Aluminum profile production wastewater treatment device

Abstract

The invention relates to an aluminum profile production wastewater treatment device which comprises a rack, a treatment barrel is arranged on the rack, a plurality of acid adjusting reduction barrels are arranged on the inner wall of the treatment barrel in a surrounding mode, and a chromium-containing wastewater storage and transportation mechanism and an acid adjusting reduction storage and transportation mechanism are arranged on the treatment barrel and located above the acid adjusting reduction barrels respectively. A first liquid discharging mechanism is arranged on the acid adjusting reduction cylinder; the area of an unreacted area can be reduced when the precipitant is in contact with the trivalent chromium solution, sudden increase of the local PH value of the surface of the trivalent chromium solution can be prevented, convective mixing can be formed after the precipitant is in contact with the trivalent chromium solution, so that the precipitant is in uniform contact with the trivalent chromium solution, and the reaction rate is increased; the method can prevent a chromium hydroxide precipitate layer generated by reaction on the surface of the trivalent chromium solution from hindering diffusion and flow of a subsequent precipitant, and can enable the trivalent chromium solution and the precipitant to uniformly, fully and completely react to generate a chromium hydroxide precipitate.

Description

Technical Field

[0001] The invention relates to the field of industrial equipment, and in particular to a wastewater treatment device for aluminum profile production. Background Art

[0002] Aluminum profiles are aluminum alloy materials produced through the extrusion molding process. They are strip-shaped metal products with specific cross-sectional shapes and are widely used in construction, industry, transportation, electronics and other fields.

[0003] During the production process, aluminum profiles undergo a passivation treatment using a hexavalent chromium solution. This treatment creates a thicker, denser oxide film and improves the adhesion of subsequent powder coatings. This passivation treatment produces chromium-containing wastewater, which is highly toxic and carcinogenic, posing significant risks to humans and the environment. It is typically treated using aluminum profile production wastewater treatment equipment.

[0004] Existing aluminum profile production wastewater treatment equipment is unable to reduce the area of ​​unreacted areas when the precipitant contacts the trivalent chromium solution, prevent a sudden increase in the local pH value on the surface of the trivalent chromium solution, or generate convective mixing after the precipitant contacts the trivalent chromium solution to ensure uniform contact between the precipitant and the trivalent chromium solution and increase the reaction rate. It is impossible to prevent the formation of a chromium hydroxide precipitate layer on the surface of the trivalent chromium solution, which would hinder the diffusion and flow of the subsequent precipitant. It is impossible to allow the trivalent chromium solution and the precipitant to react evenly, fully, and completely to form a chromium hydroxide precipitate. It is impossible to prevent the local pH value of the trivalent chromium solution from suddenly rising or the chromium hydroxide precipitate that has been reacted from re-dissolving. It is impossible to allow the chromium hydroxide precipitate generated by the reaction to continue to grow larger and denser. When filtering the filtrate and the chromium hydroxide precipitate, the filtrate cannot pass through quickly, continuously and efficiently, and when filtering the filtrate and the chromium hydroxide precipitate, the chromium hydroxide precipitate cannot be continuously moved without being adhered and fixed.

[0005] The purpose of this invention is to design an aluminum profile production wastewater treatment device to solve the above problems in the prior art. Summary of the Invention

[0006] In response to the problems existing in the above-mentioned prior art, the present invention provides an aluminum profile production wastewater treatment device that can effectively solve at least one of the problems existing in the above-mentioned prior art.

