Denitrification aluminum ash iron removal system

Abstract

The utility model discloses a denitrification aluminum ash deironing system which comprises a first deironing mechanism, a size mixing and stirring tank and a second deironing mechanism, the first deironing mechanism comprises a first magnetic rod group and a second magnetic rod group which are arranged up and down, and the first magnetic rod group and the second magnetic rod group are sequentially contacted with aluminum ash powder passing through from top to bottom; the size mixing and stirring tank is used for receiving the aluminum ash powder output by the first discharging opening and mixing the aluminum ash powder into aluminum ash slurry; the second iron removal mechanism is used for receiving the aluminum mortar from the mortar mixing and stirring tank and adsorbing iron components in the aluminum mortar and comprises a first magnetic rod set and a second magnetic rod set which are rotationally arranged, and the first magnetic rod set and the second magnetic rod set are sequentially arranged in the conveying direction of the aluminum mortar. And the first magnetic rod group and the second magnetic rod group rotate and stir so as to contact and adsorb iron components in the aluminum mortar. The denitrification aluminum ash iron removal system disclosed by the utility model can improve the removal effect on weakly magnetic iron elements.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum ash treatment, and in particular to a denitrification and iron removal system for aluminum ash. Background Technology

[0002] A large amount of aluminum ash is generated during the production of aluminum profiles through melting, casting, and electrolytic aluminum. The aluminum ash contains metallic aluminum, more than 60% aluminum oxide, aluminum nitride, magnesium oxide, silicon oxide, iron, and iron oxide, among other impurities.

[0003] In the process of resource utilization of aluminum ash, it is necessary to remove iron from the aluminum ash after wet or semi-dry denitrification in order to remove the iron element in the aluminum ash and improve the purity of the aluminum element in the aluminum ash.

[0004] However, existing denitrification aluminum ash iron removal systems can remove metallic iron, but they are ineffective at removing weakly magnetic iron. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a denitrification aluminum ash and iron removal system, which can improve the removal efficiency of weakly magnetic iron elements.

[0006] A denitrification and iron removal system for aluminum ash according to an embodiment of the present invention includes:

[0007] The first iron removal mechanism has a first inlet at the top and a first outlet at the bottom. It includes a first magnetic rod group and a second magnetic rod group arranged vertically. The first magnetic rod group and the second magnetic rod group contact the aluminum ash powder passing from top to bottom in sequence to adsorb iron powder and weakly magnetic iron oxide powder in the aluminum ash powder.

[0008] A slurry mixing tank is used to receive aluminum ash powder output from the first discharge port and to mix the aluminum ash powder into aluminum ash slurry.

[0009] The second iron removal mechanism is used to receive aluminum ash slurry from the mixing tank and adsorb the iron component in the aluminum ash slurry. It includes a first magnetic rod group and a second magnetic rod group that are rotatably arranged. The first magnetic rod group and the second magnetic rod group are arranged sequentially along the conveying direction of the aluminum ash slurry. The first magnetic rod group and the second magnetic rod group rotate and stir to contact and adsorb the iron component in the aluminum ash slurry.

[0010] A denitrification and iron removal system for aluminum ash and iron removal according to an embodiment of the present utility model has at least the following beneficial effects:

[0011] 1. This utility model incorporates a first iron removal mechanism, comprising a first magnetic rod group and a second magnetic rod group arranged vertically. The first and second magnetic rod groups sequentially contact the aluminum ash powder passing from top to bottom to adsorb iron powder and weakly magnetic iron oxide powder from the aluminum ash powder. It is understood that when the aluminum ash powder enters the first iron removal mechanism from the first inlet, it falls downwards due to its own gravity. During this falling process, the first and second magnetic rod groups sequentially contact the aluminum ash powder, allowing the first iron removal mechanism to repeatedly contact and adsorb iron powder and weakly magnetic iron oxide powder during the falling process. This facilitates the thorough adsorption and removal of iron powder and weakly magnetic iron oxide powder from the aluminum ash powder, improving the removal efficiency of iron components in the aluminum ash powder.

