CN214693431U

CN214693431U - Electrochemical treatment device for reducing COD (chemical oxygen demand) of wastewater

Info

Publication number: CN214693431U
Application number: CN202120713700.0U
Authority: CN
Inventors: 袁霄; 赵黄浦; 陈钊; 周维啸
Original assignee: Shanghai Lion Environmental Protection Technology Co ltd
Current assignee: Shanghai Lion Environmental Protection Technology Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-12
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a reduce waste water COD's electrochemical treatment device, which comprises an outer shell, one side at shell top is provided with servo motor, the servo motor output is provided with the transmission shaft, the transmission shaft outer wall is provided with the stirring leaf, the outer wall of shell one side is provided with the outlet pipe, the outer wall of outlet pipe one end is provided with the solenoid valve, the inner wall at shell top is provided with COD content detector, control panel is installed to the front side of shell outer wall, one side welding of shell inner wall has the fixed plate, the outer wall of fixed plate bottom is provided with the electrode bar. The utility model discloses a transmission pipe is connected inlet tube and electroplating effluent's water pump, then is connected intake pipe and air pump, and water pump and air pump start simultaneously, and electroplating effluent reachs the transmission pipe simultaneously with oxygen, then makes electroplating effluent mix with oxygen, and the electroplating effluent who mixes oxygen improves the content of the oxygen in the electroplating effluent from the shower nozzle blowout.

Description

Electrochemical treatment device for reducing COD (chemical oxygen demand) of wastewater

Technical Field

The utility model relates to a waste water treatment field, concretely relates to reduce electrochemical treatment device of waste water COD.

Background

With the rapid development of the current mechanical field, the surfaces of a plurality of parts need to be plated, wherein the plating is to adhere a layer of other metal or alloy on the surface of a certain metal, so that the wear resistance, the conductivity and the corrosion resistance of the parts are improved, the plating solution needs to be replaced after being used for a period of time, and the COD in the plating wastewater needs to be reduced in the process of treating the plating wastewater.

However, in practical use, the electroplating wastewater needs to be oxidized by an electrochemical reaction to reduce organic substances and metals in the electroplating wastewater, but when the oxygen content in the electroplating wastewater is low, the treatment speed of the electroplating wastewater is slow when the electroplating wastewater is treated by the electrochemical reaction.

Therefore, it is necessary to develop an electrochemical treatment apparatus for reducing COD in wastewater to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reduce electrochemical treatment device of waste water COD, through the transmission pipe, be connected the inlet tube with electroplating effluent's water pump, then be connected intake pipe and air pump, make water pump and air pump start simultaneously, make electroplating effluent and oxygen arrive the transmission pipe simultaneously, then make electroplating effluent and oxygen mix, the electroplating effluent who mixes oxygen is from the shower nozzle blowout to can improve the content of the oxygen in the electroplating effluent, with the above-mentioned weak point in the solution technique.

In order to achieve the above object, the present invention provides the following technical solutions: an electrochemical treatment device for reducing COD in wastewater comprises a shell, wherein a servo motor is arranged on one side of the top of the shell, a transmission shaft is arranged at the output end of the servo motor, a stirring blade is arranged on the outer wall of the transmission shaft, a water outlet pipe is arranged on the outer wall of one side of the shell, a solenoid valve is arranged on the outer wall of one end of the water outlet pipe, a COD content detector is arranged on the inner wall of the top of the shell, a control panel is installed on the front side of the outer wall of the shell, a fixed plate is welded on one side of the inner wall of the shell, an electrode rod is arranged on the outer wall of the bottom of the fixed plate, a lifting shaft is arranged inside the rear side of the fixed plate, a floating block is arranged at the bottom end of the lifting shaft, a rotating rod is movably clamped on the outer wall of the top end of the rotating rod, a push-pull rod is movably clamped at one end of the rotating rod, which is far away from the lifting shaft, a sealing plug is movably clamped at one end of the push-pull rod, the inner wall of the upper end of the shell is provided with a fixed rod, one end of the fixed rod is welded with a fixed block, a transmission pipe is arranged inside the fixed block, a spray head is arranged on the outer wall of the bottom of the transmission pipe, an air inlet pipe is arranged on the outer wall of the top of the transmission pipe, a water inlet pipe is arranged on the inner wall of the top of the shell, and a fixed pipe is arranged in the middle of the outer wall of the water inlet pipe.

