Inner wall phosphogypsum spraying and plastering construction method

Abstract

The invention discloses an inner wall ardealite spraying and plastering construction method. The method comprises the following steps that S1, ardealite plastering mortar is prepared; s2, screeding is conducted, specifically, standard ribs are manufactured on the wall face through the ardealite plastering mortar in the step S1; s3, spraying: spraying the ardealite plastering mortar in the step S1 onto the wall surface by virtue of spraying equipment; s4, strickling, wherein strickling of the wall surface phosphogypsum plastering mortar is completed by means of a strickling device; s5, wall surface maintenance; the slicking device comprises a movable base; the lifting frame is arranged on the movable base in a manner of being driven to lift; the first lead screw nut mechanism is arranged on the movable base and used for driving the lifting frame to ascend and descend. The sliding frame can be driven to slide in the direction perpendicular to the wall face and can be arranged on the lifting frame in a locked mode. The scraping plate is rotationally arranged on the sliding frame in a locked manner; the construction method is high in construction efficiency and can ensure the construction quality.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a method for spraying phosphogypsum plastering on an interior wall. Background Art

[0002] At present, the plastering of the interior walls of buildings is basically done with traditional cement mortar plastering. In the construction process of large-area factory interior wall plastering, the thickness of cement mortar plastering is generally controlled at 1.5-2.5cm. The thickness is large, so the material consumption is large, which is not conducive to cost control. In addition, due to the complex construction process of traditional cement mortar plastering, it needs to be mixed on site during production, which affects the civilized construction on site. Putty needs to be applied in the later stage of construction, which consumes a lot of manpower and is not conducive to quality management and progress control. Phosphogypsum plastering has the characteristics of low material consumption and convenient construction. It can be used for the plastering of the interior walls of large-area factories such as industrial factories, which is conducive to reducing the cost of plastering and improving the construction progress. However, there are few studies on the construction process of large-area interior wall phosphogypsum plastering, which is not perfect enough. In addition, due to the relatively thin construction thickness of the interior wall phosphogypsum plastering (generally controlled at 1-1.5cm), the construction quality of large-area wall flatness is not easy to control. As for interior wall construction, higher requirements are placed on construction quality. If the coating is unqualified, rework will be required, which will slow down the construction progress.

[0003] Therefore, it is necessary to provide a construction method that can be applicable to large-area interior wall phosphogypsum plastering, in order to improve construction efficiency, while being able to help ensure construction quality, reduce rework, and reduce waste of human resources. Summary of the invention

[0004] In view of this, the object of the present invention is to provide an interior wall phosphogypsum spray plastering construction method, which can be beneficial to improving construction efficiency, while being beneficial to ensuring construction quality, reducing rework, and reducing waste of human resources.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for spraying plaster on interior walls of phosphogypsum, comprising the following steps:

[0006] S1: Preparation of phosphogypsum plaster mortar: weighing and mixing the raw materials according to the proportion, adding them into a mixer in sequence, and obtaining phosphogypsum plaster mortar after sufficient mixing;

[0007] S2: Punching reinforcement, using the phosphogypsum plaster mortar in step S1 to make reinforcement on the wall surface;

[0008] S3: spraying, spraying the phosphogypsum plaster mortar in step S1 onto the wall surface by means of a spraying device;

[0009] S4: Scraping and leveling: Scraping and leveling the phosphogypsum plaster mortar on the wall with the help of a scraping and leveling device;

[0010] S5: Wall maintenance;

[0011] Wherein, the scraping device in step S4 comprises:

[0012] Removable base;

[0013] A lifting frame, which can be driven to rise and fall and is arranged on a movable base;

[0014] A first screw nut mechanism is provided on the movable base and is used to drive the lifting frame to move upward and downward;

[0015] A sliding frame, which can be driven to slide along a direction perpendicular to the wall and can be locked and arranged on the lifting frame;

[0016] The scraper is arranged on the slide in a lockable rotation.

[0017] Furthermore, the raw materials include the following components: 75-80 parts of phosphogypsum, 10-12 parts of fine sand and gravel, 5-8 parts of light aggregate, 0.1-0.2 parts of retarder, 0.3-0.5 parts of water retaining agent, 0.05-0.1 parts of anti-sagging agent, 0.1-0.2 parts of strengthening agent, 0.2-0.5 parts of fiber, and 0-2 parts of whitening agent.