[0012] 2. This utility model, by setting up a slurry mixing tank and a second iron removal mechanism, receives the aluminum ash powder output from the first outlet and modulates it into an aluminum ash slurry. The second iron removal mechanism receives the aluminum ash slurry from the slurry mixing tank and adsorbs the iron components in the aluminum ash slurry. It can be understood that by modifying the aluminum ash powder output from the first iron removal mechanism into an aluminum ash slurry, the flowability of the iron components in the aluminum ash slurry is improved, thereby making it easier for the iron components in the aluminum ash slurry to be adsorbed by the second iron removal mechanism, and thus making the iron removal of the aluminum ash slurry by the second iron removal mechanism more thorough.

[0013] 3. This utility model includes a second iron removal mechanism comprising a first magnetic rod group and a second magnetic rod group that are rotatably arranged. The first magnetic rod group and the second magnetic rod group are arranged sequentially along the conveying direction of the aluminum ash slurry. The first magnetic rod group and the second magnetic rod group rotate and stir to contact and adsorb the iron components in the aluminum ash slurry. It can be understood that, on the one hand, the first magnetic rod group and the second magnetic rod group contact the aluminum ash slurry sequentially, which can adsorb the iron components in the aluminum ash slurry multiple times, which is beneficial to fully adsorb the iron components in the aluminum ash slurry. On the other hand, the rotational arrangement of the first magnetic rod group and the second magnetic rod group can increase the contact range between the first magnetic rod group and the second magnetic rod group and the aluminum ash slurry, so that the second iron removal mechanism can remove iron from the aluminum ash slurry more thoroughly.

[0014] 4. By setting up a first iron removal mechanism, a slurry mixing tank, and a second iron removal mechanism, this utility model enables aluminum ash to undergo magnetic iron removal in both dry and wet states. This facilitates thorough iron removal from aluminum ash by the aluminum ash iron removal system, improves the removal effect on weakly magnetic iron elements, and promotes the high-value recycling of aluminum ash resources, resulting in good economic and social benefits.

[0015] According to some embodiments of the present invention, the first iron removal mechanism further includes a first iron removal chamber and a first transfer component. The first transfer component is used to transfer the first magnetic rod group and the second magnetic rod group to the first iron removal chamber to clean and discharge the iron-containing powder adhering to the first magnetic rod group and the second magnetic rod group.

[0016] The advantage of this invention is that by including a first iron removal chamber and a first transfer component in the first iron removal mechanism, the first transfer component is used to transfer the first magnetic rod group and the second magnetic rod group to the first iron removal chamber to clean and discharge the iron-containing powder adhering to the first magnetic rod group and the second magnetic rod group. This facilitates timely cleaning of the iron-containing powder adhering to the first magnetic rod group and the second magnetic rod group, and avoids excessive iron-containing powder adhering to the first magnetic rod group and the second magnetic rod group, which would affect the magnetic attraction and iron removal effect of the first magnetic rod group and the second magnetic rod group on aluminum ash powder.

[0017] According to some embodiments of the present invention, at least two first magnetic rod groups and at least two second magnetic rod groups are provided. The first transfer component is used to alternately transfer at least two first magnetic rod groups to the first iron discharge chamber to clean and discharge iron-containing powder adhering to the first magnetic rod groups and to alternately transfer at least two second magnetic rod groups to the first iron discharge chamber to clean and discharge iron-containing powder adhering to the second magnetic rod groups.

[0018] Advantageously, this invention provides at least two first magnetic rod groups and at least two second magnetic rod groups. The first transfer component is used to alternately transfer at least two of the first magnetic rod groups to the first iron removal chamber to clean and remove iron-containing powder adhering to the first magnetic rod groups and to alternately transfer at least two of the second magnetic rod groups to the first iron removal chamber to clean and remove iron-containing powder adhering to the second magnetic rod groups. This allows at least two first magnetic rod groups and at least two second magnetic rod groups to alternately move to the first iron removal chamber to clean and remove iron-containing powder. This ensures that when the first magnetic rod groups and the second magnetic rod groups are cleaning and removing iron-containing powder in the first iron removal chamber, at least one first magnetic rod group and one second magnetic rod group are contacting and removing iron from the aluminum ash powder.

[0019] According to some embodiments of the present invention, the magnetic forces of the first magnetic rod group and the second magnetic rod group are set differently, with the magnetic force of the first magnetic rod group being less than that of the second magnetic rod group.

