CN107030856A - A kind of method for improving gypsum board manufacture foam stability - Google Patents

A kind of method for improving gypsum board manufacture foam stability Download PDF

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Publication number
CN107030856A
CN107030856A CN201710320959.7A CN201710320959A CN107030856A CN 107030856 A CN107030856 A CN 107030856A CN 201710320959 A CN201710320959 A CN 201710320959A CN 107030856 A CN107030856 A CN 107030856A
Authority
CN
China
Prior art keywords
foam
water
gypsum board
slurry
board manufacture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710320959.7A
Other languages
Chinese (zh)
Inventor
胡振涛
査斌
王正文
马富宏
任凤景
刘伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BNBM NINGBO Co Ltd
Beijing New Building Material Group Co Ltd
Original Assignee
BNBM NINGBO Co Ltd
Beijing New Building Material Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BNBM NINGBO Co Ltd, Beijing New Building Material Group Co Ltd filed Critical BNBM NINGBO Co Ltd
Priority to CN201710320959.7A priority Critical patent/CN107030856A/en
Publication of CN107030856A publication Critical patent/CN107030856A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/02—Conditioning the material prior to shaping
    • B28B17/023—Conditioning gypsum
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/42—Pore formers
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/48—Foam stabilisers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

, can be by increasing foam wall thickness the invention discloses a kind of method for improving gypsum board manufacture foam stability, and then extend the lather collapse time, it is finally reached foams mix uniformly, improves the quality of plasterboard.Comprise the following steps：Prepare foam：Foam stabiliser is added after being completely dissolved in 30 35 DEG C of water, then mixed to foaming agent stoste is wherein added, finally add mixed liquor in Homogenizing pump, be passed through compressed air and carry out polishing foaming；Wherein, the adding proportion of the foam stabiliser, water and foaming agent stoste is 1:35:1‑1:43:1, the pressure of the compressed air is 0.4 0.5MPa, and flow is 5 6m3/h；Foam is mixed with slurry：The complete foam of bleed is added together with the plaster of paris, water to stir in mixing slurry is made, enter to be molded as plasterboard by slurry again afterwards.

