Wastewater treatment equipment

Abstract

The utility model relates to wastewater treatment equipment which comprises a tank body (1), a stirring device (2) and a water inlet device (3), a discharge port (11) is arranged at the upper part of the side wall of the tank body, a water inlet (12) is arranged at the lower part of the side wall of the tank body, a slag discharge port (13) is arranged at the bottom of the tank body, and a treatment cavity (15) is formed inside the tank body. The stirring mechanism comprises a stirring power device and a stirring rod (22), the stirring power device is fixedly arranged at the top of the tank body, the upper end of the stirring rod is connected with the stirring power device, the lower end of the stirring rod extends into the treatment cavity, and stirring blades (23) are arranged at the end part of the stirring rod. The water inlet device comprises a water inlet pipe (31) and a water inlet distribution pipe (32), the water inlet pipe is fixedly connected with the water inlet, a dosing port (311) is formed in the water inlet pipe, the water inlet distribution pipe is annular, is arranged at the bottom of the treatment cavity (15) and is communicated with the water inlet, and a plurality of water outlets (321) which are uniformly distributed are formed in the water inlet distribution pipe. The acid wastewater treatment device can be used for quickly and efficiently treating acid wastewater.

Description

Technical Field

[0001] The utility model relates to wastewater treatment equipment, and more particularly to the structure of the wastewater treatment equipment. Background Art

[0002] Vinyl chloride is a colorless liquid with a pungent odor. It is mainly used to manufacture plastic products such as polyvinyl chloride. It is widely used in plastic products in the fields of construction, automobiles, electronics, medical care, packaging, etc. Vinyl chloride is a volatile organic compound that has potential hazards to human body and environment.

[0003] Acidic wastewater, such as process wastewater and equipment flushing water, generated during the production of vinyl chloride, is acidic wastewater. Direct discharge of acidic wastewater will cause serious damage to the environment. The existing method usually pours a neutralizer into the acidic wastewater, mixes the neutralizer with the acidic wastewater, and then conducts a neutralization reaction. The pH value of the treated acidic wastewater is then sampled and tested. Once the pH value meets the standard, the treated wastewater is discharged.

[0004] Due to the large amount of acidic wastewater discharged during production, the efficiency of natural mixing of neutralizers and acidic wastewater in existing methods is slow, and the neutralizers and acidic wastewater cannot be mixed evenly. Usually, the neutralizer can only be mixed evenly in the dosing area or the upper layer of the wastewater, resulting in a complete reaction between the acidic wastewater and the neutralizer, and the acidic wastewater treatment effect is poor. Moreover, when sampling and testing the pH value of the wastewater, usually only the upper layer of the wastewater can be sampled, which has great limitations and cannot ensure that all wastewater is completely reacted. After discharge, the environment is polluted. In addition, the treatment efficiency of the existing method is low, affecting normal production.

[0005] In addition, acidic wastewater contains impurities such as waste slag and metal debris, which may cause blockage if entering subsequent pipelines and may cause pollution if discharged.

[0006] The purpose of the utility model is to solve the problems of incomplete treatment of acidic wastewater and low treatment efficiency in existing methods. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a wastewater treatment device, including a tank body 1, a stirring device 2 and a water inlet device 3. The upper part of the side wall of the tank body 1 is provided with a discharge port 11, the lower part of the side wall of the tank body 1 is provided with a water inlet 12, and the bottom of the tank body 1 is provided with a slag discharge port 13, forming a processing chamber 15 inside. The stirring mechanism includes a stirring power device and a stirring rod 22. The stirring power device is fixedly provided on the top of the tank body 1. The stirring rod 22 is vertically arranged, with the upper end connected to the stirring power device and the lower end extending through the tank body 1 into the processing chamber 15. The lower end of the stirring rod 22 is provided with a stirring blade 23.

[0008] The water inlet device 3 includes a water inlet pipe 31 and a water inlet distribution pipe 32. The water inlet pipe 31 is arranged on the outside of the tank body 1 and is fixedly connected to the water inlet 12. A dosing port 311 is provided on the side wall of the water inlet pipe 31. The water inlet distribution pipe 32 is annular and is horizontally arranged at the bottom of the treatment chamber 15. It is connected to the water inlet 12 through a connecting pipe 33. A plurality of evenly distributed water outlets 321 are provided on the water inlet distribution pipe 32.

