Acrylamide production wastewater treatment equipment

Abstract

The utility model discloses acrylamide production wastewater treatment equipment, relates to the technical field of wastewater treatment, solves the problem that the wastewater treatment efficiency is reduced due to the fact that the mixing speed of pH regulating liquid and wastewater is relatively slow, and comprises a neutralization regulating tank and a stirring and dosing assembly. Through the arrangement of the stirring and dosing assembly, pH adjusting liquid can be directly and uniformly added into different areas in waste water, so that the pH adjusting liquid is in rapid contact with the waste water, the mixing speed of the pH adjusting liquid and the waste water is improved, and in the dosing and mixing process, the driving assembly can be started to drive the second guide pipe to stir the waste water, so that the pH adjusting liquid is uniformly added into the waste water. The mixing of the pH adjusting liquid and the wastewater is accelerated, and the position of the chemical outlet pipe can be continuously adjusted, so that the chemical feeding is more uniform, and the mixing rate of the pH adjusting liquid and the wastewater is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to acrylamide production wastewater treatment equipment. Background Art

[0002] Acrylamide polymers and derivatives are widely used in industries such as petroleum, pharmaceuticals, papermaking, textiles, mining, water treatment, desertification soil improvement, seed coating, aquaculture, and food processing. Known as a versatile additive, they are made from the petrochemical product acrylonitrile. Wastewater from the acrylamide industry primarily originates from the fermentation liquid membrane separation process and the acrylamide refining process. The current treatment solution relies on conventional wastewater treatment technologies, consisting of two main steps: anaerobic and aerobic treatment. However, the treated wastewater still contains significant amounts of suspended microbial matter and high levels of ammonia and nitrogen, making conventional treatment insufficient for drainage.

[0003] In order to improve the above problems, the existing Chinese patent with announcement number CN102381817B discloses a treatment system and a treatment method for acrylamide production wastewater, including a neutralization regulating tank with a wastewater inlet and a pH regulating liquid inlet; an upflow anaerobic sludge blanket reactor with a first liquid inlet, a first liquid outlet, a polyaluminum chloride inlet, a polyacrylamide inlet and a sludge outlet; a coagulation sedimentation vessel with a second liquid inlet connected to the liquid outlet of the neutralization regulating tank and a second liquid inlet connected to the first liquid inlet. a second liquid outlet connected to the aforementioned third liquid inlet, a third liquid outlet and a reflux outlet; a secondary sedimentation tank, having a fourth liquid inlet connected to the aforementioned first liquid outlet, a fourth liquid outlet connected to the aforementioned third liquid inlet and a filtrate reflux outlet connected to the aforementioned reflux outlet; a discharge tank or drainage network, having a fifth liquid inlet connected to the aforementioned third liquid outlet; and a sludge thickening tank, connected to the aforementioned sludge outlet and reflux outlet and having a fifth liquid outlet connected to the aforementioned neutralization and regulating tank.

[0004] Regarding the above-mentioned related technology, the inventors found that there are at least the following problems in this technology: when adjusting the pH value of wastewater in the neutralization adjustment tank, the pH adjusting liquid is usually added from the dosing port at the top of the neutralization adjustment tank. After the pH adjusting liquid enters the neutralization adjustment tank, it remains at a single position in the wastewater, diffuses relatively slowly in the wastewater, and the mixing rate of the pH adjusting liquid and the wastewater is slow, resulting in reduced wastewater treatment efficiency. Utility Model Content

[0005] In order to improve the problem that the mixing rate of pH regulating liquid and wastewater is slow, resulting in reduced wastewater treatment efficiency, the utility model provides an acrylamide production wastewater treatment device.

[0006] The utility model provides an acrylamide production wastewater treatment device, which adopts the following technical solutions:

[0007] A device for treating acrylamide production wastewater comprises a neutralization and adjustment tank and a stirring and dosing assembly, wherein the stirring and dosing assembly comprises a dosing pipe, a first conduit, a second conduit, a drug discharge pipe, and a drive assembly, wherein the dosing pipe is rotatably connected to the upper end of the first conduit, the first conduit is arranged vertically, and the first conduit is rotatably mounted at the center of the top of the neutralization and adjustment tank, the second conduit is fixedly connected to the surface of the first conduit, there are multiple second conduits, and the multiple second conduits are evenly distributed on both sides of the first conduit, the drug discharge pipe is fixedly connected to the bottom of the second conduit, there are multiple drug discharge pipes, and the multiple drug discharge pipes are evenly distributed, and the drive assembly is mounted on the upper end of the first conduit and is used to drive the first conduit to rotate.

