Liftable arch mould structure for building dry quenching furnace

Abstract

The utility model relates to a liftable arch mould structure for building a dry quenching furnace, which comprises a vault frame and a support, the vault frame comprises two arc-shaped mould pieces, a plurality of mould strips are connected between the two arc-shaped mould pieces at intervals, the lower part of the vault frame is supported by the support, the support comprises a bottom plate, a vertical column, a cross rod and a horizontal rod, the vertical column is connected with the bottom plate, and the horizontal rod is connected with the vertical column. The stand columns are connected with the transverse rods and the horizontal rods through lock catches, the stand columns, the transverse rods and the horizontal rods are arranged in a crossed mode, supporting blocks are arranged between the transverse rods and the tire pieces, and the stand columns are of telescopic rod structures. According to the utility model, the scalability and firmness of the arch mould are realized. And the masonry quality and the masonry time are ensured. The telescopic and locking structure ensures that the arch mould can be lifted and lowered according to the building height, and the ring beam arch building device can be suitable for building ring beam arches with different heights.

Description

Technical Field

[0001] The utility model relates to a formwork for furnace building, in particular to a liftable arch formwork structure for building a dry quenching coke furnace. Background Art

[0002] In a dry quenching coke furnace, the red coke produced by a coke oven is charged into the furnace through its supporting lifting device, and the circulating inert gas is used to exchange with the red coke, so that the red coke is cooled to below 200°C and discharged through the discharging device. The dry quenching coke production process improves the production environment, reduces pollution, improves the quality of coke, and effectively utilizes the waste heat of coke for power generation.

[0003] The cooling zone of the dry quenching coke furnace is located above the coke discharging device, which is the part where the coke is cooled and is one of the important parts of the dry quenching coke furnace body. The quality of its masonry affects the wear and life of the refractories in the cooling area. During the shutdown and maintenance of the dry quenching coke furnace, the ring beam arch above the manhole of the cooling zone often appears damaged and collapsed, and an auxiliary tool, the arch formwork, is needed to achieve masonry. Since the arch top needs to be built layer by layer and re-supported many times, the labor intensity is high. During the curing process of each layer of bricks, wooden squares need to be padded to support the arch top, and the contact area is small, so there is a possibility of brick dropping. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a liftable arch formwork structure for building a dry quenching coke furnace, which adopts a liftable arch formwork to improve work efficiency.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A liftable arch formwork structure for building a dry quenching coke furnace includes an arch top frame and a support. The arch top frame includes two arc-shaped formwork pieces, and a plurality of formwork bars are connected between the two arc-shaped formwork pieces at intervals. The arch top frame is supported by the support below. The support includes a bottom plate, columns, cross bars and horizontal bars. The columns are connected to the bottom plate, and the columns are connected to the cross bars and horizontal bars through locking buckles. The columns, cross bars and horizontal bars are arranged crosswise. A support block is provided between the cross bar and the formwork piece, and the columns are of telescopic rod structure.

[0007] The formwork bars are arranged in parallel, and the number of formwork bars is 13 - 15.

[0008] The formwork bars are connected to the upper surface of the formwork piece by rivets.

[0009] Both ends of the cross bar are abutted against the arc-shaped formwork piece.

[0010] The cross bar and the horizontal bar are arranged in multiple layers.

[0011] The described upright column comprises multiple sections of sleeves. Two adjacent sleeves can telescopically move. At the end of the lower sleeve among two adjacent sleeves, there is a threaded joint part. On the circumference of the threaded joint part, there are multiple axially opening slots. The telescopic length of the adjacent sleeves is defined by a locking sleeve connected in a mating manner on the threaded joint part.

[0012] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0013] The present utility model realizes the telescopic property and firmness of the arch centering. It ensures the masonry quality and masonry time. It solves the influence of the disassembly process of the original arch centering on the masonry time, and more reasonably optimizes the structure of the arch centering. It eliminates the insecurity of the original arch centering. The telescopic and locking structure ensures that the arch centering can be raised and lowered according to the masonry height and is applicable to the masonry of ring beam arches with different heights. During the curing process of the bricklaying, the upper surface of the arch centering can be fitted with the bricklaying to ensure the fixing effect. Description of the Drawings

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 is Figure 1 the enlarged view at A in

[0016] Figure 3 It is a top view of the present utility model.

[0017] In the figure: arc-shaped tire piece 1, tire strip 2, bottom plate 3, upright column 4, cross bar 5, horizontal bar 6, support block 7, sleeve 41, threaded joint part 42, axially opening slot 43, locking sleeve 44. Detailed Embodiment

[0018] In the description of the present utility model, it should be understood that the terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "multiple" is more than two.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0020] As Figures 1 - 3 , a liftable arch formwork structure for dry quenching furnace masonry, comprising an arch top frame and a support. The arch top frame includes two arc-shaped formwork pieces 1, and a plurality of formwork bars 2 are connected at intervals between the two arc-shaped formwork pieces 1. The arch top frame is supported by the support below. The support includes a bottom plate 3, columns 4, cross bars 5 and horizontal bars 6. The columns 4 are connected to the bottom plate 3, and the columns 4 are connected to the cross bars 5 and the horizontal bars 6 through locking buckles. The columns 4, the cross bars 5 and the horizontal bars 6 are arranged crosswise. A support block 7 is provided between the cross bar 5 and the formwork piece 1. The column 4 is of a telescopic rod structure.

[0021] The formwork bars 2 are arranged in parallel, and the number of formwork bars 2 is 13 - 15.

