CN214528603U - Wire drawing waste liquid treatment system - Google Patents
Wire drawing waste liquid treatment system Download PDFInfo
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- CN214528603U CN214528603U CN202120344125.1U CN202120344125U CN214528603U CN 214528603 U CN214528603 U CN 214528603U CN 202120344125 U CN202120344125 U CN 202120344125U CN 214528603 U CN214528603 U CN 214528603U
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Abstract
The utility model belongs to the technical field of industrial wastewater treatment. A wire drawing waste liquid treatment system comprises a waste liquid collecting tank, an oil removal reaction kettle, a sludge concentration dehydration device, a copper removal reaction kettle, a plate-and-frame filter press and a biological treatment device which are sequentially connected through a pipeline, wherein the biological treatment device sequentially comprises an anaerobic tank, an aerobic tank and an MBR (membrane bioreactor) from a treatment starting end; the processing system further comprises a plurality of storage tanks; the storage tank comprises a demulsifier storage tank, a polyaluminium chloride storage tank, a sodium sulfide storage tank, a sulfuric acid storage tank, a hydrogen peroxide storage tank, a ferrous sulfate storage tank, a plurality of liquid caustic soda storage tanks and a plurality of Polyacrylamide (PAM) storage tanks. The utility model has the advantages of reasonable and compact structure, small occupied area and low capital construction cost; the automation degree is high, the operation is stable and reliable, and the operation is simple; the sewage treatment capacity is large, the treatment capacity is 500kg/d, the treatment period is short, and the energy consumption is low.
Description
Technical Field
The utility model belongs to the technical field of industrial wastewater treatment, concretely relates to wire drawing waste liquid treatment system.
Background
The wire drawing liquid comprises the main components of oil, water and various chemical additives, is widely applied to the field of wires and cables, and plays roles in lubrication, cooling, cleaning, rust prevention and the like in a metal wire drawing process. The copper wire drawing waste liquid contains a large amount of organic mineral oil, surfactant and inorganic pollutants, and the direct discharge has great pollution to the environment. The surface activity contained in the copper wire drawing waste liquid can promote the high dispersion of the oil, the oil is difficult to remove, and the treatment difficulty of the copper wire drawing waste liquid is high.
At present, the treatment of the copper wire drawing waste liquid mainly comprises two steps of demulsification and water quality purification. Common methods include salting out, flocculation, membrane separation, adsorption, etc. The salting-out method has large dosage, low coagulation speed, large occupied area of equipment and poor treatment effect on the wire drawing waste liquid by the surfactant, and generally only serves as a primary treatment means because the settling separation generally takes more than 24 hours. The flocculation method is a widely used method at present, and has the advantages of high treatment speed and high efficiency compared with the salting-out method, but the agent cost is high, the oil-containing sludge generation amount is large, and the subsequent sludge dehydration and treatment problems are caused. The adsorbent in the adsorption method has limited adsorption capacity, higher cost and difficult regeneration, so the adsorbent is generally only used for the advanced treatment of waste liquid. The existing copper wire drawing waste liquid treatment technology has low oil removal efficiency, complex treatment method and high cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a wire drawing waste liquid treatment system which has reasonable and compact structure, small occupied area and low capital construction cost; the automation degree is high, the operation is stable and reliable, and the operation is simple; the sewage treatment capacity is large, the treatment capacity is 500kg/d, the treatment period is short, and the energy consumption is low.
