CN111732236A - New forms of energy sewage treatment plant - Google Patents
New forms of energy sewage treatment plant Download PDFInfo
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- CN111732236A CN111732236A CN202010710557.XA CN202010710557A CN111732236A CN 111732236 A CN111732236 A CN 111732236A CN 202010710557 A CN202010710557 A CN 202010710557A CN 111732236 A CN111732236 A CN 111732236A
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- wall surface
- water
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of sewage treatment and discloses a new energy sewage treatment device, wherein a rotary hole is formed in the right wall surface of a supporting block, a spring is fixedly arranged on the upper wall surface in a groove, sewage is injected into a water purification tank II from a water inlet pipe, the sewage can primarily filter impurities in the sewage after passing through the filter screen, the primarily filtered sewage enters the first water purifying tank through the water pipe, a second motor in the supporting cylinder is connected with external power supply equipment, the second motor drives a short shaft to rotate, the short shaft rotates to drive a shifting sheet to rotate, the shifting sheet rotates to drive the sewage in the first water purifying tank to rotate, so that the sewage and the alum are fully mixed, so that the sewage is more fully purified, after the purified water is discharged through the water outlet pipe, the first motor is connected with external power supply equipment, the motor drives the cam to rotate, the cam rotates to drive the abutting block to do lifting motion, the abutting block impacts the filter screen when moving downwards, thereby piling up on the filter screen and shake to fall in order to avoid the dirt to block up the filter screen and influence the water purification effect.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a new energy sewage treatment device.
Background
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 pollution of surface water is obvious, and the pollution of underground water is eye surprise. In 13 hundred million people in China, 70% of groundwater is drunk, and in more than 660 cities, more than 400 cities use groundwater as drinking water sources. But 90% of the municipal groundwater throughout the country has been described to be contaminated.
Along with scientific and technological development, the new forms of energy begin to be used in sewage treatment, and general new forms of energy sewage treatment device is in the equipment installation filter with filter to the particulate matter in the sewage, but general sewage treatment device is when purifying sewage because the particulate matter in the sewage is more and the filter can't wash in the equipment to lead to after long-term the use, the filter is blockked up by the particulate matter in the sewage and influence the problem of filtration quality, for this reason needs a new forms of energy sewage treatment plant.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a new energy sewage treatment device which has the advantages of blockage avoidance, convenience in disassembly and the like, and solves the problem that the filtering quality is influenced because the filtering plate is blocked by particles in sewage after long-term use because the particles in the sewage are more and the filtering plate cannot be cleaned in the device when general sewage treatment equipment is used for purifying the sewage.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a new energy sewage treatment device comprises a first water purification tank, wherein the first water purification tank is of a rectangular hollow structure, alum is filled in the first water purification tank, support columns are fixedly installed at four corners of the lower wall surface of the first water purification tank, each support column is of a circular truncated cone-shaped structure, a water outlet is formed in the position, close to the lower end, of the right wall surface of the first water purification tank, each water outlet is a circular through hole, a water outlet pipe is arranged in each water outlet, each water outlet pipe is an L-shaped hollow pipe, each water outlet pipe is connected with the corresponding water outlet in an inserting mode, a valve is arranged on the outer circular wall surface of each water outlet pipe, shaft holes are formed in the four corners of the upper wall surface of the first water purification tank, each shaft hole is a circular through hole, a water flowing port is formed in the middle position of the upper wall surface of the first water, a second motor is fixedly installed on the upper wall surface inside the supporting cylinder, a short shaft is fixedly installed on the lower wall surface of a shaft of the second motor, a shifting piece is arranged on the position, close to the lower end, of the outer circle wall surface of the short shaft, the shifting piece is of an arc structure, a second water purification tank is fixedly installed on the upper wall surface of the supporting cylinder, the second water purification tank is of a rectangular hollow structure, an opening is formed in the upper wall surface