[0007] The technical solution of the present invention is: An aluminum profile production wastewater treatment device, comprising: A frame is provided on the frame, wherein a treatment barrel is provided on the inner wall of the treatment barrel, and a plurality of acid adjustment and reduction cylinders are provided around the inner wall of the treatment barrel. A chromium-containing wastewater storage and transportation mechanism and an acid adjustment and reduction storage and transportation mechanism are respectively provided on the treatment barrel and above the acid adjustment and reduction cylinders. A first liquid discharge mechanism is provided on the acid adjustment and reduction cylinders; A sedimentation cylinder is provided in the processing barrel and below the plurality of first liquid discharge mechanisms; a lifting and tilting mechanism is provided between the sedimentation cylinder and the processing barrel; a single-inlet and multiple-outlet seat is provided above the sedimentation cylinder; a precipitant storage and delivery mechanism is provided on the processing barrel and above the single-inlet and multiple-outlet seat; a disturbance mechanism is provided on the bottom end surface of the single-inlet and multiple-outlet seat and inside the sedimentation barrel; A plastic filter screen is provided on the outside of the bottom end of the sedimentation cylinder, a demixing mechanism is provided on the bottom end surface of the sedimentation cylinder and is located inside the plastic filter screen, and a second liquid discharge mechanism is provided on the bottom end surface of the processing barrel; The disturbance mechanism is used to continuously generate downward disturbance while the precipitant delivered by the precipitant storage and delivery mechanism is continuously and evenly distributed at several locations on the surface of the trivalent chromium solution in the precipitation cylinder by the one-inlet and multiple-outlet seat, so as to allow the precipitant evenly distributed at several locations on the surface of the trivalent chromium solution in the precipitation cylinder to flow downward simultaneously, and to allow the trivalent chromium solution at the bottom of the precipitation cylinder to first flow toward the inner wall of the precipitation cylinder and then flow upward along the inner wall of the precipitation cylinder, so as to allow the chromium hydroxide precipitate generated by the reaction to flow and collide in the precipitation cylinder; The lifting and tilting mechanism is used to drive the sedimentation drum to rise and fall back and forth several times after the disturbance mechanism stops forming the downward disturbance, so as to continuously generate a downward impact force during the descent of the sedimentation drum to gradually compact the generated chromium hydroxide precipitate, and to drive the chromium hydroxide precipitate to collide with each other and gradually grow larger during the ascent of the sedimentation drum; The lifting and tilting mechanism is used to drive the sedimentation drum to tilt in different directions when the plastic filter screen receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, so that the filtrate can pass through quickly, continuously and efficiently when the plastic filter screen receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, and the chromium hydroxide precipitate can continue to move on the plastic filter screen when the plastic filter screen receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate.

[0008] Furthermore, the chromium-containing wastewater storage and transportation mechanism includes a chromium-containing wastewater storage tank, which is arranged on the top surface of the treatment barrel; a chromium-containing wastewater pipe with a solenoid valve, one end of which is connected to the chromium-containing wastewater storage tank, and the other end of which passes through the interior of the treatment barrel and is located above the acid reduction cylinder.

[0009] Further, the acid-adjusting and reducing storage mechanism comprises an acid-adjusting storage box arranged on the top end surface of the treatment barrel; an acid-adjusting delivery pipe with a solenoid valve, one end of the acid-adjusting delivery pipe being communicated with the acid-adjusting storage box, and the other end of the acid-adjusting delivery pipe penetrating into the interior of the treatment barrel and being located above the acid-adjusting and reducing cylinder.

[0010] Further, the discharging mechanism is an electric full-bore ball valve, the first liquid discharging mechanism is a first solenoid valve pipe, and the second liquid discharging mechanism is a second solenoid valve pipe.

[0011] Further, the one-in-multiple-out seat is connected with the precipitation cylinder through a plurality of connecting rods.

[0012] Further, the precipitant storage and delivery mechanism comprises a precipitant storage box arranged on the top end surface of the treatment barrel; a precipitant delivery pipe with a solenoid valve, one end of the precipitant delivery pipe being communicated with the precipitant storage box, and the other end of the precipitant delivery pipe penetrating into the interior of the treatment barrel and being located directly above the inlet of the one-in-multiple-out seat.

[0013] Further, the disturbance mechanism comprises a first rotating motor arranged in the bottom end interior of the one-in-multiple-out seat, a rotating shaft of the first rotating motor penetrating out of the one-in-multiple-out seat, and a disturbance frame arranged on the rotating shaft of the first rotating motor and located in the precipitation cylinder.

[0014] Further, the lifting and tilting mechanism comprises a plurality of lifting and tilting wires, one end of each of the lifting and tilting wires being arranged on the top end surface of the precipitation cylinder and located between two adjacent acid-adjusting and reducing cylinders, a second rotating motor being arranged on the other end of each of the lifting and tilting wires and connected with the other end of each of the lifting and tilting wires, and a limiting guide groove wheel being arranged between the second rotating motor and the other end of each of the lifting and tilting wires.

[0015] Further, the acid-adjusting and reducing cylinder is provided with a stirring mechanism, the stirring mechanism being used for continuously starting during the process that the acid-adjusting and reducing cylinder receives the acid solution, so that the chromium-containing wastewater is quickly adjusted to be acidic by the acid solution, and the stirring mechanism being used for continuously starting during the process that the acid-adjusting and reducing cylinder receives the reducing agent, so that the trivalent chromium solution is sufficiently generated by the reaction.

[0016] Further, the stirring mechanism comprises a stirring frame arranged in the interior of the acid-adjusting and reducing cylinder, and a stirring rotating motor arranged on the bottom end surface of the acid-adjusting and reducing cylinder and connected with the stirring frame.

