Red mud comprehensive treatment equipment

Abstract

The invention provides red mud comprehensive treatment equipment, and relates to the technical field of red mud treatment, the red mud comprehensive treatment equipment comprises a dewatering bin, the top of the dewatering bin is connected with an exhaust channel; a through groove is formed in the upper portion of the front side of the dewatering bin, and a converging channel is fixedly arranged in the through groove. A column of neutralization channels are integrally arranged on the front side of the convergence channel, and a bearing channel is fixedly arranged at the front end of each neutralization channel; an output pipe is fixedly arranged on the front side of the bottom of the conveyor, and the output pipe is fixedly connected to the front side of the top of the neutralization channel; through cooperation of the three heating plate bins arranged in a staggered and inclined mode, the pushing plates attached to the outer surfaces of the heating plate bins and the exhaust fans in the bins, the efficient and continuous dehydration function of the red mud is provided, and the red mud is driven by the conveying belt and the pushing plates to be conveyed and heated step by step along the surfaces of the heating plate bins; the dehydration path and the heating contact time of the red mud are prolonged, and the dehydration effect and the overall treatment efficiency of the red mud are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of red mud treatment technology, and in particular to a comprehensive red mud treatment device. Background Technology

[0002] Red mud is an industrial solid waste discharged during the extraction of alumina in the aluminum industry. It is an alkaline solid waste with a pH value ranging from 9.5 to 13.0, belonging to a strongly alkaline substance. Its strong alkalinity mainly comes from the soluble alkali and chemically bound alkali remaining in the production process. It is very harmful to the environment and cannot be discharged directly. It can be dehydrated and made into brick-like materials to make building materials.

[0003] The current processing equipment mainly dehydrates the red mud through integrated evaporation, which is not conducive to continuous dehydration. It also shapes the red mud into easily transportable forms and lacks an automatic neutralization function that can be selected for use. Summary of the Invention

[0004] In view of the above, the present invention addresses the shortcomings of the prior art by providing a comprehensive red mud treatment device.

[0005] This invention provides a comprehensive red mud treatment device, specifically comprising: a dewatering chamber, the top of which is connected to an exhaust channel; a through groove is formed on the upper front side of the dewatering chamber, and a converging channel is fixedly arranged within the through groove; a row of neutralizing channels is integrally arranged on the front side of the converging channel, and a receiving channel is fixedly arranged at the front end of the neutralizing channel; a conveyor, the bottom front side of which is fixedly arranged with an output pipe, which is fixedly connected to the top front side of the neutralizing channel; and a lifting channel, the rear upper side of which is integrally arranged with a downward-turning connecting channel, which is fixedly connected to the receiving channel. The top of the channel; inside the dehydration chamber, three sets of staggered and inclined heating plate chambers are fixedly installed, and the lower part of each heating plate chamber is fixedly installed with a cotton-rock heat insulation board; resistance heaters are fixedly mounted in the upper middle part of each heating plate chamber; pulleys are rotatably installed at both sides of the heating plate chamber inside the dehydration chamber, and conveyor belts are rotatably installed outside the two sets of pulleys on the same side, and push plates are fixedly installed at equal intervals on the outside of the conveyor belts on both sides; the middle of the exterior of the heating plate chamber is recessed, and the push plates fit against the exterior of the heating plate chamber; an output channel is fixedly connected to the bottom rear side of the dehydration chamber.

[0006] Optionally, an air inlet is provided on the lower rear side of the dehydration chamber; the exhaust channel turns backward and an exhaust fan is fixedly connected in the exhaust channel; anti-splash plates are fixedly installed on both the front and rear sides of the interior of the dehydration chamber, and the anti-splash plates are located at the transition position between the upper and lower heating plate chambers.

[0007] Optionally, a downward-turning spreading channel is fixedly connected to the rear side of the confluence channel via a pipe, with the bottom of the spreading channel located in front of and above the uppermost heating silo; a moisture content sensor is also fixedly installed through the pipe of the spreading channel; a stirrer is rotatably installed in each neutralization channel; a linkage shaft A is rotatably installed in front of the receiving channel, and a drive motor A is fixedly installed on the left side of the receiving channel, with the shaft end of the drive motor A fixedly connected to the linkage shaft A; the linkage shaft A is connected to each group of stirrers via bevel gear transmission; a linkage shaft B is rotatably mounted in the upper front position between the confluence channel and the receiving channel, and a drive motor B is fixedly installed in the left front side between the confluence channel and the receiving channel, with the drive motor B being drively connected to the linkage shaft B.

[0008] Optionally, an input pipe is fixedly installed on the top front side of the conveyor, and a trapezoidal bin is fixedly connected to the top of each input pipe; a switching disc is rotatably installed inside the conveyor, and a control shaft is fixedly installed in the middle of the top of each switching disc, and the control shaft is connected to the linkage shaft B through bevel gear transmission; six sets of feeding channels are arranged around each switching disc, and the lower part of each feeding channel has a cone-shaped structure; a semi-annular air chamber is integrally installed on the top front side of the conveyor, and an integrated air pipe is connected to the top of the semi-annular air chamber, with a solenoid valve fixedly connected to one end of the integrated air pipe, and an air compressor connected to the other end of the solenoid valve.

[0009] Optionally, the lifting channel is integrally provided with an upward-turning channel at the lower front side, and a filling hopper is fixedly provided at the top of the channel; a spiral elevator is rotatably provided inside the lifting channel, and a lifting motor is fixedly provided at the top of the lifting channel, with the shaft end of the lifting motor being drivenly connected to the spiral elevator.

[0010] Optionally, a linkage gear is rotatably provided on the right side of the dehydration chamber; a driven gear is fixedly provided at the right end of the shaft of the middle and rear pulley, which extends out of the right side of the dehydration chamber, and the driven gear meshes with the linkage gear; the right ends of the shafts of the upper rear and lower rear pulleys extend out of the right end of the dehydration chamber and are connected by synchronous belt drive, and the right end of the shaft of the upper rear pulley is also connected by synchronous belt drive to the shaft of the linkage gear.

[0011] Optionally, a synchronous motor is fixedly installed on the left side of the dehydration chamber, and the synchronous motor is connected to the left end of the shaft of the two sets of pulleys at the rear and upper.

[0012] Optionally, three sets of spiral propellers are rotatably arranged inside the lower part of the output channel, and a propulsion motor is fixedly arranged on the left side of the output channel. The propulsion motor and the left end of the rotating shaft of the three sets of spiral propellers are connected by a gear set for transmission, and the three sets of spiral propellers can rotate at the same speed and in the same direction. A compression channel is fixedly connected to the right end of the output channel, and the right end of the compression channel contracts downward.

[0013] Optionally, an output frame is arranged at the right outlet of the extrusion channel, and a bearing roller is rotatably arranged above the output frame, with the top of the bearing roller aligned with the bottom surface of the outlet of the extrusion channel; a buckle is fixedly arranged above the output frame, and an electric cylinder is fixedly arranged at the top of the output frame, with a cutter fixedly arranged through the extension end of the electric cylinder passing through the output frame.

[0014] The beneficial effects are as follows: This invention provides efficient and continuous dehydration of red mud through the coordinated operation of three sets of staggered and inclined heating plate bins, push plates that fit against the surface of the heating plate bins, and exhaust fans inside the bins. The red mud is gradually transported and heated along the surface of the heating plate bins by the conveyor belt and push plates, which extends the dehydration path and heating contact time of the red mud. At the same time, the exhaust fans accelerate the discharge of water vapor inside the bins, solving the problems of traditional integrated evaporation equipment that is difficult to operate continuously and has low dehydration efficiency, and greatly improving the red mud dehydration effect and overall processing efficiency.

[0015] This invention provides an optional automatic red mud neutralization function through the linkage design of a moisture content sensor, a quantitative feeding structure of a conveyor, and a stirrer in the neutralization channel. The moisture content sensor can monitor the moisture status of the red mud in real time. The conveyor accurately adds acidic neutralizing agent through the quantitative feeding structure of the switching plate. Then, the stirrer fully mixes the neutralizing agent with the red mud to achieve uniform mixing, effectively reducing the strong alkalinity of the red mud and improving the adaptability of the red mud for subsequent resource utilization.

[0016] This invention provides an integrated red mud forming function by integrating a spiral propeller in the output channel, an extrusion channel, and an electric cylinder-driven cutter on the output frame. After dehydration, the red mud is pushed into the extrusion channel by the spiral propeller and extruded into a regular plate-like structure. Then, the cutter driven by the electric cylinder precisely cuts it into segments as needed. No additional forming equipment is required, which simplifies the overall process of red mud processing and reduces equipment investment and labor operation costs. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the present invention is shown; Figure 2 A schematic diagram of the isometric structure of an embodiment of the present invention is shown; Figure 3 A three-dimensional cross-sectional view of an embodiment of the present invention is shown; Figure 4 An embodiment of the present invention is shown. Figure 3 A top-view structural diagram; Figure 5 A side sectional view of the dehydration chamber in an embodiment of the present invention is shown. Figure 6 A three-dimensional structural schematic diagram of the merging channel in an embodiment of the present invention is shown; Figure 7 A three-dimensional cross-sectional view of the conveyor in an embodiment of the present invention is shown; Figure 8 A three-dimensional structural schematic diagram of the heating plate compartment in an embodiment of the present invention is shown; Figure 9 A schematic diagram of the disassembled structure of the heating plate compartment in an embodiment of the present invention is shown.

[0018] List of reference numerals in the attached diagram: 1. Dehydration chamber; 101. Air inlet; 102. Exhaust channel; 103. Exhaust fan; 104. Splash shield; 2. Convergence channel; 201. Spreading channel; 202. Moisture content sensor; 203. Neutralization channel; 204. Receiving channel; 205. Agitator; 206. Linkage shaft A; 207. Drive motor A; 208. Linkage shaft B; 209. Drive motor B; 3. Conveyor; 301. Input pipe; 302. Trapezoidal chamber; 303. Output pipe; 304. Switching plate; 305. Control shaft; 306. Feed chute; 307. Semi-annular air chamber; 30 8. Integrated air pipe; 309. Solenoid valve; 4. Lifting channel; 401. Filling hopper; 402. Connecting channel; 403. Screw elevator; 404. Lifting motor; 5. Heating silo; 501. Insulation plate; 502. Heater; 6. Pulley; 601. Conveyor belt; 602. Push plate; 603. Driven gear; 7. Output channel; 701. Screw propeller; 702. Propulsion motor; 703. Extrusion channel; 8. Output frame; 801. Bearing roller; 802. Buckle; 803. Electric cylinder; 804. Cutter; 9. Linkage gear; 10. Synchronous motor. Detailed Implementation

[0019] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0020] Example 1: Please refer to the accompanying drawings in the instruction manual. Figures 1 to 9 As shown: This invention proposes a comprehensive red mud treatment device, comprising: a dewatering chamber 1, with an exhaust channel 102 connected to the top of the dewatering chamber 1; a through groove is opened on the upper front side of the dewatering chamber 1, and a converging channel 2 is fixedly installed in the through groove; a row of neutralizing channels 203 is integrally installed on the front side of the converging channel 2, and a receiving channel 204 is fixedly installed at the front end of the neutralizing channel 203; a conveyor 3, with an output pipe 303 fixedly installed on the front bottom side of the conveyor 3, and the output pipe 303 is fixedly connected to the front top of the neutralizing channel 203; and a lifting channel 4, with a downward-turning connecting channel 402 integrally installed on the upper rear side of the lifting channel 4, and the connecting channel 402 is fixedly connected to the receiving channel. The top of 204; inside the dehydration chamber 1, three sets of staggered and inclined heating plate chambers 5 are fixedly installed, and the lower part of each heating plate chamber 5 is fixedly installed with a cotton rock heat insulation plate 501; resistance heaters 502 are fixedly mounted in the upper middle part of each heating plate chamber 5; pulleys 6 are rotatably installed at the two edges of the heating plate chamber 5 inside the dehydration chamber 1, and conveyor belts 601 are rotatably installed on the outside of the two sets of pulleys 6 on the same side, and push plates 602 are fixedly installed at equal intervals on the outside of the two conveyor belts 601; the middle of the exterior of the heating plate chamber 5 is recessed, and the push plates 602 are attached to the exterior of the heating plate chamber 5; an output channel 7 is fixedly connected to the rear bottom of the dehydration chamber 1.

[0021] The dehydration chamber 1 has an air inlet 101 at the lower rear side; the exhaust channel 102 turns backward and is fixedly connected to an exhaust fan 103; anti-splash plates 104 are fixedly installed on both the front and rear sides of the interior of the dehydration chamber 1, and the anti-splash plates 104 are located at the transition position between the upper and lower parts of the three heating plate chambers 5.

[0022] The confluence channel 2 has a downward-turning spreading channel 201 fixedly connected to its rear side via a pipe. The bottom of the spreading channel 201 is located above and in front of the uppermost heating plate 5. A moisture content sensor 202 is also fixedly installed through the pipe of the spreading channel 201. A stirrer 205 is rotatably installed in each neutralization channel 203. A linkage shaft A206 is rotatably installed on the front side of the receiving channel 204. A drive motor A207 is fixedly installed on the left side of the receiving channel 204. The shaft end of the drive motor A207 is fixedly connected to the linkage shaft A206. The linkage shaft A206 is connected to each set of stirrers 205 via bevel gear transmission. A linkage shaft B208 is rotatably mounted at the upper front position between the confluence channel 2 and the receiving channel 204. A drive motor B209 is fixedly installed on the left front side between the confluence channel 2 and the receiving channel 204. The drive motor B209 is connected to the linkage shaft B208 via transmission.

[0023] The conveyor 3 has an input pipe 301 fixedly installed on the top front side, and a trapezoidal chamber 302 is fixedly connected to the top of the input pipe 301. The conveyor 3 has a switching disc 304 rotatably installed inside, and a control shaft 305 is fixedly installed in the middle of the top of the switching disc 304. The control shaft 305 is connected to the linkage shaft B208 through bevel gear transmission. The switching disc 304 has six sets of feeding channels 306 arranged around it. The lower part of the feeding channel 306 is a cone-shaped structure. The conveyor 3 has a semi-annular air chamber 307 integrally installed on the top front side. An integrated air pipe 308 is connected to the top of the semi-annular air chamber 307. One end of the integrated air pipe 308 is fixedly connected to a solenoid valve 309, and the other end of the solenoid valve 309 is connected to an air compressor.

[0024] The lifting channel 4 has an integrated upward-turning channel at the lower front side, and a filling hopper 401 is fixedly installed at the top of the channel. A spiral elevator 403 is rotatably installed inside the lifting channel 4, and a lifting motor 404 is fixedly installed at the top of the lifting channel 4. The shaft end of the lifting motor 404 is connected to the spiral elevator 403 for transmission.

[0025] The dehydration chamber 1 is rotatably equipped with a linkage gear 9 on its right side; the right end of the shaft of the middle rear pulley 6 extends out of the right side of the dehydration chamber 1 and is fixedly equipped with a driven gear 603, which meshes with the linkage gear 9; the right ends of the shafts of the upper rear and lower rear pulleys 6 extend out of the right end of the dehydration chamber 1 and are connected by synchronous belt drive, and the right end of the shaft of the upper rear pulley 6 is also connected by synchronous belt drive to the shaft of the linkage gear 9.

[0026] Among them, a synchronous motor 10 is fixedly installed on the left side of the dehydration chamber 1, and the synchronous motor 10 is connected to the left end of the shaft of the two sets of pulleys 6 at the rear and upper.

[0027] The output channel 7 has three sets of spiral propellers 701 rotatably mounted inside the lower part. A propulsion motor 702 is fixedly mounted on the left side of the output channel 7. The propulsion motor 702 is connected to the left end of the shaft of the three sets of spiral propellers 701 by a gear set. The three sets of spiral propellers 701 can rotate at the same speed and in the same direction. A compression channel 703 is fixedly connected to the right end of the output channel 7. The right end of the compression channel 703 contracts downward.

[0028] An output frame 8 is arranged at the right outlet of the extrusion channel 703. A bearing roller 801 is rotatably arranged above the output frame 8. The top of the bearing roller 801 is aligned with the bottom surface of the outlet of the extrusion channel 703. A buckle 802 is fixedly arranged above the output frame 8. An electric cylinder 803 is fixedly arranged at the top of the output frame 8. A cutter 804 is fixedly arranged through the extension end of the electric cylinder 803 through the output frame 8.

[0029] The specific usage and function of this embodiment: In this invention, red mud is poured in from the filling hopper 401, the lifting motor 404 is started to drive the screw elevator 403 to rotate, and the red mud is conveyed upward. After the red mud is lifted, it is input into the connecting channel 402 and discharged into the receiving channel 204. Red mud passes through neutralization channel 203 and is discharged from spreading channel 201. The moisture content of red mud can be monitored by moisture content sensor 202. During this process, drive motor A207 is started to drive linkage shaft A206 to rotate. Linkage shaft A206 drives stirrer 205 to rotate through bevel gear, which can stir the red mud that has passed through neutralization channel 203. The heater 502 is powered on and heated, and the heater 502 heats the area above the heating plate bin 5 (the heating temperature is adjusted as needed). When the red mud is discharged from the spreading channel 201, it falls on the area above the heating plate bin 5 and continues to be heated to evaporate the moisture. Start the synchronous motor 10. Each set of pulleys 6 and conveyor belt 601 are driven by the synchronous belt, linkage gear 9 and driven gear 603 to rotate synchronously. The conveyor belt 601 drives the push plate 602 to move in contact with the outside of the heating plate bin 5, and transports the red mud downward to contact different heating plate bins 5 for heating, and quickly evaporates the water for dehydration. Start the exhaust fan 103 to draw in air through the air inlet 101 and exhaust it through the exhaust channel 102. Connect the exhaust channel 102 to the wastewater treatment equipment to recover, condense and treat the water vapor evaporated from the red mud.

[0030] The final red mud, with a moisture content of less than 20%, falls into output channel 7. The start-up propulsion motor 702 drives the screw propeller 701 to rotate, and the screw propeller 701 transports red mud to the right. The propulsion force feeds the red mud into the extrusion channel 703. After being extruded by the structure of the extrusion channel 703, it is discharged from the right end outlet and falls on the upper part of the carrying roller 801 and is pushed to the right. The extension electric cylinder 803 pushes the cutter 804 downward, which can cut the red mud plate into sections for easy subsequent handling.

[0031] Example 2: Based on Example 1, acidic particles can be pre-filled into the trapezoidal chamber 302, and the acidic particles will naturally fall into the input pipe 301; The drive motor B209 is started, which drives the linkage shaft B208 to rotate. The linkage shaft B208, in conjunction with the bevel gear, drives the control shaft 305 to rotate, which in turn drives the switching disk 304 to rotate continuously. When the feeding channel 306 is aligned with the input pipe 301, acidic particles fall into the feeding channel 306. When the feeding channel 306 moves above the output pipe 303, the acidic particles fall into the neutralization channel 203 and mix with the red mud. Neutralization is achieved through stirring, reducing the alkalinity of the red mud. The alkalinity of the red mud is detected in advance. After inputting the control program, the speed of the drive motor B209 can be adjusted by using the program to control the speed of input acidic substances, thereby adjusting the degree of neutralization.

[0032] Example 3: Based on Example 2, the solenoid valve 309 is opened, and compressed air is generated by the air compressor. The compressed air passes through the integrated air pipe 308 and enters the semi-annular air chamber 307 to continuously accumulate and be pressurized for a short time. When the feeding channel 306 moves above the output pipe 303, the pressure is released and the compressed air is discharged downwards, which helps to discharge acidic particles into the red mud.

Claims

1. A comprehensive red mud treatment equipment, characterized in that, include: Dehydration chamber (1), the top of which is connected to an exhaust channel (102); A through groove is opened on the upper front side of the dehydration chamber (1), and a converging channel (2) is fixedly installed in the through groove; a neutralizing channel (203) is integrally installed on the front side of the converging channel (2), and a receiving channel (204) is fixedly installed at the front end of the neutralizing channel (203); a conveyor (3) is fixedly installed on the front bottom side of the conveyor (3), and the output pipe (303) is fixedly connected to the front top of the neutralizing channel (203); a lifting channel (4) is integrally installed on the upper rear side of the lifting channel (4), and the connecting channel (402) is fixedly connected to the top of the receiving channel (204); three A set of staggered and inclined heating plate silos (5) are provided with a cotton rock insulation plate (501) fixedly installed at the bottom of each heating plate silo (5); a resistance heater (502) is fixedly installed in the upper middle part of each heating plate silo (5); a pulley (6) is rotatably installed at the two sides of the heating plate silo (5) inside the dehydration chamber (1); a conveyor belt (601) is rotatably installed on the outside of the two sets of pulleys (6) on the same side; a pusher plate (602) is fixedly installed at equal intervals on the outside of the two conveyor belts (601); the middle of the outside of the heating plate silo (5) is recessed, and the pusher plate (602) fits against the outer surface of the heating plate silo (5); an output channel (7) is fixedly connected to the bottom rear side of the dehydration chamber (1).

2. The red mud comprehensive treatment equipment as described in claim 1, characterized in that, An air inlet (101) is provided on the lower rear side of the dehydration chamber (1); the exhaust channel (102) turns backward and an exhaust fan (103) is fixedly connected in the exhaust channel (102); anti-splash plates (104) are fixedly installed on the front and rear sides of the interior of the dehydration chamber (1), and the anti-splash plates (104) are located at the transition position between the upper and lower parts of the three sets of heating plate chambers (5).

3. The red mud comprehensive treatment equipment as described in claim 1, characterized in that, The rear side of the confluence channel (2) is fixedly connected to a downward-turning spreading channel (201) via a pipe. The bottom of the spreading channel (201) is located in front of and above the uppermost heating plate silo (5). A moisture content sensor (202) is also fixedly installed through the pipe of the spreading channel (201). A stirrer (205) is rotatably installed in each neutralization channel (203). A linkage shaft A (206) is rotatably installed on the front side of the receiving channel (204), and a drive motor is fixedly installed on the left side of the receiving channel (204). A (207), the shaft end of drive motor A (207) is fixedly connected to linkage shaft A (206); linkage shaft A (206) is connected to each group of stirrers (205) through bevel gear transmission; linkage shaft B (208) is rotatably mounted at the upper front position between the confluence channel (2) and the receiving channel (204), and drive motor B (209) is fixedly mounted on the left front side between the confluence channel (2) and the receiving channel (204), and drive motor B (209) is connected to linkage shaft B (208) through transmission.

4. The red mud comprehensive treatment equipment as described in claim 3, characterized in that, The top front side of the conveyor (3) is fixedly provided with an input pipe (301), and the top of the input pipe (301) is fixedly connected with a trapezoidal chamber (302); the inside of the conveyor (3) is rotatably provided with a switching disk (304), and the top middle of the switching disk (304) is fixedly provided with a control shaft (305), and the control shaft (305) is connected to the linkage shaft B (208) through bevel gear transmission; the switching disk (304) is surrounded by six sets of feeding channels (306), and the lower part of the feeding channel (306) is a cone-shaped structure; the top front side of the conveyor (3) is integrally provided with a semi-annular air chamber (307), and the top of the semi-annular air chamber (307) is connected with an integrated air pipe (308), and one end of the integrated air pipe (308) is fixedly connected with a solenoid valve (309).

5. The red mud comprehensive treatment equipment as described in claim 1, characterized in that, The lifting channel (4) is integrally provided with an upward turning channel at the lower front side, and a filling hopper (401) is fixedly provided at the top of the channel; a spiral elevator (403) is rotatably provided inside the lifting channel (4), and a lifting motor (404) is fixedly provided at the top of the lifting channel (4), with the shaft end of the lifting motor (404) being connected to the spiral elevator (403) for transmission.

6. The red mud comprehensive treatment equipment as described in claim 1, characterized in that, A linkage gear (9) is rotatably installed on the right side of the dehydration chamber (1); a driven gear (603) is fixedly installed on the right end of the shaft of the middle rear pulley (6) through the right side of the dehydration chamber (1), and the driven gear (603) meshes with the linkage gear (9); the right ends of the shafts of the rear upper and rear lower pulleys (6) are connected by synchronous belt drive through the right end of the dehydration chamber (1), and the right end of the shaft of the rear upper pulley (6) is also connected by synchronous belt drive to the shaft of the linkage gear (9).

7. The red mud comprehensive treatment equipment as described in claim 6, characterized in that, A synchronous motor (10) is fixedly installed on the left side of the dehydration chamber (1), and the synchronous motor (10) is connected to the left end of the shaft of the two sets of pulleys (6) at the rear and upper.

8. The red mud comprehensive treatment equipment as described in claim 1, characterized in that, Three sets of spiral propellers (701) are rotatably arranged inside the lower part of the output channel (7). A propulsion motor (702) is fixedly arranged on the left side of the output channel (7). The propulsion motor (702) and the left end of the shaft of the three sets of spiral propellers (701) are connected by a gear set for transmission. The three sets of spiral propellers (701) can rotate at the same speed and in the same direction. A compression channel (703) is fixedly connected to the right end of the output channel (7). The right end of the compression channel (703) contracts downward.

9. The red mud comprehensive treatment equipment as described in claim 8, characterized in that, An output frame (8) is arranged at the right outlet of the extrusion channel (703). A bearing roller (801) is rotatably arranged above the output frame (8). The top of the bearing roller (801) is aligned with the bottom surface of the outlet of the extrusion channel (703). A buckle (802) is fixedly arranged above the output frame (8). An electric cylinder (803) is fixedly arranged at the top of the output frame (8). A cutter (804) is fixedly arranged through the extension end of the electric cylinder (803) through the output frame (8).

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