of the second water purification tank, sliding grooves are formed in the left side wall surface and the right side wall surface inside the second water purification tank, the sliding grooves are T-shaped grooves, sliding blocks are arranged inside the sliding grooves and are of T-shaped structures, the sliding blocks are connected with the sliding grooves in a sliding mode, a net frame is arranged between the two sliding blocks and is of a rectangular annular structure, a filter screen is arranged inside the net frame, a through hole is formed in the lower wall surface of the, the four corners of the upper wall surface of the cover plate are provided with connecting holes, the connecting holes are round threaded through holes, the positions of the connecting holes correspond to the positions of the fixing holes, bolts are arranged inside the connecting holes, the bolts extend into the fixing holes and are in threaded connection with the fixing holes, the upper wall surface of the second water purification tank is provided with a water outlet, the water outlet is a round through hole, the upper wall surface of the second water purification tank is fixedly provided with a fixing column, the fixing columns are cylindrical structures and three, the upper wall surface of the fixing column is fixedly provided with a supporting ring, the supporting ring is in a circular ring structure, the inner circle wall surface of the supporting ring is fixedly provided with a water inlet pipe, the rear wall surface of the second water purification tank is provided with a rotary hole, the rotary hole is a round through hole, the inner circle wall surface of the rotary hole is provided with a sealing gasket, the sealing gasket is, the opening has been seted up to the antetheca of machine box, wall fixed mounting has motor one behind the inside of machine box, the antetheca fixed mounting of the axle of motor one has the pivot, the antetheca fixed mounting of pivot has the cam, the cam is the arc structure, the inside antetheca of water purification case two is seted up flutedly, the recess is the rectangular channel, the recess is located the downside position of slider, be provided with the rotary column between the inside left and right sides wall face of recess, the rotary column is cylindrical structure, the left and right sides wall face of rotary column respectively with the inside left and right sides wall face fixed connection of recess together, the inside of recess is provided with supports the piece, support the right wall face of piece and seted up the spiral hole, the spiral hole is circular through-hole, the spiral hole cup joints together with the rotary column, wall fixed mounting has the spring on the inside of recess, the.
Preferably, the short shaft is of a cylindrical structure, extends to the lower side of the supporting cylinder, and is communicated with the inside of the shaft hole and extends to the inside of the first fresh water tank.
Preferably, the support cylinder is of a cylindrical hollow structure, an opening is formed in the lower wall surface of the support cylinder, and the position of the support cylinder corresponds to the position of the shaft hole.
Preferably, the through hole is a circular through hole, and the water passing pipe extends into the through hole and is spliced with the through hole.
Preferably, the water inlet pipe is a truncated cone-shaped hollow pipe, extends into the water outlet and is inserted into the water outlet.
Preferably, the rotating shaft is of a cylindrical structure, and the rotating shaft is communicated with the inside of the rotating hole and extends to the inside of the second clean water tank.
Preferably, the abutting block is of an L-shaped structure, and the lower wall surface of the abutting block is in mutual contact with the outer circular wall surface of the cam.
(III) advantageous effects
Compared with the prior art, the invention provides a new energy sewage treatment device, which has the following beneficial effects:
1. this new forms of energy sewage treatment plant links to each other with external power supply unit through motor one, purifies the back of discharging with sewage in equipment, and the motor drives the cam rotation, and the cam rotates in order to drive supports the piece downstream, supports a section distance back of moving down, resumes to the primary position under the effort of spring to make and support the piece and do the elevating movement who makes a round trip, support the piece and strike the filter screen when the downstream, thereby pile up on the filter screen and shake at the dirt and fall in order to avoid the dirt to block up the filter screen and influence the water purification effect.
2. This new forms of energy sewage treatment plant through having seted up the water inlet on water purification case one, and the inside grafting of water inlet has the inlet tube, and the inlet tube is round platform shape hollow tube, according to narrow tube effect, when sewage from the inlet tube flow into water purification case one in, the velocity of flow of sewage can crescent to the injection rate of sewage has been accelerated in order to improve purification efficiency.
