CN111495225B - Gypsum slurry mixing machine - Google Patents
Gypsum slurry mixing machine Download PDFInfo
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- CN111495225B CN111495225B CN201910093129.4A CN201910093129A CN111495225B CN 111495225 B CN111495225 B CN 111495225B CN 201910093129 A CN201910093129 A CN 201910093129A CN 111495225 B CN111495225 B CN 111495225B
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- stirring
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- lower stirring
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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
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
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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
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
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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
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/918—Counter current flow, i.e. flows moving in opposite direction and colliding
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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
- 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 embodiment of the invention discloses a gypsum slurry mixer, which comprises: the casing, the casing top is the opening form, and the bottom laminating of casing is provided with the carousel, evenly sets up the vertical lower stirring group of multiunit on the carousel, every group stirring group is including a plurality of stirring pins and a stirring ear down, is equipped with the motor in the casing, and the motor is linked with the pivot of carousel, and the bottom of casing lateral wall is equipped with the ground paste export, and the casing top is provided with the upper cover, and the upper cover sets up water inlet, feed inlet and foamer entry, and the upper cover below evenly sets up a plurality of vertical stirring pins that correspond with the lower stirring pin on the carousel, and is a set of at least the diameter of stirring pin is progressively increased in proper order/degressive down under a plurality of in the stirring group, the stirring pin is crisscross between the stirring pin at the carousel rotation in-process from down and is passed. Through improving mixing quick-witted inner structure, improve stirring ability and reduce the caking problem, finally improve gypsum board production efficiency and quality.
Description
Technical Field
The embodiment of the invention relates to the technical field of gypsum slurry processing, in particular to a gypsum slurry mixing machine.
Background
Gypsum is monoclinic mineral, is hydrate of calcium sulfate as main chemical component, is widely used industrial material and building material, and has microporous structure and heat dewatering property, excellent sound and heat insulating and fireproof performance.
The mixer is one of the key equipment of thistle board production, the quality of its performance, the performance of direct influence gypsum ground paste, at present, when gypsum ground paste was transferred according to predetermineeing the proportion, gypsum powder forms gypsum ground paste after meeting water, when the mixture of gypsum powder, foamer and water is in mixer or charge-tube, mix under the exogenic action, local mixing when beginning reaches holistic homogeneous mixing state, reach dynamic balance at a certain moment, later, mix the degree of consistency and can not improve again and segregation and mix then go on in turn repeatedly. In the stirring process, the viscosity of the gypsum slurry is high, bubbles are easy to appear, if the stirring is not uniform, the phenomena of caking and bubbles still exist, and the drying process and the quality of a finished board are finally influenced due to uneven mixing or unstable flow rate of the slurry. Caking in the mixer causes paper breakage in the gypsum board production process, directly affects production efficiency, and directly affects the quality of subsequent processed products.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention provide a gypsum slurry mixing machine, which can improve a gypsum slurry mixing effect.
In one embodiment of the present invention, there is provided: a gypsum slurry mixer comprising: the casing, the casing top is the opening form, and the bottom laminating of casing is provided with the carousel, evenly sets up the vertical lower stirring group of multiunit on the carousel, every group stirring group is including a plurality of stirring pins and a stirring ear down, is equipped with the motor in the casing, and the motor is linked with the pivot of carousel, and the bottom of casing lateral wall is equipped with the ground paste export, and the casing top is provided with the upper cover, and the upper cover sets up water inlet, feed inlet and foamer entry, and the upper cover below evenly sets up a plurality of vertical stirring pins that correspond with the lower stirring pin on the carousel, and is a set of at least the diameter of stirring pin is progressively increased in proper order/degressive down under a plurality of in the stirring group, the stirring pin is crisscross between the stirring pin at the carousel rotation in-process from down and is passed.
Preferably, the lower stirring pin is a cylindrical stirring pin.
Preferably, each lower agitation group includes an equal number of agitation pins.
Preferably, the corresponding lower stirring pins in the multiple lower stirring groups are located on a concentric circle with the rotating shaft of the rotating disk as the center.
