Storage and feeding integrated device for settling agent

By designing a sedimentant storage and disposal integrated device including a closed storage box and a variety of stirring and disposal mechanisms, the problems of inappropriate storage of the agent and insufficient applicability of the device are solved, and efficient sewage treatment effect and large-area applicability are achieved.

CN119857403AInactive Publication Date: 2025-04-22HAINAN CHENPU TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510146149.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2025-04-22
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In existing heavy metal sewage treatment devices, inappropriate storage of the agent leads to decomposition or deterioration of the agent, affecting the sewage treatment effect, and the device is difficult to be suitable for the treatment needs of large-area sewage tanks.

Method used

A storage and delivery device for sedimentation agent is designed, and the chemicals are stored in a closed box. The chemicals are also mixed and widely distributed through a stirring blade, spiral blade and a swaying mechanism. It is suitable for large-area sewage treatment.

Benefits of technology

Through the combination of closed storage and a variety of stirring and dispensing mechanisms, the quality of the agent remains unchanged, the sewage treatment effect is improved, and it is suitable for the treatment needs of large-area sewage tanks.

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Abstract

The invention discloses a settling agent storing and putting integrated device which comprises a box body, the box body is used for containing chemicals, a stirring mechanism, a conveying mechanism, a swinging mechanism and a driving mechanism are arranged in the box body, and the driving mechanism is used for driving the stirring mechanism, the conveying mechanism and the swinging mechanism to operate; the stirring mechanism comprises a plurality of stirring blades and stirs liquid medicine through the stirring blades, the swinging mechanism comprises a rotating disc and a material pipe, a connecting rod is arranged between the rotating disc and the material pipe, the rotating disc pushes and pulls the material pipe through the connecting rod to generate deflection, the conveying mechanism comprises a material barrel, and a spiral blade is arranged in the material barrel. The conveying mechanism conveys liquid medicine into the material pipe through the spiral blade. The box body is used for storing a settling agent in a closed manner, so that the quality of the agent is maintained, and when the agent is fed by utilizing the rotation of the spiral blade, the agent can be stirred through the stirring blades, so that the phenomenon that the treatment effect of the agent on sewage is influenced due to the crystallization phenomenon of the agent caused by the change of the external environment is avoided.
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Description

Technical Field

[0001] The invention relates to the technical field of heavy metal wastewater treatment, and in particular to a sedimentation agent storage and delivery integrated device. Background Art

[0002] Heavy metal precipitator is a sulfur-containing compound. It stably combines with heavy metal ions through sulfur groups and undergoes chemical reactions to form stable organic metal compounds. It is not easy to dissolve and forms solid precipitates in aqueous solution, which are then separated and removed.

[0003] Metal wastewater refers to wastewater containing heavy metals discharged from industrial production processes such as mining, machinery manufacturing, chemical industry, electronics, and instrumentation. The heavy metals in heavy metal wastewater generally cannot be decomposed and destroyed, but can only be transferred to other locations and their physical and chemical forms. The treatment method for heavy metal wastewater is to treat it on-site at the production site, usually using chemical precipitation method, ion exchange method, etc. After treatment, the heavy metal content in the water is lower than the discharge standard and can be discharged or reused.

[0004] After searching, the Chinese invention patent with announcement number CN110272109B discloses a drug delivery device for treating heavy metal wastewater, including a delivery box and a fixed box, the right side of the delivery box is fixedly connected to the left side of the fixed box, the bottom of the delivery box is fixedly installed with a connecting pipe, and the first gear drives the second gear and the rotating rod to rotate through the first chain. This application stores the drug in a storage box for easy delivery and use, but the high temperature and humidity of the external environment may cause the drug to decompose or deteriorate, thereby affecting its ability to capture heavy metal ions. Therefore, the open storage box in the device will not be able to properly store the drug, resulting in insufficient effect of subsequent sewage treatment; in addition, the device has a limited range of stirring the water body through the impeller and the stirring rod, and it is difficult to adapt to the sewage treatment needs of large-area sewage pools. Summary of the invention

[0005] In view of the above-mentioned prior art, the present invention provides an integrated device for storing and dispensing a sedimentation agent, and the main technical problem to be solved is how to ensure the sewage treatment effect brought about by the addition of the agent.