[0020] The advantage of this invention is that by setting the magnetic forces of the first magnetic rod group and the second magnetic rod group to be different, with the magnetic force of the first magnetic rod group being less than that of the second magnetic rod group, the iron-containing powder can be more evenly adsorbed onto the first and second magnetic rod groups. This avoids the iron-containing powder from adhering entirely to the first magnetic rod group, which would result in excessive iron-containing powder adhering to the first magnetic rod group and affect the subsequent iron removal effect.

[0021] According to some embodiments of the present invention, a metering pump is provided between the slurry mixing tank and the second iron removal mechanism. The metering pump is used to meterly transport the aluminum ash slurry prepared in the slurry mixing tank to the second iron removal mechanism.

[0022] The advantage of this invention is that by providing a metering pump between the slurry mixing tank and the second iron removal mechanism, the metering pump is used to quantitatively transport the prepared aluminum ash slurry in the slurry mixing tank to the second iron removal mechanism, thereby making the feeding speed of the second iron removal mechanism more stable, which in turn helps to ensure the iron removal stability of the aluminum ash slurry by the second iron removal mechanism.

[0023] According to some embodiments of the present invention, the second iron removal mechanism further includes a second iron removal chamber and a second transfer component. The second transfer component is used to transfer the first magnetic rod group and the second magnetic rod group to the second iron removal chamber to clean and remove the iron-containing components adhering to the first magnetic rod group and the second magnetic rod group.

[0024] The advantage of this invention is that by including a second iron removal chamber and a second transfer component in the second iron removal mechanism, the second transfer component is used to transfer the first magnetic rod group and the second magnetic rod group to the second iron removal chamber to clean and discharge the iron-containing powder adhering to the first magnetic rod group and the second magnetic rod group. This facilitates timely cleaning of the iron-containing components adhering to the first magnetic rod group and the second magnetic rod group, and avoids excessive iron-containing components adhering to the first magnetic rod group and the second magnetic rod group, which would affect the magnetic attraction and iron removal effect of the first magnetic rod group and the second magnetic rod group on the aluminum ash slurry.

[0025] According to some embodiments of the present invention, at least two first magnetic rod groups and at least two second magnetic rod groups are provided. The second transfer component is used to alternately transfer at least two of the first magnetic rod groups to the second iron discharge chamber to clean and discharge the iron-containing components adhering to the first magnetic rod groups and to alternately transfer at least two of the second magnetic rod groups to the second iron discharge chamber to clean and discharge the iron-containing components adhering to the second magnetic rod groups.

[0026] The advantage of this invention is that by providing at least two first magnetic rod groups and at least two second magnetic rod groups, and by using the second transfer component to alternately transfer at least two of the first magnetic rod groups to the second iron removal chamber to clean and remove the iron-containing components adhering to the first magnetic rod groups and to alternately transfer at least two of the second magnetic rod groups to the second iron removal chamber to clean and remove the iron-containing components adhering to the second magnetic rod groups, the at least two first magnetic rod groups and at least two second magnetic rod groups can be alternately moved to the second iron removal chamber to clean and remove the iron-containing components. This ensures that when the first magnetic rod groups and the second magnetic rod groups are cleaning and removing the iron-containing components in the second iron removal chamber, at least one first magnetic rod group and one second magnetic rod group are contacting and removing iron from the aluminum ash components.

[0027] According to some embodiments of the present invention, a plate and frame diaphragm filter press is also included, which is used to receive the aluminum ash output from the second iron removal mechanism and dehydrate the aluminum ash by pressing.

[0028] The advantages of this invention are: by setting up a plate and frame diaphragm filter press, which is used to receive the aluminum ash material output by the second iron removal mechanism and press and dehydrate the aluminum ash material, the aluminum ash material after iron removal is dehydrated, which facilitates the packaging, transportation and use of the iron-removed aluminum ash material.

[0029] According to some embodiments of the present invention, a temporary storage chamber is provided between the second iron removal mechanism and the plate and frame diaphragm filter press. The temporary storage chamber is used to store the aluminum ash slurry after iron removal output by the second iron removal mechanism. A filter press pump is provided between the temporary storage chamber and the plate and frame diaphragm filter press. The filter press pump is used to pump the aluminum ash slurry in the temporary storage chamber to the plate and frame diaphragm filter press.

