CN109723205B - Thick fireproof coating construction device and construction method thereof - Google Patents
Thick fireproof coating construction device and construction method thereof Download PDFInfo
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- CN109723205B CN109723205B CN201811578695.6A CN201811578695A CN109723205B CN 109723205 B CN109723205 B CN 109723205B CN 201811578695 A CN201811578695 A CN 201811578695A CN 109723205 B CN109723205 B CN 109723205B
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Abstract
The invention relates to a thick fireproof coating construction device and a construction method thereof, wherein the construction device comprises an integral coating template, the integral coating template is of a cylindrical structure capable of being expanded circumferentially, two ends of the integral coating template are open, the integral coating template is locked in a circumferential sealing mode when being locked, the shape of the cylindrical structure is matched with the appearance structure of preformed coating on the outer side of a steel structure, a plurality of material ports are arranged on the integral coating template at intervals along the length direction, valves are arranged in the material ports, and two ends of the integral coating template are provided with baffles and sealing strips capable of being matched and sealed with gaskets at the end. According to the invention, the fireproof coating on the outer side of the steel structure is constructed and integrally formed by injecting the fireproof coating into the integral coating template, so that the problems of easy cracking, high forming difficulty, material waste, high construction pollution, serious construction period loss and the like of the thick fireproof coating in the traditional construction mode can be effectively solved, the construction quality of the thick fireproof coating is effectively improved, and the construction efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of coating construction, and particularly relates to a thick fireproof coating construction device and a construction method thereof.
Background
The steel structure building receives more and more designer favours because characteristics such as light in weight, intensity are high, the bulk rigidity is good, deformability is strong, long service life, especially the great workshop of span, adopts steel structure building mostly. However, the steel structure has lower fire resistance, needs to be assisted to carry out the construction of the fireproof coating, improves the fireproof performance, and often adopts thick fireproof coating for steel structure buildings with higher fireproof requirements.
Because the temperature deformation of the steel structure is larger than that of the fireproof coating, the steel structure is easy to crack after the fireproof coating is constructed, and the larger the coating area is, the more and the larger the temperature crack is. The construction unit usually adopts the modes of spraying, smearing and prefabricating and pasting to carry out the construction of the fireproof paint.
When the spraying method is adopted for construction, the fireproof coating is thick in thickness requirement, steel does not absorb water, the thickness of the fireproof coating is not easy to control, multiple times of spraying is needed, the forming is difficult, the construction period loss is serious, the construction quality is affected, and a large amount of material waste and environmental pollution can be caused by large-area spraying. When the coating method is adopted for construction, the thick fireproof coating does not have a supporting point, the thick fireproof coating needs to be coated for many times, the net is hung to prevent cracking, and the construction time span is large. When the prefabricated pasting method is adopted for large-area construction, the construction on the vertical steel column is influenced by the powder property of the fireproof coating, the requirement on the performance of the glue is high, and after the pasting is finished, temporary fixing facilities are usually needed to help the steel structure and the thick fireproof coating to be bonded.
The prior patent 'construction method and device of thick fireproof paint' (application number CN 201510186105.5) discloses a construction device and method of thick fireproof paint, which adopts artificial control of pouring amount, easily causes waste, has uncontrollable radius, and when the area is large, the temperature deformation of a steel structure can directly reflect cracking on the thick fireproof paint, and is not suitable for being used when being in a special-shaped or square structural formula. The construction method disclosed by the patent is prefabricated in the early stage, the application range is not clear, the construction is inconvenient in large area when meeting, the pasting in the later stage is not firm, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the technical problems of easy cracking, high forming difficulty, material waste, high construction pollution and serious construction period loss in the construction of thick fireproof paint.