[0009] When the utility model is used, the water inlet pipe 31 is connected to the acidic wastewater pipeline, and the dosing port 311 is connected to the neutralizer pipeline. According to the flow rate of the acidic wastewater, an appropriate amount of neutralizer is added to the water inlet pipe 31, so that the neutralizer and the acidic wastewater are preliminarily mixed in the water inlet pipe 31 and then evenly dispersed at the bottom of the treatment chamber 15 through the water inlet distribution pipe 32. The stirring power device drives the stirring blade 23 to rotate through the stirring rod 22, and the stirring blade 23 quickly stirs the neutralizer and the acidic wastewater entering the treatment chamber 15, so that the neutralizer and the acidic wastewater rotate quickly in the treatment chamber 15 and are evenly mixed, and the neutralization reaction is quickly carried out. The wastewater reacts completely during the rising process, and the reacted wastewater is discharged from the discharge port 11, and the residual impurities are discharged from the slag discharge port 13 at regular intervals.

[0010] The present invention provides a dosing port 311 on the water inlet pipe 31, so that the neutralizer and acidic wastewater can be initially mixed in the water inlet pipe 31 and evenly enter the treatment chamber 15 in proportion, thereby promoting uniform mixing of the acidic wastewater and the neutralizer. By providing an annular water inlet distribution pipe 32 at the bottom of the treatment chamber 15 and evenly distributed water outlets 321 on the water inlet distribution pipe 32, the neutralizer and acidic wastewater initially mixed in the water inlet pipe 31 can be evenly dispersed at the bottom of the treatment chamber 15 through the water inlet distribution pipe 32. Under the stirring action of the stirring blades 23, the neutralizer and acidic wastewater entering the treatment chamber 15 are quickly mixed and evenly mixed, thereby increasing the reaction speed of the neutralizer and acidic wastewater and allowing the acidic wastewater to react thoroughly. This solves the problem of incomplete treatment of acidic wastewater and low treatment efficiency in existing methods.

[0011] Preferably, a baffle 312 is provided in the water inlet pipe 31, and the baffle 312 is located on the side of the dosing port 311 near the water inlet 12. By providing the baffle 312 in the water inlet pipe 31, turbulent flow of the acidic wastewater can be formed in the water inlet pipe 31, promoting rapid mixing of the acidic wastewater and the neutralizer, and preventing uneven rapid mixing of the acidic wastewater and the neutralizer, which may lead to incomplete treatment of the acidic wastewater.

[0012] Preferably, the water outlet 321 faces the stirring blade 23. By arranging the water outlet 321 toward the stirring blade 23, the acidic wastewater mixed with the neutralizer can be directly stirred by the stirring blade 23 after entering the treatment chamber 15, thereby increasing the mixing speed of the acidic wastewater and the neutralizer and preventing uneven mixing of the acidic wastewater and the neutralizer, which may lead to incomplete treatment of the acidic wastewater.

[0013] Preferably, a guide plate 16 is further included. The guide plate 16 is provided on the inner wall of the tank body 1 , and the guide plate 16 extends upward in a spiral shape along the rotation direction of the stirring blade 23 .

[0014] By arranging a guide plate 16 on the inner wall of the tank body 1 , the acidic wastewater in the treatment chamber 15 can be directed upward, so that the acidic wastewater gradually moves to the upper layer of the solution during the reaction process, and the acidic wastewater is discharged from the discharge port 11 after the reaction is completed.

[0015] Preferably, a spoiler 17 is further included, which is vertically arranged on the inner wall of the tank body 1 and located above the guide plate 16.

[0016] By arranging a spoiler 17 above the guide plate 16 on the inner wall of the tank body 1, the wastewater that rotates and rises with the guide plate 16 in the treatment chamber 15 can be blocked, so that the acidic wastewater forms turbulent flow in the treatment chamber 15, thereby improving the mixing efficiency of the acidic wastewater and the neutralizer, and allowing the acidic wastewater and the neutralizer to react thoroughly.

[0017] Preferably, a filter screen 18 is further included. The filter screen 18 is horizontally arranged in the processing chamber 15 and fixedly connected to the inner wall of the tank body 1 . The filter screen 18 is located between the spoiler 17 and the discharge port 11 .

[0018] Impurities, metal debris, etc. in the wastewater can be filtered through the filter 18 to prevent the impurities and metal debris from entering downstream equipment with the treated wastewater or polluting the environment after discharge.

[0019] Preferably, a spray device 4 is also included, and a spray port 14 is provided on the upper part of the side wall of the tank body 1. The spray device 4 includes a nozzle 41 and a spray pipe 42. The nozzle 41 is fixedly arranged on the top of the processing chamber 15, located above the screen, and is connected to the spray port 14 through the spray pipe 42. The nozzle 41 is provided with multiple nozzles 43 with openings facing the filter 18.

