Heavy metal wastewater treatment equipment

Abstract

The utility model discloses heavy metal wastewater treatment equipment which comprises a filter tank, first supports are mounted on two sides of the filter tank, an adsorption tank is mounted on the upper portions of the first supports, the adsorption tank is connected with the filter tank through a connecting pipe, and a first electric control valve is mounted on the connecting pipe; an adsorption box end cover is installed at the top of the adsorption box, a waste water inlet and an adsorbent water inlet are formed in the adsorption box end cover, a second electric control valve is installed on the waste water inlet, and a first motor is installed above the adsorption box end cover through a second support; an output shaft of the first motor is rotatably mounted on the adsorption box end cover in a penetrating manner, and the output shaft of the first motor is connected with a stirring rod. According to the scheme, waste water to be treated is stored in the adsorption tank by the first electric control valve, and the stirring rod works at the moment, so that an adsorbent and the waste water are fully contacted for a long time, and the adsorption effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a heavy metal wastewater treatment device. Background Art

[0002] Heavy metal wastewater refers to wastewater produced in production and life that contains a large amount of heavy metal elements, such as cadmium, nickel, mercury, zinc, copper, iron, zinc, magnesium, etc.

[0003] After searching, the Chinese patent application No. 201721588924.3 discloses a sewage heavy metal adsorption device, including an external tank body and an inner core column; the outer tank body is closed on all sides and open on the upper end; the bottom of the outer tank body is provided with a liquid outlet pipe; the inner tank body is provided with a cavity; the inner core column is installed in the cavity inside the outer tank body; the inner core column is a columnar structure; the inner core column is made of activated carbon material; the outer side of the inner core column is provided with spiral grooves distributed from top to bottom; the outer side surface of the inner core column is sealed and abutted with the inner wall of the external tank body; the external tank body is provided with a liquid inlet pipe; the liquid inlet pipe is connected to the upper end of the spiral groove on the inner core column. The sewage heavy metal adsorption device in the above-mentioned document has the following shortcomings: the adsorption process will produce metal flocs precipitation, blocking small channels, and inconvenient for subsequent sewage treatment. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a heavy metal wastewater treatment device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heavy metal wastewater treatment device comprises a filter box, first brackets are installed on both sides of the filter box, an adsorption box is installed on the upper part of the first bracket, the adsorption box and the filter box are connected by a connecting pipe, and a first electrically-controlled valve is installed on the connecting pipe; an adsorption box end cover is installed on the top of the adsorption box, a wastewater inlet and an adsorbent inlet are provided on the adsorption box end cover, a second electrically-controlled valve is installed on the wastewater inlet, a first motor is installed above the adsorption box end cover through a second bracket, the output shaft of the first motor is rotatably installed through the adsorption box end cover, and a stirring rod is connected to the output shaft of the first motor.

[0007] As a further solution of the utility model: the blades of the stirring rod are flat.

[0008] As a further solution of the utility model: two regulator boxes are installed above the end cover of the adsorption box through a third bracket, and the two regulator boxes respectively place an acid regulator and an alkaline regulator. The regulator box and the end cover of the adsorption box are connected through a water pipe, and a third electric control valve is installed on the water pipe. A pH detector is installed at the bottom of the adsorption box.

[0009] As a further solution of the utility model: a first filter plate and a second filter plate are installed in the filter box, a drain outlet is provided at the bottom of the filter box, and a first box door and a second box door are respectively provided on the outside of the filter box corresponding to the first filter plate and the second filter plate.

[0010] As a further solution of the utility model: a plurality of guide grooves are provided on the inner wall of the filter box, and the first filter plate and the second filter plate can be slidably installed in the guide grooves.

[0011] As a further solution of the utility model: it also includes a heavy metal wastewater adsorbent conveying mechanism, the heavy metal wastewater adsorbent conveying mechanism includes a liquid storage tank, a liquid storage tank end cover is installed on the top of the liquid storage tank, a second motor is installed on the bottom of the liquid storage tank, a partition is provided in the middle of the liquid storage tank and the upper end of the second motor, the output shaft of the second motor passes through the partition, a turntable is rotatably installed above the partition, the turntable is connected to the output shaft of the second motor, a number of baffles are evenly arranged on the upper surface of the turntable, a liquid outlet is opened on the side wall of the liquid storage tank, the liquid outlet is connected to the adsorbent water inlet through a pipe, and a pressure pump is installed on the pipe.

[0012] As a further solution of the utility model: a rotating gasket is installed between the turntable and the inner wall of the liquid storage tank.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the scheme, the first electric control valve stores the wastewater to be treated in the adsorption box. At this time, the stirring rod works to make the adsorbent and the wastewater fully and long-term contact, thereby improving the adsorption effect.

[0015] 2. Through the scheme, the flat blades effectively improve the stirring force of the stirring rod and effectively mix the adsorbent and the wastewater.

[0016] 3. Through the scheme, the pH detector can detect the pH of the wastewater, and the corresponding regulator is added through the third electric control valve to adjust the pH to meet the normal use of the adsorbent.

