CN117643818A - Automatic stirring mixer for sewage treatment - Google Patents

Abstract

The invention discloses an automatic stirring mixer for sewage treatment, which comprises a mixing tank body, wherein a stirring mechanism is arranged above the mixing tank body and comprises a stirring shaft, a first fixing rod, a first electric motor, a mounting plate and a second electric motor; the dosing mechanism comprises two support plates, a hydraulic cylinder, a quantitative cylinder and a three-way valve, wherein the two support plates are fixedly arranged between the two groups of support plates, and the mixing mechanism comprises a support ring, a flow dividing rod and a stirring impeller; in the use process, firstly, the liquid medicine is pumped into the quantitative cylinder to realize accurate quantification, then the liquid medicine is pushed into the feeding pipeline to be mixed with sewage, in the sewage moving process, the flow dividing rod and the stirring impeller are used for dividing and stirring the sewage, the sewage and the liquid medicine are premixed, the first electric motor is matched with the second electric motor, the stirring shaft is used for stirring the sewage and driving the sewage to roll up and down, the mixing speed of the sewage and the liquid medicine is improved, and the mixing efficiency is improved.

Description

An automatic stirring mixer for sewage treatment

Technical field

The invention relates to the technical field of sewage treatment, specifically an automatic stirring mixer for sewage treatment.

Background technique

Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people; in the process of sewage treatment, The method is to lead the sewage to the water collection tank, adjust the pH of the last cell of the water collection tank, use a first-level dissolved air water pump to lift it to a first-level pressure dissolved air tank, and at the same time inhale air and condensed decolorizing agent, which will be in the first-level pressure dissolved air tank. The first-level saturated gas-dissolved water inside is suddenly released to the first-level air flotation tank to form the first-level treated water; the first-level treated water overflows into the buffer tank, and then the second-level dissolved air water pump is used to control the pH to raise the first-level treated water to the second-level pressure. In the dissolved air tank, air and coagulated decolorizing agent are sucked in at the same time, and the secondary saturated air dissolved water in the secondary pressure dissolved air tank is suddenly released to the secondary air flotation tank to form secondary treated water, which overflows to the sedimentation tank and is discharged after sedimentation. ; The floating mud in the primary and secondary air flotation tanks enters the floating mud tank, is pressed and filtered into a filter cake, and the filtrate is returned to the collection tank.

In the process of sewage treatment, mixing equipment needs to be used to stir the sewage so that it can be fully integrated with the chemicals to purify the sewage. However, the existing mixing equipment only relies on the motor to drive the stirring shaft to rotate to mix the contents of the mixing tank. Stirring sewage at fixed points has a relatively simple structure, which results in low mixing efficiency. It requires a long period of stirring to fully mix the chemicals with the sewage, which also results in low sewage treatment efficiency, and the existing dosing method mainly relies on manual labor. The dosing process is cumbersome and the liquid medicine cannot be accurately controlled.

Contents of the invention

The object of the present invention is to provide an automatic stirring mixer for sewage treatment to solve the problems raised in the above background technology.

In order to achieve the above object, the present invention provides the following technical solution: an automatic stirring mixer for sewage treatment, including a mixing tank, a stirring mechanism is provided above the mixing tank, and the stirring mechanism includes a stirring shaft, a first fixed rod, A first electric motor, a mounting plate and a second electric motor. The output end of the second electric motor is fixedly connected to a first transmission rod. The upper end of the first transmission rod is rotatably connected to a second transmission rod. The first transmission rod is rotatably connected to the upper end of the first transmission rod. The upper surface of the fixed rod is fixedly connected to a second fixed rod, the upper end of the second fixed rod is fixedly connected to a transmission block, and the transmission block is rotationally connected to the lower end of the second transmission rod;

A dosing mechanism is fixedly connected to the side of the mixing tank. The dosing mechanism includes a support plate, a hydraulic cylinder, a dosing cylinder and a three-way valve. The support plate is provided with two groups, and the hydraulic cylinder is fixedly installed on the two groups. between the support plates;

A feed pipe is fixedly connected to the side of the mixing tank near the bottom, and a mixing mechanism is fixedly connected to the inside of the feed pipe. The mixing mechanism includes a support ring, a diverter rod, and a stirring impeller.

