CN213202615U

CN213202615U - Transformer wastewater's processing and recycling system

Info

Publication number: CN213202615U
Application number: CN202020984673.6U
Authority: CN
Inventors: 于玉彬; 李绍伟; 赵玮; 王旭平
Original assignee: Suzhou Suke Environmental Protection Science & Technology Co ltd
Current assignee: Suzhou Suke Environmental Protection Science & Technology Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-05-14
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a transformer waste water's processing and recycling system, including water intake system, pretreatment systems, MCR system, active carbon processing system, recycling system and sludge treatment system, pretreatment systems, MCR system, active carbon processing system are connected to respectively sludge treatment system, water intake system intakes and passes through in proper order get into the recycling system retrieval and utilization after pretreatment systems, MCR system, active carbon processing system handle. The utility model provides a transformer waste water's processing and recycling system can improve waste water treatment quality of water, realizes the retrieval and utilization of waste water.

Description

Transformer wastewater's processing and recycling system

Technical Field

The utility model belongs to the technical field of sewage treatment, in particular to transformer waste water's processing and recycling system.

Background

The transformer production wastewater is mainly divided into iron core paint spraying wastewater and coil polishing wastewater, and the wastewater is from paint spraying and coil polishing procedures in transformer production.

The paint spraying waste water is mainly from the paint spraying waste water formed by washing the air of the operation area of the paint spraying chamber with water in a wet paint spraying chamber and transferring paint substances and organic solvents in the air into the water. The waste water contains a large amount of paint particles, and the water quality of the waste water is determined by the used coating (mainly nitro paint, amino paint, alkyd paint and epoxy paint), solvent (such as ethanol, acetone, esters and benzene) and auxiliary agent.

The coil polishing wastewater mainly comes from coil cutting cooling water, coil polishing washing water and dust collection spray water, and the wastewater contains a large amount of suspended matters (mainly epoxy resin) to be separated.

The traditional transformer production wastewater treatment process has unstable effluent quality and large medicament consumption; the labor is more, the discharged water can not meet the recycling requirement, and a large amount of sludge is generated to be treated. The transformer production wastewater is usually small in water quantity, but the sludge production amount is large, and the problems of large occupied area, long construction period and the like can be caused by using the traditional process.

Therefore, the development of the transformer production wastewater treatment and recycling system which can meet the recycling requirement, is unattended, has small medicament addition amount and can realize automatic sludge dewatering operation has great significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transformer waste water's processing and recycling system can improve transformer waste water's treatment effect, realizes going out the water retrieval and utilization.

Based on the above problem, the utility model provides a technical scheme is:

the utility model provides a transformer waste water's processing and recycling system, includes water inlet system, pretreatment system, MCR system, active carbon treatment system, recycling system and sludge treatment system, pretreatment system, MCR system, active carbon treatment system are connected to respectively sludge treatment system, water inlet system is intake and is passed through in proper order pretreatment system, MCR system, active carbon treatment system handle the back and get into recycling system retrieval and utilization.

In some of the embodiments, the water inlet system comprises a regulating reservoir, the regulating reservoir is connected to the pretreatment system through a water inlet pipe, a water inlet pump, a water inlet check valve, a water inlet valve and a water inlet flow meter are sequentially arranged on the water inlet pipe along the water inlet direction, a first liquid level meter is arranged in the regulating reservoir, and the first liquid level meter and the water inlet pump are respectively connected to the PLC control system.

In some embodiments, the pretreatment system comprises a sedimentation tank, a first dosing device for adding alkali liquor, and a second dosing device for adding flocculant, wherein the first dosing device and the second dosing device are respectively connected to the water inlet pipe through dosing pipes, and the first dosing device and the second dosing device are respectively connected to an aeration fan through a first dosing aeration pipe and a second dosing aeration pipe; the inlet tube is connected to the sedimentation tank, be equipped with two pipeline mixers on the inlet tube and be used for mixing the influent water and adding the medicament, the sedimentation tank bottom is connected to through first mud pipe, be equipped with first mud automatic valve on the first mud pipe, first mud automatic valve is connected to PLC control system.