The technical scheme of the utility model as follows:
a wire drawing waste liquid treatment system comprises a waste liquid collecting tank, an oil removal reaction kettle, a sludge concentration dehydration device, a copper removal reaction kettle, a plate-and-frame filter press and a biological treatment device which are sequentially connected through a pipeline, wherein the biological treatment device sequentially comprises an anaerobic tank, an aerobic tank and an MBR (membrane bioreactor) from a treatment starting end;
the processing system further comprises a plurality of storage tanks;
the storage tanks comprise a demulsifier storage tank, a polyaluminium chloride (PAC) storage tank, a sodium sulfide storage tank, a sulfuric acid storage tank, a hydrogen peroxide storage tank, a ferrous sulfate storage tank, a plurality of liquid caustic soda storage tanks and a plurality of Polyacrylamide (PAM) storage tanks;
the demulsifier storage tank, the liquid caustic soda storage tank and the polyaluminium chloride storage tank are connected with an inlet of the oil removal reaction kettle through a metering pump;
the polyacrylamide storage tank is connected with an inlet of the sludge concentration and dehydration device through a metering pump;
the sodium sulfide storage tank, the sulfuric acid storage tank, the liquid caustic soda storage tank, the hydrogen peroxide storage tank, the ferrous sulfate storage tank and the polyacrylamide storage tank are respectively connected with the inlet of the decoppering reaction kettle through metering pumps.
Furthermore, the waste liquid collecting pool comprises a plurality of sub-collecting pools, the sub-collecting pools are connected through a connecting pipeline according to the principle of a communicating vessel, the sub-collecting pools are guaranteed to have the same liquid level height, and the stable and reliable operation of an automatic system is guaranteed when the amount of waste liquid is large. The installation is convenient, the occupied area is small, the installation number of the sub-collecting tanks can be flexibly adjusted according to the actual sewage treatment capacity, and the device can adapt to different application scenes and installation sites.
Furthermore, the sub-collecting pool is a nodal cylinder, and the waste liquid collecting amount can be judged according to the capacity of each cavity of the sub-collecting pool, so that the waste liquid amount can be conveniently evaluated.
Further, the waste liquid collecting tank inner wall is equipped with liquid level sensing device, the deoiling reation kettle is equipped with weight inductor device, the waste liquid collecting tank through the measuring pump with the deoiling reation kettle links to each other, measuring pump, liquid level sensing device and weight sensing device access automatic control system.
Further, the sludge concentration and dehydration device comprises a flocculation mixing tank, an electric control cabinet, a stacked screw type sludge dehydrator and a sedimentation tank; the flocculation mixing tank is arranged on the sedimentation tank and is connected with the polyacrylamide storage tank; the flocculation mixing tank is electrically connected with the electric control cabinet; the stacked screw type sludge dewatering machine is obliquely arranged on the sedimentation tank, and the lower end of the stacked screw type sludge dewatering machine is connected with the flocculation mixing tank through a pipeline; fold spiral shell formula sludge dewaterer lower part and be equipped with hourglass hopper-shaped filtrating accumulator, filtrating accumulator high-order end is equipped with the sludge discharge port, filtrating accumulator low-order end bottom is equipped with the filtrating discharge port, the filtrating discharge port with the water inlet of sedimentation tank links to each other.
The sludge concentration and dehydration device is integrated by a flocculation mixing tank, a stacked screw type sludge dehydrator and a sedimentation tank, and has small floor area and low capital construction cost. The flocculation mixing tank is electrically connected with the electric control cabinet, the automation degree is high, sludge flocculation, concentration, squeezing dehydration, sludge discharge and sewage discharge are all carried out under full-automatic conditions, the treatment efficiency is high, and the treatment capacity is large. The filtrate recovery tank is arranged below the stacked spiral sludge dewatering machine, filtrate can be directly discharged to the recovery tank, additional pipelines and mechanical preparation are not needed, high mud-water separation efficiency can be guaranteed, the capital construction cost is low, and the energy consumption is low.
Further, the inner wall of the sedimentation tank is provided with a liquid level sensing device, the inner wall of the copper removal reaction kettle is provided with a weight sensor device, the sedimentation tank is connected with the copper removal reaction kettle through a metering pump, and the metering pump, the liquid level sensing device and the weight sensing device are connected into an automatic control system, such as a PLC system.
