CN108339481B - Gypsum homogenizer and homogenizing method thereof - Google Patents
Gypsum homogenizer and homogenizing method thereof Download PDFInfo
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- CN108339481B CN108339481B CN201710053195.XA CN201710053195A CN108339481B CN 108339481 B CN108339481 B CN 108339481B CN 201710053195 A CN201710053195 A CN 201710053195A CN 108339481 B CN108339481 B CN 108339481B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/4094—Plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/60—Mixing solids with solids
- B01F23/69—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/80—After-treatment of the mixture
- B01F23/802—Cooling the mixture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/401—Methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/405—Mixers using gas or liquid agitation, e.g. with air supply tubes in receptacles having guiding conduits therein, e.g. for feeding the gas to the bottom of the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/409—Parts, e.g. diffusion elements; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/007—After-treatment of the dehydration products, e.g. aging, stabilisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/98—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/28—Mixing cement, mortar, clay, plaster or concrete ingredients
Abstract
The invention provides a gypsum homogenizer and a homogenizing method thereof, wherein the homogenizer comprises a cylinder body, a partition plate is fixed in the cylinder body, and the lower end surface and two sides of the partition plate are correspondingly and hermetically connected with the bottom wall and the side wall of the cylinder body; the barrel is divided into a homogenizing bin and a cooling bin by the partition plate; the bottoms of the homogenizing bin and the cooling bin are respectively provided with an air blowing port for supplying air upwards; the top of the homogenizing bin extends downwards to form an air inlet pipe, and the bottom of the air inlet pipe is provided with a gas disperser; the bottom of the homogenizing chamber is provided with a distributor matched with the gas disperser; a feed port is formed in one side of the homogenizing bin, a discharge port is formed in one side of the cooling bin, and the upper end of the partition plate is higher than the discharge port but lower than the feed port; and a heat exchange tube is fixed in the cooling bin. The gypsum homogenizer comprises a homogenizing bin and a cooling bin, wherein the building gypsum powder is aged and homogenized in the homogenizing bin, then enters the cooling bin, is cooled through heat exchange with a heat exchange pipe, and is cooled while the aging and homogenization are strengthened.
Description
Technical Field
The invention relates to the technical field of gypsum processing devices, in particular to a gypsum homogenizer and a homogenizing method thereof.
Background
In the production process of the building gypsum powder, the building gypsum powder which is just calcined often contains a certain amount of over-calcined III-type anhydrous gypsum and under-calcined dihydrate gypsum, the III-type anhydrous gypsum can be quickly converted into semi-hydrated gypsum under the action of water vapor or water, and if the calcined building gypsum is directly applied, the III-type anhydrous gypsum can cause the expansion, the breakage and the like of a building due to water absorption, so that the building safety is not facilitated. Therefore, the building gypsum needs to be aged and homogenized before use.
At present, the aging and homogenization of the building gypsum are generally carried out in a mechanical mode, and the mode generally has the problems of poor aging and homogenization effect and low aging and homogenization efficiency.
Disclosure of Invention
The invention provides a gypsum homogenizer and a homogenizing method thereof, aiming at the defects of the prior art.
The invention is realized by the following technical scheme: the gypsum homogenizer comprises a cylinder body, wherein a partition plate is fixed in the cylinder body, and the lower end surface and two sides of the partition plate are correspondingly and hermetically connected with the bottom wall and the side wall of the cylinder body; the barrel is divided into a homogenizing bin and a cooling bin by the partition plate; the bottom of the homogenizing bin and the bottom of the cooling bin are respectively provided with a first air blowing port and a second air blowing port which supply air upwards; the top of the homogenizing bin extends downwards to form an air inlet pipe, and the bottom of the air inlet pipe is provided with a gas disperser; the bottom of the homogenizing chamber is provided with a distributor matched with the gas disperser; a feed port is formed in one side of the homogenizing bin, a discharge port is formed in one side of the cooling bin, and the upper end of the partition plate is higher than the discharge port but lower than the feed port; and a heat exchange tube is fixed in the cooling bin.
