CN111847621A - Multi-stage medicament online adding device for sewage treatment equipment - Google Patents
Multi-stage medicament online adding device for sewage treatment equipment Download PDFInfo
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- CN111847621A CN111847621A CN202010859649.4A CN202010859649A CN111847621A CN 111847621 A CN111847621 A CN 111847621A CN 202010859649 A CN202010859649 A CN 202010859649A CN 111847621 A CN111847621 A CN 111847621A
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- plate
- rectangular
- medicament
- sewage treatment
- feeding
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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
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/685—Devices for dosing the additives
- C02F1/687—Devices for dosing solid compounds
Abstract
The invention discloses a multi-stage medicament online adding device for sewage treatment equipment, and relates to the technical field of sewage treatment equipment. The device comprises a rectangular material groove, wherein a plurality of material feeding ports are formed in the bottom side surface of the rectangular material groove, material feeding pipes are arranged at the material feeding ports, a plurality of medicament feeding devices are arranged at the top of the rectangular material groove, and material discharging ports of the medicament feeding devices are positioned right above the rectangular material groove; the outer side of the rectangular trough is provided with a plurality of L-shaped fixed arms, the end portions of the L-shaped fixed arms are provided with tracks which are arranged in parallel with the rectangular trough, electric sliders are arranged on the tracks, the end portions of the electric sliders are provided with transverse arms, and the bottom ends of the transverse arms are connected with a scraping plate through a connecting piece. According to the invention, through the arrangement of the scraper plate and the rectangular trough, the same blanking amount from any one feeding port at the bottom side of the rectangular trough is ensured in the medicament feeding process, so that the sewage treatment medicament is conveniently and uniformly fed onto the sewage surface, and the use effect of the medicament and the sewage treatment effect are improved.
Description
Technical Field
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to a multi-stage medicament online adding device for sewage treatment equipment.
Background
Sewage treatment is a process of purifying sewage to meet the requirement of draining a certain water body or reusing the water body. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.
The sewage treatment agent is an additive needed in sewage treatment as the name implies, and polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, nonionic polyacrylamide, zwitterionic polyacrylamide, polyaluminium chloride and the like can be used as the sewage treatment agent in different applications. The water quantity fluctuation of a sewage treatment plant is large at the initial stage of operation, and in order to better eliminate the influence of the water quantity fluctuation on the stable standard of effluent, emergency medicament adding can often occur in part of treatment units, and the medicament adding link is a key point.
Current charge device has whole fixed point to drop into the mode when using, and this kind of mode exists that the medicament often adds in a place, needs to spend a large amount of time when causing the use and stirs, and the medicament adds inhomogeneously to it is low to cause the sewage treatment effect, causes the extravagant scheduling problem of medicament.
Disclosure of Invention
The invention aims to provide a multi-stage medicament online adding device for sewage treatment equipment, which aims to solve the problems.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a multi-stage medicament online adding device for sewage treatment equipment, which comprises a rectangular trough, wherein the bottom side surface of the rectangular trough is provided with a plurality of feeding ports, feeding pipes are arranged at the feeding ports, and the top of the rectangular trough is provided with an 'eight' -shaped extending part; the top of the rectangular trough is provided with a plurality of medicament adding devices, and the feed openings of the medicament adding devices are positioned right above the rectangular trough;
the outer side of the rectangular trough is provided with a plurality of L-shaped fixed arms, the end parts of the L-shaped fixed arms are provided with tracks which are arranged in parallel with the rectangular trough, electric sliders capable of moving along the tracks are arranged on the tracks, the end parts of the electric sliders are provided with a cross arm, and the bottom end of the cross arm is connected with a scraper through a connecting piece;
the bottom ends of two adjacent L-shaped fixing arms positioned on one side of the center of the rectangular trough are provided with a fixing plate, the bottom end of the fixing plate is provided with a telescopic cylinder, the end part of the telescopic cylinder is provided with a transverse plate arranged in parallel with the track, one side of the transverse plate is provided with a plurality of baffle plates matched with the feeding pipes one by one, and one side of each baffle plate is fixed on one side of the transverse plate through a connecting plate; a reverse V-shaped material guide baffle plate is arranged on the bottom side surface of the rectangular material groove between two adjacent material feeding ports.
