Waste treatment equipment for aluminum oxide preparation

By designing waste treatment equipment for alumina production and utilizing heating and airflow control technologies, the problems of high moisture content and pollution in red mud have been solved, achieving efficient drying and environmentally friendly treatment.

CN223909930UActive Publication Date: 2026-02-13ANHUI FENGHUA NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520130990.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-13
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

In the alumina production process, red mud has high moisture content, and direct high-temperature drying wastes energy. Furthermore, the alkaline substances in red mud may pollute water sources, and existing technologies are unable to handle it efficiently.

Method used

A waste treatment device for alumina preparation was designed, including components such as a dehumidification chamber, a heating chamber, an air pump, an exhaust trough, and a servo motor. Through heating and airflow control, the device enables the rapid drying and discharge of red mud.

Benefits of technology

This method achieves efficient drying of red mud, reduces energy waste, avoids water pollution, and improves treatment efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses waste treatment equipment for aluminum oxide preparation, and relates to the technical field of industrial waste, in particular to waste treatment equipment for aluminum oxide preparation, which comprises a dehumidification box body, an exhaust groove is supported above the dehumidification box body, and a heating box is supported above the dehumidification box body; a heating pipeline is fixedly sleeved with the heating box, an air pump is supported above the heating box, an inner cavity of the heating box is communicated with an inner cavity of the dehumidification box body, and the output end of the air pump is communicated with the inner cavity of the heating box. An exhaust groove and a heating box are supported on the two sides of the upper portion of a dehumidification box body, hot air can be continuously conveyed into the dehumidification box body through cooperation of a heating pipeline on the inner side of an air pump above the heating box, air can be conveyed outwards through cooperation of exhaust blades in an inner cavity of the exhaust groove and a servo motor, meanwhile, the exhaust speed is controlled, and mutual cooperation is achieved; the air pressure of the inner cavity of the dehumidification box body can be controlled, and moisture can be rapidly discharged through the high-temperature and high-pressure environment.
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Description

TECHNICAL FIELD

[0001] The utility model relates to industrial waste technology field, concretely is a waste treatment equipment of preparation of aluminium oxide. BACKGROUND

[0002] Aluminium oxide is an inorganic substance, chemical formula Al2O3, is a high hardness compound, melting point is 2054 DEG C, boiling point is 2980 DEG C, can ionize ion crystal under high temperature, is often used to make refractory material, industrial aluminium oxide is prepared from bauxite (Al2O3.3H2O) and diaspore, for the high purity requirement Al2O3, generally uses chemical method to prepare. Al2O3 has many polymorphs, more than 10 kinds are known, mainly has three crystal forms, namely alpha-Al2O3, beta-Al2O3, gamma-Al2O3. Wherein the structure is different and the property is also different, at the high temperature above 1300 DEG C, it is almost completely converted into alpha-Al2O3.

[0003] In the production process of aluminium oxide, the preparation method of large batch is usually prepared by Bayer method, and a large amount of red mud will be produced in the preparation process, with the development of aluminum industry and the reduction of bauxite grade, the amount of red mud will be more and more, and the red mud is an alkaline substance, with the rainwater of the red mud, the alkali in the red mud can be dissolved, which may pollute the surface water and groundwater, in order to guarantee the stability of storage, the drying method is used to treat the moisture in the aluminium oxide, and then sent to the storage yard for environmental protection treatment, and the humidity of the red mud just produced is large, and the energy waste of direct high-temperature drying is large, therefore, we separate the drying process, and therefore, we provide a waste treatment equipment for preparation of aluminium oxide. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a waste treatment equipment for preparation of aluminium oxide, which solves the problems in the background art.

[0005] To achieve the above object, the utility model realizes the following technical scheme: a waste treatment equipment for preparation of aluminium oxide, including dehumidification box, the upper support of dehumidification box has exhaust groove, the upper support of dehumidification box has heating box;

[0006] The inside of heating box is fixed with heating pipeline, the upper support of heating box has air pump, the inner chamber of heating box and the inner chamber of dehumidification box are interconnected, the output end of air pump and the inner chamber of heating box are interconnected;

[0007] The inside of exhaust groove is movably sleeved with exhaust blade, the rear of exhaust groove is supported with servo motor, the output shaft of servo motor is connected with exhaust blade, and the outer side of exhaust blade is attached to the inner side of exhaust groove.

[0008] Optionally, a feeding sleeve is fixedly installed at the rear of the dehumidification box near the top, a discharging chute is fixedly supported at the bottom of the dehumidification box, a first driving motor is fixedly installed at the rear end of the feeding sleeve and the discharging chute, a feeding blade is movably supported in the feeding sleeve, and a discharging blade is movably supported in the discharging chute.

[0009] Optionally, a lifting spiral blade is movably supported at the top of the dehumidification box, a second driving motor is fixedly installed above the middle of the dehumidification box, and the output shaft of the second driving motor is fixedly connected with the top end of the lifting spiral blade.

