Environment-friendly recovery equipment and method for removing organic substances from sodium aluminate solution in alumina system

Abstract

The application relates to the technical field of alumina production, in particular to an environment-friendly recovery equipment and method for removing organic matters in sodium aluminate solution in an alumina system, which comprises an environment-friendly reaction barrel rotatably arranged on a reaction support table, an environment-friendly reaction barrel sealing mechanism arranged at the upper end of the environment-friendly reaction barrel, an oxygen production mechanism connected to the cover plate of the environment-friendly reaction barrel, wherein the oxygen production mechanism comprises an electrolytic generator and a hydrogen gas burner; a flow guide support pipe is connected to the bottom of the reaction support table, a filter mechanism is arranged in the flow guide support pipe, the filter mechanism comprises a first electric telescopic rod and a filter plate, and a stirring mechanism is connected to the upper side of the filter plate. Oxygen produced by electrolysis of water in the oxygen production mechanism is introduced into the environment-friendly reaction barrel, so that the oxidation of the organic matters in the sodium aluminate solution can be accelerated, the equipment is more environment-friendly compared with the existing equipment, and processes such as stirring, filtering, concentrating and impurity removal of the organic matters in the sodium aluminate solution can be simultaneously realized in the environment-friendly reaction barrel, so that the processing efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to an organic matter removing and environment-friendly recycling device and method for a sodium aluminate solution in an alumina system and belongs to the technical field of alumina production. BACKGROUND

[0002] The organic matter in the sodium aluminate solution mainly exists in the form of organic acids such as acetic acid, succinic acid, oxalic acid, propionic acid and formic acid, and also contains a small amount of glutaric acid and phthalic acid and other binary organic acids. The organic acids affect the physical and chemical properties of the solution. The organic matter changes the physical properties such as specific gravity, viscosity, boiling point and specific heat of the solution, reduces the interfacial tension, and increases the viscosity of the lye, which also increases the pump loss and reduces the economic benefits. The organic matter can be adsorbed on the crystal surface, hinders the crystal growth, makes the product aluminum hydroxide fine and fragile, and is easy to break in the filtering and calcination processes. Meanwhile, the organic matter also reduces the seed decomposition rate and affects the yield and quality of the alumina.

[0003] Therefore, it is necessary to remove the organic matter in the sodium aluminate solution in the production process of the alumina. At present, the alumina hydroxide washing solution is usually used for washing, and then hot water is used for secondary washing. The second-stage washing solution is first added with liquid alkali to increase the caustic ratio of the solution to above 6, and then lime milk is added for causticization reaction. The causticization residue is separated through a settling tank to reduce the concentration of the organic matter in the solution. The process flow is complex, a large amount of water resources are required for flushing, the efficiency is low, the environment is damaged, and the environmental protection is not conducive.

[0004] Therefore, it is necessary to improve the organic matter removing and environment-friendly recycling device for the sodium aluminate solution. SUMMARY

[0005] The application aims to provide an organic matter removing and environment-friendly recycling device and method for a sodium aluminate solution in an alumina system. Oxygen generated after electrolysis of water by an oxygen production mechanism is introduced into the inside of a reaction barrel, which can accelerate the oxidation of the organic matter in the sodium aluminate solution. Compared with the existing device, the application is more environment-friendly. The organic matter in the sodium aluminate solution is simultaneously stirred, filtered, concentrated and impurity-removed in the reaction barrel, and the processing efficiency is greatly improved.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the application comprises:

[0007] The application discloses an environmental-protection recycling equipment for removing organic matters from sodium aluminate solution in an alumina system, which comprises a reaction barrel rotatably arranged on a reaction support table, a reaction barrel sealing mechanism arranged at the upper end of the reaction barrel, the reaction barrel sealing mechanism comprising a reaction barrel cover plate and a second electric telescopic rod for vertically pushing the reaction barrel cover plate, an oxygen generating mechanism connected to the reaction barrel cover plate, the oxygen generating mechanism comprising an electrolytic generator and a hydrogen burner, the reaction barrel cover plate being connected in communication with the inside of the electrolytic generator through a water vapor conveying pipe, the hydrogen output end of the electrolytic generator being connected in communication with the hydrogen burner, and the oxygen output end of the electrolytic generator penetrating through the reaction support table and being connected in communication with the inside of the reaction barrel.

