Treatment device for waste alkali liquor of pot film

Abstract

The treatment device comprises a mounting base, an aeration part and a collection part, the aeration part comprises a cylinder, a piston, an eccentric disc assembly and a driving part, the cylinder is of a hollow cylindrical structure with one end open, the piston is located in the cylinder and is in sliding sealing fit with the cylinder, and the eccentric disc assembly is arranged in the cylinder; a connecting rod is arranged between the eccentric disc assembly and the piston, one end of the connecting rod is hinged to the piston, the other end of the connecting rod is hinged to the eccentric position of the eccentric disc assembly, and the driving piece is used for driving the eccentric disc assembly to rotate. The collecting component is provided with a liquid inlet and a liquid outlet, a liquid guide pipe is arranged between the liquid outlet and the air inlet pipe, one end of the liquid guide pipe is communicated with the liquid outlet, and the other end is communicated with the air inlet pipe. The invention aims to solve the technical problem that aluminum hydroxide suspension precipitates at the bottom of equipment and is difficult to clean.

Description

Technical Field

[0001] The invention belongs to the technical field of waste liquid treatment, and in particular relates to a device for treating waste alkali liquid from film boiling. Background Art

[0002] Waste alkali liquid from film making is produced during the process of making molds (or boiling molds, foaming molds) in the production of aluminum profiles. There are usually acid-base neutralization method, aluminum hydroxide crystallization method and carbonation decomposition method to treat waste alkali liquid from film making. Among them, the aluminum hydroxide crystallization method is favored because it can recycle some aluminum resources. The aluminum hydroxide crystallization method adjusts the pH value of the waste liquid or adds a crystallization agent to precipitate aluminum ions in the form of aluminum hydroxide. After precipitation, aluminum hydroxide will be suspended in the waste alkali liquid. It can be precipitated at the bottom of the equipment through centrifugation, natural sedimentation, etc., and then collected and treated.

[0003] However, the existing processing device has the following problems: ①. During the crystallization of aluminum hydroxide, no matter whether the existing device adopts natural precipitation method or centrifugal precipitation method, aluminum hydroxide will precipitate at the bottom of the equipment, making it difficult to clean the precipitate; ②. Since less aluminum hydroxide is produced in the waste alkali solution, the amount of aluminum hydroxide per unit volume is low. If centrifugation or natural sedimentation is used, it is not easy to make the small particles of aluminum hydroxide gather together and it is difficult to precipitate. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a device for treating waste alkali liquor from membrane boiling, so as to solve the technical problems that aluminum hydroxide precipitates at the bottom of the equipment, making it difficult to clean the precipitate, and that the amount of aluminum hydroxide per unit volume of aluminum hydroxide is low due to the small amount of aluminum hydroxide produced in the waste alkali liquor, and it is not easy to make small aluminum hydroxide particles gather together and precipitate if centrifugation or natural sedimentation is used.

[0005] To achieve the above-mentioned invention object, the technical solution adopted by the present invention includes: a device for treating waste alkali liquid from membrane boiling, including a mounting base, an aeration component and a collection component; Wherein, the aeration component includes a cylinder, a piston, an eccentric disk assembly and a driving member, the cylinder is horizontally arranged on the mounting base, the cylinder is a hollow cylindrical structure with one end open, the piston is located inside the cylinder, and slides and seals with the cylinder along the length direction of the cylinder, the eccentric disk assembly is arranged on the mounting base, and rotates with the mounting base, a connecting rod is arranged between the eccentric disk assembly and the piston, one end of the connecting rod is hinged to the piston, and the other end extends out of the cylinder through the open position of the cylinder and is hinged to the eccentric position of the eccentric disk assembly, the driving member is installed on the mounting base, and the driving member is used to drive the eccentric disk assembly to rotate so that the position of the connecting rod changes and then drives the piston to slide in the cylinder; The end of the cylinder away from the open port is respectively connected with an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is connected with the inside of the cylinder, and the other end extends upward to the top of the processing device, the air inlet pipe is provided with a first one-way valve, the first one-way valve only allows gas and liquid to enter the inside of the cylinder, one end of the air outlet pipe is connected with the inside of the cylinder, and the other end extends downward to the bottom of the processing device, the air outlet pipe is provided with a second one-way valve, the second one-way valve only allows gas and liquid to be discharged from the inside of the cylinder; The collecting component is installed on a mounting base, and has a liquid inlet and a liquid outlet. A liquid guide tube is arranged between the liquid outlet and the air inlet pipe, one end of the liquid guide tube is connected with the liquid outlet, and the other end is connected with the air inlet pipe. The connection point between the liquid guide tube and the air inlet pipe is located on the side of the first one-way valve away from the cylinder body. When the interior of the collecting component is in a negative pressure state, the suspended matter on the surface of the waste alkali liquid can be sucked into the collecting component.

