Arch foot beam assembly of large-extraction-amount kiln and installation method of arch foot beam assembly

Abstract

The invention discloses a large-extraction-amount kiln arch foot beam assembly and an installation method thereof, and belongs to the field of substrate glass kiln equipment, the arch foot beam assembly comprises a plurality of sections of arch foot beams, a bottom supporting device and a rear end jacking device; each arch foot beam comprises channel steel and a reinforcing steel plate, the reinforcing steel plate is welded to the outer side of each channel steel, a preset gap is formed between every two sections of arch foot beams, the bottom supporting devices are installed at the bottoms of the reinforcing steel plates, and the rear end jacking devices are installed at the rear ends of the reinforcing steel plates. The bottom supporting device and the rear end jacking device are used for fixing the arch foot beam to the inner side of a kiln stand column, the arch foot beam and the bottom supporting device are insulated, and the arch foot beam and the rear end jacking device are insulated. The arch foot beam can solve the problem that an existing integral arch foot beam is distorted and deformed due to expansion in the process of heating up a kiln.

Description

Technical Field

[0001] The invention belongs to the field of substrate glass kiln equipment, and in particular relates to a large-output kiln arch beam assembly and an installation method thereof. Background Art

[0002] In the process of substrate glass kiln masonry installation, heating kiln baking and normal production, the kiln crown beam assembly plays a vital role. The kiln crown beam assembly is divided into two groups, left and right, which clamp and tighten the crown bricks at the left and right ends of the kiln crown, and are related to the safe operation of the entire kiln crown. Therefore, the structural design, processing and installation quality of the kiln crown beam assembly are particularly critical.

[0003] With the continuous development of substrate glass, small-sized substrate glass can no longer meet the market needs. China has begun to develop substrate glass with a size of G8.5 or above, that is, the design of a large-output substrate glass kiln. With the increase in the output of the kiln, the structural dimensions of the kiln have also changed significantly. The most obvious change is that the length of the kiln has been lengthened, and the corresponding length of the kiln arch beam has also increased. This puts higher requirements on the structural design and installation of the kiln arch beam assembly. It is necessary to design a new kiln arch beam assembly structure to meet the safe operation and stability of the large arch of the kiln with large output. Summary of the invention

[0004] The object of the present invention is to provide a large-lead-out kiln arch beam assembly and an installation method thereof, so as to solve the problem of twisting and deformation of the existing integral arch beam due to expansion during the heating and kiln baking process.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, a large-output kiln arch beam assembly comprises: a plurality of arch beam sections, a bottom support device and a rear end tightening device; The arch foot beam includes a channel steel and a reinforcing steel plate. The reinforcing steel plate is welded to the outer side of each channel steel. A preset gap is set between each section of the arch foot beam. The bottom supporting device is installed at the bottom of the reinforcing steel plate, and the rear end tightening device is installed at the rear end of the reinforcing steel plate. The bottom supporting device and the rear end tightening device are used to fix the arch foot beam to the inner side of the kiln column. The arch foot beam and the bottom supporting device are insulated, and the arch foot beam and the rear end tightening device are insulated.

[0006] In some embodiments, the bottom support device includes: a support frame, a first insulating plate, an adjustment steel plate and a connecting member; The support frame is installed on the inner side of the kiln column through a connecting piece, the adjusting steel plate is installed on the top of the support frame, the first insulating plate is arranged on the top of the adjusting steel plate, and the reinforcing steel plate is arranged on the top of the first insulating plate.

[0007] In some embodiments, the adjustment steel plate is composed of a plurality of stacked steel plates.

[0008] In some embodiments, the top surfaces of the steel plate, the first insulating plate, and the support frame are adjusted to have the same size.

[0009] In some embodiments, the rear end tightening device includes: a second insulating plate, a top plate, a sleeve, an adjusting screw and a nut; The sleeve and the nut are welded in the reserved hole of the kiln column, the top plate is arranged on the inner side of the kiln column, a top screw ring is arranged on the top plate, the top screw is adjusted to pass through the nut and the sleeve and press the top plate tightly against the top screw ring, the second insulating plate is arranged between the top plate and the reinforcing steel plate, and the top plate, the second insulating plate and the reinforcing steel plate are arranged tightly.

[0010] In some embodiments, the preset gap is 10 cm to 30 cm.

