Efficient bauxite drying device
By introducing a heat recovery mechanism into the bauxite drying device, the recovered heat is transferred to the incoming air for preheating using a heat exchanger, which solves the problem of low heat utilization rate of existing equipment and achieves efficient utilization of thermal energy.
Patent Information
- Application Number
- CN202520257329.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing bauxite drying equipment has low heat utilization rate and serious heat loss, resulting in wasted heat energy.
A heat recovery mechanism is adopted to recover the heat of the hot air blown out of the device through a heat exchanger, and the recovered heat is transferred to the air entering the device for preheating, thereby improving the thermal energy utilization rate.
It effectively reduces heat loss, improves heat energy utilization, and enhances the drying efficiency of bauxite.
Smart Images
Figure CN223726773U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bauxite processing technical field, concretely is a kind of bauxite efficient drying device. BACKGROUND
[0002] Bauxite is a kind of inorganic compound consisting of aluminum, alum stone bauxite acid and hydrate, and is a soil-like mineral rich in aluminum oxide. Bauxite is widely used in industrial aluminum smelting, refractory materials, foundry industry, and other industries such as water treatment, papermaking, leather making, etc. The bauxite mined needs to be processed through crushing, grinding, pickling, crystallization, washing, baking, etc. Usually, drying equipment is used to bake and process bauxite.
[0003] The existing bauxite drying equipment stirs bauxite, uses a heating assembly to bake bauxite, and simultaneously accelerates the air flow speed by blowing air with a fan, thereby reducing the moisture content of bauxite.
[0004] When the existing bauxite drying device bakes bauxite, hot air will flow out of the air outlet along with the airflow after blowing air on bauxite, which will lose part of the heat, and the heat utilization rate is low. Therefore, we propose a bauxite efficient drying device. SUMMARY
[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a bauxite efficient drying device. The heat recovery mechanism recovers the hot air blown out of the bauxite efficient drying device, the heat exchanger transfers the recovered heat to the air entering the bauxite efficient drying device, thereby preheating the entering air, effectively reducing heat loss, and improving the heat utilization rate. The problems in the background art can be effectively solved.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a bauxite efficient drying device, comprising a rack, a rotating drum is rotatably connected inside the rack, an air outlet is formed on the left surface of the rotating drum, a fixed block is fixedly connected to the right surface of the rack, the left surface of the fixed block is rotatably connected to the right surface of the rotating drum, an air inlet is formed on the right surface of the fixed block, evenly distributed electric heating wires are fixedly connected inside the rack, and a heat recovery mechanism is further included.
[0007] The heat recovery mechanism comprises an air inlet pipe, a heat exchanger and an air outlet pipe, the air inlet pipe is fixedly connected to the right side of the air inlet, the air outlet pipe is rotatably connected to the left side of the air outlet, the upper surface of the rack is fixedly connected with the heat exchanger, the left end of the air inlet pipe is communicated with the cold air outlet of the heat exchanger, the right end of the air outlet pipe is communicated with the hot air inlet of the heat exchanger, the overheat recovery mechanism recovers the hot air blown out of the bauxite high-efficiency drying device, the heat exchanger transmits the recovered heat to the air entering the bauxite high-efficiency drying device, thereby preheating the entering air, effectively reducing heat loss and improving heat energy utilization rate.
[0008] Further, the left surface of the rack is fixedly connected with a single-chip microcomputer, the input end of the single-chip microcomputer is electrically connected with an external power supply, and the input end of the electric heating wire is electrically connected with the output end of the single-chip microcomputer.
[0009] Further, the inside of the rotating drum is fixedly connected with a spiral blade, and the left side of the outer surface of the rotating drum is fixedly connected with an external gear ring, so that the bauxite in the rotating drum moves along with the rotation of the rotating drum.
[0010] Further, the left surface of the rack is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a gear at the right end, the gear is meshingly connected with the external gear ring, the input end of the motor is electrically connected with the output end of the single-chip microcomputer, and a driving force is provided to rotate the rotating drum.
[0011] Further, the upper side of the fixed block is fixedly connected with an inlet, the lower side of the fixed block is fixedly connected with an outlet, the inside of the fixed block is fixedly connected with a baffle, and the feeding and discharging of materials are facilitated.
[0012] Further, the inside of the fixed block is fixedly connected with a fan at the right side, the inside of the air inlet is fixedly connected with a filter screen one, the inside of the air outlet is fixedly connected with a filter screen two, and the input end of the fan is electrically connected with the output end of the single-chip microcomputer, so as to improve the air flow rate and avoid material leakage and external impurities entering the rotating drum.
[0013] Further, the right surface of the rack is fixedly connected with front and rear symmetrically distributed mounting frames, the inside of the mounting frames is rotatably connected with pulleys, the pulleys are slidably connected with the right side of the outer surface of the rotating drum, and the friction between the rotating drum and the rack during rotation is shared.