Furthermore, the feeding pipe is of a rectangular tubular structure, the baffle is a rectangular plate, and a rectangular pyramid is arranged at the center of the baffle; the baffle is characterized in that the four edge sides of the baffle are respectively provided with a flow guide inclined plane, and a step part which is abutted against the port of the feeding pipe is formed on the baffle between the rectangular pyramid and the flow guide inclined plane.
Furthermore, the connecting piece comprises a rectangular pipe and a rectangular column which are movably sleeved with each other; one opposite side surface of the rectangular tube is respectively provided with a waist-shaped hole, and one opposite side surface of the end part of the rectangular column is respectively provided with a convex column matched with the waist-shaped hole; and one side of the bottom end of the rectangular pipe is provided with a locking bolt A matched with the rectangular column.
Further, the end part of the rectangular tube is fixed at the bottom end of the cross arm; the top of the scraper is connected with the rectangular column.
Further, the scraper is in an isosceles trapezoid structure; the scraping plate comprises a first plate and a second plate which are matched with each other; one side of the first plate is provided with a first inclined plane matched with the splayed extending part, and one side of the second plate is provided with a second inclined plane matched with the splayed extending part; a slot which is in inserting fit with the second plate is formed in the other side of the first plate, guide sliding grooves are formed in two side faces of the second plate, and guide sliding blocks which are matched with the guide sliding grooves are arranged on the inner wall of the slot; one end of the first plate close to the second plate is provided with at least one locking bolt B; and the top of the first plate is provided with a connecting block connected with a connecting piece.
Further, the first plate and the second plate are both of a right-angled trapezoid structure.
Further, the bottom sides of the first plate and the second plate are coplanar.
The invention has the following beneficial effects:
according to the invention, through the arrangement of the scraper plate and the rectangular trough, the same blanking amount from any one feeding port at the bottom side of the rectangular trough is ensured in the medicament feeding process, so that the sewage treatment medicament is conveniently and uniformly fed onto the sewage surface, and the use effect of the medicament and the sewage treatment effect are improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a multi-stage online drug adding device according to the present invention;
FIG. 2 is a right side view of FIG. 1;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 32 3; 3
FIG. 4 is a schematic view of the baffle structure of the present invention;
FIG. 5 is a first schematic view of the scraper structure of the present invention;
FIG. 6 is a second schematic view of the scraper structure of the present invention;
fig. 7 is a schematic view of the structure of the connector of the present invention.
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.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-7, the present invention is a multi-stage medicament online adding device for sewage treatment equipment, including a rectangular trough 1, the bottom side of the rectangular trough 1 is provided with a plurality of feeding ports 10, feeding pipes 11 are arranged at the feeding ports 10, and the top of the rectangular trough 1 is provided with an "eight" shaped extension 12; the top of the rectangular trough 1 is provided with a plurality of medicament adding devices, and the feed openings of the medicament adding devices are positioned right above the rectangular trough 1;
a plurality of L-shaped fixed arms 14 are arranged on the outer side of the rectangular trough 1, the end parts of the L-shaped fixed arms 14 are provided with tracks 15 which are arranged in parallel with the rectangular trough 1, electric sliders 16 which can move along the tracks 15 are arranged on the tracks 15, the end parts of the electric sliders 16 are provided with a cross arm 17, and the bottom end of the cross arm 17 is connected with a scraping plate 3 through a connecting piece 2;
the bottom ends of two adjacent L-shaped fixing arms 14 positioned on one side of the center of the rectangular trough 1 are provided with a fixing plate 181, the bottom end of the fixing plate 181 is provided with a telescopic cylinder 18, the end part of the telescopic cylinder 18 is provided with a transverse plate 19 arranged in parallel with the track 15, one side of the transverse plate 19 is provided with a plurality of baffle plates 41 matched with the feeding pipes 11 one by one, and one side of each baffle plate 41 is fixed on one side of the transverse plate 19 through a connecting plate 4; a reverse V-shaped material guide baffle plate 13 is arranged on the bottom side surface of the rectangular trough 1 between two adjacent material feeding ports 10.
