CN111747720A - Phosphogypsum-based mixed mortar wall spraying process - Google Patents
Phosphogypsum-based mixed mortar wall spraying process Download PDFInfo
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- CN111747720A CN111747720A CN202010732718.5A CN202010732718A CN111747720A CN 111747720 A CN111747720 A CN 111747720A CN 202010732718 A CN202010732718 A CN 202010732718A CN 111747720 A CN111747720 A CN 111747720A
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- mixed mortar
- phosphogypsum
- base surface
- spraying
- spray gun
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
- E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
Abstract
The invention provides a phosphogypsum-based mixed mortar wall spraying process, which comprises the steps of preparing phosphogypsum powder, preparing mixed mortar, treating a wall base surface, spraying the mixed mortar along a proper motion track by a spraying machine, sequentially forming a plurality of layers of coating layers on the base surface in an overlapping manner, leveling the coating layers, performing calendaring treatment, and removing impurities on the ground of a construction site; by adopting the technical scheme of the invention, the mixed mortar contains the flame retardant material, the flame retardant and fireproof performance of the wall body is improved, the fire hazard is reduced, the mixed mortar adopts the phosphogypsum as the cementing material, the application field of the phosphogypsum is widened, the spray gun moves along a reasonable path in the spraying operation process, the operation of workers is convenient, the mixed mortar is uniformly sprayed, the construction efficiency is improved, in addition, the interruption condition of the spraying operation is timely handled, the safe and stable operation of the equipment is ensured, and the service life of the construction equipment is prolonged.
Description
Technical Field
The invention belongs to the technical field of building spraying construction, and particularly relates to a phosphogypsum-based mixed mortar wall spraying process.
Background
With the development of economy, various high-rise buildings are pulled out of the ground, and the spraying construction operation on the wall surfaces of the high-rise buildings is beneficial to optimizing the environment and brings beautiful feeling to people. However, because the structures and appearances of various buildings in cities are different, some difficulties are caused to the construction operation of wall spraying, most of the existing outdoor middle-low wall surface construction still adopts a manual construction mode, the construction mode of manual spraying is adopted, the spraying quality of the outer surface of a wall body is difficult to control, and the formed coating layer is easy to have the phenomena of uneven surface, hollowing, falling, cracking, water seepage and unstable thermal performance, and the phenomena are caused to a great extent because the spraying construction operation process is not standard, and the selection of process parameters such as the distance between a spray gun port and a surface to be sprayed, the moving speed of the spray gun and the like is not good during the spraying construction.
Disclosure of Invention
In order to solve the technical problems, the invention provides a spraying process of a phosphogypsum-based mixed mortar wall.
The invention is realized by the following technical scheme.
The invention provides a spraying process of a phosphogypsum-based mixed mortar wall, which mainly comprises the following steps:
the method comprises the following steps: preparing phosphogypsum powder: inputting the water-containing phosphogypsum into a pneumatic drier for dehydration and drying to obtain phosphogypsum powder, wherein the drying time is 1-4 hours, the drying temperature is controlled at 150-180 ℃, and the water content of the phosphogypsum powder is less than or equal to 3%;
step two: preparing mixed mortar: uniformly mixing and stirring magnesium hydroxide, polyvinyl alcohol, oxalic acid, phosphoric acid, fatty alcohol-polyoxyethylene ether sulfuric acid, quartz sand, cement, water and the phosphogypsum powder in the step one at the temperature of 80-120 ℃ for 5-10 min according to the following parts by mass, and then cooling to normal temperature to prepare mixed mortar;
magnesium hydroxide: 10-25 parts;
polyvinyl alcohol: 25-30 parts of a solvent;
oxalic acid: 12-15 parts;
phosphoric acid: 20-25 parts;
fatty alcohol polyoxyethylene ether sulfuric acid: 5-10 parts;
quartz sand: 5-10 parts;
cement: 30-50 parts of a solvent;
water: 50-80 parts;
phosphogypsum powder; 20-40 parts of a solvent;