[0017] Therefore, the present application provides the following effects and / or advantages: 1) The chromium-containing wastewater storage and transportation mechanism is used to store pretreated chromium-containing wastewater, and is used to transport a predetermined amount of chromium-containing wastewater to the acid-regulating and reducing cylinder at a predetermined flow rate; the acid-regulating and reducing storage and transportation mechanism is used to store an acidic solution and a reducing agent, wherein the acidic solution is sulfuric acid or hydrochloric acid, and the reducing agent is sodium sulfite or sodium metabisulfite. The acid-regulating and reducing storage and transportation mechanism is used to transport the acidic solution to the acid-regulating and reducing cylinder at a predetermined flow rate while the chromium-containing wastewater storage and transportation mechanism is transporting the chromium-containing wastewater to the acid-regulating and reducing cylinder. The acid-regulating and reducing storage and transportation mechanism is used to transport a predetermined amount of reducing agent to the acid-regulating and reducing cylinder after the acidic solution is transported to the acid-regulating and reducing cylinder and a predetermined time has passed.

[0018] The acid adjustment and reduction cylinder is used to first receive chromium-containing wastewater, then receive an acidic solution, and then receive a reducing agent, so that the chromium-containing wastewater is first adjusted to an acidic pH by the acidic solution, and then reacts with the reducing agent to generate a trivalent chromium solution; the first liquid discharge mechanism is used to transfer the trivalent chromium solution generated in the acid adjustment and reduction cylinder to the sedimentation cylinder after the acid adjustment and reduction storage and transportation mechanism has completed the transportation of the reducing agent to the acid adjustment and reduction cylinder and a predetermined time has passed; the precipitant storage and transportation mechanism is used to transfer a predetermined amount of precipitant to the one-inlet and multiple-outlet seat at a predetermined flow rate after several first liquid discharge mechanisms have transported the trivalent chromium solutions in several acid adjustment and reduction cylinders to the sedimentation cylinder. The precipitant is sodium hydroxide or sodium carbonate.

[0019] The one-inlet-multiple-outlet seat is used to continuously and evenly distribute the precipitant delivered by the precipitant storage and delivery mechanism to several positions on the surface of the trivalent chromium solution in the precipitation cylinder, so as to increase the contact area between the precipitant and the trivalent chromium solution in the precipitation cylinder at the same time when the precipitant contacts the trivalent chromium solution in the precipitation cylinder, thereby reducing the area of ​​the unreacted region when the precipitant contacts the trivalent chromium solution in the precipitation cylinder, thereby preventing a sudden increase in the local pH value on the surface of the trivalent chromium solution when the precipitant contacts the trivalent chromium solution in the precipitation cylinder, and allowing the precipitant at several positions to diffuse and flow to the surroundings at the same time after the precipitant contacts the trivalent chromium solution in the precipitation cylinder, thereby forming convective mixing after the precipitant contacts the trivalent chromium solution in the precipitation cylinder, allowing the precipitant to contact the trivalent chromium solution evenly and increasing the reaction rate.

[0020] The disturbance mechanism is used to continuously form a downward disturbance during the period when the precipitant delivered by the precipitant storage and delivery mechanism is continuously evenly distributed at several positions on the surface of the trivalent chromium solution in the sedimentation cylinder by the one-inlet and multiple-outlet seat, so as to allow the precipitant evenly distributed at several positions on the surface of the trivalent chromium solution in the sedimentation cylinder to flow downward at the same time, and allow the trivalent chromium solution at the bottom of the sedimentation cylinder to flow toward the inner wall of the sedimentation cylinder first and then flow upward along the inner wall of the sedimentation cylinder, thereby preventing the trivalent chromium solution in the sedimentation cylinder from reacting to form a chromium hydroxide precipitate layer and hindering the subsequent diffusion flow of the precipitant, so that the trivalent chromium solution in the sedimentation cylinder and the precipitant react evenly, fully and completely to form a chromium hydroxide precipitate, thereby preventing the local pH value of the trivalent chromium solution in the sedimentation cylinder from suddenly rising or the chromium hydroxide precipitate that has been reacted from re-dissolving, so that the chromium hydroxide precipitate that has been reacted can flow and collide in the sedimentation cylinder, so that the chromium hydroxide precipitate that has been reacted can continue to grow larger and denser.