Preferably, the feeding pipe 11 is a rectangular pipe structure, the baffle plate 41 is a rectangular plate, and the rectangular pyramid 44 is arranged at the center of the baffle plate 41; the baffle 41 is provided with diversion slopes 42 on four edge sides, and a step 43 abutting on the port of the feeding pipe 11 is formed on the baffle 41 between the rectangular pyramid 44 and the diversion slopes 42.
Preferably, the connecting piece 2 comprises a rectangular tube 21 and a rectangular column 22 which are movably sleeved with each other; one opposite two side surfaces of the rectangular tube 21 are respectively provided with a waist-shaped hole 23, and one opposite two side surfaces of the end part of the rectangular column 22 are respectively provided with a convex column 24 matched with the waist-shaped hole 23; the rectangular tube 21 is provided at a bottom end side thereof with a locking bolt a25 engaged with the rectangular column 22.
Preferably, the end of the rectangular tube 21 is fixed to the bottom end of the cross arm 17; the top of the screed 3 is connected to a rectangular column 22.
Preferably, the scraper 3 is in an isosceles trapezoid structure; the scraper 3 comprises a first plate 31 and a second plate 32 which are matched with each other; one side of the first plate 31 is provided with a first inclined surface 311 matched with the splayed extension part 12, and one side of the second plate 32 is provided with a second inclined surface 321 matched with the splayed extension part 12; the other side of the first plate 31 is provided with a slot 312 which is in inserted connection and matching with the second plate 32, two side surfaces of the second plate 32 are both provided with guide chutes 322, and the inner wall of the slot 312 is provided with a guide sliding block 315 which is matched with the guide chutes 322; one end of the first plate 31 close to the second plate 32 is provided with at least one locking bolt B313; the top of the first plate 31 is provided with a connection block 314 connected to the connection member 2.
Preferably, the first plate 31 and the second plate 32 are both a right-angled trapezoidal structure.
Preferably, the bottom sides of the first plate 31 and the second plate 32 are coplanar.
When the device is used, the medicine to be added is injected into the rectangular trough 1 through the medicine adding device above the rectangular trough 1, the connecting piece 2 is adjusted to stretch up and down according to the injection amount of the medicine, and the first plate 31 and the second plate 32 of the scraper 3 are adjusted to move left and right, so that the granular or powdery medicine in the rectangular trough 1 is basically in one plane after the scraper 3 is used for scraping, namely the medicine amount at each feed opening 10 is ensured to be the same, namely the medicine amount added into the treatment tank from each feed opening 10 is ensured to be the same;
controlling the electric slide block 16 to move along the track 15, thereby realizing the leveling of the particles or the powdery medicament in the rectangular trough 1 through the scraper 3;
after leveling, the telescopic cylinder 18 is controlled to extend out, a gap is formed at the port of the baffle plate 41 and the feeding pipe 11, and at the moment, the particles or the powdery medicament in the rectangular trough 1 fall into the treatment tank from the gap, so that the same dosage in each area in the treatment tank is ensured, and the poor sewage treatment effect caused by uneven feeding is avoided;
simultaneously, through the arrangement of the rectangular pyramid 44, the dosage of the medicament from the leaking position of the feeding pipe 11 to all directions is ensured to be equivalent, and meanwhile, through the arrangement of the step part 43, the medicament of the rectangular trough 1 under the normal condition is prevented from leaking from the port position of the feeding pipe 11.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a sewage treatment is online device that adds of multistage medicament for equipment which characterized in that: the material feeding device comprises a rectangular material groove (1), wherein a plurality of feeding ports (10) are formed in the bottom side surface of the rectangular material groove (1), a feeding pipe (11) is arranged at the feeding ports (10), and an eight-shaped extending part (12) is arranged at the top of the rectangular material groove (1);