[0006] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0007] A device for storing and delivering a sedimentation agent comprises a box body, the box body is used to contain the medicine, a stirring mechanism, a conveying mechanism, a swinging mechanism and a driving mechanism are arranged in the box body, and the driving mechanism is used to drive the stirring mechanism, the conveying mechanism and the swinging mechanism to operate;

[0008] The stirring mechanism includes a plurality of stirring blades, and the stirring mechanism stirs the medicine liquid through the stirring blades. The swing mechanism includes a turntable and a material pipe. A connecting rod is provided between the turntable and the material pipe. The turntable pushes and pulls the material pipe through the connecting rod to produce deflection. The conveying mechanism includes a material barrel. A spiral blade is provided inside the material barrel. The conveying mechanism conveys the medicine liquid to the material pipe through the spiral blade. One end of the material pipe is fixedly connected to a cover shell, and the material pipe sprays the medicine through the cover shell.

[0009] Furthermore, a first through hole is opened at one side of the top and bottom ends of the box body, and the box body is rotatably connected to the same connecting shaft at the two first through holes. A number of stirring blades are equidistantly fixedly connected to the outside of the rod body of the connecting shaft inside the box body, and a turntable is fixedly connected to the top of the connecting shaft. A connecting pile is rotatably connected to one side of the top end of the turntable, and both ends of the connecting rod are rotatably connected to the connecting pile and the material pipe respectively.

[0010] Furthermore, a second through hole is opened on the other side of the bottom end of the box body, and the box body is rotatably connected to a rotating shaft at the second through hole. A driving wheel is connected to the outer side of the bottom end of the rotating shaft through a key, and the bottom end of the connecting shaft is connected to a driven wheel through a key. Both the driving wheel and the driven wheel are pulleys, and the same belt is sleeved on the outside of the driving wheel and the driven wheel. The diameter of the driving wheel is smaller than the diameter of the driven wheel.

[0011] Furthermore, a material barrel is fixedly connected to the inner wall of the bottom end of the box body at the outside of the rotating shaft, the spiral blade is located outside the rod body of the rotating shaft in the material barrel, and the top of the material barrel is fixedly connected to a discharge hopper, which is in a truncated cone shape. A third through hole is opened on one side of the top of the box body, and the top of the discharge hopper extends to the outside of the box body at the third through hole, and the material pipe is rotatably connected to the top of the discharge hopper.

[0012] Furthermore, a base is provided at the bottom of the box, and a number of legs are fixedly connected at equal distances between the base and the outer side of the box. The driving mechanism includes a motor, and the top end of the output shaft of the motor is fixedly connected to the rotating shaft. An observation window is opened on one side of the box, and a panel is fixedly connected to the box at the observation window, and the color of the panel is transparent brown.

[0013] Furthermore, a plurality of support rods are fixedly connected to the middle portion of the inner side of the cover shell, the bottom ends of the plurality of support rods are fixedly connected to the same support, a fourth through hole is provided on the support, the support is rotatably connected to a reciprocating screw at the fourth through hole, the top end of the support is fixedly connected to the casing at the outside of the fourth through hole, a motor is fixedly connected to the inside of the casing, and the bottom end of the output shaft of the motor is fixedly connected to the reciprocating screw.

[0014] Furthermore, the external thread of the reciprocating screw is connected to a nut, the external nut is rotatably connected to a plurality of support rods, the outer side of the support is rotatably connected to a plurality of connecting plates, the number of connecting plates is the same as the number of support rods and they correspond one to one, the top end of the support rod is rotatably connected to the connecting plate, and a connecting piece is fixedly connected between two adjacent connecting plates, and the material of the connecting piece is rubber.

[0015] Furthermore, a threaded through hole is provided at the top of the material pipe above the discharge hopper, a bolt is threadedly connected to the material pipe at the threaded through hole, a cover plate is fixedly connected to the bottom end of the bolt, and a sealing gasket is provided at the bottom end of the cover plate.

