CN117303642A - Multistage sewage treatment unit, recycling system and purifying method for machining waste liquid - Google Patents
Multistage sewage treatment unit, recycling system and purifying method for machining waste liquid Download PDFInfo
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- CN117303642A CN117303642A CN202311362788.6A CN202311362788A CN117303642A CN 117303642 A CN117303642 A CN 117303642A CN 202311362788 A CN202311362788 A CN 202311362788A CN 117303642 A CN117303642 A CN 117303642A
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- 239000007788 liquid Substances 0.000 title claims abstract description 104
- 238000011282 treatment Methods 0.000 title claims abstract description 91
- 239000002699 waste material Substances 0.000 title claims abstract description 89
- 239000010865 sewage Substances 0.000 title claims abstract description 40
- 238000003754 machining Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004064 recycling Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 16
- 238000003487 electrochemical reaction Methods 0.000 claims abstract description 11
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 9
- 230000001965 increasing effect Effects 0.000 claims abstract description 9
- 231100000719 pollutant Toxicity 0.000 claims abstract description 9
- 239000002351 wastewater Substances 0.000 claims description 59
- 238000010438 heat treatment Methods 0.000 claims description 36
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- 238000001556 precipitation Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- 238000004062 sedimentation Methods 0.000 claims description 11
- 239000013049 sediment Substances 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 8
- 239000003792 electrolyte Substances 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
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Abstract
The invention discloses a multi-stage sewage treatment unit, a recycling system and a purifying method of machining waste liquid, and relates to the technical field of machining waste liquid treatment. The electromagnetic heat exchange mechanism is reasonable in structure, heat is transferred to waste liquid or air bubbles through energy conversion when the air bubbles pass through the outer cover and the top cover, the reaction rate can be improved when the waste liquid and the air bubbles carry heat to pass through the electrochemical treatment mechanism, the electrochemical reaction rate can be obviously improved when the temperature is increased, and the reaction rate constant can be increased when the temperature is increased, so that pollutant removal and wastewater treatment processes are accelerated, and shorter treatment time and higher treatment efficiency are caused.
Description
Technical Field
The invention relates to the technical field of machining waste liquid treatment, in particular to a multi-stage sewage treatment unit, a recycling system and a purifying method of machining waste liquid.
Background
Machining waste is waste water generated from machining processes, typically containing various types of waste water and contaminants, and is a process widely used in manufacturing for manufacturing parts, assembled parts and other workpieces, in which cutting, grinding, drilling and other machining methods are typically used to machine raw materials into workpieces of desired shape and size;
the composition and nature of the machining waste liquid may vary depending on the type and materials of the machining process, but generally includes the following types of waste water and pollutants: coolant wastewater, metal swarf, oil stains, dust and particulate matter, organic and inorganic pollutants.
For example, the invention disclosed in publication No. CN111841143a, entitled waste liquid treatment apparatus, provides a waste liquid treatment apparatus that more effectively precipitates processing scraps in a precipitation tank, wherein a precipitation portion for precipitating the processing scraps contained in the processing waste liquid in the precipitation tank has a plurality of partition plates disposed at predetermined intervals so as to intersect with a direction in which the processing waste liquid flows in a horizontal direction, and a zigzag flow path for allowing the processing waste liquid to flow in the horizontal direction is formed, and a time for precipitating the processing scraps is secured with respect to a time for allowing the processing waste liquid to flow in the flow path, thereby reliably precipitating the processing scraps.
The waste liquid generally needs longer reaction time when undergoing electrochemical treatment, and because different waste water with temperature difference needs to adjust proper reaction time to conduct sufficient electrolytic reaction when undergoing electrochemical treatment, and chemical reactants with more effects are also needed, the application provides a multi-stage sewage treatment unit, a recycling system and a purifying method for machining the waste liquid to meet the demands.
