CN114656004B - Sewage treatment device and sewage treatment method based on vacuum evaporation - Google Patents
Sewage treatment device and sewage treatment method based on vacuum evaporation Download PDFInfo
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- CN114656004B CN114656004B CN202210310728.9A CN202210310728A CN114656004B CN 114656004 B CN114656004 B CN 114656004B CN 202210310728 A CN202210310728 A CN 202210310728A CN 114656004 B CN114656004 B CN 114656004B
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- 239000010865 sewage Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000007738 vacuum evaporation Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
- 238000001704 evaporation Methods 0.000 claims abstract description 95
- 230000008020 evaporation Effects 0.000 claims abstract description 79
- 238000007599 discharging Methods 0.000 claims abstract description 37
- 239000012535 impurity Substances 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims description 63
- 238000003756 stirring Methods 0.000 claims description 49
- 238000007789 sealing Methods 0.000 claims description 28
- 238000009835 boiling Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 210000003437 trachea Anatomy 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 6
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a sewage treatment device and a sewage treatment method based on vacuum evaporation, belonging to the technical field of sewage treatment, and comprising a bottom plate, wherein a discharging mechanism is used for discharging impurities evaporated from an evaporation box under the condition of keeping the vacuum in the evaporation box, and simultaneously reducing the loss of heat in the evaporation box; a collecting mechanism is arranged at the bottom of the left side of the evaporation box and used for collecting impurities discharged by the discharging mechanism; the upper end of the bottom plate is fixedly connected with a water collecting tank, the upper end of the water collecting tank is provided with a drainage mechanism, and the drainage mechanism is used for discharging evaporated water into the water collecting tank in a vacuum environment; the device can get rid of the impurity in the sewage totally under the environment that keeps the interior vacuum of evaporating box, can prevent effectively that the external air of in-process of arranging the material from entering into the evaporating box and influencing the evaporation effect of evaporating box, can also reduce thermal scattering and disappearing in the evaporating box effectively at the in-process of arranging the material simultaneously, has played the effect of energy saving.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device and a sewage treatment method based on vacuum evaporation.
Background
The sewage treatment is a process for purifying sewage in order to make the sewage meet the water quality requirement of a certain water body or reuse. Sewage treatment is widely applied to various fields such as construction, 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 upstream suppliers of the sewage treatment industry are mainly manufacturers of sewage treatment plants and sewage treatment chemical suppliers. Belongs to the industries with fast development and good demand condition.
Because the boiling point of water is reduced in vacuum, the sewage can be heated at a lower temperature to boil the sewage when the sewage is placed in a vacuum environment, and water vapor generated by boiling the sewage can be liquefied after being condensed; after the sewage evaporation finishes, remaining impurity in the sewage needs the clean up, when clearing up these impurity, the evaporation instrument of need opening usually, then clearing up impurity, when opening the evaporation instrument, the environment of vacuum will disappear in the evaporation instrument, the inside heat of evaporation instrument also can loose simultaneously, after the impurity clearance in the evaporation instrument is accomplished, need take out the air in the evaporation instrument again, then heat, so then can cause the waste on the energy, thereby the cost of sewage treatment has been promoted.
Based on the above, the invention designs a sewage treatment device and a sewage treatment method based on vacuum evaporation to solve the above problems.
Disclosure of Invention
The invention aims to provide a sewage treatment device and a sewage treatment method based on vacuum evaporation, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a sewage treatment device and a sewage treatment method based on vacuum evaporation comprise a bottom plate and are characterized in that: the upper end of the bottom plate is fixedly connected with a first fixing frame, an evaporation box is fixedly connected inside the first fixing frame, and the bottom end of the evaporation box is connected with a heating cylinder in a sealing and sliding manner; a discharging mechanism is arranged in the evaporation box and is used for discharging impurities evaporated from the evaporation box under the condition of keeping the vacuum in the evaporation box and reducing the heat loss in the evaporation box; a collecting mechanism is arranged at the bottom of the left side of the evaporation box and used for collecting impurities discharged by the discharging mechanism; the water collecting tank is fixedly connected to the upper end of the bottom plate, a water discharging mechanism is arranged at the upper end of the water collecting tank, and the water discharging mechanism is used for discharging evaporated water into the water collecting tank in a vacuum environment.
The discharging mechanism comprises a fixed plate, the fixed plate is fixedly connected with the evaporation box, a first air cylinder is fixedly connected inside a first fixed frame, the bottom end of the first air cylinder is fixedly connected with a first motor, the bottom end of an output shaft of the first motor is fixedly connected with a rotating frame, the upper side and the lower side of the inside of the rotating frame are respectively and rotatably connected with a rotating rod and a rotating cylinder, the rotating rod is located inside the rotating cylinder, and the rotating rod is rotatably connected with the rotating cylinder; the bottom ends of the rotating cylinder and the rotating rod are respectively and fixedly connected with a first stirring rod and a second stirring rod, the surface of the first stirring rod is connected with a fifth threaded rod in a sliding mode, and the bottom end of the fifth threaded rod is fixedly connected with an arc-shaped scraper; the bottom end of the second stirring rod is fixedly connected with a top block, and the top block is rotationally connected with the surface of the bottom end of the heating cylinder; the surface of the first stirring rod is provided with a first driving mechanism, and the first driving mechanism is used for driving the arc-shaped scraper to move to a position contacted with the bottom end of the heating cylinder after the sewage evaporation is finished; the surface of the rotating frame is provided with a locking mechanism, and the locking mechanism is used for locking the rotating rod and the rotating cylinder on the surface of the rotating frame to prevent the rotating rod and the rotating cylinder from rotating relative to the rotating frame.