The technical scheme adopted by the invention for solving the technical problem is to provide a thick fireproof coating construction device which comprises an integral coating template, wherein the integral coating template is of a circumferentially-expandable cylinder structure, two ends of the integral coating template are open, the integral coating template is circumferentially sealed and locked when being held, the shape of the cylinder structure is matched with the appearance structure of preformed coating on the outer side of a steel structure, a plurality of material openings are formed in the integral coating template at intervals along the length direction, valves are installed in the material openings, and two ends of the integral coating template are provided with baffle plates and sealing strips capable of being matched and sealed with gaskets at the end parts of the fireproof coating.
The integral coating template comprises rigid plates, elastic plates and cohesive sealing strips, the rigid plates are connected through the elastic plates, and the cohesive sealing strips are arranged at cohesive butt joint positions of the integral coating template.
The baffle is arranged on the rigid plate.
The integral coating template is locked by the buckles and the buckles of the buckles in the process of locking.
The chain links of the buckle chain are sequentially provided with marks.
The padlock comprises a bottom plate, two opposite side plates, a buckling plate and a blocking rod, wherein the side plates are fixed on the bottom plate, the buckling plate is in interference fit with the side plates, a through hole for buckling chains is formed in the bottom of the buckling plate, and the blocking rod is fixed between the two side plates and located on the side face of the buckling plate.
The material mouth of one end is connected with annotating the material machine through annotating the material pipe on the whole coating template, and the material mouth of the other end passes through the discharging pipe and is connected with the recycling bin.
The technical scheme adopted by the invention for solving the technical problem is to provide a construction method using the thick fireproof coating construction device, which comprises the following steps:
(1) prefabricating a split type fireproof coating end gasket, a split type fireproof coating middle gasket and a longitudinal gasket: the inner hole of the fireproof coating end gasket and the inner hole of the fireproof coating middle gasket are matched with the circumferential appearance of the steel structure, the width of the fireproof coating end gasket and the width of the fireproof coating middle gasket are matched with the thickness of the preformed coating on the outer side of the steel structure, and the fireproof coating middle gasket is provided with a material leaking hole;
(2) sleeving and fixing the end gaskets of the fireproof coating on two ends of a steel structure according to the length of the integral coating template, sleeving and fixing the middle gaskets of the fireproof coating on the steel structure between the end gaskets of the fireproof coating at intervals, and fixing a longitudinal gasket on the steel structure according to needs;
(3) the method comprises the following steps of (1) coating a hydrophobic release agent on an inner wall diagram of the integral coating template, wrapping the integral coating template on the outer sides of a fireproof coating end gasket, a fireproof coating middle gasket and a longitudinal gasket to enable a baffle and a sealing strip to be attached to the fireproof coating end gasket, locking the integral coating template in an embracing mode and enabling the integral coating template to be sealed in the circumferential direction;
(4) check installation back inerrably, close whole material mouths, connect and annotate material pipe and discharging pipe: when the integral coating template is horizontal, the material port faces upwards, the material injection pipe is connected with the material port at one end, and the material discharge pipe is connected with the material port at the other end; when the integral coating template is not horizontal, connecting the material injection pipe with the material port at the lowest position, and connecting the material discharge pipe with the material port at the highest position;
(5) opening a material port connected with the material injection pipe and the material discharge pipe, filling the fireproof coating into the integral coating template, stopping material injection after the coating is completely filled, and closing the material port;
(6) after the fire-proof coating is preliminarily condensed, opening the material port to serve as a water vapor evaporation port;
(7) and after the fireproof coating reaches the strength, disassembling the integral coating template.
And (3) wrapping steel wire meshes on the outer sides of the fireproof coating end gasket, the fireproof coating middle gasket and the longitudinal gasket according to requirements in the step (2), and wrapping the whole coating template on the outer sides of the steel wire meshes in the step (3).
And (3) performing fireproof coating construction at the special-shaped part of the steel structure by adopting a spraying method, a smearing method or a prefabricating and pasting method according to the forming condition of the fireproof coating.