By adopting the above technical solution, the piston rod in the hydraulic cylinder first sucks the medicinal liquid into the quantitative cylinder to achieve accurate quantification of the medicinal liquid, and then pushes the medicinal liquid into the feed pipe to mix with the sewage, and the feed pipe will mix The liquid sewage is transported to the mixing tank. The first electric motor cooperates with the second electric motor to make the stirring shaft pump up and down while stirring the sewage to drive the sewage to tumble, thereby increasing the mixing speed of the sewage and the liquid medicine and improving the mixing efficiency; A discharge pipe is provided on the rear side of the mixing tank, and the mixed liquid is discharged through the discharge pipe.

Optionally, a support base plate is fixedly connected to the lower end of the mixing tank, a first support rod is fixedly connected to the left and right sides of the upper surface of the support base, and a second support rod is fixedly connected to the rear side of the upper surface of the support base. Support rod.

Optionally, the upper ends of the first support rod and the second support rod are connected to connecting blocks, and the connecting blocks are fixedly connected to the mounting plate.

Through the above technical solution, the first support rod cooperates with the second support rod to fix the mounting plate, thereby fixing the position of the second electric motor.

Optionally, the left and right ends of the first fixed rod are fixedly connected with limiting sliding sleeves, and the two sets of limiting sliding sleeves are slidingly connected to the first support rods on the left and right sides respectively. The surfaces of the support rods are covered with buffer springs.

Optionally, the upper end of the buffer spring is fixedly connected to the connecting block, and the lower end of the buffer spring is fixedly connected to the limiting sliding sleeve.

By adopting the above technical solution, the limiting sliding sleeve slides on the surface of the first support rod, limiting the sliding position of the first fixed rod to keep it moving in the vertical direction, and then moving the stirring shaft up and down to insert into the inside of the sewage. .

Optionally, the first equipment housing is fixedly connected to the upper surface of the first fixed rod, the first electric motor is fixedly installed inside the first equipment housing, and the output end of the first electric motor Fixedly connected to the stirring shaft, several sets of fixed blocks are fixedly connected to the surface of the stirring shaft, and a stirring rod is fixedly connected to the side of the fixed blocks.

By adopting the above technical solution, the stirring shaft drives several groups of stirring rods to rotate, stirring the inside of the sewage to further mix the sewage and the liquid medicine.

Optionally, a sealing cover plate is fixedly connected to the upper end of the mixing tank, a through hole is provided on the surface of the sealing cover plate, a fixed rod sleeve is fixedly connected to the inside of the through hole, and the stirring shaft and the fixed rod are fixedly connected. The sleeve is slidably connected, the upper surface of the mounting plate is fixedly connected to a second equipment housing, and the second electric motor is fixedly installed inside the second equipment housing.

By adopting the above technical solution, the sealing cover is used to seal the mixing tank to avoid leakage of odor during the mixing process.

Optionally, a feed flange is fixedly connected to the front end of the feed pipe, a liquid feed flange is fixedly connected to the side of the feed pipe, and the support ring is fixedly connected to the inner wall of the feed pipe, so Four sets of diverting rods are fixedly connected to the inner wall of the support ring, a fixed shaft is fixedly connected between the diverting rods, and a stirring impeller is rotatably connected to the side of the fixed shaft.

By adopting the above technical solution, the medicinal liquid and sewage are premixed in the feed pipe. When the mixture of sewage and medicinal liquid flows in the feed pipe, the diverter rod cuts the water flow, and at the same time, the stirring impeller is pushed under the action of the water flow. Rotate and stir the water flow to premix the chemical liquid and sewage.

Optionally, the support plate is fixedly connected to the side of the mixing tank, the lower end of the quantitative cylinder is fixedly connected to the upper support plate, and a piston block is slidably connected to the interior of the quantitative cylinder. The block is fixedly connected to the piston rod in the hydraulic cylinder.

Optionally, the lower port of the three-way valve is fixedly connected to the upper end of the quantitative cylinder, an electric valve is fixedly installed above the three-way valve, and the right port of the three-way valve is fixedly connected to a medicine discharge pipe. One end of the medicine outlet pipe away from the three-way valve is fixedly connected to the liquid inlet flange. The left port of the three-way valve is fixedly connected to a medicine inlet pipe. The medicine inlet pipe is far away from the three-way valve. One end is fixedly connected with a medicine storage box.

By adopting the above technical solution, the electric valve is used to control the opening and closing of the medicine outlet port and the medicine inlet port of the three-way valve. When medicine is fed, the electric valve opens the medicine inlet port and closes the medicine outlet port. When discharging medicine, the electric valve opens the medicine inlet port. Close, open the medicine discharge port, and the quantitative cylinder is used to quantify the incoming medicine liquid to achieve automatic quantification, improve the quantification accuracy and reduce the work intensity of the staff; among which the first electric motor, the second electric motor, the hydraulic cylinder and the electric Valves can be controlled remotely.