[0018] Further, the spraying in step S3 includes the following steps:

[0019] S31: Clean the base wall and moisten the wall with water before spraying;

[0020] S32: Stirring: putting the phosphogypsum plaster mortar prepared in step S1 into a mixing box of a spraying device, adding water and stirring evenly (the volume ratio of water to powder is 1:2, and the weight ratio is 7:10), and the stirring time is 2 min-3 min;

[0021] S33: Use the spray nozzle of the spraying equipment to evenly spray the phosphogypsum plaster mortar stirred evenly in step S32 onto the cleaned wall surface, and ensure that the phosphogypsum plaster mortar stirred evenly is used up within 45 minutes.

[0022] Further, in step S33, the spraying order is from top to bottom, and the spraying angle of the nozzle is maintained at an upward inclination of 30-45 degrees.

[0023] Furthermore, the movable base includes a base plate and four sets of casters with foot brake functions which are arranged at the four corners of the bottom of the base plate.

[0024] Furthermore, the lifting frame includes a lifting plate and four groups of guide columns respectively fixed at the four corners of the base plate, and the lifting plate is slidably arranged on the four groups of guide columns with a single degree of freedom; the first screw and nut mechanism includes a first screw, a servo motor and a first nut sleeve, the first screw is rotatably arranged at the center of the base plate, the servo motor is fixed at the bottom of the base plate and is transmission-connected to the first screw, and the first nut sleeve is fixed to the lifting plate and is threadedly connected to the first screw.

[0025] Furthermore, an I-shaped reinforcement frame is provided on the top of the four groups of guide columns, and the top of the first lead screw is rotatably connected to the I-shaped reinforcement frame.

[0026] Furthermore, L-shaped guide plates are fixedly arranged at the four corners of the lifting plate, and the L-shaped guide plates can be slidably arranged on the guide columns at the corresponding positions.

[0027] Furthermore, two groups of rectangular guide sleeves are fixedly provided on the top of the lifting plate, and the slide includes two groups of slide columns respectively slidably arranged in the two groups of rectangular guide sleeves and a connecting beam fixedly arranged between the two groups of slide columns; two groups of hinged supports are provided on the back of the scraper, and the two groups of hinged supports are respectively connected to the ends of the two groups of slide columns through locking bolts; a second screw-nut mechanism is provided on the top surface of the lifting plate, and the second screw-nut mechanism includes a second screw rotatably installed on the lifting plate and a second nut sleeve threadedly connected to the second screw, the second nut sleeve is fixed on the connecting beam, and a rotating handwheel is fixed at the end of the second screw.

[0028] Furthermore, the scraper is provided with two long strip-shaped slurry leakage holes, and the two slurry leakage holes are arranged side by side in the vertical direction.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The interior wall phosphogypsum spray plastering construction method provided by the present invention has high construction efficiency and good construction quality, and can meet the construction quality of large-area interior wall plastering, thereby ensuring the construction progress; specifically, by adopting the phosphogypsum spray plastering construction process, the material consumption is small, and the material cost and labor cost of interior wall plastering can be effectively reduced. The designed scraping device has high scraping efficiency and can effectively ensure the flatness construction requirement of the relatively thin phosphogypsum sprayed wall surface.

[0031] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1Schematic diagram of the shaft side structure of the scraping device of the present invention

[0033] Figure 2 The structural diagram of the lifting frame of the present invention is

[0034] Figure markings: 1- movable base; 101- bottom plate; 102- casters; 2- lifting frame; 201- lifting plate; 201a- L-shaped guide plate; 201b- rectangular guide sleeve; 202- guide column; 203- I-shaped reinforcement frame; 3- first screw and nut mechanism; 301- first screw; 302- servo motor; 303- first nut sleeve; 4- slide; 401- slide column; 402- connecting beam; 5- scraper; 501- hinged support; 502- leakage hole; 6- locking bolt; 7- second screw; 701- turning hand wheel. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. It should be noted that the drawings are only for illustrative purposes, and only represent schematic diagrams, not physical drawings, and cannot be understood as limitations on the present invention; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0036] See also Figure 1-2 , a method for spraying plaster on interior walls of phosphogypsum comprises the following steps:

[0037] S1: Preparation of phosphogypsum plaster mortar: weighing and mixing the raw materials according to the proportion, adding them into a mixer in sequence, and obtaining phosphogypsum plaster mortar after sufficient mixing;

[0038] S2: Punching reinforcement, using the phosphogypsum plaster mortar in step S1 to make marking reinforcement on the wall surface, with the distance between two marking reinforcements being less than 1.5m;

[0039] S3: spraying, spraying the phosphogypsum plaster mortar in step S1 onto the wall surface by means of a spraying device;