[0030] The advantages of this invention are: by providing a temporary storage chamber between the second iron removal mechanism and the plate and frame diaphragm filter press, the temporary storage chamber is used to store the iron-removed aluminum ash slurry output by the second iron removal mechanism. A filter press pump is provided between the temporary storage chamber and the plate and frame diaphragm filter press, and the filter press pump is used to pump the aluminum ash slurry in the temporary storage chamber to the plate and frame diaphragm filter press. It can be understood that by using the temporary storage chamber to store the iron-removed aluminum ash slurry output by the second iron removal mechanism, and then using the filter press pump to supply the material to the plate and frame diaphragm filter press, the temporary storage chamber can serve as a transfer and storage component, which facilitates the coordination of the difference in production cycle between the second iron removal mechanism and the plate and frame filter press.

[0031] According to some embodiments of the present invention, the mixing tank includes a fiberglass tank body, a stirring paddle disposed inside the fiberglass tank body, and a first motor for driving the stirring paddle to rotate.

[0032] The advantage of this invention is that by including a fiberglass tank body, a stirring paddle disposed within the fiberglass tank body, and a first motor driving the stirring paddle to rotate in the slurry mixing tank, the uniformity of the mixing in the slurry mixing tank can be improved through a reasonable arrangement of the tank structure.

[0033] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of a denitrification and iron removal system for aluminum ash and iron according to an embodiment of the present invention.

[0036] Figure 2 for Figure 1 The diagram shown is a schematic representation of the structure of the first iron removal mechanism.

[0037] Figure 3 for Figure 1 The diagram shown is a structural schematic of the mixing tank for preparing the slurry.

[0038] Figure 4 for Figure 1 The diagram shown is a schematic representation of the structure of the second iron removal mechanism;

[0039] Figure 5 for Figure 4 The side view shown.

[0040] Reference numerals: 100-First feed inlet, 110-First discharge outlet, 120-First magnetic rod assembly, 130-Second magnetic rod assembly, 140-Slurry mixing tank, 150-First magnetic rod assembly, 160-Second magnetic rod assembly, 170-First iron discharge chamber, 180-First transfer assembly, 190-Quantitative pump, 200-Second iron discharge chamber, 210-Second transfer assembly, 220-Plate and frame diaphragm filter press, 230-Temporary storage chamber, 240-Filter press pump, 250-Fiberglass tank body, 260-Agitator, 270-First motor. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] The following is in conjunction with the appendix Figure 1-5 This invention describes a denitrification and iron removal system for aluminum ash according to an embodiment of the present invention.

[0046] Reference Figure 1 The present invention aims to provide an embodiment of a denitrification aluminum ash and iron removal system.

[0047] In this embodiment, a denitrification aluminum ash and iron removal system mainly includes a first iron removal mechanism, a slurry mixing tank 140, a second iron removal mechanism, and a plate and frame diaphragm filter press 220.

[0048] Reference Figure 2The first iron removal mechanism has a first feed inlet 100 at the top and a first discharge outlet 110 at the bottom. The first iron removal mechanism includes a first magnetic rod group 120 and a second magnetic rod group 130 arranged vertically. The first magnetic rod group 120 and the second magnetic rod group 130 contact the aluminum ash powder passing from top to bottom in sequence to adsorb iron powder and weakly magnetic iron oxide powder in the aluminum ash powder.

[0049] Understandably, when aluminum ash powder enters the first iron removal mechanism from the first feed inlet 100, the aluminum ash powder falls downwards due to its own gravity. During the falling process, the first magnetic rod group 120 and the second magnetic rod group 130 can come into contact with the aluminum ash powder in sequence. Thus, the first iron removal mechanism can come into contact with the aluminum ash powder multiple times during the falling process, adsorbing iron powder and weakly magnetic iron oxide powder in the aluminum ash powder. This is beneficial for fully adsorbing and removing iron powder and weakly magnetic iron oxide powder from the aluminum ash powder, thereby improving the removal effect of iron components in the aluminum ash powder.