[0006] Compared with the prior art, the advantages of the present invention include: (1) The present invention provides a device for treating waste alkali liquid from membrane production, wherein the driving member drives the eccentric disk assembly to rotate so as to form a negative pressure state inside the cylinder, thereby providing power for collecting the aluminum hydroxide suspension into the collecting component, so that the aluminum hydroxide suspension enters the collecting component and is collected by the collecting component. The aeration component and the collecting component are linked together during the whole process, and there is no need to drive the collecting component separately to collect the suspension, which is a relatively ingenious design. (2) The present invention provides a treatment device for waste alkali liquor from membrane production, in which the driving member drives the eccentric disc assembly to continuously rotate, so that the treatment device continuously cycles between collection and aeration, thereby realizing automation and continuity of the treatment process, reducing dependence on manual operation, and improving treatment efficiency; (3) The present invention provides a treatment device for waste alkali liquid from membrane production. The aluminum hydroxide suspension is collected in a collecting component, and since the treatment device is installed on the surface of the waste alkali liquid, the aluminum hydroxide suspension in the collecting component can be extracted from above the liquid surface, thereby solving the technical problem that when the existing device treats the waste alkali liquid, the aluminum hydroxide will precipitate at the bottom of the device, making it difficult to clean the precipitate. In addition, the collected aluminum hydroxide can be recycled and used, which has an environmental protection effect. (4) The present invention provides a device for treating waste alkali liquor from membrane production, which reduces the concentration of aluminum hydroxide in the waste alkali liquor by continuously collecting aluminum hydroxide suspension, thereby making it easier for the reaction to proceed in the direction of aluminum hydroxide production and easier for aluminum hydroxide to precipitate; (5) The present invention provides a device for treating waste alkali liquid from membrane boiling. Since less aluminum hydroxide is produced in the waste alkali liquid, the amount of aluminum hydroxide per unit volume of aluminum hydroxide is relatively low. It is difficult to treat the aluminum hydroxide by centrifugation or natural sedimentation. The aeration component can aerate the aluminum hydroxide suspension with a low amount of aluminum hydroxide per unit volume, so that it rises to the top of the waste alkali liquid and is then collected by the collecting component, thereby having a better treatment effect on the waste alkali liquid.

[0007] Furthermore, the collecting component is movably arranged on the mounting base along the vertical direction, and a first transmission member is arranged between the collecting component and the eccentric disk assembly. When the eccentric disk assembly rotates to make the piston slide toward the outside of the cylinder, the collecting component can be moved downward by the first transmission member so that the liquid inlet of the collecting component is lower than the waste alkali liquid surface; An elastic member is arranged between the collecting member and the mounting base, one end of the elastic member is connected to the collecting member, and the other end is connected to the mounting base. When the eccentric disk assembly rotates to make the piston slide toward the inside of the cylinder, the elastic member pushes the collecting member to elastically reset so that the liquid inlet of the collecting member is higher than the waste alkali liquid level.

[0008] In the present invention, the up and down movement of the collecting component is linked with the rotation of the eccentric disc assembly under the coordinated action of the first transmission member and the elastic member, so that the collecting component can automatically move up and down in the vertical direction. Through the first transmission member, the rotation of the eccentric disc assembly can make the collecting component move downward until it drops below the level of the waste alkali liquid, so as to facilitate the subsequent suction of the waste alkali liquid and the suspended matter therein; the elastic member elastically drives the collecting component to move upward to above the level of the waste alkali liquid, effectively avoiding the possibility of the waste alkali liquid overflowing from the liquid inlet of the collecting component during the subsequent aeration process, thereby improving the collection effect.

[0009] Furthermore, the liquid suction bucket is connected to the collecting box via a connecting tube, a circular plate-shaped sealing portion is arranged in the connecting tube, the sealing portion is rotatably connected to the connecting tube via a rotating shaft, a second transmission member is arranged between the rotating shaft and the mounting base, the second transmission member is located outside the connecting tube, during the up and down movement of the collecting component, the rotating shaft can be rotated by the second transmission member, thereby driving the sealing portion to rotate so that the sealing portion is in a closed state and an open state with respect to the connecting tube, when the upper end of the first rod body abuts against the first platform, the sealing portion is in an open state with respect to the connecting tube, and when the upper end of the first rod body abuts against the second platform, the sealing portion is in a closed state with respect to the connecting tube.

