CN112110586A

CN112110586A - Complete equipment for sewage treatment, evaporation, crystallization, recycling and reutilization

Info

Publication number: CN112110586A
Application number: CN202010871755.4A
Authority: CN
Inventors: 舒俭
Original assignee: Guangzhou City Xinde Industrial Co ltd
Current assignee: Guangzhou City Xinde Industrial Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-12-22

Abstract

The invention discloses a complete set of equipment for sewage treatment, evaporation, crystallization, recovery and reutilization, which comprises a wastewater storage chamber, a chemical sedimentation tank, an oil-water separator, a sludge processor, a falling film evaporator, a separator, a first compressor, a first heater and a primary filtering device, wherein the primary filtering device comprises a funnel-shaped filtering port and a temporary storage bin positioned below the filtering port, a first filter screen is detachably connected below the temporary storage bin, a liquid inlet communicated with the first filter screen is formed in the upper end of the wastewater storage chamber, the side edge of the temporary storage bin is rotatably connected to the wastewater storage chamber through a first rotating shaft, a first motor for driving the first rotating shaft to rotate is arranged above the temporary storage bin, and a buffer channel is arranged between the chemical sedimentation tank and the wastewater storage chamber. This structure realizes the quick recovery effect to after waste water treatment.

Description

Complete equipment for sewage treatment, evaporation, crystallization, recycling and reutilization

Technical Field

The invention relates to the technical field of sewage treatment, in particular to complete equipment for evaporation, crystallization, recovery and reutilization in sewage treatment.

Background

The sewage is caused by that new substances are mixed in the water or the water is deteriorated because of the change of external conditions, so that the original use function of the sewage cannot be maintained.

Sewage may be defined as a waste-laden liquid or water mixed with ground water, surface water, snow storms, etc. discharged from residential, institutional, commercial or industrial areas from the point of view of the source of the sewage. Sewage is classified into many categories, and there are many techniques and processes for reducing the environmental impact of sewage accordingly. Sewage can be classified into these four types according to the source of the sewage.

The first category is industrial wastewater, sewage from manufacturing mining and industrial production activities, including runoff leachate from industrial or commercial storage, processing, and other wastewater that is not domestic sewage.

The second type is domestic sewage from houses, office buildings, offices or the like; sanitary sewage; sewage water, including industrial waste water mixed in domestic sewage water in a sewer system.

The third category, commercial sewage, non-toxic, harmless sewage from commercial facilities with certain components exceeding domestic sewage. Such as restaurant sewage. Laundry sewage, animal feeding sewage, sewage generated by a hair salon, and the like.

Fourth, surface runoff from rain, snow, highway drainage, water from urban and industrial areas, etc., which does not penetrate into the soil, enters groundwater along streets and lands.

Among water pollution caused by human production activities, water pollution caused by industry is the most serious. For example, industrial wastewater contains many pollutants and complex components, and is not only difficult to purify in water, but also difficult to treat. Industrial wastewater is the most important cause of water body pollution caused by industrial pollution. It accounts for a large portion of the pollutants discharged by industry. The pollutants contained in the industrial wastewater vary widely according to different types of plants, and even if the same type of plants have different production processes, the quality and the quantity of the pollutants contained in the industrial wastewater are different. In addition to the pollution caused by the direct injection of the discharged wastewater into the water body, the industry also pollutes the water body by solid waste and waste gas.

Agricultural pollution is caused by that the soil surface is loosened by cultivation or wasteland, rainfall occurs when the soil and the terrain are not stable, a large amount of silt flows into water, and suspended matters in the water are increased.

The other important reason is that the using amount of pesticides and chemical fertilizers is increased day by day, only a small amount of the used pesticides and chemical fertilizers are attached or absorbed, and the majority of the rest pesticides and chemical fertilizers are remained in soil and float in the atmosphere, enter surface water through the washing of surface runoff through rainfall and permeate into the surface water to form pollution. The urban pollution source is caused by water body pollution caused by urban domestic sewage, garbage and waste gas due to urban population concentration. The pollution of urban pollution sources to water is mainly domestic sewage which is a mixed solution of various sewage produced in daily life of people, wherein the sewage comprises sewage discharged from kitchens, washing rooms, bathrooms and toilets.

Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.

The sewage treatment process in the prior art has the following problems: 1. the wastewater is not filtered before the wastewater is treated, so that the crystallization impurities in the later period are more, 2, and the whole structural equipment is too complex; 3. the resulting sludge is not recycled, resulting in a serious waste of sludge, and thus needs to be improved.

Disclosure of Invention

The invention aims to provide complete equipment for evaporation, crystallization, recovery and recycling of sewage treatment, so as to solve the problems of complex structure, ineffective recovery of sludge and low crystallization purity in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a complete set of equipment for sewage treatment, evaporation, crystallization, recovery and reutilization comprises a wastewater storage chamber, wherein a chemical sedimentation tank is arranged below the wastewater storage chamber, a top liquid discharge port of the chemical sedimentation tank is connected with an oil-water separator, a sludge treatment device is connected to a lower slag discharge port of the chemical sedimentation tank, the output of the oil-water separator is connected with a falling-film evaporator, a steam outlet of the falling-film evaporator is connected with a separator, a secondary steam outlet of the separator is connected with a first compressor, the output of the first compressor is sequentially connected with a first heater, a primary filtering device is hinged above the wastewater storage chamber and comprises a funnel-shaped filtering port and a temporary storage bin positioned below the filtering port, a first filtering net is detachably connected below the temporary storage bin, and a liquid inlet communicated with the first filtering net is arranged at the upper end of the wastewater storage chamber, the side in interim storage storehouse is rotated through first pivot and is connected on the waste water apotheca, is equipped with the rotatory first motor of drive first pivot in the top in interim storage storehouse, is equipped with buffer passage between chemical precipitation pond and waste water apotheca, the output of first heater is connected with the crystallization holding vessel, is equipped with the material mechanism that blows in the crystallization holding vessel with the crystallization in the top of second heater, has the second compressor at the output connection of silt treater, is connected with oil water separator at the liquid delivery outlet of second compressor, the solid delivery outlet of second compressor collects the mouth as fertilizer, oil water separator's below is equipped with the oil storage storehouse, is equipped with the oil drain port at oil storage storehouse side.

Further, the crystallization holding vessel include bilayer structure, be equipped with the coolant liquid pipeline of circulation setting in the outer cavity of crystallization holding vessel, a coolant liquid apotheca is connected to the output of coolant liquid pipeline, the input of coolant liquid pipeline is connected through the second pump to the output of coolant liquid apotheca.

Furthermore, the output of the sludge treater is sequentially connected with a high-efficiency filter tank, a cloth filter tank and a disinfection tank, wherein the bottom outputs of the high-efficiency filter tank and the cloth filter tank are both the second compressor, and the output port of the disinfection tank is connected with the falling film evaporator.

Further, the output of the chemical sedimentation tank is connected with a secondary sedimentation tank.

Further, the output of the secondary sedimentation tank is connected with the second compressor.

Further, the other side of first filter screen passes through the opposite side of the mode connection in the storehouse below of temporarily storing of lock.

Further, a medicine inlet is formed in the upper portion of the chemical precipitation tank, a stirring mechanism is arranged in the chemical precipitation tank, and a weighing mechanism is arranged in the medicine inlet.

Further, the falling film evaporator comprises a primary falling film evaporator, a secondary falling film evaporator and a tertiary falling film evaporator which are arranged in sequence.

The invention provides a complete set of equipment for treating, evaporating, crystallizing and recycling sewage, which is obtained by collecting and sending the sewage into a waste water storage chamber 1, primarily filtering medical waste water through an upper primary filtering device 11 in the early stage in the conveying process, temporarily storing generated impurities in a temporary storage bin 14 of the primary filtering device 11, allowing the filtered sewage to flow into a lower waste water storage chamber 1 through a first filter screen 15, then entering a chemical precipitation tank 2 for adding liquid medicine for precipitation, filtering out organic matters and impurities in the medicines, then sending the filtered sewage into an oil-water separator 3 for oil-water separation, then sending the sewage into an evaporator 4 for heating and evaporation, then primarily separating the sewage through a separator 5, compressing generated secondary steam by a first compressor 6 to increase the pressure, then sending the compressed secondary steam into a first heater 7 for heating and crystallizing, and send into crystallization storage tank 20 in with the crystallization through blowing material mechanism 21, silt sends into second compressor 9 after carrying out sterilization filtration treatment through silt treater 8 simultaneously and compresses, the liquid that the compression produced sends into oil water separator 3 and retrieves, and solid form silt collects mouth 28 as the later stage waste material from fertilizer, consequently realize retrieving the evaporation crystallization of sewage through above-mentioned structural design, silt also can be retrieved in step simultaneously, recycle, finally realize that the structure is complicated, effectively not retrieve silt, through the high advantage of filtration improvement crystallization purity.