3. This new forms of energy sewage treatment plant through being provided with the filter screen in water purification case two, when pouring sewage from the inlet tube, sewage flows through the filter screen to can filter the tiny particle impurity in the sewage, thereby reach preliminary purification's effect.
4. This new forms of energy sewage treatment plant is through being filled with alum in water purification case one, and when the sewage after preliminary purification got into water purification case one inside through the water pipe, sewage strikeed water purification case one inside alum so that the impurity of alum in to sewage adsorbs to reach sewage secondary purification's effect.
5. This new forms of energy sewage treatment plant is provided with motor two in through the support cylinder, and motor two links to each other with external power supply unit, and the axle rotation of motor two is rotatory in order to drive the minor axis, is provided with the plectrum on the minor axis, and when the minor axis was rotatory, the plectrum on the minor axis was rotatory in a water purification case is inside along with the minor axis to carry out rotatory stirring to the sewage of a water purification case inside, so that alum and sewage in the water purification case fully contact, thereby improve secondary purification effect.
6. This new forms of energy sewage treatment plant through having seted up the fixed orifices on water purification case two, has seted up the connecting hole on the apron, and the apron links together through bolt and water purification case two, and after equipment long-term use, rotatory bolt breaks away from the apron inside with taking off of fixed orifices and connecting hole, upwards stimulates the slider, and the slider upwards slides in order to drive the filter screen rebound in the spout to the inspection is maintained to the filter screen in the net frame, so that guarantee equipment's purifying effect.
Drawings
FIG. 1 is a schematic view of the present invention showing a three-dimensional split structure;
FIG. 2 is a partial schematic view of A of FIG. 1;
FIG. 3 is a perspective view of a second water purifying tank in the structure of the invention;
FIG. 4 is a schematic view showing the internal structure of a second water purifying tank in the structure of the present invention;
FIG. 5 is a partial schematic view of B in FIG. 4;
fig. 6 is a schematic diagram of the internal structure of the first water purifying tank in the structure of the invention.
In the figure: 1 purified water tank I, 2 supporting columns, 3 water outlets, 4 water outlet pipes, 5 shaft holes, 6 water flowing ports, 7 water passing pipes, 8 supporting cylinders, 9 purified water tank II, 10 machine boxes, 11 fixing holes, 12 cover plates, 13 connecting holes, 14 bolts, 15 water inlets, 16 fixing columns, 17 supporting rings, 18 water inlet pipes, 19 through holes, 20 sliding chutes, 21 sliding blocks, 22 net frames, 23 filter screens, 24 motor I, 25 rotating shafts, 26 sealing gaskets, 27 cams, 28 grooves, 29 rotating columns, 30 abutting blocks, 31 rotating holes, 32 springs, 33 motor II, 34 short shafts, 35 shifting pieces and 36 rotating holes.
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.
