The coal chemical industrial waste water treatment system
Technical field
The utility model relates to water treatment device, relates in particular to a kind of coal chemical industrial waste water treatment system.
Background technology
China is a coal big country, and a lot of industrial chemicals are also taken from coal.Coal Chemical Industry is an important step of coal deep processing, but Coal Chemical Industry often produces a large amount of coal chemical industrial waste waters, contains hazardous and noxious substances such as a large amount of phenols, alkanes, arene, heterocyclic, ammonia nitrogen and cyanogen in this waste water.The bottleneck of restriction China Coal Chemical Industry industry development is not only in the processing of coal chemical industrial waste water, also is a great problem that domestic and international Coal Chemical Industry industry faces jointly.
Summary of the invention
Be the difficult defective of processing that overcomes coal chemical industrial waste water, the purpose of the utility model is to provide a kind of coal chemical industrial waste water treatment system that can effectively handle coal chemical industrial waste water.
The purpose of the utility model realizes through following technical measures, and a kind of coal chemical industrial waste water treatment system comprises that a coal chemical industrial waste water is collected and body refuse press filtration unit, a filtering separation unit and a reuse water are collected and the back flushing unit; Wherein
Said coal chemical industrial waste water is collected and body refuse press filtration unit; Comprise coal chemical industrial waste water pond, wastewater collection settling tank and pressure filter; Middle part, said coal chemical industrial waste water pond is provided with a wastewater discharge pipe; Said wastewater discharge pipe connects the unitary sewage tail pipe of filtering separation through a waste water pump, and the inlet tube of said wastewater collection settling tank is taken over the blow-off pipe of filter separating unit, and the inlet tube of said wastewater collection settling tank connects the liquid discharge pipe of pressure filter simultaneously; The supernatant place, top of said wastewater collection settling tank connects the coal chemical industrial waste water pond, and the bottom of said coal chemical industrial waste water pond and wastewater collection settling tank connects the inlet of pressure filter through a mud pump line;
Said filtering separation unit comprises tubular membrane water treatment unit; The sewage tail pipe pipe of this tubular membrane water treatment unit connects the coal chemical industrial waste water pond; The blow-off pipe pipe of this tubular membrane water treatment unit connects the inlet of wastewater collection settling tank, and the water shoot pipe of this tubular membrane water treatment unit connects clean water basin;
Said reuse water is collected and the back flushing unit comprises clean water basin and chemical pond; The inlet of said clean water basin is handled the water shoot of unit through valve pipe take-over type film water; The outlet of said clean water basin is connected with a TFL; The outlet of said clean water basin also connects the water shoot that the tubular type film water is handled unit through backwash tube, is connected with a recoil pump and a recoil valve on the said backwash tube, also passes through a liquid medicine pipe coupling chemical pond on the said backwash tube.
As a kind of optimal way, said tubular membrane water treatment unit comprises a plurality of parallel connections or placed in-line tubular membrane.
As a kind of optimal way, be connected with a water pump on the said TFL.
As a kind of optimal way, said liquid medicine pipe connects chemical pond through a liquid medicine pump.
During processing; Earlier coal chemical industrial waste water is sucked the coal chemical industrial waste water pond, in the coal chemical industrial waste water pond, precipitate, the liquid at last middle part pumps through the wastewater discharge pipe of waste water pump by middle part, coal chemical industrial waste water pond; Pump is to the sewage tail pipe of tubular membrane water treatment unit; Under the situation of pressurization, the coal chemical industrial waste water tubular type film water of flowing through is handled parallel connection or placed in-line tubular membrane inner chamber in the unit, when in tubular membrane, flowing through; Water and small-molecule substance ooze out and are collected by water shoot from the membranous wall of tubular membrane and enter clean water basin; Effusive sewage imports the wastewater collection settling tank by blow-off pipe and precipitates from the tubular membrane chamber, and when the liquid in the wastewater collection settling tank surpassed the partition wall with the coal chemical industrial waste water pond, liquid flowed into the coal chemical industrial waste water pond and handles once more; The solid of coal chemical industrial waste water pond and wastewater collection settling tank pumps in the pressure filter through a sludge pump through their bottom openings, carries out press filtration, the solid waste landfill disposal of wherein discharging, and liquid is expelled in the wastewater collection settling tank; The clear water of clean water basin can pass through the recycling of TFL pump to workshop; Behind tubular membrane water treatment unit work certain hour; Reuse water is collected and the back flushing unit cleans tubular membrane water treatment unit; Clear water pumps into water shoot by recoil pump, and clear water adds to depress from water shoot at recoil pump and passes back into tubular membrane water treatment unit, and infiltrates from the tube wall of tubular membrane; Discharge from the sewage tail pipe and the blow-off pipe of tubular membrane water treatment unit, the small-particle that counterflush will be attached on the film when flowing through the tube wall of tubular membrane is taken out of.When needs when when recoil adds liquid medicine, the liquid medicine pump work in the chemical pond also pumps into the liquid medicine pipe with liquid medicine and with clear water tubular membrane water treatment unit is cleaned.