In some embodiments thereof, the MCR system comprises an MCR membrane tank, and an MCR product water tank, the MCR membrane tank disposed within the MCR membrane tank, the MCR membrane tank connected to an aeration fan via an MCR aeration pipe, the MCR membrane tank connected to the MCR product water tank via an MCR product water pipe;

the MCR water production pipe is sequentially provided with an MCR water production pressure gauge, a water production automatic valve, an MCR water production pump, an MCR water production check valve, an MCR water production valve and an MCR water production flowmeter along the water flow direction;

the MCR water production pool is connected to the MCR water production pipe through an MCR backwashing pipe, a first MCR backwashing valve, an MCR backwashing pump, a backwashing filter, a second MCR backwashing valve, an MCR backwashing pressure gauge, an MCR backwashing flow meter and a backwashing automatic valve are sequentially arranged on the MCR backwashing pipe along the water flow direction, and the MCR backwashing pipe is connected to the regulating pool through a first emptying pipe;

the system is characterized in that a second liquid level meter is arranged in the MCR membrane pool, a third liquid level meter is arranged in the MCR water production pool, the bottom of the MCR membrane pool is connected to the sludge treatment system through a second sludge discharge pipe, a second sludge discharge automatic valve is arranged on the second sludge discharge pipe, and the MCR water production pump, the water production automatic valve, the MCR backwashing pump, the backwashing automatic valve, the second sludge discharge automatic valve, the second liquid level meter and the third liquid level meter are respectively connected to the PLC control system.

In some embodiments, the activated carbon treatment system comprises an activated carbon tower, a water inlet of the activated carbon tower is connected to the MCR water production tank through an activated carbon water inlet pipe, and a first activated carbon water inlet valve, an activated carbon water feeding pump, an activated carbon check valve, an activated carbon water inlet pressure gauge, a second activated carbon water inlet valve and an activated carbon water inlet flow meter are sequentially arranged on the activated carbon water inlet pipe along a water flow direction;

a water production port of the activated carbon tower is connected to a reuse water pool through an activated carbon water production pipe, and an activated carbon water production flow meter is arranged on the activated carbon water production pipe; the reuse water tank is connected to a backwashing port of the activated carbon tower through an activated carbon backwashing pipe, and a first activated carbon backwashing valve, an activated carbon backwashing pump, an activated carbon backwashing check valve, an activated carbon backwashing pressure gauge, a second activated carbon backwashing valve and an activated carbon backwashing flow meter are sequentially arranged on the activated carbon backwashing pipe along the water flow direction;

a backwashing water outlet of the activated carbon tower is connected to the sludge treatment system through a backwashing water discharge pipeline, the bottom of the activated carbon tower is connected to the regulating tank through a third vent pipe, and the third vent pipe is provided with a third vent valve;

and a fourth liquid level meter is arranged in the reuse water tank, and the activated carbon water feeding pump, the activated carbon backwashing pump and the fourth liquid level meter are respectively connected to the PLC control system.

In some of these embodiments, recycling system includes at least one workshop catch basin, the workshop catch basin is connected to through the retrieval and utilization pipeline the retrieval and utilization pond, be equipped with first retrieval and utilization valve, retrieval and utilization water pump, retrieval and utilization check valve, retrieval and utilization manometer, second retrieval and utilization valve, retrieval and utilization flowmeter and first retrieval and utilization automatic valve along the water flow direction on the retrieval and utilization pipeline in proper order, through retrieval and utilization leg joint between the retrieval and utilization pipeline of parallelly connected setting, be equipped with the second retrieval and utilization automatic valve on the retrieval and utilization branch pipe, be equipped with the fifth level gauge in the workshop catch basin, retrieval and utilization water pump, first retrieval and utilization automatic valve, second retrieval and utilization automatic valve, fifth level gauge are connected to PLC control system respectively.

In some embodiments, the sludge treatment system comprises a sludge tank, a sludge-water separator and a third chemical adding device, wherein the bottom of the sludge tank is connected to the sludge-water separator through a sludge concentration pipe, and a third sludge discharge automatic valve, a sludge discharge valve and a sludge flow meter are sequentially arranged on the sludge concentration pipe along the sludge discharge direction; the mud-water separator is connected to the regulating tank through a filtrate discharge pipe; the third dosing device is connected to the mud-water separator through a sludge dosing pipe, and the third dosing device is connected to the aeration fan through a third dosing aeration pipe.