[0010] Optionally, the exhaust groove and the heating box are respectively located at the left side and the right side of the second driving motor, and the exhaust groove is internally provided with an up-down penetrating exhaust groove.

[0011] Optionally, the rotation directions of the two lifting spiral blades are opposite, and the low end of the lifting spiral blade extends downward to the bottom of the inner cavity of the dehumidification box.

[0012] Optionally, the output shaft of the first driving motor is connected with the rear end of the feeding blade or the rear end of the discharging blade, and the inner cavities of the feeding sleeve and the dehumidification box are in communication with the inner cavity of the discharging blade.

[0013] The utility model provides a kind of waste treatment equipment of aluminium oxide preparation, with the following beneficial effects:

[0014] 1、The waste treatment equipment of aluminium oxide preparation, by the setting of dehumidification box, there is exhaust groove and heating box in the upper side of dehumidification box, utilize the cooperation of the heating duct in the inner side of the air pump above heating box, can continuously transport hot gas to the inside of dehumidification box, utilize the cooperation of the exhaust blade and servo motor in the inner cavity of exhaust groove, can transport air to outside, control the speed of exhaust simultaneously, cooperate with each other, can complete the control of the air pressure in the inner cavity of dehumidification box, utilize the environment of high temperature and high pressure to quickly complete the discharge of moisture.

[0015] 2、The waste treatment equipment of aluminium oxide preparation, by the outside support of dehumidification box feeding sleeve, there is discharging chute in the bottom of dehumidification box, utilize the cooperation of first driving motor and feeding blade and discharging blade, can control the in and out of material, and the lifting spiral blade supported in the middle of the inner cavity of dehumidification box can control the turning of red mud in the process of use, improve the efficiency of dehumidification. ACCURACY OF DRAWINGS

[0016] Fig. 1 It is the structure schematic diagram of the utility model;

[0017] Fig. 2 It is the structure schematic diagram of the utility model split;

[0018] Fig. 3The utility model discloses a structure schematic drawing of the feeding sleeve.

[0019] Fig. 4 The utility model discloses a structure schematic drawing of the exhaust vane.

[0020] In the drawing: 1, dehumidification box body, 2, feeding sleeve, 3, feeding vane, 4, discharge groove, 5, discharge vane, 6, first drive motor, 7, lifting spiral blade, 8, heating box, 9, air pump, 10, heating pipeline, 11, exhaust groove, 12, exhaust vane, 13, servo motor, 14, second drive motor. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figs. 1 to 4 The utility model provides a kind of technical scheme: a kind of waste treatment equipment of aluminium oxide preparation, including dehumidification box body 1, the upper support of dehumidification box body 1 has exhaust groove 11, the upper support of dehumidification box body 1 has heating box 8, the setting of heating box 8 and exhaust groove 11, in the process of use, can complete the control of airflow, can cooperate control the air pressure of dehumidification box body 1 inner chamber simultaneously;

[0023] The inside of heating box 8 is fixedly equipped with heating pipeline 10, the upper support of heating box 8 has air pump 9, the inner chamber of heating box 8 and the inner chamber of dehumidification box body 1 are interconnected, the output end of air pump 9 and the inner chamber of heating box 8 are interconnected, utilize air pump 9 to continuously transport air to the inner chamber of heating box 8, complete heating after heating pipeline 10, then send to the inner chamber of dehumidification box body 1, make the inner chamber of dehumidification box body 1 pressurization, while temperature rises;

[0024] The inside of exhaust groove 11 is movably equipped with exhaust vane 12, the rear of exhaust groove 11 is supported with servo motor 13, the output shaft of servo motor 13 is connected with exhaust vane 12, the outside of exhaust vane 12 and the inside of exhaust groove 11 are pasted, utilize servo motor 13 to control the rotation of exhaust vane 12, can be exported to wet hot air, can control internal air pressure simultaneously.

[0025] The rear of dehumidification box body 1 is fixedly installed with feeding sleeve 2 near top position, the bottom of dehumidification box body 1 is fixedly supported with discharge groove 4, the rear end of feeding sleeve 2 and discharge groove 4 is fixedly installed with first drive motor 6, the inside of feeding sleeve 2 is movably supported with feeding vane 3, the inside of discharge groove 4 is movably supported with discharge vane 5, feeding sleeve 2 can continuously feed inwards, and discharge vane 5 can control discharge, while cooperating with air pump 9, can guarantee complete discharge.

[0026] The top of the dehumidification box 1 is movably supported with a lifting spiral blade 7, and a second driving motor 14 is fixedly installed above the middle of the dehumidification box 1, and the output shaft of the second driving motor 14 is fixedly connected with the top end of the lifting spiral blade 7.