[0008] The bottom of the reaction support table is connected with a flow guide support pipe, a filtering mechanism is fixedly arranged in the inside of the flow guide support pipe, the filtering mechanism comprising a first electric telescopic rod and a filtering plate arranged at the output end of the first electric telescopic rod, the lower side of the filtering plate being provided with a sealing plate connected with the flow guide support pipe in a clamping mode, wherein the sealing plate is used for sealing the flow guide support pipe when the first electric telescopic rod is braked downward, and the upper side of the filtering plate is connected with a stirring mechanism through threads, the stirring mechanism comprising a stirring tooth fixed seat and a stirring connecting rod, and a plurality of stirring teeth are arranged on the stirring tooth fixed seat in a uniform distribution mode.

[0009] Preferably, a plurality of filtering holes are arranged on the filtering plate in a uniform distribution mode, a filtering screen is fixedly arranged in the inside of the filtering hole, a stirring fixed rod is fixedly arranged on the upper side of the filtering plate, and the stirring connecting rod and the stirring fixed rod are connected in a screwing mode.

[0010] The bottom of the first electric telescopic rod is fixedly arranged in the inside of the flow guide support pipe through a fixed connecting piece, wherein the first electric telescopic rod is used for pushing the filtering plate upward after being started upward, and the sealing plate at the bottom of the filtering plate is used for sealing the upper port of the flow guide support pipe after the first electric telescopic rod is started downward.

[0011] Preferably, a reaction barrel rotating groove is arranged at the bottom of the reaction barrel, the reaction support table is rotatably arranged in the inside of the reaction barrel rotating groove, a connecting ring is connected at the bottom of the reaction barrel rotating groove, a driven gear is fixedly arranged on the connecting ring, a driving motor is arranged at one side of the reaction barrel, a driving gear is arranged at the output end of the driving motor, the driving gear is connected with the driven gear in a meshing mode, and the driving motor is used for rotating the reaction barrel.

[0012] Preferably, the oxygen output end of the electrolytic generator is connected with the oxygen delivery main pipe between the reaction support platform, the oxygen delivery main pipe is communicated with the oxygen buffer ring, the oxygen buffer ring is communicated with a plurality of oxygen delivery branch pipes, and the oxygen delivery branch pipes penetrate through the reaction support platform and extend into the inside of the reaction barrel.

[0013] Preferably, the hydrogen output end of the electrolytic generator is communicated with the hydrogen burner through the hydrogen delivery pipe, the output end of the hydrogen burner is connected with the heating cover through the hot gas delivery pipe, the heating cover is fixedly connected with the electrolytic generator through the heating cover fixing rod, the heating cover is sleeved on the outer side of the reaction barrel, and the heating cover is used for heating the reaction barrel.

[0014] The upper side of the electrolytic generator is provided with a feeding opening communicated with the inside of the electrolytic generator.

[0015] Preferably, the reaction barrel cover plate is fixedly connected with the output end of the second electric telescopic rod, the ground side of the reaction barrel cover plate is fixedly provided with a bearing, the bearing is rotationally connected with the upper end of the reaction barrel, and the lower side of the bearing is fixedly provided with a sealing ring.

[0016] Preferably, the second electric telescopic rod is connected with the support frame body through the U-shaped fixing frame, the support frame body is connected with the support base at the bottom, the hydrogen burner is fixedly arranged on the support frame body, and the electrolytic generator is fixedly arranged on the electrolytic generator.

[0017] Preferably, the support base is fixedly provided with a fixed support column, the fixed support column is fixedly provided with a motor fixing rod and a support table fixing rod, the driving motor is fixedly arranged on the motor fixing rod, and the flow guide support pipe is fixedly arranged on the support table fixing rod.

[0018] Preferably, the upper side of the reaction support platform is provided with a heating ring groove, and the inside of the heating ring groove is fixedly provided with a heating ring.

