Filling type autoclaved aerated concrete A-grade fireproof plate and processing technology

Abstract

The filling type autoclaved aerated concrete A-level fireproof plate comprises an autoclaved aerated plate and a reinforcement cage assembly embedded in the autoclaved aerated plate, and the reinforcement cage assembly comprises two reinforcing meshes arranged side by side and a foam glass heat preservation plate located between the two reinforcing meshes. A plurality of reinforcing mesh connecting pieces are connected to the edges of the two reinforcing meshes, each reinforcing mesh connecting piece comprises a connecting strip and outer clamping plates fixedly connected to the two ends of the connecting strip, clamping grooves attached to the outer sides of the reinforcing meshes are formed in the inner sides of the outer clamping plates, elastic pieces attached to the inner sides of the reinforcing meshes are fixedly connected to the connecting strips, and positioning holes are formed in the middles of the connecting strips. The thermal insulation board is high in thermal insulation performance and good in fireproof performance, the A-level fireproof requirement can be met, the thermal insulation board and the autoclaved aerated board are closely fused, not prone to separation, high in connection strength and light in weight, the reinforcing mesh and the thermal insulation board are fixed in advance in the machining process, position deviation of the reinforcing mesh and the thermal insulation board is prevented, and therefore the performance of a final finished product is improved.

Description

Technical Field

[0001] The invention relates to the field of composite wall panels, in particular to a filled autoclaved aerated concrete Class A fireproof panel and a processing technology thereof. Background Art

[0002] Aerated concrete is a lightweight porous silicate product made of siliceous materials (sand, fly ash and silicon-containing tailings, etc.) and calcareous materials (lime, cement) as the main raw materials, mixed with gas-generating agent (aluminum powder), and made through the process of batching, mixing, pouring, pre-curing, cutting, autoclaving, curing, etc. It is called aerated concrete because it contains a large number of uniform and fine pores after gasification.

[0003] Aerated concrete wallboard is a new type of wall building material. Its uniqueness lies in that it is a very light thermal insulation building wall material. Aerated concrete blocks are mostly used in construction projects in the form of prefabricated products. They can be used to build load-bearing walls of houses with three or fewer floors, and can also be used as non-load-bearing filling wall materials for industrial plants, multi-story and high-rise frame structures.

[0004] In order to improve the thermal insulation performance and strength of aerated concrete wall panels, insulation boards and steel meshes are generally embedded inside. Currently, the thermal insulation performance of the insulation boards is average. In addition, during the processing, the insulation boards and steel meshes are prone to move, thus affecting the final performance of the finished product. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a filled autoclaved aerated concrete Class A fireproof board and a processing technology.

[0006] The present invention is achieved through the following technical scheme, which provides a filled autoclaved aerated concrete Class A fireproof board, including an autoclaved aerated board and a steel cage assembly embedded in the autoclaved aerated board, wherein the steel cage assembly includes two side-by-side steel meshes and an insulation board located between the two steel meshes, and the edges of the two steel meshes are connected with a plurality of steel mesh connectors, wherein the steel mesh connectors include a connecting strip and an outer clamping plate fixedly connected to both ends of the connecting strip, wherein a clamping groove that fits with the outer side of the steel mesh is provided on the inner side of the outer clamping plate, an elastic sheet that fits with the inner side of the steel mesh is fixedly connected to the connecting strip, and a positioning hole is opened in the middle of the connecting strip.

[0007] As an optimization, the steel cage assembly also includes multiple insulation board positioning mechanisms, which include a screw rod passing through the insulation board and two nuts connected to the screw rod, the insulation board is clamped between the two nuts, and a slot is opened at the end of the screw rod to clamp on the steel mesh.

[0008] As an optimization, a positioning gasket is installed between the nut and the insulation board.

[0009] As an optimization, the steel cage assembly also includes multiple tensioning mechanisms, which include a sleeve that passes through the insulation board and two steel meshes, one end of the sleeve is fixedly connected to the tensioning plate, and the other end of the sleeve is threadedly connected to a bolt, and the two steel meshes are clamped between the tensioning plate and the bolt.

[0010] As an optimization, a tensioning gasket is installed between the bolt and the steel mesh.

[0011] As an optimization, positioning grooves and positioning protrusions are respectively provided on the two long sides of the autoclaved aerated plate.

[0012] As an optimization, the elastic sheet is a U-shaped elastic sheet and one end of the elastic sheet is fixedly connected to the connecting strip.