Can realize the automatic control to waste liquid level in the sedimentation tank and remove among the copper reation kettle waste liquid weight, liquid level induction system detects sedimentation tank waste liquid level and is higher than the setting value, with the automatic control measuring pump waste liquid extraction to removing the copper reation kettle in with the sedimentation tank in, the weight inductor device detects the waste liquid high quality in removing the copper reation kettle and is higher than the setting value, stops the waste liquid extraction with the automatic control measuring pump, realizes the sedimentation tank and removes the waste liquid control among the copper reation kettle.
Furthermore, the plate-and-frame filter press comprises a filter plate, a filter frame, filter cloth and a pressing device, the filter plate and the filter frame are arranged at intervals, the filter cloth is arranged on two sides of the filter plate, the filter plate and the filter frame are communicated with the pressing device to be pressed, a filter pressing chamber is formed between the filter plate and the filter frame, through holes are formed in the same positions of the filter plate and the filter frame, and the through holes are communicated with the filter pressing chamber.
The wastewater can enter the filter-pressing chamber through the through holes, and is discharged out of the filter machine through the filter cloth, the ditch groove and the pore channel under the pressure effect, so that the sludge is dehydrated. The plate-and-frame filter press has the advantages of simple structure, easy operation, stable operation and high dehydration efficiency.
Further, a sludge tank is connected between the copper removal reaction kettle and the plate-and-frame filter press.
Furthermore, aeration systems are arranged at the bottoms of the oil removal reaction kettle, the sludge tank, the anaerobic tank and the aerobic tank, each aeration system comprises an oxygen supply device, the oxygen supply devices are respectively arranged at the tops of the oil removal reaction kettle, the sludge tank, the anaerobic tank and the aerobic tank, and the oxygen supply devices are roots blowers.
The aeration system that deoiling reation kettle was equipped with can produce a large amount of bubbles in waste water, and mineral oil fat is attached to the bubble surface, and aeration system locates the reation kettle bottom, and the grease of adhesion on the bubble can be in waste water with the fully contact of reactant, shorten reaction time, improve deoiling reaction efficiency, effectively avoided polluting the deoiling reaction inadequately that dirty partial deposit of part leads to.
Further, a PH meter is arranged on the oil removal reaction kettle and the copper removal reaction kettle, and the PH meter, the metering pump connected with the liquid caustic soda storage tank and the metering pump connected with the sulfuric acid storage tank are connected into an automatic control system, such as a PLC system.
The automatic control of the PH value of the waste liquid in the oil removal reaction kettle and the copper removal reaction kettle can be realized, when the PH value of the waste liquid detected by a PH meter is higher than a set value, the metering pump connected with a sulfuric acid storage tank is automatically controlled, sulfuric acid is added into the copper removal reaction kettle, and when the PH value of the waste liquid detected by the PH meter is within a set value range, the acid addition is stopped; and when the pH meter detects that the pH value of the waste liquid is lower than a set value, the metering pump connected with the liquid caustic soda storage tank is automatically controlled, liquid caustic soda is added into the copper removal reaction kettle or the oil removal reaction kettle, and when the pH meter detects that the pH value of the waste liquid is within the range of the set value, the addition of alkali is stopped, so that the automatic control of the pH value of the waste liquid in the copper removal reaction kettle or the oil removal reaction kettle is realized.
The utility model discloses following beneficial effect has:
the wire drawing waste liquid treatment system has reasonable and compact structure, small occupied area and low capital construction cost; the automation degree is high, the operation is stable and reliable, and the operation is simple; the sewage treatment capacity is large, the treatment capacity is 500kg/d, the treatment period is short, and the energy consumption is low. The treatment system combines a demulsification method, a flocculation method, a biological method and a mechanical method to treat the wire drawing wastewater, can effectively remove pollutants such as metallic copper, mineral oil and the like in the wastewater, and the wastewater after treatment meets the sewage discharge standard and can be diluted and recycled.