[0021] The lifting and tilting mechanism is used to drive the sedimentation drum to rise and fall back and forth several times after the disturbance mechanism stops forming the downward disturbance, so as to continuously generate a downward impact force during the descent of the sedimentation drum to gradually compact the generated chromium hydroxide precipitate, and to drive the chromium hydroxide precipitates to collide and contact with each other during the ascent of the sedimentation drum to gradually grow larger, thereby making the chromium hydroxide precipitate generated by the reaction larger and denser again; The demixing mechanism is used to open and deliver the mixture in the sedimentation drum to the plastic filter at a predetermined flow rate after the lifting and tilting mechanism drives the sedimentation drum to rise and fall back several times; the plastic filter is used to receive and filter the mixture delivered by the demixing mechanism at the predetermined flow rate; The lifting and tilting mechanism is used to drive the sedimentation drum to tilt in different directions when the plastic filter receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, so that the filtrate can pass quickly, continuously and efficiently when the plastic filter receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, thereby preventing the mixture from gradually accumulating on the plastic filter and causing the filtration efficiency and quality of the plastic filter to gradually decrease, and allowing the chromium hydroxide precipitate to continue to move on the plastic filter when the plastic filter receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, thereby preventing the chromium hydroxide precipitate from adhering to and fixing on the plastic filter and causing the plastic filter to be blocked, thereby reducing the chromium hydroxide precipitate from interfering with the filtering effect of the subsequent mixture by the plastic filter, so that the mixture received by the plastic filter can be fully and completely filtered; the second liquid discharge mechanism is used to discharge the filtrate passing through the plastic filter to the outside of the treatment barrel.

[0022] In summary: the area of ​​the unreacted region can be reduced when the precipitant contacts the trivalent chromium solution, and a sudden increase in the local pH value on the surface of the trivalent chromium solution can be prevented; convection mixing can be formed after the precipitant contacts the trivalent chromium solution, so that the precipitant and the trivalent chromium solution are in uniform contact and the reaction rate is increased; the generation of a chromium hydroxide precipitate layer on the surface of the trivalent chromium solution that hinders the subsequent diffusion and flow of the precipitant can be prevented; the trivalent chromium solution and the precipitant can be uniformly, fully, and completely reacted to generate a chromium hydroxide precipitate; a sudden increase in the local pH value of the trivalent chromium solution or the redissolution of the generated chromium hydroxide precipitate can be prevented; and the generated chromium hydroxide precipitate can be continuously enlarged and dense; the filtrate can be allowed to pass quickly, continuously, and efficiently when filtering the filtrate and the chromium hydroxide precipitate; and the chromium hydroxide precipitate can be allowed to continuously move without adhesion and fixation when filtering the filtrate and the chromium hydroxide precipitate.

[0023] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0024] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 To correspond Figure 1 sectional view of .

[0027] Figure 3 To correspond Figure 1 Schematic diagram of the structure after hiding the processing bucket.

[0028] Figure 4 It is a structural schematic diagram of the one-inlet and multiple-outlet seat in the present invention.

[0029] Description of reference numerals: Frame 1, treatment barrel 2, acid adjustment and reduction cylinder 3, sedimentation cylinder 4, one-inlet and multiple-outlet seat 5, plastic filter 6, chromium-containing wastewater storage box 7, chromium-containing wastewater pipeline 8, acid adjustment storage box 9, acid adjustment pipeline 10, reduction storage box 11, reduction pipeline 12, electric full-bore ball valve 13, first solenoid valve tube 14, second solenoid valve tube 15, connecting rod 16, precipitant storage box 17, precipitant delivery pipe 18, first rotating motor 19, disturbance frame 20, lifting and lowering tilt line 21, second rotating motor 22, limiting guide groove wheel 23, stirring frame 24, stirring and rotating motor 25. DETAILED DESCRIPTION

