Mould device for integrally pouring flue lining

Abstract

The utility model relates to a mould device for integral pouring of a flue liner, which belongs to the technical field of flue liner construction and comprises a cylindrical mould component, the mould component is formed by splicing at least two mould weldments, and the mould weldments are detachably connected; an FRP glass fiber reinforced plastic partition plate is arranged between every two adjacent mold welding pieces, and the distance a from the side, away from the center of the mold assembly, of each FRP glass fiber reinforced plastic partition plate to the center of the mold assembly is larger than the outer diameter of the mold assembly and smaller than the inner diameter of the flue. The utility model is made of steel plates, is formed by splicing a plurality of sections, has high strength, is not easy to deform, is arranged in the flue when the flue lining is prefabricated, does not need to be supported and reinforced, can realize the integral one-time pouring of a single-section flue lining, simplifies the construction process, and improves the construction efficiency; and after pouring is completed, the construction joints can be hoisted out in a segmented mode after being detached, the FRP partition plates are used for forming the construction joints, operation of constructors is convenient, repeated utilization can be achieved, and the engineering construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to a mold device for integrally pouring a flue lining, belonging to the technical field of flue lining construction. Background Art

[0002] Flue lining refers to the refractory material layer installed inside the flue. Its main function is to protect the flue structure from the erosion of high-temperature flue gases while maintaining the integrity and durability of the flue. Flue lining is usually made of refractory castables, which have good fire resistance, corrosion resistance and thermal stability.

[0003] The existing molds used for pouring flue linings are made of wood and tinplate. Since the wood mold has low strength and is easily deformed, it needs to be made into a whole to increase its strength. In addition, the size cannot be too large, which leads to the following problems:

[0004] 1. The lining of a single flue needs to be cast in layers multiple times. During the casting process, positioning reinforcement bars are required inside the wooden formwork, and fixed square timbers, frame pipes, top screws, etc. are used outside the wooden formwork to further strengthen the fixation. The construction process is complicated, the construction efficiency is low, and the operation is inconvenient for the construction workers.

[0005] 2. To create construction joints, each layer of flue lining needs to be poured in sections multiple times. After pouring and curing one section, another section can be poured, which makes the construction process complicated.

[0006] 3. Wooden formwork is easily damaged during the construction process and is difficult to reuse. Utility Model Content

[0007] In view of the above deficiencies in the existing technology, the technical problem to be solved by the present invention is: to provide a mold device for integral casting of the flue lining, which is made of steel plates and spliced ​​together in multiple sections. It has high strength, is not easy to deform, and does not require support and reinforcement. It can realize the integral casting of a single section of the flue lining in one time, simplifies the construction process, improves construction efficiency, is easy for construction personnel to operate, and can be reused, thereby achieving the purpose of reducing project costs and increasing efficiency.

[0008] The jig device for integrally casting the flue lining described in the utility model includes a jig assembly, which is cylindrical and composed of at least two jig weldments spliced ​​together, and each jig weldment is detachably connected; an FRP fiberglass partition is provided between two adjacent jig weldments, and the FRP fiberglass partition is used to form a construction joint, and a distance a from the side of the FRP fiberglass partition away from the center of the jig assembly to the center of the jig assembly is greater than the outer diameter of the jig assembly and smaller than the inner diameter of the flue.

[0009] The technical solution of the utility model is to provide a mold device for integrally pouring the flue lining. When the flue lining is prefabricated, it is placed inside the flue. After the pouring is completed, it can be disassembled and hoisted out in sections, and FRP glass fiber reinforced plastic partitions are used to form construction joints. There is no need for reinforced fixation, which simplifies the construction process and improves construction efficiency.

[0010] Preferably, the cross-section of the tire weldment is arc-shaped, and the tire weldment includes a tread plate, vertical ribs and annular ribs; the vertical ribs are fixed at both ends of the tread plate, the annular ribs are multiple and located between the two vertical ribs, and the annular ribs are evenly distributed on the tread plate.

[0011] Preferably, two adjacent jig weldments are connected by bolts, and a connecting plate is sandwiched between the two adjacent jig weldments to facilitate lifting and disassembly of the jig assembly.

[0012] Preferably, the height of the connecting plate is greater than that of the tread plate, the connecting plate is provided with connecting holes for the bolts to pass through, and the upper end of the connecting plate is also provided with a lifting hole.

[0013] Preferably, the jig weldment is made by welding steel plates.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The jig device for integrally pouring the flue lining described in the utility model is made of steel plates and is formed by splicing multiple sections together. It has high strength and is not easy to deform. When the flue lining is prefabricated, it is placed inside the flue without the need for support and reinforcement. The single-section flue lining can be poured as a whole at one time, which simplifies the construction process and improves the construction efficiency. After the pouring is completed, it can be disassembled and hoisted out in sections, and a construction joint can be formed using FRP glass fiber reinforced plastic partitions. It is easy for construction workers to operate and can be reused, reducing the cost of engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of the utility model when in use;

[0017] Figure 2 is a top view of the tire assembly;

[0018] Figure 3 yes Figure 2 AA cross-sectional view.

[0019] In the figure: 1. Flue; 2. Mould assembly; 21. Mould weldment; 211. Annular reinforcement; 212. Vertical reinforcement; 213. Tread plate; 22. Connecting plate; 221. Lifting hole; 222. Connecting hole; 23. FRP partition; 3. Refractory castable. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to specific embodiments.

[0021] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described herein.