step three: base surface treatment: selecting a wall surface to be sprayed and constructed on one side of a wall body as a base surface, and removing impurities on the base surface, a ceiling surface adjacent to the base surface and the ground;
step four: spraying mixed mortar: providing a spraying machine, wherein the spraying machine is provided with a storage bin and a spray gun, the spray gun is communicated with the storage bin through a conveying pipe, the mixed mortar in the step two is put into the storage bin, a port of the spray gun faces the base surface vertically, the spraying machine is started to enable the spray gun to do uniform linear motion in a vertical plane parallel to the base surface, meanwhile, the distance between the port of the spray gun and the base surface is kept constant, the mixed mortar is sprayed by the spray gun to be attached to the base surface, the mixed mortar forms a coating layer on the base surface, and a spraying track is formed by a path through which the spray gun moves;
step five: after the coating layer formed after the spraying treatment in the fourth step is condensed, taking the outer surface of the coating layer as a new base surface, repeating the third step to the fourth step for a plurality of times, spraying the new base surface for a plurality of times, and sequentially forming a plurality of coating layers on the original base surface in an overlapping manner;
step six: leveling a coating layer: scraping the outer surface of the last coating layer formed in the fifth step by using a scraping bar, and then rubbing the outer surface of the last coating layer by using a wood trowel to level;
step seven: calendering: performing press polishing treatment on the outer surface of the last layer of the coating layer after leveling treatment, namely, troweling the outer surface of the last layer of the coating layer again, and applying appropriate pressure to the interior of the coating layer in the troweling treatment process;
step eight: removing impurities: and after all the coating layers are condensed, removing all impurities on the ground adjacent to the wall.
In the third step, the step of removing the impurities on the base surface, the ceiling surface adjacent to the base surface and the ground further comprises the following steps:
step 1: installing an electric switch, a junction box and a pipeline on a wall body, and reserving a door and window hole on the wall body;
step 2: the external parts of the electrical switch, the junction box and the pipeline exposed to the base surface are shielded by plastic cloth, the door and window hole port reserved on the wall body is shielded by plastic cloth, and the garbage channel opening and the floor drain port on the ground adjacent to the base surface are shielded by plastic cloth;
and step 3: and (3) respectively marking the electric switch, the junction box, the pipeline, the door and window holes, the garbage channel opening and the floor drain port which are shielded by the plastic cloth in the step (2).
And step four, the spraying machine is also provided with casters, and the phosphogypsum-based mixed mortar wall spraying process further comprises the step of locking the casters before the step four.
The distance between the spray gun and the base surface in the fourth step is 10cm to 15 cm.
The thickness of each coating layer is less than 2 cm.
The process of spraying the mixed mortar in the fourth step further comprises the following steps:
step 1: defining a boundary line A between the base surface and the ground, defining a boundary line B between the base surface and the ceiling surface, and moving the spray gun to the left of the boundary line A;
step 2: enabling the spray gun to do uniform linear motion parallel to the boundary line A in the step 1, and moving the spray gun from the left side of the boundary line A to the right side of the boundary line A;
and step 3: raising the lance a suitable distance in a vertical direction relative to the ground;
and 4, step 4: enabling the spray gun to do uniform linear motion parallel to the boundary line A in the step 1, and moving the spray gun from the right side of the boundary line A to the left side of the boundary line A;
and 5: and (4) repeating the steps 2 to 4, and moving the spray gun to the left or right adjacent to the boundary line B.
The left side of the boundary line a means: the side edge of the wall body is close to the inner space of the building built by the wall body.
And in the second step, the interval time between the preparation of the mixed mortar and the putting into a storage bin for use is not more than 2 hours.
And in the process of spraying the mixed mortar in the fourth step, if the operation interruption with the duration time of more than 15min occurs, flushing the conveying pipeline by using clear water before spraying the base surface again.
