CN219526361U - Printing and dyeing wastewater pretreatment system - Google Patents

Abstract

The utility model relates to the field of wastewater treatment, and discloses a printing and dyeing wastewater pretreatment system, which aims at the problem of high treatment cost of printing and dyeing wastewater in the prior art. The utility model has reasonable structure, ingenious design and simple operation, can conveniently neutralize the alkalinity of the wastewater, strengthen the decomposition speed of organic matters in the water, can conveniently disassemble, clean and replace the filter screen, greatly facilitates the operation of operators and is easy to popularize and use.

Description

Printing and dyeing wastewater pretreatment system

Technical Field

The utility model relates to the field of wastewater treatment, in particular to a printing and dyeing wastewater pretreatment system.

Background

The printing and dyeing wastewater is wastewater discharged from a printing and dyeing mill mainly used for processing cotton, hemp and chemical fiber and blended products thereof. The printing and dyeing wastewater contains more substances harmful to the environment and some solid sediments, so that the printing and dyeing wastewater needs to be subjected to a certain treatment procedure to reach the discharge standard. In the prior art, the printing and dyeing wastewater is usually treated by utilizing the Fenton reaction principle, at present, the micro-treated printing and dyeing wastewater is generally alkaline, the wastewater is required to be converted into neutral when the wastewater is treated, the traditional mode is realized by adding a medicament, the treatment cost is increased to a certain extent, in addition, when the wastewater is pretreated, floaters and particulate matters in the wastewater are required to be removed, the filtering mode is adopted in the current common mode, but the filter screen is inconvenient to assemble and disassemble, so that the difficulty of cleaning the filter screen is relatively high, and the scheme designs the printing and dyeing wastewater pretreatment system.

Disclosure of Invention

The utility model provides a printing and dyeing wastewater pretreatment system, which solves the problems of high COD, difficult degradation and poor biodegradability of the printing and dyeing wastewater in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a printing and dyeing wastewater pretreatment system, includes reaction tank, supersound pond, water pump and installs two filter equipment on the reaction tank and on the supersound pond respectively, a serial communication port, the internally mounted of supersound pond has the ultrasonic generator, the inlet tube of water pump extends to the inside of supersound pond, and the raceway is installed to the delivery port of water pump, and the outlet pipe is installed at the top of raceway, the export of outlet pipe extends to directly over the reaction tank, all install the screw thread post on the outer wall of the relative both sides of reaction tank, the outside of two screw thread posts is all threaded connection has the movable plate, and the top of two movable plates is fixed with the roof, and the roof is located the top of reaction tank, the stirring rake is installed to the bottom of roof, and the inside that drives stirring rake pivoted agitator motor is installed at the top of roof, install the drive motor that is used for driving two screw thread posts pivoted on the outer wall of both sides of reaction tank, filter equipment includes filter bucket and detachable installation filter bucket inside filter screen, and the filter bucket of two filter equipment is fixed respectively on the outer wall of reaction tank and the outer wall of supersound pond, and two filter bucket and two filters the inlet opening between the two and the ultrasonic tank.

Preferably, the water outlet pipe is connected with the water delivery pipe through a connector, and the connector is a rotary joint.

Preferably, a mounting plate is arranged on the outer wall of the reaction tank, and the mounting plate is sleeved outside the water delivery pipe.

Preferably, the inner wall of the filter bucket is fixedly provided with a mounting ring, the mounting is inclined, the top surface of the mounting ring is fixedly provided with a sealing ring, and the filter screen is fixed at the top of the mounting ring and is tightly attached to the sealing ring.

Preferably, the top both sides of filter screen all are fixed with the spliced pole, and the top of two spliced poles all is fixed with the fixed plate, and two fixed plates are located the top both sides of filter bucket respectively, and pass through the hasp between two fixed plates and the both sides outer wall of filter bucket respectively and fix.

Preferably, a pull ring is fixed on the top of the fixing plate.

Preferably, a drain pipe is arranged at the bottom of the outer wall of one side of the reaction tank, and a valve is arranged on the drain pipe.

In the utility model, the following components are added:

1. the printing and dyeing wastewater is alkaline, the wastewater after ultrasonic treatment is acidic, a part of wastewater is subjected to ultrasonic treatment by an ultrasonic pool, and then is mixed with a part of untreated wastewater, so that the purpose of acid-base neutralization is achieved, and meanwhile, the decomposition speed of organic matters in water is also enhanced.

2. Through the cooperation between stirring rake and the motor, reach the purpose of stirring waste water to for accelerating the mixing between the waste water, and the cooperation between drive motor, screw thread post, movable plate and the roof then can drive the stirring rake and remove, thereby waste water misce bene in the reaction tank that can be convenient.