[0020] The spraying device 4 can be used to spray the screen after the equipment has been used for a long time, so as to spray and flush the impurities remaining on the screen and restore the filtering capacity of the screen.

[0021] Preferably, the stirring power device is a stirring motor 21 , and the upper end of the stirring rod 22 is fixedly connected to the rotating shaft of the stirring motor 21 .

[0022] Preferably, a support 5 is provided at the bottom of the tank body 1. The support 5 includes a plurality of support legs 51 evenly distributed along the bottom of the tank body 1. The support legs 51 are vertically arranged, and the upper ends are fixedly connected to the bottom of the tank body 1. The support legs 51 can support the tank body 1 and keep the tank body 1 stable when treating acidic wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 . Schematic diagram of the external structure of the wastewater treatment equipment;

[0024] Figure 2 . Schematic diagram of the internal structure of wastewater treatment equipment;

[0025] Figure 3 . Figure 2 Schematic diagram of the middle AA section;

[0026] Figure 4 .Schematic diagram of the internal structure of the water inlet pipe.

[0027] In the figure, 1. tank body, 11. discharge port, 12. water inlet, 13. slag discharge port, 131. slag discharge valve, 14. spray port, 141. spray valve, 15. processing chamber, 16. guide plate, 17. spoiler, 18. filter, 2. stirring device, 21. stirring motor, 22. stirring rod, 23. stirring blade, 3. water inlet device, 31. water inlet pipe, 311. dosing port, 312. baffle, 32. water inlet distribution pipe, 321. water outlet, 33. connecting pipe, 4. spray device, 41. nozzle, 42. spray pipe, 43. nozzle, 5. bracket, 51. support leg. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2 As shown, the wastewater treatment equipment includes a tank body 1, a stirring device 2, a water inlet device 3, and a spray device 4. A discharge port 11 and a spray port 14 are provided at the upper portion of the side wall of the tank body 1, a water inlet 12 is provided at the lower portion of the side wall of the tank body 1, and a slag discharge port 13 is provided at the bottom of the tank body 1, forming a treatment chamber 15 inside. A bracket 5 is provided at the bottom of the tank body 1.

[0030] The slag discharge port 13 is provided with a slag discharge valve 131 , and the spray port 14 is provided with a spray valve 141 .

[0031] The support 5 includes a plurality of support legs 51 evenly distributed along the bottom of the tank body 1. The support legs 51 are vertically arranged, and the upper ends are fixedly connected to the bottom of the tank body 1. The support legs 51 can support the tank body 1 and keep the tank body 1 stable when treating acidic wastewater.

[0032] A guide plate 16 , a spoiler 17 and a filter screen 18 are provided in the processing chamber 15 . The guide plate 16 is provided on the inner wall of the tank body 1 and extends upward in a spiral shape along the rotation direction of the stirring blade 23 .

[0033] The guide plate 16 can guide the acidic wastewater in the treatment chamber 15 upward while rotating under the stirring action, so that the acidic wastewater gradually moves to the upper layer of the solution during the reaction process, and the acidic wastewater is discharged from the discharge port 11 after the reaction is completed.

[0034] The spoiler 17 is vertically mounted on the inner sidewall of the tank 1, above the guide plate 16. The spoiler 17 blocks and disrupts the acidic wastewater in the treatment chamber 15 as it rises along with the rotation of the guide plate 16, causing the acidic wastewater to form a turbulent flow in the treatment chamber 15, thereby improving the mixing efficiency of the acidic wastewater and the neutralizer and ensuring a thorough reaction between the acidic wastewater and the neutralizer.

[0035] The filter screen 18 is horizontally disposed within the treatment chamber 15 and fixedly connected to the inner wall of the tank body 1. The filter screen 18 is located between the spoiler 17 and the discharge port 11. The filter screen 18 can filter impurities, metal debris, etc. in the acidic wastewater, preventing them from entering downstream equipment with the treated wastewater or polluting the environment after discharge.

[0036] The stirring mechanism includes a stirring power device and a stirring rod 22. The stirring power device is a stirring motor 21. The stirring motor 21 is fixedly arranged on the top of the tank body 1. The stirring rod 22 is vertically arranged. The upper end is fixedly connected to the rotating shaft of the stirring motor 21, and the lower end passes through the tank body 1 and extends into the processing chamber 15. A stirring blade 23 is provided at the lower end of the stirring rod 22.