[0019] The use method of the aluminum oxide system sodium aluminate solution organic matter removal environment-friendly recycling equipment comprises the following steps:

[0020] Step one: put in raw materials, and put mixed coal ash and the sodium aluminate solution to be treated into the inside of the reaction barrel;

[0021] Step two: stir and mix, start the driving motor on one side of the reaction barrel, drive the reaction barrel to rotate, stir the mixed coal ash and the sodium aluminate solution to be treated through the stirring mechanism on the reaction support platform, ensure that the two are fully contacted and reacted, and heat the raw materials through the heating cover or the heating ring as needed, and ensure full reaction through the temperature increasing mode.

[0022] Step three: oxidizing organic matter, electrolyzing water through the electrolysis generator, and discharging the generated oxygen into the inside of the reaction barrel through the oxygen buffer ring to oxidize the organic matter in the sodium aluminate solution to produce carbon dioxide and water;

[0023] Step four: evaporation and concentration, heating the sodium aluminate solution through the heating ring to evaporate part of the water;

[0024] Step five: solid-liquid separation, by starting the filter mechanism in the flow guide support pipe, the solid particles on the filter plate are pushed upwards and the sodium aluminate solution is filtered, while the sodium aluminate solution is discharged through the flow guide support pipe and collected through the collection barrel, and the solid waste is collected through the upper port of the reaction barrel.

[0025] The present application has at least the following advantages:

[0026] 1. The electrolysis generator on the oxygen production mechanism can electrolyze water, and the generated oxygen can be introduced into the inside of the reaction barrel to accelerate the oxidation of organic matter in the sodium aluminate solution, improve the reaction rate, and ensure the reaction rate by heating the reaction barrel with the heat generated by the combustion of hydrogen gas in the hydrogen gas burner.

[0027] 2. When the first electric telescopic rod is not started, the sealing plate on the first electric telescopic rod is clamped at the port of the flow guide support pipe, which seals the flow guide support pipe, and the filter plate on the sealing plate can filter the organic matter in the sodium aluminate solution to effectively remove solid impurities in the organic matter solution of the sodium aluminate solution, and after oxidation and concentration, the filter plate is pushed upwards by starting the first electric telescopic rod, and the sealing plate is separated from the upper port of the flow guide support pipe, and the impurity-removed organic matter of the sodium aluminate solution flows out of the flow guide support pipe and is collected.

[0028] 3. Improve the stability of the heating cover, the heating cover is sleeved on the outer side of the reaction barrel, and the heating cover is used for heating the reaction barrel, hydrogen gas is generated while water is electrolyzed, the hydrogen gas is introduced into the hydrogen gas burner for combustion, the product is water, no air pollutants are generated, the environmental protection effect is good, the heat generated by the hydrogen gas burner is transmitted to the heating cover through the hot gas conveying pipe, the reaction barrel is heated through the heating cover, and the heating ring groove is formed in the upper side of the reaction support table. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0030] Figure 1 is a sectional view of the present application;

[0031] Figure 2 is a perspective view of the present application;

[0032] Figure 3 is a structure view of the reaction bucket of the present application;

[0033] Figure 4 is a sectional view of the reaction bucket of the present application;

[0034] Figure 5 is a structure view of the sealing mechanism of the reaction bucket of the present application;

[0035] Figure 6 is a structure view of the oxygen production mechanism of the present application;

[0036] Figure 7 is a structure view of the reaction support table of the present application;

[0037] Figure 8 is a structure view of the filtering mechanism of the present application;

[0038] Figure 9 is a structure view of the driving motor of the present application;

[0039] Figure 10 is a structure view of the oxygen buffer ring of the present application.

[0040] 1, reaction bucket; 101, reaction bucket rotating groove; 102, connecting ring; 103, driven gear; 2, reaction support table; 201, flow guide support pipe; 202, heating ring groove; 3, filtering mechanism; 301, first electric telescopic rod; 302, filter plate; 303, filter hole; 304, filter screen; 305, sealing plate; 306, fixed connecting plate; 307, stirring fixed rod; 4, stirring mechanism; 401, stirring connecting rod; 402, stirring tooth fixed seat; 403, stirring tooth; 5, oxygen production mechanism; 501, electrolytic generator; 502, hydrogen gas burner; 503, hydrogen gas delivery pipe; 504, water vapor delivery pipe; 505, hot gas delivery pipe; 506, oxygen gas delivery main pipe; 507, oxygen gas buffer ring; 508, oxygen gas delivery branch pipe; 509, heating cover; 510, material injection port; 511, heating cover fixed rod; 6, reaction bucket sealing mechanism; 601, reaction bucket cover plate; 602, bearing; 603, second electric telescopic rod; 7, driving motor; 701, driving gear; 8, heating ring; 9, support frame body; 901, support base; 902, U-shaped fixed frame; 903, fixed support column; 904, motor fixed rod; 905, support table fixed rod; 10, collection bucket. DETAILED DESCRIPTION