Drawings

FIG. 1 is a schematic diagram of the complete equipment for evaporation, crystallization, recovery and reuse in sewage treatment in the embodiment 1;

FIG. 2 is a schematic diagram of the complete equipment for recycling and reusing of evaporative crystallization in sewage treatment in this example 2;

FIG. 3 is a schematic diagram of the complete equipment for recycling and reusing of evaporative crystallization in sewage treatment in this example 3;

FIG. 4 is a schematic diagram of the complete equipment for recycling and reusing of evaporative crystallization in sewage treatment in this example 4;

FIG. 5 is a schematic diagram of the complete equipment for evaporation, crystallization, recovery and reuse in the wastewater treatment of example 5.

In the figure: the system comprises a waste water storage chamber 1, a chemical precipitation tank 2, an oil-water separator 3, a falling-film evaporator 4, a separator 5, a first compressor 6, a first heater 7, a sludge processor 8, a second compressor 9, a high-pressure pump 10, a primary filtering device 11, a first rotating shaft 12, a filtering port 13, a temporary storage bin 14, a first filtering net 15, a liquid inlet 16, a first motor 18, a buffer channel 19, a crystallization storage tank 20, a blowing mechanism 21, a cooling liquid pipeline 22, a cooling liquid storage chamber 23, a second pump 24, a high-efficiency filtering tank 25, a cloth filter 26, a secondary precipitation tank 27, a fertilizer collection port 28, a medicine inlet 29, a stirring mechanism 30, a weighing mechanism 31, an oil storage bin 32, an oil discharge port 33, a disinfection tank 34, a primary falling-film evaporator 4-1, a secondary falling-film evaporator 4-2 and a tertiary falling-film evaporator 4-3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1, the present embodiment provides a complete set of equipment for evaporation, crystallization, recovery and recycling of sewage, which comprises a waste water storage chamber 1, a chemical precipitation tank 2 is arranged below the waste water storage chamber 1, an upper liquid discharge port of the chemical precipitation tank 2 is connected with an oil-water separator 3, a lower slag discharge port of the chemical precipitation tank 2 is connected with a sludge processor 8, an output of the oil-water separator 3 is connected with a falling-film evaporator 4, a steam outlet of the falling-film evaporator 4 is connected with a separator 5, a secondary steam outlet of the separator 5 is connected with a first compressor 6, an output of the first compressor 6 is sequentially connected with a first heater 7, a primary filtering device 11 is hinged above the waste water storage chamber 1, the primary filtering device 11 comprises a funnel-shaped filtering port 13 and a temporary storage bin 14 located below the filtering port 13, a first filter screen 15 is detachably connected with the lower part of the temporary storage bin 14, a liquid inlet 16 which is communicated with the first filter screen 15 is arranged at the upper end of the waste water storage chamber 1, the side edge of the temporary storage bin 14 is rotationally connected on the waste water storage chamber 1 through a first rotating shaft 12, a first motor 18 which drives the first rotating shaft 12 to rotate is arranged above the temporary storage bin 14, a buffer channel 19 is arranged between the chemical sedimentation tank 2 and the waste water storage chamber 1, the output of the first heater 7 is connected with a crystallization storage tank 20, a material blowing mechanism 21 which blows the crystallization into the crystallization storage tank 20 is arranged above the second heater 8, a second compressor 9 is connected with the output of the sludge processor 8, a liquid output port of the second compressor 9 is connected with the oil-water separator 3, and a solid output port of the second compressor 9 is used as a fertilizer collecting port 28, an oil storage bin 32 is arranged below the oil-water separator 3, and an oil discharge port 33 is arranged on the side edge of the oil storage bin 32.

Further, the other side of the first filter screen 15 is connected to the other side below the temporary storage bin 14 in a buckling manner.

Further, the crystallization storage tank 20 comprises a double-layer structure, a cooling liquid pipeline 22 is arranged in the outer-layer cavity of the crystallization storage tank 20 in a circulating mode, an output end of the cooling liquid pipeline 22 is connected with a cooling liquid storage chamber 23, and an output end of the cooling liquid storage chamber 23 is connected with an input end of the cooling liquid pipeline 22 through a second pump 24.

During operation, sewage is collected and sent into the waste water storage chamber 1, medical waste water is primarily filtered through the primary filtering device 11 above in the early stage in the conveying process, generated impurities are temporarily stored in the temporary storage bin 14 of the primary filtering device 11, the filtered sewage flows into the waste water storage chamber 1 below through the first filter screen 15, then the sewage enters the chemical precipitation tank 2 to be added with liquid medicine for precipitation, organic matters and impurities in the medicine are filtered out, then the sewage is sent into the oil-water separator 3 to be subjected to oil-water separation, then the sewage is sent into the evaporator 4 to be heated and evaporated, then primary separation is carried out through the separator 5, generated secondary steam is compressed by the first compressor 6 to increase pressure and then sent into the first heater 7 to be heated to generate crystallization, and the crystallization is sent into the crystallization storage tank 20 through the blowing mechanism 21, simultaneously silt sends into second compressor 9 after carrying out sterilization filtration treatment through silt treater 8 and compresses, and the liquid that the compression produced sends into oil water separator 3 and retrieves, and solid form silt collects mouth 28 as the later stage waste material from the fertilizer, consequently realizes retrieving the evaporation crystallization of sewage through above-mentioned structural design, and silt also can be retrieved in step simultaneously, recycles, finally realizes that the structure is complicated, effectively not retrieve silt, improves the advantage that crystallization purity is high through filtering.

Example 2:

referring to fig. 2, the present embodiment provides a complete set of equipment for evaporation, crystallization, recycling and reuse of sewage treatment, further, an efficient filtering tank 25, a cloth filter 26 and a disinfection tank 34 are sequentially connected to an output of the sludge processor 8, wherein the bottom outputs of the efficient filtering tank 25 and the cloth filter 26 are respectively the second compressor 9, an output port of the disinfection tank 34 is connected to the falling film evaporator 4, and the filtering and sterilizing effects are improved by the sequentially arranged efficient filtering tank 25, the cloth filter 26 and the disinfection tank 34.

Example 3:

referring to fig. 3, the present embodiment provides a complete set of equipment for evaporation, crystallization, recycling and reuse of sewage treatment, further, a secondary sedimentation tank 27 is connected to the output of the chemical sedimentation tank 2, and the secondary sedimentation tank 27 is arranged to improve the filtering effect.

Further, the output of the secondary sedimentation tank 27 is connected with the second compressor 9.

Example 4:

referring to fig. 4, the present embodiment provides a complete set of equipment for evaporation, crystallization, recycling and reuse of sewage treatment, further, a drug inlet 29 is disposed above the chemical precipitation tank 2, a stirring mechanism 30 is disposed in the chemical precipitation tank 2, a weighing mechanism 31 is disposed in the drug inlet 29, the drug solution is weighed by the weighing mechanism 31, and the drug solution is stirred by the stirring mechanism 30.