[0037] The stirring motor 21 drives the stirring blade 23 to rotate through the stirring rod 22, and the stirring blade 23 quickly stirs the neutralizer and acidic wastewater entering the treatment chamber 15, so that the neutralizer and acidic wastewater rotate quickly in the treatment chamber 15 and are mixed evenly.

[0038] The water inlet device 3 includes a water inlet pipe 31 and a water inlet distribution pipe 32. The water inlet pipe 31 is arranged outside the tank body 1 and is fixedly connected to the water inlet 12. A dosing port 311 is arranged on the side wall of the water inlet pipe 31. A baffle 312 is arranged inside the water inlet pipe 31. The baffle 312 is located on the side of the dosing port 311 close to the water inlet 12. Figure 4 .

[0039] By providing a baffle 312 in the water inlet pipe 31, the acidic wastewater can form turbulent flow in the water inlet pipe 31, promoting rapid mixing of the acidic wastewater and the neutralizer, and preventing the acidic wastewater and the neutralizer from rapidly mixing unevenly, resulting in incomplete treatment of the acidic wastewater.

[0040] The water inlet distribution pipe 32 is annular and horizontally arranged at the bottom of the processing chamber 15. It is connected to the water inlet 12 through the connecting pipe 33. The water inlet distribution pipe 32 is provided with a plurality of evenly distributed water outlets 321. The water outlets 321 face the stirring blades 23. Figure 3 .

[0041] A water inlet distribution pipe 32 is provided with a water outlet 321 facing the stirring blade 23. The neutralizer and the acidic wastewater preliminarily mixed in the water inlet pipe 31 can be evenly dispersed at the bottom of the treatment chamber 15 through the water inlet distribution pipe 32 and directly stirred by the stirring blade 23, thereby increasing the mixing speed of the acidic wastewater and the neutralizer and preventing uneven mixing of the acidic wastewater and the neutralizer, which may lead to incomplete treatment of the acidic wastewater.

[0042] The spray device 4 includes a spray head 41 and a spray pipe 42. The spray head 41 is fixedly arranged at the top of the processing chamber 15, above the screen, and is connected to the spray port 14 through the spray pipe 42. The spray head 41 is provided with multiple nozzles 43 with openings facing the filter 18. When there are a lot of impurities remaining on the screen, the screen can be sprayed by the spray device 4 to rinse the impurities remaining on the screen and restore the filtering capacity of the screen.

[0043] When the utility model is used, the water inlet pipe 31 is connected to the acidic wastewater pipeline, and the dosing port 311 is connected to the neutralizer pipeline. According to the flow rate of the acidic wastewater, an appropriate amount of neutralizer is added to the water inlet pipe 31, so that the neutralizer and the acidic wastewater are preliminarily mixed in the water inlet pipe 31 and then evenly dispersed at the bottom of the treatment chamber 15 through the water inlet distribution pipe 32. The stirring power device drives the stirring blade 23 to rotate through the stirring rod 22, and the stirring blade 23 quickly stirs the neutralizer and the acidic wastewater entering the treatment chamber 15, so that the neutralizer and the acidic wastewater rotate rapidly in the treatment chamber 15. During the reaction process of the acidic wastewater and the neutralizer, they gradually rise along the guide plate 16 and are further mixed evenly after being disturbed by the spoiler 17. After the acidic wastewater reacts completely, it is discharged from the discharge port 11, and the residual impurities are regularly discharged from the slag discharge port 13. After the equipment has been used for a long time, the screen can be sprayed by the spraying device 4 to spray and flush the impurities remaining on the screen, so that the screen can restore its filtering capacity.

[0044] The utility model provides a dosing port 311 on the water inlet pipe 31, so that the neutralizer and the acidic wastewater can be preliminarily mixed in the water inlet pipe 31. A baffle 312 is provided in the water inlet pipe 31, so that the acidic wastewater can form turbulent flow in the water inlet pipe 31, thereby promoting rapid mixing of the acidic wastewater and the neutralizer, and preventing the acidic wastewater and the neutralizer from being mixed unevenly quickly, resulting in incomplete treatment of the acidic wastewater.

[0045] An annular water inlet distribution pipe 32 is provided at the bottom of the treatment chamber 15, and evenly distributed water outlets 321 are provided on the water inlet distribution pipe 32, so that the neutralizer and acidic wastewater preliminarily mixed in the water inlet distribution pipe 31 can be evenly dispersed at the bottom of the treatment chamber 15 through the water inlet distribution pipe 32. Under the stirring action of the stirring blade 23, the neutralizer and acidic wastewater entering the treatment chamber 15 are quickly mixed and evenly mixed, thereby increasing the reaction speed of the neutralizer and acidic wastewater and allowing the acidic wastewater to react thoroughly.