Description

A kind of method for improving gypsum board manufacture foam stability
Technical field
The invention belongs to gypsum board manufacture field, and in particular to a kind of method of raising gypsum board manufacture foam stability.
Background technology
, it is necessary to which the plaster of paris and water are mixed into slurry in the final link of gypsum board manufacture technique, mould is reentered afterwards, Plasterboard is made.Wherein, the plaster of paris is mixed during slurry while needing to manufacture a large amount of foams in slurry also with water Need the foams mix in slurry uniform, can just make the loose structure of sheet material formation dense uniform being made, be resisted with increasing sheet material Roll over intensity, it is to avoid occur brittle fracture.
Uniform particle sizes' foam is fabricated to by frothing device using surfactant and water, compressed air at present, foam exists Lost with having a large amount of lather collapses in slurry contact and whipping process, and then influence the porous knot of plasterboard being made Structure.
The content of the invention
It is an object of the invention to provide a kind of method for improving gypsum board manufacture foam stability, it can be steeped by increasing Foam wall thickness, and then extend the lather collapse time, it is finally reached foams mix uniformly, improves the quality of plasterboard.
In order to achieve the above object, concrete technical scheme of the invention is as follows：
A kind of method for improving gypsum board manufacture foam stability, comprises the following steps：
A, prepare foam：Foam stabiliser is added after being completely dissolved in 30-35 DEG C of water, then to wherein adding foaming agent Stoste is mixed, and finally adds mixed liquor in Homogenizing pump, is passed through compressed air and is carried out polishing foaming；
Wherein, the adding proportion of the foam stabiliser, water and foaming agent stoste is 1:35:1-1:43:1, the compression The pressure of air is 0.4-0.5MPa, and flow is 5-6m3/h；
B, foam mixed with slurry：The complete foam of bleed is added together with the plaster of paris, water in mixing pump and stirs equal It is even that slurry is made, again slurry is entered to be molded as plasterboard afterwards.
Further, in step a, the water is distilled water or pure water.
Further, in step a, the foam stabiliser is zero water sodium metasilicate, metasilicate pentahydrate sodium, sodium metasilicate neutrality Any one of liquid, pre-gelatinized starch glue, sodium trimetaphosphate.
Further, in step a, the foaming agent stoste is sodium dodecyl sulfate solution.
Further, in step b, the unit weight of the complete foam of bleed is (per liter weight) 75-80g/L.
Further, in step b, the rotating speed of the mixer is 700-750r/min.
The method for a kind of raising gypsum board manufacture foam stability that the present invention is provided, by adding foam stabiliser and changing Enter production technology, foam and the loss in slurry contact whipping process can be greatly reduced, and then extend the lather collapse time, most Reach that foam is well mixed with slurry eventually, make the loose structure of sheet material formation dense uniform being made, improve the quality of plasterboard.
Brief description of the drawings
A kind of schematic flow sheet of the method for raising gypsum board manufacture foam stability that Fig. 1 provides for the present invention.
Embodiment
Embodiments of the present invention are illustrated below in conjunction with the accompanying drawings.
A kind of method for improving gypsum board manufacture foam stability：As shown in figure 1,
A, prepare foam：Foam stabiliser is added after being completely dissolved in 30-35 DEG C of water, then to wherein adding foaming agent Stoste is mixed, and finally adds mixed liquor in Homogenizing pump, is passed through compressed air and is carried out polishing foaming；
Wherein, the adding proportion of the foam stabiliser, water and foaming agent stoste is 1:35:1-1:43:1, the compression The pressure of air is 0.4-0.5MPa, and flow is 5-6m3/h；
B, foam mixed with slurry：The complete foam of bleed is added together with the plaster of paris, water in mixing pump and stirs equal It is even that slurry is made, again slurry is entered to be molded as plasterboard afterwards.
Embodiment 1：
A, prepare foam：According to 1:40:1 ratio adds pre-gelatinized starch glue to be completely dissolved in 30 DEG C of distilled water Afterwards, then to foaming agent stoste sodium dodecyl sulfate solution is wherein added mix, finally mixed liquor is added in Homogenizing pump, is passed through Compressed air carries out polishing foaming；Wherein, the pressure of the compressed air is 0.5MPa, and flow is 6m3/h；
B, foam mixed with slurry：After 131s, completely, unit weight is 78g/L to the foam drainage being made, and bleed is complete Foam add to stir in mixing pump together with the plaster of paris, water slurry be made, the rotating speed for controlling mixing pump is 750r/min, Slurry is entered into mould, drying again afterwards plasterboard is made.
When pre-gelatinized starch glue addition therein is promoted into 2, drain time is changed into 169s.
Embodiment 2：
A, prepare foam：According to 1:40:1 ratio adds zero water sodium metasilicate to be completely dissolved in 35 DEG C of distilled water Afterwards, then to foaming agent stoste sodium dodecyl sulfate solution is wherein added mix, finally mixed liquor is added in Homogenizing pump, is passed through Compressed air carries out polishing foaming；Wherein, the pressure of the compressed air is 0.5MPa, and flow is 6m3/h；
B, foam mixed with slurry：After 105s, completely, unit weight is 75g/L to the foam drainage being made, and bleed is complete Foam add to stir in mixing pump together with the plaster of paris, water slurry be made, the rotating speed for controlling mixing pump is 730r/min, Slurry is entered into mould, drying again afterwards plasterboard is made.
When zero water sodium metasilicate addition therein is promoted into 2, drain time is changed into 121.
Embodiment 3：
A, prepare foam：According to 1:40:1 ratio adds metasilicate pentahydrate sodium to be completely dissolved in 35 DEG C of distilled water Afterwards, then to foaming agent stoste sodium dodecyl sulfate solution is wherein added mix, finally mixed liquor is added in Homogenizing pump, is passed through Compressed air carries out polishing foaming；Wherein, the pressure of the compressed air is 0.5MPa, and flow is 6m3/h；
B, foam mixed with slurry：After 156s, completely, unit weight is 80g/L to the foam drainage being made, and bleed is complete Foam add to stir in mixing pump together with the plaster of paris, water slurry be made, the rotating speed for controlling mixing pump is 700r/min, Slurry is entered into mould, drying again afterwards plasterboard is made.
When metasilicate pentahydrate sodium addition therein is promoted into 2, drain time is changed into 210.
Experimental example：
Foam and the loss in the stirred title of slurry contact are reduced, lather collapse can be extended by increasing foam wall thickness Time, and then extend foam drainage time.
In the present invention, the foam stabiliser that can be used is tested, experimental data is as follows：
It is metasilicate pentahydrate sodium present invention preferably uses foam stabiliser.
More than, although several embodiments of the invention is illustrated, but these embodiments are intended only as example proposition , it is not intended to limit the scope of the present invention.For these new embodiments, it can be implemented in other various modes, In the range of idea of the invention is not departed from, various omissions, displacement can be carried out and changed.These embodiments and its change Shape, the invention being also contained in described in claims while being contained in scope and spirit of the present invention and its impartial model In enclosing.

