CN215828519U

CN215828519U - High COD is chelant reaction unit for waste water treatment

Info

Publication number: CN215828519U
Application number: CN202122151264.5U
Authority: CN
Inventors: 袁霄; 赵黄浦; 顾晨晨; 刘汨莎
Original assignee: Shanghai Lion Environmental Protection Technology Co ltd
Current assignee: Shanghai Lion Environmental Protection Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-15
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a chelating agent reaction device for high-COD wastewater treatment, which comprises a reaction precipitation barrel, wherein a discharge pipe is arranged at the bottom of the reaction precipitation barrel, a first connecting pipe is arranged on one side of the reaction precipitation barrel and communicated with the reaction precipitation barrel, a first filter barrel is arranged at the bottom of the discharge pipe, and a first filter screen disc is arranged in the first filter barrel. According to the utility model, a chelating agent reacts with wastewater to form a precipitation complex inside a reaction precipitation barrel, after standing and precipitation, the supernatant reaches a second filter barrel for filtration, the lower-layer precipitation mixture is firstly subjected to primary filtration through a first filter barrel, the filtrate after primary filtration is subjected to secondary filtration through the second filter barrel, and a first vacuum pump and a second vacuum pump are arranged to form low-pressure accelerated filtration inside the first filter barrel and the second filter barrel.

Description

High COD is chelant reaction unit for waste water treatment

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a chelating agent reaction device for treating high-COD wastewater.

Background

With the continuous innovation and development of scientific technology, various colleges and universities and various inspection and detection are used for chemical technology, more and more laboratories for research and test are provided, the generated chemical wastewater also becomes a non-negligible problem, various high COD wastewater with acidity, alkalinity and biotoxicity can be generated in the laboratory in the test process, the wastewater can be discharged only after simple filtration treatment under the prior technical conditions, which has adverse effects on human health and environmental protection, the demand on equipment for thoroughly purifying the wastewater is more and more urgent under the current trend of more and more paying attention to health and environmental protection, and a chelating agent reaction device for wastewater treatment is used for removing metal ions in the wastewater treatment process.

However, the existing chelating agent reaction device for wastewater treatment only removes the complex through simple precipitation, has poor treatment effect, causes metal residue, brings trouble to subsequent treatment, and reduces wastewater treatment efficiency.

Therefore, it is necessary to develop a chelating agent reaction apparatus for treating wastewater with high COD to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chelating agent reaction device for treating high-COD wastewater, which solves the problems that the existing chelating agent reaction device for treating wastewater only removes a complex through simple precipitation, has poor treatment effect, causes metal residues, brings troubles to subsequent treatment and reduces the wastewater treatment efficiency.

In order to achieve the above purpose, the utility model provides the following technical scheme: a chelating agent reaction device for high COD wastewater treatment comprises a reaction precipitation barrel, wherein a discharge pipe is arranged at the bottom of the reaction precipitation barrel, a first connecting pipe is arranged on one side of the reaction precipitation barrel and communicated with the reaction precipitation barrel, a first filter barrel is arranged at the bottom of the discharge pipe, a first filter screen disc is arranged inside the first filter barrel, a first supporting plate is fixedly connected to one side of the first filter barrel, a first vacuum pump is arranged at the top of the first supporting plate, the input end of the first vacuum pump is communicated with the first filter barrel, a second connecting pipe is arranged at the bottom of the first filter barrel and communicated with the first connecting pipe, a second filter barrel is arranged at the bottom of the first connecting pipe, a second filter screen disc is arranged inside the second filter barrel, a second supporting plate is fixedly connected to one side of the second filter barrel, and a second vacuum pump is arranged at the top of the second supporting plate, the input end of the second vacuum pump is communicated with the second filter vat, and the bottom of the second filter vat is provided with a liquid outlet pipe.

Preferably, the inside puddler that is equipped with of reaction precipitation bucket, reaction precipitation bucket top is equipped with the top cap, the top cap top is equipped with the motor, motor output shaft and puddler fixed connection.

Preferably, valves are arranged inside the first connecting pipe, the second connecting pipe, the discharging pipe and the liquid outlet pipe.

Preferably, first filter pulp is arranged in the first filter vat, and the first filter pulp is arranged at the top of the first filter screen disc.

Preferably, a first pleated filter screen is arranged at the top of the first filter cotton, and a lattice filter screen is arranged at the top of the first pleated filter screen.

Preferably, the second filter vat is internally provided with second filter cotton, the second filter cotton is arranged at the top of the second filter screen disc, and the top of the second filter cotton is provided with a second pleated filter screen.

In the technical scheme, the utility model provides the following technical effects and advantages:

by reacting the chelating agent with the wastewater, a precipitation complex is formed in the reaction precipitation barrel, the supernatant reaches the second filter barrel for filtering after standing precipitation, the lower-layer precipitation mixture is firstly subjected to primary filtering through the first filter barrel, the filtrate after primary filtering is subjected to secondary filtering through the second filter barrel, and the first filter barrel and the second filter barrel are internally subjected to low-pressure accelerated filtering through the arrangement of the first vacuum pump and the second vacuum pump, so that the filtering efficiency is improved;

through the inside precipitate of reaction precipitation bucket loop through latticed filter screen, first plait filter screen and first filtration cotton and filter, improve filtration efficiency, filter most precipitate, the inside supernatant of reaction precipitation bucket and second filter vat filter back supernatant fluid pass through second plait filter screen and second filtration cotton in proper order and filter, get rid of remaining precipitate, improve the filter effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of a reaction precipitation tank of the present invention;

FIG. 3 is a cross-sectional view of a first filter vat of the present invention;

FIG. 4 is a cross-sectional view of a second filter basket according to the present invention;

fig. 5 is a perspective view of a first screen tray and a second screen tray of the present invention.

Description of reference numerals:

1. a reaction precipitation barrel; 2. a discharge pipe; 3. a first connecting pipe; 4. a first filter vat; 5. a first screen disc; 6. a first support plate; 7. a first vacuum pump; 8. a second connecting pipe; 9. a second filter vat; 10. a second screen disc; 11. a second support plate; 12. a second vacuum pump; 13. a stirring rod; 14. a top cover; 15. a motor; 16. a valve; 17. first filter cotton; 18. a first pleated filter web; 19. a grid-shaped filter screen; 20. second filter cotton; 21. a second pleated filter web; 22. a liquid outlet pipe.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The utility model provides a chelating agent reaction device for treating high COD wastewater, which comprises a reaction precipitation barrel 1, wherein a discharge pipe 2 is arranged at the bottom of the reaction precipitation barrel 1, a first connecting pipe 3 is arranged at one side of the reaction precipitation barrel 1, the first connecting pipe 3 is communicated with the reaction precipitation barrel 1, a first filter barrel 4 is arranged at the bottom of the discharge pipe 2, a first filter screen disc 5 is arranged inside the first filter barrel 4, a first supporting plate 6 is fixedly connected to one side of the first filter barrel 4, a first vacuum pump 7 is arranged at the top of the first supporting plate 6, the input end of the first vacuum pump 7 is communicated with the first filter barrel 4, a second connecting pipe 8 is arranged at the bottom of the first filter barrel 4, the second connecting pipe 8 is communicated with the first connecting pipe 3, a second filter barrel 9 is arranged at the bottom of the first connecting pipe 3, and a second filter screen disc 10 is arranged inside the second filter barrel 9, a second supporting plate 11 is fixedly connected to one side of the second filtering barrel 9, a second vacuum pump 12 is arranged at the top of the second supporting plate 11, the input end of the second vacuum pump 12 is communicated with the second filtering barrel 9, a liquid outlet pipe 22 is arranged at the bottom of the second filtering barrel 9, after the reaction is finished, the mixture in the reaction settling barrel 1 is kept standing and settling, after the mixture is kept standing, a valve 16 of the first connecting pipe 3 is opened, the supernatant in the reaction settling barrel 1 flows into the second filtering barrel 9, the second vacuum pump 12 is started, low pressure is formed in the second filtering barrel 9, the supernatant is filtered, a valve 16 of the liquid outlet pipe 2 is opened, the stirring rod 13 is rotated, the lower-layer settling mixture in the reaction settling barrel 1 flows into the first filtering barrel 4, the first vacuum pump 7 is started, low pressure is formed in the first filtering barrel 4, and the lower-layer settling mixture is filtered, the precipitate is remained at the top of the first filter screen disc 5, the valve 16 of the second connecting pipe 8 is opened, the filtrate in the first filter vat 4 flows into the second filter vat 9, the second filter vat 9 filters the filtrate in the first filter vat 4 again, the filtering effect is improved, the device improves the filtering effect by a method combining standing precipitation and multiple filtering, reduces metal residue, brings convenience for subsequent treatment and improves the wastewater treatment efficiency.

Further, in above-mentioned technical scheme, reaction sedimentation bucket 1 is inside to be equipped with puddler 13, reaction sedimentation bucket 1 top is equipped with top cap 14, top cap 14 top is equipped with motor 15, motor 15 output shaft and puddler 13 fixed connection, when using, add waste water, precipitant and chelating agent inside reaction sedimentation bucket 1, starter motor 15, motor 15 output shaft rotate and drive puddler 13 and rotate, make metal ion and chelating agent fully react in the waste water, show the reinforcing to COD's in the waste water degradability.

Further, in the above technical solution, valves 16 are disposed inside the first connecting pipe 3, the second connecting pipe 8, the discharging pipe 2, and the liquid outlet pipe 22, and the valves 16 are convenient for controlling the liquid to flow out.

As shown in fig. 1-4: first filter vat 4 is inside to be equipped with first filter pulp 17, first filter pulp 17 sets up at 5 tops of first filter screen dish, and when using, the inside precipitate of reaction precipitation bucket 1 filters through first filter pulp 17, improves filtration efficiency, filters most precipitates.

Further, in the above technical solution, the first pleated filter screen 18 is disposed on the top of the first filter cotton 17, the lattice filter screen 19 is disposed on the top of the first pleated filter screen 18, and when in use, the precipitate inside the reaction precipitation tank 1 is filtered by the lattice filter screen 19 and the first pleated filter screen 18 in sequence, so as to improve the filtering efficiency and filter most of the precipitate.

Further, in the above technical scheme, second filter pulp 20 is arranged inside the second filter vat 9, the second filter pulp 20 is arranged on the top of the second filter screen disc 10, a second pleated filter screen 21 is arranged on the top of the second filter pulp 20, the supernatant inside the reaction sedimentation tank 1 and the supernatant after being filtered by the second filter vat 9 are sequentially filtered by the second pleated filter screen 21 and the second filter pulp 20, the residual precipitate is removed, and the filtering effect is improved.

This practical theory of operation:

referring to the attached drawings 1-5 of the specification, when in use, wastewater, a precipitator and a chelating agent are added into a reaction precipitation barrel 1, a motor 15 is started, an output shaft of the motor 15 rotates to drive a stirring rod 13 to rotate, so that metal ions in the wastewater and the chelating agent fully react, the degradation capability of COD in the wastewater is obviously enhanced, after the reaction is finished, a mixture in the reaction precipitation barrel 1 is kept standing and precipitating, after the mixture is kept standing, a valve 16 of a first connecting pipe 3 is opened, supernatant in the reaction precipitation barrel 1 flows into a second filtering barrel 9, a second vacuum pump 12 is started to form low pressure in the second filtering barrel 9, the supernatant is filtered, a valve 16 of a discharging pipe 2 is opened, the stirring rod 13 rotates, the lower-layer precipitation mixture in the reaction precipitation barrel 1 flows into a first filtering barrel 4, the first vacuum pump 7 is started, so that low pressure is formed in the first filtering barrel 4, filtering the lower-layer precipitate mixture, keeping the precipitate at the top of the first filter screen disc 5, opening a valve 16 of the second connecting pipe 8 to enable the filtrate in the first filter vat 4 to flow into the second filter vat 9, and filtering the filtrate in the first filter vat 4 again by the second filter vat 9 to improve the filtering effect;

referring to the attached drawings 1-4 of the specification, when the reaction sedimentation barrel 1 is used, sediment in the reaction sedimentation barrel 1 is filtered sequentially through the lattice filter screen 19, the first pleated filter screen 18 and the first filter cotton 17, so that the filtering efficiency is improved, most of the sediment is filtered, supernatant in the reaction sedimentation barrel 1 and clear liquid after being filtered by the second filter barrel 9 are filtered sequentially through the second pleated filter screen 21 and the second filter cotton 20, residual sediment is removed, and the filtering effect is improved.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides a high COD is chelant reaction unit for waste water treatment, includes reaction precipitation bucket (1), its characterized in that: the reaction sedimentation barrel is characterized in that a discharge pipe (2) is arranged at the bottom of the reaction sedimentation barrel (1), a first connecting pipe (3) is arranged on one side of the reaction sedimentation barrel (1), the first connecting pipe (3) is communicated with the reaction sedimentation barrel (1), a first filter barrel (4) is arranged at the bottom of the discharge pipe (2), a first filter screen disc (5) is arranged inside the first filter barrel (4), a first support plate (6) is fixedly connected to one side of the first filter barrel (4), a first vacuum pump (7) is arranged at the top of the first support plate (6), the input end of the first vacuum pump (7) is communicated with the first filter barrel (4), a second connecting pipe (8) is arranged at the bottom of the first filter barrel (4), the second connecting pipe (8) is communicated with the first connecting pipe (3), a second filter barrel (9) is arranged at the bottom of the first connecting pipe (3), a second filter screen disc (10) is arranged inside the second filter barrel (9), second filter vat (9) one side fixedly connected with second backup pad (11), second backup pad (11) top is equipped with second vacuum pump (12), second vacuum pump (12) input is linked together with second filter vat (9), second filter vat (9) bottom is equipped with drain pipe (22).

2. The chelant reaction unit for high COD wastewater treatment according to claim 1, characterized in that: the reaction sedimentation barrel is characterized in that a stirring rod (13) is arranged inside the reaction sedimentation barrel (1), a top cover (14) is arranged at the top of the reaction sedimentation barrel (1), a motor (15) is arranged at the top of the top cover (14), and an output shaft of the motor (15) is fixedly connected with the stirring rod (13).

3. The chelant reaction unit for high COD wastewater treatment according to claim 1, characterized in that: valves (16) are arranged inside the first connecting pipe (3), the second connecting pipe (8), the discharging pipe (2) and the liquid outlet pipe (22).

4. The chelant reaction unit for high COD wastewater treatment according to claim 1, characterized in that: first filter vat (4) inside is equipped with first filter pulp (17), first filter pulp (17) set up at first filter screen dish (5) top.

5. The chelant reaction unit for high COD wastewater treatment according to claim 4, wherein: the top of the first filter cotton (17) is provided with a first pleated filter screen (18), and the top of the first pleated filter screen (18) is provided with a grid filter screen (19).

6. The chelant reaction unit for high COD wastewater treatment according to claim 1, characterized in that: the inside second filter pulp (20) that is equipped with of second lauter tun (9), second filter pulp (20) set up at second filter screen dish (10) top, second filter pulp (20) top is equipped with second plait form filter screen (21).