CN111717993A - Composite carbon source for culturing anaerobic microorganisms for sewage treatment - Google Patents
Composite carbon source for culturing anaerobic microorganisms for sewage treatment Download PDFInfo
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- CN111717993A CN111717993A CN202010609084.4A CN202010609084A CN111717993A CN 111717993 A CN111717993 A CN 111717993A CN 202010609084 A CN202010609084 A CN 202010609084A CN 111717993 A CN111717993 A CN 111717993A
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- carbon source
- rotating shaft
- crushing
- shell
- culturing
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Abstract
The invention discloses a composite carbon source for culturing anaerobic microorganisms for sewage treatment, belongs to the technical field of microorganism culture, and solves the problem that the existing device cannot crush a carbon source, so that the contact between the carbon source and a culture substrate is insufficient; the technical characteristics are as follows: the device comprises a storage cavity and a shell, wherein the storage cavity is connected with the shell through a diversion bin, a material conveying assembly is arranged at the upper part of the shell, a mixing assembly is arranged at the bottom of the shell, two lower diversion plates are symmetrically arranged at the bottom of the shell, a feeding hole is formed in the side wall of the storage cavity, the diversion bin is communicated with the side wall of the storage cavity through a diversion pipe, and an air pump is arranged in the diversion bin; the embodiment of the invention is provided with the mixing component, so that the materials in the shell are fully stirred and mixed, and the stirring component is arranged so as to crush the carbon source and avoid the caking of the carbon source, thereby improving the contact area between the carbon source and the culture medium.
Description
Technical Field
The invention relates to the technical field of microorganism culture, in particular to a composite carbon source for culturing anaerobic microorganisms for sewage treatment.
Background
At present, most of domestic and foreign sewage treatment plants adopt a biological method for sewage treatment, denitrification mainly depends on nitrification and denitrification of microorganisms, the denitrification of the microorganisms needs enough carbon sources to provide electrons, researches show that the carbon-nitrogen ratio is 4-9 and is more suitable for the denitrification of the microorganisms, and the carbon-nitrogen ratio of denitrification sections of many sewage treatment plants is less than 3, so that a large amount of additional carbon sources are needed.
Chinese patent CN208071420U discloses a slow-release composite carbon source rapid-separation denitrification ball, relates to the technical field of biological water treatment equipment, and solves the problem of insufficient carbon source in a denitrification section. The slow-release type composite carbon source rapid-separation denitrification sphere comprises a spherical shell, a slow-release carbon source filler, a biological denitrification filler, a wrapping structure and a counterweight device, wherein the spherical shell is of a latticed structure and is made of a polypropylene material; the slow-release carbon source filler is a wood block soaked by alkali liquor, the biological denitrification filler is a polyurethane foam block, the counterweight device is a stone, the wrapping structure is made of an iron wire net, the wood block and the polyurethane foam are wrapped by the iron wire net and then placed into the spherical shell, but the device cannot crush the carbon source, so that the contact between the carbon source and a culture substrate is insufficient, and therefore, the composite carbon source for culturing the sewage treatment anaerobic microorganisms is provided.
Disclosure of Invention
The invention aims to provide a composite carbon source for culturing anaerobic microorganisms for sewage treatment, which comprises a storage cavity and a shell, wherein the storage cavity is connected with the shell through a diversion bin, a material conveying assembly is arranged at the upper part of the shell, a mixing assembly is arranged at the bottom of the shell, two lower diversion plates are symmetrically arranged at the bottom of the shell, a feed inlet is formed in the side wall of the storage cavity, the diversion bin is communicated with the side wall of the storage cavity through a diversion pipe, and an air pump is arranged in the diversion bin, so that the problem that the existing device cannot crush carbon sources, and the carbon sources are not in sufficient contact with culture mediums is solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a sewage treatment anaerobic microorganisms's cultivation is with compound carbon source, is including storing chamber and casing, stores and connects through the water conservancy diversion storehouse between chamber and the casing, and the upper portion of casing is equipped with defeated material subassembly, and the bottom of casing is equipped with mixed subassembly, and the bottom symmetry of casing is equipped with two lower guide plates, and the lateral wall of storing the chamber is equipped with the feed inlet, and the water conservancy diversion storehouse passes through the lateral wall intercommunication of honeycomb duct and storage chamber, is equipped with the air pump in the water conservancy diversion storehouse.
As a further scheme of the invention: defeated material subassembly includes first servo motor, first pivot and auger, and first servo motor fixed mounting is on the lateral wall of casing, and the first pivot of first servo motor's output fixedly connected with, and the one end that first servo motor was kept away from to first pivot extends to in the casing, and rotates through the lateral wall of bearing and casing to be connected, and the equipartition has a plurality of augers and the stirring subassembly that are used for defeated material in the first pivot.
As a still further scheme of the invention: the packing auger and the stirring component are arranged in a staggered mode, and the packing auger is made of stainless steel.
As a still further scheme of the invention: the stirring assembly comprises a first crushing paddle and a second crushing paddle, the first crushing paddle and the second crushing paddle are perpendicularly intersected, the first crushing paddle and the second crushing paddle are connected through a buckle, and the second crushing paddle and the first rotating shaft are fixedly connected through a bolt.
As a still further scheme of the invention: the below of defeated material subassembly is equipped with the screening subassembly, and the screening subassembly includes guide plate and screen cloth, goes up the guide plate slope and sets up, and the bottom fixed mounting who goes up the guide plate has the screen cloth, goes up the guide plate and goes up fixed mounting and have the scum board, and the scum board slope sets up.
As a still further scheme of the invention: the mixing assembly comprises a second rotating shaft and a second servo motor, the second servo motor is fixedly installed in the center of the bottom surface of the shell, the output end of the second servo motor is connected with the second rotating shaft in an interference fit mode, a plurality of stirring paddles are longitudinally and uniformly distributed on the second rotating shaft, and the stirring paddles are fixedly connected with the second rotating shaft through bolts.
As a still further scheme of the invention: the inner wall symmetry of casing is equipped with two crushing sawtooth mount pads, and vertical equipartition has a plurality of crushing teeth on the crushing sawtooth mount pad, smashes through bolt fixed connection between sawtooth mount pad and the crushing tooth, and the top fixed mounting of second pivot has broken head.
In conclusion, the beneficial effects of the invention are as follows: the embodiment of the invention is provided with the mixing component, so that the materials in the shell are fully stirred and mixed, and the stirring component is arranged so as to crush the carbon source and avoid the caking of the carbon source, thereby improving the contact area between the carbon source and the culture medium.
Drawings
Fig. 1 is a schematic structural diagram of the invention.
FIG. 2 is a schematic view of the structure of the storage chamber of the present invention.
FIG. 3 is a schematic structural diagram of a stirring assembly according to the present invention.
Fig. 4 is a schematic structural diagram of the slag discharging plate in the invention.
FIG. 5 is a schematic view of a saw tooth comminution mounting block according to the present invention.
In the figure: 1-storage cavity, 2-feed inlet, 3-shell, 4-diversion bin, 5-first servo motor, 6-first rotating shaft, 7-auger, 8-stirring component, 9-upper diversion plate, 10-slag discharge plate, 11-screen, 12-crushing sawtooth mounting seat, 13-crushing tooth, 14-crushing head, 15-stirring paddle, 16-second rotating shaft, 17-lower diversion plate, 18-second servo motor, 19-first crushing paddle and 20-second crushing paddle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in FIG. 1, in the embodiment of the invention, the composite carbon source for culturing the anaerobic microorganisms for sewage treatment comprises a storage cavity 1 and a shell 3, wherein the storage cavity 1 is connected with the shell 3 through a diversion bin 4, a material conveying component is arranged at the upper part of the shell 3, and a mixing component is arranged at the bottom of the shell 3;
as shown in fig. 2, the side wall of the storage chamber 1 is provided with a feed port 2;
the diversion bin 4 is communicated with the side wall of the storage cavity 1 through a diversion pipe, an air pump is arranged in the diversion bin 4, the air pump is the prior art, and the type is not limited herein;
the material conveying assembly comprises a first servo motor 5, a first rotating shaft 6 and an auger 7, the first servo motor 5 is fixedly arranged on the side wall of the shell 3, the output end of the first servo motor 5 is fixedly connected with the first rotating shaft 6, one end, far away from the first servo motor 5, of the first rotating shaft 6 extends into the shell 3 and is rotatably connected with the side wall of the shell 3 through a bearing, and a plurality of augers 7 and stirring assemblies 8 for conveying materials are uniformly distributed on the first rotating shaft 6;
the packing auger 7 and the stirring component 8 are arranged in a staggered manner, and the packing auger 7 is made of stainless steel, so that the hardness of the packing auger 7 is ensured, and the effect of crushing a carbon source can be achieved;
as shown in fig. 3, the stirring assembly 8 includes a first crushing paddle 19 and a second crushing paddle 20, the first crushing paddle 19 and the second crushing paddle 20 are vertically intersected, the first crushing paddle 19 and the second crushing paddle 20 are connected by a buckle, and the second crushing paddle 20 is fixedly connected with the first rotating shaft 6 by a bolt;
when the carbon source is required to be conveyed, the first servo motor 5 is started, the first servo motor 5 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the packing auger 7 and the stirring assembly 8 to rotate, so that the carbon source is conveyed, the carbon source is crushed by the stirring assembly 8, the carbon source is prevented from caking, and the contact area between the carbon source and the culture medium is increased.
The below of defeated material subassembly is equipped with the screening subassembly, and the screening subassembly includes guide plate 9 and screen cloth 11, and guide plate 9 slope setting goes up, and the bottom fixed mounting who goes up guide plate 9 has screen cloth 11, and screen cloth 11 sets up and has realized the screening to impurity in the carbon source, has avoided the stained microorganism of existence of impurity, does benefit to the cultivation to the microorganism.
Example 2
As shown in FIG. 1, in the embodiment of the invention, the composite carbon source for culturing the anaerobic microorganisms for sewage treatment comprises a storage cavity 1 and a shell 3, wherein the storage cavity 1 is connected with the shell 3 through a diversion bin 4, a material conveying component is arranged at the upper part of the shell 3, and a mixing component is arranged at the bottom of the shell 3;
as shown in fig. 2, the side wall of the storage chamber 1 is provided with a feed port 2;
the diversion bin 4 is communicated with the side wall of the storage cavity 1 through a diversion pipe, an air pump is arranged in the diversion bin 4, the air pump is the prior art, and the type is not limited herein;
the material conveying assembly comprises a first servo motor 5, a first rotating shaft 6 and an auger 7, the first servo motor 5 is fixedly arranged on the side wall of the shell 3, the output end of the first servo motor 5 is fixedly connected with the first rotating shaft 6, one end, far away from the first servo motor 5, of the first rotating shaft 6 extends into the shell 3 and is rotatably connected with the side wall of the shell 3 through a bearing, and a plurality of augers 7 and stirring assemblies 8 for conveying materials are uniformly distributed on the first rotating shaft 6;
the packing auger 7 and the stirring component 8 are arranged in a staggered manner, and the packing auger 7 is made of stainless steel, so that the hardness of the packing auger 7 is ensured, and the effect of crushing a carbon source can be achieved;
as shown in fig. 3, the stirring assembly 8 includes a first crushing paddle 19 and a second crushing paddle 20, the first crushing paddle 19 and the second crushing paddle 20 are vertically intersected, the first crushing paddle 19 and the second crushing paddle 20 are connected by a buckle, and the second crushing paddle 20 is fixedly connected with the first rotating shaft 6 by a bolt;
when the carbon source is required to be conveyed, the first servo motor 5 is started, the first servo motor 5 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the packing auger 7 and the stirring assembly 8 to rotate, so that the carbon source is conveyed, the carbon source is crushed by the stirring assembly 8, the carbon source is prevented from caking, and the contact area between the carbon source and the culture medium is increased.
The below of defeated material subassembly is equipped with the screening subassembly, and the screening subassembly includes guide plate 9 and screen cloth 11, and guide plate 9 slope setting goes up, and the bottom fixed mounting who goes up guide plate 9 has screen cloth 11, and screen cloth 11 sets up and has realized the screening to impurity in the carbon source, has avoided the stained microorganism of existence of impurity, does benefit to the cultivation to the microorganism.
As shown in fig. 4, a slag discharging plate 10 is fixedly installed on the upper guide plate 9, the slag discharging plate 10 is obliquely arranged, and the arrangement of the slag discharging plate 10 realizes the flow guide of impurities, thereby facilitating the discharge of the impurities;
the mixing component comprises a second rotating shaft 16 and a second servo motor 18, the second servo motor 18 is fixedly arranged at the center of the bottom surface of the shell 3, the output end of the second servo motor 18 is connected with the second rotating shaft 16 in an interference fit manner, a plurality of stirring paddles 15 are longitudinally and uniformly distributed on the second rotating shaft 16, and the stirring paddles 15 are fixedly connected with the second rotating shaft 16 through bolts;
as shown in fig. 5, two crushing sawtooth installation seats 12 are symmetrically arranged on the inner wall of the shell 3, a plurality of crushing teeth 13 are longitudinally and uniformly distributed on the crushing sawtooth installation seats 12, and the crushing sawtooth installation seats 12 and the crushing teeth 13 are fixedly connected through bolts.