[0050] In some specific embodiments, the first iron removal mechanism further includes a first iron removal chamber 170 and a first transfer component 180. The first transfer component 180 is used to transfer the first magnetic rod group 120 and the second magnetic rod group 130 to the first iron removal chamber 170 to clean and discharge the iron-containing powder adhering to the first magnetic rod group 120 and the second magnetic rod group 130. This facilitates timely cleaning of the iron-containing powder adhering to the first magnetic rod group 120 and the second magnetic rod group 130, and avoids excessive iron-containing powder adhering to the first magnetic rod group 120 and the second magnetic rod group 130, which would affect the magnetic attraction and iron removal effect of the first magnetic rod group 120 and the second magnetic rod group 130 on aluminum ash powder.

[0051] Furthermore, at least two first magnetic rod groups 120 and at least two second magnetic rod groups 130 are provided. The first transfer assembly 180 is used to alternately transfer at least two first magnetic rod groups 120 to the first iron removal chamber 170 to clean and discharge iron-containing powder adhering to the first magnetic rod groups 120 and to alternately transfer at least two second magnetic rod groups 130 to the first iron removal chamber 170 to clean and discharge iron-containing powder adhering to the second magnetic rod groups 130. Thus, at least two first magnetic rod groups 120 and at least two second magnetic rod groups 130 can be alternately moved to the first iron removal chamber 170 to clean and discharge iron-containing powder, so that when the first magnetic rod groups 120 and the second magnetic rod groups 130 are cleaning and discharging iron-containing powder in the first iron removal chamber 170, at least one first magnetic rod group 120 and one second magnetic rod group 130 are contacting the aluminum ash powder to remove iron.

[0052] Specifically, the first magnetic rod group 120 has three units, and the second magnetic rod group 130 has three units.

[0053] In some specific embodiments, the magnetic forces of the first magnetic rod group 120 and the second magnetic rod group 130 are set differently, with the magnetic force of the first magnetic rod group 120 being less than that of the second magnetic rod group 130. This allows the iron-containing powder to be more evenly adsorbed onto the first magnetic rod group 120 and the second magnetic rod group 130, preventing all the iron-containing powder from adhering to the first magnetic rod group 120, which would result in excessive iron-containing powder adhering to the first magnetic rod group 120 and affecting the subsequent iron removal effect.

[0054] In some specific embodiments, the first iron removal mechanism further includes a third magnetic rod. The first magnetic rod group 120, the second magnetic rod group 130 and the third magnetic rod are arranged sequentially from top to bottom, so that the aluminum ash powder can pass through the first magnetic rod group 120, the second magnetic rod group 130 and the third magnetic rod in sequence during the falling process, thereby improving the iron removal effect of the first iron removal mechanism.

[0055] Furthermore, the first magnetic rod group 120 is provided with three units, the second magnetic rod group 130 is provided with three units, and the third magnetic rod is provided with three units. The first iron removal mechanism also includes a first iron removal chamber 170 and a first transfer component 180. The first transfer component 180 is used to alternately transfer the three first magnetic rod groups 120, the three second magnetic rod groups 130, and the three third magnetic rods to the first iron removal chamber 170 to clean and discharge the adhering iron-containing powder. Thus, on the one hand, the iron-containing powder adhering to the first magnetic rod group 120, the second magnetic rod group 130, and the third magnetic rod can be cleaned in a timely manner, and on the other hand, it is ensured that the first iron removal mechanism can continuously use the first magnetic rod group 120, the second magnetic rod group 130, and the third magnetic rod to magnetically remove iron from the aluminum ash powder.

[0056] In some specific embodiments, the magnetic forces of the first magnetic rod group 120, the second magnetic rod group 130, and the third magnetic rod are set differently, with the magnetic forces of the first magnetic rod group 120, the second magnetic rod group 130, and the third magnetic rod increasing sequentially. This allows the iron-containing powder to be more evenly adsorbed onto the first magnetic rod group 120, the second magnetic rod group 130, and the third magnetic rod, avoiding excessive iron-containing powder adhering to the first magnetic rod group 120, which would affect the subsequent iron removal effect.

[0057] The mixing tank 140 is used to receive aluminum ash powder output from the first discharge port 110 and to mix the aluminum ash powder into aluminum ash slurry.

[0058] Reference Figure 3 Specifically, the mixing tank 140 includes a fiberglass tank body 250, a stirring paddle 260 disposed inside the fiberglass tank body 250, and a first motor 270 for driving the stirring paddle 260 to rotate. Thus, by rationally arranging the structure of the mixing tank 140, it is beneficial to improve the mixing uniformity of the mixing tank 140.