[0022] The formwork pieces 1 and the formwork bars 2 are made of wood boards, and the formwork bars 2 are connected to the upper surface of the formwork pieces 1 through rivets.

[0023] Both ends of the cross bar 5 are in contact with the arc-shaped formwork piece 1.

[0024] The cross bar 5 and the horizontal bar 6 are arranged in multiple layers.

[0025] The column 4 includes multiple sections of sleeves 41. Two adjacent sleeves 41 can telescopically move. At the end of the lower sleeve 41 among two adjacent sleeves 41, a threaded joint part 42 is provided. A plurality of axial opening grooves 43 are provided on the circumference of the threaded joint part 42. The telescopic length of the adjacent sleeves 41 is defined by a locking sleeve 44 connected through cooperation on the threaded joint part 42.

[0026] When masonry the arched manhole of the dry quenching furnace, place this arch formwork under the masonry hole, install the support, adjust the height of the telescopic rod of the column 4, so that the arch top frame meets the masonry requirements with the upper edge bricks. First, masonry the heat insulation layer bricks from the inside to the outside on the supported arch formwork. After the heat insulation layer bricks are masonry completed, then masonry the mullite bricks. The heat insulation layer bricks and the working layer bricks are masonry in rings. When masonry, first apply mortar, and use the squeezing mortar method to knead the mortar and bricks. Small wooden strips are stuffed between the bricks and the arch formwork bars, which can jack up the bricks. Use a wooden hammer to knock the bricks to adjust the angle of the bricks and the size of the mortar joint. The masonry direction is from both sides of the ring beam arch to the center of the ring in sequence. The last closing brick is completely driven in by the brick inserting method to complete the masonry of the whole ring.

[0027] After the masonry of the whole ring is completed, adjust the height of the telescopic rod of the column 4 so that the arch formwork frame abuts against the lower surface of the masonry arch top bricks. After the bricks are cured, adjust the height of the telescopic rod of the column 4, lower the arch formwork to the masonry height of the lower layer bricks, and repeat the masonry and fixing process until the masonry of the arched manhole is completed.

[0028] To make the objectives, technical solutions and technical effects of the present utility model clearer, the technical solutions in the embodiments of the present utility model will now be described clearly and completely. However, the embodiments described below are only a part of the embodiments of the present utility model, rather than all of them. Combining the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0029] Embodiment:

[0030] A liftable arch formwork structure for dry quenching furnace masonry, comprising an arch top frame and a support. The arch top frame includes two arc-shaped formwork pieces 1. The arc length of the arc-shaped formwork piece is 1255 mm and the height is 230 mm. A plurality of formwork bars 2 are connected at intervals between the two arc-shaped formwork pieces 1. The formwork bars 2 are arranged in parallel, and the number of formwork bars 2 is 15. The formwork bar is 645 mm long. The formwork piece 1 and the formwork bar 2 are made of wood, and the formwork bar 2 is connected to the upper surface of the formwork piece 1 by rivets.

[0031] The arch top frame is supported by the support below. The support includes a bottom plate 3, a column 4, a cross bar 5 and a horizontal bar 6. The column 4 is connected to the bottom plate 3. The column 4 is connected to three layers of cross bars 5 and horizontal bars 6 through a locking buckle. The column 4, the cross bar 5 and the horizontal bar 6 are arranged crosswise, and both ends of the cross bar 5 are in contact with the top of the arc-shaped formwork piece 1.

[0032] A support block 7 is provided between the cross bar 5 and the formwork piece 1, and the column 4 is of a telescopic rod structure.

[0033] The column 4 includes multiple sections of sleeves 41. The two adjacent sleeves 41 can be telescoped. At the end of the lower sleeve 41 among the two adjacent sleeves 41, there is a threaded joint part 42. A plurality of axial opening grooves 43 are provided on the circumference of the threaded joint part 42. The telescopic length of the adjacent sleeves 41 is limited by a locking nut 44 connected by matching on the threaded joint part 42.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liftable arch formwork structure for dry quenching furnace masonry, characterized in that, It includes a vault support and a bracket. The vault support includes two arc-shaped slices. A plurality of strip-shaped pieces are connected at intervals between the two arc-shaped slices. The vault support is supported by the bracket below. The bracket includes a bottom plate, columns, cross bars and horizontal bars. The columns are connected to the bottom plate. The columns connect the cross bars and the horizontal bars through locking buckles. The columns, cross bars and horizontal bars are arranged crosswise. Support blocks are provided between the cross bars and the slices. The columns are telescopic rod structures.

2. The liftable arch formwork structure for dry quenching furnace masonry according to claim 1, characterized in that, The strip-shaped pieces are arranged in parallel, and the number of strip-shaped pieces is 13-15.

3. A liftable arch formwork structure for dry quenching furnace masonry according to claim 1, characterized in that, The strip-shaped pieces are connected to the upper surface of the slices by rivets.

4. A liftable arch formwork structure for dry quenching furnace masonry according to claim 1, characterized in that, Both ends of the cross bar are in contact with the arc-shaped slices.

5. A liftable arch formwork structure for dry quenching furnace masonry according to claim 1, characterized in that, The cross bars and the horizontal bars are arranged in multiple layers.

6. The liftable arch formwork structure for dry quenching furnace masonry according to claim 1, characterized in that, The column includes multiple sections of sleeves. Adjacent sleeves can be telescopic. The end of the lower sleeve among adjacent two sleeves is provided with a threaded joint part. A plurality of axial opening grooves are provided on the circumference of the threaded joint part. The telescopic length of the adjacent sleeves is defined by a locking sleeve connected by matching on the threaded joint part.

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