The top of the second rotating shaft 16 is fixedly provided with a crushing head 14;
two lower guide plates 17 are symmetrically arranged at the bottom of the shell 3, and the arrangement of the lower guide plates 17 facilitates the discharge of carbon sources.
In summary, the working principle of the invention is as follows: when the carbon source needs to be conveyed, the first servo motor 5 is started, the first servo motor 5 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the packing auger 7 and the stirring assembly 8 to rotate, so that the carbon source is conveyed, the carbon source is crushed by the stirring assembly 8, the carbon source is prevented from caking, and the contact area between the carbon source and the culture medium is increased;
when the carbon source and the culture medium need to be fully stirred and mixed, the second servo motor 18 is started, the second servo motor 18 drives the crushing head 14 and the second rotating shaft 16 to rotate, the second rotating shaft 16 drives the stirring paddle 15 to rotate, and meanwhile, the crushing teeth 13 are matched to work, so that the materials in the shell 3 are fully stirred and mixed.
The embodiment of the invention is provided with the mixing component, so that the materials in the shell 3 are fully stirred and mixed, and the stirring component 8 is arranged so as to crush the carbon source and avoid the caking of the carbon source, thereby improving the contact area between the carbon source and the culture medium.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are only for the convenience of description of the invention and to simplify the description, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a sewage treatment anaerobe's cultivation is with compound carbon source, is connected through water conservancy diversion storehouse (4) including storing chamber (1) and casing (3) between storing chamber (1) and casing (3), its characterized in that, and the upper portion of casing (3) is equipped with defeated material subassembly, and the bottom of casing (3) is equipped with mixed subassembly, and the bottom symmetry of casing (3) is equipped with two lower guide plates (17).
2. The composite carbon source for culturing anaerobic microorganisms for wastewater treatment according to claim 1, wherein the side wall of the storage chamber (1) is provided with a feed inlet (2).
3. The composite carbon source for culturing anaerobic microorganisms for sewage treatment according to claim 2, wherein the diversion chamber (4) is communicated with the side wall of the storage chamber (1) through a diversion pipe, and an air pump is arranged in the diversion chamber (4).
4. The composite carbon source for culturing the sewage treatment anaerobic microorganisms according to claim 3, wherein the material conveying component comprises a first servo motor (5), a first rotating shaft (6) and an auger (7), the first servo motor (5) is fixedly installed on the side wall of the shell (3), the output end of the first servo motor (5) is fixedly connected with the first rotating shaft (6), one end, far away from the first servo motor (5), of the first rotating shaft (6) extends into the shell (3) and is rotatably connected with the side wall of the shell (3) through a bearing, and the auger (7) and the stirring component (8) used for conveying materials are uniformly distributed on the first rotating shaft (6).
5. The composite carbon source for culturing the anaerobic microorganisms for wastewater treatment according to claim 4, wherein the auger (7) and the stirring assembly (8) are arranged in a staggered manner.
6. The composite carbon source for culturing the anaerobic microorganisms for wastewater treatment according to claim 4, wherein the packing auger (7) is made of stainless steel.
7. The composite carbon source for culturing the anaerobic microorganisms for wastewater treatment according to any one of claims 4 to 6, wherein the stirring assembly (8) comprises a first crushing paddle (19) and a second crushing paddle (20), the first crushing paddle (19) and the second crushing paddle (20) are vertically crossed, the first crushing paddle (19) and the second crushing paddle (20) are connected through a buckle, and the second crushing paddle (20) and the first rotating shaft (6) are fixedly connected through a bolt.
8. The composite carbon source for culturing the anaerobic microorganisms for sewage treatment according to any one of claims 4 to 6, wherein a screening component is arranged below the material conveying component, the screening component comprises an upper guide plate (9) and a screen (11), the upper guide plate (9) is obliquely arranged, the screen (11) is fixedly arranged at the bottom of the upper guide plate (9), a deslagging plate (10) is fixedly arranged on the upper guide plate (9), and the deslagging plate (10) is obliquely arranged.
9. The composite carbon source for culturing the sewage treatment anaerobic microorganisms according to any one of claims 4 to 6, wherein the mixing assembly comprises a second rotating shaft (16) and a second servo motor (18), the second servo motor (18) is fixedly installed at the center of the bottom surface of the shell (3), the output end of the second servo motor (18) is connected with the second rotating shaft (16) in an interference fit manner, a plurality of stirring paddles (15) are longitudinally and uniformly distributed on the second rotating shaft (16), and the stirring paddles (15) are fixedly connected with the second rotating shaft (16) through bolts.