Compared with the prior art, the beneficial effects of the present invention are:

The automatic stirring mixer for sewage treatment is provided with a stirring mechanism above the mixing tank. The stirring mechanism includes a stirring shaft, a first fixed rod, a first electric motor, a mounting plate and a second electric motor. The first electric motor The output end drives the stirring shaft to stir the sewage inside the mixing tank. During the stirring process, the second electric motor drives the first electric motor to move up and down, so that the stirring shaft can be inserted up and down in the sewage during the stirring process, so that the sewage flows Rolling up and down during the mixing process further increases the mixing speed of sewage and liquid medicine, thereby improving the efficiency of sewage treatment. It solves the problem that the existing mixing equipment has a simple structure, resulting in low mixing efficiency and requires a long time of stirring to achieve the desired result. The thorough mixing of sewage also leads to the problem of low sewage treatment efficiency.

The automatic stirring mixer for sewage treatment has a feed pipe fixedly connected to the side of the mixing tank near the bottom, and a mixing mechanism is fixedly connected to the inside of the feed pipe. The mixing mechanism includes a support ring, a diverter rod and a mixing impeller. The medicinal liquid is pushed into the feed pipe, and the medicinal liquid and sewage are premixed through the diverter rod and the stirring impeller to further improve the mixing degree of the medicinal liquid and sewage, improve the mixing quality, and increase the sewage treatment efficiency.

This automatic stirring mixer for sewage treatment has a dosing mechanism fixedly connected to the side of the mixing tank. The dosing mechanism includes a support plate, a hydraulic cylinder, a dosing cylinder and a three-way valve. The piston rod in the hydraulic cylinder contracts inward. The medicinal liquid is sucked into the interior of the quantitative cylinder, and then the piston rod in the hydraulic cylinder is pushed outward, pushing the medicinal liquid inside the quantitative cylinder outward to the inside of the feed pipe to achieve quantitative dosing, improve the accuracy of dosing, and solve the problem This solves the problem that the existing dosing method mainly relies on manual dosing, the dosing process is cumbersome, and the medicinal liquid cannot be accurately controlled.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 2 is a schematic structural diagram of a mixing tank of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 3 is a schematic structural diagram of the stirring mechanism of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 4 is a schematic structural diagram of the first fixed rod of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 5 is a schematic structural diagram of the sealing cover plate of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 6 is a schematic structural diagram of the stirring shaft of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 7 is a schematic structural diagram of the dosing mechanism of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 8 is a schematic cross-sectional structural diagram of a quantitative passage of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 9 is a schematic structural diagram of the feed pipeline of an automatic stirring mixer for sewage treatment according to the present invention;

Figure 10 is a schematic structural diagram of a support ring of an automatic stirring mixer for sewage treatment according to the present invention.

In the picture: 1. Mixing tank; 11. Support bottom plate; 12. Sealing cover; 14. First support rod; 15. Second support rod; 16. Fixed rod sleeve; 17. Mixing shaft; 18. Fixed block; 19. Stirring rod; 2. First fixed rod; 21. First equipment shell; 22. First electric motor; 23. Limit sliding sleeve; 24. Buffer spring; 25. Second fixed rod; 26. Transmission block ; 3. Installation plate; 31. Connection block; 32. Second equipment housing; 33. First transmission rod; 34. Second transmission rod; 35. Second electric motor; 4. Support plate; 41. Hydraulic cylinder; 42. Dosing cylinder; 43. Piston block; 44. Three-way valve; 45. Electric valve; 46. Medicine discharge pipe; 47. Medicine feed pipe; 5. Feed pipe; 51. Feed flange; 52. Liquid inlet Flange; 53. Support ring; 54. Diverter rod; 55. Fixed shaft; 56. Mixing impeller.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1 to 10. The present invention provides an automatic stirring mixer for sewage treatment, which includes a mixing tank 1. A stirring mechanism is provided above the mixing tank 1. The stirring mechanism includes a stirring shaft 17 and a first fixed rod 2. , the first electric motor 22, the mounting plate 3 and the second electric motor 35. The output end of the second electric motor 35 is fixedly connected to the first transmission rod 33, and the upper end of the first transmission rod 33 is rotationally connected to the second transmission rod 34. A second fixed rod 25 is fixedly connected to the upper surface of the first fixed rod 2, and a transmission block 26 is fixedly connected to the upper end of the second fixed rod 25. The transmission block 26 is rotationally connected to the lower end of the second transmission rod 34; the mixing tank 1 A dosing mechanism is fixedly connected to the side. The dosing mechanism includes a support plate 4, a hydraulic cylinder 41, a dosing cylinder 42 and a three-way valve 44. The support plate 4 is provided with two groups, and the hydraulic cylinder 41 is fixedly installed between the two sets of support plates 4. ; A feed pipe 5 is fixedly connected to the side of the mixing tank 1 near the bottom, and a mixing mechanism is fixedly connected to the inside of the feed pipe 5. The mixing mechanism includes a support ring 53, a diverter rod 54 and a stirring impeller 56.