[0008] By adopting the above technical solution and setting the stirring and dosing component, when adding the pH adjusting liquid to the neutralization adjustment tank to neutralize and adjust the wastewater, the pH adjusting liquid can be added to the dosing pipe, and the pH adjusting liquid enters the first conduit along the dosing pipe, and then enters the multiple second conduits respectively from the first conduit, and is then discharged from the multiple discharge pipes at the bottom of the second conduit, so that the pH adjusting liquid is directly and evenly added to different areas of the wastewater, so that the pH adjusting liquid and the wastewater are quickly in contact, thereby improving the mixing rate of the pH adjusting liquid and the wastewater. By setting the driving component, during the dosing and mixing process, the driving component can be started to drive the first conduit to rotate, so that the first conduit drives the second conduit to rotate, which not only enables the second conduit to stir the wastewater and accelerate the mixing of the pH adjusting liquid and the wastewater, but also enables the position of the discharge pipe to be continuously adjusted to make the dosing more uniform, thereby further improving the mixing rate of the pH adjusting liquid and the wastewater.

[0009] Optionally, a wastewater inlet pipe is fixedly connected to one side of the top of the neutralization and adjustment tank.

[0010] By adopting the above technical solution and setting the wastewater inlet pipe, when treating acrylamide production wastewater, the acrylamide production wastewater can be added from the wastewater inlet pipe into the neutralization adjustment tank for pH adjustment.

[0011] Optionally, a wastewater discharge pipe is fixedly connected to the bottom of the neutralization adjustment tank, and a valve is installed on the wastewater discharge pipe.

[0012] By adopting the above technical solution and setting up the wastewater discharge pipe, after the wastewater is neutralized and adjusted, the valve can be opened to discharge the wastewater from the wastewater discharge pipe into the coagulation sedimentation tank for the next process.

[0013] Optionally, the second conduit is arranged to be inclined downward in a direction away from the first conduit.

[0014] By adopting the above technical solution and arranging the second conduit at an angle, the pH regulating liquid in the first conduit can flow more smoothly after entering the second conduit.

[0015] Optionally, a cavity is provided inside the medicine outlet tube, a through hole communicating with the cavity is provided at one end of the second conduit close to the cavity, a sealing ball is provided on one side of the cavity close to the through hole, and a spring is abutted against the side of the sealing ball away from the through hole.

[0016] By adopting the above technical solution, through the arrangement of the cavity through-hole, the sealing ball and the spring, when adding medicine, the fluid pressure of the pH adjusting liquid will overcome the elastic force applied by the spring on the sealing ball, so that the sealing ball moves away from the through-hole, allowing the pH adjusting liquid to enter the cavity and be discharged from the medicine outlet pipe. When no medicine is needed, the spring will apply elastic force to the sealing ball, so that the sealing ball blocks the through-hole, thereby preventing wastewater from flowing back into the second conduit.

[0017] Optionally, a cover is fixedly mounted on the top of the neutralization and adjustment tank, and the drive assembly is arranged in the cover.

[0018] By adopting the above technical solution and setting the cover, the drive assembly can be protected.

[0019] Optionally, the drive assembly includes a motor, a first bevel gear and a second bevel gear, the motor is fixedly mounted in the cover, the first bevel gear is fixedly mounted on the motor output shaft, and the second bevel gear is fixedly mounted on the first conduit and meshes with the first bevel gear.

[0020] By adopting the above technical solution and setting the driving component, during the dosing and mixing process, the motor can be started to drive the first bevel gear to rotate, so that the first bevel gear drives the second bevel gear to rotate, so that the second bevel gear drives the first conduit to rotate, and so that the first conduit drives the second conduit to rotate. This not only enables the second conduit to stir the wastewater and accelerate the mixing of the pH adjusting liquid and the wastewater, but also continuously adjusts the position of the drug outlet pipe to make the dosing more uniform, further improving the mixing rate of the pH adjusting liquid and the wastewater. Through the setting of the wastewater discharge pipe, after the wastewater is neutralized and adjusted, the valve can be opened to discharge the wastewater from the wastewater discharge pipe into the coagulation sedimentation tank for the next process.