[0022] For example, multiple embodiments may have various modifications and various forms, and it should be understood that the scope of rights of the present invention includes equivalents that can implement the technical idea.

[0023] like Figures 1 to 3 As shown, this embodiment is implemented through the following technical solutions: it includes a jig assembly 2, the jig assembly 2 is cylindrical, the jig assembly 2 is composed of three jig weldments 21, and each jig weldment 21 is detachably connected; an FRP (Fiber-Reinforced Polymer / Plastic) partition is provided between two adjacent jig weldments, the FRP fiberglass partition 23 is used to form a construction joint, and the distance a from the side of the FRP fiberglass partition 23 away from the center of the jig assembly 2 to the center of the jig assembly 2 is greater than the outer diameter of the jig assembly 2 and smaller than the inner diameter of the flue 1.

[0024] In this embodiment, the cross-section of the tire weldment 21 is arc-shaped, and the tire weldment 21 includes a tread panel 213, vertical ribs 212 and annular ribs 211; the vertical ribs 212 are fixed at both ends of the tread panel 213, and the annular ribs 211 are multiple pieces and located between the two vertical ribs 212, and the annular ribs 211 are evenly distributed on the tread panel 213.

[0025] Two adjacent jig weldments 21 are connected by bolts. A connecting plate 22 is placed between them to facilitate lifting and disassembly of the jig assembly. The connecting plate 22 is taller than the tread plate 213 and is provided with connecting holes 222 for bolts to pass through. A lifting hole 221 is also provided at the top of the connecting plate 22. The jig weldments 21 are welded from steel plates.

[0026] The method of using the utility model is as follows:

[0027] 1. Install the steel plate flat on the flat ground of the factory and use a laser to level it;

[0028] 2. According to the specifications of the flue 1 and the thickness of the flue lining, locate the center point on the steel plate and draw the corresponding positions of the mold component 2 and the flue 1;

[0029] 3. Weld four trapezoidal ribs along the circumferential direction on the inner circle of the drawn mold assembly 2; and weld four trapezoidal ribs along the circumferential direction on the outer circle of the drawn flue 1. Install adjustment screws on the trapezoidal ribs for adjusting the position;

[0030] 4. Assemble the jig assembly 2 so that the FRP partition 23 protrudes about 50 mm from the tread plate 213; then hoist the jig assembly 2 to the marked position and adjust the position using the trapezoidal ribs on the inner ring and the adjusting screws;

[0031] 5. Lift the flue 1 with the anchor welded and fiberboard paved, and put it on the outside of the jig assembly 2. Use the trapezoidal ribs on the outer ring and the adjusting screws to adjust the positioning;

[0032] 6. Use clips to connect and fix the positioned flue 1 and the top of the mold assembly 2 to ensure that the thickness deviation of the flue lining poured later meets the requirements;

[0033] 7. Place a pouring platform on top of the jig assembly 2. Workers stand on the pouring platform to pour refractory castable 3 into the area between the jig assembly 2 and the flue 1 and vibrate it;

[0034] 8. After the refractory castable 3 has been naturally cured for 24 hours, the bolts are removed, and the connecting plate 22 is pulled out using a crane, and then the jig weldments 21 are lifted out in sequence; after the jig weldments 21 are cleaned, they can be assembled and the surface is oiled before continued use; the FRP glass fiber reinforced plastic partition 23 is connected to the refractory castable 3 to form the flue lining;

[0035] 9. When the flue lining is used in the later stage, the FRP glass fiber reinforced plastic partition 23 is burned at high temperature to form a construction joint; in order to prevent the cracks in the flue lining from spreading, a gap for thermal expansion is reserved for the flue lining.

[0036] Of course, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples. Equivalent changes and improvements made by ordinary technicians in this technical field within the essential scope of the present invention should all fall within the scope of the patent of the present invention.

Claims

1. A mold device for integrally casting a flue lining, characterized in that: The invention comprises a jig assembly (2), which is cylindrical and is composed of at least two jig weldments (21) spliced ​​together, wherein the jig weldments are detachably connected; an FRP glass fiber reinforced plastic partition (23) for forming a construction joint is provided between two adjacent jig weldments, and a distance a from a side of the FRP glass fiber reinforced plastic partition (23) away from the center of the jig assembly (2) to the center of the jig assembly (2) is greater than the outer diameter of the jig assembly (2) and smaller than the inner diameter of the flue (1).

2. The mold device for integrally casting the flue lining according to claim 1, characterized in that: The cross section of the tire mold weldment (21) is arc-shaped. The tire mold weldment (21) comprises a tread plate (213), vertical ribs (212) and annular ribs (211); the vertical ribs (212) are fixed to both ends of the tread plate (213); the annular ribs (211) are multiple and located between the two vertical ribs; and the annular ribs (211) are evenly distributed on the tread plate (213).

3. The jig device for integrally casting the flue lining according to claim 2, characterized in that: Two adjacent jig weldments (21) are connected by bolts, and a connecting plate (22) is sandwiched between the two adjacent jig weldments (21) for easy lifting and disassembly.

4. The jig device for integrally casting the flue lining according to claim 3, characterized in that: The height of the connecting plate (22) is greater than the height of the tread plate (213). The connecting plate (22) is provided with a connecting hole (222) for the bolt to pass through. The upper end of the connecting plate (22) is also provided with a lifting hole (221).

5. The jig device for integrally casting the flue lining according to claim 1, characterized in that: The jig weldment (21) is made by welding steel plates.

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