Preferably, the motion track of the upper stirring pin shaft on the outermost side is consistent with the inner arc surface of each stirring lug.
Preferably, the movement locus of the stirring trunnion is consistent with the inner side cambered surface of the upper cover.
Preferably, each upper stirring pin scrapes and rubs two adjacent lower stirring pins in the rotation.
Preferably, the motion track of the stirring pin shaft on the innermost side is consistent with the cambered surface on the outer side of the water throwing disc.
Preferably, the diameters of the plurality of lower stirring pins in each lower stirring group decrease from inside to outside in sequence.
Preferably, the diameters of the plurality of lower stirring pins in each lower stirring group are sequentially an arithmetic progression with a tolerance A, and the tolerance A is smaller than or equal to a preset value.
The embodiment of the invention has the following beneficial effects: through improving mixing quick-witted inner structure, improve stirring ability and reduce the caking problem, finally improve gypsum board production efficiency and quality.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram of a mixer according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a mixer according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a mixer according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
At present, as shown in fig. 1, 2 and 3, the structure of the mixing machine includes a casing 1, the top end of the casing 1 is open, a rotary disc 2 is attached to the bottom end of the casing, a plurality of groups of vertical lower stirring groups are uniformly arranged on the rotary disc 2, each group of lower stirring groups includes a plurality of lower stirring pins 3 and a stirring lug 4, a motor is arranged in the casing 1 and is linked with a rotating shaft of the rotary disc 2, a slurry outlet 5 is arranged at the bottom end of the side wall of the casing 1, an upper cover 6 is arranged above the casing 1 and is provided with a water inlet 7 and a feed inlet 8, a plurality of vertical upper stirring pins (not shown in fig. 1, 2 and 3) corresponding to the lower stirring pins on the rotary disc are uniformly arranged below the upper cover, the diameters of the plurality of lower stirring pins 3 in at least one group of lower stirring groups are sequentially increased/decreased, the lower stirring pins 3 pass through the upper stirring pins in a staggered manner in the rotating process, form a cross type stirring structure.
In the embodiment of the invention, the lower stirring pin is a cylindrical stirring pin.
In the embodiment of the invention, each lower stirring group comprises equal number of stirring pins.
In the embodiment of the invention, the corresponding lower stirring pins in the multiple groups of lower stirring groups are positioned on a concentric circle taking the rotating shaft of the rotating disc as the center of circle.
In the embodiment of the invention, the motion track of the upper stirring pin shaft on the outermost side is consistent with the arc surface on the inner side of each stirring lug.
In the embodiment of the invention, the motion trail of the stirring trunnion is consistent with the inner side cambered surface of the upper cover.
In the embodiment of the invention, each upper stirring pin is scratched to two adjacent lower stirring pins in rotation.
In the embodiment of the invention, the motion track of the stirring pin shaft on the innermost side is consistent with the cambered surface on the outer side of the water throwing disc.
In the embodiment of the invention, the diameters of the lower stirring pins in each lower stirring group are sequentially reduced from inside to outside.
In the embodiment of the invention, the diameters of the lower stirring pins in each lower stirring group are sequentially an arithmetic progression with a tolerance A, and the tolerance A is smaller than or equal to a preset value.
Example one
As shown in fig. 1 and 2, this example illustrates the process of mixing by the mixer:
water is injected into the water throwing area from the water inlet 7 and is thrown out along the tangential direction through a gap between the wall surface near the water throwing area and the rotating disc 2; gypsum is added from a feed inlet 8, foaming agent is added from a foaming agent inlet 9, mixing is carried out in a mixing area, an upper stirring pin is static, a lower stirring pin 3 rotates, the lower stirring pin 3 passes through the upper stirring pin in a staggered mode in the working process of the mixer, and the upper stirring pin and the lower stirring pin form a finger-crossing type stirring structure; repeatedly stirring and mixing the materials in the container by means of shearing and diffusion through periodic position change; the primary mixing modes are shear mixing and convective mixing. The slurry is mixed and due to the velocity gradient difference the slurry is subjected to intense shear mixing in the gap between the rotating disc 2 and the housing 1 and the upper cover, bringing the slurry to the slurry outlet 5 via the rotation of the rotating disc 2.