the top of the rectangular trough (1) is provided with a plurality of medicament adding devices, and the feed openings of the medicament adding devices are positioned right above the rectangular trough (1);
a plurality of L-shaped fixed arms (14) are arranged on the outer side of the rectangular trough (1), a track (15) which is parallel to the rectangular trough (1) is arranged at the end parts of the L-shaped fixed arms (14), an electric sliding block (16) which can move along the track (15) is arranged on the track (15), a cross arm (17) is arranged at the end part of the electric sliding block (16), and the bottom end of the cross arm (17) is connected with a scraping plate (3) through a connecting piece (2);
the bottom ends of two adjacent L-shaped fixing arms (14) positioned on one side of the center of the rectangular trough (1) are provided with a fixing plate (181), the bottom end of the fixing plate (181) is provided with a telescopic cylinder (18), the end part of the telescopic cylinder (18) is provided with a transverse plate (19) arranged in parallel with the track (15), one side of the transverse plate (19) is provided with a plurality of baffle plates (41) matched with the feeding pipes (11) one by one, and one side of each baffle plate (41) is fixed on one side of the transverse plate (19) through a connecting plate (4);
an inverted V-shaped material guide baffle plate (13) is arranged on the bottom side surface of the rectangular material groove (1) between two adjacent material feeding ports (10).
2. The on-line adding device of the multi-stage medicament for the sewage treatment equipment according to claim 1, wherein the feeding pipe (11) is a rectangular tubular structure, the baffle (41) is a rectangular plate, and the baffle (41) is provided with a rectangular pyramid (44) at the center;
the four edge sides of the baffle plate (41) are respectively provided with a flow guide inclined plane (42), and a step part (43) which is abutted to the port of the feeding pipe (11) is formed on the baffle plate (41) between the rectangular pyramid (44) and the flow guide inclined plane (42).
3. The multi-stage medicament online adding device for the sewage treatment equipment according to claim 1, wherein the connecting piece (2) comprises a rectangular pipe (21) and a rectangular column (22) which are movably sleeved with each other;
one opposite side surface of the rectangular tube (21) is respectively provided with a waist-shaped hole (23), and one opposite side surface of the end part of the rectangular column (22) is respectively provided with a convex column (24) matched with the waist-shaped hole (23); and one side of the bottom end of the rectangular pipe (21) is provided with a locking bolt A (25) matched with the rectangular column (22).
4. The multistage online chemical adding device for the sewage treatment equipment according to claim 3, wherein the end of the rectangular tube (21) is fixed to the bottom end of the cross arm (17); the top of the scraper (3) is connected with a rectangular column (22).
5. The multi-stage medicament online adding device for the sewage treatment equipment according to any one of claims 1 to 4, wherein the scraping plate (3) is in an isosceles trapezoid structure;
the scraper (3) comprises a first plate (31) and a second plate (32) which are matched with each other;
one side of the first plate (31) is provided with a first inclined surface (311) matched with the splayed extension part (12), and one side of the second plate (32) is provided with a second inclined surface (321) matched with the splayed extension part (12);
a slot (312) which is in plug fit with the second plate (32) is formed in the other side of the first plate (31), guide sliding grooves (322) are formed in two side faces of the second plate (32), and guide sliding blocks (315) which are matched with the guide sliding grooves (322) are arranged on the inner wall of the slot (312);
one end of the first plate (31) close to the second plate (32) is provided with at least one locking bolt B (313);
the top of the first plate (31) is provided with a connecting block (314) connected with the connecting piece (2).
6. The multistage online chemical adding device for the sewage treatment equipment according to claim 5, wherein the first plate (31) and the second plate (32) are both in a right-angle trapezoidal structure.