During use, the output end of the second electric motor 35 drives the first transmission rod 33 to rotate, and the first transmission rod 33 drives the upper end of the second transmission rod 34 to rotate. At this time, the lower end of the second transmission rod 34 surrounds The transmission block 26 rotates and drives the first fixed rod 2 to move up and down through the second fixed rod 25, thereby driving the first electric motor 22 to move up and down. The output end of the first electric motor 22 drives the stirring shaft 17 to move up and down in the sewage. , at the same time, the output end of the first electric motor 22 drives the stirring shaft 17 to rotate, stirring the sewage while pumping it up and down; and before stirring the sewage, the medicinal liquid is sucked to a certain amount through the piston rod in the hydraulic cylinder 41 In the cylinder 42, the medicinal liquid is quantified. When the medicinal liquid reaches the specified amount, the piston rod in the hydraulic cylinder 41 pushes the medicinal liquid into the feed pipe 5, and the medicinal liquid and sewage are preliminarily mixed with the sewage through the diverter rod 54 and the stirring impeller 56. mix.

As a preferred embodiment of this embodiment, the lower end of the mixing tank 1 is fixedly connected to a support bottom plate 11 , the left and right sides of the upper surface of the support bottom plate 11 are fixedly connected to first support rods 14 , and the rear side of the upper surface of the support bottom plate 11 is fixedly connected to The upper ends of the second support rod 15, the first support rod 14 and the second support rod 15 are connected with a connecting block 31. The connecting block 31 is fixedly connected with the mounting plate 3. The left and right ends of the first fixed rod 2 are fixedly connected with limited space. The sliding sleeve 23 and the two sets of limiting sliding sleeves 23 are slidingly connected to the first support rods 14 on the left and right sides respectively. The surfaces of the two sets of first support rods 14 are connected with buffer springs 24. The upper end of the buffer spring 24 is connected to the connecting block. 31 is fixedly connected, and the lower end of the buffer spring 24 is fixedly connected to the limiting sliding sleeve 23.

At the same time, when the first fixed rod 2 moves up and down, the first fixed rod 2 drives the limiting sliding sleeves 23 at both ends to slide up and down on the surface of the first support rod 14. The limiting sliding sleeves 23 are responsible for the movement of the first fixed rod 2. The position is limited to keep moving in the vertical direction. During the lifting and lowering process of the limiting sliding sleeve 23, the buffer spring 24 is squeezed, and the buffer spring 24 buffers the limiting sliding sleeve 23.

As a preferred embodiment of this embodiment, the first equipment housing 21 is fixedly connected to the upper surface of the first fixed rod 2 , the first electric motor 22 is fixedly installed inside the first equipment housing 21 , and the output end of the first electric motor 22 It is fixedly connected with the stirring shaft 17. The surface of the stirring shaft 17 is fixedly connected with several sets of fixed blocks 18. The sides of the fixed blocks 18 are fixedly connected with the stirring rods 19. The upper end of the mixing tank 1 is fixedly connected with the sealing cover 12. The sealing cover A through hole is provided on the surface of 12, and a fixed rod sleeve 16 is fixedly connected to the inside of the through hole. The stirring shaft 17 is slidingly connected to the fixed rod sleeve 16. The upper surface of the mounting plate 3 is fixedly connected with a second equipment housing 32, and the second electric The motor 35 is fixedly installed inside the second equipment housing 32 .

During the specific stirring process, the output end of the first electric motor 22 drives the stirring shaft 17 to rotate, and the stirring shaft 17 drives several groups of stirring rods 19 on its surface to rotate, stirring the sewage and liquid medicine to mix them; at the same time The stirring shaft 17 slides up and down inside the fixed rod sleeve 16, and the fixed rod sleeve 16 limits the position of the stirring shaft 17.