In some embodiments, the reuse pipe is connected to the sludge-water separator via a flush pipe, and a flush valve is disposed on the flush pipe.

Compared with the prior art, the utility model has the advantages that:

1. the MCR process has the characteristics of excellent effluent quality, 100% removal of suspended matters, effective removal of suspended matters in water, small occupied area, full-automatic control, small dosage of medicament and the like, can deodorize, decolor and remove trace elements by activated carbon adsorption, can adsorb various types of organic matters, can ensure that the water quality reaches the standard, and improves the effluent quality by adopting the MCR and activated carbon adsorption combined process to realize the recycling of the transformer production wastewater after treatment;

2. the additive amount of the agent can be reduced, and the wastewater treatment cost is reduced;

3. the wastewater treatment and recycling system can be operated automatically, and realizes unattended and automatic operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a transformer wastewater treatment and recycling system of the present invention;

wherein:

1. a regulating tank; 2. a water inlet pipe; 3. a water inlet pump; 4. a water inlet check valve; 5. a water inlet valve; 6. a water inlet flow meter; 7. a pipeline mixer; 8. a sedimentation tank; 9. a first dosing device; 10. a second dosing device; 11. a medicine feeding pipe; 12. a first dosing aeration pipe; 13. a second dosing aeration pipe; 14. a second liquid level meter; 15. a first sludge discharge pipe; 16. a first mud discharge automatic valve; 17. an MCR membrane pool; 18. an MCR membrane box; 19. a second level gauge; 20. an MCR water production pipe; 21. an MCR water production pressure gauge; 22. a water production automatic valve; 23. an MCR water producing pump; 24. an MCR water production check valve; 25. an MCR water production valve; 26. An MCR water production flow meter; 27. an MCR water producing pool; 28. a third liquid level meter; 29. an MCR backwash tube; 30. a first MCR backwash valve; 31. an MCR backwash pump; 32. an MCR backwash check valve; 33. Backwashing the filter; 34. a second MCR backwash valve; 35. MCR backwashing pressure gauge; 36. an MCR backwash flow meter; 37. backwashing the automatic valve; 38. a second sludge discharge pipe; 39. a second sludge discharge automatic valve; 40. a first blow-down pipe; 41. a first vent valve; 42. an activated carbon water inlet pipe; 43. a first activated carbon inlet valve; 44. An active carbon water pump; 45. an activated carbon check valve; 46. an activated carbon pressure gauge; 47. a second activated carbon inlet valve; 48. an activated carbon water intake flow meter; 49. an activated carbon tower; 50. an activated carbon water production pipe; 51. an activated carbon water production flow meter; 52. a reuse water tank; 53. a fourth liquid level meter; 54. an activated carbon backwash tube; 55. A first activated carbon backwash valve; 56. an activated carbon backwash pump; 57. an activated carbon backwash check valve; 58. an activated carbon backwashing pressure gauge; 59. a second activated carbon backwash valve; 60. an activated carbon backwash flow meter; 61. a third blow-down pipe; 62. a third vent valve; 63. a second blow-down pipe; 64. a second vent valve; 65. a recycling pipeline; 66. a first back-use valve; 67. a recycling water pump; 68. a recycling check valve; 69. recycling the pressure gauge; 70. a second recycle valve; 71. recycling the flowmeter; 72. a first automatic return valve; 73. a workshop water collecting tank; 74. a fifth liquid level meter; 75. a flush tube; 76. a flush valve; 77. a sludge tank; 78. a mud-water separator; 79. a third dosing device; 80. a sludge concentration pipe; 81. a third sludge discharge automatic valve; 82. a mud valve; 83. a sludge flow meter; 84. a sludge dosing pipe; 85. a third dosing aeration pipe; 86. a mud discharge main pipe; 87. a mud discharge main valve; 88. a main blow-down pipe; 89. a main atmospheric valve; 90. an aeration fan; 91. recycling the branch pipe; 92. a second reuse automatic valve; 93. and discharging a filtrate pipe.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

Referring to fig. 1, for the utility model discloses the structure schematic diagram provides a transformer waste water's processing and recycling system, including water inlet system, pretreatment system, MCR system, active carbon processing system, recycling system and sludge treatment system, pretreatment system, MCR system, active carbon processing system are connected to sludge treatment system respectively, and water inlet system intakes and gets into the recycling system retrieval and utilization after pretreatment system, MCR system, active carbon processing system handle in proper order.