10. The composite carbon source for culturing the anaerobic microorganisms for sewage treatment according to any one of claims 4 to 6, wherein two crushing sawtooth installation seats (12) are symmetrically arranged on the inner wall of the housing (3), a plurality of crushing teeth (13) are uniformly distributed on the crushing sawtooth installation seats (12) in the longitudinal direction, the crushing sawtooth installation seats (12) and the crushing teeth (13) are fixedly connected through bolts, and the crushing head (14) is fixedly installed at the top of the second rotating shaft (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609084.4A CN111717993A (en) | 2020-06-29 | 2020-06-29 | Composite carbon source for culturing anaerobic microorganisms for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609084.4A CN111717993A (en) | 2020-06-29 | 2020-06-29 | Composite carbon source for culturing anaerobic microorganisms for sewage treatment |
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| CN111717993A true CN111717993A (en) | 2020-09-29 |
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| CN202010609084.4A Pending CN111717993A (en) | 2020-06-29 | 2020-06-29 | Composite carbon source for culturing anaerobic microorganisms for sewage treatment |
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| CN1503697A (en) * | 2001-04-28 | 2004-06-09 | 株式会社梦生活 | Automatic crushnig and sorting equipment of garbage and method for sorting out foreign substance in the garbage |
| US20170158540A1 (en) * | 2011-03-30 | 2017-06-08 | Ecolab Usa Inc. | Mixing apparatus for crushing sludge |
| CN206577680U (en) * | 2017-03-03 | 2017-10-24 | 河北天元药业有限公司 | A kind of veterinary drug processing mixer with crushing function |
| CN108404794A (en) * | 2018-03-27 | 2018-08-17 | 安徽过湾农业科技有限公司 | A kind of concentrated fertilizer mixing arrangement |
| CN109289674A (en) * | 2018-11-27 | 2019-02-01 | 柳倩 | A kind of solid-liquid pharmaceutical compounding device with crushing function |
| CN210358525U (en) * | 2019-06-25 | 2020-04-21 | 励拓安答(上海)环境工程技术有限公司 | Soil remediation environment-friendly device |
| CN210356768U (en) * | 2019-07-16 | 2020-04-21 | 九江双龙特种耐火材料有限公司 | Double-shaft mixing device for producing silicon carbide ceiling board |
| CN210700437U (en) * | 2019-08-22 | 2020-06-09 | 南京杰宁医药科技有限公司 | Quick smashing and mixing device for test medicament |
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2020
- 2020-06-29 CN CN202010609084.4A patent/CN111717993A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1503697A (en) * | 2001-04-28 | 2004-06-09 | 株式会社梦生活 | Automatic crushnig and sorting equipment of garbage and method for sorting out foreign substance in the garbage |
| JP2004521736A (en) * | 2001-04-28 | 2004-07-22 | ドリーム−バイオス カンパニー リミテッド | Automatic garbage sorting and crushing apparatus and foreign matter sorting method |
| US20170158540A1 (en) * | 2011-03-30 | 2017-06-08 | Ecolab Usa Inc. | Mixing apparatus for crushing sludge |
| CN206577680U (en) * | 2017-03-03 | 2017-10-24 | 河北天元药业有限公司 | A kind of veterinary drug processing mixer with crushing function |
| CN108404794A (en) * | 2018-03-27 | 2018-08-17 | 安徽过湾农业科技有限公司 | A kind of concentrated fertilizer mixing arrangement |
| CN109289674A (en) * | 2018-11-27 | 2019-02-01 | 柳倩 | A kind of solid-liquid pharmaceutical compounding device with crushing function |
| CN210358525U (en) * | 2019-06-25 | 2020-04-21 | 励拓安答(上海)环境工程技术有限公司 | Soil remediation environment-friendly device |
| CN210356768U (en) * | 2019-07-16 | 2020-04-21 | 九江双龙特种耐火材料有限公司 | Double-shaft mixing device for producing silicon carbide ceiling board |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230000 room 106, South first floor, management committee of Chaohu Economic Development Zone, Hefei, Anhui Province Applicant after: Anhui Keling Water Treatment Technology Co.,Ltd. Address before: 238000 room 106, South first floor, management committee of Chaohu Economic Development Zone, Hefei, Anhui Province Applicant before: Chaohu Keling Watt Water Treatment Technology Co.,Ltd. |
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Application publication date: 20200929 |
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| RJ01 | Rejection of invention patent application after publication |