Drawings
FIG. 1 is a schematic structural view of a wire drawing waste liquid treatment system of the present invention;
FIG. 2 is a schematic structural view of a waste liquid collecting tank in the wire drawing waste liquid treatment system of the present invention;
FIG. 3 is a schematic structural view of a sludge thickening and dewatering device in the wire drawing waste liquid treatment system of the present invention;
1. a waste liquid collecting tank, 11 liquid level sensing devices, 12 weight sensor devices, 13 metering pumps, 14 sub-collecting tanks, 15 pipelines, 2 oil removal reaction kettles, 21 PH meters, 3 sludge concentration and dehydration devices, 31 flocculation mixing tanks, 32 stacked spiral sludge dewaterers, 33 sedimentation tanks, 34 filtrate recovery tanks, 35 sludge discharge ports, 36 filtrate discharge ports, 37 electric control cabinets, 4 decoppering reaction kettles, 5. the system comprises a sludge tank, a 51-aeration system, a 52-oxygen supply device, a 6-plate and frame filter press, a 7-biological treatment device, a 71-anaerobic tank, a 72-aerobic tank, an 73. -MBR (Membrane bioreactor), an 8-storage tank, an 81-demulsifier storage tank, an 82-polyaluminum chloride storage tank, an 83-sodium sulfide storage tank, an 84-sulfuric acid storage tank, an 85-hydrogen peroxide storage tank, an 86-ferrous sulfate storage tank, an 87-liquid alkali storage tank and an 88-polyacrylamide storage tank.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.
A wire drawing waste liquid treatment system is shown in figures 1-3 and comprises a waste liquid collecting tank 1, an oil removal reaction kettle 2, a sludge concentration dehydration device 3, a copper removal reaction kettle 4, a sludge tank 5, a plate-and-frame filter press 6 and a biological treatment device 7 which are sequentially connected through pipelines; the biological treatment device comprises an anaerobic tank 71, an aerobic tank 72 and an MBR (membrane bioreactor) 73 from the treatment starting end in sequence;
the treatment system further comprises a plurality of tanks 8;
the storage tank 8 comprises a demulsifier storage tank 81, a polyaluminium chloride (PAC) storage tank 82, a sodium sulfide storage tank 83, a sulfuric acid storage tank 84, a hydrogen peroxide storage tank 85, a ferrous sulfate storage tank 86, a plurality of liquid caustic soda storage tanks 87 and a plurality of Polyacrylamide (PAM) storage tanks 88;
the demulsifier storage tank 81, the liquid caustic soda storage tank 87 and the polyaluminium chloride storage tank 82 are connected with the inlet of the oil removal reaction kettle 2 through a metering pump 13;
the polyacrylamide storage tank 88 is connected with the inlet of the sludge concentration dehydration device 3 through a metering pump 13;
the sodium sulfide storage tank 83, the sulfuric acid storage tank 84, the liquid caustic soda storage tank 87, the hydrogen peroxide storage tank 85, the ferrous sulfate storage tank 86 and the polyacrylamide storage tank 88 are respectively connected with the inlet of the copper removal reaction kettle 4 through a metering pump 13.