Example 5:

referring to fig. 5, the present embodiment provides a complete set of equipment for evaporation, crystallization, recovery and recycling of sewage treatment, further, the falling-film evaporator 4 includes a primary falling-film evaporator 4-1, a secondary falling-film evaporator 4-2 and a tertiary falling-film evaporator 4-3, which are sequentially arranged, and the primary falling-film evaporator 4-1 is arranged to perform primary evaporation on the sewage material with primary temperature rise to generate a concentrated solution and secondary steam; the secondary falling film evaporator 4-2 continues to evaporate and concentrate the concentrated solution; and the triple falling-film evaporator 4-3 carries out triple evaporation, so that the final efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sewage treatment evaporation crystallization recovery utilizes complete sets, includes waste water apotheca (1), its characterized in that: a chemical sedimentation tank (2) is arranged below the waste water storage chamber (1), an upper liquid discharge port of the chemical sedimentation tank (2) is connected with an oil-water separator (3), a lower slag discharge port of the chemical sedimentation tank (2) is connected with a sludge processor (8), the output of the oil-water separator (3) is connected with a falling-film evaporator (4), a steam outlet of the falling-film evaporator (4) is connected with a separator (5), a secondary steam outlet of the separator (5) is connected with a first compressor (6), the output of the first compressor (6) is sequentially connected with a first heater (7), a primary filtering device (11) is hinged above the waste water storage chamber (1), the primary filtering device (11) comprises a funnel-shaped filtering port (13) and a temporary storage bin (14) positioned below the filtering port (13), a first filtering screen (15) is detachably connected below the temporary storage bin (14), a liquid inlet (16) which is communicated with a first filter screen (15) is arranged at the upper end of the waste water storage chamber (1), the side edge of the temporary storage bin (14) is rotationally connected to the waste water storage chamber (1) through a first rotating shaft (12), a first motor (18) which drives the first rotating shaft (12) to rotate is arranged above the temporary storage bin (14), a buffer channel (19) is arranged between the chemical sedimentation tank (2) and the waste water storage chamber (1), the output of the first heater (7) is connected with a crystal storage tank (20), a material blowing mechanism (21) which blows crystals into the crystal storage tank (20) is arranged above the second heater (8), the output of the sludge processor (8) is connected with a second compressor (9), the liquid output of the second compressor (9) is connected with the oil-water separator (3), the solid output of the second compressor (9) is used as a fertilizer collection port (28), an oil storage bin (32) is arranged below the oil-water separator (3), and an oil discharge port (33) is arranged on the side edge of the oil storage bin (32).

2. The complete equipment for evaporation, crystallization, recycling and reuse in sewage treatment according to claim 1, wherein: crystallization holding vessel (20) include bilayer structure, be equipped with the coolant liquid pipeline (22) that the circulation set up in the outer cavity of crystallization holding vessel (20), a coolant liquid apotheca (23) is connected to the output of coolant liquid pipeline (22), the input of coolant liquid pipeline (22) is connected through second pump (24) in the output of coolant liquid apotheca (23).

3. The wastewater treatment evaporation crystallization recycling complete equipment according to claim 1 or 2, characterized in that: the output of the sludge treater (8) is sequentially connected with a high-efficiency filter tank (25), a cloth filter tank (26) and a disinfection tank (34), wherein the bottom outputs of the high-efficiency filter tank (25) and the cloth filter tank (26) are all the second compressor (9), and the output port of the disinfection tank (34) is connected with the falling film evaporator (4).

4. The complete equipment for evaporation, crystallization, recycling and reuse in sewage treatment according to claim 1, wherein: the output of the chemical sedimentation tank (2) is connected with a secondary sedimentation tank (27).

5. The complete equipment for evaporation, crystallization, recycling and reuse in sewage treatment according to claim 5, wherein: the output of the secondary sedimentation tank (27) is connected with the second compressor (9).

6. The complete equipment for evaporation, crystallization, recycling and reuse in sewage treatment according to claim 1, wherein: the other side of the first filter screen (15) is connected with the other side below the temporary storage bin (14) in a buckling mode.

7. The complete equipment for evaporation, crystallization, recycling and reuse in sewage treatment according to claim 1, wherein: a medicine inlet (29) is arranged above the chemical sedimentation tank (2), a stirring mechanism (30) is arranged in the chemical sedimentation tank (2), and a weighing mechanism (31) is arranged in the medicine inlet (29).

8. The complete equipment for evaporation, crystallization, recycling and reuse in sewage treatment according to claim 1, wherein: the falling-film evaporator (4) comprises a primary falling-film evaporator (4-1), a secondary falling-film evaporator (4-2) and a tertiary falling-film evaporator (4-3) which are arranged in sequence.