[0041] The implementation of the present application will be described in detail below with the help of the accompanying drawings and examples, so that the process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0042] As Figures 1-10As shown, the aluminum oxide system provided by the embodiment of the application includes a reaction barrel 1 rotatably arranged on a reaction support table 2, a reaction barrel rotating groove 101 is arranged at the bottom of the reaction barrel 1, the reaction support table 2 is rotatably arranged in the reaction barrel rotating groove 101, a connecting ring 102 is connected to the bottom of the reaction barrel rotating groove 101, a driven gear 103 is fixedly arranged on the connecting ring 102, a driving motor 7 is arranged on one side of the reaction barrel 1, a driving gear 701 is arranged at the output end of the driving motor 7, the driving gear 701 is in meshing connection with the driven gear 103, the driving motor 7 is used to rotate the reaction barrel 1, the driving gear 701 rotates after the driving motor 7 is started, and drives the reaction barrel 1 to rotate, so as to realize the purpose of stirring and accelerate the reaction rate, the reaction barrel 1 rotates relative to the reaction support table 2, so that the raw materials in the reaction barrel 1 can be stirred by rotating the reaction barrel 1 without moving the reaction support table 2, a reaction barrel sealing mechanism 6 is arranged at the upper end of the reaction barrel 1, the upper port of the reaction barrel 1 is sealed by the reaction barrel sealing mechanism 6, the reaction rate is accelerated by increasing the air pressure, the reaction barrel sealing mechanism 6 includes a reaction barrel cover plate 601 and a second electric telescopic rod 603 used for vertically pushing the reaction barrel cover plate 601, the reaction barrel cover plate 601 is braked by the second electric telescopic rod 603, so as to facilitate the raw materials to be put into the reaction barrel 1 and facilitate the residual materials to be discharged through the port of the reaction barrel 1 in the later stage, the structure is simple and the convenience of use is improved, an oxygen generating mechanism 5 is connected to the reaction barrel cover plate 601, the oxygen generating mechanism 5 includes an electrolytic generator 501 and a hydrogen gas burner 502, the reaction barrel cover plate 601 is in communication with the inside of the electrolytic generator 501 through a water vapor conveying pipe 504, the hydrogen gas output end of the electrolytic generator 501 is in communication with the hydrogen gas burner 502, the oxygen gas output end of the electrolytic generator 501 penetrates through the reaction support table 2 and is in communication with the inside of the reaction barrel 1, the electrolytic generator 501 on the oxygen generating mechanism 5 can electrolyze water, oxygen is generated after the electrolysis of water, and then the generated oxygen is introduced into the inside of the reaction barrel 1, so as to accelerate the oxidation of the sodium aluminate solution organic matter and improve the reaction rate, the generated hydrogen gas enters the inside of the hydrogen gas burner 502 and is burned in the inside of the hydrogen gas burner 502, the generated heat can be used to heat the reaction barrel 1, so as to ensure the reaction rate, and the device is more environmentally friendly compared with the existing device.

[0043] Meanwhile, the water vapor generated in the reaction barrel 1 is liquefied into water after entering the inside of the electrolytic generator 501 and then enters the inside of the electrolytic generator 501 again, so as to be recycled and improve the utilization rate of resources.