The locking mechanism comprises two first sliding blocks, and the two first sliding blocks are connected with the evaporation box in a sliding manner; a second fixing frame is arranged in the evaporation box, the second fixing frame is fixedly connected with the two first sliding blocks at the same time, and a first threaded rod is fixedly connected inside the second fixing frame; a first bevel gear is rotatably connected to the front end position in the rotating frame, a second bevel gear and a first bevel gear ring are respectively meshed to the upper side and the lower side of the surface of the first bevel gear, the second bevel gear is fixedly connected with the rotating rod, and the first bevel gear ring is fixedly connected with the rotating cylinder; a worm is rotatably connected to the front position of the surface of the rotating frame, the worm is in threaded fit with the first threaded rod, a worm wheel is meshed with the surface of the worm, and the worm wheel is fixedly connected with the first bevel gear; the first threaded rod is a threaded rod without self-locking property.
The first driving mechanism comprises a first gear, the first gear is rotationally connected with the first stirring rod, the surface of the first gear is fixedly connected with a third bevel gear, the surface of the third bevel gear is meshed with a second bevel gear ring, the second bevel gear ring is rotationally connected with the first stirring rod, and the second bevel gear ring is in threaded fit with the fifth threaded rod; an arc-shaped rack is arranged at the bottom end of the first gear, the arc-shaped rack is fixedly connected with the second stirring rod, and the first gear is meshed with the arc-shaped rack.
The collecting mechanism comprises two third fixing frames which are respectively and fixedly connected with the surfaces of the front end and the rear end of the heating cylinder; a sliding plate is arranged at the bottom end of the heating cylinder, the sliding plate is connected with third fixing frames on the front side and the rear side in a sliding mode, a fixing frame is fixedly connected to the surface of the left end of the sliding plate, a collecting barrel is arranged in the fixing frame, the collecting barrel is in clearance fit with the fixing frame, and a first joint is fixedly connected to the upper end of the collecting barrel; the surface of the left end of the heating cylinder is fixedly connected with a second joint, and the first joint is clamped and matched with the second joint; a first sealing plate and a second sealing plate are respectively connected in the first joint and the second joint in a sealing and sliding manner, the upper ends of the first sealing plate and the second sealing plate are respectively fixedly connected with a first spring and a second spring, and the other ends of the first spring and the second spring are respectively fixedly connected with the first joint and the heating cylinder; the bottom end of the left side of the first fixing frame is fixedly connected with a telescopic rod, the bottom end of the telescopic rod is fixedly connected with a connecting frame, and the connecting frame is simultaneously attached to the bottom end surfaces of the first sealing plate and the second sealing plate; the surface of the right end of the third fixing frame is rotatably connected with a second threaded rod, the sliding plate is in threaded fit with the second threaded rod, the right end of the second threaded rod is fixedly connected with a second gear, the surface of the second gear is meshed with a first rack, and the first rack is fixedly connected with the water collecting tank.
The water drainage mechanism comprises a condensation pipe, the condensation pipe is fixedly connected with the upper end of the evaporation tank, the bottom end of the condensation pipe is fixedly connected with a water collecting tank, the upper side and the lower side of the inside of the water collecting tank are respectively provided with a water baffle and a water drainage plate, and the water baffle and the water drainage plate are both in sliding connection with the water collecting tank; the water baffle is positioned at the upper end in the water collecting tank, the sliding direction in the water collecting tank is the left-right direction, and the sliding direction of the drainage plate in the water collecting tank is the up-down direction; the bottom end of the drainage plate is fixedly connected with a one-way valve, and the flow direction of the one-way valve is downward; and a second driving mechanism is arranged on the surface of the water collecting tank and is used for driving the water baffle and the drainage plate to slide in the water collecting tank.
The second driving mechanism comprises a second motor, the second motor is fixedly connected with the water collecting tank, and the upper end of an output shaft of the second motor is fixedly connected with a first synchronous wheel; a fourth fixing frame is fixedly connected to the upper end of the water collecting tank, third threaded rods are symmetrically and rotatably connected to the left side and the right side of the upper end of the fourth fixing frame, the upper ends of the third threaded rods are in threaded fit with pushing frames, second synchronizing wheels are fixedly connected to the bottoms of the third threaded rods, and synchronous belts are meshed with the surfaces of the first synchronizing wheels and the surfaces of the two second synchronizing wheels; the third threaded rod is a threaded rod with self-locking property; the upper end of the pushing frame is fixedly connected with the drainage plate; the front side and the rear side of the surface of the left end of the water collecting tank are symmetrically provided with sliding grooves, the front end and the rear end of the right side of the water collecting tank are symmetrically provided with clamping grooves, the sliding grooves are connected with a second rack in a sliding mode, the front end and the rear end of the second rack at the rear end are respectively connected with a circular clamping block in a sliding mode, the surface of the circular clamping block is fixedly connected with a third spring, and the other end of the third spring is fixedly connected with the second rack; the circular clamping block is clamped and matched with the clamping groove; a push rod is fixedly connected to the upper end of the right side of the pushing frame, the push rod is connected with the second rack in a sliding mode, a fourth spring is fixedly connected to the upper end of the push rod, and the upper end of the fourth spring is fixedly connected with the second rack; the inside front and back both sides position symmetry of header tank upside is rotated and is had the fourth threaded rod, fourth threaded rod and breakwater screw-thread fit and fourth threaded rod right-hand member fixed surface are connected with the third gear, third gear and second rack meshing.
Bottom plate upper end right side position fixedly connected with exhaust-gas treatment case, exhaust-gas treatment case upper end fixedly connected with trachea, trachea upper end fixedly connected with aspiration pump, aspiration pump and condenser pipe fixed connection.