Advantageous effects
According to the invention, the fireproof coating outside the steel structure is constructed and integrally formed by injecting the fireproof coating into the integral coating template, so that the problems of easy cracking, high forming difficulty, material waste, high construction pollution, serious construction period loss and the like of the thick fireproof coating in the traditional construction mode can be effectively solved, the construction quality of the thick fireproof coating is effectively improved, and the construction efficiency is improved.
Drawings
FIG. 1 is a diagram illustrating the operation of an embodiment of the apparatus of the present invention.
FIG. 2 is a schematic diagram of a front side view of an embodiment of the apparatus of the present invention.
FIG. 3 is a schematic diagram of a rear side view angle structure of an embodiment of the apparatus of the present invention.
FIG. 4 is a schematic front view of an expanded configuration of an embodiment of the apparatus of the present invention.
FIG. 5 is a schematic side view of an expanded configuration of an embodiment of the apparatus of the present invention.
FIG. 6 is a schematic view of a buckle chain according to an embodiment of the present invention.
FIG. 7 is a schematic view of a latch according to an embodiment of the present invention.
FIG. 8 is a schematic view of a fire retardant coating end gasket configuration according to an embodiment of the present invention.
FIG. 9 is a schematic view of a middle gasket structure of the fireproof paint according to the embodiment of the present invention.
FIG. 10 is a schematic view of a longitudinal gasket structure according to an embodiment of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The thick fireproof coating construction device shown in fig. 1-5 comprises an integral coating template 1, wherein the integral coating template 1 is a cylindrical structure capable of being circumferentially expanded, two ends of the cylindrical structure are open, and the shape of the cylindrical structure is matched with the shape structure of the preformed coating on the outer side of the steel structure. The cohesive structure of the integral coating formwork 1 is shown in fig. 2 and 3, and the unfolding structure is shown in fig. 4 and 5.
The integral coating template 1 comprises three arc-shaped rigid plates 1-1, two elastic plates 1-2 and a cohesive sealing strip 1-3, wherein the rigid plates 1-1 are made of steel plates with the thickness of 0.5-1.5 mm, and the elastic plates 1-2 are made of rubber plates with the thickness of 2-5 mm. The three rigid plates 1-1 are connected through two elastic plates 1-2, the elastic plates 1-2 and the rigid plates 1-1 are connected by a hot melting method or glue, and then are reinforced by rivets. The cohesive sealing strips 1-3 are arranged at cohesive butt joint positions of the integral coating template 1 and used for circumferential sealing when the integral coating template 1 is cohered and butted.
Three groups of buckle chains 5 and buckles 6 are correspondingly arranged on two sides of the cohesive butt joint position of the integral coating template 1 respectively, and the integral coating template 1 is locked by the buckles 6 and the buckles 5 when cohesive. As shown in fig. 6, the links of the buckle chain 5 are provided with reference numerals 7 in order. As shown in figure 7, the buckle lock 6 comprises a bottom plate 6-1, two opposite side plates 6-2, a buckle plate 6-3 and a blocking rod 6-4, wherein the side plates 6-2 are fixed on the bottom plate 6-1, the buckle plate 6-3 is inserted into the side plates 6-2 in an interference fit mode, the bottom of the buckle plate 6-3 is provided with a through hole of a buckle chain 5, and the blocking rod 6-4 is fixed between the two side plates and is positioned on the side face of the buckle plate 6-3. When the buckle chain 5 is locked with the buckle lock 6, the buckle chain 5 passes through the through hole and is pressed tightly by the buckle plate 6-3.
The whole coating template 1 is provided with five material ports 2 at even intervals along the length direction, and a valve 8 is arranged in the material port 2 and used for controlling the opening and closing of the material port 2. The two ends of the integral coating template 1 are provided with baffle plates 3, and the baffle plates 3 are inward turning plates formed by the rigid plate 1-1 during molding and form an angle of 90 degrees with the rigid plate 1-1. And sealing strips 4 which can be matched and sealed with the fireproof coating end gaskets 13 are arranged at two ends of the integral coating template 1.