[0030] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the embodiments and the accompanying drawings: refer to Figure 1-4 , an aluminum profile production wastewater treatment device, comprising: A frame 1 is provided with a treatment barrel 2, and a plurality of acid adjustment and reduction cylinders 3 are provided around the inner wall of the treatment barrel 2. A chromium-containing wastewater storage and transportation mechanism and an acid adjustment and reduction storage and transportation mechanism are respectively provided on the treatment barrel 2 and above the acid adjustment and reduction cylinders 3. A first liquid discharge mechanism is provided on the acid adjustment and reduction cylinders 3; A sedimentation cylinder 4 is provided in the processing barrel 2 and below the plurality of the first liquid discharge mechanisms. A lifting and tilting mechanism is provided between the sedimentation cylinder 4 and the processing barrel 2. A single-inlet and multiple-outlet seat 5 is provided above the sedimentation cylinder 4. A precipitant storage and transportation mechanism is provided on the processing barrel 2 and above the single-inlet and multiple-outlet seat 5. A disturbance mechanism is provided on the bottom end surface of the single-inlet and multiple-outlet seat 5 and inside the sedimentation cylinder 4. A plastic filter screen 6 is provided on the outside of the bottom end of the sedimentation cylinder 4, a mixing removal mechanism is provided on the bottom end surface of the sedimentation cylinder 4 and is located inside the plastic filter screen 6, and a second liquid discharge mechanism is provided on the bottom end surface of the treatment barrel 2; The chromium-containing wastewater storage and transportation mechanism is used to store pretreated chromium-containing wastewater, and the chromium-containing wastewater storage and transportation mechanism is used to transport a predetermined amount of chromium-containing wastewater to the acid-regulating and reducing cylinder 3 at a predetermined flow rate; the acid-regulating and reducing storage and transportation mechanism is used to store an acidic solution and a reducing agent, the acidic solution is sulfuric acid or hydrochloric acid, and the reducing agent is sodium sulfite or sodium metabisulfite. The acid-regulating and reducing storage and transportation mechanism is used to transport the acidic solution to the acid-regulating and reducing cylinder 3 at a predetermined flow rate during the period when the chromium-containing wastewater storage and transportation mechanism transports the chromium-containing wastewater to the acid-regulating and reducing cylinder 3. The acid-regulating and reducing storage and transportation mechanism is used to transport a predetermined amount of reducing agent to the acid-regulating and reducing cylinder 3 after the acidic solution is transported to the acid-regulating and reducing cylinder 3 and a predetermined time has passed; The acid-regulating and reducing cylinder 3 is used to first receive chromium-containing wastewater, then receive an acidic solution, and then receive a reducing agent, so that the chromium-containing wastewater is first adjusted to an acidic pH by the acidic solution, and then reacts with the reducing agent to generate a trivalent chromium solution; the first liquid discharge mechanism is used to deliver the trivalent chromium solution generated in the acid-regulating and reducing cylinder 3 to the sedimentation cylinder 4 after the acid-regulating and reducing storage and transportation mechanism has delivered the reducing agent to the acid-regulating and reducing cylinder 3 and a predetermined time has passed; the precipitant storage and transportation mechanism is used to deliver a predetermined amount of precipitant to the one-inlet and multiple-outlet seat 5 at a predetermined flow rate after the trivalent chromium solutions in the acid-regulating and reducing cylinders 3 are delivered to the sedimentation cylinder 4 by the first liquid discharge mechanisms; the precipitant is sodium hydroxide or sodium carbonate. The one-inlet-multiple-outlet seat 5 is used to continuously and evenly distribute the precipitant delivered by the precipitant storage and delivery mechanism to several positions on the surface of the trivalent chromium solution in the precipitation cylinder 4, so as to increase the contact area between the precipitant and the trivalent chromium solution in the precipitation cylinder 4 at the same time when the precipitant contacts the trivalent chromium solution in the precipitation cylinder 4, thereby reducing the area of ​​the unreacted region when the precipitant contacts the trivalent chromium solution in the precipitation cylinder 4, thereby preventing the local pH value on the surface of the trivalent chromium solution from suddenly rising when the precipitant contacts the trivalent chromium solution in the precipitation cylinder 4, and allowing the precipitant at several positions to diffuse and flow to the surrounding area at the same time after the precipitant contacts the trivalent chromium solution in the precipitation cylinder 4, thereby forming convective mixing after the precipitant contacts the trivalent chromium solution in the precipitation cylinder 4, allowing the precipitant and the trivalent chromium solution to be evenly contacted and increasing the reaction rate; The disturbance mechanism is used to continuously form a downward disturbance during the period when the one-inlet and multiple-outlet seat 5 continuously and evenly distributes the precipitant transported by the precipitant storage and transportation mechanism to several positions on the surface of the trivalent chromium solution in the sedimentation cylinder 4, so as to allow the precipitant evenly distributed at several positions on the surface of the trivalent chromium solution in the sedimentation cylinder 4 to flow downward at the same time, and allow the trivalent chromium solution at the bottom of the sedimentation cylinder 4 to first flow toward the inner wall of the sedimentation cylinder 4 and then flow upward along the inner wall of the sedimentation cylinder 4, thereby preventing the trivalent chromium solution in the sedimentation cylinder 4 from reacting to form a chromium hydroxide precipitate layer and hindering the subsequent diffusion flow of the precipitant, so that the trivalent chromium solution in the sedimentation cylinder 4 and the precipitant react evenly, fully and completely to form a chromium hydroxide precipitate, thereby preventing the local pH value of the trivalent chromium solution in the sedimentation cylinder 4 from suddenly rising or the chromium hydroxide precipitate that has reacted to be generated from being redissolved, so that the chromium hydroxide precipitate that has reacted to be generated can flow and collide in the sedimentation cylinder 4, so that the chromium hydroxide precipitate generated by the reaction can continue to grow larger and denser; The lifting and tilting mechanism is used to drive the sedimentation drum 4 to rise and fall back and forth several times after the disturbance mechanism stops forming the downward disturbance, so as to continuously generate a downward impact force during the descent of the sedimentation drum 4 to make the generated chromium hydroxide precipitate gradually dense, and to drive the chromium hydroxide precipitates to collide with each other and gradually grow larger during the ascent of the sedimentation drum 4, so that the chromium hydroxide precipitate generated by the reaction becomes larger and denser again; The demixing mechanism is used to open and deliver the mixture in the sedimentation drum 4 to the plastic filter 6 at a predetermined flow rate after the lifting and tilting mechanism drives the sedimentation drum 4 to rise and fall back several times; the plastic filter 6 is used to receive and filter the mixture delivered by the demixing mechanism at a predetermined flow rate; The lifting and tilting mechanism is used to drive the sedimentation drum 4 to tilt in different directions when the plastic filter 6 receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, so that the filtrate can pass quickly, continuously and efficiently when the plastic filter 6 receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, thereby preventing the mixture from gradually accumulating on the plastic filter 6 and causing the filtration efficiency and quality of the plastic filter 6 to gradually decrease, so that the chromium hydroxide precipitate can continue to move on the plastic filter 6 when the plastic filter 6 receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, thereby preventing the chromium hydroxide precipitate from adhering to and fixing on the plastic filter 6 and causing the plastic filter 6 to be blocked, thereby reducing the chromium hydroxide precipitate from interfering with the filtering effect of the subsequent mixture by the plastic filter 6, so that the mixture received by the plastic filter 6 can be fully and completely filtered; the second liquid discharge mechanism is used to discharge the filtrate passing through the plastic filter 6 to the outside of the treatment barrel 2.