Preferably, the gas disperser is a bell mouth and gradually expands from top to bottom; the upper part of the bell mouth extends into the air inlet pipe; the central axis of the bell mouth is collinear with the central axis of the air inlet pipe; the distributing device is a horn mouth gradually enlarged from bottom to top, and the bottom of the distributing device is communicated with the first air blowing opening.
Preferably, the first air blowing opening and the second air blowing opening are respectively connected with a roots blower.
Preferably, one end of the heat exchange tube is connected with the roots blower at the first blowing port. The gas after heat exchange in the heat exchange tube can be blown into the homogenizing bin through the Roots blower for reuse.
Preferably, the air inlet pipe comprises at least two hollow rods, two adjacent hollow rods are in splicing fit, one is a splicing end, the other is a sleeving end, an elastically telescopic limiting clamping key is arranged in a rod body of the splicing end, and a clamping hole for splicing the limiting clamping key is formed in the rod body of the sleeving end. Through the cooperation of joint key and joint hole, can adjust the length of intake pipe to the needs of the different barrel heights of adaptation.
The invention also provides a gypsum homogenizing method, which is applied to the gypsum homogenizer and comprises the following steps:
A. introducing damp and hot air into the air inlet pipe and introducing air into the heat exchange pipe in the cooling bin; blowing air into the first air blowing opening and the second air blowing opening by using a Roots blower;
B. building gypsum powder enters the homogenizing bin through the feeding hole and descends under the action of gravity;
C. the moist hot air of the air inlet pipe and the air of the first air blowing opening form an annular overturning force of surging from bottom to top on the gypsum sinking in the step A, and the gypsum flows in a boiling state;
D. the gypsum which flows in a turnover mode flows into the cooling bin from the upper side of the partition plate;
E. building gypsum powder after getting into the cooling bin sinks under the action of gravity and carries out the heat exchange with the normal atmospheric temperature air in the heat transfer pipe, reaches the effect of cooling to be boiling form under the effect of the air of blowing the mouth and drum into at the second and flow, fully flow from the discharge gate after the heat transfer with the normal atmospheric temperature air in the heat transfer pipe.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the invention provides a gypsum homogenizer, which comprises a cylinder, wherein a partition plate is fixed in the cylinder, and the lower end surface and two sides of the partition plate are correspondingly and hermetically connected with the bottom wall and the side wall of the cylinder; the barrel is divided into a homogenizing bin and a cooling bin by the partition plate; the bottom of the homogenizing bin and the bottom of the cooling bin are respectively provided with a first air blowing port and a second air blowing port which supply air upwards; the top of the homogenizing bin extends downwards to form an air inlet pipe, and the bottom of the air inlet pipe is provided with a gas disperser; the bottom of the homogenizing chamber is provided with a distributor matched with the gas disperser; a feed port is formed in one side of the homogenizing bin, a discharge port is formed in one side of the cooling bin, and the upper end of the partition plate is higher than the discharge port but lower than the feed port; and a heat exchange tube is fixed in the cooling bin. The gypsum homogenizer comprises a homogenizing bin and a cooling bin, wherein the building gypsum powder is aged and homogenized in the homogenizing bin, then enters the cooling bin, is cooled through heat exchange with a heat exchange pipe, and is cooled while the aging and homogenization are strengthened.
Drawings
For a clearer explanation of the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a gypsum homogenizer provided by an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an air inlet pipe of a gypsum homogenizer, provided by an embodiment of the invention.
Shown in the figure: the device comprises a barrel 10, a feed inlet 11, a homogenizing bin 12, a first air blowing port 13, a second air blowing port 14, a cooling bin 15, a discharge port 16, an air inlet pipe 20, a hollow rod 21, a limiting clamping key 22, a clamping hole 23, a gas disperser 30, a partition plate 40, a heat exchange pipe 50 and a distributor 60.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
Referring to fig. 1, there is shown a schematic structural view of a gypsum homogenizer provided by the present invention.