[0016] The beneficial effects of the present invention are:

[0017] 1. This device uses a box to store the sedimentation agent in a closed manner to maintain the quality of the agent. When the spiral blade is used to add the agent, the stirring blade can be used to stir the agent to avoid crystallization of the agent due to changes in the external environment, which affects the treatment effect of the agent on sewage. In addition, when the stirring blade and the spiral blade rotate, the turntable can also rotate synchronously, and the material pipe is pushed and pulled by the connecting rod, so that the cover can swing within the fan-shaped range, thereby increasing the range of the cover to scatter the agent, so that the device can be suitable for the use needs of large-area sewage treatment pools. Therefore, the process of storing and adding sedimentation agents in this device can bring better sewage treatment effects;

[0018] 2. By setting the guide plate and the connecting piece and utilizing the continuous rotation of the reciprocating screw, the nut can push and pull the connecting piece to continuously deflect up and down. In this case, the agent flows from the surface of the connecting piece and will have different spreading ranges, that is, the more the connecting piece is upturned, the larger the spraying range of the agent, and the more the connecting piece is drooped, the smaller the spraying range of the agent. In combination with the swing of the cover, the spraying range of the agent can be further expanded, and the dynamic changes of the spraying range can be utilized to ensure the uniformity of the spraying.

[0019] 3. By opening an observation window on the box and setting a transparent panel at the observation window, the status of the sedimentation agent in the box can be easily checked in real time, so as to replace, replenish or check the agent in time, thereby maintaining the effectiveness of the agent and ensuring the sewage treatment effect it brings.

[0020] 4. By setting bolts and covers, after the sedimentation agent is added, the bolts can be turned to adjust the cover to cover the top of the discharge hopper, so as to close the box body, so that the sedimentation agent can be stored in a closed environment, thereby further ensuring the storage effect of the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of a sedimentation agent storage and delivery integrated device in Example 1 of the present application;

[0022] Figure 2 A cross-sectional view of a cover of a sedimentation agent storage and delivery integrated device in Example 1 of the present application;

[0023] Figure 3 A three-dimensional diagram of a connecting plate of a sedimentation agent storage and delivery integrated device in Example 1 of the present application;

[0024] Figure 4 A three-dimensional diagram of a sedimentation agent storage and delivery integrated device in Example 1 of the present application;

[0025] Figure 5 This is a cross-sectional view of a material pipe of a sedimentation agent storage and delivery integrated device in Example 2 of the present application.

[0026] Description of Figure Numbers:

[0027] Box body 1, connecting shaft 2, stirring blade 3, turntable 4, connecting pile 5, connecting rod 6, discharge hopper 7, material pipe 8, cover shell 9, material barrel 10, rotating shaft 11, spiral blade 12, driving wheel 13, support leg 14, motor 15, belt 16, base 17, driven wheel 18, support rod 19, support 20, connecting plate 21, support rod 22, nut 23, reciprocating screw 24, casing 25, motor 26, connecting piece 27, observation window 28, bolt 29, cover plate 30. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] Example 1

[0030] Refer to the attached Figure 1-4 The present application provides a device for storing and delivering a sedimentation agent, comprising a box 1, the box 1 is used to contain the medicine, and a stirring mechanism, a conveying mechanism, a swinging mechanism and a driving mechanism are arranged in the box 1, and the driving mechanism is used to drive the stirring mechanism, the conveying mechanism and the swinging mechanism to operate;

[0031] When using this device, the sedimentation agent can be poured into the box 1 for storage to maintain the quality of the medicine. The closed storage of the medicine by the box 1 can prevent the external humidity from affecting the quality of the medicine. After the heat-insulating coating is applied on the box 1, the impact of external temperature changes on the medicine can also be reduced, thereby maintaining the quality of the medicine and ensuring that its release can have sufficient sewage treatment effect.

[0032] The stirring mechanism includes a plurality of stirring blades 3, and the stirring mechanism stirs the medicine liquid through the stirring blades 3. The swing mechanism includes a turntable 4 and a material pipe 8. A connecting rod 6 is provided between the turntable 4 and the material pipe 8. The turntable 4 pushes and pulls the material pipe 8 through the connecting rod 6 to produce a reciprocating deflection to achieve the swinging spraying of the cover 9, so that the range of medicine addition can be increased. The conveying mechanism includes a material barrel 10, and a spiral blade 12 is provided inside the material barrel 10. The conveying mechanism conveys the medicine liquid to the material pipe 8 through the spiral blade 12. One end of the material pipe 8 is fixedly connected to the cover 9, and the material pipe 8 sprays the medicine through the cover 9.