The phosphogypsum-based mixed mortar wall spraying process further comprises the following steps: and after the step eight, cleaning the storage bin and the conveying pipeline by using clean water, and removing mixed mortar attached to the inner wall of the storage bin and the conveying pipeline.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the mixed mortar contains a large amount of flame retardant materials, the flame retardant and fireproof performance of the wall body is improved, the fire hazard is reduced, the mixed mortar adopts phosphogypsum as a base material as a cementing material, all structural components are tightly connected into a whole, the application field of the phosphogypsum is expanded, in the spraying operation process, the port of a spray gun keeps a constant distance with the surface to be sprayed, the uniform translation is kept in a vertical plane parallel to the surface to be sprayed, and the spray gun moves along a reasonable path, so that not only is the operation of an operator more convenient and fast, but also the mixed mortar can be uniformly sprayed on the surface to be sprayed, the surface of the obtained coating layer is smoother, the subsequent procedures of leveling, calendaring and the like are more time-saving and labor-saving, the construction efficiency is improved, in addition, the interruption of the operation occurring in the spraying operation process, corresponding treatment is carried out in time, so that the safety of the construction equipment is protected, the construction equipment can stably and safely operate for a long time, and the service life of the construction equipment is prolonged.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic drawing of the spray trajectory of the spray gun of the present invention.
In the figure: 1-boundary line a, 2-boundary line B, 3-spraying trajectory.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 and 2, the invention provides a phosphogypsum-based mixed mortar wall spraying process, which comprises the following steps:
the method comprises the following steps: preparing phosphogypsum powder: inputting the water-containing phosphogypsum into a pneumatic drier for dehydration and drying to obtain phosphogypsum powder, wherein the drying time is 1-4 hours, the drying temperature is controlled at 150-180 ℃, and the water content of the phosphogypsum powder is less than or equal to 3%;
step two: preparing mixed mortar: uniformly mixing and stirring magnesium hydroxide, polyvinyl alcohol, oxalic acid, phosphoric acid, fatty alcohol-polyoxyethylene ether sulfuric acid, quartz sand, cement, water and the phosphogypsum powder in the second step for 5-10 min at the temperature of 80-120 ℃ according to the following parts by weight, and then cooling to normal temperature to prepare mixed mortar;
magnesium hydroxide: 10-25 parts;
polyvinyl alcohol: 25-30 parts of a solvent;
oxalic acid: 12-15 parts;
phosphoric acid: 20-25 parts;
fatty alcohol polyoxyethylene ether sulfuric acid: 5-10 parts;
quartz sand: 5-10 parts;
cement: 30-50 parts of a solvent;
water: 50-80 parts;
phosphogypsum powder; 20-40 parts of a solvent;
in the second step, the interval time between the preparation of the mixed mortar and the putting into a storage bin for use is not more than 2 hours.
Step three: base surface treatment: selecting a wall surface to be sprayed and constructed on one side of a wall body as a base surface, and removing impurities on the base surface, a ceiling surface adjacent to the base surface and the ground;
step four: spraying mixed mortar: providing a spraying machine, wherein the spraying machine is provided with a storage bin and a spray gun, the spray gun is communicated with the storage bin through a conveying pipe, the mixed mortar in the step two is put into the storage bin, the port of the spray gun is enabled to vertically face the base surface, the spraying machine is started, the spray gun makes uniform linear motion in a vertical plane parallel to the base surface, meanwhile, the distance between the port of the spray gun and the base surface is kept constant, the mixed mortar is sprayed through the spray gun and attached to the base surface, the mixed mortar forms a coating layer on the base surface, and a spraying track is formed by a path through which the spray gun moves; further, the spraying machine in the fourth step is also provided with a caster, and the spraying process of the phosphogypsum-based mixed mortar wall further comprises the step of locking the caster before the fourth step. In the fourth step, the distance between the spray gun and the base surface is 10 cm-15 cm. The thickness of each coating layer is less than 2 cm. In the process of spraying the mixed mortar in the fourth step, if the operation interruption with the duration time of more than 15min occurs, the conveying pipeline is flushed by using clean water before spraying the base surface again.