When the thick fireproof coating construction device is used, the material port 2 at one end of the whole coating template 1 is connected with the material injection machine 10 through the material injection pipe 9, and the material port 2 at the other end is connected with the recycling bin 12 through the material discharge pipe 11, as shown in fig. 1.
The following provides a method for performing thick fireproof paint construction by using the thick fireproof paint construction device, which comprises the following steps:
(1) prefabricating a split type fireproof coating end gasket 13, a split type fireproof coating middle gasket 14 and a longitudinal gasket 15: the fireproof coating end gasket 13 and the fireproof coating middle gasket 14 are of semicircular annular splicing structures, the longitudinal gasket 15 is long-strip-shaped, an inner hole of the fireproof coating end gasket 13 and an inner hole of the fireproof coating middle gasket 14 are matched with the circumferential appearance of a steel structure, the width of the fireproof coating end gasket 13 and the width of the fireproof coating middle gasket 14 are matched with the thickness of preformed coating on the outer side of the steel structure, and the fireproof coating middle gasket 14 is provided with a material leakage hole 16;
(2) sleeving and fixing the fireproof coating end gaskets 13 at two ends of a steel structure according to the length of the integral coating template 1, sleeving and fixing the fireproof coating middle gaskets 14 at intervals on the steel structure between the fireproof coating end gaskets 13, and fixing the longitudinal gasket 15 on the steel structure according to the requirement;
(3) the method comprises the following steps of (1) coating a hydrophobic release agent on an inner wall diagram of an integral coating template 1, wrapping the integral coating template 1 on the outer sides of a fireproof coating end gasket 13, a fireproof coating middle gasket 14 and a longitudinal gasket 15 to enable a baffle 3 and a sealing strip 4 to be attached to the fireproof coating end gasket 13, locking the integral coating template 1 in an embracing mode and enabling the integral coating template 1 to be sealed in a circumferential direction;
(4) check installation correct back, close whole material mouthful 2, connect and annotate material pipe 9 and discharging pipe 11: when the integral coating template 1 is horizontal, the material port 2 faces upwards, the material injection pipe 9 is connected with the material port 2 at one end, and the material discharge pipe 11 is connected with the material port 2 at the other end; when the integral coating template 1 is not horizontal, connecting the material injection pipe 9 with the material port 2 at the lowest position, and connecting the material discharge pipe 11 with the material port 2 at the highest position;
(5) opening a material port 2 connected with a material injection pipe 9 and a material discharge pipe 11, filling fireproof coating into the whole coating template 1 layer by layer, enabling the fireproof coating to flow to the next layer through a material leakage hole 16, continuing to inject the material when the fireproof coating flows out of the material discharge pipe 11 in a small amount, indicating that the material injection is finished when the fireproof coating flows out of the material discharge pipe 11 at a constant speed, stopping injecting the coating, closing the material port 2 connected with the material injection pipe 9 and the material discharge pipe 11, and enabling the fireproof coating flowing out of the material discharge pipe 11 to flow into the material discharge pipe 11 of a recovery barrel for recovery;
(6) after the fire-proof coating is preliminarily condensed, opening all the material ports 2 as water vapor evaporation ports;
(7) and after the fireproof coating reaches the strength, the whole coating template 1 is disassembled.
After the whole coating template 1 is disassembled, the whole coating template 1 is cleaned, and a hydrophobic release agent is coated after drying (straightening is carried out when needed) for constructing another steel member.
And (3) wrapping steel wire meshes on the outer sides of the fireproof coating end gasket 13, the fireproof coating middle gasket 14 and the longitudinal gasket 15 according to requirements in the step (2), and wrapping the whole coating template 1 on the outer sides of the steel wire meshes in the step (3).
For the special-shaped part of the steel structure, the fireproof coating construction can be carried out by adopting a spraying method, a smearing method or a prefabricating and pasting method according to the forming condition of the fireproof coating.