[0031] The chromium-containing wastewater storage and transportation mechanism includes a chromium-containing wastewater storage tank 7, which is arranged on the top surface of the treatment barrel 2; a chromium-containing wastewater delivery pipe 8 with a solenoid valve, one end of which is connected to the chromium-containing wastewater storage tank 7, and the other end of which passes through the interior of the treatment barrel 2 and is located above the acid reduction cylinder 3.

[0032] The acid adjustment and reduction storage and transportation mechanism includes an acid adjustment storage box 9, which is arranged on the top surface of the treatment barrel 2; an acid adjustment pipe 10 with a solenoid valve, one end of which is connected to the acid adjustment storage box 9, and the other end of which passes through the interior of the treatment barrel 2 and is located above the acid adjustment and reduction cylinder 3; a reduction storage box 11, which is arranged on the top surface of the treatment barrel 2; and a reduction pipe 12 with a solenoid valve, one end of which is connected to the reduction storage box 11, and the other end of which passes through the interior of the treatment barrel 2 and is located above the acid adjustment and reduction cylinder 3.

[0033] The de-mixing mechanism is an electric full-bore ball valve 13 , the first liquid discharge mechanism is a first solenoid valve tube 14 , and the second liquid discharge mechanism is a second solenoid valve tube 15 .

[0034] The one-inlet-multiple-outlet seat 5 is connected to the sedimentation cylinder 4 via a plurality of connecting rods 16 .

[0035] The precipitant storage and transportation mechanism includes a precipitant storage box 17, which is arranged on the top surface of the processing barrel 2; a precipitant delivery pipe 18 with a solenoid valve, one end of the precipitant delivery pipe 18 is connected to the precipitant storage box 17, and the other end of the precipitant delivery pipe 18 passes through the interior of the processing barrel 2 and is located directly above the inlet of the one-inlet and multiple-outlet seat 5.

[0036] The disturbance mechanism includes a first rotating motor 19, which is arranged inside the bottom end of the one-inlet and multiple-outlet seat 5. The rotating shaft of the first rotating motor 19 passes through the one-inlet and multiple-outlet seat 5. A disturbance frame 20 is arranged on the rotating shaft of the first rotating motor 19 and located inside the sedimentation cylinder 4.