[0013] As an optimization, a middle positioning block is fixedly connected to the middle of the connecting strip, and the positioning hole is arranged on the middle positioning block.

[0014] As an optimization, the positioning hole passes through the side surface of the middle positioning block.

[0015] A processing technology for filling autoclaved aerated concrete Class A fireproof board, comprising the following steps: a. Fabrication of steel cage assembly: place the insulation board and two steel meshes side by side, install steel mesh connectors on the upper and lower edges of the steel meshes, clamp the steel bars of the steel meshes with the outer clamping plate and the elastic sheet at the end of the steel mesh connector to achieve positioning between the two steel meshes, pass the screw through the insulation board, and clamp the clamping groove at the end of the screw on the steel mesh, clamp the insulation board with the two nuts on the screw to achieve positioning between the steel mesh and the insulation board, pass the sleeve through the insulation board and the two steel meshes, clamp the two steel meshes between the tensioning plate and the bolt of the sleeve, and achieve clamping of the two steel meshes; b. Casting and pre-curing: Place multiple steel cage assemblies side by side in the mold box, insert the positioning rod into the positioning hole of the steel mesh connector to achieve the positioning of the steel cage assembly, pour the mixed slurry into the mold box until it completely covers the steel cage assembly, let it stand for 2-8 hours to harden into an integral semi-finished product, and pull out the positioning rod after standing for 10-50 minutes; c. Demolding: Open the movable side wall on one side of the mold box, fit the movable support plate to the side of the whole semi-finished product, rotate the movable support plate and the mold box together by 90 degrees, make the movable support plate horizontal, and transfer the whole semi-finished product to the movable support plate; d. Cutting: The mobile support plate drives the whole semi-finished product to move, and passes through a plurality of horizontal cutting wires arranged up and down, and cuts the whole semi-finished product into a plurality of fireproof board semi-finished products arranged up and down. When the whole semi-finished product moves, it passes through the positioning groove scrapers and positioning protrusion scrapers on both sides, so as to scrape out positioning grooves and positioning protrusions on the two long sides of the fireproof board semi-finished product respectively; e. Autoclave curing: The semi-finished fireproof board is sent into the autoclave for autoclave curing.

[0016] The beneficial effects of the present invention are: a filled autoclaved aerated concrete Class A fireproof board and a processing technology of the present invention, the insulation board of the present invention has high thermal insulation performance and good fireproof performance, can meet the requirements of Class A fireproofing, and during the processing, the steel mesh and the insulation board are pre-fixed to prevent their position from shifting, thereby improving the performance of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is an internal front view of the present invention; Figure 3 It is an internal side view of the present invention; Figure 4 It is a schematic diagram of the structure of the steel cage assembly of the present invention; Figure 5 It is a front view of the steel cage assembly of the present invention; Figure 6 A top view of a steel cage assembly of the present invention; Figure 7 It is a side view of the steel cage assembly of the present invention; Figure 8 For the present invention Figure 5 Sectional view of the middle AA plane; Fig. 9 This is a schematic diagram of the structure of the steel mesh connector of the present invention; Fig.10 It is a front view of the steel mesh connector of the present invention; Fig.11 For the present invention Figure 5 Middle BB plane section view; Fig.12 For the present invention Figure 5 Middle CC section view; Fig.13 It is a schematic diagram of the processing of the present invention when it is at rest; Fig.14 It is a schematic diagram of the present invention when the processing process is transferred to the moving support plate; Fig.15 It is a schematic diagram of the processing process of the present invention after being transferred to the moving support plate; Fig.16 It is a cutting schematic diagram of the processing process of the present invention; Fig.17 It is a schematic diagram of the forming of the positioning protrusion and the positioning groove during the processing of the present invention; As shown in the figure: 1. Autoclaved aerated board, 2. Steel mesh, 3. Steel mesh connector, 31. Connecting strip, 32. External clamp, 33. Elastic sheet, 34. Middle positioning block, 35. Positioning hole, 4. Insulation board positioning mechanism, 41. Screw, 42. Positioning gasket, 43. Nut, 5. Tensioning mechanism, 51. Tensioning plate, 52. Sleeve, 53. Tensioning gasket, 54. Bolt, 6. Insulation board, 7. Mold box, 8. Movable side wall, 9. Movable support plate, 10. Cutting wire, 11. Positioning groove, 12. Positioning protrusion, 13. Positioning groove scraper, 14. Scraper groove, 15. Positioning protrusion scraper. DETAILED DESCRIPTION

[0018] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0019] like Figures 1 to 17 As shown, a filled autoclaved aerated concrete Class A fireproof board of the present invention comprises an autoclaved aerated board 1 and a steel cage assembly embedded in the autoclaved aerated board 1, such as Figure 2 , 3 As shown, the steel cage assembly is uniformly embedded in the autoclaved aerated board 1 , so that the six sides of the steel cage assembly are all wrapped by the autoclaved aerated board 1 .