Referring to fig. 1-6, a new energy sewage treatment device comprises a first water purification tank 1, wherein the first water purification tank 1 is of a rectangular hollow structure, alum is filled in the first water purification tank 1, support columns 2 are fixedly installed at four corners of a lower wall surface of the first water purification tank 1, each support column 2 is of a circular truncated cone structure, a water outlet 3 is formed in a position, close to a lower end, of a right wall surface of the first water purification tank 1, each water outlet 3 is a circular through hole, a water outlet pipe 4 is arranged in each water outlet 3, each water outlet pipe 4 is an L-shaped hollow pipe, each water outlet pipe 4 is inserted into each water outlet 3, a valve is arranged on an outer circular wall surface of each water outlet pipe 4, shaft holes 5 are formed in four corners of an upper wall surface of the first water purification tank 1, each shaft hole 5 is a circular through hole, a water flowing port 6 is formed in the middle, the water pipe 7 is a cylindrical hollow pipe, four corners of the upper wall of the first water purification tank 1 are fixedly provided with a supporting cylinder 8, the supporting cylinder 8 is of a cylindrical hollow structure, the lower wall of the supporting cylinder 8 is provided with an opening, the position of the supporting cylinder 8 corresponds to the position of the shaft hole 5, the upper wall of the inside of the supporting cylinder 8 is fixedly provided with a second motor 33, the second motor 33 is of an existing structure and is not described herein any more, the lower wall of the shaft of the second motor 33 is fixedly provided with a short shaft 34, the short shaft 34 is of a cylindrical structure, the short shaft 34 extends to the lower side of the supporting cylinder 8, the short shaft 34 is communicated with the inside of the shaft hole 5 and extends to the inside of the first water purification tank 1, the outer circular wall of the short shaft 34 is provided with a shifting sheet 35 near the lower end, the shifting sheet 35 is of an arc-shaped structure, the upper wall of the supporting cylinder 8 is fixedly provided with a second water, the left side wall surface and the right side wall surface of the inside of the second water purification tank 9 are both provided with sliding grooves 20, each sliding groove 20 is a T-shaped groove, each sliding groove 20 is internally provided with a sliding block 21, each sliding block 21 is of a T-shaped structure, each sliding block 21 is connected with the corresponding sliding groove 20 in a sliding manner, a net frame 22 is arranged between the two sliding blocks 21, each net frame 22 is of a rectangular annular structure, each net frame 22 is internally provided with a filter screen 23, the lower wall surface of the second water purification tank 9 is provided with a through hole 19, each through hole 19 is a circular through hole, the water pipe 7 extends into the through hole 19 all the time and is inserted into the through hole 19, the four corners of the upper wall surface of the second water purification tank 9 are both provided with fixing holes 11, each fixing hole 11 is a circular threaded hole, the upper wall surface of the second water purification tank 9 is provided with a cover plate 12, each cover plate 12 is, a bolt 14 is arranged inside the connecting hole 13, an external thread is arranged on the outer circular wall surface of the bolt 14, the bolt 14 extends into the fixing hole 11 and is in threaded connection with the fixing hole 11, a water outlet 15 is arranged on the upper wall surface of the water purification tank II 9, the water outlet 15 is a circular through hole, a fixing column 16 is fixedly arranged on the upper wall surface of the water purification tank II 9, the fixing columns 16 are cylindrical structures, three fixing columns 16 are arranged, a supporting ring 17 is fixedly arranged on the upper wall surface of the fixing column 16, the supporting ring 17 is of a circular ring-shaped structure, a water inlet pipe 18 is fixedly arranged on the inner circular wall surface of the supporting ring 17, the water inlet pipe 18 is a circular truncated cone-shaped hollow pipe, the water inlet pipe 18 extends into the water outlet 15 and is spliced with the water outlet 15, a rotating hole 36 is arranged on the rear wall surface of the water purification tank II 9, the sealing gasket 26 is made of rubber materials, the machine box 10 is fixedly installed on the rear wall surface of the water purifying tank II 9, the machine box 10 is of a rectangular hollow structure, an opening is formed in the front wall surface of the machine box 10, the motor I24 is fixedly installed on the rear wall surface inside the machine box 10, the motor I24 is of an existing structure and is not described herein in detail, a rotating shaft 25 is fixedly installed on the front wall surface of a shaft of the motor I24, the rotating shaft 25 is of a cylindrical structure, the rotating shaft 25 is communicated with the inside of the rotating hole 36 and extends into the inside of the water purifying tank II 9, a cam 27 is fixedly installed on the front wall surface of the rotating shaft 25, the cam 27 is of an arc-shaped structure, a groove 28 is formed in the front wall surface inside the water purifying tank II 9, the groove 28 is a rectangular groove, the groove 28 is located at the lower side position of the sliding block 21, a rotating column 29 is arranged between the left side wall surface and the right side wall, the inner part of the groove 28 is provided with a resisting block 30, the resisting block 30 is of an L-shaped structure, the lower wall surface of the resisting block 30 is in contact with the outer circle wall surface of the cam 27, the right wall surface of the resisting block 30 is provided with a rotary hole 31, the rotary hole 31 is a circular through hole, the rotary hole 31 is sleeved with the rotary column 29, the upper wall surface in the inner part of the groove 28 is fixedly provided with a spring 32, and the lower wall surface of the spring 32 is fixedly connected with the upper wall surface of the resisting block 30.