Disclosure of Invention
The purpose of the present application is to provide a multi-stage sewage treatment unit, a recycling system and a purifying method for machining waste liquid, which can effectively solve the problems set forth in the background art.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a multistage sewage treatment unit of machining waste liquid, including the coarse screen filter unit, elementary sediment and sewage treatment case, the inside of sewage treatment case is provided with chemical reaction unit, second grade precipitation unit, filter unit and disinfection unit, chemical reaction unit's inner chamber bottom is provided with the feed liquor subassembly, the feed liquor subassembly is used for guiding the sewage flow direction, sewage treatment case's surface is provided with the bubble generator that extends to inside the chemical reaction unit, bubble generator's inside is provided with electromagnetic heat exchange mechanism, electromagnetic heat exchange mechanism is used for heating the bubble that bubble generator produced, chemical reaction unit's inside and the top that is located electromagnetic heat exchange mechanism are provided with electrochemical treatment mechanism.
Preferably, the liquid inlet component comprises an installation shell arranged at the bottom of the inner cavity of the chemical reaction unit, and a plurality of liquid outlet holes distributed in a rectangular array are formed in the outer surface of the installation shell.
Preferably, the bubble generator comprises a bubble generator and an air compressor, the air compressor is arranged on the upper portion of one side of the sewage treatment box, the bubble generator is arranged in the chemical reaction unit, a vent pipe is arranged on the outer surface of the air compressor, one end of the vent pipe penetrates through the sewage treatment box to be connected with the bubble generator, and a plurality of bubble heads distributed in a rectangular array are arranged on the upper portion of the bubble generator.
Preferably, the electromagnetic heat exchange mechanism comprises a mounting pipe arranged outside the bubble head, the top of the mounting pipe is provided with an outer cover, the outer surface of the outer cover is provided with a plurality of leak holes, the top of the outer cover is provided with a clamping ring buckle, and the inside of the clamping ring buckle is provided with a top cover;
the inside of dustcoat is provided with support piece, and support piece's inside is provided with the multilayer heating cover, and the upper end of support piece has seted up a plurality of and is the bubble thru hole that the annular array distributes, and the inner chamber bottom of multilayer heating cover is provided with the heater strip dish, and the surface upper portion of multilayer heating cover is provided with the awl cover head, and the upper end of awl cover head extends to the outside of top cap.
Preferably, the shape of the multi-layer heating cover is a funnel shape, and a plurality of vent holes distributed in an annular array are formed in the upper part of the outer surface of the multi-layer heating cover.
A multi-stage sewage treatment unit recycling system of machining waste liquid is based on the recycling system adopted by the multi-stage sewage treatment unit of the machining waste liquid: the machining wastewater is firstly introduced into a coarse screen filtering unit, the wastewater is conveyed to a primary sediment through a filtering water pipeline by the coarse screen filtering unit, and the wastewater enters the primary sediment to allow larger solid particles to sediment therein so as to be easier to remove in a later treatment step;
the wastewater is conveyed into a sewage treatment box by a water pump after primary precipitation, the wastewater is catalyzed by a chemical reaction unit, then enters a secondary precipitation unit to secondarily precipitate impurities in the water, and the precipitated wastewater is conveyed into a disinfection unit for disinfection after being filtered again by a filtering unit;
the flow of the chemical reaction unit is divided into three parts, namely a bubble generator, an electromagnetic heat exchange mechanism and an electrochemical treatment mechanism, wherein wastewater is catalyzed by bubbles through the bubble generator, a large number of bubbles are quickly risen and fed into the electromagnetic heat exchange mechanism, and the electromagnetic heat exchange mechanism transfers heat to the bubbles and then rises into the electrochemical treatment mechanism;
the speed of the electrochemical treatment mechanism can be increased by heating the bubbles, and the efficiency of wastewater treatment is improved. Chemical reactions are generally faster at high temperatures and can purify wastewater more rapidly.
Preferably, the coarse screen filter unit is used to remove large particulate matter, such as swarf, gravel and other large particulate impurities, from the wastewater, and to prevent such matter from entering subsequent processing units, reducing damage to the system.
Preferably, the primary precipitation allows suspended solids in the wastewater to settle to the bottom, forming sludge, with clean water being discharged at the top, and the sludge typically requiring periodic cleaning and disposal.