Preferably, the number of the stirring blades is two, the two stirring blades are vertically distributed on the vertical center line of the transmission shaft, and the transmission shaft is made of plastic materials.

Preferably, the number of the water outlet pipes is three, and the three water outlet pipes are horizontally distributed on the horizontal center line of the outer wall on one side of the shell.

Preferably, the two sides of the outer wall of the lifting shaft are provided with grooves, and the inner walls of the grooves of the lifting shaft are attached to the outer walls of the lugs in the through holes of the fixing plate.

Preferably, the sealing plug is slidably connected with the inner wall of the fixed pipe, one side of the sealing plug is hinged with one end of the push-pull rod, and the diameter of the sealing plug is smaller than that of the fixed pipe.

Preferably, the number of the fixed blocks is four, the four fixed blocks are annularly distributed on the outer wall of the transmission pipe, and the outer wall of the transmission pipe is attached to the inner wall of each fixed block.

In the technical scheme, the utility model provides a technological effect and advantage:

1. through the stirring blade, when the electroplating wastewater enters the treatment device, the electrode rod is started, a closed loop is formed between the two electrode plates through the electroplating wastewater, the electroplating water cost is subjected to oxidation-reduction reaction, then the servo motor is started, the servo motor drives the stirring blade to rotate through the transmission shaft, and the stirring blade is enabled to stir the electroplating wastewater, so that the contact area between the electroplating wastewater and the electrode plates is increased, and the time for reducing COD is shortened;

2. through the transmission pipe, be connected the inlet tube with electroplating effluent's water pump, then be connected intake pipe and air pump, make water pump and air pump start simultaneously, make electroplating effluent and oxygen reach the transmission pipe simultaneously, then make electroplating effluent mix with oxygen, the electroplating effluent of mixed oxygen is from the shower nozzle blowout to can improve the content of the oxygen in the electroplating effluent.

Drawings

In order to more clearly illustrate the embodiments of the present application or the 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 these drawings.

FIG. 1 is a perspective view of the present invention;

fig. 2 is a perspective view of the transmission pipe of the present invention;

FIG. 3 is a perspective view of the fixing tube of the present invention;

FIG. 4 is an overall front sectional view of the present invention;

fig. 5 is a partial side sectional view of the fixing tube of the present invention.

Description of reference numerals:

1. a housing; 2. a servo motor; 3. a drive shaft; 4. stirring blades; 5. a water outlet pipe; 6. an electromagnetic valve; 7. a COD content detector; 8. a control panel; 9. a fixing plate; 10. an electrode rod; 11. a lifting shaft; 12. a floating block; 13. rotating the rod; 14. a push-pull rod; 15. a sealing plug; 16. fixing the rod; 17. a fixed block; 18. a conveying pipe; 19. a spray head; 20. an air inlet pipe; 21. a water inlet pipe; 22. and fixing the tube.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides an electrochemical treatment device for reducing COD in waste water, as shown in figures 1-5, comprising a shell 1, one side of the top of the shell 1 is provided with a servo motor 2, the output end of the servo motor 2 is provided with a transmission shaft 3, the outer wall of the transmission shaft 3 is provided with a stirring blade 4, the outer wall of one side of the shell 1 is provided with a water outlet pipe 5, the outer wall of one end of the water outlet pipe 5 is provided with a solenoid valve 6, the inner wall of the top of the shell 1 is provided with a COD content detector 7, the front side of the outer wall of the shell 1 is provided with a control panel 8, one side of the inner wall of the shell 1 is welded with a fixed plate 9, the outer wall of the bottom of the fixed plate 9 is provided with an electrode bar 10, the inside of the rear side of the fixed plate 9 is provided with a lifting shaft 11, the bottom end of the lifting shaft 11 is provided with a floating block 12, the outer wall of the top end of the lifting shaft 11 is movably clamped with a rotating rod 13, the one end activity joint that lift axle 11 was kept away from to dwang 13 has push-and-pull rod 14, the one end activity joint that dwang 13 was kept away from to push-and-pull rod 14 has sealing plug 15, the inner wall of 1 upper end of shell is provided with

dead lever

16, 16 one end welding of dead lever has fixed block 17, fixed block 17 internally mounted has transmission pipe 18, the outer wall of transmission pipe 18 bottom is provided with shower nozzle 19, the outer wall at transmission pipe 18 top is provided with intake pipe 20, the inner wall at 1 top of shell is provided with inlet tube 21, the centre of inlet tube 21 outer wall is provided with fixed pipe 22.

Further, in above-mentioned technical scheme, 4 quantity of stirring leaf sets up to two, two 4 vertical distribution in the perpendicular central line of transmission shaft 3 of stirring leaf, transmission shaft 3 is made for the plastics material, can stir the electroplating effluent in the processing apparatus through stirring leaf 4, increases the area of contact between electroplating effluent and the electrode bar 10, improves the efficiency that electroplating effluent COD handled.

Further, in the above technical scheme, the number of the water outlet pipes 5 is three, the three water outlet pipes 5 are horizontally distributed on the horizontal center line of the outer wall of one side of the housing 1, the electroplating wastewater after the treatment is completed can be rapidly discharged through the plurality of groups of water outlet pipes 5, and then the closing of the water outlet pipes 5 can be controlled by the electromagnetic valve 6.

Furthermore, in the above technical solution, two sides of the outer wall of the lifting shaft 11 are provided with grooves, the inner walls of the grooves of the lifting shaft 11 are attached to the outer walls of the protrusions in the through holes of the fixing plate 9, the height of the water level in the treatment device can control the lifting of the lifting shaft 11, and the lifting of the lifting shaft 11 can control the closing of the water inlet pipe 21.

Further, in the above technical scheme, the sealing plug 15 is slidably connected to the inner wall of the fixed pipe 22, one side of the sealing plug 15 is hinged to one end of the push-pull rod, the diameter of the sealing plug 15 is smaller than that of the fixed pipe 22, a sealing ring is installed on the outer wall of the sealing plug 15, the sealing plug 15 and the fixed pipe 22 can be attached to each other through the sealing ring, and leakage of untreated electroplating wastewater is prevented.

Further, in the above technical solution, the number of the fixing blocks 17 is four, the four fixing blocks 17 are annularly distributed on the outer wall of the transmission pipe 18, the outer wall of the transmission pipe 18 is attached to the inner wall of the fixing blocks 17, the transmission pipe 18 can be fixed by the fixing blocks 17, and the transmission pipe 18 is prevented from falling off.

This practical theory of operation:

referring to the attached drawings 1-5 of the specification, a water inlet pipe 21 and an air inlet pipe 20 are respectively connected with an air pump and a water pump, the air pump and the water pump are started, electroplating wastewater is pumped into a transmission pipe 18 through the water inlet pipe 21 by the water pump, then oxygen is pumped in through the air inlet pipe 20 by the air pump, the oxygen and the electroplating wastewater are mixed in the transmission pipe 18 through high-pressure oxygen and then are sprayed out from a spray head 19, the sprayed water falls into a cavity in the shell 1, the water level in the cavity is gradually raised, the water level drives a floating block 12 to move upwards, then the floating block 12 drives a lifting shaft 11 to move upwards, a groove in the outer wall of the lifting shaft 11 is attached to a projection of a through hole of a fixing plate 9 to prevent the lifting shaft 11 from deviating in the lifting process, then the lifting shaft 11 drives the rotating rod 13 to rotate along a shaft in the middle of the rotating rod 13 to drive the push rod 14 to move forwards, the push-pull rod 14 pushes a sealing plug 15 to move forwards, the sealing plug 15 enters the water inlet pipe 21, when the water level in the cavity reaches a certain height, the water inlet pipe 21 is blocked, and electroplating wastewater cannot enter the cavity;

referring to the attached drawings 1-5 of the specification, an electrode bar 10 and a servo motor 2 are started through a control panel 8, the two electrode bars 10 form a closed loop through electroplating wastewater to treat the electroplating wastewater, then the servo motor 2 drives a stirring blade 4 to rotate through a transmission shaft 3, so that the stirring blade 4 stirs the electroplating wastewater in a cavity, the contact area between the electroplating wastewater and the electrode bars 10 is increased, the treatment speed of the electroplating wastewater is improved, the electroplating wastewater in the treatment process is detected through a COD (chemical oxygen demand) content detector 7, when the electroplating wastewater is qualified, a solenoid valve 6 is started, a water outlet pipe 5 is opened through the solenoid valve 6, then the electroplating wastewater after the treatment is discharged through the water outlet pipe 5, after the electroplating wastewater is discharged by half, the solenoid valve 6 is closed, the water outlet pipe 5 is closed, and the water level is lowered in the process of discharging the electroplating wastewater, the floating block 12 descends according to the water level, then the floating block 12 drives the rotating rod 13, the push-pull rod 14, the lifting shaft 11 and the sealing plug 15 to move in the opposite direction, so that the sealing plug 15 enters the fixed pipe 22, the water inlet pipe 21 is opened, and electroplating wastewater is re-introduced and mixed with oxygen to enter the cavity for treatment.

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 present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. An electrochemical treatment device for reducing COD in wastewater, comprising a shell (1), characterized in that: one side at the top of the shell (1) is provided with a servo motor (2), the output end of the servo motor (2) is provided with a transmission shaft (3), the outer wall of the transmission shaft (3) is provided with a stirring blade (4), the outer wall of one side of the shell (1) is provided with a water outlet pipe (5), the outer wall of one end of the water outlet pipe (5) is provided with a solenoid valve (6), the inner wall of the top of the shell (1) is provided with a COD content detector (7), the front side of the outer wall of the shell (1) is provided with a control panel (8), one side of the inner wall of the shell (1) is welded with a fixed plate (9), the outer wall of the bottom of the fixed plate (9) is provided with an electrode rod (10), the inside of the rear side of the fixed plate (9) is provided with a lifting shaft (11), the bottom of the lifting shaft (11) is provided with a floating block (12), the outer wall at the top of the lifting shaft (11) is movably clamped with a rotating rod (13), the one end activity joint of keeping away from lift axle (11) dwang (13) has push-and-pull rod (14), the one end activity joint that dwang (13) were kept away from in push-and-pull rod (14) has sealing plug (15), the inner wall of shell (1) upper end is provided with dead lever (16), dead lever (16) one end welding has fixed block (17), fixed block (17) internally mounted has transmission pipe (18), the outer wall of transmission pipe (18) bottom is provided with shower nozzle (19), the outer wall at transmission pipe (18) top is provided with intake pipe (20), the inner wall at shell (1) top is provided with inlet tube (21), the centre of inlet tube (21) outer wall is provided with fixed pipe (22).

2. The electrochemical treatment device for reducing COD of wastewater according to claim 1, characterized in that: stirring leaf (4) quantity sets up to two, two stirring leaf (4) vertical distribution is in the perpendicular central line of transmission shaft (3), transmission shaft (3) are made for the plastics material.

3. The electrochemical treatment device for reducing COD of wastewater according to claim 1, characterized in that: the number of the water outlet pipes (5) is three, and the three water outlet pipes (5) are horizontally distributed on the horizontal center line of the outer wall of one side of the shell (1).

4. The electrochemical treatment device for reducing COD of wastewater according to claim 1, characterized in that: grooves are formed in two sides of the outer wall of the lifting shaft (11), and the inner walls of the grooves of the lifting shaft (11) are attached to the outer walls of the lugs in the through holes of the fixing plates (9).

5. The electrochemical treatment device for reducing COD of wastewater according to claim 1, characterized in that: the sealing plug (15) is connected with the inner wall of the fixed pipe (22) in a sliding mode, one side of the sealing plug (15) is connected with one end of the push-pull rod in a hinged mode, and the diameter of the sealing plug (15) is smaller than that of the fixed pipe (22).

6. The electrochemical treatment device for reducing COD of wastewater according to claim 1, characterized in that: the number of the fixed blocks (17) is four, the four fixed blocks (17) are annularly arrayed on the outer wall of the transmission pipe (18), and the outer wall of the transmission pipe (18) is attached to the inner wall of the fixed blocks (17).