The method comprises the following specific steps:
the method comprises the following steps: starting the heating cylinder to heat the sewage in the evaporation box to a boiling state;
step two: the water vapor enters the condensation pipe to be liquefied and enters the water collecting tank, and the second driving mechanism is started to discharge the water in the water collecting tank;
step three: after the sewage is evaporated, starting a discharging mechanism and a collecting mechanism;
step four: the collecting mechanism is butted with the heating cylinder, and the discharging mechanism discharges the impurities evaporated from the sewage into the collecting mechanism;
step five: after discharging is completed, the collecting mechanism is separated from the heating cylinder, and the heating cylinder is reset.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, after the sewage in the evaporation box is heated to a boiling state by the heating cylinder, the sewage is changed into water vapor and finally condensed into clean water, and the water condensed by the water vapor can be discharged under the vacuum environment in the evaporation box through the drainage mechanism, so that the water is drained while air is prevented from entering the evaporation box, and the evaporation effect of the evaporation box is kept; when the evaporation of the sewage in the evaporation box is finished, the discharging mechanism and the collecting mechanism are started, the discharging mechanism can drive the heating cylinder to move downwards when the discharging mechanism is started, meanwhile, the collecting mechanism starts to move towards the direction close to the heating cylinder, and when the collecting mechanism is butted with the heating cylinder, the discharging mechanism can start to discharge impurities at the bottom of the heating cylinder into the collecting mechanism; the device can get rid of the impurity in the sewage totally under the environment that keeps the interior vacuum of evaporating box, can prevent effectively that the external air of in-process of arranging the material from entering into the evaporating box and influencing the evaporation effect of evaporating box, can also reduce the thermal scattering and disappearing in the evaporating box effectively at the in-process of arranging the material simultaneously, has played the effect of energy saving.
2. In the process of evaporating sewage, when the motor drives the first stirring rod and the second stirring rod to rotate, the speed and the effect of evaporating sewage can be effectively improved, and meanwhile, in the process of rotating and stirring the first stirring rod and the second stirring rod, the arc-shaped scraper blade is not contacted with the bottom end surface of the heating cylinder, so that impurities in the sewage can be prevented from being scraped to the inner edge position of the heating cylinder by the arc-shaped scraper blade to be accumulated together, and when the impurities are accumulated together, the sewage in the impurities can be evaporated by the device; after the sewage evaporation finishes, the arc scraper blade moves to the position of surface contact with the bottom end of the heating cylinder, and at the moment, impurities can be cleaned when the arc scraper blade rotates, so that the speed and the effect of sewage evaporation treatment can be effectively improved.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2;
FIG. 4 is a schematic view showing a disassembled structure of the evaporation box 3 according to the present invention;
FIG. 5 is an enlarged view of B in FIG. 4;
FIG. 6 is a schematic structural diagram of a first driving mechanism according to the present invention;
FIG. 7 is a schematic view of the structure of the water collection tank according to the present invention;
FIG. 8 is an enlarged view of C in FIG. 7;
FIG. 9 is an enlarged view of D in FIG. 7;
FIG. 10 is a schematic view showing the structure of a drainage mechanism according to the present invention;
FIG. 11 is a schematic structural view of a second driving mechanism according to the present invention;
fig. 12 is an enlarged schematic view of E in fig. 11.
In the drawings, the components represented by the respective reference numerals are listed below:
<xnotran> 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67. </xnotran>
Detailed Description
Referring to fig. 1-12, the present invention provides a technical solution: a sewage treatment device and a sewage treatment method based on vacuum evaporation comprise a bottom plate 1 and are characterized in that: the upper end of the bottom plate 1 is fixedly connected with a first fixing frame 2, the inside of the first fixing frame 2 is fixedly connected with an evaporation box 3, and the bottom end of the evaporation box 3 is hermetically and slidably connected with a heating cylinder 4; a discharging mechanism is arranged in the evaporation box 3 and is used for discharging impurities evaporated from the evaporation box 3 under the condition of keeping the vacuum in the evaporation box 3 and reducing the heat loss in the evaporation box 3; a collecting mechanism is arranged at the bottom of the left side of the evaporation box 3 and is used for collecting impurities discharged by the discharging mechanism; the upper end of the bottom plate 1 is fixedly connected with a water collecting tank 5, the upper end of the water collecting tank 5 is provided with a drainage mechanism, and the drainage mechanism is used for discharging evaporated water into the water collecting tank 5 in a vacuum environment;
when the device works, after the sewage is evaporated in vacuum, impurities in the sewage are developed along with the evaporated sewage, so that the impurities need to be cleaned after the sewage is evaporated; the device heats the sewage in the evaporation box 3 to a boiling state through the heating cylinder 4, the sewage can be changed into vapor and finally condensed into clean water, and the water condensed by the vapor can be discharged in the vacuum environment in the evaporation box 3 through the drainage mechanism, so that the water is drained, air can be prevented from entering the evaporation box 3, and the evaporation effect of the evaporation box 3 is kept; when the evaporation of the sewage in the evaporation box 3 is finished, the discharging mechanism and the collecting mechanism are started, the discharging mechanism can drive the heating cylinder 4 to move downwards when the discharging mechanism is started, meanwhile, the collecting mechanism starts to move towards the direction close to the heating cylinder 4, and when the collecting mechanism is in butt joint with the heating cylinder 4, the discharging mechanism can start to discharge impurities at the bottom of the heating cylinder 4 into the collecting mechanism; the device can be in keeping 3 interior vacuum environment of evaporating case under with the impurity of sewage get rid of totally, can prevent effectively that the external air of in-process of arranging the material from entering into evaporating case 3 and influencing evaporating case 3's evaporation effect, can also reduce the thermal scattering and disappearing in evaporating case 3 effectively at the in-process of arranging the material simultaneously, has played the effect of energy saving.
As a further scheme of the invention, the discharging mechanism comprises a fixed plate 6, the fixed plate 6 is fixedly connected with the evaporation box 3, a first cylinder 7 is fixedly connected inside a first fixed frame 2, the bottom end of the first cylinder 7 is fixedly connected with a first motor 8, the bottom end of an output shaft of the first motor 8 is fixedly connected with a rotating frame 9, the upper side and the lower side inside the rotating frame 9 are respectively and rotatably connected with a rotating rod 10 and a rotating cylinder 11, the rotating rod 10 is positioned inside the rotating cylinder 11, and the rotating rod 10 is rotatably connected with the rotating cylinder 11; the bottom ends of the rotating cylinder 11 and the rotating rod 10 are respectively and fixedly connected with a first stirring rod 12 and a second stirring rod 13, the surface of the first stirring rod 12 is connected with a fifth threaded rod 19 in a sliding manner, and the bottom end of the fifth threaded rod 19 is fixedly connected with an arc-shaped scraper 15; the bottom end of the second stirring rod 13 is fixedly connected with a top block 16, and the top block 16 is rotatably connected with the surface of the bottom end of the heating cylinder 4; the surface of the first stirring rod 12 is provided with a first driving mechanism, and the first driving mechanism is used for driving the arc-shaped scraper 15 to move to a position contacted with the bottom end of the heating cylinder 4 after the sewage evaporation is finished; the surface of the rotating frame 9 is provided with a locking mechanism, and the locking mechanism is used for locking the rotating rod 10 and the rotating cylinder 11 on the surface of the rotating frame 9 to prevent the rotating rod 10 and the rotating cylinder 11 from rotating relative to the rotating frame 9; when the device works, in the process of sewage evaporation, the first motor 8 is started to drive the rotating frame 9 to rotate, the rotating frame 9 can drive the whole rotating cylinder 11 and the rotating rod 10 to synchronously rotate under the action of the clamping mechanism, the rotating cylinder 11 and the rotating rod 10 respectively drive the first stirring rod 12 and the second stirring rod 13 to rotate, and the first stirring rod 12 and the second stirring rod 13 can promote the speed and the effect of sewage evaporation in the rotating and stirring process; after the sewage is evaporated, starting the first cylinder 7, driving the rotating frame 9, the first stirring rod 12 and the second stirring rod 13 to move downwards by the first cylinder 7, and driving the heating cylinder 4 to move downwards by the ejector block 16 when the second stirring rod 13 moves downwards; in the process that the rotating frame 9 moves downwards, the arc-shaped scraping plate 15 can be driven to move downwards to a position contacting with the bottom end of the heating cylinder 4 through the locking mechanism and the first driving mechanism, then the arc-shaped scraping plate 15 can be driven to rotate when the first motor 8 is started to drive the first stirring rod 12 to rotate, and impurities at the bottom end of the heating cylinder 4 can be scraped to the position of the edge of the heating cylinder 4 through the arc-shaped sliding plate; through when evaporating sewage, when first motor 8 drives first stirring rod 12 and second stirring rod 13 and rotates, arc scraper blade 15 does not contact with cartridge heater 4 to can avoid arc scraper blade 15 to scrape the impurity of sewage bottom to 4 border positions of cartridge heater and pile up together following first stirring rod 12 when rotating effectively, when the impurity in the sewage piles up together, can influence the moisture in the evaporation of evaporating chamber 3 evaporation pile up together impurity.
As a further scheme of the invention, the locking mechanism comprises two first sliding blocks 17, and both the two first sliding blocks 17 are connected with the evaporation box 3 in a sliding way; a second fixing frame 18 is arranged in the evaporation box 3, the second fixing frame 18 is fixedly connected with two first sliding blocks 17 at the same time, and a first threaded rod 14 is fixedly connected inside the second fixing frame 18; a first bevel gear 20 is rotatably connected at the front end position in the rotating frame 9, a second bevel gear 21 and a first bevel ring 22 are respectively meshed at the upper side and the lower side of the surface of the first bevel gear 20, the second bevel gear 21 is fixedly connected with the rotating rod 10, and the first bevel ring 22 is fixedly connected with the rotating cylinder 11; a worm 23 is rotatably connected to the front end position of the surface of the rotating frame 9, the worm 23 is in threaded fit with the first threaded rod 14, a worm wheel 24 is meshed with the surface of the worm 23, and the worm wheel 24 is fixedly connected with the first bevel gear 20; the first threaded rod 14 is a threaded rod without self-locking; during operation, when the first motor 8 drives the rotating frame 9 to rotate, the rotating frame 9 can drive the first bevel gear 20, the worm 23 and the worm wheel 24 inside the whole rotating frame 9 to rotate along with the rotating frame 9, when the worm 23 rotates along with the rotating frame 9, the worm 23 can drive the second fixing frame 18 and the first sliding block 17 to rotate in the evaporation box 3 through the first threaded rod 14, meanwhile, the worm wheel 24 is in a locking state under the action of the worm 23 and cannot rotate, the worm wheel 24 can lock the second bevel gear 21 and the first bevel gear ring 22 through the first bevel gear 20, and the rotating cylinder 11 and the rotating rod 10 can rotate along with the rotating frame 9 through the second bevel gear 21 and the first bevel gear ring 22.
As a further aspect of the present invention, the first driving mechanism includes a first gear 25, the first gear 25 is rotatably connected to the first stirring rod 12, a third bevel gear 26 is fixedly connected to a surface of the first gear 25, a second bevel gear ring 27 is engaged with a surface of the third bevel gear 26, the second bevel gear ring 27 is rotatably connected to the first stirring rod 12, and the second bevel gear ring 27 is in threaded engagement with the fifth threaded rod 19; an arc-shaped rack 28 is arranged at the bottom end of the first gear 25, the arc-shaped rack 28 is fixedly connected with the second stirring rod 13, and the first gear 25 is meshed with the arc-shaped rack 28; during operation, when the evaporation of the sewage in the evaporation tank 3 is finished, the first cylinder 7 is started to drive the first motor 8 and the rotating frame 9 to move downwards, the rotating frame 9 drives the first stirring rod 12 and the second stirring rod 13 to move downwards, and the second stirring rod 13 drives the heating cylinder 4 to move downwards through the top block 16; the rotating frame 9 drives the worm 23 on the surface to move downwards, the worm 23 starts to drive the worm wheel 24 to rotate under the action of the first threaded rod 14, the worm wheel 24 drives the first bevel gear 20 to rotate when rotating, the first bevel gear 20 drives the second bevel gear 21 and the first bevel ring 22 to rotate in different directions when rotating, the rotating cylinder 11 and the rotating rod 10 drive the first stirring rod 12 and the second stirring rod 13 to rotate in opposite directions respectively under the action of the second bevel gear 21 and the first bevel ring 22, the first gear 25 on the surface of the first stirring rod 12 drives the third bevel gear 26 to rotate under the action of the arc-shaped rack 28 on the surface of the second stirring rod 13, the second bevel ring 27 is driven to rotate when the third bevel gear 26 rotates, and the fifth threaded rod 19 is driven to move downwards on the surface of the first stirring rod 12 when the second bevel ring 27 rotates; when the heating cylinder 4 moves to the bottommost position, the fifth threaded rod 19 drives the arc-shaped scraper 15 to move downwards to a position in contact with the bottom end surface of the heating cylinder 4, and then the first motor 8 is started to drive the arc-shaped scraper 15 to rotate so as to scrape impurities at the bottom end of the heating cylinder 4 to the inner edge position of the heating cylinder 4 and stack the impurities.
