Shaped steel mould device of double-curved-surface sedimentation tank and construction method of shaped steel mould device

Abstract

The invention discloses a shaped steel mold device of a double-curved-surface sedimentation tank and a construction method of the shaped steel mold device, and relates to the technical field of building construction. The device comprises a first shaping steel mold, a column mold, a third shaping steel mold and a fourth shaping steel mold. The first shaping steel mold is located at the wall corner of the pool wall and connected with the pool wall through bolts. The column mold is positioned in the center and is connected by upper and lower steel pipe column flanges; the third shaping steel mold comprises a bailey beam, a scraper blade and the like, is connected with the column mold through an angle adjusting plate and is reinforced by an adjustable pull rod; and the finalization steel mold IV is in an inverted truncated cone shape and is positioned in the center of the pool bottom. The construction method comprises the steps of lofting, base layer treatment, formwork installation, staged pouring, maintenance and formwork removal according to a specific sequence. According to the device and method, the hyperboloid forming precision is improved, the stability is enhanced, the construction efficiency is improved, the quality safety is guaranteed, and the steel die can be repeatedly used.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a standardized steel mold device for a hyperbolic sedimentation tank and a construction method thereof. Background Art

[0002] At present, most of the pool walls in industrial final sedimentation tanks are of special-shaped cross-section dimensions, with the pool bottom being an arc surface and the pool wall being composed of an inverted cone arc and a wall surface (such as Figure 1 As shown in the figure, the construction of the hyperbolic sedimentation tank formed by the arc surface of the bottom and the arc surface of the wall of the sedimentation tank is relatively difficult. The traditional wooden formwork matching and reinforcement or brick membrane construction is labor-intensive and wastes a lot of materials. The construction period is also relatively long, the quality cannot be guaranteed, and the on-site civilized construction during the construction process is also poor. There are great limitations in terms of both environmental protection and economy. The slope of the hyperbolic surface of the sedimentation tank tilting towards the central mud collection pit must be precise to ensure that the sludge can slide smoothly to the center. Insufficient slope will cause mud accumulation. Minor deviations may lead to unstable equipment operation, scraper obstruction, or even damage to the equipment. Summary of the Invention

[0003] The object of the present invention is to provide a standardized steel mold device for a hyperbolic sedimentation tank and a construction method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a shaping steel mold device for a hyperbolic sedimentation tank, comprising a shaping steel mold 1, a column mold, a shaping steel mold 3, and a shaping steel mold 4;

[0005] The standardized steel formwork is connected and fixed to the concrete pool wall by bolts and is located at the corner of the sedimentation tank wall;

[0006] The column mold is located in the center of the hyperbolic sedimentation tank. The column mold is connected by a lower steel pipe column and an upper steel pipe column through a flange. The upper steel pipe column is driven by a motor above the sedimentation tank, and an angle adjustment plate is installed on the lower steel pipe column.

[0007] The third standardized steel formwork mainly consists of a Bailey beam, a scraper, an adjustable tie rod, and an angle adjustment plate. The scraper is fixed to the bottom of the Bailey beam, and the angle adjustment plate and the adjustable tie rod are fixed to both ends of the Bailey beam respectively. The third standardized steel formwork is connected to the column formwork through the angle adjustment plate and reinforced by the adjustable tie rod.

[0008] The finalized steel mold 4 is in the shape of an inverted truncated cone and is located at the center of the bottom of the sedimentation tank.

[0009] Preferably, the standardized steel template is composed of a vertical curved template and a horizontal curved template made of 4mm thick steel plate using a laser cutter and welded together.

[0010] Preferably, the lower steel pipe column is a steel pipe column with a diameter of 100 mm, and the upper steel pipe column is a steel pipe column with a diameter of 60 mm.

[0011] Preferably, the standardized steel mold 3 is welded with a 4mm thick steel plate scraper and a 40mm*60mm*3mm square tube Bailey beam structure, and the adjustable pull rod is composed of a basket screw tensioner and a pull rod.

[0012] Preferably, the shaped steel mold is formed by welding 4mm thick steel plates and steel keels to form an inverted truncated cone shape.

[0013] The construction method of the standardized steel mold device of the hyperbolic sedimentation tank comprises the following steps:

[0014] S1: Before construction, familiarize yourself with the drawings, conduct in-depth design of the construction drawings, and design the template blocks and support system in detail. After the main pool has passed the acceptance inspection, the position and elevation of the circular curved surface of the sedimentation tank bottom and the curved surface of the pool wall are set out according to the drawing requirements;

[0015] S2: Perform simple roughening treatment on the base of the main pool wall and the joints of the new and old concrete of the secondary backfill;

[0016] S3: According to the position of the positioned column form, install and fix the column form in the center of the sedimentation tank;

[0017] S4: Fix the finalized steel mold 3 to the angle adjustment plate 1 of the column mold through the bolts on the angle adjustment plate 2;

[0018] S5: Reinforce and connect the standardized steel formwork to the pool wall concrete with bolts;

[0019] S6: After the above steps are accepted, the first concrete pouring can be started. When the concrete is poured to the bottom of the first standardized formwork and the top of the fourth standardized formwork, the bottom plate curved surface concrete can be quickly finished using the scraper on the standardized formwork.