[0033] Preferably, a second through hole is opened on the other side of the bottom end of the box body 1, and the box body 1 is rotatably connected to a rotating shaft 11 at the second through hole. A driving wheel 13 is connected to the outer side of the bottom end of the rotating shaft 11 through a key, and the bottom end of the connecting shaft 2 is connected to a driven wheel 18 through a key. The driving wheel 13 and the driven wheel 18 are both pulleys, and the driving wheel 13 and the driven wheel 18 are externally sleeved with the same belt 16. The diameter of the driving wheel 13 is smaller than the diameter of the driven wheel 18. Therefore, the process of the driving wheel 13 driving the driven wheel 18 to rotate can have a deceleration effect, that is, the spiral blade 12 can move at a speed higher than the stirring blade 3. In this way, the high speed can be used to meet the power requirement of the spiral blade 12 to convey the medicine solution, and the speed of the stirring blade 3 can be slowed down so that it will not excessively agitate the medicine while stirring the medicine solution.

[0034] When it is necessary to add medicine into the sewage pool, the motor 15 can be started. The motor 15 can drive the spiral blade 12 and the driving wheel 13 to rotate through the rotating shaft 11. The rotation of the spiral blade 12 can draw the medicine in the box body 1 into the material barrel 10, and transport it from bottom to top to the discharge hopper 7, and finally enter the material pipe 8, and then be discharged from the cover shell 9.

[0035] Preferably, a first through hole is opened at one side of the top and bottom ends of the box body 1, the box body 1 is rotatably connected to the same connecting shaft 2 at the two first through holes, a plurality of stirring blades 3 are equidistantly fixedly connected to the outside of the rod body of the connecting shaft 2 in the box body 1, a turntable 4 is fixedly connected to the top of the connecting shaft 2, a connecting pile 5 is rotatably connected to one side of the top end of the turntable 4, and both ends of the connecting rod 6 are rotatably connected to the connecting pile 5 and the material pipe 8 respectively.

[0036] The rotation of the driving wheel 13 can drive the driven wheel 18 to rotate through the belt 16, and the driven wheel 18 drives the stirring blade 3 and the turntable 4 to rotate through the connecting shaft 2. Therefore, the stirring blade 3 can be used to stir the medicine to avoid the crystallization of the medicine due to changes in the external environment, thereby affecting the sewage treatment effect of the medicine.

[0037] Preferably, the inner wall of the bottom end of the box body 1 is fixedly connected to the material barrel 10 at the outside of the rotating shaft 11, the spiral blade 12 is located outside the rod body of the rotating shaft 11 in the material barrel 10, and the top of the material barrel 10 is fixedly connected to the discharge hopper 7, the discharge hopper 7 is truncated cone-shaped, a third through hole is opened on one side of the top of the box body 1, and the top of the discharge hopper 7 extends to the outside of the box body 1 at the third through hole, and the material pipe 8 is rotatably connected to the top of the discharge hopper 7, that is, a circular opening is opened on one side of the bottom end of the material pipe 8, and the top of the discharge hopper 7 extends to the inside of the material pipe 8 at the circular opening, and the discharge hopper 7 is rotatably connected to the material pipe 8 at the circular opening, and the two are connected by a rotating seal.

[0038] At the same time, the rotation of the turntable 4 can also repeatedly push and pull the material pipe 8 through the connecting rod 6, so that the material pipe 8 can drive the cover shell 9 to deflect back and forth within the fan-shaped range, thereby expanding the range of its delivery of liquid medicine.