[0059] In some specific embodiments, the mixing tank 140 mixes aluminum ash powder with water to form a fluid aluminum ash slurry with a solid-liquid ratio of 10-35%, so that the aluminum ash powder and water are fully mixed and dispersed evenly.

[0060] In some specific embodiments, a denitrification device can be installed between the first discharge port 110 and the slurry mixing tank 140. The denitrification device is used to remove nitrogen from the aluminum ash powder, thereby reducing the nitrogen element in the aluminum ash powder and thus improving the purity of the aluminum element in the aluminum ash powder.

[0061] Reference Figure 4 and Figure 5 The second iron removal mechanism is used to receive aluminum ash slurry from the mixing tank 140 and adsorb the iron component in the aluminum ash slurry. It includes a first magnetic rod group 150 and a second magnetic rod group 160 that are rotatably arranged. The first magnetic rod group 150 and the second magnetic rod group 160 are arranged sequentially along the conveying direction of the aluminum ash slurry. The first magnetic rod group 150 and the second magnetic rod group 160 rotate and stir to contact and adsorb the iron component in the aluminum ash slurry.

[0062] This embodiment includes a slurry mixing tank 140 and a second iron removal mechanism. The slurry mixing tank 140 receives aluminum ash powder output from the first outlet 110 and modulates the aluminum ash powder into aluminum ash slurry. The second iron removal mechanism receives the aluminum ash slurry from the slurry mixing tank 140 and adsorbs the iron components in the aluminum ash slurry. It can be understood that by modifying the aluminum ash powder output from the first iron removal mechanism into aluminum ash slurry, it is beneficial to improve the flowability of the iron components in the aluminum ash slurry. As a result, the iron components in the aluminum ash slurry are more easily adsorbed by the second iron removal mechanism, thereby making the iron removal of the aluminum ash slurry by the second iron removal mechanism more thorough.

[0063] In this embodiment, the second iron removal mechanism includes a first magnetic rod group 150 and a second magnetic rod group 160 that are rotatably arranged. The first magnetic rod group 150 and the second magnetic rod group 160 are arranged sequentially along the conveying direction of the aluminum ash slurry. The first magnetic rod group 150 and the second magnetic rod group 160 rotate and stir to contact and adsorb the iron components in the aluminum ash slurry. It can be understood that, on the one hand, the first magnetic rod group 150 and the second magnetic rod group 160 contact the aluminum ash slurry sequentially, which can adsorb the iron components in the aluminum ash slurry multiple times, which is beneficial to fully adsorb the iron components in the aluminum ash slurry. On the other hand, the rotational arrangement of the first magnetic rod group 150 and the second magnetic rod group 160 can increase the contact range between the first magnetic rod group 150 and the second magnetic rod group 160 and the aluminum ash slurry, so that the second iron removal mechanism can remove iron from the aluminum ash slurry more thoroughly.

[0064] In some specific embodiments, a metering pump 190 is provided between the slurry mixing tank 140 and the second iron removal mechanism. The metering pump 190 is used to meterly transport the prepared aluminum ash slurry in the slurry mixing tank 140 to the second iron removal mechanism, thereby making the feeding speed of the second iron removal mechanism more stable, which in turn helps to ensure the iron removal stability of the aluminum ash slurry by the second iron removal mechanism.

[0065] In some specific embodiments, the second iron removal mechanism further includes a second iron removal chamber 200 and a second transfer component 210. The second transfer component 210 is used to transfer the first magnetic rod group 150 and the second magnetic rod group 160 to the second iron removal chamber 200 to clean and remove the iron-containing components adhering to the first magnetic rod group 150 and the second magnetic rod group 160. This facilitates timely cleaning of the iron-containing components adhering to the first magnetic rod group 150 and the second magnetic rod group 160, and avoids excessive iron-containing components adhering to the first magnetic rod group 150 and the second magnetic rod group 160, which would affect the magnetic attraction and iron removal effect of the first magnetic rod group 150 and the second magnetic rod group 160 on the aluminum ash slurry.