The utility model can effectively be handled coal chemical industrial waste water, and the turbidity of handling the back effluent quality is below 5NTU, and the visual perception is near the clarity of tap water.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is done further explain.
Like Fig. 1, a kind of coal chemical industrial waste water treatment system comprises that a coal chemical industrial waste water is collected and body refuse press filtration unit 100, a filtering separation unit 200 and a reuse water are collected and back flushing unit 300; Wherein
Said coal chemical industrial waste water is collected and body refuse press filtration unit 100; Comprise coal chemical industrial waste water pond 17, wastewater collection settling tank 18 and pressure filter 23; 17 middle parts, said coal chemical industrial waste water pond are provided with a wastewater discharge pipe 16; Said wastewater discharge pipe 16 connected the sewage tail pipe 2 of tubular membrane water treatment unit 5 through a waste water pump 15; The inlet of said wastewater collection settling tank 18 is handled the blow-off pipe 1 of unit 5 through valve 3 pipe take-over type film waters; The inlet tube of the settling tank of wastewater collection simultaneously 18 connects the liquid returning tube 21 of pressure filter 23, and the supernatant place, top of said wastewater collection settling tank 18 connects coal chemical industrial waste water pond 17, and the bottom of said coal chemical industrial waste water pond 17 and wastewater collection settling tank 17 connects the inlet of pressure filter 23 through sludge pipe 19 pipes of a band sludge pump 20;
Filtering separation unit 200 comprises the tubular membrane water treatment unit 5 that the tubular membrane 6 of a plurality of parallel connections is formed, and water shoot 7 pipes of this tubular membrane water treatment unit 5 connect clean water basin 14, and water shoot 7 is also through valve 4 reversal connection blow-off pipes 1;
Reuse water is collected and back flushing unit 300 comprises clean water basin 14 and chemical pond 11; The inlet of said clean water basin 14 is handled the water shoot 7 of unit 5 through valve 8 pipe take-over type film waters; The outlet pipe 26 of said clean water basin 14 connects TFL 24 through water pump 25; The outlet of said clean water basin 14 also connects the water shoot 7 that the tubular type film water is handled unit 5 through backwash tube 13; Be connected with a recoil pump 27 and a recoil valve 28 on the backwash tube 13, also through the liquid medicine pipe 10 connection chemical pond 11 of a band liquid medicine pump 12, liquid medicine pipe 10 is provided with liquid medicine valve 9 on the said backwash tube 13.
During processing; Earlier coal chemical industrial waste water is sucked coal chemical industrial waste water pond 17, in coal chemical industrial waste water pond 17, precipitate, the liquid at last middle part pumps through the wastewater discharge pipe 16 of waste water pump 15 by 17 middle parts, coal chemical industrial waste water pond; Pump is to the sewage tail pipe 2 of tubular membrane water treatment unit 5; Under the situation of pressurization, the coal chemical industrial waste water tubular type film water of flowing through is handled tubular membrane 6 inner chambers of parallel connection in the unit 5, when in tubular membrane 6, flowing through; Water and small-molecule substance ooze out and are collected by water shoot 7 from the membranous wall of tubular membrane 6 and enter clean water basin 14; Effusive sewage imports wastewater collection settling tank 18 by blow-off pipe 1 and precipitates from tubular membrane 6 chambeies, and when the liquid wastewater collection settling tank 18 in surpassed the partition wall with coal chemical industrial waste water pond 17, handled once more in liquid inflow coal chemical industrial waste water pond 17; The solid of coal chemical industrial waste water pond 17 and wastewater collection settling tank 18 pumps in the pressure filter 23 through a sludge pump 20 from their bottom openings; Carry out press filtration; The solid waste of wherein discharging is discharged landfill disposal through vent pipe 22, and liquid is expelled in the wastewater collection settling tank 18 through liquid returning tube 21; The clear water of clean water basin 14 can pass through the recycling to the workshop of TFL 24 pumps; Behind tubular membrane water treatment unit 5 work certain hours; Reuse water is collected and the 300 pairs of tubular membrane water treatments in back flushing unit unit 5 cleans; Clear water pumps into water shoot 7 by recoil pump 27, and clear water adds to depress from water shoot 7 at recoil pump 27 and passes back into tubular membrane water treatment unit 5, and infiltrates from the tube wall of tubular membrane 6; Discharge with blow-off pipe 1 from the sewage tail pipe 2 of tubular membrane water treatment unit 5, the small-particle that counterflush will be attached on the film when flowing through the tube wall of tubular membrane 5 is taken out of.When needs added liquid medicine when recoiling, the liquid medicine pump 12 in the chemical pond 11 was worked and liquid medicine is pumped into liquid medicine pipe 10 and with clear water tubular membrane water treatment unit 5 cleaned.
This coal chemical industrial waste water treatment system can effectively be handled coal chemical industrial waste water, and the turbidity of handling the back effluent quality is below 5NTU.
More than be that the utility model coal chemical industrial waste water treatment system is set forth; Be used for helping to understand the utility model; But the embodiment of the utility model is not restricted to the described embodiments; Anyly do not deviate from the change done under the utility model principle, modification, substitute, combination, simplify, all should be the substitute mode of equivalence, be included within the protection domain of the utility model.