A method for purifying a multi-stage sewage treatment unit of machining waste liquid comprises the following steps:
step one, when purifying the waste liquid, introducing the waste liquid into a coarse screen filtering unit, removing large-particle solid waste by using a grid, a grating or a physical filtering device in the coarse screen filtering unit, then introducing the waste liquid into primary precipitation, and introducing the waste liquid into a chemical reaction unit after the primary precipitation of the waste liquid;
step two, the waste liquid entering the chemical reaction unit is guided by a liquid inlet component to slowly flow upwards, an air source in the air bubble generator continuously charges air into the waste liquid to generate air bubbles, the generated air bubbles have lighter mass and quickly float upwards, the upward floating air bubbles enter an electromagnetic heat exchange mechanism, and the air bubbles transfer heat to the waste liquid and the air bubbles after being heated by energy conversion of the electromagnetic heat exchange mechanism;
step three, the waste liquid and the generated bubbles flow upwards after being heated by the electromagnetic heat exchange mechanism, the waste liquid with the generated bubbles carries out electrochemical reaction by the electrochemical treatment mechanism, the current initiates oxidation and reduction reactions by the anode and the cathode of the electrode, the electrochemical reaction can decompose or remove pollutants such as organic matters, heavy metals, ammonia nitrogen and the like in the waste water, and the bubble generator can generate a large amount of bubbles with heat in the waste liquid and the waste liquid also has heat, so that the waste liquid can help to improve the conductivity of electrolyte and enhance the transmission efficiency of the current when the electrochemical treatment mechanism reacts, thereby improving the efficiency of electrochemical treatment;
step four, the waste liquid flows into the secondary sedimentation unit after undergoing chemical reaction through the electrochemical treatment mechanism, particles in the sediment waste water entering the secondary sedimentation unit are introduced into the filtering unit, the filtering unit is used for filtering particle impurities in the waste water, the filtered waste water can meet the discharge standard and then is introduced into the disinfection unit, and the disinfection unit is used for disinfecting the waste water and then recycling the waste water.
In summary, the invention has the technical effects and advantages that:
1. the invention has reasonable structure, through the electromagnetic heat exchange mechanism, the air bubbles transfer heat to the waste liquid or the air bubbles through energy conversion when passing through the outer cover and the top cover, and when the waste liquid and the air bubbles carry heat to pass through the electrochemical treatment mechanism, the reaction rate can be improved, the electrochemical reaction rate can be obviously improved by heating, and the reaction rate constant can be increased by higher temperature, so that the pollutant removal and wastewater treatment processes are accelerated, and the shorter treatment time and the higher treatment efficiency are caused;
2. the electromagnetic heat exchange mechanism provided by the invention can improve the oxygen solubility, the temperature rise is favorable for improving the oxygen solubility in water, in some electrochemical treatments, such as oxidation-reduction reaction, oxygen is necessary, so that the oxygen solubility can improve the reaction efficiency, and the electrode polarization can be reduced, in the electrochemical treatments, the electrode polarization refers to the uneven current density on the surface of the electrode, the efficiency can be reduced, the electrode polarization can be lightened by heating, and the stable current density can be maintained;
3. the electromagnetic heat exchange mechanism provided by the invention can improve the material transmission, the temperature rise can improve the material transmission performance, including pollutants and reaction products in the wastewater, and the reaction products can be ensured to leave the surface of the electrode rapidly, so that the electrochemical reaction efficiency is improved, the electrolyte concentration is reduced, the electrolyte concentration required by heating can be reduced, the amount of chemicals used in wastewater treatment is reduced, and the treatment cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description, which are only some embodiments of the present application, may also obtain other drawings according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a multi-stage sewage treatment unit for machining waste liquid;
FIG. 2 is a perspective structural cross-sectional view of a multi-stage wastewater treatment unit for machining waste liquid;
FIG. 3 is a schematic view of a three-dimensional connection structure of a bubble generator and a liquid inlet assembly;
FIG. 4 is a schematic view of a three-dimensional connection structure of a liquid inlet assembly;
FIG. 5 is a schematic view of a three-dimensional connection structure of the bubble generator;
FIG. 6 is a schematic diagram of a three-dimensional connection structure of an electromagnetic heat exchange mechanism;
FIG. 7 is a cross-sectional view of a three-dimensional connection structure of the electromagnetic heat exchange mechanism;
FIG. 8 is a schematic view of a three-dimensional connection structure of the housing;
FIG. 9 is a schematic view of a three-dimensional connection structure of the top cover;
FIG. 10 is a cross-sectional view of a three-dimensional connection structure of the electromagnetic heat exchange mechanism;
FIG. 11 is a diagram of a recycling system of a multi-stage wastewater treatment unit for machining waste liquid.