As a preferred embodiment of this embodiment, a feed flange 51 is fixedly connected to the front end of the feed pipe 5, a liquid feed flange 52 is fixedly connected to the side of the feed pipe 5, and the support ring 53 is fixedly connected to the inner wall of the feed pipe 5. Four sets of diverting rods 54 are fixedly connected to the inner wall of the support ring 53. A fixed shaft 55 is fixedly connected between the diverting rods 54, and a stirring impeller 56 is rotatably connected to the side of the fixed shaft 55.

During the feeding process, the sewage is transported to the inside of the mixing tank 1 through the feed pipe 5. When feeding, the chemical liquid is simultaneously injected into the inside of the feed pipe 5. During the movement of the sewage, the diverter rod 54 The sewage is diverted, and the stirring impeller 56 stirs the sewage at the same time to premix the sewage and the medicinal liquid.

As a preferred embodiment of this embodiment, the support plate 4 is fixedly connected to the side of the mixing tank 1, the lower end of the quantitative cylinder 42 is fixedly connected to the upper support plate 4, and a piston block 43 is slidingly connected to the inside of the quantitative cylinder 42, and the piston block 43 is The piston rod in the hydraulic cylinder 41 is fixedly connected, the lower port of the three-way valve 44 is fixedly connected to the upper end of the quantitative cylinder 42, an electric valve 45 is fixedly installed above the three-way valve 44, and the right port of the three-way valve 44 is fixedly connected with an outlet. Medicine pipeline 46, the end of medicine outlet pipeline 46 away from the three-way valve 44 is fixedly connected to the liquid inlet flange 52, the left port of the three-way valve 44 is fixedly connected to the medicine inlet pipeline 47, the end of the medicine inlet pipeline 47 away from the three-way valve 44 A medicine storage box is fixedly connected.

Specifically, during the dosing process, first the electric valve 45 opens the material port on the side of the medicine inlet pipe 47 in the three-way valve 44 and closes the material port on the side of the medicine outlet pipe 46. At this time, the piston rod in the hydraulic cylinder 41 will The piston block 43 is pulled downward, causing the piston block 43 to slide downward inside the quantitative cylinder 42. At this time, the medicinal liquid in the medicine storage box is sucked into the quantitative cylinder 42. When the medicinal liquid reaches the specified amount, the electric valve 45. Open the material port on the medicine discharge pipe 46 side of the three-way valve 44 and close the material port on the medicine inlet pipe 47 side. At this time, the piston rod in the hydraulic cylinder 41 pushes the piston block 43 upward, and the metering cylinder 42 The medicinal liquid in the pump is pushed into the feed pipe 5, so that the medicinal liquid and sewage are stirred and mixed.

Working principle: When using this device, in order to improve the mixing efficiency, increase the accuracy of liquid medicine distribution, and protect the safety of the staff, the staff remotely controls the first electric motor 22, the second electric motor 35, the hydraulic cylinder 41 and the electric valve during use. 45. Realize dosing and stirring of sewage. During the process of dosing, first pump the liquid into the quantitative cylinder 42, and then push the liquid into the feed pipe 5 to achieve precise dosing while following the sewage. Enter the mixing tank 1 together; at the same time, during the movement of the sewage, the diverter rod 54 diverts the sewage, and the stirring impeller 56 stirs the sewage to premix the sewage and the chemical liquid, and then passes through the first electric motor 22 The stirring shaft 17 is driven to stir the sewage. During the stirring process, the second electric motor 35 drives the stirring shaft 17 to twitch up and down, causing the sewage to tumble up and down during the horizontal rotation, causing it to rotate irregularly, thereby effectively increasing the liquid concentration. Mixing accuracy with sewage.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides an automatic stirring mixer for sewage treatment, includes mixing tank body (1), its characterized in that, the top of mixing tank body (1) is provided with rabbling mechanism, and rabbling mechanism includes (mixing) shaft (17), first dead lever (2), first electric motor (22), mounting panel (3) and second electric motor (35), the output fixedly connected with first transfer line (33) of second electric motor (35), the upper end of first transfer line (33) is rotated and is connected with second transfer line (34), the upper surface fixedly connected with second dead lever (25) of first dead lever (2), the upper end fixedly connected with transmission piece (26) of second dead lever (25), transmission piece (26) with the lower extreme rotation of second transfer line (34) is connected;

the side surface of the mixing tank body (1) is fixedly connected with a dosing mechanism, the dosing mechanism comprises a supporting plate (4), a hydraulic cylinder (41), a quantitative cylinder (42) and a three-way valve (44), the supporting plate (4) is provided with two groups, and the hydraulic cylinder (41) is fixedly arranged between the two groups of supporting plates (4);

the side of the mixing tank body (1) is fixedly connected with a feeding pipeline (5) near the lower position, a mixing mechanism is fixedly connected with the inside of the feeding pipeline (5), and the mixing mechanism comprises a supporting ring (53), a flow dividing rod (54) and a stirring impeller (56).