[0017] 4. Through the scheme, the first filter plate filters the flocs produced after the adsorption is completed, and the second filter plate filters the remaining adsorbent in the water body to avoid waste. The operator can take out the corresponding filter plate through the first door and the second door.

[0018] 5. By setting the guide groove, the operator can take out and put back the filter plate accurately and conveniently.

[0019] 6. Through the above scheme, the pressure pump pumps the adsorbent in the liquid storage tank into the adsorption box to complete the adsorption, and the motor drives the turntable to stir the adsorbent to prevent the particles in the adsorbent from settling due to long-term standing, resulting in a decrease in the adsorption effect.

[0020] 7. The solution effectively prevents the adsorbent in the liquid storage tank from flowing into the second motor below through the gap, causing damage to the second motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a heavy metal wastewater treatment device proposed by the utility model;

[0022] Figure 2 This is a cross-sectional view of a heavy metal wastewater treatment device proposed by the utility model;

[0023] Figure 3 This is a structural schematic diagram of a heavy metal wastewater adsorbent delivery mechanism proposed by the utility model;

[0024] Figure 4 The utility model proposed Figure 2 Schematic diagram of the structure at point A.

[0025] In the figure: 1-filter box, 11-second box door, 12-first box door, 13-first bracket, 14-first electric control valve, 15-connecting pipe, 16-drain outlet, 17-second filter plate, 18-first filter plate, 19-guide groove, 2-adsorption box, 21-adsorption box end cover, 22-wastewater inlet, 23-adsorbent inlet, 24-stirring rod, 25-first motor, 26-second bracket, 27-pH detector, 28-second electric control valve, 3-regulator box, 31-third electric control valve, 32-third bracket, 33-water pipe, 4-liquid storage tank, 41-second motor, 42-turntable, 43-baffle, 44-liquid outlet, 45-pressure pump, 46-liquid storage tank end cover. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] Example 1

[0029] A heavy metal wastewater treatment equipment, such as Figure 1-3 As shown, it includes a filter box 1. In order to fully adsorb heavy metal wastewater; first brackets 13 are installed on both sides of the filter box 1, an adsorption box 2 is installed on the upper part of the first bracket 13, the adsorption box 2 and the filter box 1 are connected by a connecting pipe 15, and the connecting pipe 15 is installed with a first electric control valve 14; an adsorption box end cover 21 is installed on the top of the adsorption box 2, a wastewater inlet 22 and an adsorbent inlet 23 are opened on the adsorption box end cover 21, a second electric control valve 28 is installed on the wastewater inlet 22, a first motor 25 is installed above the adsorption box end cover 21 through a second bracket 26, the output shaft of the first motor 25 can be rotatably installed through the adsorption box end cover 21, and the output shaft of the first motor 25 is connected to a stirring rod 24.

[0030] Through the scheme, the first electric control valve stores the wastewater to be treated in the adsorption box. At this time, the stirring rod works to make the adsorbent and the wastewater fully and long-term contact, thereby improving the adsorption effect.

[0031] The device is further configured such that the blades of the stirring rod 24 are flat.

[0032] Through the scheme, the flat blades effectively improve the stirring force of the stirring rod, and effectively mix the adsorbent and the wastewater.

[0033] In order to prevent the pH of wastewater from affecting the effect of the adsorbent; Figure 2 and 4 As shown, two regulator boxes 3 are installed above the adsorption box end cover 21 through a third bracket 32, and the two regulator boxes 3 are respectively placed with an acid regulator and an alkaline regulator. The regulator box 3 and the adsorption box end cover 21 are connected through a water pipe 33, and a third electric control valve 31 is installed on the water pipe 33. A pH detector 27 is installed at the bottom of the adsorption box 2.

[0034] Through the scheme, the pH detector can detect the pH of the wastewater, and the corresponding regulator is added through the third electric control valve to adjust the pH to meet the normal use of the adsorbent.

[0035] The device is further configured such that a first filter plate 18 and a second filter plate 17 are installed in the filter box 1, a drain port 16 is provided at the bottom of the filter box 1, and a first box door 12 and a second box door 11 are provided at locations on the outside of the filter box 1 corresponding to the first filter plate 18 and the second filter plate 17, respectively.

[0036] Through the scheme, the first filter plate filters the flocs produced after the adsorption is completed, and the second filter plate filters the remaining adsorbent in the water body to avoid waste. The operator can take out the corresponding filter plate through the first door and the second door.

[0037] The device is further configured such that a plurality of guide grooves 19 are provided on the inner wall of the filter box 1 , and the first filter plate 18 and the second filter plate 17 can be slidably installed in the guide grooves 19 .

[0038] By setting the guide groove, the operator can take out and put back the filter plate accurately and conveniently.

[0039] The device is further configured as follows: Figure 3 As shown, it also includes a heavy metal wastewater adsorbent conveying mechanism, which includes a liquid storage tank 4, a liquid storage tank end cover 46 is installed on the top of the liquid storage tank 4, a second motor 41 is installed on the bottom of the liquid storage tank, a partition is provided in the middle of the liquid storage tank 4 and the upper end of the second motor 41, the output shaft of the second motor 41 passes through the partition, a turntable 42 is rotatably installed above the partition, the turntable is connected to the output shaft of the second motor 41, and a plurality of baffles 43 are evenly arranged on the upper surface of the turntable 42, a liquid outlet 44 is opened on the side wall of the liquid storage tank 4, and the liquid outlet 44 is connected to the adsorbent water inlet 23 through a pipeline, and a pressure pump 45 is installed on the pipeline.