[0011] In a second aspect, a method for installing a large-output kiln arch beam assembly is provided, based on the arch beam assembly, and comprises the following steps: After the support frame is installed on the inner side of the kiln column through the connecting piece, the adjustment steel plate is placed on the top of the support frame, and the first insulating plate is placed on the top of the adjustment steel plate; Install each section of the arch beam on the outside of the kiln arch brick in sequence, and install the channel steel on the outer end surface of the kiln arch brick, so that the bottom of the reinforcing steel plate is in full contact with the first insulating plate; The arch foot beam is spot welded to the kiln column through a temporary fixing square tube, and a piece of the temporary fixing square tube is welded to the upper and lower ends of each section of the arch foot beam; After welding the sleeve and nut into the reserved hole of the kiln column, the second insulating plate is arranged at the rear end of the reinforcing steel plate, and the top plate is arranged at the rear end of the second insulating plate, with the top screw ring on the top plate facing the kiln column, so that the bottom of the second insulating plate and the top plate contact the top end of the first insulating plate; Pass the adjusting top screw through the nut and the sleeve in sequence and then tighten the top plate, each adjusting top screw corresponds to one top screw ring; After all the kiln arches are completed, tighten the adjustment screws and remove the temporarily fixed square tubes.

[0012] In some embodiments, in the step of sequentially installing each section of the arch beam on the outer side of the kiln arch brick, a gap of 10 cm to 30 cm is reserved between each section of the arch beam.

[0013] In some embodiments, in the step of installing the channel steel on the outer end surface of the kiln arch brick, the channel steel is in full contact with the outer end surface of the kiln arch brick.

[0014] In some embodiments, after the step of installing the channel steel on the outer end surface of the kiln foot brick and ensuring that the bottom of the reinforcing steel plate is in full contact with the first insulating plate is completed, the position of the kiln foot brick is ensured to be fixed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a large-lead-out kiln arch beam assembly, comprising a plurality of arch beam sections, a bottom supporting device and a rear end tightening device, a preset gap is set between each arch beam section, the bottom supporting device and the rear end tightening device fix the arch beam to the inner side of the kiln column, and divides an existing long arch beam into a plurality of short arch beam sections. On the one hand, it is convenient to process the arch beam and improve the processing accuracy of each arch beam section, and on the other hand, a gap is reserved between each arch beam section, and the expansion of the arch beam can be effectively released during the kiln heating and kiln baking process, thereby solving the problem of twisting and deformation of the arch beam caused by expansion of the previous integral arch beam during the kiln heating and kiln baking process, thereby ensuring the safety of the kiln arch during the entire heating and kiln baking process.

[0016] Furthermore, the present invention arranges a first insulating plate and a second insulating plate to insulate the bracket beam from the bottom supporting device and the rear end tightening device, thereby effectively preventing current or heat from being directly transferred to the kiln structure, avoiding safety accidents caused by current or high temperature, and protecting the safe operation of the kiln and its surrounding facilities.

[0017] Furthermore, in the bottom supporting device provided in the present invention, the supporting frame is installed on the inner side of the kiln column through a connecting piece, the adjusting steel plate is installed on the top of the supporting frame, the first insulating plate is arranged on the top of the adjusting steel plate, and the reinforcing steel plate is arranged on the top of the first insulating plate, so as to facilitate the adjustment of the height and position as needed during the installation process.

[0018] Furthermore, the present invention achieves top tightening by adjusting the top screw, which is simple and quick to operate, thereby improving installation efficiency. The second insulating plate and the top plate are used in conjunction to achieve top tightening, and the structure is detachable, which facilitates subsequent maintenance and repair work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the bracket beam structure provided in this embodiment; Figure 2 A schematic diagram of a single-section bracket beam structure provided in this embodiment; Figure 3 A schematic diagram of the structure of the bottom support device in the large-output kiln arch beam assembly provided in this embodiment; Figure 4 A schematic diagram of the structure of the rear end tightening device in the large-output kiln arch beam assembly provided in this embodiment; Figure 5 A schematic diagram of the installation of a large-output kiln arch beam assembly provided in this embodiment; In the figure, 1. channel steel; 2. reinforcing steel plate; 3. support frame; 4. first insulating plate; 5. adjusting steel plate; 6. connecting piece; 7. second insulating plate; 8. top plate; 9. casing; 10. adjusting top screw; 11. nut; 12. arch foot beam; 13. bottom supporting device; 14. rear end tightening device; 15. kiln column; 16. kiln arch foot brick; 17. kiln arch. DETAILED DESCRIPTION

[0020] In the following, only certain exemplary embodiments are briefly described, and the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0021] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] This embodiment provides a large-output kiln arch beam assembly, including an arch beam 12, a bottom supporting device 13 and a rear end tightening device 14.

[0026] like Figure 1 As shown, the structure of the arch foot beam 12 is designed to be segmented, and a gap of 10 to 30 mm is reserved between each arch foot beam 12 during installation.

[0027] like Figure 2 As shown, the inner side of the bracket beam 12 is a channel steel 1, and the outer side of the channel steel 1 is welded with a reinforcing steel plate 2.

[0028] The inner channel steel 1 of the arch foot beam 12 is close to the outer side of the kiln arch foot bricks 16 at the left and right ends of the kiln arch 17, the bottom of the arch foot beam 12 is close to the bottom supporting device 13, and the reinforcing steel plate 2 on the outer side of the arch foot beam 12 is close to the rear end tightening device 14.

