CN221971344U - Coking wastewater denitrification device - Google Patents

Abstract

The utility model discloses a coking wastewater denitrification device, which comprises a mounting seat, wherein a denitrification cylinder is fixedly arranged on the mounting seat, a cylinder cover is arranged on the top surface of the denitrification cylinder, a stirring shaft with a hollow structure is arranged at the central position of the top surface of the cylinder cover in a penetrating manner, stirring rods with hollow structures communicated with the stirring shaft are respectively and fixedly arranged at the two ends of the stirring shaft in the denitrification cylinder at equal intervals along the axial direction of the stirring shaft, a reagent inlet pipe is rotationally arranged in the stirring shaft, a shunt pipe communicated with the reagent inlet pipe is respectively arranged in each stirring rod, a plurality of connecting pipes communicated with the reagent inlet pipe are respectively arranged on each shunt pipe at equal intervals along the axial direction of the shunt pipe, a spray head is respectively arranged on the end surface of the outer side of each connecting pipe, and a liquid inlet pipe communicated with the denitrification cylinder is arranged on the top surface of the cylinder cover. The utility model can not only evenly and effectively inject the mixture into the denitrification barrel, but also stir and mix the solvent in the injection process, thereby improving the service efficiency of the device.

Description

A coking wastewater denitrification device

Technical Field

The utility model relates to the technical field of coking wastewater treatment, in particular to a coking wastewater denitrification device.

Background Art

Coking wastewater mainly comes from the primary cooling of coke oven gas and the production water used in the coking production process, as well as steam condensation wastewater. It refers to the wastewater generated during coal coking, coal gas purification, chemical product recovery and chemical product refining.

The denitrification method in the prior art is to use the MAP precipitation method, in which a mixture of phosphate and magnesium salts is added to coking wastewater containing high concentrations to generate magnesium ammonium phosphate (MAP) precipitate, which can denitrify the wastewater; however, the traditional feeding method is to directly pour the phosphate and magnesium salt solutions into the reaction barrel, which is unevenly distributed, affects the reaction effect, reduces the efficiency of denitrification, and affects the quality requirements of the device.

Utility Model Content

The technical problem to be solved by the utility model is to overcome the above technical defects and provide a coking wastewater denitrification device.

In order to solve the above problems, the technical solution of the utility model is: a coking wastewater denitrification device, comprising a mounting seat and a support rod at the bottom of the mounting seat, a denitrification cylinder is fixedly provided on the mounting seat, a cylinder cover is provided on the top surface of the denitrification cylinder, a stirring shaft with a hollow structure is passed through the central position of the top surface of the cylinder cover, and stirring rods with a hollow structure intersecting therewith are fixedly provided at both ends of the stirring shaft in the denitrification cylinder at equal distances along the axial direction thereof, a feed pipe is rotatably provided in the stirring shaft, and a branch pipe intersecting the feed pipe is provided in each stirring rod, and a plurality of connecting pipes intersecting therewith are provided on each branch pipe at equal distances along the axial direction thereof and extend to the outside of the stirring rod, a nozzle is provided on the outer end surface of each connecting pipe, a liquid inlet pipe intersecting the denitrification cylinder is provided on the top surface of the cylinder cover, and a power device for controlling the rotation of the stirring shaft is also provided.

Furthermore, the power device includes a first bevel gear and a second bevel gear. The first bevel gear is connected to the stirring shaft extending out of the top surface of the cylinder cover. A support seat is fixed on the top surface of the cylinder cover close to the first bevel gear. A rotating shaft is passed through the support seat. A second bevel gear meshing with the first bevel gear is provided at one end of the rotating shaft, and the other end is connected to the output shaft of the motor.

Furthermore, a one-way valve is also provided on the end between the connecting pipe and the spray head.

Furthermore, a discharge pipe which is in communication with the denitrification cylinder is fixedly provided on the bottom surface of the denitrification cylinder, and a switch valve is also provided on the discharge pipe.