[0039] Preferably, a plurality of struts 19 are fixedly connected to the middle portion of the inner side of the cover shell 9, the bottom ends of the plurality of struts 19 are fixedly connected to the same support 20, a fourth through hole is opened on the support 20, the support 20 is rotatably connected to a reciprocating screw 24 at the fourth through hole, the top end of the support 20 is fixedly connected to a housing 25 outside the fourth through hole, a motor 26 is fixedly connected to the inside of the housing 25, and the bottom end of the output shaft of the motor 26 is fixedly connected to the reciprocating screw 24. The external thread of the reciprocating screw 24 is connected to a nut 23, and the external rotation of the nut 23 is connected to a plurality of support rods 22. The outer side of the support 20 is connected to a plurality of connecting plates 21, and the number of connecting plates 21 and the support rods 22 are the same and correspond one to one. The top of the support rod 22 is rotationally connected to the connecting plate 21, and a connecting piece 27 is fixedly connected between two adjacent connecting plates 21. The material of the connecting piece 27 is rubber. When the connecting plate 21 is warped, a gap will appear between the plates. At this time, the connecting piece 27 can close the gap through its own elastic deformation, so that the medicine will not flow out from the above-mentioned gap, but will flow down along the inclination angle of the connecting plate 21 and the connecting piece 27, thereby ensuring that the two can provide an effective guiding effect for the liquid flow.

[0040] In addition, when adding medicine, the motor 26 can also be started. The motor 26 can drive the reciprocating screw 24 to rotate so that the nut 23 can continuously reciprocate in the vertical direction. Since the nut 23 can push and pull the connecting plate 21 to deflect through the support rod 22, the rotation of the reciprocating screw 24 can make the connecting plate 21 continuously rise and droop. When the connecting plate 21 is raised, the medicine liquid flowing on its surface will have a larger spreading range, and when the connecting plate 21 is drooped, the spreading range of the medicine liquid will be reduced. Therefore, the swing of the material pipe 8 can have a larger spreading range.

[0041] Preferably, a base 17 is provided at the bottom of the box body 1, and a plurality of legs 14 are fixedly connected at equal distances between the base 17 and the outer side of the box body 1. The driving mechanism includes a motor 15, and the top end of the output shaft of the motor 15 is fixedly connected to the rotating shaft 11. An observation window 28 is provided on one side of the box body 1, and a panel is fixedly connected to the box body 1 at the observation window 28. The color of the panel is transparent brown. The panel of this color can not only meet the needs of observing the medicine, but also provide a shading effect for the medicine, thereby preventing the exposure to external light from affecting the quality of the medicine.

[0042] During the spraying process, the state of the medicine can be observed from the transparent panel at the observation window 28, so as to check, replace or replenish the sedimentation agent in time.

[0043] Example 2

[0044] See attached Figure 5 The present application provides an integrated storage and delivery device for a sedimentation agent. Compared with Example 1, in order to further reasonably preserve the sedimentation agent, a threaded through hole is opened at the top of the material pipe 8 above the discharge hopper 7, and the material pipe 8 is threadedly connected with a bolt 29 at the threaded through hole. The bottom end of the bolt 29 is fixedly connected with a cover plate 30, and a sealing gasket is provided at the bottom end of the cover plate 30.

[0045] After the medicine is added, the bolt 29 can be twisted to adjust the cover plate 30 to be lowered to cover the discharge hopper 7. At this time, the cover plate 30 can close the box body 1 by blocking the discharge hopper 7 to facilitate the storage of the medicine.

[0046] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A device for storing and delivering a sedimentation agent, comprising a box (1), characterized in that: The box (1) is used to contain medicines, and a stirring mechanism, a conveying mechanism, a swinging mechanism and a driving mechanism are provided in the box (1), and the driving mechanism is used to drive the stirring mechanism, the conveying mechanism and the swinging mechanism to operate; The stirring mechanism comprises a plurality of stirring blades (3), and the stirring mechanism stirs the medicine liquid through the stirring blades (3); the swing mechanism comprises a turntable (4) and a material pipe (8), a connecting rod (6) is provided between the turntable (4) and the material pipe (8), and the turntable (4) pushes and pulls the material pipe (8) through the connecting rod (6) to generate deflection; the conveying mechanism comprises a material barrel (10), and a spiral blade (12) is provided inside the material barrel (10), and the conveying mechanism conveys the medicine liquid into the material pipe (8) through the spiral blade (12); one end of the material pipe (8) is fixedly connected to a cover shell (9), and the material pipe (8) sprays the medicine through the cover shell (9).