[0020] like Figure 1 As shown, the two long sides of the autoclaved aerated board 1 are respectively provided with positioning grooves 11 and positioning protrusions 12. The positioning grooves 11 and positioning protrusions 12 both extend along the length direction of the long sides, and have the same length as the long sides. The positioning grooves 11 and positioning protrusions 12 are both located in the middle of the thickness direction of the autoclaved aerated board 1, so that when two fireproof boards are butt-jointed, the positioning grooves 11 of the long sides are inserted into the positioning protrusions 12 of the other fireproof board to prevent the two from being misaligned.

[0021] The steel cage assembly includes two side-by-side steel meshes 2 and an insulation board 6 located between the two steel meshes 2. The steel mesh 2 is a rectangular mesh structure formed by connecting transverse steel bars and vertical steel bars. The insulation board 6 is located between the two steel meshes 2 and has an equal spacing with the steel meshes 2 on both sides. The insulation board 6 is made of foam glass insulation board. The insulation board and the autoclaved aerated board are tightly fused and not easy to separate. The connection strength is high and the weight is light.

[0022] In order to fix the distance between the two steel meshes 2, multiple steel mesh connectors 3 are connected to the edges of the two steel meshes 2. In this embodiment, the upper and lower edges of the steel meshes 2 are each connected to multiple steel mesh connectors 3, and the steel mesh connectors 3 are evenly distributed on the upper and lower edges.

[0023] like Figure 8-10As shown, the steel mesh connector 3 is a plastic part, which includes a connecting strip 31 and outer clamping plates 32 fixed at both ends of the connecting strip 31. The length direction of the connecting strip 31 is consistent with the thickness direction of the autoclaved aerated board 1, so the two ends of the connecting strip 31 are respectively connected to two steel meshes 2.

[0024] The outer clamping plate 32 is located on the side of the connecting strip 31 close to the steel mesh 2, and the steel mesh is located between the two outer clamping plates 32. The inner side of the outer clamping plate 32 is provided with a clamping groove that fits with the outer side of the steel mesh 2. The clamping groove is an arc groove and fits with the outer cylindrical surface of the transverse steel bars of the steel mesh 2. When the steel mesh connector 3 is installed, the two steel meshes and the two outer clamping plates 32 are deformed, so that the transverse steel bars of the steel mesh enter the clamping groove.

[0025] In order to prevent the transverse steel bar from falling out of the slot, an elastic sheet 33 is fixed to the connecting strip 31 and is attached to the inner side of the steel mesh 2. The elastic sheet 33 is a U-shaped spring sheet and one end is fixed to the connecting strip 31. The transverse steel bar is clamped between the other end of the U-shaped spring sheet and the slot to prevent it from falling out.

[0026] The middle of the connecting strip 31 is fixed with an intermediate positioning block 34, and the positioning hole 35 is provided on the intermediate positioning block 34. The positioning rod can be inserted into the positioning hole 35 of the steel mesh connector 3 to achieve its positioning and prevent the entire steel cage assembly from moving.

[0027] The positioning hole 35 in this embodiment passes through the side of the middle positioning block 34. Fig. 9 As shown, that is, the top view of the positioning hole 35 is U-shaped, so that the positioning rod can be a hook-shaped structure, which hooks the middle of the connecting strip 31 from the side of the positioning hole 35. While achieving positioning, the steel mesh connector 3 can be lifted, thereby achieving the lifting of the entire steel cage assembly, so that the steel cage assembly is maintained at a suitable height position in the mold box.

[0028] like Fig.12 As shown, in order to keep the insulation board and the steel mesh at a suitable distance, the steel cage assembly further includes a plurality of insulation board positioning mechanisms 4, the insulation board positioning mechanisms 4 including a screw rod 41 passing through the insulation board 6 and two nuts 43 connected to the screw rod 41, and a slot clamped on the steel mesh 2 is provided at the end of the screw rod 41. The slot is a countersunk hole provided at the end of the screw rod 41, and the bottom spacing of the two countersunk holes is equal to the inner spacing of the two steel meshes 2, so when the two steel meshes are fixed, the screw rod 41 is also fixed, thereby playing a role in fixing and tying the two steel meshes.

[0029] The insulation board 6 is clamped between two nuts 43 , and a positioning gasket 42 is installed between the nuts 43 and the insulation board 6 , so as to fix the insulation board 6 .

[0030] like Fig.11As shown, the steel cage assembly also includes a plurality of tensioning mechanisms 5, and the tensioning mechanism 5 includes a sleeve 52 passing through the insulation board 6 and the two steel meshes 2, one end of the sleeve 52 is fixedly connected to a tensioning plate 51, and the other end of the sleeve 52 is threadedly connected to a bolt 54, and the two steel meshes 2 are clamped between the tensioning plate 51 and the bolt 54. A tensioning gasket 53 is installed between the bolt 54 and the steel mesh 2. At the same time, the tensioning mechanism 5 can also realize the fixation of the fireproof board during installation. When the fireproof board is installed, the installation plate can be installed at the position of the tensioning gasket 53, and the installation and fixation of the fireproof board can be realized by fixing the installation plate.

[0031] A processing technology for filling autoclaved aerated concrete Class A fireproof board, comprising the following steps: a. Fabrication of steel cage assembly: The insulation board 6 and two steel meshes 2 are arranged side by side, and the steel mesh connector 3 is installed on the upper and lower edges of the steel mesh 2. The outer clamping plate 32 and the elastic sheet 33 at the end of the steel mesh connector 3 clamp the steel bars of the steel mesh 2 to achieve positioning between the two steel meshes 2. The screw 41 is passed through the insulation board 6, and the clamping groove at the end of the screw 41 is clamped on the steel mesh 2. The insulation board 6 is clamped by two nuts on the screw 41 to achieve positioning between the steel mesh 2 and the insulation board 6. The sleeve 52 is passed through the insulation board 6 and the two steel meshes 2, so that the two steel meshes 2 are clamped between the tensioning plate 51 of the sleeve 52 and the bolt 54 to achieve clamping of the two steel meshes 2; b. Casting and pre-curing: Place multiple steel cage assemblies side by side in the mold box 7, insert the positioning rod into the positioning hole 35 of the steel mesh connector 3 to achieve the positioning of the steel cage assembly, pour the mixed slurry into the mold box 7 until the steel cage assembly is completely covered, let it stand for 2-8 hours, and harden into an integral semi-finished product. Pull out the positioning rod after standing for 10-50 minutes; c. Demolding: open the movable side wall 8 on one side of the mold box 7, fit the movable support plate 9 to the side of the integral semi-finished product, rotate the movable support plate 9 and the mold box 7 together by 90 degrees, make the movable support plate 9 horizontal, and transfer the integral semi-finished product to the movable support plate 9; d. Cutting: The mobile support plate 9 drives the whole semi-finished product to move, and passes through a plurality of horizontal cutting wires 10 arranged up and down, and cuts the whole semi-finished product into a plurality of fireproof board semi-finished products arranged up and down. When the whole semi-finished product moves, it passes through the positioning groove scrapers 13 and the positioning protrusion scrapers 15 on both sides, so as to scrape out the positioning grooves 11 and the positioning protrusions 12 on the two long sides of the fireproof board semi-finished product respectively; e. Autoclave curing: The semi-finished fireproof board is sent into the autoclave for autoclave curing.

[0032] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A filled autoclaved aerated concrete Class A fireproof board, characterized by: The invention comprises an autoclaved aerated plate (1) and a steel cage assembly embedded in the autoclaved aerated plate (1), wherein the steel cage assembly comprises two side-by-side steel meshes (2) and a heat-insulating plate (6) located between the two steel meshes (2), the edges of the two steel meshes (2) are connected with a plurality of steel mesh connectors (3), the steel mesh connectors (3) comprising a connecting strip (31) and outer clamping plates (32) fixedly connected to both ends of the connecting strip (31), the inner side of the outer clamping plates (32) being provided with a clamping groove fitted with the outer side of the steel meshes (2), the connecting strip (31) being fixed with an elastic sheet (33) fitted with the inner side of the steel meshes (2), and the middle part of the connecting strip (31) being provided with a positioning hole (35).