As can be seen from FIG. 1, the gypsum homogenizer comprises a cylinder 10, the shape of which is not limited to a cylindrical structure, but can be a structure with a rectangular cross section, and an upper cover can be arranged at the upper end of the cylinder 10 according to requirements; in this embodiment, the cylinder 10 is a cylindrical structure, and the upper end of the cylinder 10 is an open structure, which is convenient for wind dissipation. A partition plate 40 is fixed in the cylinder 10, and the lower end surface and two sides of the partition plate are correspondingly and hermetically connected with the bottom wall and the side wall of the cylinder; the cylinder body 10 is divided into a homogenizing bin 12 and a cooling bin 15 by a partition plate; the bottoms of the homogenizing chamber 12 and the cooling chamber 15 are respectively provided with a first air blowing port 13 and a second air blowing port 14 which supply air upwards; the top of the homogenizing chamber 12 extends downwards to form an air inlet pipe 20, and the bottom of the air inlet pipe 20 is provided with a gas disperser 30; a distributor 60 matched with the gas disperser 30 is arranged at the bottom of the homogenizing chamber 12; a feed port 11 is arranged on one side of the homogenizing bin 12, a discharge port 16 is arranged on one side of the cooling bin 15, and the upper end of the partition plate 40 is higher than the discharge port 16 but lower than the feed port 11; a heat exchange pipe 50 is fixed in the cooling bin.
In this embodiment, the gas disperser 30 is a bell mouth and gradually expands from top to bottom; the upper part of the bell mouth extends into the air inlet pipe 20; the central axis of the bell mouth is collinear with the central axis of the inlet pipe 20; the distributing device 60 is a bell mouth gradually enlarged from bottom to top, and the bottom of the distributing device 60 is communicated with the first blowing port 13; the distributor 60 may be composed of two obliquely placed partitions. The first air blowing port 13 and the second air blowing port 14 are respectively connected with a roots blower, and one end of the heat exchange tube 50 is connected with the roots blower at the first air blowing port 13.
Further, in this embodiment, as shown in fig. 2, the air inlet pipe 20 includes three hollow rods 21, two adjacent hollow rods 21 are in insertion fit, one of the insertion mating ends of the two adjacent hollow rods 21 is an insertion end, the other is a sleeving end, an elastically telescopic limit clamping key 22 is arranged in the rod body of the insertion end, and a clamping hole 23 penetrating the limit clamping key is formed in the rod body of the sleeving end. The first section of the hollow rod 21 at the top is thinnest, the second section and the third section of the hollow rod below the first section of the hollow rod are sequentially thickened, the lower parts of the first section of the hollow rod and the second section of the hollow rod are respectively provided with a limiting clamping key 22, the upper side walls of the second section of the hollow rod and the third section of the hollow rod are respectively provided with a clamping hole 23, the first section of the hollow rod is inserted into the second section of the hollow rod and can stretch and retract inside the second section of the hollow rod, and after the first section of the hollow rod is stretched to the maximum extent, the limiting clamping key 22 arranged at the lower part of the first section of the hollow rod is clamped into the clamping hole 23 arranged on the upper side wall of the second section of the hollow rod, so that the positions of the first section of the; when the first hollow rod body is required to retract into the second hollow rod body, the limiting clamping key 22 at the lower part of the first hollow rod body is required to be pressed down, then the first hollow rod body is pushed into the second hollow rod body, and the connection relation between the second hollow rod body and the third hollow rod body is the same as the above with the telescopic operation. Through the cooperation of spacing joint key 22 and joint hole 23, can adjust the length of intake pipe 20 to the needs of the barrel 10 of adaptation co-altitude not.