The water inlet system comprises a regulating reservoir 1, wherein the regulating reservoir 1 is connected to the pretreatment system through a water inlet pipe 2, a water inlet pump 3, a water inlet check valve 4, a water inlet valve 5 and a water inlet flow meter 6 are sequentially arranged on the water inlet pipe 2 along the water inlet direction, a first liquid level meter 14 is arranged in the regulating reservoir 1, and the first liquid level meter 14 and the water inlet pump 3 are respectively connected to the PLC control system. Adjust quality of water yield through equalizing basin 1, set up first level gauge 14 and be used for controlling intake pump 3 to open and stop, when 1 low liquid level in equalizing basin, close intake pump 3, when 1 high liquid level in equalizing basin, open intake pump 3.

The pretreatment system comprises a sedimentation tank 8, a first dosing device 9 for adding alkali liquor and a second dosing device 10 for adding flocculating agent, wherein the first dosing device 9 and the second dosing device 10 are respectively connected to a water inlet pipe 2 through a dosing pipe 11, the first dosing device 9 adds alkali liquor into wastewater to maintain the pH value of the wastewater at 9-11 so as to provide good conditions for subsequent flocculation, the second dosing device 10 adds flocculating agent into the wastewater to enable the wastewater to react with the flocculating agent and precipitate in the sedimentation tank 8, the first dosing device 9 and the second dosing device 10 are respectively connected to an aeration fan 90 through a first dosing pipe 12 and a second dosing pipe 13, and medicaments are mixed through aeration. The water inlet pipe 2 is connected to the sedimentation tank 8, and two pipeline mixers 7 are connected in series on the pipe section between the chemical feeding pipe 11 and the sedimentation tank 8 on the water inlet pipe 2 for mixing the inlet water and the added chemicals. The bottom of the sedimentation tank 8 is connected to a sludge treatment system through a first sludge discharge pipe 15, a first sludge discharge automatic valve 16 is arranged on the first sludge discharge pipe 15, and the first sludge discharge automatic valve 16 is connected to a PLC control system.

The MCR system comprises an MCR membrane pool 17, an MCR membrane box 18 and an MCR water production pool 27, wherein the MCR membrane box 18 is arranged in the MCR membrane pool 17, the MCR membrane box 18 is connected to an aeration fan 90 through an MCR aeration pipe, and is connected to the MCR water production pool 27 through an MCR water production pipe 20. The MCR water production pipe 20 is sequentially provided with an MCR water production pressure gauge 21, a water production automatic valve 22, an MCR water production pump 23, an MCR water production check valve 24, an MCR water production valve 25 and an MCR water production flow meter 26 along the water flow direction.

The water in the MCR water production tank 27 can be used as backwashing water of the MCR membrane box 18, the MCR water production tank 27 is connected to the MCR water production pipe 20 through the MCR backwashing pipe 29, a first MCR backwashing valve 30, an MCR backwashing pump 31, an MCR backwashing check valve 32, a backwashing filter 33, a second MCR backwashing valve 34, an MCR backwashing pressure gauge 35, an MCR backwashing flow meter 36 and a backwashing automatic valve 37 are sequentially arranged on the MCR backwashing pipe 29 along the water flow direction, and the MCR backwashing pipe 29 is connected to the regulating tank 1 through a first emptying pipe 40 to empty the water in the MCR water production tank 27.

Be equipped with second level gauge 19 in MCR membrane cisterna 17, MCR produces and is equipped with third level gauge 28 in the pond 27, MCR membrane cisterna 17 bottom is connected to sludge treatment system through second mud pipe 38, be equipped with second mud automatic valve 39 of arranging on second mud pipe 38, MCR produces water pump 23, produce water automatic valve 22, MCR backwash pump 31, backwash automatic valve 37, second mud automatic valve 39 of arranging, second level gauge 19, third level gauge 28 is connected to PLC control system respectively, in order to realize that MCR produces water, the automated control of backwash.

The second liquid level meter 19 is used for controlling the start and stop of the MCR water production pump 23, when the MCR membrane pool 17 is at a low liquid level, the MCR water production pump 23 and the water production automatic valve 22 are closed, when the MCR membrane pool 17 is at a medium liquid level, the MCR water production pump 23 and the water production automatic valve 22 are opened, and when the MCR membrane pool 17 is at a high liquid level, the water inlet pump 3 is closed.