When the device is used, sewage is injected into the water purification tank II 9 from the water inlet pipe 18, the water inlet pipe 18 is a truncated cone-shaped hollow pipe, when the sewage is injected, the sewage is gradually increased according to the narrow pipe effect, the sewage can primarily filter impurities in the sewage after flowing down after entering the water purification tank II 9 and being filtered by the filter screen 23, the primarily filtered sewage enters the water purification tank I1 through the water pipe 7, the motor II 33 in the support cylinder 8 is connected with external power supply equipment, the motor II 33 drives the short shaft 34 to rotate, the short shaft 34 rotates to drive the shifting piece 35 to rotate, the shifting piece 35 rotates to drive the sewage in the water purification tank I1 to rotate, so that the sewage and alum are sufficient, the shifting piece 35 is of an arc-shaped structure to reduce the resistance of the water to the shifting piece 35, the sewage is purified more fully, after the purified water is discharged through the water outlet pipe 4, the motor I24 is connected with the external power supply equipment, and the motor I24, the cam 27 rotates to drive the abutting block 30 to move up and down, and the abutting block 30 impacts the filter screen 23 when moving downwards, so that dirt accumulated on the filter screen 23 is shaken off to prevent the dirt from blocking the filter screen 23 to influence the water purification effect.
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 (9)
1. The utility model provides a new forms of energy sewage treatment plant, includes water purification case (1), the equal fixed mounting in lower wall four corners position of water purification case (1) has support column (2), and the right wall of water purification case (1) is close to lower extreme position and has seted up delivery port (3), and the inside of delivery port (3) is pegged graft and is had outlet pipe (4), and shaft hole (5) have all been seted up to the last wall four corners position of water purification case (1), and water flowing mouth (6) have been seted up to the last wall intermediate position of water purification case (1), and the inside of water flowing mouth (6) is pegged graft and is had water pipe (7), its characterized in that: the upper wall surface four corners of the first water purification tank (1) are fixedly provided with supporting cylinders (8), the inner upper wall surface of each supporting cylinder (8) is fixedly provided with a second motor (33), the lower wall surface of a shaft of each second motor (33) is fixedly provided with a short shaft (34), the outer circle wall surface of each short shaft (34) is provided with a shifting sheet (35) close to the lower end position, the upper wall surface of each supporting cylinder (8) is fixedly provided with a second water purification tank (9), the left side wall surface and the right side wall surface of the inner portion of each second water purification tank (9) are respectively provided with a sliding groove (20), the inner portion of each sliding groove (20) is provided with a sliding block (21), a net frame (22) is arranged between the two sliding blocks (21), the inner portion of each net frame (22) is provided with a filter screen (23), the lower wall surface of each second water purification tank (9) is provided with a through hole (19), the upper wall, the water purifier is characterized in that four corners of the upper wall surface of the cover plate (12) are provided with connecting holes (13), bolts (14) are arranged inside the connecting holes (13), the upper wall surface of the second water purifying tank (9) is provided with a water outlet (15), the upper wall surface of the second water purifying tank (9) is fixedly provided with a fixing column (16), the upper wall surface of the fixing column (16) is fixedly provided with a supporting ring (17), the inner circular wall surface of the supporting ring (17) is fixedly provided with a water inlet pipe (18), the rear wall surface of the second water purifying tank (9) is provided with a rotating hole (36), the inner circular wall surface of the rotating hole (36) is provided with a sealing gasket (26), the rear wall surface of the second water purifying tank (9) is fixedly provided with a machine box (10), the inner rear wall surface of the machine box (10) is fixedly provided with a first motor (24), the front wall surface of, a groove (28) is formed in the front wall face of the interior of the second water purification tank (9), a rotary column (29) is arranged between the left side wall face and the right side wall face of the interior of the groove (28), a supporting block (30) is arranged in the groove (28), a rotary hole (31) is formed in the right wall face of the supporting block (30), and a spring (32) is fixedly mounted on the upper wall face of the interior of the groove (28).
