CN108395022B - Self-cleaning formula pond system - Google Patents
Self-cleaning formula pond system Download PDFInfo
- Publication number
- CN108395022B CN108395022B CN201810407391.7A CN201810407391A CN108395022B CN 108395022 B CN108395022 B CN 108395022B CN 201810407391 A CN201810407391 A CN 201810407391A CN 108395022 B CN108395022 B CN 108395022B
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- feeding pipe
- fixed
- tank
- dosing
- hole
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
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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
- C02F1/5281—Installations for water purification using chemical agents
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a self-cleaning water pool system which comprises a coagulation pool, a sedimentation pool, a filter pool, a water pump and an electric control cabinet, wherein a water diversion pipeline is arranged on the coagulation pool, a stirring device and a dosing device are arranged on the coagulation pool, the dosing device comprises a support, a hopper, a dosing motor, a driving pulley, a driven pulley, a transmission belt, a feeding pipe and a screw rod, a medicine outlet is formed in the bottom of the hopper, the driving pulley is coaxially fixed with a rotating shaft of the dosing motor, a mounting hole is formed in the feeding pipe, the screw rod is rotatably arranged in the mounting hole, the screw rod is arranged in the feeding pipe and matched with the feeding pipe so as to convey powder into the coagulation pool from the hopper, one end of the screw rod extends out of the mounting hole and is coaxially fixed with the driven pulley, and the transmission belt is. Through the arrangement, sewage is not required to be conveyed to a sewage treatment plant through a pipeline, and the sewage can be cleaned in a factory or a residential area, so that the sewage can be recycled, the cost for laying pipeline lines is saved, and the device is energy-saving and environment-friendly.
Description
Technical Field
The invention relates to a water circulation system, in particular to a self-cleaning water pool system.
Background
In order to improve the utilization rate of water resources and achieve the aim of water saving and emission reduction, a method for recycling treated sewage is mainly adopted at present. Sewage (e.g., olefin plant recycle cooling blowdown) generally needs to be treated by a sewage treatment plant and then discharged. This method requires a long pipeline and is costly.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-cleaning water tank system which can clean sewage in a factory or a residential area and recycle the sewage.
In order to achieve the purpose, the invention provides the following technical scheme: a self-cleaning water pool system comprises a coagulation pool, a sedimentation pool, a filter pool, a water pump and an electrical control cabinet, wherein the coagulation pool is communicated with the sedimentation pool, a water diversion pipeline is arranged on the coagulation pool, the sedimentation pool is communicated with the filter pool, the water pump is connected with the filter pool, a stirring device and a dosing device for dosing a medicament into the coagulation pool are arranged on the coagulation pool, the dosing device comprises a bracket, a hopper, a dosing motor, a driving belt wheel, a driven belt wheel, a transmission belt, a dosing pipe and a screw rod, a medicament outlet is arranged at the bottom of the hopper, one end of the dosing pipe is connected with the medicament outlet, the other end of the dosing pipe is arranged above the coagulation pool, the hopper is arranged on the bracket, the motor is arranged on the bracket, the driving belt wheel is coaxially fixed with a rotating shaft of the dosing motor, an axially extending mounting hole is arranged on the dosing pipe, the screw rod, in order to carry the powder in the coagulation basin from the hopper, the mounting hole is stretched out to the one end of screw rod to with driven pulley coaxial fixation, the drive belt cover is on driving pulley and driven pulley.
As a further improvement of the invention, the bracket is provided with a positioning plate for positioning the drug feeding motor and the feeding pipe and a fixing component for fixing the positioning plate, the fixing component comprises a bolt, a fixing plate and a fixing sleeve, the fixing sleeve is fixed on the bracket and positioned on one side back to the drug outlet, the fixing sleeve is horizontally arranged, the opening of the fixing sleeve faces the drug outlet, the fixing plate is fixed on the bracket and positioned on one side facing the drug outlet, the fixing plate is provided with a positioning groove for positioning the positioning plate, the positioning plate is provided with a through hole, the fixing plate is provided with a threaded hole, and the bolt penetrates through the through hole to be in threaded connection with the threaded hole to lock the positioning.