In the figure: 1. a sewage treatment tank; 2. a bubble generator; 21. an air compressor; 22. a vent pipe; 23. a bubble generator; 24. a bubble head; 3. an electrochemical treatment mechanism; 4. a liquid inlet component; 41. a mounting shell; 42. a liquid outlet hole; 5. an electromagnetic heat exchange mechanism; 51. an outer cover; 52. a top cover; 53. a multi-layer heating mantle; 54. a support; 55. a cone cover head; 56. installing a pipe; 57. a leak hole; 58. a clamping ring buckle; 59. a heating wire tray; 511. an exhaust hole; 512. a bubble through hole; 6. a chemical reaction unit; 7. a secondary precipitation unit; 8. a filtering unit; 9. a sterilizing unit; 10. primary precipitation; 11. a coarse screen filtration unit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The multi-stage sewage treatment unit for the machining waste liquid comprises a coarse screen filtering unit 11, a primary sedimentation unit 10 and a sewage treatment box 1, wherein a chemical reaction unit 6, a secondary sedimentation unit 7, a filtering unit 8 and a disinfection unit 9 are arranged in the sewage treatment box 1, a liquid inlet component 4 is arranged at the bottom of an inner cavity of the chemical reaction unit 6, the liquid inlet component 4 is used for guiding the flow direction of sewage, a bubble generator 2 extending to the inside of the chemical reaction unit 6 is arranged on the outer surface of the sewage treatment box 1, an electromagnetic heat exchange mechanism 5 is arranged in the bubble generator 2, bubbles generated by the bubble generator 2 are heated by the electromagnetic heat exchange mechanism 5, and an electrochemical treatment mechanism 3 is arranged in the chemical reaction unit 6 and above the electromagnetic heat exchange mechanism 5.
It is worth noting that when the waste liquid is purified, the waste liquid is introduced into the coarse screen filtering unit 11, the large-particle solid waste is removed through a grid, a grating or a physical filtering device in the coarse screen filtering unit 11, then the waste liquid is introduced into the primary precipitation 10, the waste liquid is introduced into the chemical reaction unit 6 after the primary precipitation 10 is carried out, the waste liquid entering the chemical reaction unit 6 firstly guides the water flow to slowly flow upwards through the liquid inlet component 4, the air source in the air bubble generator 2 continuously charges the waste liquid to generate air bubbles, the generated air bubbles have lighter mass and quickly float upwards, the air bubbles floating upwards enter the electromagnetic heat exchange mechanism 5, and the air bubbles transfer heat to the waste liquid and the air bubbles after being heated through the energy conversion of the electromagnetic heat exchange mechanism 5;
the waste liquid and the generated bubbles flow upwards after being heated by the electromagnetic heat exchange mechanism 5, the waste liquid with the generated bubbles undergoes electrochemical reaction by the electrochemical treatment mechanism 3, the current initiates oxidation and reduction reactions by the anode and the cathode of the electrode, the electrochemical reaction can decompose or remove pollutants such as organic matters, heavy metals, ammonia nitrogen and the like in the waste water, and the bubble generator 2 enables a large amount of bubbles with heat to be generated in the waste liquid and the waste liquid to also carry heat, so that the waste liquid can be helpful for improving the conductivity of electrolyte and enhancing the transmission efficiency of the current when the electrochemical treatment mechanism 3 reacts, thereby improving the efficiency of electrochemical treatment;
the waste liquid flows into the secondary sedimentation unit 7 after undergoing chemical reaction by the electrochemical treatment mechanism 3, particles in the sediment waste water entering the secondary sedimentation unit 7 are introduced into the filtering unit 8, the filtering unit 8 filters particle impurities in the waste water, the filtered waste water can meet the discharge standard and then is introduced into the disinfection unit 9, and the disinfection unit 9 carries out cyclic utilization after disinfecting the waste water.