[0040] S4: Scraping and leveling: Scraping and leveling the phosphogypsum plaster mortar on the wall with the help of a scraping and leveling device;

[0041] S5: Wall maintenance;

[0042] The scraping device in step S4 includes: a movable base 1; a lifting frame 2, which can be driven to rise and fall and is arranged on the movable base 1; a first screw nut mechanism 3, which is arranged on the movable base 1 and is used to drive the lifting frame 2 to rise and fall; a slide 4, which can be driven to slide in a direction perpendicular to the wall and can be locked on the lifting frame 2; a scraper 5, which can be locked and rotated on the slide 4; when in use, first move the movable base 1 to the position where scraping is required, then lower the lifting frame 2 to the lowest position, then rotate and adjust the verticality of the scraper 5, ensure that the scraper 5 is vertical and then lock the scraper 5, then move the slide 4 so that the two ends of the scraper 5 are close to the two adjacent marking bars in step S2, then lock the position of the slide 4, drive the lifting frame 2 to rise and drive the scraper 5 to complete the wall smoothing; then move the movable base 1 to the next position to start the smoothing construction of the next position until the wall is completely constructed; of course, the internal corner is still smoothed manually; the above-mentioned The method for spraying plastering on interior walls with phosphogypsum has high construction efficiency and good construction quality, and can meet the construction quality of large-area interior wall plastering, thereby ensuring the construction progress; specifically, by adopting the phosphogypsum spraying plastering construction process, the material consumption is small, and the material cost and labor cost of interior wall plastering can be effectively reduced; the designed scraping device has high scraping efficiency and can effectively ensure the flatness construction requirements of relatively thin phosphogypsum sprayed wall surfaces; more specifically, since the scraping device uses a screw nut mechanism to drive the lifting and lowering, the movement stability of the scraper 5 during the scraping process can be ensured, thereby ensuring the consistency of the wall surface; since the scraper 5 can be locked and rotated on the slide 4, the verticality of the scraper 5 can be adjusted by rotating the scraper 5, and since the slide 4 can be locked, after the position of the slide 4 is locked, the scraper 5 can be moved vertically to complete the wall scraping at one time, which greatly improves the construction efficiency, is particularly suitable for the construction of large-area interior walls, and there is no need to manually set up a scaffold for operation in the height direction.

[0043] In this embodiment, the raw materials include the following components: 75-80 parts of phosphogypsum, 10-12 parts of fine sand and gravel, 5-8 parts of light aggregate, 0.1-0.2 parts of retarder, 0.3-0.5 parts of water retaining agent, 0.05-0.1 parts of anti-sagging agent, 0.1-0.2 parts of strengthening agent, 0.2-0.5 parts of fiber, and 0-2 parts of whitening agent; the phosphogypsum plaster mortar prepared with the raw materials of this component can effectively avoid hollowing, has high bonding strength, good water retention, is not easy to pulverize, has good smoothness when scraping, and can be used with the above-mentioned leveling device to complete automatic leveling of the wall surface, with good leveling effect and low rework rate; in addition, the phosphogypsum plaster mortar prepared with the raw materials of this component is environmentally friendly and has good appearance after leveling. It can be directly used as a decorative surface after one-time spraying and leveling, which is conducive to simplifying the construction process.

[0044] In this embodiment, the spraying in step S3 includes the following steps:

[0045] S31: Clean the base wall and moisten the wall with water before spraying. More specifically, the tension bolt holes on the shear wall should be sealed in time; the protruding parts such as the expansion concrete should be chiseled; the switch duct should be installed in place and repaired and leveled with light plaster; the dust on the base wall must be cleaned, which can be cleaned with a sweeping belt or rinsed with water one day in advance;

[0046] S32: Stirring, putting the phosphogypsum plaster mortar prepared in step S1 into the mixing box of the spraying equipment, adding water and stirring evenly (the volume ratio of water to powder is 1:2, and the weight ratio is 7:10), and the stirring time is 2min-3min. More specifically: the slurry hardeners remaining in the barrel have a coagulation-promoting effect, which will affect the coagulation time of the slurry stirred next time. Before stirring, the residual slurry hardeners in the barrel must be cleaned up; static manual stirring;

[0047] S33: using a spraying device to spray the phosphogypsum plaster mortar stirred evenly in step S32 evenly onto the cleaned wall surface, and ensuring that the stirred phosphogypsum plaster mortar is used up within 45 minutes. More specifically, the spraying device here can be an existing gypsum spraying machine;

[0048] The spraying method of the phosphogypsum plaster mortar has high spraying efficiency and good spraying quality, and is conducive to completing one-time scraping construction in cooperation with a scraping device for subsequent construction; the scraping begins after the phosphogypsum plaster mortar has initially set.

