CN214115299U - Chemical sewage treatment system - Google Patents

Abstract

The utility model relates to a chemical wastewater treatment system, including swirler, the coagulating sedimentation tank, a plurality of rose box that disappears, a magnetic separation edulcoration section of thick bamboo, two sets of biochemical treatment mechanism and membrane purifying box, swirler delivery port and coagulating sedimentation tank water inlet intercommunication, rose box water inlet that disappears connects in parallel on the coagulating sedimentation tank water inlet, rose box delivery port that disappears connects in parallel on the inlet pipe of a magnetic separation edulcoration section of thick bamboo, the anaerobic jar water inlet connects in parallel on the discharging pipe of a magnetic separation edulcoration section of thick bamboo, the aerobic jar delivery port connects in parallel on the membrane purifying box water inlet, it has the three-way pipe to be equipped with water quality testing appearance and intercommunication on the membrane purifying box delivery port, two water outlet ports of three-way pipe communicate respectively has return line and water piping, return line tail end intercommunication is on the delivery port of coagulating sedimentation tank. The utility model discloses can carry out oil-water separation, deposit, filtration absorption purification, magnetic separation edulcoration and biochemical treatment in proper order, carry out the two membrane purification again, and realized water quality monitoring and circulation processing, guarantee chemical sewage treatment's efficiency and quality.

Description

Chemical sewage treatment system

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to chemical industry sewage treatment system.

Background

Chemical wastewater is the sewage such as process wastewater, cooling water, waste gas washing water, equipment and place washing water that discharges out in chemical production, and these sewage have the water yield relatively domestic sewage and change characteristics such as big, quality of water is complicated, wherein persist a large amount of oil stains, solid impurity and major diameter organic matter, some still contain more magnetic impurity and ion, if do not pass through the processing and directly discharge, can cause the pollution of different properties and different degree of water, thereby harm human health, influence industrial and agricultural's production.

The treatment of current chemical wastewater adopts two embrane methods more, but when in actual use, often because of excessively depending on the performance of two membrane processes for chemical wastewater just carries out the filtration step of two membranes through simple preliminary treatment, lead to still persisting a large amount of filths in the sewage, easily make two membrane systems blocked up fast, cause two membrane system filtering capability's quick decline, cause serious harm even to two membrane systems, sewage treatment's cost has been improved, chemical wastewater's treatment effeciency and quality have been influenced, await the improvement.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a chemical industry sewage treatment system can carry out effectual oil-water separation, deposit, multistage filtration and absorption purification, magnetic separation edulcoration and biochemical treatment to sewage earlier in proper order, carries out the double membrane purification of reverse osmosis and ultrafiltration again, still can carry out water quality monitoring and circulation and handle to solve above-mentioned problem.