The wire drawing waste liquid flows into the waste liquid collecting tank 1 from the inlet, and is pumped to the oil removing reaction kettle 2 after being uniformly stirred in the waste liquid collecting tank 1. Adding water to dilute the waste liquid, adding a demulsifier storage tank 81 and a polyaluminium chloride storage tank 82 into the waste liquid from an inlet of the oil removal reaction kettle 2 through a metering pump 13, and stirring to remove oil; in the stirring process, the liquid caustic soda storage tank 87 is fed from the inlet of the oil removal reaction kettle 2 through the metering pump 13, the PH of the waste liquid is adjusted to be alkaline, a good alkaline environment is provided for oil-water separation reaction, and the high efficiency and the high speed of the reaction are ensured. The waste liquid after deoiling is moved to a sludge concentration and dehydration device 3, a polyacrylamide solution is added into a polyacrylamide storage tank 88 from an inlet of the sludge concentration and dehydration device 3 through a metering pump 13, the sludge is discharged after flocculation, concentration and dehydration, filtrate is pumped into a copper removal reaction kettle 4 and diluted by adding water, hydrogen peroxide and ferrous sulfate solutions are added into a hydrogen peroxide storage tank 85 and a ferrous sulfate storage tank 86 from an inlet of the copper removal reaction kettle 4 through the metering pump 13, stirring and reaction are carried out, in the reaction process, sulfuric acid is added into a sulfuric acid storage tank 84 from an inlet of the copper removal reaction kettle 4 through the metering pump 13, the PH of the filtrate is adjusted to be weakly acidic, liquid alkali is added into a liquid alkali storage tank 87 from an inlet of the copper removal reaction kettle 4 through the metering pump 13 after the reaction is completed, and the PH is adjusted to be weakly alkaline; adding a sodium sulfide solution into a sodium sulfide storage tank 83 from an inlet of the copper removal reaction kettle 4 through a metering pump 13, and after the stirring reaction is completed, adding an acrylamide solution into a polyacrylamide storage tank 88 from an inlet of the copper removal reaction kettle 4 through the metering pump 13 for flocculation; removing copper from the filtrate, and dehydrating and removing impurities by a plate-and-frame filter press 6; the filter-pressed filtrate flows through an anaerobic tank 71, an aerobic tank 72 and an MBR (membrane bioreactor) 73 in the biological treatment device 7 in sequence, and clear water can be discharged or diluted for recycling after organic pollutants are removed.
The waste liquid collecting tank 1 comprises two sub-collecting tanks 14, a connecting pipeline 15 is connected between the two sub-collecting tanks 14 according to the principle of a communicating vessel, and the sub-collecting tanks are nodal-shaped cylinders.
Wherein, 1 inner wall of waste liquid collecting pit is equipped with liquid level sensing device 11, deoiling reation kettle 2 is equipped with weight inductor device 12, waste liquid collecting pit 1 through metering pump 13 with deoiling reation kettle 2 links to each other, metering pump 13, liquid level sensing device 11 and weight sensing device 12 access automatic control system. The liquid level height in the waste liquid collecting pool 1 is higher than a set value, the liquid level sensing device 11 automatically controls the metering pump 13 to pump the waste liquid into the oil removing reaction kettle 2, and when the weight of the waste liquid in the oil removing reaction kettle 2 reaches the set value, the weight sensing device 12 automatically controls the metering pump 13 to stop pumping.
Wherein, the sludge concentration dehydration device 3 comprises a flocculation mixing tank 31, an electric control cabinet 37, a stacked screw type sludge dehydrator 32 and a sedimentation tank 33; the flocculation mixing tank 31 is arranged on the sedimentation tank 33, and the flocculation mixing tank 31 is connected with the polyacrylamide storage tank 88; the flocculation mixing tank 31 is electrically connected with the electric control cabinet 37; the stacked spiral sludge dewatering machine 32 is obliquely arranged on the sedimentation tank 33, and the lower end of the stacked spiral sludge dewatering machine 32 is connected with the flocculation mixing tank 31 through a pipeline; the lower part of the spiral-stacked sludge dewatering machine 32 is provided with a funnel-shaped filtrate recovery tank 34, the high-position end of the filtrate recovery tank 34 is provided with a sludge discharge port 35, the bottom of the low-position end of the filtrate recovery tank 34 is provided with a filtrate discharge port 36, and the filtrate discharge port 36 is connected with a water inlet of the sedimentation tank 33. The wastewater after oil removal flows into the flocculation mixing tank 31, the polyacrylamide storage tank 88 is added with acrylamide solution from the inlet of the flocculation mixing tank 31 through the metering pump 13, pollutants such as sludge in the wastewater are flocculated, the wastewater flows through the spiral sludge dewatering machine 32, the sludge is discharged from the sludge discharge port 35 after being concentrated and dewatered, and the filtrate is discharged into the sedimentation tank 33 from the filtrate discharge port 36 through the recovery tank 34.