[0021] Optionally, a rotary joint is provided between the upper end of the first conduit and the dosing tube, and the first conduit and the dosing tube are rotatably connected via the rotary joint.

[0022] By adopting the above technical solution and setting the rotary joint, the first conduit and the dosing tube can produce relative rotation.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. The utility model is provided with a stirring and dosing component. When adding pH adjusting liquid to the neutralization adjustment tank to neutralize and adjust the wastewater, the pH adjusting liquid can be added to the dosing pipe. The pH adjusting liquid flows along the dosing pipe into the first conduit, then enters multiple second conduits from the first conduit, and is discharged from multiple discharge pipes at the bottom of the second conduits. The pH adjusting liquid is directly and evenly added to different areas of the wastewater, so that the pH adjusting liquid quickly contacts the wastewater, thereby improving the mixing rate of the pH adjusting liquid and the wastewater.

[0025] 2. The utility model is provided with a drive assembly. During the dosing and mixing process, the motor can be started to drive the first bevel gear to rotate, so that the first bevel gear drives the second bevel gear to rotate, so that the second bevel gear drives the first conduit to rotate, and so that the first conduit drives the second conduit to rotate. This not only enables the second conduit to stir the wastewater and accelerate the mixing of the pH regulating liquid and the wastewater, but also continuously adjusts the position of the drug outlet pipe to make the dosing more uniform, further improving the mixing rate of the pH regulating liquid and the wastewater.

[0026] 3. The utility model is provided with a cavity through-hole, a sealing ball and a spring. When adding medicine, the fluid pressure of the pH adjusting liquid will overcome the elastic force applied by the spring on the sealing ball, so that the sealing ball moves away from the through-hole, allowing the pH adjusting liquid to enter the cavity and be discharged from the medicine outlet pipe. When adding medicine is not needed, the spring will apply elastic force to the sealing ball, so that the sealing ball blocks the through-hole, thereby preventing wastewater from flowing back into the second conduit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0028] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the stirring and dosing component of the utility model.

[0030] Figure 4 This utility model Figure 3 A magnified view of the structure in the middle.

[0031] Description of reference numerals:

[0032] 1. Neutralization and adjustment tank; 11. Wastewater inlet pipe; 12. Wastewater discharge pipe; 13. Cover; 2. Stirring and dosing assembly; 21. Dosing pipe; 22. First conduit; 23. Second conduit; 24. Drug outlet pipe; 25. Drive assembly; 251. Motor; 252. First bevel gear; 253. Second bevel gear; 26. Through hole; 27. Sealing ball; 28. Spring; 29. Rotary joint. DETAILED DESCRIPTION

[0033] The following is in conjunction with the appended drawings in the embodiment of the present utility model. Figure 1-4 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0034] Please refer to Figure 1-2 An acrylamide production wastewater treatment equipment includes a neutralization and adjustment tank 1 and a stirring and dosing component 2. A wastewater inlet pipe 11 is fixedly connected to one side of the top of the neutralization and adjustment tank 1. Through the setting of the wastewater inlet pipe 11, when treating acrylamide production wastewater, the acrylamide production wastewater can be added into the neutralization and adjustment tank 1 from the wastewater inlet pipe 11 for pH adjustment. A wastewater discharge pipe 12 is fixedly connected to the bottom of the neutralization and adjustment tank 1. A valve is installed on the wastewater discharge pipe 12. Through the setting of the wastewater discharge pipe 12, after the wastewater is neutralized and adjusted, the valve can be opened to discharge the wastewater from the wastewater discharge pipe 12 into a coagulation sedimentation tank for the next process.