[0040] Through the scheme, the pressure pump pumps the adsorbent in the liquid storage tank into the adsorption box to complete the adsorption, and the motor drives the turntable to stir the adsorbent to prevent the particles in the adsorbent from settling due to long-term standing, resulting in a decrease in the adsorption effect.

[0041] The device is further configured such that a rotating gasket is installed between the rotating disk 42 and the inner wall of the liquid storage tank 4 .

[0042] The solution effectively prevents the adsorbent in the liquid storage tank from flowing into the second motor below through the gap, thereby damaging the second motor.

[0043] Working principle: close the first electric control valve 14, pass the heavy metal wastewater to be treated outside the wastewater inlet 22, and pass the wastewater into the adsorption box 2 through the second electric control valve 28. At this time, according to the test results of the pH detector 27 and the pH requirements of the adsorbent, open the corresponding third electric control valve 31, and adjust the pH of the wastewater through the corresponding regulator; turn on the second motor 41 to stir the adsorbent in the liquid storage tank 4 to prevent precipitation, and turn on the pressure pump 45 to pump the adsorbent into the adsorption box 2; turn on the first motor 25 to drive the stirring rod 24 to stir and mix Wastewater and adsorbent; after the adsorbent fully adsorbs the heavy metal ions in the wastewater, open the first electric control valve 14, and the liquid enters the filter box 1 through the connecting pipe 15. At this time, the first filter plate 18 filters the metal flocs produced after the adsorption is completed, and the second filter plate 17 filters the remaining adsorbent in the water to avoid waste. After the work is completed, the operator can take out the corresponding first filter plate 18 and the second filter plate 17 through the first box door 12 and the second box door 11 for cleaning and replacement; the filtered water is finally discharged from the device through the drain port 16 at the bottom.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heavy metal wastewater treatment device, comprising a filter box (1), characterized in that: First brackets (13) are installed on both sides of the filter box (1), an adsorption box (2) is installed on the top of the first bracket (13), the adsorption box (2) and the filter box (1) are connected via a connecting pipe (15), and a first electric control valve (14) is installed on the connecting pipe (15); an adsorption box end cover (21) is installed on the top of the adsorption box (2), a wastewater inlet (22) and an adsorbent inlet (23) are provided on the adsorption box end cover (21), a second electric control valve (28) is installed on the wastewater inlet (22), a first motor (25) is installed above the adsorption box end cover (21) via a second bracket (26), an output shaft of the first motor (25) is rotatably installed through the adsorption box end cover (21), and a stirring rod (24) is connected to the output shaft of the first motor (25).

2. A heavy metal wastewater treatment equipment according to claim 1, characterized in that: The blades of the stirring rod (24) are flat.

3. A heavy metal wastewater treatment equipment according to claim 2, characterized in that: Two regulator boxes (3) are installed above the adsorption box end cover (21) via a third bracket (32), and the two regulator boxes (3) respectively contain an acidic regulator and an alkaline regulator. The regulator box (3) and the adsorption box end cover (21) are connected via a water pipe (33), and a third electric control valve (31) is installed on the water pipe (33). A pH detector (27) is installed at the bottom of the adsorption box (2).

4. A heavy metal wastewater treatment equipment according to claim 3, characterized in that: A first filter plate (18) and a second filter plate (17) are installed in the filter box (1), a drain outlet (16) is provided at the bottom of the filter box (1), and a first box door (12) and a second box door (11) are provided on the outside of the filter box (1) at locations corresponding to the first filter plate (18) and the second filter plate (17).

5. A heavy metal wastewater treatment equipment according to claim 4, characterized in that: The inner wall of the filter box (1) is provided with a plurality of guide grooves (19), and the first filter plate (18) and the second filter plate (17) can both be slidably installed in the guide grooves (19).

6. A heavy metal wastewater treatment equipment according to claim 4, characterized in that: It also includes a liquid storage tank (4), wherein a liquid storage tank end cover (46) is installed at the top of the liquid storage tank (4), a second motor (41) is installed at the bottom of the liquid storage tank, a partition is provided in the middle of the liquid storage tank (4) and at the upper end of the second motor (41), the output shaft of the second motor (41) passes through the partition, a turntable (42) is rotatably installed above the partition, the turntable is connected to the output shaft of the second motor (41), a plurality of baffles (43) are evenly arranged on the upper surface of the turntable (42), a liquid outlet (44) is opened on the side wall of the liquid storage tank (4), the liquid outlet (44) is connected to the adsorbent water inlet (23) through a pipeline, and a pressure pump (45) is installed on the pipeline.

7. A heavy metal wastewater treatment equipment according to claim 6, characterized in that: A rotating gasket is installed between the rotating disk (42) and the inner wall of the liquid storage box (4).

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