Step five: after the coating layer formed after the spraying treatment in the fourth step is condensed, taking the outer surface of the coating layer as a new base surface, repeating the third step to the fourth step for a plurality of times, spraying the new base surface for a plurality of times, and sequentially forming a plurality of coating layers on the original base surface in an overlapping manner;
step six: leveling a coating layer: scraping the outer surface of the last coating layer formed in the fifth step by using a scraping bar, and then rubbing the outer surface of the last coating layer by using a wood trowel to level;
step seven: calendering: performing press polishing treatment on the outer surface of the last layer of the coating layer after leveling treatment, namely, troweling the outer surface of the last layer of the coating layer again, and applying appropriate pressure to the interior of the coating layer in the troweling treatment process;
step eight: removing impurities: and after all the coating layers are condensed, removing all impurities on the ground adjacent to the wall.
Further, the step three of removing the impurities on the base surface, the ceiling surface adjacent to the base surface and the ground further comprises the following steps:
step 1: installing an electric switch, a junction box and a pipeline on a wall body, and reserving a door and window hole on the wall body;
step 2: the external parts of the electric switch, the junction box and the pipeline exposed to the base surface are shielded by plastic cloth, the door and window hole ports reserved on the wall body are shielded by plastic cloth, and the garbage channel opening and the floor drain port on the ground adjacent to the base surface are shielded by plastic cloth;
and step 3: and (3) respectively marking the electric switch, the junction box, the pipeline, the door and window holes, the garbage channel opening and the floor drain port which are shielded by the plastic cloth in the step (2).
Further, as shown in fig. 2, the process of spraying the mixed mortar in the fourth step further includes the following steps:
step 1: defining the boundary line between the base surface and the ground as a boundary line A, defining the boundary line between the base surface and the ceiling surface as a boundary line B, and moving the spray gun to the left of the boundary line A; the left side of the boundary line a means: the side edge of the wall body is close to the inner space of the building built by the wall body.
Step 2: enabling the spray gun to do uniform linear motion parallel to the boundary line A in the step 1, and moving the spray gun from the left side of the boundary line A to the right side of the boundary line A;
and step 3: raising the lance a suitable distance in a vertical direction relative to the ground;
and 4, step 4: enabling the spray gun to do uniform linear motion parallel to the boundary line A in the step 1, and moving the spray gun from the right side of the boundary line A to the left side of the boundary line A;
and 5: repeating the steps 2 to 4 to move the spray gun to the left or right adjacent to the boundary line B.
By adopting the technical scheme provided by the invention, the moving track of the spray gun follows the principle of 'inside-outside-first and bottom-up-first', and the mixed mortar in the area sprayed first is coagulated in time, so the spraying is carried out according to the moving track of the spray gun of the invention, the coagulation sequence of the mixed mortar is 'inside-outside-first and bottom-up-first', and the part of the mixed mortar in the non-coagulated area flows towards the surface of the coating layer in the partially coagulated area, but the partial coagulation in the coating layer does not cause the reduction of the spraying quality and the non-uniform spraying phenomenon.
In addition, the phosphogypsum-based mixed mortar wall spraying process also comprises the following steps: and after the step eight, cleaning the storage bin and the conveying pipeline by using clean water, and removing mixed mortar attached to the inner wall of the storage bin and the conveying pipeline.
By adopting the technical scheme of the invention, the mixed mortar contains a large amount of flame retardant materials, the flame retardant and fireproof performance of the wall body is improved, the fire hazard is reduced, the mixed mortar adopts phosphogypsum as a base material as a cementing material, all structural components are tightly connected into a whole, the application field of the phosphogypsum is expanded, in the spraying operation process, the port of a spray gun keeps a constant distance with the surface to be sprayed, the uniform translation is kept in a vertical plane parallel to the surface to be sprayed, and the spray gun moves along a reasonable path, so that not only is the operation of an operator more convenient and fast, but also the mixed mortar can be uniformly sprayed on the surface to be sprayed, the surface of the obtained coating layer is smoother, the subsequent procedures of leveling, calendaring and the like are more time-saving and labor-saving, the construction efficiency is improved, in addition, the interruption of the operation occurring in the spraying operation process, corresponding treatment is carried out in time, so that the safety of the construction equipment is protected, the construction equipment can stably and safely operate for a long time, and the service life of the construction equipment is prolonged.