[0035] Reference Figure 2 and Figure 3 The stirring and dosing component 2 includes a dosing pipe 21, a first conduit 22, a second conduit 23, a drug outlet pipe 24 and a drive component 25. The dosing pipe 21 is rotatably connected to the upper end of the first conduit 22. When dosing, the pH regulating liquid can be added to the dosing pipe 21 through the booster device. A rotary joint 29 is provided between the upper end of the first conduit 22 and the dosing pipe 21. The first conduit 22 and the dosing pipe 21 are rotatably connected through the rotary joint 29. The setting of the rotary joint 29 enables the first conduit 22 and the dosing pipe 21 to rotate relative to each other. The first conduit 22 is arranged vertically and is rotatably installed at the center of the top of the neutralization and adjustment tank 1. The second conduit 23 is fixedly connected to the surface of the first conduit 22. The second conduit 23 has multiple , multiple second conduits 23 are evenly distributed on both sides of the first conduit 22, and the drug outlet pipes 24 are fixedly connected to the bottom of the second conduit 23. There are multiple drug outlet pipes 24, and the multiple drug outlet pipes 24 are evenly distributed. Through the setting of the stirring and dosing component 2, when adding pH regulating liquid to the neutralization adjustment tank 1 to neutralize and adjust the wastewater, the pH regulating liquid can be added to the dosing pipe 21, and the pH regulating liquid enters the first conduit 22 along the dosing pipe 21, and then enters the multiple second conduits 23 from the first conduit 22, and then is discharged from the multiple drug outlet pipes 24 at the bottom of the second conduit 23. The pH regulating liquid is directly and evenly added to different areas of the wastewater, so that the pH regulating liquid quickly contacts the wastewater, thereby improving the mixing rate of the pH regulating liquid and the wastewater.

[0036] The second conduit 23 is arranged downwardly and tilted in a direction away from the first conduit 22 . By tilting the second conduit 23 , the pH regulating liquid in the first conduit 22 can flow more smoothly after entering the second conduit 23 .

[0037] Reference Figure 3 and Figure 4 A cavity is defined inside the drug outlet pipe 24, and a through hole 26 communicating with the cavity is defined at one end of the second conduit 23 close to the cavity. A sealing ball 27 is provided on the side of the cavity close to the through hole 26, and a spring 28 is abutted on the side of the sealing ball 27 away from the through hole 26. Through the arrangement of the cavity through hole 26, the sealing ball 27 and the spring 28, when adding medicine, the fluid pressure of the pH regulating liquid will overcome the elastic force applied by the spring 28 to the sealing ball 27, causing the sealing ball 27 to move away from the through hole 26, allowing the pH regulating liquid to enter the cavity and be discharged from the drug outlet pipe 24. When no medicine is needed, the spring 28 will apply elastic force to the sealing ball 27, causing the sealing ball 27 to block the through hole 26, thereby preventing wastewater from flowing back into the second conduit 23.

[0038] Reference Figure 1 and Figure 2 The driving assembly 25 is installed at the upper end of the first conduit 22 and is used to drive the first conduit 22 to rotate. A cover 13 is fixedly installed on the top of the neutralization and adjustment tank 1. The driving assembly 25 is arranged in the cover 13. The setting of the cover 13 can protect the driving assembly 25. The driving assembly 25 includes a motor 251, a first bevel gear 252 and a second bevel gear 253. The motor 251 is fixedly mounted in the cover 13, the first bevel gear 252 is fixedly mounted on the output shaft of the motor 251, and the second bevel gear 253 is fixedly mounted on the first conduit 22 and meshes with the first bevel gear 252. Through the setting of the driving assembly 25, during the dosing and mixing process, the motor 251 can be started to drive the first bevel gear 252 to rotate, so that the first bevel gear 252 drives the second bevel gear 253 to rotate, so that the second bevel gear 253 drives the first conduit 22 to rotate, and the first conduit 22 drives the second conduit 23 to rotate. This not only enables the second conduit 23 to stir the wastewater and accelerate the mixing of the pH regulating liquid and the wastewater, but also continuously adjusts the position of the drug outlet pipe 24 to make the dosing more uniform, thereby further improving the mixing rate of the pH regulating liquid and the wastewater.