[0066] Furthermore, at least two first magnetic rod groups 150 and at least two second magnetic rod groups 160 are provided. The second transfer assembly 210 is used to alternately transfer at least two first magnetic rod groups 150 to the second iron chamber 200 to clean and remove iron-containing components adhering to the first magnetic rod groups 150 and to alternately transfer at least two second magnetic rod groups 160 to the second iron chamber 200 to clean and remove iron-containing components adhering to the second magnetic rod groups 160. Thus, at least two first magnetic rod groups 150 and at least two second magnetic rod groups 160 can be alternately moved to the second iron chamber 200 to clean and remove iron-containing components, so that when the first magnetic rod groups 150 and the second magnetic rod groups 160 are cleaning and removing iron-containing components in the second iron chamber 200, at least one first magnetic rod group 150 and one second magnetic rod group 160 are contacting and removing iron from the aluminum ash components.

[0067] Specifically, the first magnetic rod group 150 has three units, and the second magnetic rod group 160 has three units.

[0068] In some specific embodiments, the second iron removal mechanism further includes a rotatably arranged third magnetic rod. The first magnetic rod group 150, the second magnetic rod group 160 and the third magnetic rod are arranged in sequence, so that the aluminum ash slurry can pass through the first magnetic rod group 150, the second magnetic rod group 160 and the third magnetic rod in sequence during the conveying process, thereby improving the iron removal effect of the second iron removal mechanism.

[0069] Furthermore, the first magnetic rod group 150 is provided with three units, the second magnetic rod group 160 is provided with three units, and the third magnetic rod is provided with three units. The second iron removal mechanism also includes a second iron chamber 200 and a second transfer component 210. The second transfer component 210 is used to alternately transfer the three first magnetic rod groups 150, the three second magnetic rod groups 160, and the three third magnetic rods to the second iron chamber 200 to clean and remove the adhering iron-containing components. Thus, on the one hand, the iron-containing components adhering to the first magnetic rod group 150, the second magnetic rod group 160, and the third magnetic rod can be cleaned in a timely manner. On the other hand, it ensures that the second iron removal mechanism can continuously use the first magnetic rod group 150, the second magnetic rod group 160, and the third magnetic rod to magnetically remove iron from the aluminum ash slurry.

[0070] For the plate and frame diaphragm filter press 220, the plate and frame diaphragm filter press 220 is used to receive the aluminum ash material output by the second iron removal mechanism and filter and dehydrate the aluminum ash material, thereby dehydrating the aluminum ash material after iron removal, which facilitates the packaging, transportation and use of the aluminum ash material after iron removal.

[0071] In some specific embodiments, a temporary storage chamber 230 is provided between the second iron removal mechanism and the plate and frame diaphragm filter press 220. The temporary storage chamber 230 is used to store the aluminum ash slurry after iron removal output by the second iron removal mechanism. A filter press pump 240 is provided between the temporary storage chamber 230 and the plate and frame diaphragm filter press 220. The filter press pump 240 is used to pump the aluminum ash slurry in the temporary storage chamber 230 to the plate and frame diaphragm filter press 220.

[0072] It is understandable that the temporary storage chamber 230 is used to store the aluminum ash slurry after iron removal output from the second iron removal mechanism, and then the filter press pump 240 is used to supply the material to the plate and frame diaphragm filter press 220, so that the temporary storage chamber 230 can serve as a transfer storage component, which facilitates the coordination of the difference in production cycle between the second iron removal mechanism and the plate and frame filter press.

[0073] This embodiment, by setting up a first iron removal mechanism, a slurry mixing tank 140, and a second iron removal mechanism, enables aluminum ash to undergo magnetic iron removal under both dry and wet conditions. This facilitates thorough iron removal of aluminum ash by the denitrification aluminum ash iron removal system, improves the removal effect of weakly magnetic iron elements, and promotes the high-value recycling of aluminum ash resources, resulting in good economic and social benefits.