[0020] S7: After the first bottom slab curved surface concrete has finally set, the second pool wall slope angle concrete pouring can be carried out, and the pool wall curved surface finishing is carried out according to the standardized template;

[0021] S8: Curing shall be carried out promptly after the concrete pouring is completed;

[0022] S9: When dismantling the formwork device, dismantle in sequence from the standardized steel formwork 1, standardized steel formwork 3, standardized steel formwork 4, and column formwork.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Improve the forming accuracy of hyperbolic surfaces

[0025] The first standardized steel mold adopts a laser-cut curved template to accurately match the corners and curved surfaces of the pool wall; the scraper of the third standardized steel mold can quickly retract the surface to complete the curved surface shape of the pool bottom; the inverted truncated cone design of the fourth standardized steel mold ensures the accuracy of the central curved surface of the pool bottom, and overall improves the accuracy of the hyperbolic structure construction.

[0026] 2. Improve construction efficiency

[0027] The steel formwork is a standardized design and can be prefabricated and assembled to reduce on-site processing time; the construction steps are clear, and the formwork installation, pouring and finishing processes are coherent. The scraper and standardized steel formwork help to quickly finish the surface and shorten the operation time.

[0028] 3. Convenient for reuse and cost reduction

[0029] The steel mold components are detachably connected by bolts, flanges, etc., which makes them easy to disassemble and reuse. The angle adjustment structure can adapt to a certain range of size requirements and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a top view of the hyperbolic sedimentation tank;

[0031] Figure 2 Schematic diagram of the overall structure of the standardized steel mold device of the hyperbolic sedimentation tank in the present invention;

[0032] Figure 3 Schematic diagram of the column mold structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the three structures of the standardized steel mold;

[0034] Figure 5 This is a schematic diagram of the four structures of the standardized steel mold.

[0035] In the figure: 1. Standardized steel formwork 1; 2. Column formwork; 3. Standardized steel formwork 3; 4. Standardized steel formwork 4; 101. Vertical curved formwork; 102. Horizontal curved formwork; 201. Lower steel pipe column; 202. Upper steel pipe column; 203. Flange; 204. Angle adjustment plate 1; 205. Motor; 301. Bailey beam; 302. Scraper; 303. Adjustment rod; 3031. Basket screw tensioner; 3032. Rod; 304. Angle connecting plate 2; 401. Steel plate; 402. Steel keel. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] like Figure 2 A shaping steel mold device for a hyperbolic sedimentation tank includes a shaping steel mold 1, a column mold 2, a shaping steel mold 3, and a shaping steel mold 4. The specific structure is as follows:

[0038] The assembly and installation of the standardized steel mold 1, such as Figure 2 Indicated in the middle.

[0039] The standardized steel formwork 1 is made of 4mm thick steel plate, laser-cut into a custom-made vertical curved formwork 101 and a horizontal curved formwork 102, which are then welded together. During construction, these are bolted to the concrete wall, precisely positioned at the corners of the sedimentation tank wall to ensure a consistent fit with the curved surface.

[0040] The assembly and fixation of column form 2, such as Figure 1 Indicated in the middle.

[0041] Column formwork 2 consists of a lower steel pipe column 201 (100 mm in diameter) and an upper steel pipe column 202 (60 mm in diameter), connected by flange 203. An angle adjustment plate 204 is installed on lower steel pipe column 201. Upper steel pipe column 202 is connected to a motor 205 above the sedimentation tank, which drives its rotation. Once assembled, column formwork 2 is fixed to the center of the hyperbolic sedimentation tank.

[0042] The assembly and installation of the standardized steel mold 3, such as Figure 4 Indicated in the middle.

[0043] The Bailey beam 301 of the finalized steel formwork 3 is a 40mm x 60mm x 3mm square tube. A scraper 302 made of 4mm thick steel plate is fixed to its base. Angle adjustment plates 2 304 and adjustable tie rods 303, consisting of turnbuckle tensioners 3031 and tie rods 3032, are welded to each end. Bolting the angle adjustment plates 1 204 and 2 304 secures the finalized steel formwork 3 3 to the column formwork 2. Adjustable tie rods 303 further reinforce the structure to ensure stability.

[0044] The installation of the standardized steel mold 4, such as Figure 5 Indicated in the middle.

[0045] The standardized steel mold 4 is welded into an inverted truncated cone shape by a 4mm thick steel plate 401 and a steel keel 402, and is directly placed at the center of the bottom of the sedimentation tank to serve as a basic template for forming the bottom curved surface.

[0046] The construction process of the standardized steel formwork device for the upper hyperbolic sedimentation tank is as follows:

[0047] Preliminary preparation

[0048] Before construction, familiarize yourself with the design drawings, deepen the design of the formwork block and support system, and after the main pool has passed the inspection, accurately stake out the position and elevation of the curved surface of the pool bottom and the curved surface of the pool wall according to the drawing requirements. At the same time, roughen the base of the main pool wall and the joints between the new and old concrete to enhance the bonding strength of the concrete.