[0010] In the present invention, the design of the second transmission member links the rotation of the sealing part with the up-and-down movement of the collecting part, so that the rotation state of the sealing part can automatically change with the up-and-down movement of the collecting part. This control enables the connecting pipe to be opened when needed (when the collecting part collects the waste alkali liquid) and closed when not needed (i.e., during aeration treatment, the main purpose is to prevent the waste alkali liquid in the collecting box from flowing back), and the treatment process is continuous and stable.

[0011] Furthermore, an air bag is provided on the mounting base, a vent is provided on the air bag, and a valve is provided on the vent. The position of the treatment device in the waste alkali liquid can be adjusted by controlling the internal pressure of the air bag.

[0012] In the present invention: (1) By providing an air bag, the entire device can be suspended on the surface of the waste alkali liquid and can be adjusted automatically according to the height of the waste alkali liquid surface. In addition, since the treatment device is suspended on the surface of the waste alkali liquid, it is convenient to move the entire treatment device, so that the position of the treatment device on the surface of the waste alkali liquid changes, thereby facilitating the collection and treatment of suspensions at different positions; (2) By adjusting the internal pressure of the airbag, the vertical position of the entire device can be adaptively adjusted according to the concentration difference between different waste alkali solutions; (3) Continuously filling the air bag with gas can make the collection box rise above the level of the waste alkali liquid, and then the aluminum hydroxide precipitate in the collection box can be directly disposed of above the liquid level, which is more convenient to operate; (4) By adjusting the air bag pressure, the treatment device can be moved to different depths of the waste alkali liquid to facilitate the collection of suspended matter at different depths.

[0013] Furthermore, the mounting base is provided with a plurality of groups of counterweight assemblies, which are respectively located at different positions of the mounting base. The processing device can be kept in a stable state by adjusting different counterweight conditions of each group of counterweight assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 is a structural schematic diagram of the processing device in a first use state; Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ; Figure 3 is a structural schematic diagram of the processing device when it is in a second use state; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure.

[0016] Reference numerals: Install the base 1, the cylinder 2, the piston 3, the driving member 4, the connecting rod 5, the air inlet pipe 6, the air outlet pipe 7, the first one-way valve 8, the second one-way valve 9, the liquid guide tube 10, the elastic member 11, the liquid suction bucket 12, the first box body 13, the second box body 14, the filter 15, the first disk body 16, the second disk body 17, the first platform 18, the second platform 19, the inclined surface 20, the first rod body 21, the connecting pipe 22, the sealing part 23, the rotating shaft 24, the second rod body 25, the third rod body 26, the air bag 27, the vent 28, the valve 29, and the counterweight assembly 30. DETAILED DESCRIPTION

[0017] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principle, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0018] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, the present invention covers any substitution, modification, equivalent method and scheme made on the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "an" and other similar words do not indicate a quantity limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0020] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, when positional terms such as both sides, outside, up and down are used, it should be understood that they are only used to facilitate understanding and description, considering that the structure may be facing other positions.

[0021] In the description of this application, unless otherwise clearly specified and limited, the technical or scientific terms used should have the usual meanings understood by persons with general skills in the field to which this application belongs. Terms such as "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] See also Figure 1-4 The present invention provides a technical solution: a device for treating waste alkali liquid from membrane boiling, comprising a mounting base 1, an aeration component and a collecting component.

[0023] The mounting base 1 serves as the mounting foundation of the entire treatment device and is used to support and fix other components. Specifically, the mounting base 1 is a plate-like structure. During the specific installation, the mounting base 1 can be set in a recovery pool or recovery container containing the waste alkali liquid, and the entire treatment device is located at the upper end of the waste alkali liquid surface.

[0024] The aeration component includes a cylinder 2, a piston 3, an eccentric disk assembly and a driving member 4. The cylinder 2 is horizontally arranged on the mounting base 1, and the cylinder 2 is a hollow cylindrical structure with one end open. The piston 3 is located inside the cylinder 2, and slides and seals with the cylinder 2 along the length direction of the cylinder 2, and the pressure inside the cylinder 2 is changed by changing the position of the piston 3 in the cylinder 2. The eccentric disk assembly is arranged on the mounting base 1 and rotates with the mounting base 1. A connecting rod 5 is arranged between the eccentric disk assembly and the piston 3, one end of the connecting rod 5 is hinged to the piston 3, and the other end extends out of the cylinder 2 through the open position of the cylinder 2 and is hinged to the eccentric part of the eccentric disk assembly. By rotating the eccentric disk assembly, the piston 3 can make reciprocating motion inside the cylinder 2 under the transmission action of the connecting rod 5. The driving member 4 is installed on the mounting base 1, and the driving member 4 is used to drive the eccentric disk assembly to rotate so that the position of the connecting rod 5 changes and then drives the piston 3 to slide in the cylinder 2.

[0025] Specifically, the driving member 4 can be a driving structure such as a motor or a rotary cylinder that can drive an object to rotate, and the driving end of the driving member 4 is fixedly connected to the center of the eccentric disk assembly.

[0026] The end of the cylinder 2 away from the open end is connected to an air inlet pipe 6 and an air outlet pipe 7. One end of the air inlet pipe 6 is connected to the inside of the cylinder 2, and the other end extends upward to the top of the processing device. The air inlet pipe 6 is provided with a first one-way valve 8, which only allows gas and liquid to enter the cylinder 2. One end of the air outlet pipe 7 is connected to the inside of the cylinder 2, and the other end extends downward to the bottom of the processing device. The air outlet pipe 7 is provided with a second one-way valve 9, which only allows gas and liquid to be discharged from the inside of the cylinder 2 to the outside.

[0027] The collecting component is mounted on the mounting base 1 and is used to collect the suspended liquid in the waste alkali liquid. The collecting component has a liquid inlet and a liquid outlet, and a liquid guide tube 10 is arranged between the liquid outlet and the air inlet pipe 6. One end of the liquid guide tube 10 is connected to the liquid outlet, and the other end is connected to the air inlet pipe 6. The connecting point of the liquid guide tube 10 and the air inlet pipe 6 is located on the side of the first one-way valve 8 away from the cylinder 2. When the inside of the collecting component is in a negative pressure state, the suspended matter on the surface of the waste alkali liquid can be sucked into the collecting component.

[0028] The processing unit has two different usage states: See also Figure 1-2 In the first use state, the driving member 4 drives the eccentric disk assembly to rotate so that the piston 3 slides toward the outside of the cylinder 2, and the internal space of the cylinder 2 expands to form a negative pressure in the cylinder 2. Under the negative pressure state, the outside air will enter the cylinder 2 through the air inlet pipe 6. At the same time, the waste alkali liquid enters the collecting component from the liquid inlet of the collecting component. After the suspension in the waste alkali liquid is filtered in the collecting component (that is, the suspension accumulates in the collecting component after filtration and is precipitated in the collecting component), it enters the air inlet pipe 6 through the liquid guide tube 10, and finally enters the cylinder 2 together with the gas in the air inlet pipe 6.

[0029] See also Figure 3-4 In the second use state, the driving member 4 drives the eccentric disk assembly to rotate so that the piston 3 slides into the cylinder 2, and the internal space of the cylinder 2 is compressed to form a positive pressure. Under the positive pressure state, the waste alkali liquid and air in the cylinder 2 are discharged outward through the outlet pipe 7. Since the outlet port of the outlet pipe 7 is located below the surface of the waste alkali liquid, aeration can be formed inside the waste alkali liquid after the gas is discharged. The discharged gas small molecules combine with the aluminum hydroxide suspension in the waste alkali liquid and float to the top of the waste alkali liquid so as to be collected by the collecting component in the next cycle.

[0030] By driving the eccentric disc assembly to continuously rotate through the driving member 4, the processing device can be continuously switched between the first use state and the second use state, thereby realizing a continuous cycle of collection and aeration.

[0031] The present invention is specifically implemented: ① The eccentric disc assembly is driven to rotate continuously by the driving member 4, so that the treatment device continuously cycles between collection and aeration, realizing the automation and continuity of the treatment process, reducing the dependence on manual operation, and improving the treatment efficiency; ②. The aluminum hydroxide suspension is continuously collected during the treatment process. The continuous collection of the aluminum hydroxide suspension reduces the concentration of aluminum hydroxide in the waste alkali solution, making it easier to precipitate aluminum hydroxide. ③. By collecting the aluminum hydroxide suspension in the collecting component, and because the treatment device is installed on the surface of the waste alkali liquid, the aluminum hydroxide suspension in the collecting component can be extracted from above the liquid surface, thereby solving the technical problem that when the existing device treats the waste alkali liquid, the aluminum hydroxide will precipitate at the bottom of the equipment, making it difficult to clean up the precipitation, and the collected aluminum hydroxide can be recycled, which has an environmental protection effect; ④. The eccentric disc assembly is driven to rotate by the driving member 4 to form a negative pressure state inside the cylinder 2, thereby providing power for the aluminum hydroxide suspension to be collected into the collecting component, making it easier for the aluminum hydroxide suspension to enter the collecting component and be collected by the collecting component, thereby linking the aeration work with the collection work. It is not necessary to drive the collecting component separately to collect the suspension into the collecting component, and the design is relatively ingenious. ⑤. Since less aluminum hydroxide is produced in the waste alkali liquid, the amount of aluminum hydroxide per unit volume is low. It is difficult to treat it by centrifugation or natural sedimentation. The aeration component can aerate the aluminum hydroxide suspension with a low amount of aluminum hydroxide per unit volume, so that it rises to the top of the waste alkali liquid and is then collected by the collecting component, thereby having a better treatment effect on the waste alkali liquid.

[0032] In this embodiment: the collecting component is movably arranged on the mounting base 1 along the vertical direction, which means that the collecting component can move up and down in the vertical direction, and a first transmission member is arranged between the collecting component and the eccentric disk assembly, and the first transmission member is used to transmit the power or movement of the rotation of the eccentric disk assembly. When the eccentric disk assembly rotates to make the piston 3 slide toward the outside of the cylinder 2 (i.e., a negative pressure state is formed), the collecting component can be moved downward by the first transmission member so that the liquid inlet of the collecting component is lower than the waste alkali liquid surface, so that the waste alkali liquid and the suspended matter therein can be sucked in through the liquid inlet of the collecting component; An elastic member 11 is arranged between the collecting member and the mounting base 1, one end of the elastic member 11 is connected to the collecting member, and the other end is connected to the mounting base 1. When the eccentric disk assembly rotates to make the piston 3 slide toward the inside of the cylinder 2 (i.e., a positive pressure state is formed), the elastic member 11 will push the collecting member to move upward to achieve elastic reset. This reset enables the liquid inlet of the collecting member to be higher than the level of the waste alkali liquid, thereby preventing the suspension in the waste alkali liquid from flowing out of the collecting member from the liquid inlet of the collecting member during the aeration process, thereby improving the collection effect.

[0033] Specifically, the elastic member 11 may be an elastic structure with elastic recovery function, such as a spring, an elastic rubber column, and an elastic belt.

[0034] It should be noted that the catheter 10 is made of a flexible material so that it can be expanded and contracted according to the up and down movement of the collecting component.

[0035] In this embodiment: the collecting component includes a liquid suction hopper 12 horizontally arranged on the mounting base 1, the liquid suction hopper 12 has an opening on the top, the opening of the liquid suction hopper 12 is the liquid inlet of the collecting component, the liquid suction hopper 12 is connected to a collecting box below, the bottom of the collecting box has an opening, the opening of the collecting box is the liquid outlet of the collecting component, and a filtering structure is arranged inside the collecting box, the filtering structure is used to filter the waste alkali liquid entering the collecting box from the liquid suction hopper 12 so that the suspended liquid in the waste alkali liquid can be stored in the collecting box.

[0036] Specifically, the liquid suction hopper 12 is in the shape of a funnel with a large top and a small bottom. The liquid suction hopper 12 can be movably arranged on the mounting base 1 and can move up and down on the mounting base 1. The collection box is composed of a first box body 13 and a second box body 14. The second box body 14 is plugged into the first box body 13 in the form of a drawer. The top of the second box body 14 is open, and a filter hole is provided at the bottom. A filter screen 15 is also provided at the bottom of the second box body 14. The bottom of the first box body 13 has a connecting port connected to the inside of the first box body 13. The connecting port is an opening at the bottom of the collection box (that is, the liquid outlet of the collection component), and the connecting port is connected to the end of the liquid guide tube 10 away from the air inlet pipe 6. The waste alkali liquid enters the first box body 13 through the liquid suction hopper 12, and then is filtered by the filter screen 15 inside the second box body 14 and then transported to the inside of the cylinder 2 through the connecting port (liquid outlet of the collection component) through the liquid guide tube 10.

[0037] The eccentric disk assembly includes a first disk body 16 and a second disk body 17 which are overlapped. The eccentric part between the first disk body 16 and the second disk body 17 is connected by a connecting column. The connecting column is hinged to the end of the connecting rod 5 away from the piston 3. The center position of the first disk body 16 is connected to the driving member 4 for receiving the rotational power of the driving member 4. The bottom of the second disk body 17 has a first platform 18 and a second platform 19 which are horizontally arranged. The first platform 18 and the second platform 19 are both fan-shaped. The first platform 18 is located below the second platform 19. The recessed portion of the first platform 18 is arranged opposite to the recessed portion of the second platform 19. There are two inclined surfaces 20 between the first platform 18 and the second platform 19, and a continuous annular structure is formed by the two inclined surfaces 20, thereby forming two contact surfaces of different heights for cooperating with the first transmission member.

[0038] The first transmission member includes a first rod body 21, which is disposed on the mounting base 1 and slides with the mounting base 1 along the vertical direction. The lower end of the first rod body 21 is connected to the collection box. Specifically, the lower end of the first rod body 21 is connected to the bottom of the first box body 13, and the upper end extends upward and abuts against the bottom of the second tray body 17. Figure 1-2 When the upper end of the first rod 21 abuts against the first platform 18, the top opening of the liquid suction bucket 12 is lower than the waste alkali liquid surface, and the treatment device is in the first use state, please refer to Figure 3-4 When the upper end of the first rod 21 abuts against the second platform 19, the processing device is in the second use state, and the top opening of the liquid suction bucket 12 is higher than the waste alkali liquid level. When it is necessary to switch the first platform 18 to the second platform 19, the second disk 17 is rotated (this can be achieved by driving the first disk 16 by the driving member 4), and the elastic force of the elastic member 11 pushes the first rod 21 to move upward along one of the inclined surfaces 20 until the upper end of the first rod 21 abuts against the second platform 19. When it is necessary to switch the second platform 19 to the first platform 18, the second disk 17 is rotated (this can be achieved by driving the first disk 16 by the driving member 4), and under the guidance of the other inclined surface 20, the top of the first rod 21 descends from the second platform 19 to the first platform 18. In this process, the elastic member 11 is gradually elastically stressed, which accumulates force for the subsequent elastic force to push the first rod 21 upward.

[0039] See also Figure 2 Or 4, in this embodiment: the liquid suction bucket 12 is connected to the collection box through the connecting pipe 22, and the waste alkali liquid flows from the liquid suction bucket 12 into the collection box through the connecting pipe 22. A circular plate-shaped sealing part 23 is arranged in the connecting pipe 22, and the sealing part 23 is rotatably connected to the connecting pipe 22 through a rotating shaft 24. The sealing part 23 can rotate around the rotating shaft 24, thereby realizing the closing and opening control of the connecting pipe 22. A second transmission member is arranged between the rotating shaft 24 and the mounting base 1, and the second transmission member is located outside the connecting pipe 22. The second transmission member is used to transmit power to rotate the rotating shaft 24 during the up and down movement of the collection component.

[0040] During the upward and downward movement of the collecting component, the second transmission member can cause the rotating shaft 24 to rotate, thereby driving the sealing portion 23 to rotate so that the sealing portion 23 is in two states: closed and open with respect to the connecting pipe 22. Figure 2 When the upper end of the first rod 21 abuts against the first platform 18, the treatment device is in the first use state (collection of waste alkali liquid), and the sealing portion 23 is open to the connecting pipe 22, so that the waste alkali liquid can flow normally; please refer to Figure 4 When the upper end of the first rod 21 abuts against the second platform 19, the treatment device is in the second use state (aeration treatment), and the sealing part 23 is in a closed state with respect to the connecting pipe 22, so that the waste alkali liquid in the collection box is not easy to flow back, and the collection of the aluminum hydroxide suspension is more stable. The first rod 21 switches between the first platform 18 and the second platform 19, and accordingly, the sealing part 23 switches the connecting pipe 22 between closing and opening.

[0041] Specifically, the second transmission member includes a third rod 26 and a fourth rod. One end of the third rod 26 is fixedly connected to the rotating shaft 24, and the other end extends radially along the rotating shaft 24. One end of the fourth rod is fixedly connected to the mounting base 1, and the other end extends downward to the end of the third rod 26 away from the rotating shaft 24. The end of the third rod 26 away from the rotating shaft 24 has a bar-shaped through hole penetrating the third rod 26. The length direction of the bar-shaped through hole is consistent with the length direction of the third rod 26. A clamping column is arranged in the bar-shaped through hole, and the clamping column can slide in the bar-shaped through hole. The clamping column passes out of the bar-shaped through hole relative to one end of the fourth rod and is fixedly connected to the fourth rod. The collecting component moves up and down, and the third rod 26 can be rotated by limiting the clamping column, thereby driving the rotating shaft 24 to rotate. At the same time, the clamping column will also slide in the bar-shaped through hole to reduce the interference of the third rod 26 on the movement of the clamping column.

[0042] See also Figure 1 Or 4, in this embodiment: the mounting base 1 is provided with an air bag 27, as a structure that can be inflated and deflated to adjust the buoyancy of the entire treatment device, the air bag 27 is provided with a vent 28 for exchanging with external gas, and the vent 28 is provided with a valve 29 for controlling the inlet and outlet of gas, thereby realizing the control of the internal pressure of the air bag 27, and the position of the treatment device in the waste alkali liquid can be adjusted by controlling the internal pressure of the air bag 27. When it is necessary to lift the treatment device, the air bag 27 can be inflated to increase its internal pressure, so that the air bag 27 expands and provides upward buoyancy. On the contrary, when it is necessary to lower the treatment device, the air bag 27 can be deflated to reduce the internal pressure of the air bag 27, shrink it and reduce the buoyancy, and the treatment device descends under the influence of its own weight. It should be noted that the air bag 27 should be left with a channel for taking out the collection box to facilitate the handling of the collection box.

[0043] When the above plan is implemented: ①, by providing the air bag 27, the whole device can be suspended on the surface of the waste alkali liquid, and can be adjusted automatically according to the height of the waste alkali liquid surface, and because the treatment device is suspended on the surface of the waste alkali liquid, it is convenient to move the whole treatment device, so that the position of the treatment device on the surface of the waste alkali liquid changes, thereby facilitating the collection and treatment of suspensions at different positions; ②, by adjusting the internal pressure of the airbag 27, the vertical position of the entire device can be adaptively adjusted according to the concentration difference between different waste alkali solutions; ③. Continuously filling the air bag 27 with gas can make the collection box rise above the level of the waste alkali liquid. Subsequently, the aluminum hydroxide precipitate in the collection box can be directly disposed of above the liquid level, which is more convenient to operate; ④. By adjusting the pressure of the air bag 27, the processing device can be moved to different depths of the waste alkali liquid to facilitate the collection of suspended matter at different depths.

[0044] See also Figure 1 Or 4, in this embodiment: multiple groups of counterweight components 30 are arranged on the mounting base 1, and the multiple groups of counterweight components 30 are respectively located at different positions of the mounting base 1. The processing device can be kept in a stable state by adjusting the different counterweight conditions of each group of counterweight components 30. By adjusting the counterweight conditions of each counterweight component 30 (i.e., increasing or decreasing the counterweight), the weight distribution of the processing device in different directions can be changed, so that the processing device can be kept in a stable state in the waste alkali liquid. The stable state means that the processing device will not tilt, shake or lose stability due to uneven weight distribution.

[0045] Specifically, the counterweight assembly 30 includes an insertion rod and a counterweight block vertically arranged along the direction, the insertion rod is fixedly connected to the mounting base 1, and the counterweight block is sleeved outside the insertion rod.

[0046] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A device for treating waste alkali liquor from film making, characterized in that: It includes a mounting base, an aeration component, and a collection component; Wherein, the aeration component includes a cylinder, a piston, an eccentric disk assembly and a driving member, the cylinder is horizontally arranged on the mounting base, the cylinder is a hollow cylindrical structure with one end open, the piston is located inside the cylinder, and slides and seals with the cylinder along the length direction of the cylinder, the eccentric disk assembly is arranged on the mounting base, and rotates with the mounting base, a connecting rod is arranged between the eccentric disk assembly and the piston, one end of the connecting rod is hinged to the piston, and the other end extends out of the cylinder through the open position of the cylinder and is hinged to the eccentric position of the eccentric disk assembly, the driving member is installed on the mounting base, and the driving member is used to drive the eccentric disk assembly to rotate so that the position of the connecting rod changes and then drives the piston to slide in the cylinder; The end of the cylinder away from the open port is respectively connected with an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is connected with the inside of the cylinder, and the other end extends upward to the top of the processing device, the air inlet pipe is provided with a first one-way valve, the first one-way valve only allows gas and liquid to enter the inside of the cylinder, one end of the air outlet pipe is connected with the inside of the cylinder, and the other end extends downward to the bottom of the processing device, the air outlet pipe is provided with a second one-way valve, the second one-way valve only allows gas and liquid to be discharged from the inside of the cylinder; The collecting component is installed on a mounting base, and has a liquid inlet and a liquid outlet. A liquid guide tube is arranged between the liquid outlet and the air inlet pipe, one end of the liquid guide tube is connected with the liquid outlet, and the other end is connected with the air inlet pipe. The connection point between the liquid guide tube and the air inlet pipe is located on the side of the first one-way valve away from the cylinder body. When the interior of the collecting component is in a negative pressure state, the suspended matter on the surface of the waste alkali liquid can be sucked into the collecting component.