The third liquid level meter 28 is used for controlling the water inflow of the MCR backwashing and activated carbon treatment system, the MCR backwashing pump 31 and the activated carbon water feeding pump 44 are stopped when the MCR water production tank 27 is at a low liquid level, and the MCR backwashing pump 31 and the activated carbon water feeding pump 44 can be started when the MCR water production tank 27 is at a medium liquid level.

The active carbon treatment system comprises an active carbon tower 49, the water inlet of the active carbon tower 49 is connected to the MCR water production pool 27 through an active carbon water inlet pipe 42, and a first active carbon water inlet valve 43, an active carbon water feeding pump 44, an active carbon check valve 45, an active carbon water inlet pressure gauge 46, a second active carbon water inlet valve 47 and an active carbon water inlet flow meter 48 are sequentially arranged on the active carbon water inlet pipe 42 along the water flow direction.

A water production port of the activated carbon tower 49 is connected to a reuse water pool 52 through an activated carbon water production pipe 50, and an activated carbon water production flow meter 51 is arranged on the activated carbon water production pipe 50; the reuse water tank 52 is connected to a backwashing port of the activated carbon tower 49 through an activated carbon backwashing pipe 54, and the activated carbon backwashing pipe 54 is sequentially provided with a first activated carbon backwashing valve 55, an activated carbon backwashing pump 56, an activated carbon backwashing check valve 57, an activated carbon backwashing pressure gauge 58, a second activated carbon backwashing valve 59 and an activated carbon backwashing flow meter 60 along the water flow direction.

A backwashing water outlet of the activated carbon tower 49 is connected to a sludge treatment system through a backwashing water discharge pipeline, the bottom of the activated carbon tower 49 is connected to the regulating tank 1 through a third vent pipe 61, and a third vent valve 62 is arranged on the third vent pipe 61; the fourth liquid level meter 53 is arranged in the reuse water tank 52, the activated carbon water feeding pump 44, the activated carbon backwashing pump 56 and the fourth liquid level meter 53 are respectively connected to the PLC control system, the activated carbon tower 49 is in the prior art, an automatic valve group for water feeding, water production, backwashing and backwashing drainage is arranged in the activated carbon tower 49, the automatic valve group is connected with the PLC control system to realize the operation modes of activated carbon filtration, positive flushing, backwashing, drainage and the like, the fourth liquid level meter 53 is used for controlling the backwashing of the activated carbon tower 49 and the starting and stopping of the reuse system, when the reuse water tank 52 is at a low liquid level, the activated carbon backwashing pump 56 and the reuse water pump 67 are closed, and when the reuse water tank 52 is at a medium liquid level, the activated carbon backwashing pump 56 and the reuse water pump.

In this example, the recycling system includes two workshop water collecting tanks 73 arranged in parallel, the workshop water collecting tanks 73 are connected to the recycling water tank 52 through recycling pipes 65, a first recycling valve 66, a recycling water pump 67, a recycling check valve 68, a recycling pressure gauge 69, a second recycling valve 70, a recycling flow meter 71 and a first recycling automatic valve 72 are sequentially arranged on the recycling pipes 65 along the water flow direction, the two recycling pipes 65 arranged in parallel are connected through a recycling branch pipe 91, the recycling branch pipe 91 is provided with a second recycling automatic valve 92, a fifth liquid level meter 74 is arranged in the workshop water collecting tank 73, the recycling water pump 67, the first recycling automatic valve 72, the second recycling automatic valve 92 and the fifth liquid level meter 74 are respectively connected to the PLC control system for realizing the automatic control of the recycling system, when the workshop water collecting tanks 73 are at a low liquid level, the recycling water pump 67 is started, when the workshop water collecting tanks 73 are at a high liquid level, the reuse water pump 67 is turned off, and when the reuse water pump 67 on one of the parallel reuse pipes 65 fails, the second reuse automatic valve 92 is turned on to supply water to both of the workshop sumps 73.