2. A filled autoclaved aerated concrete Class A fireproof board according to claim 1, characterized in that: The steel cage assembly further comprises a plurality of insulation board positioning mechanisms (4), the insulation board positioning mechanisms (4) comprising a screw rod (41) passing through the insulation board (6) and two nuts (43) connected to the screw rod (41), the insulation board (6) being clamped between the two nuts (43), and a slot for clamping on the steel mesh (2) being formed at the end of the screw rod (41).

3. A filled autoclaved aerated concrete Class A fireproof board according to claim 2, characterized in that: A positioning gasket (42) is installed between the nut (43) and the insulation plate (6).

4. A filled autoclaved aerated concrete Class A fireproof board according to claim 2, characterized in that: The steel cage assembly further comprises a plurality of tensioning mechanisms (5), wherein the tensioning mechanisms (5) comprise a sleeve (52) passing through the insulation board (6) and the two steel meshes (2), one end of the sleeve (52) being fixedly connected to a tensioning plate (51), the other end of the sleeve (52) being threadedly connected to a bolt (54), and the two steel meshes (2) being clamped between the tensioning plate (51) and the bolt (54).

5. A filled autoclaved aerated concrete Class A fireproof board according to claim 4, characterized in that: A tensioning gasket (53) is arranged between the bolt (54) and the steel mesh (2).

6. A filled autoclaved aerated concrete Class A fireproof board according to claim 4, characterized in that: The two long sides of the autoclaved aerated plate (1) are respectively provided with a positioning groove (11) and a positioning protrusion (12).

7. The filled autoclaved aerated concrete Class A fireproof board according to claim 1, characterized in that: The elastic sheet (33) is a U-shaped elastic sheet and one end of the elastic sheet is fixedly connected to the connecting strip (31).

8. The filled autoclaved aerated concrete Class A fireproof board according to claim 1, characterized in that: A middle positioning block (34) is fixedly connected to the middle of the connecting strip (31), and the positioning hole (35) is arranged on the middle positioning block (34).

9. The filled autoclaved aerated concrete Class A fireproof board according to claim 1, characterized in that: The positioning hole (35) passes through the side surface of the middle positioning block (34).

10. A processing technology for the filled autoclaved aerated concrete Class A fireproof board according to claim 6, characterized in that: The steps include: a. Fabrication of a steel cage assembly: a heat preservation plate (6) and two steel meshes (2) are arranged side by side, a steel mesh connector (3) is installed at the upper and lower edges of the steel meshes (2), an outer clamping plate (32) and an elastic sheet (33) at the end of the steel mesh connector (3) clamp the steel bars of the steel meshes (2) to achieve positioning between the two steel meshes (2), a screw rod (41) is passed through the heat preservation plate (6), and a clamping groove at the end of the screw rod (41) is clamped on the steel meshes (2), the heat preservation plate (6) is clamped by two nuts on the screw rod (41), and positioning between the steel meshes (2) and the heat preservation plate (6) is achieved, a sleeve (52) is passed through the heat preservation plate (6) and the two steel meshes (2), and the two steel meshes (2) are clamped between the tensioning plate (51) and the bolt (54) of the sleeve (52), and the two steel meshes (2) are clamped; b. Casting and pre-curing: multiple steel cage assemblies are placed side by side in a mold box (7), and the positioning rods are inserted into the positioning holes (35) of the steel mesh connector (3) to achieve the positioning of the steel cage assemblies. The mixed slurry is poured into the mold box (7) until the steel cage assemblies are completely covered, and the mixture is left to stand for 2-8 hours to harden into an integral semi-finished product. After standing for 10-50 minutes, the positioning rods are pulled out; c. Demolding: opening the movable side wall (8) on one side of the mold box (7), attaching the movable support plate (9) to the side of the integral semi-finished product, rotating the movable support plate (9) and the mold box (7) together by 90 degrees, making the movable support plate (9) horizontal, and transferring the integral semi-finished product onto the movable support plate (9); d. Cutting: The mobile support plate (9) drives the whole semi-finished product to move, and passes through a plurality of horizontal cutting wires (10) arranged vertically, so as to cut the whole semi-finished product into a plurality of fireproof board semi-finished products arranged vertically. When the whole semi-finished product moves, it passes through the positioning groove scrapers (13) and the positioning protrusion scrapers (15) on both sides, thereby scraping out positioning grooves (11) and positioning protrusions (12) on the two long sides of the fireproof board semi-finished product respectively; e. Autoclave curing: The semi-finished fireproof board is sent into the autoclave for autoclave curing.

Images