2. The new energy sewage treatment plant of claim 1, wherein: the abutting block (30) is of an L-shaped structure, and the lower wall surface of the abutting block (30) is in mutual contact with the outer circular wall surface of the cam (27).
3. The new energy sewage treatment plant of claim 1, wherein: the short shaft (34) is of a cylindrical structure, the short shaft (34) extends to the lower side of the supporting cylinder (8), and the short shaft (34) is communicated with the inside of the shaft hole (5) and extends to the inside of the first water purifying tank (1).
4. The new energy sewage treatment plant of claim 1, wherein: the water inlet pipe (18) is a truncated cone-shaped hollow pipe, and the water inlet pipe (18) extends into the water outlet (15) and is spliced with the water outlet (15).
5. The new energy sewage treatment plant of claim 1, wherein: the through hole (19) is a circular through hole, and the water passing pipe (7) extends into the through hole (19) and is spliced with the through hole (19).
6. The new energy sewage treatment plant of claim 1, wherein: the bolt (14) extends to the inside of the fixing hole (11) and is connected with the fixing hole (11) in a threaded mode.
7. The new energy sewage treatment plant of claim 1, wherein: the rotating shaft (25) is of a cylindrical structure, and the rotating shaft (25) is communicated with the inside of the rotating hole (36) and extends to the inside of the second water purifying tank (9).
8. The new energy sewage treatment plant of claim 1, wherein: the supporting cylinder (8) is of a cylindrical hollow structure, and the position of the supporting cylinder (8) corresponds to the position of the shaft hole (5).
9. The new energy sewage treatment plant of claim 1, wherein: the groove (28) is a rectangular groove, and the groove (28) is located at the lower side of the sliding block (21).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010710557.XA CN111732236A (en) | 2020-07-22 | 2020-07-22 | New forms of energy sewage treatment plant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010710557.XA CN111732236A (en) | 2020-07-22 | 2020-07-22 | New forms of energy sewage treatment plant |
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CN111732236A true CN111732236A (en) | 2020-10-02 |
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CN202010710557.XA Withdrawn CN111732236A (en) | 2020-07-22 | 2020-07-22 | New forms of energy sewage treatment plant |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112323748A (en) * | 2020-10-27 | 2021-02-05 | 李玉苓 | Overwater garbage cleaning equipment |
CN112568826A (en) * | 2020-11-19 | 2021-03-30 | 机械工业第九设计研究院有限公司 | Accumulated water removing equipment in vehicle body production |
CN112645467A (en) * | 2020-12-21 | 2021-04-13 | 绍兴国泰印染有限公司 | Printing and dyeing wastewater advanced treatment system |
-
2020
- 2020-07-22 CN CN202010710557.XA patent/CN111732236A/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112323748A (en) * | 2020-10-27 | 2021-02-05 | 李玉苓 | Overwater garbage cleaning equipment |
CN112568826A (en) * | 2020-11-19 | 2021-03-30 | 机械工业第九设计研究院有限公司 | Accumulated water removing equipment in vehicle body production |
CN112645467A (en) * | 2020-12-21 | 2021-04-13 | 绍兴国泰印染有限公司 | Printing and dyeing wastewater advanced treatment system |
CN112645467B (en) * | 2020-12-21 | 2022-07-22 | 绍兴国泰印染有限公司 | Printing and dyeing wastewater advanced treatment system |
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Application publication date: 20201002 |