The liquid inlet component 4 comprises an installation shell 41 arranged at the bottom of the inner cavity of the chemical reaction unit 6, and a plurality of liquid outlet holes 42 distributed in a rectangular array are formed in the outer surface of the installation shell 41.
Further, when the waste liquid is introduced into the installation housing 41 by the water pump, the waste liquid first enters the installation housing 41, and the flow rate of the waste liquid entering the installation housing 41 is large, so that the flow rate of the waste liquid is disturbed by passing through the liquid outlet hole 42 on the installation housing 41, and then the waste liquid slowly flows upwards.
The bubble generator 2 comprises a bubble generator 23 and an air compressor 21, the air compressor 21 is arranged on the upper portion of one side of the sewage treatment tank 1, the bubble generator 23 is arranged in the chemical reaction unit 6, a vent pipe 22 is arranged on the outer surface of the air compressor 21, one end of the vent pipe 22 penetrates through the sewage treatment tank 1 to be connected with the bubble generator 23, and a plurality of bubble heads 24 distributed in a rectangular array are arranged on the upper portion of the bubble generator 23.
Further, the air compressor 21 is filled with air into the vent pipe 22, the air enters the bubble generator 23 through the vent pipe 22, then bubbles are ejected through the bubble head 24 on the bubble generator 23, waste liquid is required as a medium for generating the bubbles, and the size of the ejected bubbles depends on the mechanical control of the bubble head 24.
The electromagnetic heat exchange mechanism 5 comprises an installation pipe 56 installed outside the bubble head 24, the top of the installation pipe 56 is provided with an outer cover 51, the outer surface of the outer cover 51 is provided with a plurality of leakage holes 57, the top of the outer cover 51 is provided with a clamping ring buckle 58, and the inside of the clamping ring buckle 58 is provided with a top cover 52;
the inside of dustcoat 51 is provided with support piece 54, and the inside of support piece 54 is provided with multilayer heating cover 53, and the upper end of support piece 54 has seted up a plurality of bubble thru hole 512 that are annular array and distribute, and the inner chamber bottom of multilayer heating cover 53 is provided with heater strip dish 59, and the surface upper portion of multilayer heating cover 53 is provided with cone cover head 55, and the upper end of cone cover head 55 extends to the outside of top cap 52.