The sludge treatment system comprises a sludge tank 77, a sludge-water separator 78 and a third dosing device 79 for dosing a coagulant aid, the bottom of the sludge tank 77 is connected to the sludge-water separator 78 through a sludge concentration pipe 80, a third sludge discharge automatic valve 81, a sludge discharge valve 82 and a sludge flowmeter 83 are sequentially arranged on the sludge concentration pipe 80 along the sludge discharge direction, and the third sludge discharge automatic valve 81 is connected with the PLC control system; the mud-water separator 78 is connected to the adjusting tank 1 through a filtrate discharge pipe 93, the filtrate separated by the mud-water separator 79 is conveyed to the adjusting tank 1 for sewage treatment, and the separated sludge is transported to the outside for disposal; the third dosing device 79 is connected to the sludge-water separator 78 through a sludge dosing pipe 84, and the third dosing device 79 is connected to the aeration fan 90 through a third dosing aeration pipe 85.

The reuse pipe 65 is connected to a sludge-water separator 79 through a flushing pipe 75, a flushing valve 76 is provided on the flushing pipe 75, and the sludge-water separator 79 is flushed with the water of the reuse water tank 52.

In this example, the first sludge discharge pipe 15, the second sludge discharge pipe 38 and the backwashing water port of the activated carbon tower 49 are connected to the sludge tank 77 through a sludge discharge header pipe 86, a sludge discharge header valve 87 is arranged on the sludge discharge header pipe 86, the first vent pipe 40, the second vent pipe 63, the third vent pipe 61, the first sludge discharge pipe 15, the second sludge discharge pipe 38 and the backwashing water port of the activated carbon tower 49 are connected to the regulating tank 1 through a total vent pipe 88, the total vent pipe 88 is provided with a total vent valve 89, and the effluent of the first vent pipe 40, the second vent pipe 63 and the third vent pipe 61 is completely discharged to the regulating tank 1, so that the effluent can be discharged to the regulating tank 1 when the sedimentation tank 8, the MCR membrane tank 17 and the activated carbon tower 49 need to be overhauled.

The utility model discloses a theory of operation does: the paint spraying wastewater and the polishing wastewater are discharged into an adjusting tank 1, and the water quantity and the water quality are adjusted in the adjusting tank 1; the water inlet pump 3 conveys wastewater in the adjusting tank 1 to the sedimentation tank 8 through the water inlet pipe 2, the first dosing device 9 adds alkali liquor to the wastewater to maintain the pH value of the wastewater at 9-11 and provide good conditions for subsequent flocculation, the second dosing device 10 adds flocculating agent to the wastewater with the addition amount of 100ppm, the wastewater reacts with the flocculating agent, the wastewater is mixed by the two pipeline mixers 7 and then enters the sedimentation tank 8, sludge is settled into a sludge hopper at the bottom of the tank through the action of gravity and enters the sludge tank 77 through the first sludge discharge pipe 15, and clear water overflows to the MCR membrane tank 17. Through the filtration of the MCR membrane, the sewage is pumped by the MCR water producing pump 23 and is conveyed to the MCR water producing tank 27. The water in the MCR water producing pool 27 can be used as the inlet water of the activated carbon tower 49 and can also be used as the back washing water of the MCR membrane box 18, and the MCR back washing pump 31 can realize the back washing of the MCR membrane box 18 regularly under the control of the automatic control program. After MCR produced water is adsorbed by active carbon, the effluent can reach the standard and be discharged and can be used for recycling. The effluent enters a reuse water pool 52 for storage, and is conveyed to a production room or other places needing water through a reuse water pump 67, and the reuse water can also be used as backwashing water of the activated carbon tower 49. The sedimentation tank 8, the MCR membrane tank 17, the MCR water production tank 27, the activated carbon tower 49 and the like are communicated with a sludge tank 77 through pipelines, when sludge needs to be discharged or emptied, waste water, sludge and the like are discharged into the sludge tank 77, and the sludge is concentrated in the tank body. The operation of the mud-water separator 78 is linked with the third chemical adding device 79 and the third sludge discharge automatic valve 81, when the mud-water separator 78 starts to operate, the third sludge discharge automatic valve 81 is started, the third chemical adding device 79 is started to add coagulant aid into the sludge, the sludge is conveyed to the mud-water separator 79 through the sludge concentration pipe 80 to be subjected to filter pressing, the dry sludge is subjected to outsourcing treatment, and the filtrate can flow back to the regulating tank 1.