2. The device for storing and delivering a sedimentation agent according to claim 1, characterized in that: The box body (1) is provided with first through holes at one side of the top and bottom ends, the box body (1) is rotatably connected to the same connecting shaft (2) at the two first through holes, a plurality of stirring blades (3) are equidistantly fixedly connected to the outside of the rod body of the connecting shaft (2) in the box body (1), the turntable (4) is fixedly connected to the top end of the connecting shaft (2), a connecting pile (5) is rotatably connected to one side of the top end of the turntable (4), and both ends of the connecting rod (6) are rotatably connected to the connecting pile (5) and the material pipe (8) respectively.

3. The device for storing and delivering a sedimentation agent according to claim 2, characterized in that: A second through hole is provided at the other side of the bottom end of the box body (1), and a rotating shaft (11) is rotatably connected to the box body (1) at the second through hole. A driving wheel (13) is connected to the outer side of the bottom end of the rotating shaft (11) via a key, and a driven wheel (18) is connected to the bottom end of the connecting shaft (2) via a key. Both the driving wheel (13) and the driven wheel (18) are belt pulleys. The driving wheel (13) and the driven wheel (18) are externally sleeved with the same belt (16), and the diameter of the driving wheel (13) is smaller than the diameter of the driven wheel (18).

4. The device for storing and delivering a sedimentation agent according to claim 3, characterized in that: The inner wall of the bottom end of the box body (1) is fixedly connected to a material barrel (10) outside the rotating shaft (11); the spiral blade (12) is located outside the rod body of the rotating shaft (11) in the material barrel (10); the top end of the material barrel (10) is fixedly connected to a discharge hopper (7); the discharge hopper (7) is in a truncated cone shape; a third through hole is opened on one side of the top end of the box body (1); the top end of the discharge hopper (7) extends to the outside of the box body (1) at the third through hole; and the material pipe (8) is rotatably connected to the top end of the discharge hopper (7).

5. The device for storing and delivering a sedimentation agent according to claim 3, characterized in that: A base (17) is provided below the box (1), and a plurality of legs (14) are fixedly connected at equal intervals to the outer side between the base (17) and the box (1). The driving mechanism comprises a motor (15), and the top end of the output shaft of the motor (15) is fixedly connected to the rotating shaft (11). An observation window (28) is provided on one side of the box (1), and a panel is fixedly connected to the observation window (28) of the box (1), and the color of the panel is transparent brown.

6. The device for storing and delivering a sedimentation agent according to claim 1, characterized in that: A plurality of support rods (19) are fixedly connected to the middle part of the inner side of the cover shell (9), and the bottom ends of the plurality of support rods (19) are fixedly connected to the same support (20), a fourth through hole is provided on the support (20), and a reciprocating screw (24) is rotatably connected to the support (20) at the fourth through hole, and the top end of the support (20) is fixedly connected to a housing (25) outside the fourth through hole, and a motor (26) is fixedly connected to the inside of the housing (25), and the bottom end of the output shaft of the motor (26) is fixedly connected to the reciprocating screw (24).

7. The device for storing and delivering a sedimentation agent according to claim 6, characterized in that: The reciprocating screw (24) is externally threadedly connected to a nut (23), the nut (23) is externally rotatably connected to a plurality of support rods (22), the outer side of the support (20) is rotatably connected to a plurality of connecting plates (21), the number of the connecting plates (21) and the number of the support rods (22) are the same and correspond one to one, the top end of the support rod (22) is rotatably connected to the connecting plate (21), and a connecting sheet (27) is fixedly connected between two adjacent connecting plates (21), and the material of the connecting sheet (27) is rubber.

8. The device for storing and delivering a sedimentation agent according to claim 1, characterized in that: A threaded through hole is formed at the top of the material pipe (8) above the discharge hopper (7), a bolt (29) is threadedly connected to the material pipe (8) at the threaded through hole, a cover plate (30) is fixedly connected to the bottom end of the bolt (29), and a sealing gasket is provided at the bottom end of the cover plate (30).

Citation Information

Patent Citations

  • A reagent dosing device for treating heavy metal wastewater

    CN110272109B