As a further scheme of the present invention, the collecting mechanism includes two third fixing frames 29, and the two third fixing frames 29 are respectively and fixedly connected with the front and rear end surfaces of the heating cylinder 4; the bottom end of the heating cylinder 4 is provided with a sliding plate 30, the sliding plate 30 is slidably connected with third fixing frames 29 at the front side and the rear side, the surface of the left end of the sliding plate 30 is fixedly connected with a fixing frame 31, a collecting barrel 32 is arranged in the fixing frame 31, the collecting barrel 32 is in clearance fit with the fixing frame 31, and the upper end of the collecting barrel 32 is fixedly connected with a first joint 33; the surface of the left end of the heating cylinder 4 is fixedly connected with a second joint 34, and the first joint 33 is in clamping fit with the second joint 34; a first sealing plate 35 and a second sealing plate 36 are respectively connected in the first joint 33 and the second joint 34 in a sealing and sliding manner, a first spring 37 and a second spring 38 are respectively fixedly connected to the upper ends of the first sealing plate 35 and the second sealing plate 36, and the other ends of the first spring 37 and the second spring 38 are respectively fixedly connected with the first joint 33 and the heating cylinder 4; the bottom end of the left side of the first fixing frame 2 is fixedly connected with an expansion link 39, the bottom end of the expansion link 39 is fixedly connected with a connecting frame 40, and the connecting frame 40 is simultaneously attached to the bottom end surfaces of the first sealing plate 35 and the second sealing plate 36; a second threaded rod 41 is rotatably connected to the surface of the right end of the third fixing frame 29, the sliding plate 30 is in threaded fit with the second threaded rod 41, a second gear 42 is fixedly connected to the right end of the second threaded rod 41, a first rack 43 is meshed with the surface of the second gear 42, and the first rack 43 is fixedly connected with the water collecting tank 5; during operation, when the heating cylinder 4 moves downwards, the third fixing frame 29 is driven to move downwards, the sliding plate 30 and the fixing frame 31 are driven to move downwards by the third fixing frame 29, and when the fixing frame 31 moves downwards, the collecting barrel 32 in the fixing frame 31 also moves downwards along with the fixing frame 31; when the third fixing frame 29 moves downwards, the second threaded rod 41 is driven to move downwards, the second threaded rod 41 drives the second gear 42 to move downwards, the second gear 42 drives the second threaded rod 41 to rotate under the action of the first rack 43, the second threaded rod 41 drives the sliding plate 30 to slide rightwards in the third fixing frame 29 when rotating, the sliding plate 30 drives the fixing frame 31 and the collecting barrel 32 to move rightwards, when the collecting barrel 32 moves rightwards to a certain extent, the first joint 33 on the surface of the collecting barrel 32 is connected with the second joint 34 on the surface of the heating barrel 4, at the moment, the heating barrel 4 continues to move downwards, the collecting barrel 32 does not move rightwards any more, at the moment, the telescopic rod 39 is pulled downwards to the maximum length, then when the heating barrel 4 and the collecting barrel continue to move downwards, the first sealing plate 35 and the second sealing plate 36 are pulled apart by the connecting frame 40 at the moment, the collecting barrel 32 is communicated with the heating barrel 4, and then impurities in the heating barrel 4 can be discharged into the collecting barrel 32 through the discharging mechanism; after the impurities are removed completely, the heating cylinder 4 drives the collecting cylinder 32 to move upwards to reset, when the heating cylinder 4 and the collecting cylinder 32 move upwards, the connecting frame 40 loosens the first sealing plate 35 and the second sealing plate 36, under the action of the first spring 37 and the second spring 38, the first sealing plate 35 and the second sealing plate 36 respectively seal the collecting cylinder 32 and the heating cylinder 4, after the collecting cylinder 32 and the heating cylinder 4 are sealed, the heating cylinder 4 drives the collecting cylinder 32 to continue to move upwards, and at the moment, the collecting cylinder 32 moves leftwards while moving upwards to be separated from the heating cylinder 4.
As a further scheme of the invention, the drainage mechanism comprises a condensation pipe 44, the condensation pipe 44 is fixedly connected with the upper end of the evaporation tank 3, the bottom end of the condensation pipe 44 is fixedly connected with a water collecting tank 45, the upper side and the lower side of the interior of the water collecting tank 45 are respectively provided with a water baffle 46 and a drainage plate 47, and the water baffle 46 and the drainage plate 47 are both connected with the water collecting tank 45 in a sliding manner; the water baffle 46 is positioned at the upper end position in the water collection tank 45, the sliding direction in the water collection tank 45 is the left-right direction, and the sliding direction of the drainage plate 47 in the water collection tank 45 is the up-down direction; the bottom end of the drainage plate 47 is fixedly connected with a one-way valve 48, and the flow direction of the one-way valve 48 is downward; the surface of the water collecting tank 5 is provided with a second driving mechanism which is used for driving the water baffle 46 and the drainage plate 47 to slide in the water collecting tank 45; during operation, when the vapor in the evaporation tank 3 enters the condensation pipe 44 to be liquefied, the liquefied water flows into the water collection tank 45 at the bottom of the condensation pipe 44, when the water in the water collection tank 45 is filled, the water baffle plate 46 is driven by the second driving mechanism to move rightwards to seal the water collection tank 45 and the condensation pipe 44, then the water drainage plate 47 is driven to move upwards, the check valve 48 on the surface of the water drainage plate 47 can be jacked open by the water in the water collection tank 45 when the water drainage plate 47 moves upwards, and the water in the water collection tank 45 can directly flow into the water collection tank 5.