The embodiment of the invention also provides a gypsum homogenizing method, which is applied to the gypsum homogenizer, when in use, building gypsum powder enters the homogenizing chamber 12 from the feeding port 11 and descends under the action of gravity, because the bottom of the homogenizing chamber 12 is provided with the distributor 60, the distributor 60 presents a bell mouth gradually enlarged from bottom to top, the building gypsum powder enters the homogenizing chamber 12 and descends to the position above the distributor 60, moist hot air enters the homogenizing chamber 12 through the air inlet pipe 20 and is dispersed and homogenized in the homogenizing chamber 12 through the gas disperser 30, the roots blower blows air into the homogenizing chamber 12 through the first blowing port 13, so that the building gypsum powder and the moist hot air are fully mixed and flow to the position above the partition plate 20 in a boiling state and enter the cooling chamber 15, and because the top of the cylinder 10 is not provided with a dispersing upper cover, the air blown in by the first blowing port 13 is in the air; the aged and homogenized building gypsum powder enters the cooling bin 15, normal-temperature gas is pre-arranged in the heat exchange tube 50 in the cooling bin 15, after the aged and homogenized building gypsum powder enters the cooling bin 15, a roots fan blows gas into the cooling bin 15 through the second air blowing port 14, so that the aged and homogenized building gypsum powder moves sufficiently in the cooling bin 15 and exchanges heat with the normal-temperature gas in the heat exchange tube 50 sufficiently, the aged and homogenized building gypsum powder is cooled, and the fully cooled building gypsum powder flows to the discharge port 16 in a boiling state under the action of the gas blown in by the second air blowing port 14 and flows out for subsequent treatment.
In this embodiment, the temperature of the room temperature gas preset in the heat exchange tube 50 and the aged and homogenized building gypsum powder rises after heat exchange, and because one end of the heat exchange tube 50 is connected with the roots blower at the first blowing port 13, the gas after heat exchange in the heat exchange tube 50 can be blown into the homogenizing chamber 12 through the roots blower, thereby avoiding the waste of the gas in the heat exchange tube 50.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (5)
1. A gypsum homogenizer comprises a cylinder body (10), and is characterized in that a vertical partition plate (40) is fixed in the cylinder body (10), and the lower end surface and two sides of the partition plate are correspondingly and hermetically connected with the bottom wall and the side wall of the cylinder body; the barrel (10) is divided into a homogenizing bin (12) and a cooling bin (15) which are adjacent left and right by a partition plate; the bottoms of the homogenizing bin (12) and the cooling bin (15) are respectively provided with a first air blowing port (13) and a second air blowing port (14) which blow air upwards; the top of the homogenizing bin (12) extends downwards to form an air inlet pipe (20), the bottom end of the air inlet pipe (20) extends into the bottom of the homogenizing bin, and the bottom of the air inlet pipe (20) is provided with a gas disperser (30); a distributor (60) matched with the gas disperser (30) is arranged at the bottom of the homogenizing chamber (12); a feed inlet (11) is formed in one side of the homogenizing bin (12), a discharge outlet (16) is formed in one side of the cooling bin (15), and the upper end of the partition plate (40) is higher than the discharge outlet (16) but lower than the feed inlet (11); a heat exchange pipe (50) is fixed in the cooling bin;
the gas disperser (30) is a bell mouth and gradually expands from top to bottom; the upper part of the bell mouth extends into the air inlet pipe (20); the central axis of the bell mouth is collinear with the central axis of the air inlet pipe (20); the distributing device (60) is a bell mouth gradually enlarged from bottom to top, and the bottom of the distributing device is communicated with the first air blowing opening (13); the first air blowing opening (13) and the second air blowing opening (14) are respectively connected with a Roots blower.
2. The gypsum homogenizer according to claim 1, wherein one end of the heat exchange tube (50) is connected to a roots blower at the first blowing port (13).
3. The gypsum homogenizer of claim 2, wherein the air inlet pipe (20) comprises at least two sections of hollow rods (21), two adjacent sections of hollow rods (21) are in plug fit, the plug fit ends of the two adjacent sections of hollow rods (21) are a through end and a sleeve end, an elastically telescopic limit clamping key (22) is arranged in the rod body of the through end, and a clamping hole (23) for the through limit clamping key is formed in the rod body of the sleeve end.