It should be noted that, after the bubble head 24 generates bubbles, the bubbles will float upwards due to the large amount of air contained in the bubbles, and the floating bubbles will enter the multi-layer heating cover 53, wherein the multi-layer heating cover 53 heats by electromagnetic heating, so that the bubbles entering the multi-layer heating cover 53 will carry heat, and the central bubbles will be heated again by the heating wire disc 59, so that the central bubbles and the wastewater can be heated up quickly, and the bubbles can stay in the multi-layer heating cover 53 for a long time due to the design of the multi-layer heating cover 53 in the shape shown in fig. 10;
wherein, the shape of the multi-layer heating cover 53 is a funnel shape, the upper part of the outer surface of the multi-layer heating cover 53 is provided with a plurality of vent holes 511 distributed in an annular array, so that bubbles and waste water entering the multi-layer heating cover 53 can flow through the vent holes 511, the outer cover 51 is arranged on the bubble head 24 through the mounting tube 56, so that the bubbles firstly enter the outer cover 51, and the multi-layer heating cover 53 is supported by the supporting piece 54 and the cone cover head 55, so that heat on the multi-layer heating cover 53 is also transferred to the outer cover 51 and the top cover 52;
because the outer cover 51 and the top cover 52 carry heat, and the outer cover 51 and the top cover 52 are hollow shapes shown in fig. 6-8, the heat is transferred to the waste liquid or the air bubbles through energy conversion when the air bubbles pass through the outer cover 51 and the top cover 52, and the reaction rate can be improved when the waste liquid and the air bubbles carry heat through the electrochemical treatment mechanism 3, the electrochemical reaction rate can be obviously improved by heating, and the reaction rate constant can be increased by higher temperature, so that pollutant removal and wastewater treatment processes are accelerated, and shorter treatment time and higher treatment efficiency are caused;
but also increases in oxygen solubility, which can help to increase oxygen solubility in water, in some electrochemical processes, such as redox reactions, where oxygen is necessary, so increasing oxygen solubility can increase reaction efficiency, and also decreases electrode polarization, which is the non-uniform current density at the electrode surface, which can lead to reduced efficiency, and increases in temperature can reduce electrode polarization, which can help to maintain a stable current density;
and can improve the material and transmit, the temperature rises and can improve the material and transmit the performance, including pollutant and reaction product in the waste water, help to ensure the reaction product leaves the electrode surface rapidly, thus raise the electrochemical reaction efficiency, reduce the electrolyte concentration, raise the temperature and can reduce the electrolyte concentration needed, thus reduce the amount of chemicals used in the waste water treatment, reduce the treatment cost.
A multi-stage sewage treatment unit recycling system of machining waste liquid is based on the recycling system adopted by the multi-stage sewage treatment unit of the machining waste liquid: the machining wastewater is first introduced into the coarse screen filter unit 11, the wastewater is conveyed to the primary precipitation 10 through the coarse screen filter unit 11 by a filtered water pipe, and the wastewater enters the primary precipitation 10 to allow larger solid particles to be precipitated therein for easier removal in a later treatment step;
wherein the sludge generated during the treatment of the primary precipitate 10 may be treated and disposed of by sludge concentration, drying, incineration or other methods;
the specific machining waste liquid treatment system will vary according to the nature of the waste water, the treatment requirements and environmental regulations, and the flow chart and system configuration will need to be designed and adjusted according to the specific circumstances, and the nature, treatment objectives and sustainability requirements of the waste water will need to be considered when designing and implementing the machining waste liquid treatment system.
The wastewater is conveyed into a wastewater treatment box 1 by a water pump after passing through a primary precipitation 10, is subjected to reaction catalysis by a chemical reaction unit 6, enters a secondary precipitation unit 7, precipitates impurities in the water for the second time, is filtered again by a filtering unit 8, is conveyed into a disinfection unit 9 for disinfection and is reused;
the flow of the chemical reaction unit 6 is divided into three parts, namely a bubble generator 2, an electromagnetic heat exchange mechanism 5 and an electrochemical treatment mechanism 3, wherein wastewater is catalyzed by bubbles through the bubble generator 2, a large number of bubbles are quickly lifted and fed into the electromagnetic heat exchange mechanism 5, and the electromagnetic heat exchange mechanism 5 transfers heat to the bubbles and then ascends into the electrochemical treatment mechanism 3;
the rate of the electrochemical treatment mechanism 3 can be increased by heating the bubbles, and the efficiency of wastewater treatment is improved. Chemical reactions are generally faster at high temperatures and can purify wastewater more rapidly.
The coarse screen filter unit 11 is used to remove large particulate matter such as metal shavings, grits and other large particulate impurities from the wastewater, and to prevent such matter from entering subsequent treatment units, reducing damage to the system.
