Clean resourceful treatment system and method for aluminum ash

By using a stirring device that changes the shape of the diversion chamber in the aluminum ash treatment system, the problem of low reaction efficiency caused by uneven stirring in the prior art is solved, and the reaction speed and aluminum ash treatment efficiency are significantly accelerated.

CN119162466APending Publication Date: 2024-12-20ANHUI LUWEI ALUMINUM CO LTD
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Patent Information

Application Number
CN202411208081.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

In the prior art, during the pickling and alkali washing treatment of aluminum ash, uneven stirring of the stirring equipment leads to slow diffusion speed of solids and liquids, low reaction efficiency and excessive reaction time.

Method used

Aluminum ash cleaning resource processing system including multiple tanks and mixing equipment was designed. The mixing equipment has built-in rotating shaft and mixing blades. The diversion assembly consists of two symmetrical diversion plates, and the diversion plate rotates with the mixing blades. Increase and deflect each other, change the shape of the diversion chamber, enhance the uniform mixing of liquid flow direction, and speed up the reaction speed.

Benefits of technology

Through the deflection change of the deflection plate, the efficiency of pickling, alkaline washing and neutralization reactions is significantly improved, the reaction waiting time is reduced, the working efficiency of aluminum ash treatment is improved, and the periodic speed of the rotating shaft is driven by the driving motor. The stirring effect was further optimized.

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Abstract

The invention discloses a clean resourceful treatment system and method for aluminum ash, the system comprises a tank body and a stirring device, the stirring device comprises a rotating shaft and a stirring blade, the stirring blade is internally provided with a flow guide assembly, and the flow guide assembly comprises two symmetrically arranged flow guide plates; the rotating shaft drives the stirring blades to rotate to stir the interior of the tank body, the two flow guide plates deflect oppositely along with the increase of the rotating speed of the stirring blades, and liquid in the tank body is changed into a reverse flow guide state along with the shape of the flow guide cavity. The shape of the flow guide cavity between the two flow guide plates is changed through deflection of the flow guide plates, and the flow direction of liquid passing through the stirring blades can be changed, so that solid or liquid in the tank body is quickly diffused and uniformly mixed, the stirring effect of the stirring equipment is enhanced, the efficiency of an acid washing reaction, an alkali washing reaction or a neutralization reaction is improved, and the stirring efficiency is improved. And the reaction waiting time is shortened, so that the working efficiency of aluminum ash treatment is improved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of solid pollutant treatment, and in particular relates to a clean resource treatment system for aluminum ash, and a working method of the clean resource treatment system for aluminum ash. Background Art

[0002] Aluminum ash usually contains a certain amount of aluminum metal. Recycling aluminum can reduce the demand for raw materials and reduce the resource consumption of mining and processing aluminum ore. In addition, processing aluminum ash can remove harmful chemicals, reduce pollution to the environment, and convert aluminum ash into useful by-products, reducing the pressure of waste disposal.

[0003] When aluminum ash is treated chemically, the aluminum ash to be treated is sequentially washed with an acid solution and then with an alkaline solution. During this treatment process, the diffusion rate of the aluminum ash solid and the filtrate liquid is slow, and conventional stirring equipment does not stir evenly, resulting in low reaction efficiency and a long reaction time. Summary of the invention

[0004] The present invention aims to solve the problem that the conventional stirring equipment in the prior art stirs unevenly, resulting in slow diffusion of aluminum ash solid and filtrate liquid, resulting in low reaction efficiency and long reaction time, and proposes the following technical solution:

[0005] Aluminum ash clean resource processing system, including:

[0006] A tank body, wherein the number of the tank bodies is multiple, and the multiple tank bodies are respectively used for pickling reaction, alkali washing reaction and neutralization reaction;

[0007] A stirring device, wherein the number of the stirring devices is multiple and the stirring devices are located inside the corresponding tank body, the stirring device comprises a rotating shaft and a stirring blade, a flow guide component is arranged inside the stirring blade, the flow guide component comprises two symmetrically arranged flow guide plates, a flow guide cavity is formed between the two flow guide plates, and the two flow guide plates deflect towards each other to change the shape of the flow guide cavity as the rotation speed of the stirring blade increases;

[0008] The rotating shaft drives the stirring blade to rotate and stir the inside of the tank body. The two guide plates deflect towards each other as the rotation speed of the stirring blade increases, and the liquid inside the tank body changes to a reverse diversion state according to the shape of the diversion cavity, so as to accelerate the speed of the pickling reaction, alkali washing reaction or neutralization reaction.