[0027] The exhaust groove 11 and the heating box 8 are respectively located at the left and right sides of the second driving motor 14, and the inside of the exhaust groove 11 is provided with an up-down penetrating exhaust groove.

[0028] The rotating directions of the two lifting spiral blades 7 are opposite, the low end of the lifting spiral blade 7 extends to the bottom position of the inner cavity of the dehumidification box 1, the second driving motor 14 is started, and the two lifting spiral blades 7 are continuously controlled to rotate by the second driving motor 14, so that the rotating directions of the two lifting spiral blades 7 are opposite, the internal red mud is continuously turned over, and preliminary drying is completed.

[0029] The output shaft of the first driving motor 6 is connected with the rear end of the feeding blade 3 or the rear end of the discharging blade 5, and the inner cavities of the feeding sleeve 2 and the dehumidification box 1 are mutually communicated with the inner cavity of the discharging blade 5.

[0030] In summary, the waste treatment equipment for preparing alumina, in use, firstly, the used red mud is sent into the inside of the feeding sleeve 2 from the top of the feeding sleeve 2, then the rotation of the feeding blade 3 is controlled by the first driving motor 6 outside the feeding sleeve 2, the red mud is continuously sent into the inner cavity of the dehumidification box 1, then air is continuously sent into the inner cavity of the heating box 8 by the air pump 9, the air is heated by the heating pipeline 10, and then is sent into the inner cavity of the dehumidification box 1, so that the inner cavity of the dehumidification box 1 is pressurized and the temperature is increased, the rotation of the exhaust blade 12 is controlled by the servo motor 13, the humid hot air can be exhausted outward, and the internal air pressure can be controlled, then the second driving motor 14 is started, the two lifting spiral blades 7 are continuously controlled to rotate by the second driving motor 14, so that the rotating directions of the two lifting spiral blades 7 are opposite, the internal red mud is continuously turned over, and preliminary drying is completed, the cooperation of the air flow and the high-pressure space can quickly and preliminarily complete the removal of moisture, then during discharging, the servo motor 13 and the heating pipeline 10 are controlled to be closed, and the first driving motor 6 below is started, the high pressure in the dehumidification box 1 can assist in discharging, so as to ensure complete discharging.

[0031] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes the elements inherent in such process, method, article or device.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A waste treatment apparatus for the preparation of aluminium oxide, comprising a dehumidification cabinet (1), characterised in that: The upper side of the dehumidification box (1) is supported by an exhaust groove (11), and the upper side of the dehumidification box (1) is supported by a heating box (8). The inside of the heating box (8) is fixedly sleeved with a heating pipeline (10), the upper side of the heating box (8) is supported by an air pump (9), the inner cavity of the heating box (8) and the inner cavity of the dehumidification box (1) are interconnected, and the output end of the air pump (9) and the inner cavity of the heating box (8) are interconnected. The inside of the exhaust groove (11) is movably sleeved with an exhaust blade (12), the rear side of the exhaust groove (11) is supported by a servo motor (13), the output shaft of the servo motor (13) is connected with the exhaust blade (12), and the outer side of the exhaust blade (12) is attached to the inner side of the exhaust groove (11).

2. The apparatus for processing waste material for the production of alumina as claimed in claim 1, wherein: The rear side of the dehumidification box (1) is fixedly installed with a feeding sleeve (2) near the top, the bottom of the dehumidification box (1) is fixedly supported by a discharge groove (4), the rear end of the feeding sleeve (2) and the discharge groove (4) is fixedly installed with a first driving motor (6), the inside of the feeding sleeve (2) is movably supported by a feeding blade (3), and the inside of the discharge groove (4) is movably supported by a discharging blade (5).

3. The apparatus for processing waste material for the production of alumina as claimed in claim 1, wherein: The top of the dehumidification box (1) is movably supported by a lifting spiral blade (7), the middle upper side of the dehumidification box (1) is fixedly installed with a second driving motor (14), and the output shaft of the second driving motor (14) is fixedly connected with the top end of the lifting spiral blade (7).

4. A waste treatment apparatus for the production of alumina as claimed in claim 3 characterised in that: The exhaust groove (11) and the heating box (8) are located on the left and right sides of the second driving motor (14) respectively, and the inside of the exhaust groove (11) is provided with an exhaust groove penetrating up and down.

5. The apparatus for processing waste material for the production of alumina as claimed in claim 3 wherein: The rotation directions of the two lifting spiral blades (7) are opposite, and the low end of the lifting spiral blade (7) extends downward to the inner cavity bottom position of the dehumidification box (1).

6. The apparatus for processing waste material for the production of alumina as claimed in claim 2, wherein: The output shaft of the first driving motor (6) is connected with the rear end of the feeding blade (3) or the rear end of the discharging blade (5), and the inner cavities of the feeding sleeve (2) and the dehumidification box (1) are interconnected with the inner cavity of the discharging blade (5).