[0049] Template Installation

[0050] First, fix the assembled column mold 2 in the center of the sedimentation tank;

[0051] Then connect and reinforce the shaped steel mold 3 and the column mold 2 through the angle adjustment plate;

[0052] Finally, fix the finalized steel formwork 1 to the pool wall concrete with bolts to complete the installation of the formwork.

[0053] Concrete pouring and finishing

[0054] First pouring: After acceptance, pour concrete to the bottom of the standardized steel form 1 and the top of the standardized steel form 4, and use the scraper 302 at the bottom of the standardized steel form 3 to quickly finish the bottom plate curved surface concrete;

[0055] Second pouring: After the first concrete has finally set, pour the slope angle concrete of the pool wall, and finish the pool wall surface according to the curved surface shape of the standardized steel formwork 1.

[0056] Maintenance and demolding

[0057] After concrete pouring, perform curing promptly to ensure that the strength meets the standards. When removing the formwork, proceed in this order: first remove the finalized steel formwork 1, then the finalized steel formwork 3, then the finalized steel formwork 4, and finally the column formwork 2 to avoid damage to the formed structure.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A shaping steel mold device for a hyperbolic sedimentation tank, comprising a shaping steel mold 1 (1), a column mold (2), a shaping steel mold 3 (3) and a shaping steel mold 4 (4), characterized in that: The standardized steel formwork (1) is connected and fixed to the concrete pool wall by bolts and is located at the corner of the sedimentation tank wall; The column mold (2) is located at the center of the hyperbolic sedimentation tank. The column mold (2) is connected by a lower steel pipe column (201) and an upper steel pipe column (202) through a flange (203). The upper steel pipe column (202) is driven by a motor (205) above the sedimentation tank. An angle adjustment plate (204) is installed on the lower steel pipe column (201). The third shaping steel mold (3) is mainly composed of a Bailey beam (301), a scraper (302), an adjustable pull rod (303) and an angle adjustment plate (304). The scraper (302) is fixed to the bottom of the Bailey beam (301). The angle adjustment plate (304) and the adjustable pull rod (303) are respectively fixed to the two ends of the Bailey beam (301). The third shaping steel mold (3) is connected by the angle adjustment plate 1 (204), the angle adjustment plate 2 (304) and the column mold (2), and is reinforced by the adjustable pull rod (303). The finalized steel mold four (4) is in the shape of an inverted truncated cone and is located at the center of the bottom of the sedimentation tank.

2. The device for shaping a hyperbolic sedimentation tank according to claim 1, characterized in that: The standardized steel template 1 (1) is composed of a vertical curved template (101) and a horizontal curved template (102) made of 4mm thick steel plates using a laser cutter and welded together.

3. The steel mold device for shaping a hyperbolic sedimentation tank according to claim 2, characterized in that: The lower steel pipe column (201) is a steel pipe column with a diameter of 100 mm, and the upper steel pipe column (202) is a steel pipe column with a diameter of 60 mm.

4. The standardized steel mold device for the hyperbolic sedimentation tank according to claim 3, characterized in that: The standardized steel mold three (3) is made of a 4mm thick steel plate scraper (302) welded with a 40mm*60mm*3mm square tube Bailey beam (301) structure, and the adjustable pull rod (303) is composed of a basket screw tensioner (3031) and a pull rod (3032).

5. The steel mold device for shaping a hyperbolic sedimentation tank according to claim 1, characterized in that: The shaped steel mold (4) is formed into an inverted truncated cone shape by welding a 4 mm thick steel plate (401) and a steel keel (402).

6. A construction method for a standardized steel mold device for a hyperbolic sedimentation tank according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Before construction, familiarize yourself with the drawings, conduct in-depth design of the construction drawings, and design the template blocks and support system in detail. After the main pool has passed the acceptance inspection, the position and elevation of the circular curved surface of the sedimentation tank bottom and the curved surface of the pool wall are set out according to the drawing requirements; S2: Perform simple roughening treatment on the base of the main pool wall and the joints of the new and old concrete of the secondary backfill; S3: According to the position of the positioned column mold (2), the column mold (2) is installed and fixed in the center of the sedimentation tank; S4: Fix the third shaping steel mold (3) to the angle adjustment plate (204) of the column mold (2) through the bolts on the angle adjustment plate (304); S5: Reinforce and connect the standardized steel formwork (1) to the pool wall concrete through bolts; S6: After the above steps are accepted, the first concrete pouring can be started. When the concrete is poured to the bottom of the standardized template (1) and the top of the standardized template four (4), the bottom plate curved surface concrete can be quickly finished according to the scraper (302) on the standardized template (3); S7: After the first bottom plate curved surface concrete is finally set, the second pool wall slope angle concrete pouring can be carried out, and the pool wall curved surface is finished according to the standardized template (1); S8: Curing shall be carried out promptly after the concrete pouring is completed; S9: When dismantling the template device, dismantle in sequence from the standardized steel mold 1 (1), the standardized steel mold 3 (3), the standardized steel mold 4 (4), and the column mold (2).

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