In order to achieve the above object, the utility model adopts the following technical scheme: a chemical sewage treatment system comprises a cyclone, a coagulating sedimentation tank, a plurality of degassing filter boxes, a magnetic separation impurity removal barrel, two groups of biochemical treatment mechanisms and a membrane purification box, wherein each degassing filter box comprises a box body with an open top and a box cover connected through a flange, a partition plate is horizontally arranged in the upper part of the box body, an exhaust chamber is arranged above the partition plate, a filter chamber is arranged below the partition plate, exhaust valves are arranged on the side walls of the box body corresponding to the exhaust chamber, water inlets and water outlets are respectively arranged on the left side wall and the right side wall of the box body corresponding to the filter chamber, a plurality of filter screen plates and a plurality of activated carbon screen plates are arranged in the filter chamber at intervals and detachably, the filter screen plates and the activated carbon screen plates are arranged in a staggered mode, and the aperture of each filter screen plate is gradually decreased from the water inlet to the water outlet of the filter chamber; the magnetic separation impurity removal barrel comprises a barrel body, wherein a feeding pipe is arranged at the top of the barrel body, a plurality of guide plates are arranged at intervals from top to bottom inside the barrel body, a discharging pipe is arranged at the bottom of the barrel body, one end of each guide plate is fixedly arranged on the inner side wall of the barrel body, the other end of each guide plate is obliquely downwards arranged, a gap is reserved between each guide plate and the corresponding inner side wall of the barrel body, the inclination directions of the two adjacent guide plates are opposite, a magnetic shaft is horizontally and rotatably arranged in each discharging pipe, and electromagnet assemblies are arranged inside the magnetic shaft and on the upper portions of the guide plates; the biochemical treatment mechanism comprises an anaerobic tank and an aerobic tank, and a water outlet of the anaerobic tank is communicated with a water inlet of the aerobic tank; the lower part of one side of the membrane purification box is provided with a water inlet, the upper part of the other side of the membrane purification box is provided with a water outlet, and a plurality of reverse osmosis membrane filter elements and a plurality of ultrafiltration membrane filter elements are detachably arranged in the membrane purification box at intervals from the direction of the water inlet to the direction of the water outlet; the bottom delivery port and the coagulating sedimentation tank water inlet intercommunication of swirler, the water inlet of a plurality of gas filter boxes that disappears all connect in parallel on the coagulating sedimentation tank water inlet, and the delivery port of a plurality of gas filter boxes that disappears all connects in parallel on the top inlet pipe of a magnetic separation edulcoration section of thick bamboo, the water inlet of anaerobic jar all connects in parallel on the bottom discharging pipe of a magnetic separation edulcoration section of thick bamboo, the delivery port of aerobic jar all connects in parallel on the water inlet of membrane purifying box, it has the three-way pipe to be equipped with water quality testing appearance and this delivery port intercommunication on the delivery port of membrane purifying box, two water outlet port of three-way pipe communicate respectively has return line and drain line, all be equipped with solenoid valve and return line tail end intercommunication on the delivery port of coagulating sedimentation tank on return line and the drain line.

Preferably, the exhaust chamber is filled with sealing liquid, and one end of the exhaust valve, which is positioned in the exhaust chamber, is connected with a floating ball through a lever.

Preferably, the box front end that the filter chamber corresponds is uncovered and articulated to be equipped with sealing door, all be equipped with the slot on filter screen plate and the baffle bottom that the active carbon otter board corresponds and the box bottom, filter screen plate and active carbon otter board's top bottom both ends peg graft respectively in the slot that corresponds.

Preferably, the bottom of the guide plate is provided with a vibrator.

Preferably, the aperture of the plurality of reverse osmosis membrane filter elements decreases progressively from the water inlet to the water outlet of the membrane purification box, and the aperture of the plurality of ultrafiltration membrane filter elements decreases progressively from the water inlet to the water outlet of the membrane purification box.

Preferably, the front side, the rear side and the bottom of the reverse osmosis membrane filter element and the ultrafiltration membrane filter element are all inserted on the corresponding inner wall of the membrane purification box, the top ends of the reverse osmosis membrane filter element and the ultrafiltration membrane filter element are both provided with a sealing installation seat, and the top of the sealing installation seat extends out of the membrane purification box and is fixedly connected with an installation ring.

Preferably, one end of the return pipeline close to the water outlet of the coagulating sedimentation tank is provided with a one-way valve.

The utility model has the advantages that: the utility model relates to a rationally, moreover, the steam generator is simple in structure, through the swirler, the coagulating sedimentation tank, a plurality of rose boxes that degas, a magnetic separation edulcoration section of thick bamboo, the cooperation that sets up of two sets of biochemical treatment mechanism and membrane purifying box, can realize earlier the oil-water separation to chemical sewage in proper order, deposit, multi-stage filtration and absorption purification, magnetic separation edulcoration and biochemical treatment, the two membrane that carry out reverse osmosis again and ultrafiltration purifies, can reduce the pressure to two membrane purification, alleviate the harm to two membrane clean system, can improve the purification treatment ability to chemical sewage again greatly, guarantee the treatment effeciency and the quality to chemical sewage. Meanwhile, the water quality detector is matched with the return pipeline in arrangement, so that the chemical sewage can be subjected to multi-cycle purification treatment, the cleanliness of finally discharged sewage is ensured, and the environment is protected.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the degassing filter box of the present invention;

FIG. 3 is a schematic structural view of the magnetic separation impurity removal drum of the present invention;

fig. 4 is a schematic structural view of the magnetic shaft of the present invention;

fig. 5 is a schematic structural view of the membrane purification box of the present invention.

Reference numbers in the figures: the device comprises a cyclone 1, a coagulating sedimentation tank 2, a one-way valve 3, a degassing filter tank 4, a sealing door 5, a magnetic separation and impurity removal barrel 6, an anaerobic tank 7, an aerobic tank 8, a membrane purification tank 9, a water quality detector 10, a three-way pipe 11, an electromagnetic valve 12, a return pipeline 13, a water pump 14, a drain pipeline 15, a box 16, a partition plate 17, an exhaust valve 18, a lever 19, a floating ball 20, a box cover 21, a sealing liquid 22, a filter screen plate 23, an active carbon screen plate 24, a feed pipe 25, a barrel 26, a guide plate 27, an electromagnet assembly 28, a vibrator 29, a discharge pipe 30, a magnetic shaft 31, a reverse osmosis membrane filter element 32, an ultrafiltration membrane filter element 33, a sealing mounting seat 34 and a mounting ring 35.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 5, a chemical sewage treatment system comprises a cyclone 1, a coagulating sedimentation tank 2, a plurality of degassing and filtering boxes 4, a magnetic separation and impurity removal barrel 6, two sets of biochemical treatment mechanisms and a membrane purification box 9. The degassing filter box 4 comprises a box body 16 with an open top and a flange connected with a box cover 21, a partition plate 17 is horizontally arranged in the upper part of the box body 16, an exhaust chamber is arranged above the partition plate 17, and a filter chamber is arranged below the partition plate 17 and is respectively used for removing gas and impurities in chemical wastewater. The side wall of the box 16 corresponding to the exhaust chamber is provided with an exhaust valve 18 for exhausting. The left and right side walls of the box 16 corresponding to the filtering chamber are respectively provided with a water inlet and a water outlet for water inlet and water outlet. The filter chamber is interior interval and can dismantle and be equipped with a plurality of filter screen boards 23 and a plurality of active carbon otter board 24, filter screen board 23 and active carbon otter board 24 crisscross setting and filter screen board 23 aperture by the water inlet to the delivery port direction of filter chamber and decrease progressively, can realize that the purification treatment effect can be improved greatly to chemical sewage's multiple filtration edulcoration and many times active carbon adsorption, more is favorable to guaranteeing chemical sewage's treatment quality. Meanwhile, the filter screen plate 23 and the activated carbon screen plate 24 are detachably connected, so that the filter screen plate 23 and the activated carbon screen plate 24 can be maintained and replaced more conveniently, and the filtering and impurity removing effects of the filter screen plate 23 and the adsorption and purification effects of the activated carbon screen plate 24 are ensured;

magnetic separation edulcoration section of thick bamboo 6 includes barrel 26, and the top of barrel 26 is equipped with inlet pipe 25, inside from top to bottom the interval be equipped with polylith guide plate 27, the bottom is equipped with discharging pipe 30. One end of each guide plate 27 is fixedly arranged on the inner side wall of the barrel 26, the other end of each guide plate is inclined downwards, a gap is reserved between each guide plate and the corresponding inner side wall of the barrel 26, and the inclination directions of the two adjacent guide plates 27 are opposite. A magnetic shaft 31 is horizontally and rotatably arranged in the discharge pipe 30, and electromagnet assemblies 28 are arranged in the magnetic shaft 31 and the upper part of the guide plate 27. During the use, the accessible polylith guide plate 27 carries out the water conservancy diversion to chemical industry sewage, slows down its flow rate to can utilize the interior electro-magnet subassembly 28 of each guide plate 27 and magnetic axis to carry out a lot of effective absorption to detach to magnetic impurities and ion that contain in the chemical industry sewage at this in-process, thereby further improve the purification treatment effect to chemical industry sewage, more be favorable to the environmental protection. After the magnetic separation impurity removal barrel 6 is used for a period of time, the connection between the discharge pipe 30 and the biochemical treatment mechanism can be disconnected in a shutdown state, and the circuits of the electromagnet assemblies 28 are disconnected, so that the adsorbed impurities can lose the magnetic attraction force, flow along the guide plate and are finally discharged through the discharge pipe 30, and the high efficiency of the magnetic separation impurity removal is ensured;

the biochemical treatment mechanism comprises an anaerobic tank 7 and an aerobic tank 8, wherein a water outlet of the anaerobic tank 7 is communicated with a water inlet of the aerobic tank 8, namely the anaerobic tank 7 and the aerobic tank 8 are connected in series for use, so that the chemical sewage is subjected to anaerobic and aerobic purification treatment in sequence. The lower part of one side of the membrane purification box 9 is provided with a water inlet, the upper part of the other side is provided with a water outlet, and a plurality of reverse osmosis membrane filter elements 32 and a plurality of ultrafiltration membrane filter elements 33 are arranged in the membrane purification box at intervals in sequence from the direction of the water inlet to the direction of the water outlet, so that multiple reverse osmosis and multiple ultrafiltration purification treatments on chemical sewage can be realized;

the bottom delivery port of swirler 1 and the water inlet intercommunication of coagulating sedimentation tank 2, the water inlet of a plurality of gas filter 4 that disappears all connect in parallel on the water inlet of coagulating sedimentation tank 2, the delivery port of a plurality of gas filter 4 that disappears all connects in parallel on the top inlet pipe 25 of magnetic separation edulcoration section of thick bamboo 6, the water inlet of anaerobic jar 7 all connects in parallel on the bottom discharging pipe 30 of magnetic separation edulcoration section of thick bamboo 6, the delivery port of aerobic jar 8 all connects in parallel on the water inlet of membrane purifying box 9. The water quality detector 10 is arranged on the water outlet of the membrane purifying box 9, the water outlet is communicated with the three-way pipe 11, two water outlet ports of the three-way pipe 11 are respectively communicated with the return pipeline 13 and the drain pipeline 15, the electromagnetic valve 12 is arranged on the return pipeline 13 and the drain pipeline 15, and the tail end of the return pipeline 13 is communicated with the water outlet of the coagulating sedimentation tank 2, so that when in use, through the arrangement and matching of the cyclone 1, the coagulating sedimentation tank 2, the plurality of degassing and filtering boxes 4, the magnetic separation and impurity removal barrel 6, the two groups of biochemical treatment mechanisms and the membrane purifying box 9, the oil-water separation, the sedimentation, the multi-stage filtration and the adsorption purification, the magnetic separation and the biochemical treatment of the chemical sewage can be sequentially realized, and then the double-membrane purification of reverse osmosis and ultrafiltration is carried out, thereby not only reducing the pressure for the double-membrane purification, reducing the damage to the double-membrane purification system, but also greatly improving the purification treatment capability of the chemical sewage, ensuring the treatment efficiency and quality of chemical sewage. Meanwhile, the water quality detector is matched with the return pipeline in arrangement, so that the chemical sewage can be subjected to multi-cycle purification treatment, the cleanliness of finally discharged sewage is ensured, and the environment is protected. The parallel connection of the plurality of degassing filter boxes 4 and the parallel connection of the two sets of biochemical treatment mechanisms can greatly improve the treatment efficiency of chemical sewage, share the treatment pressure and further ensure the quality of purification treatment.

In this embodiment, the exhaust chamber is filled with sealing liquid 21, and the end of the exhaust valve 18 located at the exhaust chamber is connected with a floating ball 20 through a lever 19, so that in use, as chemical sewage flows through the filter chamber, gas in the exhaust chamber will increase continuously, thereby increasing the pressure and lowering the interface of the sealing liquid. When the interface descends to a certain height, the floating ball 20 descends along with the interface, and the exhaust valve 18 is opened through the action of the lever 19, so that the gas is discharged. After the gas is discharged, the sealing liquid interface rises, the floating ball 20 rises along with the interface, so that the exhaust valve 18 is closed again, the more specific exhaust process and the working principle of the filter are the same as those of the conventional air elimination filter, and the filter belongs to the prior art and is not detailed herein. The front end of the box body 16 corresponding to the filter chamber is opened and is hinged with a sealing door 5. The bottom of the partition plate 17 corresponding to the filter screen plate 23 and the activated carbon screen plate 24 and the bottom of the box body 16 are respectively provided with a slot, the two ends of the top and the bottom of the filter screen plate 23 and the activated carbon screen plate 24 are respectively inserted into the corresponding slots, so that after the degassing filter box 4 is used for a period of time, the sealing door 5 can be opened through the access, the original filter screen plate 23 and the original activated carbon screen plate 24 are drawn out from the corresponding slots, the filter screen plate 23 and the activated carbon screen plate 24 can be maintained and replaced, and the filtering and impurity removing effects of the filter screen plate 23 and the activated carbon screen plate 24 are ensured.

In this embodiment, the bottom of the guide plate 27 is provided with a vibrator 29, which can increase the flow rate of the impurities and accelerate the discharge of the impurities when cleaning the adsorbed impurities.

In this embodiment, the aperture of the plurality of reverse osmosis membrane filter elements 32 decreases progressively from the water inlet to the water outlet of the membrane purification box 9, and the aperture of the plurality of ultrafiltration membrane filter elements 33 decreases progressively from the water inlet to the water outlet of the membrane purification box 9, so that the multistage reverse osmosis and the multistage ultrafiltration purification are realized in cooperation, and the purification effect is improved. Reverse osmosis membrane filter core 32 and ultrafiltration membrane filter core 33's front side, rear side and bottom are all pegged graft on the inner wall of the membrane purifying box 9 that corresponds, reverse osmosis membrane filter core 32 and ultrafiltration membrane filter core 33's top all is equipped with seal installation seat 34, membrane purifying box 9 and fixedly connected with collar 35 are stretched out to seal installation seat 34's top, make after reverse osmosis filter core 33 and ultrafiltration membrane filter core 34 use a period, reverse osmosis filter core 33 and ultrafiltration membrane filter core 34 are extracted to accessible collar 35, be more convenient for to reverse osmosis filter core 33 and ultrafiltration membrane filter core 34's washing change, with guarantee purifying effect between them.

In this embodiment, return line 13 is close to one of 2 delivery ports in coagulating sedimentation tank and is served and be equipped with check valve 3 to when avoiding normally handling sewage, during chemical industry sewage refluence advances return line, guarantee to go on smoothly stably chemical industry sewage's purification treatment.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. A chemical sewage treatment system is characterized by comprising a cyclone, a coagulating sedimentation tank, a plurality of degassing filter boxes, a magnetic separation impurity removal barrel, two groups of biochemical treatment mechanisms and a membrane purification box, wherein each degassing filter box comprises a box body with an open top and a box cover connected through a flange, a partition plate is horizontally arranged in the upper part of the box body, an exhaust chamber is arranged above the partition plate, a filter chamber is arranged below the partition plate, exhaust valves are arranged on the side walls of the box body corresponding to the exhaust chamber, water inlets and water outlets are respectively arranged on the left side wall and the right side wall of the box body corresponding to the filter chamber, a plurality of filter screen plates and a plurality of activated carbon screen plates are arranged in the filter chamber at intervals and detachably, the filter screen plates and the activated carbon screen plates are arranged in a staggered mode; the magnetic separation impurity removal barrel comprises a barrel body, wherein a feeding pipe is arranged at the top of the barrel body, a plurality of guide plates are arranged at intervals from top to bottom inside the barrel body, a discharging pipe is arranged at the bottom of the barrel body, one end of each guide plate is fixedly arranged on the inner side wall of the barrel body, the other end of each guide plate is obliquely downwards arranged, a gap is reserved between each guide plate and the corresponding inner side wall of the barrel body, the inclination directions of the two adjacent guide plates are opposite, a magnetic shaft is horizontally and rotatably arranged in each discharging pipe, and electromagnet assemblies are arranged inside the magnetic shaft and on the upper portions of the guide plates; the biochemical treatment mechanism comprises an anaerobic tank and an aerobic tank, and a water outlet of the anaerobic tank is communicated with a water inlet of the aerobic tank; the lower part of one side of the membrane purification box is provided with a water inlet, the upper part of the other side of the membrane purification box is provided with a water outlet, and a plurality of reverse osmosis membrane filter elements and a plurality of ultrafiltration membrane filter elements are detachably arranged in the membrane purification box at intervals from the direction of the water inlet to the direction of the water outlet; the bottom delivery port and the coagulating sedimentation tank water inlet intercommunication of swirler, the water inlet of a plurality of gas filter boxes that disappears all connect in parallel on the coagulating sedimentation tank water inlet, and the delivery port of a plurality of gas filter boxes that disappears all connects in parallel on the top inlet pipe of a magnetic separation edulcoration section of thick bamboo, the water inlet of anaerobic jar all connects in parallel on the bottom discharging pipe of a magnetic separation edulcoration section of thick bamboo, the delivery port of aerobic jar all connects in parallel on the water inlet of membrane purifying box, it has the three-way pipe to be equipped with water quality testing appearance and this delivery port intercommunication on the delivery port of membrane purifying box, two water outlet port of three-way pipe communicate respectively has return line and drain line, all be equipped with solenoid valve and return line tail end intercommunication on the delivery port of coagulating sedimentation tank on return line and the drain line.

2. The chemical sewage treatment system of claim 1, wherein the exhaust chamber contains a sealing liquid, and a floating ball is connected to one end of the exhaust valve, which is positioned at the exhaust chamber, through a lever.

3. The chemical sewage treatment system according to claim 1, wherein the front end of the box body corresponding to the filtering chamber is open and is hinged with a sealing door, the bottom of the partition plate corresponding to the filtering screen plate and the activated carbon screen plate and the bottom in the box body are provided with slots, and the two ends of the top and the bottom of the filtering screen plate and the activated carbon screen plate are respectively inserted into the corresponding slots.

4. The chemical wastewater treatment system according to claim 1, wherein a vibrator is arranged at the bottom of the guide plate.

5. The chemical wastewater treatment system according to claim 1, wherein the apertures of the plurality of reverse osmosis membrane cartridges decrease from the water inlet to the water outlet of the membrane purification tank, and the apertures of the plurality of ultrafiltration membrane cartridges decrease from the water inlet to the water outlet of the membrane purification tank.

6. The chemical wastewater treatment system according to claim 5, wherein the front side, the rear side and the bottom end of the reverse osmosis membrane filter element and the ultrafiltration membrane filter element are respectively inserted on the inner wall of the corresponding membrane purification box, the top ends of the reverse osmosis membrane filter element and the ultrafiltration membrane filter element are respectively provided with a sealing installation seat, and the top of the sealing installation seat extends out of the membrane purification box and is fixedly connected with an installation ring.

7. The chemical wastewater treatment system according to claim 1, wherein a check valve is disposed at an end of the return line close to the outlet of the coagulation sedimentation tank.

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