As a further improvement of the invention, the medicine outlet is provided with a connecting component for connecting a feeding pipe, the connecting component comprises a connecting seat, a connecting disc, a connecting gear, a connecting rod, a knob and a plurality of connecting claws, the connecting seat is fixed on the medicine outlet, the center of the connecting seat is provided with a first hole for the feeding pipe to pass through, one end of the connecting seat provided with the first hole is provided with an annular first groove, the connecting disc is rotatably arranged in the first groove, one end surface of the connecting disc is provided with a driving gear, the other end surface is provided with a thread ridge, the side wall of the first groove is provided with an operating hole, the connecting gear and the knob are respectively and coaxially fixed at two ends of the connecting rod, the connecting rod is rotatably arranged in the operating hole, the connecting gear is arranged in the first groove and is meshed with the driving gear, the connecting seat is provided with a plurality of second holes penetrating through the first groove, and the plurality, all be fixed with the transmission piece on a plurality of connection claws, transmission piece and screw thread ridge cooperation to when the connection pad rotates, drive a plurality of connection claws and be close to each other or mutual dispersion, thereby fixed or let go up the feeding pipe.
As a further improvement of the invention, an annular concave table is arranged on the inner wall of the medicine outlet, an annular bulge for embedding the concave table is arranged on the feeding pipe, a sealing groove is arranged on the side wall of the concave table, and a sealing ring is arranged in the sealing groove.
As a further improvement of the invention, the stirring device comprises a waterproof motor and an impeller, wherein the waterproof motor is arranged in the coagulation tank, and the impeller and a rotating shaft of the stirring motor are coaxially fixed.
As a further improvement of the invention, a filter plate is arranged in the filter tank, the filter plate divides the filter tank into a first cavity and a second cavity, the filter plate comprises a net rack, a ceramic filter element and an active carbon filter element, the net rack is internally provided with the first cavity and the second cavity, the first cavity is arranged above the second cavity, the ceramic filter element is fixed in the first cavity, and the active carbon filter element is arranged in the second cavity.
As a further improvement of the invention, the inner wall of the filtering tank is provided with a supporting block, and the net rack is placed on the supporting block.
The sewage treatment device has the advantages that an operator loads a medicament into a hopper, equipment debugging is well carried out, then a water guide pipeline connects sewage into a coagulation tank, a dosing motor is started to drive a driving belt wheel to rotate, a driving belt wheel is driven to rotate, a driven belt wheel is driven to rotate, a screw rod is driven to rotate, the medicament is conveyed into the coagulation tank from the hopper through the matching of threads on the screw rod and a dosing pipe, a stirring device fully mixes the sewage and the medicament in the coagulation tank, so that dirt in the sewage is separated, the treated sewage flows into a sedimentation tank, the dirt is precipitated and separated from water in the sedimentation tank, the precipitated water flows into a filtering tank to be filtered, fine pollutants in the sewage are further separated, and the water can be recycled. Through the arrangement, sewage is not required to be conveyed to a sewage treatment plant through a pipeline, and the sewage can be cleaned in a factory or a residential area, so that the sewage can be recycled, the cost for laying pipeline lines is saved, and the device is energy-saving and environment-friendly.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a block diagram of the administration set;
fig. 3 is a cross-sectional view of the administration set;
FIG. 4 is an enlarged view of a portion of FIG. 3 at the reference point;
FIG. 5 is a structural view of a filtration tank.
Detailed Description
The invention will be further described in detail with reference to the following examples, which are given in the accompanying drawings.
Referring to fig. 1 to 5, a self-cleaning water tank system of this embodiment includes a coagulation tank 1, a sedimentation tank 2, a filter tank 3, a water pump and an electrical control cabinet, the coagulation tank 1 is communicated with the sedimentation tank 2, a water conduit is disposed on the coagulation tank 1, the sedimentation tank 2 is communicated with the filter tank 3, the water pump is connected with the filter tank 3, a stirring device and a dosing device for adding a drug into the coagulation tank 1 are disposed on the coagulation tank 1, the dosing device includes a bracket 5, a hopper 6, a dosing motor 7, a driving pulley 8, a driven pulley 9, a transmission belt 10, a feeding pipe 11 and a screw 12, a drug outlet is disposed at the bottom of the hopper 6, one end of the feeding pipe 11 is connected with the drug outlet, the other end is disposed above the coagulation tank 1, the hopper 6 is mounted on the bracket 5, the motor is mounted on the bracket 5, the driving pulley 8 is coaxially fixed with a rotating shaft of the dosing motor 7, a mounting hole extending along, screw rod 12 rotates and installs on the mounting hole, and screw rod 12 sets up in throwing material pipe 11 and with throwing material pipe 11 cooperation to carry the powder in the coagulating basin 1 from hopper 6, the mounting hole is stretched out to one end of screw rod 12 to with from the coaxial fixed of driven pulley 9, drive belt 10 cover is on driving pulley 8 and driven pulley 9.