[0044] In addition, the bottom of the reaction support table 2 is connected with a flow guide support pipe 201, the inside of the flow guide support pipe 201 is fixedly provided with a filtering mechanism 3, a first electric telescopic rod 301 on the filtering mechanism 3 is fixedly arranged in the inside of the flow guide support pipe 201, the filtering mechanism 3 comprises the first electric telescopic rod 301 and a filtering plate 302 arranged at the output end of the first electric telescopic rod 301, the lower side of the filtering plate 302 is provided with a sealing plate 305 which is clamped and connected with the flow guide support pipe 201, when the first electric telescopic rod 301 is not started, the sealing plate 305 on the first electric telescopic rod 301 is clamped at the port of the flow guide support pipe 201, which is equivalent to sealing the flow guide support pipe 201, the filtering plate 302 on the sealing plate 305 can filter the sodium aluminate solution organic matter, effectively removing the solid impurities in the sodium aluminate solution organic matter solution, and plays a certain filtering role, wherein when the first electric telescopic rod 301 is braked downward, the sealing plate 305 is used for sealing the flow guide support pipe 201, after oxidation is completed and concentration, the filtering plate 302 is pushed upward by starting the first electric telescopic rod 301, at the same time, the sealing plate 305 is separated from the upper port of the flow guide support pipe 201, the impurity-removed sodium aluminate solution organic matter flows out from the flow guide support pipe 201 and is collected, the filtering plate 302 continues to rise, and the impurities are pushed upward and taken out from the port of the reaction bucket 1.

[0045] Moreover, the upper side of the filtering plate 302 is connected with a stirring mechanism 4 through threads, the stirring mechanism 4 comprises a stirring tooth fixed seat 402 and a stirring connecting rod 401, a plurality of stirring teeth 403 are arranged on the stirring tooth fixed seat 402 and are uniformly distributed, when the reaction bucket 1 rotates, the stirring mechanism 4 on the filtering plate 302 rotates relative to the reaction bucket 1, and after the stirring mechanism 4 is started, the stirring teeth 403 can be rotated in any direction, which can achieve the purpose of stirring the sodium aluminate solution organic matter, and accelerate the reaction rate, therefore, the filtering mechanism 3 can realize the processes of stirring, filtering, concentrating and impurity removal of the sodium aluminate solution organic matter at the same time, and greatly improves the processing efficiency.

[0046] Further, as shown in FIG. 1, Figure 7 and Figure 8As shown, the filter plate 302 is provided with a plurality of evenly distributed filter holes 303, and a filter screen 304 is fixedly arranged in the filter hole 303. The filter screen 304 is arranged in the filter hole 303, so that the sodium aluminate solution organic matter can be filtered through the filter screen 304, and at the same time, the solid impurities are filtered to the upper side of the filter plate 302. The upper side of the filter plate 302 is fixedly provided with a stirring fixed rod 307, and the stirring connecting rod 401 is threadedly connected with the stirring fixed rod 307. The stirring connecting rod 401 on the stirring mechanism 4 is threadedly connected with the stirring fixed rod 307 on the filter plate 302, so that the stirring mechanism 4 is conveniently installed, and the convenience of use is improved. The bottom of the first electric telescopic rod 301 is fixedly arranged in the inner portion of the flow guide support pipe 201 through the fixing connecting piece 306. When the first electric telescopic rod 301 is upwardly started, the first electric telescopic rod 301 is used for upwardly pushing the filter plate 302. When the first electric telescopic rod 301 is downwardly started, the sealing plate 305 at the bottom of the filter plate 302 seals the upper port of the flow guide support pipe 201.

[0047] Further, as shown in Figure 6 , 7 and Figure 10 , the oxygen output end of the electrolytic generator 501 is connected with the oxygen delivery main pipe 506 between the reaction support table 2, and the oxygen delivery main pipe 506 is communicated with the oxygen buffer ring 507. The oxygen buffer ring 507 is communicated with a plurality of oxygen delivery branch pipes 508, and the oxygen delivery branch pipes 508 penetrate through the reaction support table 2 and extend into the inner portion of the reaction barrel 1. After the electrolytic generator 501 generates oxygen, the oxygen is discharged into the inner portion of the reaction barrel 1 through the oxygen buffer ring 507 and the oxygen delivery branch pipes 508, so that the oxygen fully reacts with the organic matter in the sodium aluminate solution in the reaction barrel 1, reducing the use of chemical reagents and being environmentally friendly and energy-saving.