Furthermore, the top end of the feed pipe is fixedly connected to the external power injection pipe and is interpenetrating with the external power injection pipe.

The advantages of the utility model compared with the existing technology are:

1. Through the cooperation of the hollow structure stirring shaft, feed pipe, stirring rod and shunt pipe, and under the action of the connecting pipe, one-way valve and nozzle, the external mixture of phosphate salt and magnesium salt can be sent into the feed pipe through the injection pipe. With the cooperation of the shunt pipe and the nozzle, not only can the mixture be uniformly injected into the coking wastewater, but also the rotation operation of the stirring shaft and the stirring rod can be controlled to uniformly stir and mix the solvent in the denitrification cylinder, thereby improving the reaction effect of the device and increasing its denitrification efficiency;

2. With the cooperation of the first bevel gear, the support seat, the rotating shaft, the second bevel gear and the motor, the motor can be started to drive the rotating shaft to rotate, and the stirring shaft is driven to rotate under the action of the meshing of the second bevel gear and the first bevel gear, and the stirring rod is driven to rotate at the same time, so as to evenly mix the solution in the denitrification cylinder.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is an external structural diagram of the utility model.

FIG. 2 is an internal structure diagram of the utility model from a first viewing angle.

FIG3 is an enlarged view of point A in FIG2 of the present invention.

FIG. 4 is an internal structure diagram of the utility model from a second viewing angle.

As shown in the figure: 1. Mounting seat; 2. Support rod; 3. Denitrification cylinder; 4. Cylinder cover; 5. Stirring shaft; 6. Stirring rod; 7. Inlet pipe; 8. Diverter pipe; 9. Connecting pipe; 10. One-way valve; 11. Nozzle; 12. First bevel gear; 13. Second bevel gear; 14. Support seat; 15. Rotating shaft; 16. Motor; 17. Liquid inlet pipe; 18. Power injection pipe; 19. Discharge pipe; 20. Switch valve; 21. Discharge pipe.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

As shown in Figures 1 to 3, a coking wastewater denitrification device comprises a mounting seat 1 and a support rod 2 at the bottom of the mounting seat 1, a denitrification cylinder 3 is fixedly provided on the mounting seat 1, a cylinder cover 4 is provided on the top surface of the denitrification cylinder 3, a stirring shaft 5 with a hollow structure is penetrated at the central position of the top surface of the cylinder cover 4, and stirring rods 6 with a hollow structure intersecting therewith are fixedly provided at both ends of the stirring shaft 5 in the denitrification cylinder 3 at equal distances along the axial direction thereof, a feed pipe 7 is rotatably provided in the stirring shaft 5, and connecting seats are fixedly provided on the inner wall of the stirring shaft 5 at equal distances along the axial direction thereof, and the feed pipe 7 is rotatably connected to a plurality of connecting seats through bearing support;

A shunt pipe 8 intersecting with the feed pipe 7 is provided in each stirring rod 6, and a plurality of connecting pipes 9 intersecting with the feed pipe 7 are provided on each shunt pipe 8 at equal distances along the axial direction thereof and extend to the outside of the stirring rod 6, and a nozzle 11 is provided on the outer end surface of each connecting pipe 9, and a one-way valve 10 is also provided on the end between the connecting pipe 9 and the nozzle 11. The setting of the one-way valve 10 can prevent the coking wastewater from flowing into the feed pipe 7 from the connecting pipe 9 when the feed pipe 7 is not injected with the agent, and a denitrification cylinder 3 is provided on the top surface of the cylinder cover 4. The top end of the feed pipe 7 is fixedly connected to the external power injection pipe 18 and is mutually interpenetrating. Under the action of the power injection pipe 18, the external phosphate and magnesium salt mixture is injected into the feed pipe 7. A discharge pipe 19 is fixedly provided on the bottom surface of the denitrification cylinder 3 and is interpenetrating therewith. A switch valve 20 is also provided on the discharge pipe 19. A discharge pipe 21 is also provided on the bottom surface of the discharge pipe 19 and is interpenetrating therewith. The solvent after denitrification treatment is collected and processed through the discharge pipe 21, and a power device for controlling the rotation of the stirring shaft 5 is also provided.