[0074] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0076] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0077] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0078] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0079] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A denitrogenated aluminum dross iron removal system, characterized by, The application relates to a device for removing iron from aluminum ash powder, which comprises the following components: a first iron removal mechanism, which has a first feeding port (100) at the top and a first discharging port (110) at the bottom, and comprises a first magnetic rod group (120) and a second magnetic rod group (130) arranged in sequence from top to bottom, wherein the first magnetic rod group (120) and the second magnetic rod group (130) are in contact with aluminum ash powder passing from top to bottom in sequence to adsorb iron powder and weakly-magnetic iron oxide powder in the aluminum ash powder; a mixing and stirring tank (140) for receiving the aluminum ash powder discharged from the first discharging port (110) and mixing the aluminum ash powder into aluminum ash slurry; a second iron removal mechanism for receiving the aluminum ash slurry from the mixing and stirring tank (140) and adsorbing iron components in the aluminum ash slurry, which comprises a first magnetic rod group (150) and a second magnetic rod group (160) arranged in rotation, wherein the first magnetic rod group (150) and the second magnetic rod group (160) are arranged in sequence along the conveying direction of the aluminum ash slurry, and the first magnetic rod group (150) and the second magnetic rod group (160) rotate and stir to contact and adsorb the iron components in the aluminum ash slurry.

2. The denitrogenated aluminum dross iron removal system according to claim 1, wherein, The first iron removal mechanism further comprises a first iron discharge cabin (170) and a first transfer assembly (180), wherein the first transfer assembly (180) is used for transferring the first magnetic rod group (120) and the second magnetic rod group (130) to the first iron discharge cabin (170) to clean and discharge the iron-containing powder adhered to the first magnetic rod group (120) and the second magnetic rod group (130).

3. The denitrogenated aluminum dross iron removal system according to claim 2, characterized in that, The first magnetic rod group (120) is provided with at least two groups, the second magnetic rod group (130) is provided with at least two groups, and the first transfer assembly (180) is used for alternately transferring the at least two first magnetic rod groups (120) to the first iron discharge cabin (170) to clean and discharge the iron-containing powder adhered to the first magnetic rod group (120) and alternately transferring the at least two second magnetic rod groups (130) to the first iron discharge cabin (170) to clean and discharge the iron-containing powder adhered to the second magnetic rod group (130).

4. The denitrogenated aluminum dross iron removal system of claim 1, wherein, The magnetic forces of the first magnetic rod group (120) and the second magnetic rod group (130) are different, and the magnetic force of the first magnetic rod group (120) is smaller than that of the second magnetic rod group (130).

5. The denitrogenated aluminum dross iron removal system of claim 1, wherein, A quantitative pump (190) is arranged between the mixing and stirring tank (140) and the second iron removal mechanism, and the quantitative pump (190) is used for quantitatively conveying the aluminum ash slurry mixed in the mixing and stirring tank (140) to the second iron removal mechanism.

6. The denitrogenated aluminum dross iron removal system of claim 1, wherein, The second iron removal mechanism further comprises a second iron discharge cabin (200) and a second transfer assembly (210), wherein the second transfer assembly (210) is used for transferring the first magnetic rod group (150) and the second magnetic rod group (160) to the second iron discharge cabin (200) to clean and discharge the iron-containing components adhered to the first magnetic rod group (150) and the second magnetic rod group (160).

7. The denitrogenated aluminum dross iron removal system of claim 6, wherein, The first magnetic rod group (150) is provided at least two, the second magnetic rod group (160) is provided at least two, the second transfer assembly (210) is used for alternately transferring the at least two first magnetic rod groups (150) to the second iron removal cabin (200) to clean and discharge the iron-containing components adhered to the first magnetic rod group (150), and alternately transferring the at least two second magnetic rod groups (160) to the second iron removal cabin (200) to clean and discharge the iron-containing components adhered to the second magnetic rod group (160).

8. The denitrogenated aluminum dross iron removal system of claim 1, wherein, The plate and frame diaphragm filter press (220) is used for receiving the aluminum ash material output by the second iron removal mechanism and filtering and dewatering the aluminum ash material.

9. The denitrogenated aluminum dross iron removal system of claim 8, wherein, The second iron removal mechanism and the plate and frame diaphragm filter press (220) are provided with a temporary storage cabin (230) for storing the aluminum ash material output by the second iron removal mechanism, and a filter press pump (240) is arranged between the temporary storage cabin (230) and the plate and frame diaphragm filter press (220), and the filter press pump (240) is used for pumping the aluminum ash material in the temporary storage cabin (230) to the plate and frame diaphragm filter press (220).

10. The denitrogenated aluminum dross iron removal system of claim 1, wherein, The slurry mixing stirring tank (140) comprises a glass steel tank body (250), a stirring paddle (260) arranged in the glass steel tank body (250), and a first motor (270) for driving the stirring paddle (260) to rotate.

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