7. The multistage online chemical adding device for the sewage treatment equipment according to claim 5, wherein the bottom sides of the first plate (31) and the second plate (32) are coplanar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010859649.4A CN111847621A (en) | 2020-08-24 | 2020-08-24 | Multi-stage medicament online adding device for sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010859649.4A CN111847621A (en) | 2020-08-24 | 2020-08-24 | Multi-stage medicament online adding device for sewage treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111847621A true CN111847621A (en) | 2020-10-30 |
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ID=72967869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010859649.4A Pending CN111847621A (en) | 2020-08-24 | 2020-08-24 | Multi-stage medicament online adding device for sewage treatment equipment |
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| CN (1) | CN111847621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744878A (en) * | 2020-12-14 | 2021-05-04 | 罗静峰 | Sewage treatment pond is with broken automatic even laying of treating agent and is equipped with |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286909A (en) * | 1978-04-12 | 1981-09-01 | Ab Siwertell | Apparatus for unloading bulk material from a storage space |
| CN200939943Y (en) * | 2006-08-07 | 2007-08-29 | 郑爱兵 | Quantitative feeding apparatus |
| CN204110657U (en) * | 2014-09-30 | 2015-01-21 | 广州原野实业有限公司 | A kind of powder material warehouse |
| US20160040369A1 (en) * | 2014-08-06 | 2016-02-11 | Dynapac (China) Compaction & Paving Equipment Co., Ltd. | Telescopic screed and paving machine thereof |
| CN208182241U (en) * | 2018-05-10 | 2018-12-04 | 温州捷高科技有限公司 | A kind of scraping device for Chinese medicine production |
| CN209023511U (en) * | 2018-11-14 | 2019-06-25 | 河南赛利特建筑材料有限公司 | A kind of mechanism sand warehouse cylinder with long service life |
| CN209958181U (en) * | 2019-04-29 | 2020-01-17 | 北京华创空港工程有限公司 | Concrete flattening device convenient to stretch and adjust |
| CN210803059U (en) * | 2019-10-24 | 2020-06-19 | 陈兴桥 | A novel tablet press for infrared sign detects |
-
2020
- 2020-08-24 CN CN202010859649.4A patent/CN111847621A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286909A (en) * | 1978-04-12 | 1981-09-01 | Ab Siwertell | Apparatus for unloading bulk material from a storage space |
| CN200939943Y (en) * | 2006-08-07 | 2007-08-29 | 郑爱兵 | Quantitative feeding apparatus |
| US20160040369A1 (en) * | 2014-08-06 | 2016-02-11 | Dynapac (China) Compaction & Paving Equipment Co., Ltd. | Telescopic screed and paving machine thereof |
| CN204110657U (en) * | 2014-09-30 | 2015-01-21 | 广州原野实业有限公司 | A kind of powder material warehouse |
| CN208182241U (en) * | 2018-05-10 | 2018-12-04 | 温州捷高科技有限公司 | A kind of scraping device for Chinese medicine production |
| CN209023511U (en) * | 2018-11-14 | 2019-06-25 | 河南赛利特建筑材料有限公司 | A kind of mechanism sand warehouse cylinder with long service life |
| CN209958181U (en) * | 2019-04-29 | 2020-01-17 | 北京华创空港工程有限公司 | Concrete flattening device convenient to stretch and adjust |
| CN210803059U (en) * | 2019-10-24 | 2020-06-19 | 陈兴桥 | A novel tablet press for infrared sign detects |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744878A (en) * | 2020-12-14 | 2021-05-04 | 罗静峰 | Sewage treatment pond is with broken automatic even laying of treating agent and is equipped with |
| CN112744878B (en) * | 2020-12-14 | 2023-11-10 | 江苏康世源药业有限公司 | Automatic even-paving equipment for crushing treatment agent for sewage treatment tank |
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Application publication date: 20201030 |
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