2. The automatic stirring mixer for sewage treatment according to claim 1, wherein the lower end of the mixing tank body (1) is fixedly connected with a supporting bottom plate (11), the left side and the right side of the upper surface of the supporting bottom plate (11) are fixedly connected with a first supporting rod (14), and the rear side position of the upper surface of the supporting bottom plate (11) is fixedly connected with a second supporting rod (15).

3. An automatic stirring mixer for sewage treatment according to claim 2, characterized in that the upper ends of the first support rod (14) and the second support rod (15) are connected with a connecting block (31), and the connecting block (31) is fixedly connected with the mounting plate (3).

4. The automatic stirring mixer for sewage treatment according to claim 3, wherein the left end and the right end of the first fixing rod (2) are fixedly connected with limiting sliding sleeves (23), the two groups of limiting sliding sleeves (23) are respectively in sliding connection with the left side and the right side of the first supporting rod (14), and the surfaces of the two groups of first supporting rods (14) are respectively sleeved with buffer springs (24).

5. The automatic stirring mixer for sewage treatment according to claim 4, wherein the upper end of the buffer spring (24) is fixedly connected with the connecting block (31), and the lower end of the buffer spring (24) is fixedly connected with the limit sliding sleeve (23).

6. An automatic stirring mixer for sewage treatment according to claim 1, characterized in that the upper surface of the first fixing rod (2) is fixedly connected with a first equipment shell (21), the first electric motor (22) is fixedly installed inside the first equipment shell (21), the output end of the first electric motor (22) is fixedly connected with the stirring shaft (17), the surface of the stirring shaft (17) is fixedly connected with a plurality of groups of fixing blocks (18), and the side surface of the fixing blocks (18) is fixedly connected with the stirring rod (19).

7. The automatic stirring mixer for sewage treatment according to claim 1, wherein the upper end of the mixing tank body (1) is fixedly connected with a sealing cover plate (12), a through hole is formed in the surface of the sealing cover plate (12), a fixed rod sleeve (16) is fixedly connected to the inside of the through hole, the stirring shaft (17) is slidably connected with the fixed rod sleeve (16), a second equipment shell (32) is fixedly connected to the upper surface of the mounting plate (3), and the second electric motor (35) is fixedly mounted in the second equipment shell (32).

8. An automatic stirring mixer for sewage treatment according to claim 1, characterized in that the front end of the feeding pipeline (5) is fixedly connected with a feeding flange (51), the side surface of the feeding pipeline (5) is fixedly connected with a liquid feeding flange (52), the supporting ring (53) is fixedly connected with the inner wall of the feeding pipeline (5), the inner wall of the supporting ring (53) is fixedly connected with four component flow dividing rods (54), a fixed shaft (55) is fixedly connected between the flow dividing rods (54), and the side surface of the fixed shaft (55) is rotatably connected with a stirring impeller (56).

9. The automatic stirring mixer for sewage treatment according to claim 8, wherein the supporting plate (4) is fixedly connected with the side surface of the mixing tank body (1), the lower end of the quantifying cylinder (42) is fixedly connected with the upper side of the supporting plate (4), a piston block (43) is slidably connected inside the quantifying cylinder (42), and the piston block (43) is fixedly connected with a piston rod in the hydraulic cylinder (41).

10. The automatic stirring mixer for sewage treatment according to claim 9, wherein the lower port of the three-way valve (44) is fixedly connected with the upper end of the quantifying cylinder (42), an electric valve (45) is fixedly installed above the three-way valve (44), a medicine outlet pipeline (46) is fixedly connected with the right port of the three-way valve (44), one end of the medicine outlet pipeline (46) away from the three-way valve (44) is fixedly connected with the liquid inlet flange (52), the left port of the three-way valve (44) is fixedly connected with a medicine inlet pipeline (47), and one end of the medicine inlet pipeline (47) away from the three-way valve (44) is fixedly connected with a medicine storage box.