Claims (10)
1. A phosphogypsum-based mixed mortar wall spraying process is characterized in that: the method comprises the following steps:
the method comprises the following steps: preparing phosphogypsum powder: inputting the water-containing phosphogypsum into a pneumatic drier for dehydration and drying to obtain phosphogypsum powder, wherein the drying time is 1-4 hours, the drying temperature is controlled at 150-180 ℃, and the water content of the phosphogypsum powder is less than or equal to 3%;
step two: preparing mixed mortar: uniformly mixing and stirring magnesium hydroxide, polyvinyl alcohol, oxalic acid, phosphoric acid, fatty alcohol-polyoxyethylene ether sulfuric acid, quartz sand, cement, water and the phosphogypsum powder in the step one at the temperature of 80-120 ℃ for 5-10 min according to the following parts by mass, and then cooling to normal temperature to prepare mixed mortar;
magnesium hydroxide: 10-25 parts;
polyvinyl alcohol: 25-30 parts of a solvent;
oxalic acid: 12-15 parts;
phosphoric acid: 20-25 parts;
fatty alcohol polyoxyethylene ether sulfuric acid: 5-10 parts;
quartz sand: 5-10 parts;
cement: 30-50 parts of a solvent;
water: 50-80 parts;
phosphogypsum powder; 20-40 parts of a solvent;
step three: base surface treatment: selecting a wall surface to be sprayed and constructed on one side of a wall body as a base surface, and removing impurities on the base surface, a ceiling surface adjacent to the base surface and the ground;
step four: spraying mixed mortar: providing a spraying machine, wherein the spraying machine is provided with a storage bin and a spray gun, the spray gun is communicated with the storage bin through a conveying pipe, the mixed mortar in the step two is put into the storage bin, a port of the spray gun faces the base surface vertically, the spraying machine is started to enable the spray gun to do uniform linear motion in a vertical plane parallel to the base surface, meanwhile, the distance between the port of the spray gun and the base surface is kept constant, the mixed mortar is sprayed by the spray gun to be attached to the base surface, the mixed mortar forms a coating layer on the base surface, and a spraying track is formed by a path through which the spray gun moves;
step five: after the coating layer formed after the spraying treatment in the fourth step is condensed, taking the outer surface of the coating layer as a new base surface, repeating the third step to the fourth step for a plurality of times, spraying the new base surface for a plurality of times, and sequentially forming a plurality of coating layers on the original base surface in an overlapping manner;
step six: leveling a coating layer: scraping the outer surface of the last coating layer formed in the fifth step by using a scraping bar, and then rubbing the outer surface of the last coating layer by using a wood trowel to level;
step seven: calendering: performing press polishing treatment on the outer surface of the last layer of the coating layer after leveling treatment, namely, troweling the outer surface of the last layer of the coating layer again, and applying appropriate pressure to the interior of the coating layer in the troweling treatment process;
step eight: removing impurities: and after all the coating layers are condensed, removing all impurities on the ground adjacent to the wall.
2. The phosphogypsum-based mixed mortar wall spraying process of claim 1, which is characterized in that: in the third step, the step of removing the impurities on the base surface, the ceiling surface adjacent to the base surface and the ground further comprises the following steps:
step 1: installing an electric switch, a junction box and a pipeline on a wall body, and reserving a door and window hole on the wall body;
step 2: the external parts of the electrical switch, the junction box and the pipeline exposed to the base surface are shielded by plastic cloth, the door and window hole port reserved on the wall body is shielded by plastic cloth, and the garbage channel opening and the floor drain port on the ground adjacent to the base surface are shielded by plastic cloth;
and step 3: and (3) respectively marking the electric switch, the junction box, the pipeline, the door and window holes, the garbage channel opening and the floor drain port which are shielded by the plastic cloth in the step (2).
3. The phosphogypsum-based mixed mortar wall spraying process of claim 1, which is characterized in that: and step four, the spraying machine is also provided with casters, and the phosphogypsum-based mixed mortar wall spraying process further comprises the step of locking the casters before the step four.