[0048] The hydrogen output end of the electrolytic generator 501 is communicated with the hydrogen burner 502 through the hydrogen delivery pipe 503. The output end of the hydrogen burner 502 is connected with the heating cover 509 through the hot gas delivery pipe 505. The heating cover 509 is fixedly connected with the electrolytic generator 501 through the heating cover fixing rod 511, improving the stability of the heating cover 509. The heating cover 509 is sleeved on the outer side of the reaction barrel 1. The heating cover 509 is used for heating the reaction barrel 1. While electrolyzing water, hydrogen is introduced into the inner portion of the hydrogen burner 502 for combustion. The product is water, which does not produce air pollutants, and the environmental protection effect is good. The heat generated by the hydrogen burner 502 is transmitted to the heating cover 509 through the hot gas delivery pipe 505, and the reaction barrel 1 is heated through the heating cover 509. The upper side of the reaction support table 2 is provided with a heating ring groove 202, fully utilizing resources and improving the utilization rate of resources.

[0049] The upper side of the electrolytic generator 501 is provided with a feeding opening 510 in communication with the inside of the electrolytic generator 501, and water and electrolyte can be added to the inside of the electrolytic generator 501 through the feeding opening 510 on the electrolytic generator 501, thereby improving the convenience of use.

[0050] Further, as shown in Figure 2 、 Figure 5 and Figure 6 , the reaction bucket cover plate 601 is fixedly connected with the output end of the second electric telescopic rod 603, the ground side of the reaction bucket cover plate 601 is fixedly provided with a bearing 602, the bearing 602 is rotatably connected with the upper end of the reaction bucket 1, and the lower side of the bearing 602 is fixedly provided with a sealing ring. In order to ensure that the reaction bucket 1 is sealed by the reaction bucket sealing mechanism 6 while also ensuring that the reaction bucket 1 can rotate, a bearing 602 is fixedly provided at the bottom of the reaction bucket cover plate 601 to ensure the stability of the rotation of the reaction bucket 1. The second electric telescopic rod 603 is connected with a support frame body 9 through a U-shaped fixing frame 902, the bottom of the support frame body 9 is connected with a support base 901, the hydrogen gas burner 502 is fixedly arranged on the support frame body 9, the electrolytic generator 501 is fixedly arranged on the electrolytic generator 501, and the oxygen generating mechanism 5 is fixedly arranged on the support frame body 9, thereby improving the structural strength of the electrolytic generator 501 and the hydrogen gas burner 502.

[0051] In addition, the support base 901 is fixedly provided with a fixed support column 903, the fixed support column 903 is fixedly provided with a motor fixing rod 904 and a support table fixing rod 905, the driving motor 7 is fixedly arranged on the motor fixing rod 904, and the flow guide support pipe 201 is fixedly arranged on the support table fixing rod 905. The driving motor 7 and the flow guide support pipe 201 are also fixedly arranged on the support frame body 9, thereby improving the structural strength, reducing the volume, and improving the space utilization.

[0052] The inside of the heating ring groove 202 is fixedly provided with a heating ring 8, which is used for heating the sodium aluminate solution. By starting the heating ring 8 on the heating ring groove 202 to heat the sodium aluminate solution, evaporation and concentration of the sodium aluminate solution can be realized.

[0053] As shown in Figures 1-10 , the use method of the sodium aluminate solution organic matter removal and environmental protection recycling equipment in the alumina system provided by the embodiment includes the following steps:

[0054] Step one: input raw materials, mix the coal ash with the sodium aluminate solution to be treated and input into the inside of the reaction bucket 1;

[0055] Step two: stirring mixing, starting the drive motor 7 on one side of the reaction barrel 1, driving the reaction barrel 1 to rotate, and stirring the mixed coal ash and the sodium aluminate solution to be treated through the stirring mechanism 4 on the reaction support table 2, to ensure that the two are in full contact and reaction, and to heat the raw materials through the heating cover 509 or the heating ring 8 as needed, to ensure full reaction by increasing the temperature;

[0056] Step three: oxidizing organic matter, electrolyzing water through the electrolysis generator 501, and discharging the generated oxygen into the inside of the reaction barrel 1 through the oxygen buffer ring 507, to oxidize the organic matter in the sodium aluminate solution to produce carbon dioxide and water;

[0057] Step four: evaporation and concentration, heating the sodium aluminate solution through the heating ring 8 to evaporate part of the water;

[0058] Step five: solid-liquid separation, pushing the solid particles on the filter plate 302 upward and filtering the sodium aluminate solution through the filter mechanism 3 in the flow guide support pipe 201, while the sodium aluminate solution is discharged through the flow guide support pipe 201 and collected through the collection barrel 10, and the solid waste is collected through the upper port of the reaction barrel 1.