[0009] As a preferred embodiment of the above technical solution, a rotating rod is arranged in the middle of the guide plate, both ends of the rotating rod are rotatably inserted into the stirring blade, and one end of the rotating rod is fixedly connected to an auxiliary gear, and the two auxiliary gears are meshed.

[0010] As a preferred embodiment of the above technical solution, the guide assembly also includes a power unit located inside the stirring blade, the power unit includes a counterweight block and a worm gear component, the output end of the worm gear component is fixedly connected to the rotating rod, a return spring is fixedly connected between the counterweight block and the stirring blade, a power rack is provided on the top of the counterweight block, one side of the power rack is meshed with a power gear, and the power gear is fixedly connected to the input end of the worm gear component.

[0011] As a preferred embodiment of the above technical solution, there are multiple stirring blades, and the multiple stirring blades are circumferentially arranged relative to the middle part of the rotating shaft.

[0012] As a preferred embodiment of the above technical solution, the stirring device further comprises a driving motor, the rotating shaft is fixedly connected to an output end of the driving motor, and the driving motor drives the rotating shaft to rotate in a C direction with periodic variable speed.

[0013] As a preferred embodiment of the above technical solution, a filtering device is provided in the tank body at the bottom of the stirring device, and the filtering device is used to filter particulate matter in the liquid.

[0014] As a preferred embodiment of the above technical solution, it also includes a drying and crushing integrated machine, which is used to dry and crush the aluminum ash.

[0015] The working method of the clean resource processing system of aluminum ash includes the following steps:

[0016] S1, acidification reaction;

[0017] The dried and crushed aluminum ash is added into a tank with acid solution, stirred by a stirring device and allowed to stand, the gas product is collected, and the reaction liquid is separated into solid and liquid to obtain filter residue and filtrate A, and the filter residue is washed and dried to obtain an aluminum silicate product;

[0018] S2, alkalization reaction;

[0019] The filtrate A is added into a tank with alkali solution, stirred by a stirring device and allowed to stand, impurities are removed, carbon dioxide is introduced into the reaction solution, stirred for reaction, condensed, and filtered to obtain aluminum hydroxide crystals and filtrate B, and the aluminum hydroxide crystals are calcined to obtain an aluminum oxide product;

[0020] S3, waste liquid treatment;

[0021] After the filtrate B is treated, a corresponding neutralizing agent is added to a tank containing waste acid or waste alkali, and the waste acid or waste alkali is treated by accelerating the reaction through a stirring device.

[0022] The beneficial effects of the present invention are:

[0023] 1. By using the deflection of the guide plate to change the shape of the guide cavity between the two guide plates, the flow direction of the liquid passing through the stirring blade position can be changed, so that the solid or liquid in the tank body can be quickly diffused and evenly mixed, thereby enhancing the stirring effect of the stirring equipment, while accelerating the efficiency of the pickling reaction, alkali washing reaction or neutralization reaction, reducing the reaction waiting time to improve the working efficiency of aluminum ash treatment;

[0024] 2. The centrifugal force on the counterweight is changed by the change of the rotation speed of the rotating shaft. The moving counterweight provides power to the power unit to push the deflection of the two guide plates through two auxiliary gears. The worm gear can limit the guide plates to avoid the problem of free deflection of the guide plates due to increased water flow resistance, making the work of the guide assembly more stable.