Example two
In the prior art, because the upper stirring pin is static, the lower stirring pin is very high in speed, the slurry near the upper stirring pin is pushed to move quickly, the lower stirring pin touches the static lower stirring pin and the slurry near the static lower stirring pin, the strong shearing effect is generated, the speed gradient difference and the vortex are formed, the vortex is easily formed, the stirring effect is influenced, and the caking is caused. The slurry on two sides of the slurry outlet is strongly sheared and turbulent in a narrow hole surrounded by the shell and the tooth groove, and the inertial speed is still kept when the slurry is pushed out by the tooth groove surface. The slurry which is not stirred uniformly in the narrow flow field is pushed to a slurry outlet by other slurry to be discharged due to high density. Typically, the slurry that is not fully agitated in the mixing zone is mostly retained in this region, while the slurry that is not fully agitated in the slurry zone may be discharged directly out of the slurry outlet through the rotor gullets. The position of the water throwing disc is close to a gypsum throwing inlet, the content of gypsum is concentrated, gypsum powder which is not taken away exists in the mixing process, and the peripheral speed of the stirring pin below the innermost ring is lower than that of other stirring pins, so that the stirring effect is poor, and caking is caused.
In the embodiment of the invention, the diameter or the number of the lower stirring pins is changed, and the proper diameter and the proper interval for making the flow field uniform are found, so that the strength of the vortex is reduced, and the caking possibility is reduced; the movement track of the upper stirring pin shaft on the outermost side is consistent with the inner side cambered surface of the stirring lug, so that the effect of rubbing the inner side cambered surface of the stirring lug can be achieved, and the caking possibility is reduced; because lower stirring round pin position and orbit and last stirring round pin cooperation are inseparable, so increase the lower stirring round pin stirring dynamics near the dish of getting rid of water, make the gypsum powder of input fully stirred, can improve the caking. The diameter difference of a plurality of lower stirring pins in each lower stirring group is not too large, when the diameter difference is small, the velocity distribution of the flow field is uniform, the regions with large velocity gradient difference among the stirring pins and the vortex regions are few, and the caking condition can be reduced.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (8)
1. A gypsum slurry mixing machine, comprising: the top end of the machine shell is in an open shape, a rotary table is attached to the bottom end of the machine shell, a plurality of groups of vertical lower stirring groups are uniformly arranged on the rotary table, each group of lower stirring groups comprises a plurality of lower stirring pins and a stirring lug, a motor is arranged in the machine shell and is connected with a rotary shaft of the rotary table, a slurry outlet is arranged at the bottom end of the side wall of the machine shell, an upper cover is arranged above the machine shell and is provided with a water inlet, a feed inlet and a foaming agent inlet, a plurality of vertical upper stirring pins corresponding to the lower stirring pins on the rotary table are uniformly arranged below the upper cover, the diameters of the plurality of lower stirring pins in at least one group of lower stirring groups are sequentially increased or decreased, and the lower stirring pins pass through the upper stirring pins in a staggered mode in the rotating process of the;
the corresponding lower stirring pins in the multiple groups of lower stirring groups are positioned on a concentric circle taking the rotating shaft of the rotating disc as the center of circle; and each upper stirring pin scrapes and rubs two adjacent lower stirring pins in rotation.
2. The mixing machine of claim 1, wherein the lower stirring pin is a cylindrical stirring pin.
3. The mixing machine of claim 1 or 2, wherein each lower set of mixing arms comprises an equal number of mixing pins.
4. The mixing machine of claim 1 wherein the outermost upper mixing pin has a trajectory that is coincident with the inner contour of each mixing lug.
5. The mixing machine of claim 1 wherein the agitating trunnion has a path that is substantially coincident with the inner arcuate surface of the top cover.
6. The mixing machine of claim 1, wherein the innermost upper mixing pin has a trajectory that coincides with the outer arc of the splash plate.
