction device according to claim 5, characterized in that: A reset telescopic rod (841) is fixedly mounted on one side of the sliding plate (84), a connecting block (843) is fixedly mounted on the end of the reset telescopic rod (841), and the other side of the connecting block (843) is fixedly connected to the feed box (2), a reset spring (842) is provided on the outer peripheral movable sleeve of the reset telescopic rod (841), and the two ends of the reset spring (842) are respectively fixedly connected to the sliding plate (84) and the connecting block (843).

Images