3. Through filter equipment's setting, can filter the floater or some solid particles in the waste water, the dismantlement of filter screen is very convenient moreover to can conveniently clear up the granule that filters down on the filter screen.

The utility model has reasonable structure, ingenious design and simple operation, can conveniently neutralize the alkalinity of the wastewater, strengthen the decomposition speed of organic matters in the water, can conveniently disassemble, clean and replace the filter screen, greatly facilitates the operation of operators and is easy to popularize and use.

Drawings

Fig. 1 is a front cross-sectional view of the present utility model.

Fig. 2 is a cross-sectional view at a in fig. 1.

FIG. 3 is a top view of the reaction cell of the present utility model.

FIG. 4 is a front view of the reaction cell of the present utility model.

Reference numerals in the drawings: 1 reaction tank, 2 ultrasonic tank, 3 water pump, 4 raceway, 5 mounting panel, 6 connector, 7 outlet pipe, 8 filter bucket, 9 filter screen, 10 collar, 11 agitator motor, 12 roof, 13 stirring rake, 14 drain pipe, 15 spliced pole, 16 screw thread post, 17 drive motor, 18 movable plate, 19 ultrasonic generator, 20 fixed plate, 21 pull ring, 22 sealing washer, 23 hasp, 24 inlet opening.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 4, a printing and dyeing wastewater pretreatment system comprises a reaction tank, an ultrasonic tank, a water pump and two filtering devices respectively arranged on the reaction tank and the ultrasonic tank, wherein an ultrasonic generator is arranged in the ultrasonic tank, a water inlet pipe of the water pump extends to the interior of the ultrasonic tank, a water delivery pipe is arranged at a water outlet of the water pump, a water outlet pipe is arranged at the top of the water delivery pipe, an outlet of the water outlet pipe extends to the position right above the reaction tank, the water outlet pipe is connected with the water delivery pipe through a connector, the connector is a rotary joint, the water outlet pipe can be conveniently rotated by the arrangement of the connector, and a water outlet of the water outlet pipe can deviate from the position right above the reaction tank;

the outer wall of the reaction tank is provided with a mounting plate which is sleeved on the outer mounting plate of the water delivery pipe and used for fixing the water delivery pipe;

screw columns are arranged on the outer walls of two opposite sides of the reaction tank, the outer parts of the two screw columns are connected with moving plates in a threaded manner, top plates are fixed at the tops of the two moving plates and positioned at the top of the reaction tank, stirring paddles are arranged at the bottoms of the top plates, the bottoms of the stirring paddles extend to the inside of the reaction tank, and a stirring motor for driving the stirring paddles to rotate is arranged at the top of the top plates;

the outer walls of the two sides of the reaction tank are provided with a transmission motor for driving the two threaded columns to rotate, one end of an output shaft of the transmission motor is in transmission connection with one end of the threaded column, the transmission motor is a servo motor, the threaded columns are driven to rotate positively and negatively through the positive and negative rotation of the transmission motor, so that stirring can be carried out left and right in the reaction tank, waste water in the reaction tank can be uniformly stirred, the bottom of the outer wall of one side of the reaction tank is provided with a drain pipe, and a valve is arranged on the drain pipe;

the filter device comprises a filter bucket and a filter screen detachably arranged in the filter bucket, wherein the filter buckets of the two filter devices are respectively fixed on the outer wall of the reaction tank and the outer wall of the ultrasonic tank, water inlets are formed between the reaction tank and the ultrasonic tank and the two filter buckets, a mounting ring is fixed on the inner wall of the filter bucket, the mounting ring is obliquely arranged, a sealing ring is fixed on the top surface of the mounting ring, the filter screen is fixed on the top of the mounting ring and tightly attached to the sealing ring, particles and floaters in wastewater can be filtered out by the arrangement of the filter device, the floaters or the particles are prevented from entering the reaction tank and the ultrasonic tank, the sealing performance between the filter screen and the mounting ring is enhanced by the arrangement of the sealing ring, the filtering area of the filter screen can be increased by the oblique arrangement of the filter screen, and the deposit accumulation on the surface of the filter screen can be avoided by the floaters, so that the filtering effect of the filter screen can be enhanced;

the filter screen is characterized in that connecting columns are fixed on two sides of the top of the filter screen, fixing plates are fixed on the tops of the two connecting columns, the two fixing plates are respectively located on two sides of the top of the filter bucket, the two fixing plates are respectively fixed with two side outer walls of the filter bucket through lock catches, pull rings are fixed on the tops of the fixing plates, and the fixing plates, the connecting columns and the pull rings are arranged to facilitate disassembly and assembly of the filter screen, so that sediment on the filter screen is cleaned conveniently.