Wherein, the inner wall of sedimentation tank 33 is equipped with liquid level induction system 11, it is equipped with weight inductor device 12 to remove 4 inner walls of copper reation kettle, sedimentation tank 33 through metering pump 13 with it links to each other to remove copper reation kettle 4, metering pump 13, liquid level induction system and weight induction system access PLC system. Liquid level sensing device 11 detects that sedimentation tank 33 waste liquid level is higher than the setting value, with automatic control measuring pump 13 with among the sedimentation tank 33 waste liquid extraction to removing copper reation kettle 4, weight inductor device 12 detects that the waste liquid quality is higher than the setting value in removing copper reation kettle 4, stops the waste liquid extraction with automatic control measuring pump 13, realizes the waste liquid control in sedimentation tank 33 and the removal copper reation kettle 4.
The plate-and-frame filter press 6 comprises a filter plate, filter frames, filter cloth and a pressing device, the filter plate and the filter frames are arranged at intervals, the filter cloth is arranged on two sides of the filter plate, the filter plate and the filter frames are communicated with the pressing device to be pressed, filter press chambers are formed between the filter plate and the filter frames, through holes are formed in the same positions of the filter plate and the filter frames, and the through holes are communicated with the filter press chambers. The wastewater can enter the filter-pressing chamber through the through holes, and is discharged out of the filter machine through the filter cloth, the ditch groove and the pore channel under the pressure effect, so that the sludge is dehydrated. The plate-and-frame filter press has the advantages of simple structure, easy operation, stable operation and high dehydration efficiency.
The bottom of the oil removal reaction kettle 2, the bottom of the sludge tank 5, the bottom of the anaerobic tank 71 and the bottom of the aerobic tank 72 are all provided with sludge tanks 51, each sludge tank 51 comprises an oxygen supply device 52, the oxygen supply devices 52 are respectively arranged at the tops of the oil removal reaction kettle 2, the sludge tank 5, the anaerobic tank 71 and the top of the aerobic tank 72, and the oxygen supply devices 52 are roots blowers.
And PH meters 21 are arranged on the oil removal reaction kettle 2 and the copper removal reaction kettle 4, the PH meters 21, the metering pumps 13 connected with the liquid caustic soda storage tank 87 and the metering pumps 13 connected with the sulfuric acid storage tank 84 are connected into a PLC system. When the PH value of the waste liquid is detected to be higher than the set value by the PH meter 21, the metering pump 13 connected with the sulfuric acid storage tank 84 is automatically controlled, sulfuric acid is added into the copper removing reaction kettle 4, and when the PH value of the waste liquid is detected to be within the set value range by the PH meter 21, the acid addition is stopped; the PH meter 21 detects that the PH value of the waste liquid is lower than a set value, the metering pump 13 connected with the liquid caustic soda storage tank 87 is automatically controlled, liquid caustic soda is added into the copper removal reaction kettle 4 or the oil removal reaction kettle 2, the PH meter 21 detects that the PH value of the waste liquid is within the range of the set value, then the alkali addition is stopped, and the automatic control of the PH value of the waste liquid in the copper removal reaction kettle 4 or the oil removal reaction kettle 2 is realized.
The wire drawing waste liquid treatment system has reasonable and compact structure, small occupied area and low capital construction cost; the automation degree is high, the operation is stable and reliable, and the operation is simple; the sewage treatment capacity is large, the treatment period is short, and the energy consumption is low.