[0039] The implementation principle of the present invention is as follows: by setting the wastewater inlet pipe 11, when treating acrylamide production wastewater, the acrylamide production wastewater can be added from the wastewater inlet pipe 11 to the neutralization adjustment tank 1 for pH adjustment; by setting the stirring and dosing component 2, when adding pH adjusting liquid to the neutralization adjustment tank 1 to neutralize and adjust the wastewater, the pH adjusting liquid can be added to the dosing pipe 21, and the pH adjusting liquid flows along the dosing pipe 21 into the first conduit 22, and then respectively enters the plurality of second conduits 23 from the first conduit 22, and then is discharged from the plurality of discharge pipes 24 at the bottom of the second conduit 23, directly and evenly adding the pH adjusting liquid to different areas of the wastewater, so that the pH adjusting liquid quickly contacts the wastewater, thereby improving the pH of the wastewater. The mixing rate of water is controlled by the setting of the driving component 25. During the dosing and mixing process, the motor 251 can be started to drive the first bevel gear 252 to rotate, so that the first bevel gear 252 drives the second bevel gear 253 to rotate, so that the second bevel gear 253 drives the first conduit 22 to rotate, and the first conduit 22 drives the second conduit 23 to rotate. This not only enables the second conduit 23 to stir the wastewater and accelerate the mixing of the pH adjusting liquid and the wastewater, but also continuously adjusts the position of the drug outlet pipe 24 to make the dosing more uniform, further improving the mixing rate of the pH adjusting liquid and the wastewater. Through the setting of the wastewater discharge pipe 12, after the wastewater is neutralized and adjusted, the valve can be opened to discharge the wastewater from the wastewater discharge pipe 12 into the coagulation sedimentation tank for the next process.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An acrylamide production wastewater treatment device, comprising a neutralization adjustment tank (1) and a stirring and dosing component (2), characterized in that: The stirring and dosing component (2) includes a dosing pipe (21), a first conduit (22), a second conduit (23), a drug outlet pipe (24) and a driving component (25). The dosing pipe (21) is rotatably connected to the upper end of the first conduit (22). The first conduit (22) is arranged vertically. The first conduit (22) is rotatably installed at the center of the top of the neutralization and adjustment tank (1). The second conduit (23) is fixedly connected to the surface of the first conduit (22). There are multiple second conduits (23), and the multiple second conduits (23) are evenly distributed on both sides of the first conduit (22). The drug outlet pipe (24) is fixedly connected to the bottom of the second conduit (23). There are multiple drug outlet pipes (24), and the multiple drug outlet pipes (24) are evenly distributed. The driving component (25) is installed at the upper end of the first conduit (22) and is used to drive the first conduit (22) to rotate.

2. The acrylamide production wastewater treatment equipment according to claim 1, characterized in that: A wastewater inlet pipe (11) is fixedly connected to one side of the top of the neutralization adjustment tank (1).

3. The acrylamide production wastewater treatment equipment according to claim 1, characterized in that: A wastewater discharge pipe (12) is fixedly connected to the bottom of the neutralization adjustment tank (1), and a valve is installed on the wastewater discharge pipe (12).

4. The acrylamide production wastewater treatment equipment according to claim 1, characterized in that: The second conduit (23) is arranged to be inclined downward in a direction away from the first conduit (22).

5. The acrylamide production wastewater treatment equipment according to claim 1, characterized in that: A cavity is provided inside the medicine outlet tube (24), and a through hole (26) communicating with the cavity is provided at one end of the second conduit (23) close to the cavity. A sealing ball (27) is provided on one side of the cavity close to the through hole (26), and a spring (28) is abutted against the side of the sealing ball (27) away from the through hole (26).

6. The acrylamide production wastewater treatment equipment according to claim 1, characterized in that: A cover shell (13) is fixedly mounted on the top of the neutralization regulating tank (1), and the drive assembly (25) is arranged in the cover shell (13).

7. The acrylamide production wastewater treatment equipment according to claim 6, characterized in that: The drive assembly (25) comprises a motor (251), a first bevel gear (252) and a second bevel gear (253); the motor (251) is fixedly mounted in the housing (13); the first bevel gear (252) is fixedly mounted on the output shaft of the motor (251); and the second bevel gear (253) is fixedly mounted on the first conduit (22) and meshes with the first bevel gear (252).

8. The acrylamide production wastewater treatment equipment according to claim 1, characterized in that: A rotary joint (29) is provided between the upper end of the first conduit (22) and the dosing tube (21), and the first conduit (22) and the dosing tube (21) are rotatably connected via the rotary joint (29).

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