[0037] The lifting and tilting mechanism includes several lifting and tilting lines 21, one end of the lifting and tilting line 21 is arranged on the top surface of the sedimentation cylinder 4 and is located between two adjacent acid adjustment and reduction cylinders 3, and the inner top surface of the processing barrel 2 is provided with a second rotating motor 22 connected to the other end of the lifting and tilting line 21, and the second rotating motor 22 is connected to the other end of the lifting and tilting line 21 through a limiting guide groove wheel 23.

[0038] The acid adjustment and reduction cylinder 3 is provided with a stirring mechanism, which is used to be continuously started while the acid adjustment and reduction cylinder 3 receives the acidic solution, so that the chromium-containing wastewater is quickly adjusted to an acidic pH by the acidic solution; the stirring mechanism is used to be continuously started while the acid adjustment and reduction cylinder 3 receives the reducing agent, so as to fully react and generate a trivalent chromium solution.

[0039] The stirring mechanism includes a stirring frame 24, which is disposed inside the acid-adjusting and reducing cylinder 3. The bottom end surface of the acid-adjusting and reducing cylinder 3 is provided with a stirring and rotating motor 25 connected to the stirring frame 24. A sealing ring is provided between the rotating shaft of the stirring and rotating motor 25 and the acid-adjusting and reducing cylinder 3. The components of the aluminum profile production wastewater treatment device are treated for corrosion. The plastic filter 6 is detachably connected to the sedimentation cylinder 4. The outer surface of the treatment barrel 2 is provided with an opening and closing door. After opening the opening and closing door, the plastic filter 6 can be removed to clean the chromium hydroxide precipitate in the plastic filter 6.

[0040] It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claim. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third etc. does not indicate any order. These words may be interpreted as names.

[0041] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0042] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

Claims

1. A wastewater treatment device for aluminum profile production, characterized by: include: A frame (1) is provided with a treatment barrel (2) on the frame (1), a plurality of acid adjustment and reduction cylinders (3) are provided around the inner wall of the treatment barrel (2), a chromium-containing wastewater storage and transportation mechanism and an acid adjustment and reduction storage and transportation mechanism are provided on the treatment barrel (2) and above the acid adjustment and reduction cylinder (3), and a first liquid discharge mechanism is provided on the acid adjustment and reduction cylinder (3); A sedimentation cylinder (4) is provided in the processing barrel (2) and below the plurality of first liquid discharge mechanisms; a lifting and tilting mechanism is provided between the sedimentation cylinder (4) and the processing barrel (2); a one-inlet and multiple-outlet seat (5) is provided above the sedimentation cylinder (4); a precipitant storage and delivery mechanism is provided on the processing barrel (2) and above the one-inlet and multiple-outlet seat (5); a disturbance mechanism is provided on the bottom end surface of the one-inlet and multiple-outlet seat (5) and inside the sedimentation barrel (4); A plastic filter screen (6) is provided on the outside of the bottom end of the sedimentation cylinder (4); a mixing removal mechanism is provided on the bottom end surface of the sedimentation cylinder (4) and is located inside the plastic filter screen (6); and a second liquid discharge mechanism is provided on the bottom end surface of the treatment barrel (2); The disturbance mechanism is used to continuously form a downward disturbance during the period when the precipitant transported by the precipitant storage and transport mechanism is continuously evenly distributed at several positions on the surface of the trivalent chromium solution in the precipitation cylinder (4) by the one-inlet and multiple-outlet seat (5), so as to allow the precipitant evenly distributed at several positions on the surface of the trivalent chromium solution in the precipitation cylinder (4) to flow downward at the same time, and to allow the trivalent chromium solution at the bottom of the precipitation cylinder (4) to flow toward the inner wall of the precipitation cylinder (4) first and then flow upward along the inner wall of the precipitation cylinder (4), so as to allow the chromium hydroxide precipitate generated by the reaction to flow and collide in the precipitation cylinder (4); The lifting and tilting mechanism is used to drive the sedimentation drum (4) to rise and fall back and forth several times after the disturbance mechanism stops forming the downward disturbance, so as to continuously generate a downward impact force during the descent of the sedimentation drum (4) to make the generated chromium hydroxide precipitate gradually dense, and to drive the chromium hydroxide precipitates to collide with each other and gradually grow larger during the ascent of the sedimentation drum (4); The lifting and tilting mechanism is used to drive the sedimentation drum (4) to tilt in different directions when the plastic filter (6) receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, so that the filtrate can pass through quickly, continuously and efficiently when the plastic filter (6) receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate, and the chromium hydroxide precipitate can be continuously moved on the plastic filter (6) when the plastic filter (6) receives and filters the mixture delivered by the demixing mechanism at a predetermined flow rate.