For steel members with different shapes, such as a cylinder shape, a square column shape and the like, except for different selected templates and gaskets, the structural principle and the operation method of the device are consistent with the structure and the use method of the device.
Claims (9)
1. A construction method of thick fireproof paint utilizes a construction device of thick fireproof paint, and is characterized in that: thick type fire prevention coating construction equipment includes whole coating template (1), tubular structure and both ends that whole coating template (1) can circumference expand are uncovered, the sealed locking of circumference when whole coating template (1) cohesion, the appearance structure phase-match of tubular structure shape and steel construction outside preforming coating, whole coating template (1) is provided with a plurality of material mouths (2) along the length direction interval, install valve (8) in material mouth (2), whole coating template (1) both ends are equipped with baffle (3) and can cooperate sealed sealing strip (4) with fire prevention coating tip packing ring (13), and the construction method includes following step:
(1) prefabricating a split type fireproof coating end gasket (13), a split type fireproof coating middle gasket (14) and a longitudinal gasket (15): the inner hole of the fireproof paint end gasket (13) and the inner hole of the fireproof paint middle gasket (14) are matched with the circumferential appearance of the steel structure, the width of the fireproof paint end gasket (13) and the width of the fireproof paint middle gasket (14) are matched with the thickness of preformed paint on the outer side of the steel structure, and the fireproof paint middle gasket (14) is provided with a material leaking hole (16);
(2) sleeving and fixing fireproof coating end gaskets (13) at two ends of a steel structure according to the length of the integral coating template (1), sleeving and fixing fireproof coating middle gaskets (14) at intervals on the steel structure between the fireproof coating end gaskets (13), and fixing a longitudinal gasket (15) on the steel structure according to requirements;
(3) coating a hydrophobic release agent on the inner wall of the integral coating template (1), wrapping the integral coating template (1) on the outer sides of a fireproof coating end gasket (13), a fireproof coating middle gasket (14) and a longitudinal gasket (15) to enable a baffle (3) and a sealing strip (4) to be attached to the fireproof coating end gasket (13), locking the integral coating template (1) in a holding manner and sealing the whole coating template in the circumferential direction;
(4) after the inspection and installation are correct, all the material ports (2) are closed, and the material injection pipe (9) and the material discharge pipe (11) are connected: when the integral coating template (1) is horizontal, the material port (2) is upward, the material injection pipe (9) is connected with the material port (2) at one end, and the material discharge pipe (11) is connected with the material port (2) at the other end; when the integral coating template (1) is not horizontal, the material injection pipe (9) is connected with the material port (2) at the lowest position, and the material discharge pipe (11) is connected with the material port (2) at the highest position;
(5) opening a material port (2) connected with a material injection pipe (9) and a material discharge pipe (11), filling fireproof coating into the integral coating template (1), stopping material injection after the coating is completely filled, and closing the material port (2);
(6) after the fire-proof coating is preliminarily condensed, opening the material port (2) as a water vapor evaporation port;
(7) and after the fireproof coating reaches the strength, disassembling the integral coating template (1).
2. The construction method of the thick fireproof paint as claimed in claim 1, wherein: the integral coating template (1) comprises rigid plates (1-1), elastic plates (1-2) and cohesive sealing strips (1-3), the rigid plates (1-1) are connected through the elastic plates (1-2), and the cohesive sealing strips (1-3) are arranged at cohesive butt joint positions of the integral coating template (1).
3. The construction method of the thick fireproof paint as claimed in claim 2, wherein: the baffle (3) is arranged on the rigid plate (1-1).
4. The construction method of the thick fire retardant coating according to claim 1 or 2, characterized in that: the integral coating template (1) is clasped and is correspondingly provided with a plurality of groups of buckles (5) and buckles (6) on two sides of the butt joint position, and the integral coating template (1) is locked by the buckles (6) and the buckles (5) when clasped.