[0049] In this embodiment, in step S33, the spraying order is from top to bottom, and the spraying angle of the nozzle is maintained at an upward inclination of 30-45 degrees. This spraying method has good spraying effect and good uniformity.

[0050] In this embodiment, the movable base 1 includes a base plate 101 and four sets of casters 102 with foot brake functions arranged at the four corners of the bottom of the base plate 101. It has a simple structure and reliable support. The casters 102 can be used to complete position locking to prevent displacement during the leveling construction process and affect the leveling effect.

[0051] In this embodiment, the lifting frame 2 includes a lifting plate 201 and four groups of guide columns 202 respectively fixed at the four corners of the base plate 101, and the lifting plate 201 is slidably arranged on the four groups of guide columns 202 with a single degree of freedom; the first screw and nut mechanism 3 includes a first screw 301, a servo motor 302 and a first nut sleeve 303, the first screw 301 is rotatably arranged at the center of the base plate 101, the servo motor 302 is fixed at the bottom of the base plate 101 and is transmission-connected to the first screw 301, and the first nut sleeve 303 is fixed to the lifting plate 201 and is threadedly connected to the first screw 301; the lifting frame 2 in this structural design has good structural strength and simple structure, and the first screw 301 is driven to rotate by the servo motor 302 to drive the lifting plate 201 to rise and fall, and has good operating stability, which is conducive to further improving the scraping quality.

[0052] In this embodiment, an I-shaped reinforcement frame 203 is provided on the top of the four groups of guide columns 202, and the top of the first screw 301 is rotatably connected to the I-shaped reinforcement frame 203; by providing the I-shaped reinforcement frame 203, the stability of the overall structure is further improved, thereby facilitating the construction of higher walls, ensuring the installation stability of the first screw 301, and reducing vibration during operation, thereby facilitating further improving the construction quality.

[0053] In this embodiment, L-shaped guide plates 201a are fixedly provided at the four corners of the lifting plate 201, and the L-shaped guide plates 201a can be slidably arranged on the guide columns 202 at the corresponding positions; by arranging the L-shaped guide plates 201a and coordinating the installation with the guide columns 202, it is beneficial to further improve the operating stability of the overall structure, thereby further improving the construction quality of the scraping construction.

[0054] In this embodiment, two groups of rectangular guide sleeves 201b are fixedly arranged on the top of the lifting plate 201, and the slide 4 includes two groups of slide posts 401 respectively slidably arranged in the two groups of rectangular guide sleeves 201b and a connecting crossbeam 402 fixedly arranged between the two groups of slide posts 401; the back of the scraper 5 is provided with two groups of hinged supports 501, and the two groups of hinged supports 501 are respectively connected to the ends of the two groups of slide posts 401 through locking bolts 6; the top surface of the lifting plate 201 is provided with a second screw nut mechanism, and the second screw nut mechanism includes a screw nut rotatably installed on the lifting plate 201 The second lead screw 7 and the second nut sleeve 8 threadedly connected to the second lead screw 7, the second nut sleeve 8 is fixedly arranged on the connecting cross beam 402, and a rotating hand wheel 701 is fixedly arranged at the end of the second lead screw 7; the slide 4 in this structural design has good structural reliability, good running stability, and convenient use and adjustment; when used specifically, the distance between the scraper 5 and the wall can be adjusted by manually rotating the rotating hand wheel 701 so that the scraper 5 fits on the marking rib; the verticality of the scraper 5 can be adjusted by loosening the locking bolt 6 and then rotating the scraper 5, and the locking bolt 6 can be tightened after adjustment, and the adjustment is convenient and reliable.

[0055] In this embodiment, the scraper 5 is provided with two long leakage holes 502, and the two leakage holes 502 are arranged side by side in the vertical direction; by setting the two leakage holes 502, three scraper areas of upper, middle and lower can be formed, that is, one construction is equivalent to three leveling constructions, which greatly improves the flatness and verticality of the wall surface. Since the scraper 5 is driven to rise and fall by a screw, it has good consistency.