4. A gypsum homogenizing method applied to the gypsum homogenizer of any one of claims 1-3, characterized in that the method comprises the steps of:
A. moist and hot air is introduced into the air inlet pipe (20), and air is introduced into the heat exchange pipe (50) in the cooling bin (15); blowing air into the first air blowing port (13) and the second air blowing port (14) by using a Roots blower;
B. building gypsum powder enters the homogenizing bin (12) through the feeding hole (11) and descends under the action of gravity;
C. the moist hot air in the air inlet pipe (20) and the air in the first air blowing opening (13) form an annular overturning force of surging from bottom to top on the gypsum sinking in the step A, and the gypsum flows in a boiling state;
D. the gypsum which flows in a turnover way flows into the cooling bin (15) from the upper part of the partition plate;
E. the building gypsum powder entering the cooling bin (15) sinks under the action of gravity and exchanges heat with the normal-temperature air in the heat exchange tube (50) to achieve the effect of cooling, flows in a boiling state under the action of the air blown into the second air blowing port (14), and fully exchanges heat with the normal-temperature air in the heat exchange tube (50) and then flows out of the discharge port (16).
5. A gypsum homogenization method according to claim 4, wherein the air after heat exchange of the heat exchange tube (50) enters the first air blowing opening (13) of the homogenization silo (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710053195.XA CN108339481B (en) | 2017-01-24 | 2017-01-24 | Gypsum homogenizer and homogenizing method thereof |
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| CN201710053195.XA CN108339481B (en) | 2017-01-24 | 2017-01-24 | Gypsum homogenizer and homogenizing method thereof |
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| CN108339481A CN108339481A (en) | 2018-07-31 |
| CN108339481B true CN108339481B (en) | 2020-12-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111517681A (en) * | 2020-04-17 | 2020-08-11 | 青岛量子元基环保科技有限公司 | Gypsum cooling and aging process |
| CN115724605B (en) * | 2022-11-25 | 2024-04-16 | 中国科学院过程工程研究所 | Quick ageing system and method for gypsum |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004033388A1 (en) * | 2002-10-10 | 2004-04-22 | Hrd Corp | An additive to render gypsum board moisture resistant |
| CN202936313U (en) * | 2012-09-29 | 2013-05-15 | 泰安杰普石膏科技有限公司 | Gypsum fluidization cooling machine |
| CN204569741U (en) * | 2015-04-30 | 2015-08-19 | 山东先罗输送机械有限公司 | Full-automatic terra alba homogenizing cooling system |
| CN205035283U (en) * | 2015-10-23 | 2016-02-17 | 中国新型建材设计研究院 | Formula of pressure gypsum ageing homogenization device |
| CN206418036U (en) * | 2017-01-24 | 2017-08-18 | 泰安杰普石膏科技有限公司 | Gypsum homogenizer |
-
2017
- 2017-01-24 CN CN201710053195.XA patent/CN108339481B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004033388A1 (en) * | 2002-10-10 | 2004-04-22 | Hrd Corp | An additive to render gypsum board moisture resistant |
| CN202936313U (en) * | 2012-09-29 | 2013-05-15 | 泰安杰普石膏科技有限公司 | Gypsum fluidization cooling machine |
| CN204569741U (en) * | 2015-04-30 | 2015-08-19 | 山东先罗输送机械有限公司 | Full-automatic terra alba homogenizing cooling system |
| CN205035283U (en) * | 2015-10-23 | 2016-02-17 | 中国新型建材设计研究院 | Formula of pressure gypsum ageing homogenization device |
| CN206418036U (en) * | 2017-01-24 | 2017-08-18 | 泰安杰普石膏科技有限公司 | Gypsum homogenizer |
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| CN108339481A (en) | 2018-07-31 |
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Effective date of registration: 20220822 Address after: Nanliu Street, Daiyue District, Jinan City, Shandong Province, 271000 Patentee after: Tai'an lufa energy saving and environmental protection equipment Co.,Ltd. Address before: 271000 Tai'an Tai'an Dawenkou Gypsum Industrial Park, Tai'an City, Shandong Province Patentee before: TAIAN JIEPU GYPSUM TECHNOLOGY Co.,Ltd. |
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Address after: Nanliu Street, Daiyue District, Tai'an City, Shandong Province, 271000 Patentee after: Tai'an lufa energy saving and environmental protection equipment Co.,Ltd. Address before: Nanliu Street, Daiyue District, Jinan City, Shandong Province, 271000 Patentee before: Tai'an lufa energy saving and environmental protection equipment Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |