CN-224226796-U - Automatic acid adding device for wastewater heavy metal treatment

CN224226796UCN 224226796 UCN224226796 UCN 224226796UCN-224226796-U

Abstract

The utility model discloses an automatic acid feeder for wastewater heavy metal treatment, and relates to the technical field of wastewater treatment. The utility model comprises a treatment barrel, wherein a second rotating rod is rotatably connected to the treatment barrel, a connecting pipe communicated with the inside of the treatment barrel is fixedly connected to the upper surface of the treatment barrel, an acid adding tank communicated with the inside of the connecting pipe is fixedly connected to the upper end of the connecting pipe, the lower end of the second rotating rod rotatably penetrates into the treatment barrel and is rotatably connected with the bottom wall of the treatment barrel, and a mounting ring is arranged at the lower end of the second rotating rod. The utility model can carry out up-and-down displacement and also can carry out sector reciprocating rotation through the positioning rod and the stirring rod, and the up-and-down convection of the wastewater in the treatment barrel can be further increased in the up-and-down displacement process of the positioning rod, the stirring rod and the mounting ring, so that the mixing efficiency between the acid solution and the wastewater is further improved, the efficiency of treating heavy metals in the wastewater is further improved, and the working efficiency of the automatic acid adder for treating heavy metals in the wastewater is further improved.

Inventors

LU AOSHUANG
MU NA
ZHOU YU
ZHU SHIYUN

Assignees

邦达诚环境监测中心（江苏）有限公司

Dates

Publication Date: 20260512
Application Date: 20250529

Claims (7)

1. The automatic acid adding device for wastewater heavy metal treatment comprises a treatment barrel (1), and is characterized in that a second rotating rod (10) is rotationally connected to the treatment barrel (1), a connecting pipe (4) communicated with the inside of the treatment barrel is fixedly connected to the upper surface of the treatment barrel (1), an acid adding tank (3) communicated with the inside of the connecting pipe is fixedly connected to the upper end of the connecting pipe (4), the lower end of the second rotating rod (10) rotationally penetrates into the treatment barrel (1) and is rotationally connected with the bottom wall of the treatment barrel (1), a mounting ring (11) is arranged at the lower end of the second rotating rod (10), two hydraulic rods (12) are fixedly connected to the upper surface of the treatment barrel (1), and the telescopic ends of the hydraulic rods (12) slidingly penetrate into the treatment barrel (1). The stirring mechanism is arranged on the mounting ring (11), the driving mechanism is arranged on the treatment barrel (1) and drives the stirring mechanism to rotate in a reciprocating manner, so that the wastewater in the treatment barrel (1) is stirred, and the wastewater and the acid solution are uniformly mixed; The hydraulic rod (12) is provided with a moving mechanism, the lower side of the moving mechanism is in sliding connection with the mounting ring (11), and the moving mechanism drives the mounting ring (11) to move up and down, so that the stirring mechanism on the mounting ring (11) can be driven to move up and down in the reciprocating stirring process, the up and down convection of wastewater in the treatment barrel (1) is increased, and the mixing efficiency of the wastewater and the acid solution is further improved; The acid adding tank (3) is internally provided with a mixing mechanism, and the driving mechanism drives the mixing mechanism to stir in the acid adding tank (3), so that the acid solution in the acid adding tank (3) is stirred, and the phenomena of precipitation and insufficient dissolution of the acid solution are avoided.
2. The automatic acid adding device for wastewater heavy metal treatment according to claim 1, wherein the driving mechanism comprises a motor (13), the motor (13) is fixedly connected with the upper surface of the treatment barrel (1), a first bevel gear (14) is fixedly connected with a rotating output shaft of the motor (13), a supporting rod (15) is rotatably connected with the upper surface of the treatment barrel (1), a second bevel gear (16) is fixedly sleeved on the outer surface of the supporting rod (15), the second bevel gear (16) is meshed with the first bevel gear (14), a cross rod (17) is fixedly connected with the upper end of the supporting rod (15), a vertical column (20) is fixedly connected with one end of the cross rod (17) away from the supporting rod (15), a fixed block (18) is fixedly sleeved on the outer surface of the second rotating rod (10), a sliding groove (19) extending out of the lower surface of the fixed block (18) is formed in the upper surface of the fixed block, the vertical column (20) is slidingly connected with the sliding groove (19), a viewing port (2) is formed in the treatment barrel (1), and the viewing port (2) is formed in the glass material.
3. The automatic acid adding device for wastewater heavy metal treatment according to claim 2, wherein the mixing mechanism comprises a mounting box (6), the mounting box (6) is fixedly mounted on the upper surface of the acid adding tank (3), a supporting frame (21) is fixedly sleeved on the outer surface of the acid adding tank (3), the lower side of the supporting frame (21) is fixedly connected with the upper surface of the treatment barrel (1), the mounting box (6) is hollow, the upper end of the second rotating rod (10) penetrates into the mounting box (6) in a rotating mode, and a second gear (23) is fixedly sleeved on the outer surface of the second rotating rod (10).
4. The automatic acid adding device for wastewater heavy metal treatment according to claim 3, wherein the mixing mechanism further comprises a first rotating rod (8), the first rotating rod (8) is rotatably connected between the inner walls of the upper side and the lower side of the acid adding tank (3), the upper end of the first rotating rod (8) rotatably penetrates into the mounting box (6), a first gear (7) is fixedly sleeved on the outer surface of the first rotating rod (8), the first gear (7) is in meshed connection with a second gear (23), the first gear (7) and the second gear (23) are both positioned in the mounting box (6), a feed inlet (22) communicated with the inside of the acid adding tank is fixedly connected to the outer surface of the acid adding tank (3), a plurality of mixing rods (9) are fixedly connected to the outer surface of the first rotating rod (8), and a liquid level sensor (5) is mounted in the acid adding tank (3).
5. The automatic acid adder for wastewater heavy metal treatment according to claim 3, wherein the stirring mechanism comprises a fixed ring (31), the fixed ring (31) is slidably sleeved on the outer surface of the second rotating rod (10), a plurality of positioning rods (24) are fixedly connected between the outer surface of the fixed ring (31) and the inner wall of the mounting ring (11), a plurality of stirring rods (25) are fixedly connected on the outer surface of the positioning rods (24), two limiting grooves (29) are formed in the inner wall of the fixed ring (31), and a limiting block (28) is fixedly connected on the outer surface of the second rotating rod (10), and the limiting block (28) is slidably connected with the limiting groove (29).
6. The automatic acid adding device for wastewater heavy metal treatment according to claim 5, wherein the moving mechanism comprises two fixing rods (32), the two fixing rods (32) are respectively and fixedly connected to the telescopic ends of the two hydraulic rods (12), two limiting ring grooves (26) are respectively formed in the outer surfaces of the upper side and the lower side of the mounting ring (11), two connecting ring grooves (30) are formed in the mounting ring (11), the connecting ring grooves (30) are communicated with the inside of the limiting ring grooves (26) on the upper side and the lower side, and the fixing rods (32) are in sliding connection with the connecting ring grooves (30).
7. The automatic acid adder for wastewater heavy metal treatment according to claim 6, wherein the moving mechanism further comprises four sliding balls (27), the four sliding balls (27) are fixedly sleeved on the outer surfaces of the two fixing rods (32), the sliding balls (27) are matched with the limiting ring grooves (26), and the sliding balls (27) are in sliding connection with the limiting ring grooves (26).