5. The construction method of the thick fireproof paint as claimed in claim 4, wherein: and the chain links of the buckle chain (5) are sequentially provided with a mark (7).
6. The construction method of the thick fireproof paint as claimed in claim 4, wherein: the buckle lock (6) comprises a bottom plate (6-1), two opposite side plates (6-2), a buckle plate (6-3) and a blocking rod (6-4), the side plates (6-2) are fixed on the bottom plate (6-1), the buckle plate (6-3) is inserted into the side plates (6-2) in an interference fit mode, a through hole of a buckle chain (5) is formed in the bottom of the buckle plate (6-3), and the blocking rod (6-4) is fixed between the two side plates and located on the side face of the buckle plate (6-3).
7. The construction method of the thick fireproof paint as claimed in claim 1, wherein: the material inlet (2) at one end of the integral coating template (1) is connected with a material injection machine (10) through a material injection pipe (9), and the material inlet (2) at the other end of the integral coating template is connected with a recovery barrel (12) through a material discharge pipe (11).
8. The construction method of the thick fireproof paint as claimed in claim 1, wherein: and (3) wrapping steel wire meshes outside the fireproof coating end gasket (13), the fireproof coating middle gasket (14) and the longitudinal gasket (15) according to requirements in the step (2), and wrapping the whole coating template (1) outside the steel wire meshes in the step (3).
9. The construction method of the thick fireproof paint as claimed in claim 1, wherein: and (3) performing fireproof coating construction at the special-shaped part of the steel structure by adopting a spraying method, a smearing method or a prefabricating and pasting method according to the forming condition of the fireproof coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811578695.6A CN109723205B (en) | 2018-12-24 | 2018-12-24 | Thick fireproof coating construction device and construction method thereof |
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| CN201811578695.6A CN109723205B (en) | 2018-12-24 | 2018-12-24 | Thick fireproof coating construction device and construction method thereof |
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| CN109723205B true CN109723205B (en) | 2021-01-01 |
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| CN111617947A (en) * | 2020-06-13 | 2020-09-04 | 中国化学工程第十一建设有限公司 | Construction method of thick-paste steel structure fireproof coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0110840A1 (en) * | 1982-11-22 | 1984-06-13 | Errenovex G.M. Ramilli | Equipment for plumbing the shim guides for plastering walls, ceilings and the like |
| CN1195059A (en) * | 1997-03-28 | 1998-10-07 | 欣华营造工程有限公司 | Steel pile prevention encasing system construction method |
| CN1727161A (en) * | 2004-07-28 | 2006-02-01 | 邱则有 | Cylindrical die in use for molding component of concrete filled double thin wall |
| CN204676844U (en) * | 2015-04-17 | 2015-09-30 | 江苏省建筑设计研究院有限公司 | Thicker fireproof paint construction equipment |
| CN207700687U (en) * | 2017-12-29 | 2018-08-07 | 长沙紫宸科技开发有限公司 | Reinforced concrete structure column protectiveness Flexible formwork assembly |
-
2018
- 2018-12-24 CN CN201811578695.6A patent/CN109723205B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0110840A1 (en) * | 1982-11-22 | 1984-06-13 | Errenovex G.M. Ramilli | Equipment for plumbing the shim guides for plastering walls, ceilings and the like |
| CN1195059A (en) * | 1997-03-28 | 1998-10-07 | 欣华营造工程有限公司 | Steel pile prevention encasing system construction method |
| CN1727161A (en) * | 2004-07-28 | 2006-02-01 | 邱则有 | Cylindrical die in use for molding component of concrete filled double thin wall |
| CN204676844U (en) * | 2015-04-17 | 2015-09-30 | 江苏省建筑设计研究院有限公司 | Thicker fireproof paint construction equipment |
| CN207700687U (en) * | 2017-12-29 | 2018-08-07 | 长沙紫宸科技开发有限公司 | Reinforced concrete structure column protectiveness Flexible formwork assembly |
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