[0046] A guide plate 16 is provided on the inner sidewall of the tank body 1 to guide the acidic wastewater in the treatment chamber 15 upward, causing it to gradually move to the upper layer of the solution during the reaction process, and then be discharged from the discharge port 11 after the reaction is completed. A spoiler 17 is provided on the inner sidewall of the tank body 1 to block the wastewater in the treatment chamber 15 that rotates and rises with the guide plate 16, causing the acidic wastewater to form a turbulent flow in the treatment chamber 15, improving the mixing efficiency of the acidic wastewater and the neutralizer, and ensuring a thorough reaction between the acidic wastewater and the neutralizer.

[0047] The filter 18 can filter out impurities, metal debris, etc. in the wastewater, preventing them from entering downstream equipment or polluting the environment after discharge with the treated wastewater. The spray device 4 can spray the screen when there are a lot of impurities remaining on the screen, spraying and flushing the impurities remaining on the screen to restore the screen's filtering capacity.

[0048] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. Wastewater treatment equipment, characterized in that: It comprises a tank body (1), a stirring device (2) and a water inlet device (3). The upper part of the side wall of the tank body (1) is provided with a discharge port (11), the lower part of the side wall of the tank body (1) is provided with a water inlet (12), the bottom of the tank body (1) is provided with a slag discharge port (13), and a processing chamber (15) is formed inside; The stirring device comprises a stirring power device and a stirring rod (22), and the stirring power device is fixedly arranged on the top of the tank body (1); The stirring rod (22) is arranged vertically, the upper end of which is connected to the stirring power device, and the lower end of which passes through the tank body (1) and extends into the processing chamber (15). A stirring blade (23) is arranged at the lower end of the stirring rod (22); The water inlet device (3) comprises a water inlet pipe (31) and a water inlet distribution pipe (32). The water inlet pipe (31) is arranged outside the tank body (1) and is fixedly connected to the water inlet (12); a drug adding port (311) is arranged on the side wall of the water inlet pipe (31); The water inlet distribution pipe (32) is annular and horizontally arranged at the bottom of the processing chamber (15), and is connected to the water inlet (12) through a connecting pipe (33). The water inlet distribution pipe (32) is provided with a plurality of evenly distributed water outlets (321).

2. The wastewater treatment equipment according to claim 1, characterized in that: The water inlet pipe (31) is provided with a baffle (312). The baffle (312) is located on a side of the drug adding port (311) close to the water inlet (12).

3. The wastewater treatment equipment according to claim 2, characterized in that: The water outlet (321) faces the stirring blade (23).

4. The wastewater treatment equipment according to claim 3, characterized in that: Also includes a guide plate (16), The guide plate (16) is arranged on the inner side wall of the tank body (1), and the guide plate (16) extends upward in a spiral shape along the rotation direction of the stirring blade (23).

5. The wastewater treatment equipment according to claim 4, characterized in that: Also includes a spoiler (17), The spoiler (17) is vertically arranged on the inner wall of the tank body (1) and is located above the guide plate (16).

6. The wastewater treatment equipment according to claim 5, characterized in that: Also includes a filter (18), The filter screen (18) is horizontally arranged in the processing chamber (15) and fixedly connected to the inner wall of the tank body (1). The filter screen (18) is located between the spoiler (17) and the discharge port (11).

7. The wastewater treatment equipment according to claim 6, characterized in that: It also includes a spray device (4), The upper part of the side wall of the tank body (1) is provided with a spray port (14). The spray device (4) comprises a spray head (41) and a spray pipe (42). The spray head (41) is fixedly arranged at the top of the processing chamber (15), located above the screen, and is connected to the spray port (14) through a spray pipe (42). The spray head (41) is provided with a plurality of nozzles (43) with openings facing the filter screen (18).

8. The wastewater treatment equipment according to claim 7, characterized in that: The stirring power device is a stirring motor (21); The upper end of the stirring rod (22) is fixedly connected to the rotating shaft of the stirring motor (21).

9. The wastewater treatment equipment according to any one of claims 1 to 8, characterized in that: A bracket (5) is provided at the bottom of the tank body (1). The support (5) comprises a plurality of support legs (51) evenly distributed along the bottom of the tank body (1); The supporting legs (51) are arranged vertically, and the upper ends are fixedly connected to the bottom of the tank body (1).

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