Working principle: when the wastewater is treated, firstly inputting a part of wastewater into the filter bucket 8 fixed on the outer wall of the ultrasonic pool 2, so that floating matters or particles in the wastewater are filtered by the filter screen 9 and then enter the interior of the ultrasonic pool 2, the same is achieved, then inputting the other part of wastewater with the same quantity into the filter bucket 8 fixed on the outer wall of the reaction pool 1, filtering the wastewater and then entering the interior of the reaction pool 1, then adding ferrous sulfate and hydrogen peroxide, then starting the ultrasonic generator 19, generating strong oxidative hydroxyl free radicals for decomposing organic matters in water, after the wastewater in the ultrasonic pool 2 is subjected to ultrasonic treatment for 30 seconds, then staying in the interior of the ultrasonic pool 2 for 30 minutes, and carrying out ultrasonic treatment, so that the Fenton strengthening is enhanced, then starting the water pump 3 to input the wastewater in the ultrasonic pool 2 into the interior of the reaction pool 1 for neutralization reaction, and simultaneously starting the stirring motor 11 and the two transmission motors 17, and driving the stirring motor 11 to stir the wastewater 13 in the reaction pool 1, so that the wastewater which is input from the ultrasonic pool 2 can be fully and reversely rotated with the two transmission motors 1, and the two transmission paddles 16 can be fully moved in the reaction pool 1, and the reverse rotation of the two transmission paddles 18 can be fully moved in the reaction pool 1, and the reverse rotation of the two transmission paddles can be fully moved, and the reverse rotation of the wastewater can be fully moved in the reaction pool 1;

when the filter screen is required to be cleaned, the filter screen 9 can be taken out from the filter hopper 8 to be cleaned only by opening the lock catch 23 between the fixed plate 20 and the filter hopper 8 and simultaneously pulling the two pull rings 21 on the same filter screen 9, and after the filter screen 9 is cleaned, the filter screen 9 is replaced into the filter hopper 8 again, and then the lock catch is closed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The utility model provides a printing and dyeing wastewater pretreatment system, includes reaction tank (1), supersound pond (2), water pump (3) and installs two filter equipment on reaction tank (1) and supersound pond (2) respectively, a serial communication port, the internally mounted of supersound pond (2) has ultrasonic generator (19), the inlet tube of water pump (3) extends to the inside of supersound pond (2), and raceway (4) are installed to the delivery port of water pump (3), outlet pipe (7) are installed at the top of raceway (4), the export of outlet pipe (7) extends to directly over reaction tank (1), all install screw thread post (16) on the both sides outer wall that reaction tank (1) are relative, the outside of two screw thread posts (16) is all threaded connection has movable plate (18), and the top of two movable plate (18) is fixed with roof (12), and roof (12) are located the top of reaction tank (1), paddle (13) are installed to the bottom of roof (12), and extend to the inside of reaction tank (1) in the delivery port of delivery port (4), screw thread post (16) are installed on the motor (16) of motor (13) and are used for driving the rotation of two screw thread posts (17), the filter device comprises a filter hopper (8) and a filter screen (9) detachably arranged inside the filter hopper (8), the filter hoppers (8) of the two filter devices are respectively fixed on the outer wall of the reaction tank (1) and the outer wall of the ultrasonic tank (2), and water inlets (24) are formed between the reaction tank (1) and the ultrasonic tank (2) and the two filter hoppers (8).

2. The printing and dyeing wastewater pretreatment system according to claim 1, wherein the water outlet pipe (7) is connected with the water delivery pipe (4) through a connector (6), and the connector (6) is a rotary connector.

3. The printing and dyeing wastewater pretreatment system according to claim 1, wherein a mounting plate (5) is mounted on the outer wall of the reaction tank (1), and the mounting plate (5) is sleeved outside the water delivery pipe (4).

4. The printing and dyeing wastewater pretreatment system according to claim 1, wherein a mounting ring (10) is fixed on the inner wall of the filter bucket (8), the installation is inclined, a sealing ring (22) is fixed on the top surface of the mounting ring (10), and the filter screen (9) is fixed on the top of the mounting ring (10) and tightly attached to the sealing ring (22).

5. The printing and dyeing wastewater pretreatment system according to claim 1, wherein connecting columns (15) are fixed on two sides of the top of the filter screen (9), fixing plates (20) are fixed on the tops of the two connecting columns (15), the two fixing plates (20) are respectively located on two sides of the top of the filter bucket (8), and the two fixing plates (20) are respectively fixed with two side outer walls of the filter bucket (8) through lock catches (23).

6. The printing and dyeing wastewater pretreatment system according to claim 5, wherein a pull ring (21) is fixed to the top of the fixing plate (20).

7. The printing and dyeing wastewater pretreatment system according to claim 1, wherein a drain pipe (14) is installed at the bottom of one side outer wall of the reaction tank (1), and a valve is installed on the drain pipe (14).