The above examples are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable one skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a transformer waste water's processing and recycling system which characterized in that: the system comprises a water inlet system, a pretreatment system, an MCR system, an activated carbon treatment system, a recycling system and a sludge treatment system, wherein the pretreatment system, the MCR system and the activated carbon treatment system are respectively connected to the sludge treatment system, and inlet water of the water inlet system enters the recycling system for recycling after being treated by the pretreatment system, the MCR system and the activated carbon treatment system in sequence.

2. The transformer production wastewater treatment and recycling system according to claim 1, wherein: the water inlet system comprises a regulating reservoir, the regulating reservoir is connected to the pretreatment system through a water inlet pipe, a water inlet pump, a water inlet check valve, a water inlet valve and a water inlet flow meter are sequentially arranged on the water inlet pipe along the water inlet direction, a first liquid level meter is arranged in the regulating reservoir, and the first liquid level meter and the water inlet pump are respectively connected to the PLC control system.

3. The transformer production wastewater treatment and recycling system according to claim 2, wherein: the pretreatment system comprises a sedimentation tank, a first dosing device for adding alkali liquor and a second dosing device for adding flocculating agent, wherein the first dosing device and the second dosing device are respectively connected to the water inlet pipe through dosing pipes, and are respectively connected to an aeration fan through a first dosing aeration pipe and a second dosing aeration pipe; the inlet tube is connected to the sedimentation tank, be equipped with two pipeline mixers on the inlet tube and be used for mixing the influent water and adding the medicament, the sedimentation tank bottom is connected to through first mud pipe, be equipped with first mud automatic valve on the first mud pipe, first mud automatic valve is connected to PLC control system.

4. The transformer production wastewater treatment and recycling system according to claim 3, wherein: the MCR system comprises an MCR membrane pool, an MCR membrane box and an MCR water production pool, wherein the MCR membrane box is arranged in the MCR membrane pool, the MCR membrane box is connected to an aeration fan through an MCR aeration pipe, and the MCR membrane box is connected to the MCR water production pool through an MCR water production pipe;

5. The transformer production wastewater treatment and recycling system according to claim 4, wherein: the active carbon treatment system comprises an active carbon tower, a water inlet of the active carbon tower is connected to the MCR water production tank through an active carbon water inlet pipe, and a first active carbon water inlet valve, an active carbon water feeding pump, an active carbon check valve, an active carbon water inlet pressure gauge, a second active carbon water inlet valve and an active carbon water inlet flow meter are sequentially arranged on the active carbon water inlet pipe along the water flow direction;

6. The transformer production wastewater treatment and recycling system according to claim 5, wherein: recycling system includes at least one workshop catch basin, the workshop catch basin is connected to through the retrieval and utilization pipeline the retrieval and utilization pond, along the rivers direction on the retrieval and utilization pipeline be equipped with first retrieval and utilization valve, retrieval and utilization water pump, retrieval and utilization check valve, retrieval and utilization manometer, second retrieval and utilization valve, retrieval and utilization flowmeter and first retrieval and utilization automatic valve in proper order, through retrieval and utilization branch connection between the retrieval and utilization pipeline of parallelly connected setting, be equipped with second retrieval and utilization automatic valve on the retrieval and utilization branch pipe, be equipped with the fifth level gauge in the workshop catch basin, retrieval and utilization water pump, first retrieval and utilization automatic valve, second retrieval and utilization automatic valve, fifth level gauge do not are connected to PLC control system.

7. The transformer production wastewater treatment and recycling system according to claim 6, wherein: the sludge treatment system comprises a sludge tank, a sludge-water separator and a third dosing device, wherein the bottom of the sludge tank is connected to the sludge-water separator through a sludge concentration pipe, and a third sludge discharge automatic valve, a sludge discharge valve and a sludge flowmeter are sequentially arranged on the sludge concentration pipe along the sludge outlet direction; the mud-water separator is connected to the regulating tank through a filtrate discharge pipe; the third dosing device is connected to the mud-water separator through a sludge dosing pipe, and the third dosing device is connected to the aeration fan through a third dosing aeration pipe.

8. The transformer production wastewater treatment and recycling system according to claim 7, wherein: the recycling pipeline is connected to the mud-water separator through a flushing pipe, and a flushing valve is arranged on the flushing pipe.