[0025] 3. The driving motor is used to drive the rotating shaft to rotate periodically at a variable speed in the C direction, and the guide cavity between the two guide plates changes periodically, thereby achieving a better stirring effect of the stirring equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0027] Figure 2 Shown is a diagram of the installation position of the stirring device in the embodiment;

[0028] Figure 3 What is shown is the installation position diagram of the flow guide assembly in the embodiment;

[0029] Figure 4 What is shown is the installation position diagram of the power unit in the embodiment;

[0030] Figure 5 What is shown is a first state diagram of the flow guide assembly in the embodiment;

[0031] Figure 6 Shown is a second state diagram of the flow guide assembly in the embodiment.

[0032] In the figure: 10, tank body; 20, driving motor; 30, rotating shaft; 40, stirring blade; 50, guide assembly; 51, guide plate; 52, rotating rod; 53, auxiliary gear; 54, power unit; 541, counterweight block; 542, worm gear; 543, return spring; 544, power rack; 545, power gear. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings of the specification.

[0034] Example

[0035] Figure 1-Figure 2 The clean resource processing system of aluminum ash includes:

[0036] A tank body 10, wherein the number of the tank bodies 10 is multiple, and the multiple tank bodies 10 are respectively used for pickling reaction, alkali washing reaction and neutralization reaction;

[0037] A stirring device, wherein the number of the stirring devices is multiple and the stirring devices are located inside the corresponding tank body 10, the stirring device comprises a rotating shaft 30 and a stirring blade 40, a flow guide component 50 is arranged inside the stirring blade 40, and the flow guide component 50 comprises two symmetrically arranged flow guide plates 51, a flow guide cavity is formed between the two flow guide plates 51, and the two flow guide plates 51 deflect towards each other to change the shape of the flow guide cavity as the rotation speed of the stirring blade 40 increases;

[0038] The rotating shaft 30 drives the stirring blade 40 to rotate and stir the inside of the tank body 10. The two guide plates 51 deflect toward each other as the rotation speed of the stirring blade 40 increases, and the liquid inside the tank body 10 changes to a reverse flow guide state according to the shape of the guide cavity to accelerate the speed of the pickling reaction, alkali washing reaction or neutralization reaction.

[0039] The dried and crushed aluminum ash is added into the tank body 10 with acid liquid, and the rotating shaft 30 drives the stirring blade 40 to rotate to stir the inside of the tank body 10. The two guide plates 51 deflect toward each other as the rotation speed of the stirring blade 40 increases, and the shape of the guide cavity changes accordingly, so that the flow direction of the liquid inside the tank body 10 changes, thereby accelerating the speed of the pickling reaction, the alkali washing reaction or the neutralization reaction. In the pickling process, the generated gas products are collected and left to stand for a period of time to allow the filter residue to settle at the bottom of the tank body 10, and then the reaction liquid is solidified. The filter residue and filtrate A are separated and washed and dried to obtain an aluminum silicate product. The filtrate A is then added into a tank 10 containing alkali solution, stirred by a stirring device and allowed to stand, impurities are removed and carbon dioxide is introduced into the reaction solution, the reaction is stirred, condensed and filtered to obtain aluminum hydroxide crystals and filtrate B, the aluminum hydroxide crystals are calcined to obtain an alumina product, and the filtrate B is treated, and then added into a tank 10 containing waste acid or waste alkali using a corresponding neutralizing agent, and the waste acid or waste alkali is treated by accelerating the reaction with a stirring device.

[0040] By utilizing the deflection of the guide plate 51 to change the shape of the guide cavity between the two guide plates 51, the flow direction of the liquid passing through the stirring blade 40 can be changed, so that the solid or liquid in the tank body 10 can be quickly diffused and evenly mixed, thereby enhancing the stirring effect of the stirring equipment. While accelerating the efficiency of the pickling reaction, alkali washing reaction or neutralization reaction, the reaction waiting time is reduced to improve the work efficiency of aluminum ash treatment.