2. The device for treating waste alkali liquor from film making according to claim 1, characterized in that: The collecting component is movably arranged on the mounting base along the vertical direction, and a first transmission member is arranged between the collecting component and the eccentric disk assembly. When the eccentric disk assembly rotates to make the piston slide toward the outside of the cylinder, the collecting component can be moved downward by the first transmission member so that the liquid inlet of the collecting component is lower than the waste alkali liquid surface; An elastic member is arranged between the collecting member and the mounting base, one end of the elastic member is connected to the collecting member, and the other end is connected to the mounting base. When the eccentric disk assembly rotates to make the piston slide toward the inside of the cylinder, the elastic member pushes the collecting member to elastically reset so that the liquid inlet of the collecting member is higher than the waste alkali liquid level.

3. The device for treating waste alkali liquor from film making according to claim 2 is characterized in that: The collecting component comprises a liquid suction hopper horizontally arranged on the mounting base, the top of the liquid suction hopper is open, the open opening of the liquid suction hopper is the liquid inlet of the collecting component, the lower part of the liquid suction hopper is connected to a collecting box, the lower bottom of the collecting box is open, the opening of the collecting box is the liquid outlet of the collecting component, a filtering structure is arranged inside the collecting box, the filtering structure is used to filter the waste alkali liquid entering the collecting box from the liquid suction hopper so that the suspension in the waste alkali liquid can be stored in the collecting box; The eccentric disc assembly comprises a first disc body and a second disc body which are overlapped, wherein the eccentric part between the first disc body and the second disc body is connected by a connecting column, wherein the connecting column is hinged to the end of the connecting rod away from the piston, the center of the first disc body is connected to the driving member, and the bottom of the second disc body has a first platform and a second platform which are horizontally arranged, wherein the first platform and the second platform are both fan-shaped, the first platform is located below the second platform, the concave part of the first platform is arranged opposite to the concave part of the second platform, and there are two inclined surfaces between the first platform and the second platform, and a continuous annular structure is formed by the two inclined surfaces; The first transmission member includes a first rod body, which is arranged on a mounting base and slides with the mounting base in a vertical direction. The lower end of the first rod body is connected to a collecting box, and the upper end extends upward and abuts against the bottom of a second plate body. When the upper end of the first rod body abuts against the first platform, the top opening of the liquid suction hopper is lower than the waste alkali liquid level. When the upper end of the first rod body abuts against the second platform, the top opening of the liquid suction hopper is higher than the waste alkali liquid level.

4. The device for treating waste alkali liquor from film making according to claim 3 is characterized in that: The liquid suction hopper is connected to the collection box through a connecting pipe, a circular plate-shaped sealing part is arranged in the connecting pipe, the sealing part is rotatably connected to the connecting pipe through a rotating shaft, a second transmission member is arranged between the rotating shaft and the mounting base, and the second transmission member is located outside the connecting pipe; During the up and down movement of the collecting component, the second transmission component can rotate the rotating shaft and then drive the sealing part to rotate so that the sealing part is in a closed state and an open state with respect to the connecting pipe. When the upper end of the first rod body abuts against the first platform, the sealing part is in an open state with respect to the connecting pipe, and when the upper end of the first rod body abuts against the second platform, the sealing part is in a closed state with respect to the connecting pipe.

5. The device for treating waste alkali liquor from film making according to claim 4 is characterized in that: An air bag is arranged on the installation base, a vent is arranged on the air bag, and a valve is arranged on the vent. The position of the treatment device in the waste alkali liquid can be adjusted by controlling the internal pressure of the air bag.

6. The device for treating waste alkali liquor from film making according to claim 5 is characterized in that: The mounting base is provided with a plurality of groups of counterweight assemblies, which are respectively located at different positions of the mounting base. The processing device can be kept in a stable state by adjusting the different counterweight conditions of each group of counterweight assemblies.

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