7. The mixing machine of claim 1, wherein the plurality of lower mixing pins in each lower mixing group decrease in diameter sequentially from the inside to the outside.
8. The mixing machine of claim 7, wherein the diameters of the plurality of lower mixing pins in each of the lower mixing groups are in turn an arithmetic series with a tolerance A, the tolerance A being less than or equal to a predetermined value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910093129.4A CN111495225B (en) | 2019-01-30 | 2019-01-30 | Gypsum slurry mixing machine |
| PCT/CN2019/095567 WO2020155566A1 (en) | 2019-01-30 | 2019-07-11 | Gypsum slurry mixing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910093129.4A CN111495225B (en) | 2019-01-30 | 2019-01-30 | Gypsum slurry mixing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111495225A CN111495225A (en) | 2020-08-07 |
| CN111495225B true CN111495225B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910093129.4A Active CN111495225B (en) | 2019-01-30 | 2019-01-30 | Gypsum slurry mixing machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111495225B (en) |
| WO (1) | WO2020155566A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518988A (en) * | 2020-11-27 | 2021-03-19 | 泰山石膏（河南）有限公司 | Gypsum needle type mixer |
| CN114311290B (en) * | 2021-12-24 | 2023-02-28 | 北新集团建材股份有限公司 | Gypsum ground paste of atomizing clearance mixes machine |
| CN114425818B (en) * | 2022-01-05 | 2023-04-18 | 故城北新建材有限公司 | Gypsum board mixes machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4451155A (en) * | 1983-01-20 | 1984-05-29 | A. R. Wilfley And Sons, Inc. | Mixing device |
| CN205731063U (en) * | 2016-07-05 | 2016-11-30 | 淮南北新建材有限公司 | A kind of gypsum mixer pressurizing unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3459620A (en) * | 1965-10-11 | 1969-08-05 | United States Gypsum Co | Apparatus for producing cast gypsum articles |
| DE3243671A1 (en) * | 1982-11-25 | 1984-05-30 | Karg Ytron Gmbh | DEVICE FOR CONTINUOUSLY MIXING POWDERED SUBSTANCES WITH LIQUIDS |
| AT388193B (en) * | 1987-06-12 | 1989-05-10 | Andritz Ag Maschf | MIXER |
| EP1356858B8 (en) * | 2001-01-29 | 2008-07-16 | Toyo Engineering Corporation | Reactor and use thereof for solution polymerization and bulk polymerization |
| CN104368258B (en) * | 2013-08-14 | 2016-08-17 | 北新集团建材股份有限公司 | A kind of mixer |
| CN203469865U (en) * | 2013-08-14 | 2014-03-12 | 北新集团建材股份有限公司 | Mixer |
| CN105328795A (en) * | 2015-10-14 | 2016-02-17 | 重庆市秋露石膏制品厂 | Gypsum slurry mixing machine |
| CN106422905A (en) * | 2016-11-27 | 2017-02-22 | 江苏新思维信息***工程有限公司 | Novel vertical stirrer |
-
2019
- 2019-01-30 CN CN201910093129.4A patent/CN111495225B/en active Active
- 2019-07-11 WO PCT/CN2019/095567 patent/WO2020155566A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4451155A (en) * | 1983-01-20 | 1984-05-29 | A. R. Wilfley And Sons, Inc. | Mixing device |
| CN205731063U (en) * | 2016-07-05 | 2016-11-30 | 淮南北新建材有限公司 | A kind of gypsum mixer pressurizing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020155566A1 (en) | 2020-08-06 |
| CN111495225A (en) | 2020-08-07 |
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Effective date of registration: 20221205 Address after: 542700 Intersection of Henga Road and 203 Provincial Road, Huarun Demonstration Area, Lianshan Town, Fuchuan Yao Autonomous County, Hezhou City, Guangxi Zhuang Autonomous Region Patentee after: Beixin Building Materials (Hezhou) Co.,Ltd. Address before: Room 1601, block a, Beixin center, No. 9, Qibei Road, South District, future science city, Changping District, Beijing Patentee before: BEIJING NEW BUILDING MATERIALS PLC |
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