The primary sedimentation 10 allows suspended solids in the wastewater to settle to the bottom, forming sludge, with clean water being discharged at the top, and the sludge typically requiring periodic cleaning and disposal.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The utility model provides a multistage sewage treatment unit of machining waste liquid, includes coarse screen filter unit (11), elementary sediment (10) and sewage treatment case (1), the inside of sewage treatment case (1) is provided with chemical reaction unit (6), second grade precipitation unit (7), filter unit (8) and disinfection unit (9), its characterized in that: the utility model discloses a chemical reaction unit, including chemical reaction unit (6), inner chamber bottom of chemical reaction unit (6) is provided with feed liquor subassembly (4), and feed liquor subassembly (4) are used for guiding the sewage flow direction, the surface of sewage treatment case (1) is provided with and extends to inside bubble generator (2) of chemical reaction unit (6), the inside of bubble generator (2) is provided with electromagnetism heat exchange mechanism (5), and electromagnetism heat exchange mechanism (5) are used for heating the bubble that bubble generator (2) produced, the inside of chemical reaction unit (6) just is located the top of electromagnetism heat exchange mechanism (5) and is provided with electrochemical treatment mechanism (3).
2. The multi-stage wastewater treatment unit for machining wastewater according to claim 1, wherein: the liquid inlet component (4) comprises an installation shell (41) arranged at the bottom of an inner cavity of the chemical reaction unit (6), and a plurality of liquid outlet holes (42) distributed in a rectangular array are formed in the outer surface of the installation shell (41).
3. The multi-stage wastewater treatment unit for machining wastewater according to claim 1, wherein: the air bubble generator (2) comprises an air bubble generator (23) and an air compressor (21), the air compressor (21) is arranged on the upper portion of one side of the sewage treatment box (1), the air bubble generator (23) is arranged in the chemical reaction unit (6), a vent pipe (22) is arranged on the outer surface of the air compressor (21), one end of the vent pipe (22) penetrates through the sewage treatment box (1) and is connected with the air bubble generator (23), and a plurality of air bubble heads (24) distributed in a rectangular array are arranged on the upper portion of the air bubble generator (23).
4. The multi-stage wastewater treatment unit for machining wastewater according to claim 1, wherein: the electromagnetic heat exchange mechanism (5) comprises an installation pipe (56) installed outside the bubble head (24), an outer cover (51) is arranged at the top of the installation pipe (56), a plurality of leakage holes (57) are formed in the outer surface of the outer cover (51), a clamping ring buckle (58) is arranged at the top of the outer cover (51), and a top cover (52) is arranged in the clamping ring buckle (58);
the inside of dustcoat (51) is provided with support piece (54), the inside of support piece (54) is provided with multilayer heating cover (53), and the upper end of support piece (54) has seted up a plurality of bubble thru hole (512) that are annular array and distribute, the inner chamber bottom of multilayer heating cover (53) is provided with heater strip dish (59), the surface upper portion of multilayer heating cover (53) is provided with awl cover head (55), and the upper end of awl cover head (55) extends to the outside of top cap (52).
5. The multi-stage wastewater treatment unit for machining wastewater according to claim 4, wherein: the shape of the multi-layer heating cover (53) is in a funnel shape, and a plurality of vent holes (511) distributed in an annular array are formed in the upper part of the outer surface of the multi-layer heating cover (53).
6. A multi-stage sewage treatment unit recycling system based on the machining waste liquid according to any one of claims 1 to 5, characterized in that the multi-stage sewage treatment unit based on the machining waste liquid adopts the recycling system: the machining wastewater is firstly introduced into a coarse screen filtering unit (11), the wastewater is conveyed to a primary sediment (10) through a filtering water pipeline by the coarse screen filtering unit (11), and the wastewater enters the primary sediment (10) to allow larger solid particles to sediment therein so as to be easier to remove in a later treatment step;
the wastewater is conveyed into a wastewater treatment box (1) by a water pump after passing through a primary precipitation unit (10), is subjected to reaction catalysis by a chemical reaction unit (6), then enters a secondary precipitation unit (7) to secondarily precipitate impurities in the water, and the precipitated wastewater is conveyed into a disinfection unit (9) for disinfection after being filtered again by a filtering unit (8);
the flow of the chemical reaction unit (6) is divided into three parts, namely a bubble generator (2), an electromagnetic heat exchange mechanism (5) and an electrochemical treatment mechanism (3), waste water is catalyzed by bubbles through the bubble generator (2), a large number of bubbles are quickly lifted and fed into the electromagnetic heat exchange mechanism (5), and the electromagnetic heat exchange mechanism (5) transfers heat to the bubbles and then ascends into the electrochemical treatment mechanism (3);
the speed of the electrochemical treatment mechanism (3) can be increased by heating the bubbles, and the efficiency of wastewater treatment is improved. Chemical reactions are generally faster at high temperatures and can purify wastewater more rapidly.
7. The recycling system of a multi-stage sewage treatment unit for machining waste liquid according to claim 6, wherein: the coarse screen filter unit (11) is used for removing large particulate matters in the wastewater, such as metal scraps, gravel and other large particulate impurities, and can prevent the matters from entering a subsequent treatment unit, so that damage to a system is reduced.
8. The recycling system of a multi-stage sewage treatment unit for machining waste liquid according to claim 6, wherein: the primary sedimentation (10) allows suspended solids in the wastewater to settle to the bottom, forming sludge, with clean water being discharged at the top, and the sludge typically requiring periodic cleaning and disposal.
9. A method for purifying a multi-stage sewage treatment unit of a machining waste liquid according to claim 6, characterized in that the specific method for purifying the machining waste liquid is as follows:
step one, when purifying the waste liquid, introducing the waste liquid into a coarse screen filtering unit (11), removing large-particle solid waste by using a grid, a grating or a physical filtering device in the coarse screen filtering unit (11), then introducing the waste liquid into a primary precipitation (10), and introducing the waste liquid into a chemical reaction unit (6) after the waste liquid is subjected to primary precipitation by the primary precipitation (10);
step two, the waste liquid entering the chemical reaction unit (6) is guided to slowly flow upwards through the liquid inlet component (4), the air source in the air bubble generator (2) continuously charges air into the waste liquid to generate air bubbles, the generated air bubbles have lighter mass and quickly float upwards, the air bubbles floating upwards enter the electromagnetic heat exchange mechanism (5), and the air bubbles transfer heat to the waste liquid and the air bubbles after being heated through energy conversion of the electromagnetic heat exchange mechanism (5);
step three, the waste liquid and the generated bubbles flow upwards after being heated by an electromagnetic heat exchange mechanism (5), the waste liquid with the generated bubbles undergoes electrochemical reaction by an electrochemical treatment mechanism (3), current is subjected to oxidation and reduction reactions by an electrode (anode and cathode), the electrochemical reaction can decompose or remove pollutants such as organic matters, heavy metals and ammonia nitrogen in the waste water, and a large number of bubbles with heat are generated in the waste liquid by a bubble generator (2) and the waste liquid also has heat, so that the conductivity of electrolyte can be improved, the transmission efficiency of the current is enhanced, and the efficiency of electrochemical treatment is improved when the waste liquid reacts by the electrochemical treatment mechanism (3);
step four, the waste liquid flows into the secondary sedimentation unit (7) after undergoing chemical reaction through the electrochemical treatment mechanism (3), particles in the sedimentation waste water entering the secondary sedimentation unit (7) are introduced into the filtering unit (8), the filtering unit (8) filters particle impurities in the waste water, the filtered waste water can meet the discharge standard and then is introduced into the disinfection unit (9), and the disinfection unit (9) can disinfect the waste water and then recycle the waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311362788.6A CN117303642A (en) | 2023-10-20 | 2023-10-20 | Multistage sewage treatment unit, recycling system and purifying method for machining waste liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311362788.6A CN117303642A (en) | 2023-10-20 | 2023-10-20 | Multistage sewage treatment unit, recycling system and purifying method for machining waste liquid |
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| Publication Number | Publication Date |
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| CN117303642A true CN117303642A (en) | 2023-12-29 |
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| CN202311362788.6A Pending CN117303642A (en) | 2023-10-20 | 2023-10-20 | Multistage sewage treatment unit, recycling system and purifying method for machining waste liquid |
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| Country | Link |
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| CN (1) | CN117303642A (en) |
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