[0014] Compared with the prior art, the bauxite high-efficiency drying device has the following advantages:
[0015] The heat recovery mechanism recovers the hot air blown out of the bauxite high-efficiency drying device, the heat exchanger transmits the recovered heat to the air entering the bauxite high-efficiency drying device, thereby preheating the entering air, effectively reducing heat loss and improving heat energy utilization rate. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the structure schematic view of the utility model;
[0017] Fig. 2 It is the structure schematic view of the utility model section view;
[0018] Fig. 3 It is the structure schematic view of the utility model rear view.
[0019] In the drawing: 1 frame, 2 single-chip microcomputer, 3 feed inlet, 4 discharge port, 5 filter screen one, 6 heat recovery mechanism, 61 air inlet pipeline, 62 heat exchanger, 63 air outlet pipeline, 7 external tooth ring, 8 fan, 9 baffle, 10 spiral blade, 11 electric heating wire, 12 fixed block, 13 gear, 14 motor, 15 filter screen two, 16 rotating drum, 17 pulley. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0021] Please refer to Figs. 1-3The embodiment provides a technical scheme: an efficient bauxite drying device, which comprises a rack 1, a rotating drum 16 rotatably connected to the inside of the rack 1, an air outlet formed in the left surface of the rotating drum 16, a spiral blade 10 fixedly connected to the inside of the rotating drum 16, a fixed block 12 fixedly connected to the right surface of the rack 1, an inlet 3 fixedly connected to the upper side of the fixed block 12, an outlet 4 fixedly connected to the lower side of the fixed block 12, a baffle 9 fixedly connected to the inside of the fixed block 12, bauxite is injected into the fixed block 12 through the inlet 3, enters the right side of the inside of the rotating drum 16 through the inclined surface on the upper side of the baffle 9, the left surface of the fixed block 12 is rotatably connected to the right surface of the rotating drum 16, an air inlet is formed in the right surface of the fixed block 12, uniformly distributed electric heating wires 11 are fixedly connected to the inside of the rack 1, a single-chip microcomputer 2 is fixedly connected to the left surface of the rack 1, the input end of the single-chip microcomputer 2 is electrically connected to an external power supply, the input end of the electric heating wires 11 is electrically connected to the output end of the single-chip microcomputer 2, the single-chip microcomputer 2 is operated, the electric heating wires 11 are started, the inside of the rack 1 is heated, the left side of the outer surface of the rotating drum 16 is fixedly connected to an outer gear ring 7, a motor 14 is fixedly connected to the left surface of the rack 1, the right end of the output shaft of the motor 14 is fixedly connected to a gear 13, the gear 13 is meshingly connected with the outer gear ring 7, the input end of the motor 14 is electrically connected to the output end of the single-chip microcomputer 2, the single-chip microcomputer 2 is operated, the motor 14 is started, the output shaft of the motor 14 rotates to drive the gear 13 to rotate, the outer gear ring 7 rotates to drive the rotating drum 16 to rotate, the bauxite in the rotating drum 16 is driven to rotate and slowly move to the left in the process of rotating in the rotating drum 16, after drying, the single-chip microcomputer 2 is operated, the motor 14 is reversed to reverse the gear 13, the outer gear ring 7 is reversed to reverse the rotating drum 16, so that the bauxite in the inside of the rotating drum 16 moves to the right and is finally discharged from the outlet 4, a fan 8 is fixedly connected to the right side of the inside of the fixed block 12, a filter screen one 5 is fixedly connected to the inside of the air inlet, a filter screen two 15 is fixedly connected to the inside of the air outlet, the input end of the fan 8 is electrically connected to the output end of the single-chip microcomputer 2, front and back symmetrical mounting racks are fixedly connected to the right surface of the rack 1, pulleys 17 are rotatably connected to the inside of the mounting racks and slidably connected with the right side of the outer surface of the rotating drum 16, and a heat recovery mechanism 6 is further included.
[0022] The heat recovery mechanism 6 comprises an air inlet pipe 61, a heat exchanger 62 and an air outlet pipe 63, the air inlet pipe 61 is fixedly connected to the right side of the air inlet, the air outlet pipe 63 is rotatably connected to the left side of the air outlet, the upper surface of the rack 1 is fixedly connected with the heat exchanger 62, the left end of the air inlet pipe 61 is communicated with the cold air outlet of the heat exchanger 62, the right end of the air outlet pipe 63 is communicated with the hot air inlet of the heat exchanger 62, the single-chip microcomputer 2 is operated, the fan 8 is started, the external air enters into the heat exchanger 62 through the cold air inlet, flows into the rotary drum 16 through the cold air outlet and the air inlet pipe 61, the external air is heated in the internal part of the rotary drum 16 and is blown to the bauxite, so that the air flow rate in the internal part of the rotary drum 16 is accelerated, the water evaporation speed in the internal part of the bauxite is accelerated, then the external air flows into the air outlet pipe 63 through the air outlet, is discharged from the hot air outlet of the heat exchanger 62 through the hot air inlet of the heat exchanger 62, meanwhile, the heat exchanger 62 recovers the heat in the discharged air, preheats the external air entering into the internal part of the heat exchanger 62, so that the heat utilization rate is improved.