As a further scheme of the invention, the second driving mechanism comprises a second motor 49, the second motor 49 is fixedly connected with the water collecting tank 5, and the upper end of an output shaft of the second motor 49 is fixedly connected with a first synchronizing wheel 50; the upper end of the water collecting tank 5 is fixedly connected with a fourth fixing frame 51, the left side and the right side of the upper end of the fourth fixing frame 51 are symmetrically and rotatably connected with a third threaded rod 52, the upper end of the third threaded rod 52 is in threaded fit with a pushing frame 53, the bottom end of the third threaded rod 52 is fixedly connected with a second synchronizing wheel 54, and the surfaces of the first synchronizing wheel 50 and the two second synchronizing wheels 54 are respectively meshed with a synchronous belt 55; the third threaded rod 52 is a threaded rod having self-locking properties; the upper end of the pushing frame 53 is fixedly connected with the drainage plate 47; the front side and the rear side of the surface of the left end of the water collecting tank 45 are symmetrically provided with sliding grooves 56, the front side and the rear side of the right side of the water collecting tank 45 are symmetrically provided with clamping grooves 57, the sliding grooves 56 are connected with second racks 58 in a sliding manner, the front end and the rear end of the second racks 58 at the front end and the rear end are respectively connected with a circular clamping block 59 in a sliding manner, the surface of the circular clamping block 59 is fixedly connected with a third spring 60, and the other end of the third spring 60 is fixedly connected with the second racks 58; the circular clamping block 59 is in clamping fit with the clamping groove 57; a push rod 61 is fixedly connected to the upper end of the right side of the push frame 53, the push rod 61 is slidably connected with the second rack 58, a fourth spring 62 is fixedly connected to the upper end of the push rod 61, and the upper end of the fourth spring 62 is fixedly connected with the second rack 58; the front side and the rear side of the inner part of the upper side of the water collecting tank 45 are symmetrically provided with fourth threaded rods 63 in a rotating mode, the fourth threaded rods 63 are in threaded fit with the water baffle 46, the surface of the right end of each fourth threaded rod 63 is fixedly connected with a third gear 64, and the third gears 64 are meshed with the second racks 58; when the water collecting tank 45 is full of water, the pushing frame 53 drives the drainage plate 47 to be located at the bottom in the water collecting tank 45, the circular clamping block 59 on the surface of the second rack 58 is clamped with the clamping groove 57 on the upper side of the surface of the water collecting tank 45, the push rod 61 on the surface of the pushing frame 53 applies a downward force to the second rack 58 through the fourth spring 62, the water baffle 46 is located at the left side in the water collecting tank 45, the second motor 49 is started, the second motor 49 drives the first synchronizing wheel 50 to rotate, the first synchronizing wheel 50 drives the second synchronizing wheel 54 to rotate through the synchronous belt 55, the second synchronizing wheel 54 drives the third threaded rod 52 to rotate, the third threaded rod 52 drives the pushing frame 53 to move downwards for a distance when rotating, the pushing frame 53 pulls the fourth spring 62 to the maximum length through the push rod 61, the second rack 58 drives the circular clamping block 59 to be separated from the clamping groove 57 on the upper side, the second rack 58 starts to move downwards under the downward action of the fourth spring 62, the second rack 58 drives the third gear 64 to rotate, the third gear 63 drives the fourth threaded rod 63 to rotate, the fourth threaded rod 63, and the water collecting tank 45 seals the water baffle 46 to move rightwards; at this time, the second motor 49 is started to drive the first synchronous wheel 50 to rotate reversely, so that the pushing frame 53 can move upwards, the pushing frame 53 pushes the drainage plate 47 to move upwards, and the check valve 48 on the surface of the drainage plate 47 is pushed by water in the water collecting tank 45 to flow into the water collecting tank 5; when the drain board 47 moves to the upper side position in the water collecting tank 45, at this time, the push rod 61 starts to compress the fourth spring 62, an upward force is applied to the second rack 58 through the fourth spring 62, when the push rack 53 drives the drain board 47 to move to the uppermost end position, at this time, the push rod 61 pushes the second rack 58 to move upward through the fourth spring 62, the circular fixture block 59 on the surface of the second rack 58 is separated from the fixture block on the lower side position, under the action of the fourth spring 62, the second rack 58 drives the circular fixture block 59 to move to the position where the circular fixture block 59 is clamped with the upper side fixture groove 57, and in the process that the second rack 58 moves upward, the second rack 58 drives the water baffle 46 to move leftward through the third gear 64 and the fourth threaded rod 63; when the water guard 46 is moved to the leftmost position, the water discharge plate 47 is moved to a position near the bottom in the water collection tank 45 by activating the second motor 49, and the water is circulated so that the evaporated water is discharged while maintaining the vacuum environment in the condensation duct 44 and the evaporation tank 3.
As a further scheme of the invention, the right side position of the upper end of the bottom plate 1 is fixedly connected with an exhaust gas treatment box 65, the upper end of the exhaust gas treatment box 65 is fixedly connected with an air pipe 66, the upper end of the air pipe 66 is fixedly connected with an air suction pump 67, and the air suction pump 67 is fixedly connected with the condensing pipe 44; during operation, harmful gas can appear in the in-process of sewage evaporation, can take out the harmful gas in the condenser pipe 44 through aspiration pump 67, then transmit to in the exhaust-gas treatment case 65 through trachea 66 to environmental protection's effect has been reached.