[0041] The working method of the clean resource processing system of aluminum ash includes the following steps:

[0042] S1, acidification reaction;

[0043] The dried and crushed aluminum ash is added into the tank 10 with the acid solution, and after being stirred by a stirring device and allowed to stand, the gaseous product is collected and the reaction liquid is separated into solid and liquid to obtain a filter residue and a filtrate A, and the filter residue is washed and dried to obtain an aluminum silicate product;

[0044] S2, alkalization reaction;

[0045] The filtrate A is added into a tank 10 with alkali solution, stirred by a stirring device and allowed to stand, impurities are removed and carbon dioxide is introduced into the reaction solution, stirred for reaction, condensed, and filtered to obtain aluminum hydroxide crystals and filtrate B, and the aluminum hydroxide crystals are calcined to obtain an aluminum oxide product;

[0046] S3, waste liquid treatment;

[0047] After the filtrate B is treated, a corresponding neutralizing agent is added to the tank 10 containing the waste acid or waste alkali, and the waste acid or waste alkali is treated by accelerating the reaction through a stirring device.

[0048] Figure 2-Figure 6 In the embodiment, a rotating rod 52 is disposed in the middle of the guide plate 51, both ends of the rotating rod 52 are rotatably inserted into the stirring blade 40, and one end of the rotating rod 52 is fixedly connected to an auxiliary gear 53, and the two auxiliary gears 53 are meshed.

[0049] The guide assembly 50 also includes a power unit 54 located inside the stirring blade 40, and the power unit 54 includes a counterweight block 541 and a worm gear 542. The output end of the worm gear 542 is fixedly connected to the rotating rod 52, and a return spring 543 is fixedly connected between the counterweight block 541 and the stirring blade 40. A power rack 544 is arranged on the top of the counterweight block 541, and a power gear 545 is meshedly connected to one side of the power rack 544. The power gear 545 is fixedly connected to the input end of the worm gear 542.

[0050] When the rotation speed of the rotating shaft 30 increases, the guide assembly 50 gradually changes from the first state to the second state, and the counterweight block 541 moves toward the inner wall of the tank body 10 due to the increase of centrifugal force and stretches the return spring 543, and the power rack 544 moves accordingly and pushes the power gear 545 to rotate. Under the transmission action of the worm gear 542, one of the rotating rods 52 drives the corresponding auxiliary gear 53 and the guide plate 51 to rotate, and the other auxiliary gear 53 rotates accordingly, and the corresponding rotating rod 52 drives the guide plate 51 to rotate, and the two guide plates 51 deflect toward each other to change the shape of the guide cavity.

[0051] The rotation speed change of the rotating shaft 30 is utilized to make the centrifugal force on the counterweight 541 different. The moving counterweight 541 provides power to the power unit 54 to push the deflection of the two guide plates 51 through the two auxiliary gears 53. The worm gear 542 is able to limit the guide plates 51 to avoid the problem of free deflection of the guide plates 51 due to increased water flow resistance, thereby making the operation of the guide assembly 50 more stable.

[0052] Figure 1-Figure 2 In the embodiment, the stirring blades 40 are multiple in number, and the multiple stirring blades 40 are circumferentially arranged relative to the middle of the rotating shaft 30 .

[0053] The stirring device further comprises a driving motor 20 , and the rotating shaft 30 is fixedly connected to the output end of the driving motor 20 . The driving motor 20 drives the rotating shaft 30 to rotate at a periodically variable speed in the C direction.

[0054] The driving motor 20 is used to drive the rotating shaft 30 to rotate at a periodic speed change in the C direction, and the guide cavity between the two guide plates 51 changes periodically, so that the stirring effect of the stirring device is better.

[0055] A filtering device is provided at the bottom of the stirring device in the tank body 10, and the filtering device is used to filter particles in the liquid.

[0056] The filtering equipment is used to filter the particles in the liquid to facilitate the separation of the reaction liquid and the solid particles.

[0057] It also includes a drying and crushing integrated machine, which is used to dry and crush the aluminum ash.