[0059] As certain words are used throughout the specification and claims to refer to particular components. As one skilled in the art will appreciate, hardware manufacturers can refer to a component by different names. This document does not intend to distinguish between components that differ in name but not in function. As used throughout this document and in the claims, "comprising" is intended to mean "including, but not limited to." "Consisting essentially of" means that the composition can include additional components, but only if such additional components do not materially alter the basic and novel characteristics of the claimed composition. "Consisting of" means an exclusive composition comprising the listed components.

[0060] It should be noted that the terms "comprising," "including," and "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.

[0061] The foregoing description illustrates and describes several preferred embodiments of the present application, but it is to be understood that the application is not limited to the above-described forms, and that it should not be seen as excluding other embodiments, but rather as being applicable in a variety of other combinations, modifications and environments, and capable of being altered in various ways within the scope of the inventive concept as described herein, by means of the teachings contained herein or knowledge of the relevant art. Any alterations and further modifications in the described embodiments are to be considered as falling within the scope of the present application as defined by the appended claims, provided that such alterations and further modifications do not depart from the spirit and scope of the present application.

Claims

1. An environmentally friendly recovery device for removing organic substances from a sodium aluminate solution in an alumina system, comprising a reaction barrel (1) rotatably arranged on a reaction support table (2), characterized in that, The upper end of the reaction bucket (1) is provided with a reaction bucket sealing mechanism (6), the reaction bucket sealing mechanism (6) comprises a reaction bucket cover plate (601) and a second electric telescopic rod (603) for vertically pushing the reaction bucket cover plate (601), an oxygen generating mechanism (5) is connected to the reaction bucket cover plate (601), the oxygen generating mechanism (5) comprises an electrolytic generator (501) and a hydrogen gas burner (502), the reaction bucket cover plate (601) is communicated with the inside of the electrolytic generator (501) through a water vapor conveying pipe (504), the hydrogen gas output end of the electrolytic generator (501) is communicated with the hydrogen gas burner (502), and the oxygen gas output end of the electrolytic generator (501) penetrates the reaction support table (2) and is communicated with the inside of the reaction bucket (1); An oxygen gas conveying main pipe (506) is connected between the oxygen gas output end of the electrolytic generator (501) and the reaction support table (2), the oxygen gas conveying main pipe (506) is communicated with an oxygen gas buffer ring (507), a plurality of oxygen gas conveying branch pipes (508) are communicated with the oxygen gas buffer ring (507), and the oxygen gas conveying branch pipes (508) penetrate the reaction support table (2) and extend into the inside of the reaction bucket (1); The hydrogen gas output end of the electrolytic generator (501) is communicated with the hydrogen gas burner (502) through a hydrogen gas conveying pipe (503), the output end of the hydrogen gas burner (502) is connected with a heating cover (509) through a hot gas conveying pipe (505), the heating cover (509) is fixedly connected with the electrolytic generator (501) through a heating cover fixing rod (511), the heating cover (509) is sleeved on the outer side of the reaction bucket (1), the heating cover (509) is used for heating the reaction bucket (1), and the upper side of the electrolytic generator (501) is provided with a material injection port (510) communicated with the inside of the electrolytic generator (501); The bottom of the reaction support table (2) is connected with a flow guide support pipe (201), a filtering mechanism (3) is fixedly arranged in the inside of the flow guide support pipe (201), the filtering mechanism (3) comprises a first electric telescopic rod (301) and a filtering plate (302) arranged at the output end of the first electric telescopic rod (301), the lower side of the filtering plate (302) is provided with a sealing plate (305) clamped and connected with the flow guide support pipe (201), wherein when the first electric telescopic rod (301) is braked downward, the sealing plate (305) is used for sealing the flow guide support pipe (201), and the upper side of the filtering plate (302) is threadedly connected with a stirring mechanism (4), the stirring mechanism (4) comprises a stirring tooth fixing seat (402) and a stirring connecting rod (401), and a plurality of stirring teeth (403) are arranged on the stirring tooth fixing seat (402). The bottom of the reaction bucket (1) is provided with a reaction bucket rotating groove (101), the reaction support table (2) is rotatably arranged in the reaction bucket rotating groove (101), the bottom of the reaction bucket rotating groove (101) is connected with a connecting ring (102), the connecting ring (102) is fixedly provided with a driven gear (103), one side of the reaction bucket (1) is provided with a driving motor (7), the output end of the driving motor (7) is provided with a driving gear (701), the driving gear (701) is in meshing connection with the driven gear (103), and the driving motor (7) is used for rotating the reaction bucket (1). The environmental protection recycling equipment comprises a collecting barrel (10); The upper side of the reaction support table (2) is provided with a heating ring groove (202), and the heating ring groove (202) is fixedly provided with a heating ring (8) inside.