[0056] Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A method for spraying phosphogypsum for interior walls, characterized in that: The steps include: S1: Preparation of phosphogypsum plaster mortar, weighing and mixing the raw materials according to the proportion, adding them into a mixer in sequence, and obtaining phosphogypsum plaster mortar after sufficient mixing; S2: Punching reinforcement, using the phosphogypsum plaster mortar in step S1 to make reinforcement on the wall surface; S3: spraying, spraying the phosphogypsum plaster mortar in step S1 onto the wall surface by means of a spraying device; S4: Scraping and leveling: Scraping and leveling the phosphogypsum plaster mortar on the wall with the help of a scraping and leveling device; S5: Wall maintenance; Wherein, the scraping device in step S4 comprises: Removable base; A lifting frame, which can be driven to rise and fall and is arranged on a movable base; A first screw nut mechanism is provided on the movable base and is used to drive the lifting frame to move upward and downward; A sliding frame, which can be driven to slide along a direction perpendicular to the wall and can be locked and arranged on the lifting frame; The scraper is arranged on the slide in a lockable rotation.

2. The method for spraying phosphogypsum for interior walls according to claim 1, characterized in that: The raw materials include the following components: 75-80 parts of phosphogypsum, 10-12 parts of fine sand and gravel, 5-8 parts of light aggregate, 0.1-0.2 parts of retarder, 0.3-0.5 parts of water retaining agent, 0.05-0.1 parts of anti-sagging agent, 0.1-0.2 parts of strengthening agent, 0.2-0.5 parts of fiber and 0-2 parts of whitening agent.

3. The interior wall phosphogypsum spray plastering construction method according to claim 2, characterized in that: The spraying in step S3 includes the following steps: S31: Clean the base wall and moisten the wall with water before spraying; S32: Stirring: putting the phosphogypsum plaster mortar prepared in step S1 into a mixing box of a spraying device, adding water and stirring evenly (the volume ratio of water to powder is 1:2, and the weight ratio is 7:10), and the stirring time is 2 min-3 min; S33: Use the spray nozzle of the spraying equipment to evenly spray the phosphogypsum plaster mortar stirred evenly in step S32 onto the cleaned wall surface, and ensure that the phosphogypsum plaster mortar stirred evenly is used up within 45 minutes.

4. The interior wall phosphogypsum spray plastering construction method according to claim 3 is characterized in that: In step S33, the spraying sequence is from top to bottom, and the spraying angle of the nozzle is maintained at an upward inclination of 30-45 degrees.

5. The interior wall phosphogypsum spray plastering construction method according to claim 1, characterized in that: The movable base comprises a bottom plate and four sets of casters with foot brake functions which are arranged at four corners of the bottom of the bottom plate.

6. The method for spraying phosphogypsum for interior walls according to claim 5, characterized in that: The lifting frame comprises a lifting plate and four sets of guide columns respectively fixed at the four corners of the bottom plate, and the lifting plate is slidably arranged on the four sets of guide columns with a single degree of freedom; The first screw and nut mechanism includes a first screw, a servo motor and a first nut sleeve. The first screw is rotatably arranged at the center of the base plate. The servo motor is fixed at the bottom of the base plate and is transmission-connected to the first screw. The first nut sleeve is fixed to the lifting plate and is threadedly connected to the first screw.

7. The method for spraying phosphogypsum for interior walls according to claim 6, characterized in that: An I-shaped reinforcement frame is provided on the top of the four groups of guide columns, and the top of the first lead screw is rotatably connected to the I-shaped reinforcement frame.

8. The method for spraying phosphogypsum for interior walls according to claim 6, characterized in that: L-shaped guide plates are fixedly arranged at the four corners of the lifting plate, and the L-shaped guide plates can be slidably arranged on the guide columns at the corresponding positions.

9. The method for spraying phosphogypsum for interior walls according to claim 6, characterized in that: Two groups of rectangular guide sleeves are fixedly arranged on the top of the lifting plate, and the slide frame includes two groups of sliding columns respectively and correspondingly arranged in the two groups of rectangular guide sleeves and a connecting beam fixedly arranged between the two groups of sliding columns; The back of the scraper is provided with two sets of hinged supports, which are respectively connected to the ends of the two sets of sliding columns via locking bolts; A second screw-nut mechanism is provided on the top surface of the lifting plate, and the second screw-nut mechanism includes a second screw rotatably mounted on the lifting plate and a second nut sleeve threadedly connected to the second screw, the second nut sleeve is fixed on the connecting beam, and a rotating handwheel is fixed at the end of the second screw.

10. The method for spraying phosphogypsum for interior walls according to claim 9, characterized in that: The scraper is provided with two long strip-shaped slurry leakage holes, and the two slurry leakage holes are arranged side by side in the vertical direction.

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