An operator loads a medicament into a hopper 6, equipment debugging is well carried out, then a water guide pipeline connects sewage into a coagulation tank 1, a dosing motor 7 is started, a driving belt wheel 8 is driven to rotate, a driving belt wheel 10 is driven to rotate, a driven belt wheel 9 is driven to rotate, a screw rod 12 is driven to rotate, the medicament is conveyed into the coagulation tank 1 from the hopper 6 through matching of threads on the screw rod 12 and a feeding pipe 11, the sewage and the medicament in the coagulation tank are fully mixed by a stirring device, dirt in the sewage is separated, the treated sewage flows into a sedimentation tank 2, the dirt is precipitated and separated from water in the sedimentation tank 2, the precipitated water flows into a filtering tank 3 to be filtered, and fine pollutants in the sewage are further separated, so that the water can be recycled. Through the arrangement, sewage is not required to be conveyed to a sewage treatment plant through a pipeline, and the sewage can be cleaned in a factory or a residential area, so that the sewage can be recycled, the cost for laying pipeline lines is saved, and the device is energy-saving and environment-friendly.
As an improved specific embodiment, a positioning plate 13 for positioning the medication dosing motor 7 and the feeding pipe 11 and a fixing component for fixing the positioning plate 13 are arranged on the bracket 5, the fixing component includes a bolt 14, a fixing plate 15 and a fixing sleeve 16, the fixing sleeve 16 is fixed on the bracket 5 and located on one side back to the medication outlet, the fixing sleeve 16 is horizontally arranged and has an opening facing the medication outlet, the fixing plate 15 is fixed on the bracket 5 and located on one side facing the medication outlet, a positioning groove for positioning the positioning plate 13 is formed in the fixing plate 15, a through hole is formed in the positioning plate 13, a threaded hole is formed in the fixing plate 15, the bolt 14 penetrates through the through hole to be in threaded connection with the threaded hole, and the positioning plate 13 and the fixing plate 15 are locked.
When the device is installed, an operator firstly positions the dosing motor 7 and the dosing pipe 11 on the positioning plate 13, then aligns one end of the positioning plate 13 with the fixing sleeve 16, inserts the positioning plate 13 into the fixing sleeve 16, and gradually aligns and embeds the other end of the positioning plate 13 into the positioning groove in the process of inserting the positioning plate 13 into the fixing sleeve 16, and simultaneously aligns and connects the dosing pipe 11 with the dosing port, so that pre-positioning of the dosing pipe 11 and the dosing motor 7 is completed, after the pre-positioning is completed, the operator screws the bolt 14, locks the positioning plate 13 on the bracket 5, and completes positioning of the dosing pipe 11 and the dosing motor 7. Through the setting of locating plate 13, increased the area of contact of throwing material pipe 11 and offeing medicine motor 7 and support 5 to throw material pipe 11 and offeing medicine motor 7 more firm connection on support 5.
As a specific embodiment of improvement, a connecting assembly for connecting the feeding tube 11 is arranged on the medicine outlet, the connecting assembly comprises a connecting seat 43, a connecting disc 44, a connecting gear 45, a connecting rod 46, a knob 47 and a plurality of connecting claws 48, the connecting seat 43 is fixed on the medicine outlet, a first hole 49 for the feeding tube 11 to pass through is arranged in the center of the connecting seat 43, an annular first groove 40 is arranged at one end of the connecting seat 43, the first hole 49 is arranged in the first groove 40, the connecting disc 44 is rotatably arranged in the first groove 40, a driving tooth 51 is arranged on one end face of the connecting disc 44, a thread ridge 52 is arranged on the other end face, an operating hole 53 is arranged on the side wall of the first groove 40, the connecting gear 45 and the knob 47 are respectively and coaxially fixed at two ends of the connecting rod 46, the connecting rod 46 is rotatably arranged in the operating hole 53, the connecting gear 45 is arranged in the first groove 40, the connecting seat 43 is provided with a plurality of second holes 54 penetrating through the first groove 40, the plurality of connecting claws 48 are respectively arranged in the second holes 54 in a sliding manner, the plurality of connecting claws 48 are respectively fixed with a transmission block 55, and the transmission blocks 55 are matched with the thread ridges 52 so as to drive the plurality of connecting claws 48 to be close to or discrete from each other when the connecting plate 44 rotates, thereby fixing or releasing the feeding pipe 11.