[0058] The drying and crushing integrated machine dries and crushes the aluminum ash into small pieces, which can increase the contact area between the aluminum ash and the reaction liquid, thereby accelerating the reaction speed between the aluminum ash and the reaction liquid.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A clean resource processing system for aluminum ash, characterized in that: include: A tank body (10), wherein the number of the tank bodies (10) is multiple, and the multiple tank bodies (10) are respectively used for acid washing reaction, alkaline washing reaction and neutralization reaction; A stirring device, wherein the number of the stirring devices is plural and the stirring devices are located inside a corresponding tank body (10), the stirring device comprises a rotating shaft (30) and a stirring blade (40), a flow guide component (50) is arranged inside the stirring blade (40), the flow guide component (50) comprises two symmetrically arranged flow guide plates (51), a flow guide cavity is formed between the two flow guide plates (51), and the two flow guide plates (51) deflect towards each other as the rotation speed of the stirring blade (40) increases, thereby changing the shape of the flow guide cavity; The rotating shaft (30) drives the stirring blade (40) to rotate to stir the inside of the tank body (10), and the two guide plates (51) deflect towards each other as the rotation speed of the stirring blade (40) increases, and the liquid inside the tank body (10) changes to a reverse flow guiding state according to the shape of the guide cavity, so as to accelerate the speed of the pickling reaction, the alkali washing reaction or the neutralization reaction.

2. The clean resource processing system for aluminum ash according to claim 1 is characterized in that: A rotating rod (52) is arranged in the middle of the guide plate (51), both ends of the rotating rod (52) are rotatably inserted into the stirring blade (40), and one end of the rotating rod (52) is fixedly connected to an auxiliary gear (53), and the two auxiliary gears (53) are meshed.

3. The clean resource processing system for aluminum ash according to claim 2 is characterized in that: The flow guide assembly (50) further comprises a power unit (54) located inside the stirring blade (40), the power unit (54) comprising a counterweight (541) and a worm gear (542), the output end of the worm gear (542) being fixedly connected to the rotating rod (52), a return spring (543) being fixedly connected between the counterweight (541) and the stirring blade (40), a power rack (544) being arranged on the top of the counterweight (541), a power gear (545) being meshedly connected to one side of the power rack (544), and the power gear (545) being fixedly connected to the input end of the worm gear (542).

4. The clean resource processing system for aluminum ash according to claim 1 is characterized in that: There are a plurality of stirring blades (40), and the plurality of stirring blades (40) are circumferentially arranged relative to the middle of the rotating shaft (30).

5. The clean resource processing system for aluminum ash according to claim 1, characterized in that: The stirring device further comprises a driving motor (20), the rotating shaft (30) being fixedly connected to an output end of the driving motor (20), and the driving motor (20) drives the rotating shaft (30) to rotate at a periodically variable speed in the C direction.

6. The clean resource processing system for aluminum ash according to claim 1 is characterized in that: A filtering device is provided at the bottom of the stirring device in the tank body (10), and the filtering device is used to filter particulate matter in the liquid.

7. The clean resource processing system for aluminum ash according to claim 2 is characterized in that: It also includes a drying and crushing integrated machine, which is used to dry and crush the aluminum ash.

8. The working method of the clean resource processing system of aluminum ash according to any one of claims 1 to 7, characterized in that: The following steps are included: S1, acidification reaction; Adding the dried and crushed aluminum ash into a tank (10) containing acid liquid, stirring it with a stirring device and letting it stand, collecting the gaseous product and performing solid-liquid separation of the reaction liquid to obtain a filter residue and a filtrate A, and washing and drying the filter residue to obtain an aluminum silicate product; S2, alkalization reaction; The filtrate A is added into a tank (10) containing an alkali solution, stirred by a stirring device and allowed to stand, impurities are removed, carbon dioxide is introduced into the reaction solution, stirred for reaction, condensed, and filtered to obtain aluminum hydroxide crystals and filtrate B, and the aluminum hydroxide crystals are calcined to obtain an aluminum oxide product; S3, waste liquid treatment; After the filtrate B is treated, a corresponding neutralizing agent is added to the tank (10) containing the waste acid or waste alkali, and the waste acid or waste alkali is treated by accelerating the reaction through a stirring device.