Claims (8)
1. A wire drawing waste liquid treatment system is characterized by comprising a waste liquid collecting tank, an oil removing reaction kettle, a sludge concentration and dehydration device, a copper removing reaction kettle, a plate-and-frame filter press and a biological treatment device which are sequentially connected through a pipeline, wherein the biological treatment device sequentially comprises an anaerobic tank, an aerobic tank and an MBR (membrane bioreactor) from a treatment starting end;
the processing system further comprises a plurality of storage tanks;
the storage tanks comprise a demulsifier storage tank, a polyaluminium chloride (PAC) storage tank, a sodium sulfide storage tank, a sulfuric acid storage tank, a hydrogen peroxide storage tank, a ferrous sulfate storage tank, a plurality of liquid caustic soda storage tanks and a plurality of polyacrylamide storage tanks;
the demulsifier storage tank, the liquid caustic soda storage tank and the polyaluminium chloride storage tank are connected with an inlet of the oil removal reaction kettle through a metering pump;
the polyacrylamide storage tank is connected with an inlet of the sludge concentration and dehydration device through a metering pump;
the sodium sulfide storage tank, the sulfuric acid storage tank, the liquid caustic soda storage tank, the hydrogen peroxide storage tank, the ferrous sulfate storage tank and the polyacrylamide storage tank are respectively connected with the inlet of the decoppering reaction kettle through metering pumps.
2. The wiredrawing waste liquid treatment system according to claim 1, wherein the waste liquid collection tank comprises a plurality of sub-collection tanks, and a pipeline is connected between the sub-collection tanks by adopting a communicating vessel principle.
3. The wire drawing waste liquid treatment system according to claim 1, wherein a liquid level sensing device is arranged on the inner wall of the waste liquid collecting pool, a weight sensor device is arranged on the oil removing reaction kettle, the waste liquid collecting pool is connected with the oil removing reaction kettle through a metering pump, and the metering pump, the liquid level sensing device and the weight sensing device are connected into an automatic control system.
4. The wire drawing waste liquid treatment system according to claim 1, wherein the sludge concentration and dehydration device comprises a flocculation mixing tank, an electric control cabinet, a stacked screw type sludge dewatering machine and a sedimentation tank; the flocculation mixing tank is arranged on the sedimentation tank and is connected with the polyacrylamide storage tank; the flocculation mixing tank is electrically connected with the electric control cabinet; the stacked screw type sludge dewatering machine is obliquely arranged on the sedimentation tank, and the lower end of the stacked screw type sludge dewatering machine is connected with the flocculation mixing tank through a pipeline; fold spiral shell formula sludge dewaterer lower part and be equipped with hourglass hopper-shaped filtrating accumulator, filtrating accumulator high-order end is equipped with the sludge discharge port, filtrating accumulator low-order end bottom is equipped with the filtrating discharge port, the filtrating discharge port with the water inlet of sedimentation tank links to each other.
5. The wire drawing waste liquid treatment system according to claim 4, wherein a liquid level sensing device is arranged on the inner wall of the sedimentation tank, a weight sensor device is arranged on the inner wall of the copper removal reaction kettle, the sedimentation tank is connected with the copper removal reaction kettle through a metering pump, and the metering pump, the liquid level sensing device and the weight sensing device are connected into an automatic control system.
6. The wiredrawing waste liquid treatment system according to claim 1, wherein a sludge tank is connected between the copper removal reaction kettle and the plate-and-frame filter press.
7. The wiredrawing waste liquid treatment system according to claim 6, wherein the bottom of the oil removal reaction kettle, the sludge tank, the anaerobic tank and the aerobic tank are provided with aeration systems, each of the aeration systems comprises an oxygen supply device, and the oxygen supply devices are respectively arranged at the top of the oil removal reaction kettle, the sludge tank, the anaerobic tank and the aerobic tank.
8. The wire drawing waste liquid treatment system according to claim 1, wherein pH meters are arranged on the oil removal reaction kettle and the copper removal reaction kettle, and the pH meters, the metering pump connected with the liquid caustic soda storage tank and the metering pump connected with the sulfuric acid storage tank are connected to an automatic control system.
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| CN202120344125.1U CN214528603U (en) | 2021-02-07 | 2021-02-07 | Wire drawing waste liquid treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112707607A (en) * | 2021-02-07 | 2021-04-27 | 惠州德晋昌光电科技有限公司 | Wire drawing waste liquid treatment system and treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112707607A (en) * | 2021-02-07 | 2021-04-27 | 惠州德晋昌光电科技有限公司 | Wire drawing waste liquid treatment system and treatment method |
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