2. The aluminum profile production wastewater treatment device according to claim 1, characterized in that: The chromium-containing wastewater storage and transportation mechanism comprises a chromium-containing wastewater storage tank (7) arranged on the top surface of the treatment barrel (2); a chromium-containing wastewater delivery pipe (8) with a solenoid valve, one end of the chromium-containing wastewater delivery pipe (8) being connected to the chromium-containing wastewater storage tank (7), and the other end of the chromium-containing wastewater delivery pipe (8) passing through the interior of the treatment barrel (2) and being located above the acid-regulating reduction cylinder (3).

3. The aluminum profile production wastewater treatment device according to claim 1, characterized in that: The acid adjustment and reduction storage and transportation mechanism comprises an acid adjustment storage box (9) arranged on the top surface of the treatment barrel (2); an acid adjustment delivery pipe (10) with a solenoid valve, one end of the acid adjustment delivery pipe (10) being connected to the acid adjustment storage box (9), and the other end of the acid adjustment delivery pipe (10) passing through the interior of the treatment barrel (2) and being located above the acid adjustment and reduction cylinder (3); a reduction storage box (11) arranged on the top surface of the treatment barrel (2); and a reduction delivery pipe (12) with a solenoid valve, one end of the reduction delivery pipe (12) being connected to the reduction storage box (11), and the other end of the reduction delivery pipe (12) passing through the interior of the treatment barrel (2) and being located above the acid adjustment and reduction cylinder (3).

4. The aluminum profile production wastewater treatment device according to claim 1, characterized in that: The demixing mechanism is an electric full-bore ball valve (13), the first liquid discharge mechanism is a first electromagnetic valve tube (14), and the second liquid discharge mechanism is a second electromagnetic valve tube (15).

5. The aluminum profile production wastewater treatment device according to claim 1, characterized in that: The one-inlet-multiple-outlet seat (5) is connected to the sedimentation cylinder (4) via a plurality of connecting rods (16).

6. The aluminum profile production wastewater treatment device according to claim 1, characterized in that: The precipitant storage and delivery mechanism comprises a precipitant storage box (17) arranged on the top surface of the treatment barrel (2); a precipitant delivery pipe (18) with a solenoid valve, one end of the precipitant delivery pipe (18) being connected to the precipitant storage box (17), and the other end of the precipitant delivery pipe (18) passing through the interior of the treatment barrel (2) and being located directly above the inlet of the one-inlet-multiple-outlet seat (5).

7. The aluminum profile production wastewater treatment device according to claim 1, characterized in that: The disturbance mechanism includes a first rotating motor (19) which is arranged inside the bottom end of the one-inlet and multiple-outlet seat (5); a rotating shaft of the first rotating motor (19) passes through the one-inlet and multiple-outlet seat (5); and a disturbance frame (20) is arranged on the rotating shaft of the first rotating motor (19) and located inside the sedimentation cylinder (4).

8. The aluminum profile production wastewater treatment device according to claim 1, characterized in that: The lifting and tilting mechanism comprises a plurality of lifting and tilting lines (21), one end of each lifting and tilting line (21) being arranged on the top end surface of the sedimentation cylinder (4) and being located between two adjacent acid-regulating and reducing cylinders (3), and a second rotating motor (22) connected to the other end of each lifting and tilting line (21) being arranged on the inner top end surface of the treatment barrel (2), and the second rotating motor (22) being connected to the other end of each lifting and tilting line (21) via a limiting guide groove wheel (23).

9. The aluminum profile production wastewater treatment device according to any one of claims 1 to 8, characterized in that: The acid-adjusting and reducing cylinder (3) is provided with a stirring mechanism, and the stirring mechanism is used to be continuously started during the period when the acid-adjusting and reducing cylinder (3) receives the acidic solution, so that the chromium-containing wastewater is quickly adjusted to an acidic pH by the acidic solution; The stirring mechanism is used to continuously start during the period when the acid adjustment reduction cylinder (3) receives the reducing agent, so as to fully react and generate a trivalent chromium solution.

10. The aluminum profile production wastewater treatment device according to claim 9, characterized in that: The stirring mechanism comprises a stirring frame (24) arranged inside the acid-adjusting and reducing cylinder (3); a stirring and rotating motor (25) connected to the stirring frame (24) is provided on the bottom end surface of the acid-adjusting and reducing cylinder (3).

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