When the feeding pipe 11 is installed, a user penetrates through the first hole 49, then the knob 47 is rotated to drive the connecting gear 45 to rotate, the connecting gear 45 drives the rotary disc 44 to rotate, the threaded ridges 52 on the rotary disc 44 drive the connecting claws 48 to be close to each other, the feeding pipe 11 is clamped, and therefore the feeding pipe 11 is fixed on the medicine outlet.
As a modified specific embodiment, an annular concave platform 19 is arranged on the inner wall of the medicine outlet, an annular bulge 20 for embedding the concave platform 19 is arranged on the feeding pipe 11, a sealing groove 21 is arranged on the side wall of the concave platform 19, and a sealing ring 22 is arranged in the sealing groove 21.
When the installation, through the cooperation of concave station 19 and arch 20, with feeding tube 11 and play medicine mouth prepositioning, make things convenient for feeding tube 11's installation, the setting of sealing washer 22 can avoid the medicament to reveal from feeding tube 11 and the junction of going out the medicine mouth, reduces the waste of material.
As a modified specific embodiment, the stirring device comprises a waterproof motor 17 and an impeller 18, wherein the waterproof motor 17 is arranged in the coagulation tank 1, and the impeller 18 is coaxially fixed with a rotating shaft of the stirring motor 17.
After the medicament and the sewage are put into the coagulation tank 1, the waterproof motor 17 drives the impeller 18 to rotate, and water in the coagulation tank 1 is promoted to flow, so that the medicament can be in more sufficient contact with the sewage, and the coagulation effect is improved.
As a modified embodiment, be provided with the filter in the filtering ponds 3, the filter separates into first chamber and second chamber with filtering ponds 3, and the filter includes rack 61, ceramic filter 62 and active carbon filter 63, is provided with first chamber and second chamber in the rack 61, and first chamber setting is in the top of second chamber, and ceramic filter 62 is fixed in first chamber, and active carbon filter 63 sets up in the second chamber.
Through the sewage that deposits, the pollutant that contains significantly reduces, behind the inflow filtering ponds 3, filters through ceramic filter 62 earlier, with the filtering of graininess pollutant, then adsorbs the pollutant through active carbon filter 63, can effectively reduce the impurity of aquatic. And the active carbon filter element 63 can be prolonged in service life by filtering with the ceramic filter element 62.
As a modified embodiment, a supporting block 64 is provided on the inner wall of the filtering tank, and the net frame 61 is placed on the supporting block 64.
The net frame 61 is fixed through the supporting block 64, the structure is simple, and the assembly and disassembly are convenient.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. A self-cleaning pool system, comprising: the device comprises a coagulation tank (1), a sedimentation tank (2), a filter tank (3), a water pump and an electrical control cabinet, wherein the coagulation tank (1) is communicated with the sedimentation tank (2), a water conduit is arranged on the coagulation tank (1), the sedimentation tank (2) is communicated with the filter tank (3), the water pump is connected with the filter tank (3), a stirring device and a dosing device for dosing a medicament into the coagulation tank (1) are arranged on the coagulation tank (1), the dosing device comprises a bracket (5), a hopper (6), a dosing motor (7), a driving pulley (8), a driven pulley (9), a driving belt (10), a feeding pipe (11) and a screw (12), a medicament outlet is arranged at the bottom of the hopper (6), one end of the feeding pipe (11) is connected with the medicament outlet, the other end of the feeding pipe is arranged above the coagulation tank (1), and the hopper (6) is arranged on the bracket (5), the chemical dosing machine is characterized in that the chemical dosing motor (7) is mounted on a support (5), the driving belt wheel (8) is coaxially fixed with a rotating shaft of the chemical dosing motor (7), a mounting hole extending along the axial direction is formed in the feeding pipe (11), the screw rod (12) is rotatably mounted on the mounting hole, the screw rod (12) is arranged in the feeding pipe (11) and is matched with the feeding pipe (11) so as to convey powder from the hopper (6) into the coagulation tank (1), one end of the screw rod (12) extends out of the mounting hole and is coaxially fixed with the driven belt wheel (9), the driving belt (10) is sleeved on the driving belt wheel (8) and the driven belt wheel (9), a positioning plate (13) used for positioning the chemical dosing motor (7) and the feeding pipe (11) and a fixing component used for fixing the positioning plate (13) are arranged on the support (5), and the fixing component comprises a bolt (14), Fixed plate (15) and fixed cover (16), fixed cover (16) are fixed on support (5) and are located one side of a medicine outlet dorsad, fixed cover (16) level setting and opening set up towards a medicine outlet, fixed plate (15) are fixed on support (5), and are located one side towards a medicine outlet, set up the constant head tank that is used for locating plate (13) on fixed plate (15), set up the through-hole on locating plate (13), set up the screw hole on fixed plate (15), bolt (14) pass through-hole and screw hole threaded connection, lock locating plate (13) and fixed plate (15) mutually, be provided with the coupling assembling that is used for connecting feeding pipe (11) on the medicine outlet, coupling assembling includes connecting seat (43), connection pad (44), connecting gear (45), connecting rod (46), knob (47) and a plurality of connecting claws (48), the medicine dispensing device is characterized in that the connecting seat (43) is fixed on the medicine outlet, a first hole (49) for the feeding pipe (11) to pass through is formed in the center of the connecting seat (43), an annular first groove (40) is formed in one end, provided with the first hole (49), of the connecting seat (43), the connecting disk (44) is rotatably arranged in the first groove (40), a transmission tooth (51) is arranged on one end face of the connecting disk (44), a threaded ridge (52) is arranged on the other end face of the connecting disk, an operating hole (53) is formed in the side wall of the first groove (40), the connecting gear (45) and the knob (47) are coaxially fixed at two ends of the connecting rod (46) respectively, the connecting rod (46) is rotatably arranged in the operating hole (53), the connecting gear (45) is arranged in the first groove (40) and meshed with the transmission tooth (51), a plurality of second holes (54) penetrating through the first groove (40) are formed in the connecting seat (43), the connecting claws (48) are respectively arranged in the second holes (54) in a sliding mode, the connecting claws (48) are respectively fixed with a transmission block (55), the transmission block (55) is matched with the thread ridge (52) so that the connecting claws (48) are driven to approach or disperse mutually when the connecting disc (44) rotates, and therefore the feeding pipe (11) is fixed or released.
2. A self cleaning sink system according to claim 1, wherein: be provided with annular concave station (19) on the inner wall of medicine outlet, it is protruding (20) that are used for embedding concave station (19) to be provided with on feeding pipe (11), seal groove (21) have been seted up on the lateral wall of concave station (19), be provided with sealing washer (22) in seal groove (21).
3. A self cleaning sink system according to claim 2, wherein: the stirring device comprises a waterproof motor (17) and an impeller (18), wherein the waterproof motor (17) is arranged in the coagulation tank (1), and the impeller (18) is coaxially fixed with a rotating shaft of the waterproof motor (17).
4. A self cleaning sink system according to claim 3, wherein: be provided with the filter in filtering ponds (3), first chamber and second chamber are separated into with filtering ponds (3) to the filter, the filter includes rack (61), ceramic filter core (62) and active carbon filter core (63), be provided with first cavity and second cavity in rack (61), first cavity sets up the top at the second cavity, ceramic filter core (62) are fixed in first cavity, active carbon filter core (63) set up in the second cavity.
5. A self cleaning sink system according to claim 4, wherein: the inner wall of the filtering tank (3) is provided with a supporting block (64), and the net rack (61) is placed on the supporting block (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407391.7A CN108395022B (en) | 2018-04-28 | 2018-04-28 | Self-cleaning formula pond system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407391.7A CN108395022B (en) | 2018-04-28 | 2018-04-28 | Self-cleaning formula pond system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108395022A CN108395022A (en) | 2018-08-14 |
| CN108395022B true CN108395022B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810407391.7A Active CN108395022B (en) | 2018-04-28 | 2018-04-28 | Self-cleaning formula pond system |
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| CN (1) | CN108395022B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201245484Y (en) * | 2008-05-08 | 2009-05-27 | 广州市盾建地下工程有限公司 | Integrated sewage purification processing unit for architectural engineering |
| CN202130881U (en) * | 2011-06-02 | 2012-02-01 | 广州科城环保科技有限公司 | Solid powder constant speed feeding device |
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2018
- 2018-04-28 CN CN201810407391.7A patent/CN108395022B/en active Active
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| CN108395022A (en) | 2018-08-14 |
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