2. The sodium aluminate solution organic removal and recovery system of claim 1, wherein: A plurality of uniformly distributed filter holes (303) are formed in the filter plate (302), and a filter screen (304) is fixedly arranged in the filter hole (303). The bottom of the first electric telescopic rod (301) is fixedly arranged in the inner portion of the flow guide support pipe (201) through a fixed connecting piece (306), wherein the first electric telescopic rod (301) is used for pushing the filter plate (302) upward after being started upward, and the sealing plate (305) at the bottom of the filter plate (302) seals the upper end of the flow guide support pipe (201) after the first electric telescopic rod (301) is started downward.

3. The sodium aluminate solution organic removal and recovery system of claim 1, wherein: The reaction bucket cover plate (601) is fixedly connected with the output end of the second electric telescopic rod (603), the ground side of the reaction bucket cover plate (601) is fixedly provided with a bearing (602), the bearing (602) is rotatably connected with the upper end of the reaction bucket (1), and the lower side of the bearing (602) is fixedly provided with a sealing ring.

4. The sodium aluminate solution organic removal and recovery system of claim 1, wherein: The second electric telescopic rod (603) is connected with a support frame body (9) through a U-shaped fixing frame (902), the bottom of the support frame body (9) is connected with a support base (901), the hydrogen gas burner (502) is fixedly arranged on the support frame body (9), and the electrolytic generator (501) is fixedly arranged on the electrolytic generator (501).

5. The sodium aluminate solution organic removal and recovery system of claim 4, wherein: The support base (901) is fixedly provided with a fixed support column (903), the fixed support column (903) is fixedly provided with a motor fixing rod (904) and a support table fixing rod (905), the driving motor (7) is fixedly arranged on the motor fixing rod (904), and the flow guide support pipe (201) is fixedly arranged on the support table fixing rod (905).

6. The use of the environmentally friendly recovery equipment for removing organic substances from sodium aluminate solution in an alumina system, characterized in that, The sodium aluminate solution organic matter removing environmental protection recycling equipment in the alumina system according to any one of claims 1-5 is used, comprising the following steps: Step one: put in raw materials, mixed coal ash and sodium aluminate solution to be treated together into the inside of the reaction bucket (1); Step two: stir the mixture, start the drive motor (7) on one side of the reaction bucket (1), drive the reaction bucket (1) to rotate, stir the mixed coal ash and sodium aluminate solution to be treated through the stirring mechanism (4) on the reaction support table (2), ensure that the two are in full contact and reaction, and heat the raw materials through the heating cover (509) or the heating ring (8) as needed, and ensure full reaction by increasing the temperature; Step three: oxidize organic matter, electrolyze water through the electrolysis generator (501), and discharge the generated oxygen into the inside of the reaction bucket (1) through the oxygen buffer ring (507), oxidize the organic matter in the sodium aluminate solution to produce carbon dioxide and water; Step four: evaporate and concentrate, heat the sodium aluminate solution through the heating ring (8) to evaporate part of the water; Step five: solid-liquid separation, start the filter mechanism (3) in the flow guide support pipe (201), push the solid particles on the filter plate (302) upwards and filter the sodium aluminate solution, while the filter plate (302) is pushed upwards, the sodium aluminate solution is discharged through the flow guide support pipe (201) and collected through the collection bucket (10), and the solid waste is collected through the upper port of the reaction bucket (1).

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