The power device includes a first bevel gear 12 and a second bevel gear 13. The first bevel gear 12 is connected to the stirring shaft 5 extending out from the top surface of the cylinder cover 4. A support seat 14 is fixedly provided on the top surface of the cylinder cover 4 near the first bevel gear 12. A rotating shaft 15 is passed through the support seat 14. One end of the rotating shaft 15 is provided with a second bevel gear 13 meshing with the first bevel gear 12, and the other end is connected to the output shaft of the motor 16.

In specific use, the coking wastewater is first injected into the denitrification cylinder 3 through the liquid inlet pipe 17, and then the external phosphate and magnesium salt mixture is injected into the inlet pipe 7 under the action of the power injection pipe 18, and then diverted through the diversion pipe 8. Finally, the mixture is effectively distributed to the coking wastewater with the cooperation of the connecting pipe 9, the one-way valve 10 and the nozzle 11. When distributing the mixture to the coking wastewater, the motor 16 is started at the same time to drive the rotating shaft 15 to rotate. Under the action of the engagement of the second bevel gear 13 and the first bevel gear 12, the stirring shaft 5 is rotated, and the stirring rod 6 is driven to rotate at the same time. When the mixture is injected into the denitrification cylinder 3, effective stirring and mixing operations can be performed, thereby ensuring the uniform reaction of the phosphate and magnesium salt mixture with the coking wastewater, and improving the use efficiency of the device.

The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims (5)

1. The utility model provides a coking wastewater denitrification facility, includes mount pad (1) and bracing piece (2) of mount pad (1) bottom, fixed denitrification section of thick bamboo (3) that are equipped with on mount pad (1), be equipped with cover (4), its characterized in that on denitrification section of thick bamboo (3) top surface: the stirring device is characterized in that a stirring shaft (5) with a hollow structure is arranged in the central position of the top surface of the cylinder cover (4), stirring rods (6) with hollow structures communicated with the stirring shaft (5) are fixedly arranged at two ends of the stirring shaft (5) at equal intervals along the axial direction of the stirring shaft respectively, a feed pipe (7) is rotationally arranged in the stirring shaft (5), shunt pipes (8) communicated with the feed pipe (7) are respectively arranged in each stirring rod (6), a plurality of connecting pipes (9) communicated with the shunt pipes are respectively arranged on the shunt pipes (8) at equal intervals along the axial direction of the shunt pipes and extend to the outside of the stirring rod (6), spray heads (11) are respectively arranged on the outer end surfaces of the connecting pipes (9), and a power device for controlling the rotation of the stirring shaft (5) is arranged on the top surface of the cylinder cover (4).

2. The coking wastewater denitrification device according to claim 1, wherein: the power device comprises a first bevel gear (12) and a second bevel gear (13), wherein the first bevel gear (12) is connected to the stirring shaft (5) extending out of the top surface of the cylinder cover (4), a supporting seat (14) is fixedly arranged on the top surface of the cylinder cover (4) close to the first bevel gear (12), a rotating shaft (15) is arranged on the supporting seat (14) in a penetrating mode, one end of the rotating shaft (15) is provided with the second bevel gear (13) meshed with the first bevel gear (12), and the other end of the rotating shaft is connected to an output shaft of the motor (16).

3. A coking wastewater denitrification device according to any one of claims 1 or 2, wherein: a one-way valve (10) is also arranged at the end part between the connecting pipe (9) and the spray head (11).

4. The coking wastewater denitrification device according to claim 1, wherein: the bottom surface of the denitrification barrel (3) is fixedly provided with a discharge pipe (19) communicated with the denitrification barrel, and the discharge pipe (19) is also provided with a switch valve (20).

5. The coking wastewater denitrification device according to claim 1, wherein: the top end of the feeding pipe (7) is fixedly connected to an external power injection pipe (18) and is mutually communicated with the external power injection pipe.