Claims (6)

1. a kind of method for improving gypsum board manufacture foam stability, it is characterised in that comprise the following steps：
A, prepare foam：Foam stabiliser is added after being completely dissolved in 30-35 DEG C of water, then to wherein addition foaming agent stoste Mix, finally add mixed liquor in Homogenizing pump, be passed through compressed air and carry out polishing foaming；
Wherein, the adding proportion of the foam stabiliser, water and foaming agent stoste is 1:35:1-1:43:1, the compressed air Pressure be 0.4-0.5MPa, flow is 5-6m3/h；
B, foam mixed with slurry：The complete foam of bleed is added into mixing pump the system of stirring together with the plaster of paris, water Into slurry, again slurry is entered to be molded as plasterboard afterwards.
2. a kind of method for improving gypsum board manufacture foam stability according to claim 1, it is characterised in that step a In, the water is distilled water or pure water.
3. a kind of method for improving gypsum board manufacture foam stability according to claim 1, it is characterised in that step a In, the foam stabiliser is zero water sodium metasilicate, metasilicate pentahydrate sodium, sodium metasilicate neutral solution, pre-gelatinized starch glue, three inclined phosphorus Any one of sour sodium.
4. a kind of method for improving gypsum board manufacture foam stability according to claim 1, it is characterised in that step a In, the foaming agent stoste is sodium dodecyl sulfate solution.
5. a kind of method for improving gypsum board manufacture foam stability according to claim 1, it is characterised in that step b In, the unit weight of the complete foam of bleed is (per liter weight) 75-80g/L.
6. a kind of method for improving gypsum board manufacture foam stability according to claim 1, it is characterised in that step b In, the rotating speed of the mixer is 700-750r/min.
CN201710320959.7A 2017-05-09 2017-05-09 A kind of method for improving gypsum board manufacture foam stability Pending CN107030856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710320959.7A CN107030856A (en) 2017-05-09 2017-05-09 A kind of method for improving gypsum board manufacture foam stability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710320959.7A CN107030856A (en) 2017-05-09 2017-05-09 A kind of method for improving gypsum board manufacture foam stability

Publications (1)

Publication Number Publication Date
CN107030856A true CN107030856A (en) 2017-08-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108501216A (en) * 2018-03-01 2018-09-07 镇江北新建材有限公司 Plasterboard foaming mixing equipment and method for mixing
CN108548835A (en) * 2018-02-09 2018-09-18 上海大学 A method of evaluation foam dynamic stability during core flooding test
CN111605041A (en) * 2019-06-21 2020-09-01 淮南北新建材有限公司 Gypsum board production process capable of improving foam quantity stability

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2690181A1 (en) * 2007-06-19 2008-12-24 Yoshino Gypsum Co., Ltd. Gypsum board having mold resistance
CN201410700Y (en) * 2009-03-25 2010-02-24 泰山石膏股份有限公司 Paperbacked plasterboard combined dynamic foaming device
CN104628348A (en) * 2013-11-13 2015-05-20 北新集团建材股份有限公司 Water-repellent paper-surface plasterboard and preparation method thereof
CN204914228U (en) * 2015-08-17 2015-12-30 泰山石膏股份有限公司 Gypsum board foaming device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2690181A1 (en) * 2007-06-19 2008-12-24 Yoshino Gypsum Co., Ltd. Gypsum board having mold resistance
CN201410700Y (en) * 2009-03-25 2010-02-24 泰山石膏股份有限公司 Paperbacked plasterboard combined dynamic foaming device
CN104628348A (en) * 2013-11-13 2015-05-20 北新集团建材股份有限公司 Water-repellent paper-surface plasterboard and preparation method thereof
CN204914228U (en) * 2015-08-17 2015-12-30 泰山石膏股份有限公司 Gypsum board foaming device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108548835A (en) * 2018-02-09 2018-09-18 上海大学 A method of evaluation foam dynamic stability during core flooding test
CN108548835B (en) * 2018-02-09 2020-08-04 上海大学 Method for evaluating dynamic stability of foam in core flooding process
CN108501216A (en) * 2018-03-01 2018-09-07 镇江北新建材有限公司 Plasterboard foaming mixing equipment and method for mixing
CN111605041A (en) * 2019-06-21 2020-09-01 淮南北新建材有限公司 Gypsum board production process capable of improving foam quantity stability

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Application publication date: 20170811

RJ01 Rejection of invention patent application after publication