[0023] The working principle of the bauxite efficient drying device is as follows: when the bauxite efficient drying device is used for drying bauxite, the bauxite is injected into the fixed block 12 through the feeding port 3, enters the internal right side of the rotary drum 16 through the inclined surface on the upper side of the baffle 9, the single-chip microcomputer 2 is operated, the electric heating wire 11 is started, the electric heating wire 11 heats the internal part of the rack 1, the single-chip microcomputer 2 is operated, the motor 14 is started, the output shaft of the motor 14 rotates to drive the gear 13 to rotate, the outer gear ring 7 rotates to drive the rotary drum 16 to rotate, the bauxite in the internal part of the rotary drum 16 is driven to rotate, is affected by the spiral blade 10, and is slowly moved to the left in the process of rotating in the internal part of the rotary drum 16, the single-chip microcomputer 2 is operated, the fan 8 is started, the external air enters into the heat exchanger 62 through the cold air inlet, flows into the rotary drum 16 through the cold air outlet and the air inlet pipe 61, the external air is heated in the internal part of the rotary drum 16 and is blown to the bauxite, so that the air flow rate in the internal part of the rotary drum 16 is accelerated, the water evaporation speed in the internal part of the bauxite is accelerated, then the external air flows into the air outlet pipe 63 through the air outlet, is discharged from the hot air outlet of the heat exchanger 62 through the hot air inlet of the heat exchanger 62, meanwhile, the heat exchanger 62 recovers the heat in the discharged air, preheats the external air entering into the internal part of the heat exchanger 62, so that the heat utilization rate is improved, after drying is completed, the single-chip microcomputer 2 is operated, the motor 14 is reversed to drive the gear 13 to reverse, the outer gear ring 7 is reversed to drive the rotary drum 16 to reverse, so that the bauxite in the internal part of the rotary drum 16 moves to the right, and finally is discharged from the discharge port 4.
[0024] It is worth noting that the single-chip microcomputer 2 disclosed in the above embodiment is selected from MCULQFP10, the fan 8 is selected from DPT25-76B, and the motor 14 is selected from YS100L-2. The single-chip microcomputer 2 controls the fan 8 and the motor 14 to work by using the method commonly used in the prior art.
[0025] The above is only an embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection range of the present application.
Claims
1. A high-efficiency bauxite drying device, comprising a frame (1), wherein a rotating drum (16) is rotatably connected inside the frame (1), an air outlet is provided on the left surface of the rotating drum (16), a fixing block (12) is fixedly connected to the right surface of the frame (1), the left surface of the fixing block (12) is rotatably connected to the right surface of the rotating drum (16), an air inlet is provided on the right surface of the fixing block (12), and uniformly distributed heating wires (11) are fixedly connected inside the frame (1), characterized in that: It also includes a heat recovery mechanism (6); Heat recovery mechanism (6): It includes an air inlet pipe (61), a heat exchanger (62) and an air outlet pipe (63). The air inlet pipe (61) is fixedly connected to the right side of the air inlet, and the air outlet pipe (63) is rotatably connected to the left side of the air outlet. The heat exchanger (62) is fixedly connected to the upper surface of the frame (1). The left end of the air inlet pipe (61) is connected to the cold air outlet of the heat exchanger (62), and the right end of the air outlet pipe (63) is connected to the hot air inlet of the heat exchanger (62).
2. The high-efficiency bauxite drying device according to claim 1, characterized in that: A microcontroller (2) is fixedly connected to the left surface of the frame (1). The input end of the microcontroller (2) is electrically connected to an external power source, and the input end of the heating wire (11) is electrically connected to the output end of the microcontroller (2).
3. The high-efficiency bauxite drying device according to claim 1, characterized in that: The rotating drum (16) has a helical blade (10) fixedly connected inside.
4. The high-efficiency bauxite drying device according to claim 2, characterized in that: An external gear ring (7) is fixedly connected to the left side of the outer surface of the rotating drum (16), and a motor (14) is fixedly connected to the left surface of the frame (1). A gear (13) is fixedly connected to the right end of the output shaft of the motor (14). The gear (13) meshes with the external gear ring (7), and the input end of the motor (14) is electrically connected to the output end of the microcontroller (2).
5. The high-efficiency bauxite drying device according to claim 1, characterized in that: The upper side of the fixed block (12) is fixedly connected to the inlet (3), the lower side of the fixed block (12) is fixedly connected to the outlet (4), and the inside of the fixed block (12) is fixedly connected to the baffle (9).
6. The high-efficiency bauxite drying device according to claim 2, characterized in that: A fan (8) is fixedly connected to the inside right side of the fixed block (12), a filter screen one (5) is fixedly connected to the inside of the air inlet, a filter screen two (15) is fixedly connected to the inside of the air outlet, and the input end of the fan (8) is electrically connected to the output end of the microcontroller (2).
7. The high-efficiency bauxite drying device according to claim 1, characterized in that: The right surface of the frame (1) is fixedly connected with mounting brackets that are symmetrically distributed front and back. Each mounting bracket is rotatably connected with a pulley (17), and the pulleys are slidably connected to the right side of the outer surface of the rotating drum (16).