As a further scheme of the invention, the method comprises the following specific steps:
the method comprises the following steps: starting the heating cylinder 4 to heat the sewage in the evaporation box 3 to a boiling state;
step two: the water vapor enters the condensing pipe 44 to be liquefied and enters the water collecting tank 45, and the second driving mechanism is started to discharge the water in the water collecting tank 45;
step three: after the sewage is evaporated, starting the discharging mechanism and the collecting mechanism;
step four: the collecting mechanism is in butt joint with the heating cylinder 4, and the discharging mechanism discharges the impurities evaporated from the sewage into the collecting mechanism.
Claims (6)
1. The utility model provides a sewage treatment plant based on vacuum evaporation, includes bottom plate (1), its characterized in that: the upper end of the bottom plate (1) is fixedly connected with a first fixing frame (2), an evaporation box (3) is fixedly connected inside the first fixing frame (2), and the bottom end of the evaporation box (3) is hermetically and slidably connected with a heating cylinder (4); a discharging mechanism is arranged in the evaporation box (3), and is used for discharging impurities evaporated from the evaporation box (3) under the condition of keeping the vacuum in the evaporation box (3) and reducing the loss of heat in the evaporation box (3); a collecting mechanism is arranged at the bottom of the left side of the evaporation box (3) and used for collecting impurities discharged by the discharging mechanism; the upper end of the bottom plate (1) is fixedly connected with a water collecting tank (5), the upper end of the water collecting tank (5) is provided with a drainage mechanism, and the drainage mechanism is used for discharging evaporated water into the water collecting tank (5) in a vacuum environment;
the discharging mechanism comprises a fixed plate (6), the fixed plate (6) is fixedly connected with the evaporation box (3), a first cylinder (7) is fixedly connected inside a first fixed frame (2), a first motor (8) is fixedly connected to the bottom end of the first cylinder (7), a rotating frame (9) is fixedly connected to the bottom end of an output shaft of the first motor (8), a rotating rod (10) and a rotating cylinder (11) are respectively and rotatably connected to the upper side and the lower side inside the rotating frame (9), the rotating rod (10) is located inside the rotating cylinder (11), and the rotating rod (10) is rotatably connected with the rotating cylinder (11); the bottom ends of the rotating cylinder (11) and the rotating rod (10) are respectively and fixedly connected with a first stirring rod (12) and a second stirring rod (13), the surface of the first stirring rod (12) is connected with a fifth threaded rod (19) in a sliding mode, and the bottom end of the fifth threaded rod (19) is fixedly connected with an arc-shaped scraper (15); the bottom end of the second stirring rod (13) is fixedly connected with a top block (16), and the top block (16) is rotatably connected with the surface of the bottom end of the heating cylinder (4); the surface of the first stirring rod (12) is provided with a first driving mechanism, and the first driving mechanism is used for driving the arc-shaped scraper (15) to move to a position contacted with the bottom end of the heating cylinder (4) after the sewage is evaporated; the surface of the rotating frame (9) is provided with a locking mechanism, and the locking mechanism is used for locking the rotating rod (10) and the rotating cylinder (11) on the surface of the rotating frame (9) to prevent the rotating rod (10) and the rotating cylinder (11) from rotating relative to the rotating frame (9);
the collecting mechanism comprises two third fixing frames (29), and the two third fixing frames (29) are respectively and fixedly connected with the surfaces of the front end and the rear end of the heating cylinder (4); a sliding plate (30) is arranged at the bottom end of the heating cylinder (4), the sliding plate (30) is in sliding connection with third fixing frames (29) on the front side and the rear side, a fixing frame (31) is fixedly connected to the surface of the left end of the sliding plate (30), a collecting barrel (32) is arranged in the fixing frame (31), the collecting barrel (32) is in clearance fit with the fixing frame (31), and a first connector (33) is fixedly connected to the upper end of the collecting barrel (32); the surface of the left end of the heating cylinder (4) is fixedly connected with a second joint (34), and the first joint (33) is in clamping fit with the second joint (34); a first sealing plate (35) and a second sealing plate (36) are respectively connected to the inner parts of the first joint (33) and the second joint (34) in a sealing and sliding manner, a first spring (37) and a second spring (38) are respectively fixedly connected to the upper ends of the first sealing plate (35) and the second sealing plate (36), and the other ends of the first spring (37) and the second spring (38) are respectively fixedly connected with the first joint (33) and the heating cylinder (4); the bottom end of the left side of the first fixing frame (2) is fixedly connected with an expansion rod (39), the bottom end of the expansion rod (39) is fixedly connected with a connecting frame (40), and the connecting frame (40) is simultaneously attached to the bottom end surfaces of the first sealing plate (35) and the second sealing plate (36); a second threaded rod (41) is rotatably connected to the surface of the right end of the third fixing frame (29), the sliding plate (30) is in threaded fit with the second threaded rod (41), a second gear (42) is fixedly connected to the right end of the second threaded rod (41), a first rack (43) is meshed with the surface of the second gear (42), and the first rack (43) is fixedly connected with the water collecting tank (5);
the water draining mechanism comprises a condensing pipe (44), the condensing pipe (44) is fixedly connected with the upper end of the evaporation tank (3), the bottom end of the condensing pipe (44) is fixedly connected with a water collecting tank (45), the upper side and the lower side of the inside of the water collecting tank (45) are respectively provided with a water baffle (46) and a water draining plate (47), and the water baffle (46) and the water draining plate (47) are both in sliding connection with the water collecting tank (45); the water baffle (46) is positioned at the upper end position in the water collecting tank (45), the sliding direction in the water collecting tank (45) is the left-right direction, and the sliding direction of the drainage plate (47) in the water collecting tank (45) is the up-down direction; the bottom end of the drainage plate (47) is fixedly connected with a one-way valve (48), and the flow direction of the one-way valve (48) is downward; and a second driving mechanism is arranged on the surface of the water collecting tank (5), and is used for driving the water baffle (46) and the drainage plate (47) to slide in the water collecting tank (45).
2. The vacuum evaporation-based sewage treatment apparatus according to claim 1, wherein: the locking mechanism comprises two first sliding blocks (17), and the two first sliding blocks (17) are in sliding connection with the evaporation box (3); a second fixing frame (18) is arranged in the evaporation box (3), the second fixing frame (18) is fixedly connected with the two first sliding blocks (17) at the same time, and a first threaded rod (14) is fixedly connected inside the second fixing frame (18); a first bevel gear (20) is rotatably connected to the front end position in the rotating frame (9), a second bevel gear (21) and a first bevel gear ring (22) are respectively meshed to the upper side and the lower side of the surface of the first bevel gear (20), the second bevel gear (21) is fixedly connected with the rotating rod (10), and the first bevel gear ring (22) is fixedly connected with the rotating cylinder (11); a worm (23) is rotatably connected to the front end of the surface of the rotating frame (9), the worm (23) is in threaded fit with the first threaded rod (14), a worm wheel (24) is meshed with the surface of the worm (23), and the worm wheel (24) is fixedly connected with the first bevel gear (20); the first threaded rod (14) is a threaded rod without self-locking.
3. The vacuum evaporation-based sewage treatment apparatus according to claim 1, wherein: the first driving mechanism comprises a first gear (25), the first gear (25) is in rotating connection with the first stirring rod (12), a third bevel gear (26) is fixedly connected to the surface of the first gear (25), a second bevel gear ring (27) is meshed with the surface of the third bevel gear (26), the second bevel gear ring (27) is in rotating connection with the first stirring rod (12), and the second bevel gear ring (27) is in threaded fit with the fifth threaded rod (19); an arc-shaped rack (28) is arranged at the bottom end of the first gear (25), the arc-shaped rack (28) is fixedly connected with the second stirring rod (13), and the first gear (25) is meshed with the arc-shaped rack (28).
4. The sewage treatment device based on vacuum evaporation as claimed in claim 1, wherein: the second driving mechanism comprises a second motor (49), the second motor (49) is fixedly connected with the water collecting tank (5), and the upper end of an output shaft of the second motor (49) is fixedly connected with a first synchronizing wheel (50); a fourth fixing frame (51) is fixedly connected to the upper end of the water collecting tank (5), third threaded rods (52) are symmetrically and rotatably connected to the left side and the right side of the upper end of the fourth fixing frame (51), a pushing frame (53) is in threaded fit with the upper end of each third threaded rod (52), second synchronizing wheels (54) are fixedly connected to the bottom ends of the third threaded rods (52), and synchronous belts (55) are meshed with the surfaces of the first synchronizing wheel (50) and the two second synchronizing wheels (54); the third threaded rod (52) is a threaded rod with self-locking property; the upper end of the pushing frame (53) is fixedly connected with the drainage plate (47); the front side and the rear side of the surface of the left end of the water collecting tank (45) are symmetrically provided with sliding grooves (56), the front side and the rear side of the right side of the water collecting tank (45) are symmetrically provided with clamping grooves (57), the sliding grooves (56) are connected with second racks (58) in a sliding manner, the front ends and the rear ends of the second racks (58) at the front end and the rear end are respectively connected with a circular clamping block (59) in a sliding manner, the surface of the circular clamping block (59) is fixedly connected with a third spring (60), and the other end of the third spring (60) is fixedly connected with the second racks (58); the circular clamping block (59) is in clamping fit with the clamping groove (57); a push rod (61) is fixedly connected to the upper end of the right side of the pushing frame (53), the push rod (61) is in sliding connection with the second rack (58), a fourth spring (62) is fixedly connected to the upper end of the push rod (61), and the upper end of the fourth spring (62) is fixedly connected with the second rack (58); the inside front and back both sides position symmetry of header tank (45) upside rotates has fourth threaded rod (63), fourth threaded rod (63) and breakwater (46) screw-thread fit and fourth threaded rod (63) right-hand member fixed surface are connected with third gear (64), third gear (64) and second rack (58) meshing.
5. The vacuum evaporation-based sewage treatment apparatus according to claim 1, wherein: bottom plate (1) upper end right side position fixedly connected with exhaust-gas treatment case (65), exhaust-gas treatment case (65) upper end fixedly connected with trachea (66), trachea (66) upper end fixedly connected with aspiration pump (67), aspiration pump (67) and condenser pipe (44) fixed connection.
6. A sewage treatment method based on vacuum evaporation, which is suitable for the sewage treatment device based on vacuum evaporation of any one of claims 1-5, and is characterized in that: the method comprises the following specific steps:
the method comprises the following steps: starting the heating cylinder (4) to heat the sewage in the evaporation box (3) to a boiling state;
step two: the water vapor enters the condensing pipe (44) to be liquefied and enters the water collecting tank (45), and the second driving mechanism is started to discharge the water in the water collecting tank (45);
step three: after the sewage is evaporated, starting the discharging mechanism and the collecting mechanism;
step four: the collecting mechanism is in butt joint with the heating cylinder (4), and the discharging mechanism discharges the impurities evaporated from the sewage into the collecting mechanism.
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| CN202210310728.9A CN114656004B (en) | 2022-03-28 | 2022-03-28 | Sewage treatment device and sewage treatment method based on vacuum evaporation |
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| CN202210310728.9A CN114656004B (en) | 2022-03-28 | 2022-03-28 | Sewage treatment device and sewage treatment method based on vacuum evaporation |
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Denomination of invention: A sewage treatment device and method based on vacuum evaporation Effective date of registration: 20231221 Granted publication date: 20221108 Pledgee: Zhejiang Pinghu Rural Commercial Bank Co.,Ltd. Xindai sub branch Pledgor: Jiaxing Cihai nondestructive testing equipment manufacturing Co.,Ltd. Registration number: Y2023980072578 |
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