4. The phosphogypsum-based mixed mortar wall spraying process of claim 1, which is characterized in that: the distance between the spray gun and the base surface in the fourth step is 10cm to 15 cm.
5. The phosphogypsum-based mixed mortar wall spraying process of claim 1, which is characterized in that: the thickness of each coating layer is less than 2 cm.
6. The phosphogypsum-based mixed mortar wall spraying process of claim 3, which is characterized in that: the process of spraying the mixed mortar in the fourth step further comprises the following steps:
step 1: defining a boundary line A between the base surface and the ground, defining a boundary line B between the base surface and the ceiling surface, and moving the spray gun to the left of the boundary line A;
step 2: enabling the spray gun to do uniform linear motion parallel to the boundary line A in the step 1, and moving the spray gun from the left side of the boundary line A to the right side of the boundary line A;
and step 3: raising the lance a suitable distance in a vertical direction relative to the ground;
and 4, step 4: enabling the spray gun to do uniform linear motion parallel to the boundary line A in the step 1, and moving the spray gun from the right side of the boundary line A to the left side of the boundary line A;
and 5: and (4) repeating the steps 2 to 4, and moving the spray gun to the left or right adjacent to the boundary line B.
7. The phosphogypsum-based mixed mortar wall spraying process of claim 6, which is characterized in that: the left side of the boundary line a means: the side edge of the wall body is close to the inner space of the building built by the wall body.
8. The phosphogypsum-based mixed mortar wall spraying process of claim 1, which is characterized in that: and in the second step, the interval time between the preparation of the mixed mortar and the putting into a storage bin for use is not more than 2 hours.
9. The phosphogypsum-based mixed mortar wall spraying process of claim 1, which is characterized in that: and in the process of spraying the mixed mortar in the fourth step, if the operation interruption with the duration time of more than 15min occurs, flushing the conveying pipeline by using clear water before spraying the base surface again.
10. The phosphogypsum-based mixed mortar wall spraying process of claim 1, which is characterized in that: the phosphogypsum-based mixed mortar wall spraying process further comprises the following steps: and after the step eight, cleaning the storage bin and the conveying pipeline by using clean water, and removing mixed mortar attached to the inner wall of the storage bin and the conveying pipeline.
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| CN202010732718.5A CN111747720A (en) | 2020-07-27 | 2020-07-27 | Phosphogypsum-based mixed mortar wall spraying process |
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| CN202010732718.5A CN111747720A (en) | 2020-07-27 | 2020-07-27 | Phosphogypsum-based mixed mortar wall spraying process |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2334715C1 (en) * | 2007-03-05 | 2008-09-27 | Юлия Алексеевна Щепочкина | Raw mix for manufacturing plaster brick |
| CN103274734A (en) * | 2013-06-12 | 2013-09-04 | 许庆华 | Ardealite composite type foaming agent |
| CN108625593A (en) * | 2018-05-31 | 2018-10-09 | 贵州益新装配式新型建材有限公司 | A kind of wall spray coating constructing technique |
| CN110436874A (en) * | 2019-09-12 | 2019-11-12 | 德清扬泰建筑材料有限公司 | A kind of high-performance ardealite based self-leveling mortar preparation method |
-
2020
- 2020-07-27 CN CN202010732718.5A patent/CN111747720A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2334715C1 (en) * | 2007-03-05 | 2008-09-27 | Юлия Алексеевна Щепочкина | Raw mix for manufacturing plaster brick |
| CN103274734A (en) * | 2013-06-12 | 2013-09-04 | 许庆华 | Ardealite composite type foaming agent |
| CN108625593A (en) * | 2018-05-31 | 2018-10-09 | 贵州益新装配式新型建材有限公司 | A kind of wall spray coating constructing technique |
| CN110436874A (en) * | 2019-09-12 | 2019-11-12 | 德清扬泰建筑材料有限公司 | A kind of high-performance ardealite based self-leveling mortar preparation method |
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Application publication date: 20201009 |