Description

Automatic acid adding device for wastewater heavy metal treatment Technical Field The utility model belongs to the technical field of wastewater treatment, and particularly relates to an automatic acid feeder for wastewater heavy metal treatment. Background Industrial wastewater comprises production wastewater, production wastewater and cooling water, and refers to wastewater and waste liquid generated in the industrial production process, the industrial wastewater contains a large amount of heavy metal pollutants, and the treatment of heavy metals in the industrial wastewater is a crucial environmental protection measure, so that toxic heavy metal elements in the wastewater are reduced or eliminated, and water resources are protected from pollution. In the treatment of heavy metals in wastewater, an acidic solution needs to be added into the wastewater, the pH value of the wastewater can be effectively regulated by the acidic solution, and heavy metal ions are more easily converted from a dissolved state to a precipitated state in an acidic environment. The acid solution is generally dripped or poured from the surface of the wastewater, and the acid solution is generally stirred by the acid adding device to promote the mixing of the acid solution and the wastewater by stirring in a rotary stirring mode, but because the acid solution is generally dripped on the upper layer of the wastewater, the upper layer wastewater is firstly contacted with the acid solution and the pH value is changed, the lower layer wastewater is far away from the upper layer wastewater, the convection of the upper layer wastewater and the lower layer wastewater is weaker by the rotary stirring mode, and the lower layer wastewater can reach the target pH value only after a longer time, so that the stirring time is prolonged, and the efficiency and the effect of wastewater treatment are reduced. Disclosure of utility model Aiming at the existing acid adding device for treating heavy metals in wastewater, acid solution is generally dripped or poured from the surface of the wastewater, and the acid adding device generally utilizes a rotary stirring mode to stir the wastewater and the acid solution so as to stir and promote the mixing of the acid solution and the wastewater, but because the acid solution is generally dripped on the upper layer of the wastewater, the upper layer wastewater firstly contacts the acid solution and changes the pH value, the lower layer wastewater is far away from the upper layer wastewater, the rotary stirring mode ensures that the convection of the upper layer wastewater and the lower layer wastewater is weaker, and the lower layer wastewater can reach the target pH value only after a longer time, thereby prolonging the stirring time and reducing the efficiency and the effect of wastewater treatment. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to an automatic acid feeder for wastewater heavy metal treatment, which comprises a treatment barrel, wherein a second rotating rod is rotationally connected to the treatment barrel, a connecting pipe communicated with the inside of the treatment barrel is fixedly connected to the upper surface of the treatment barrel, an acid adding tank communicated with the inside of the connecting pipe is fixedly connected to the upper end of the connecting pipe, the lower end of the second rotating rod rotationally penetrates into the treatment barrel and is rotationally connected with the bottom wall of the treatment barrel, a mounting ring is arranged at the lower end of the second rotating rod, two hydraulic rods are fixedly connected to the upper surface of the treatment barrel, and the telescopic ends of the hydraulic rods slidingly penetrate into the treatment barrel; the stirring mechanism is arranged on the mounting ring, the driving mechanism is arranged on the treatment barrel and drives the stirring mechanism to rotate in a reciprocating manner, so that the wastewater in the treatment barrel is stirred, and the wastewater and the acid solution are uniformly mixed; The hydraulic rod is provided with a moving mechanism, the lower side of the moving mechanism is in sliding connection with the mounting ring, and the moving mechanism drives the mounting ring to move up and down, so that the stirring mechanism on the mounting ring can be driven to move up and down in the reciprocating stirring process, the up and down convection of wastewater in the treatment barrel is increased, and the mixing efficiency of the wastewater and the acid solution is further improved; the acid adding tank is internally provided with a mixing mechanism, and the driving mechanism drives the mixing mechanism to stir in the acid adding tank, so that the acid solution in the acid adding tank is stirred, and the phenomena of precipitation and insufficient dissolution of the acid solution are avoided. Further, actua