[0029] like Figure 3 As shown, the bottom supporting device 13 includes a supporting frame 3, a first insulating plate 4, an adjusting steel plate 5 and a connecting member 6, the connecting member 6 includes bolts, nuts and gaskets, the supporting frame 3 is installed on the inner side of the kiln column 15 with the connecting member 6, the adjusting steel plate 5 is installed on the top of the supporting frame 3, and the first insulating plate 4 is arranged between the adjusting steel plate 5 and the base beam 12.

[0030] The adjusting steel plate 5 of the bottom supporting device 13 is formed by stacking a number of steel plates of different thicknesses.

[0031] The length and width dimensions of the adjusting steel plate 5 , the first insulating plate 4 and the top of the supporting frame 3 of the bottom supporting device 13 are completely the same.

[0032] The bracket beam 12 and the bottom supporting device 13 are insulated from each other.

[0033] like Figure 4 As shown, the rear end tightening device 14 includes a top plate 8, a second insulating plate 7, an adjusting screw 10, a sleeve 9 and a nut 11. The sleeve 9 and the nut 11 are welded in advance in the reserved hole of the kiln column 15, and the adjusting screw 10 passes through the nut 11 and the sleeve 9 to tighten the top plate 8. A screw ring is provided on the top plate 8, and the second insulating plate 7 is provided between the top plate 8 and the reinforcing steel plate 2 at the rear end of the shank beam.

[0034] The bracket beam 12 and the rear end tightening device 14 are insulated from each other.

[0035] This embodiment also provides a method for installing a large-output kiln arch beam assembly, and the specific steps are as follows: The first step is to install and adjust all the kiln arch foot bricks 16 at the left and right ends of the kiln arch 17 into place, and it is necessary to ensure that the inner size of the left and right ends meets the design requirements.

[0036] In the second step, the support frame 3 of the bottom support device 13 of the bracket beam is installed in place using the connecting piece 6.

[0037] In the third step, the adjusting steel plate 5 of the bottom supporting device 13 is placed on the top of the supporting frame 3 , and then the first insulating plate 4 is placed on the top of the adjusting steel plate 5 .

[0038] The fourth step is to install each section of the kiln foot beam 12 on the outside of the kiln foot brick 16 in sequence, leaving a 10-30mm gap between each section of the kiln foot beam 12 during installation, check and confirm that the channel steel 1 of the kiln foot beam 12 is inserted into the kiln foot brick 16, the inner side of the channel steel 1 is in full contact with the outer end surface of the kiln foot brick 16, and the bottom of the reinforcing steel plate 2 at the rear end of the channel steel 1 is in full contact with the first insulating plate 4 of the bottom supporting device 13. At the same time, it must be ensured that the front, back, left and right positions of all kiln foot bricks 16 cannot be changed.

[0039] The fifth step is to spot weld each section of the arch beam 12 to the kiln column 15 using the arch beam to temporarily fix the square tube, and weld one piece of temporarily fixed square tube at each end of each arch beam 12.

[0040] The sixth step is to check and confirm that the sleeve 9 and the nut 11 of the rear end tightening device 14 have been welded into the reserved hole of the kiln column 15, place the second insulating plate 7 on the rear end of the reinforcing steel plate 2 at the rear end of the bracket beam 12, and then place the top plate 8 on the rear end of the second insulating plate 7, with the top screw ring on the top plate 8 facing one end of the kiln column 15, and the bottoms of the second insulating plate 7 and the top plate 8 are in contact with the top end of the first insulating plate 4 of the bottom supporting device 13.

[0041] Step 7: Pass the adjusting screw 10 of the rear end tightening device 14 through the nut 11 and the sleeve 9 and tighten the top plate 8. Pay attention to check and confirm that the four adjusting screws correspond to the four screw rings on the top plate one by one.

[0042] Step 8. After the kiln arch 17 is completely built, tighten the adjustment screws 10 of the rear end tightening device 14 with a wrench. After checking and confirming that everything is correct, remove the square tubes temporarily fixing all the arch foot beams.

[0043] After the installation, the bracket beam assembly is as follows Figure 5 shown.

[0044] The kiln arch beam provided in the present embodiment is designed to be segmented, and a gap of 10 to 30 mm is reserved between each section of the side arch beam during on-site installation, and the front and rear joints of the arch beam are designed on the bottom support device of the arch beam. In this way, the original long arch beam is divided into several short arch beams. On the one hand, it is convenient for arch beam processing and improves the processing accuracy of each arch beam. On the other hand, when the arch beam is installed on-site, a gap is reserved between each section, so that the expansion of the arch beam can be effectively released during the kiln heating and kiln baking process, thereby solving the problem of twisting and deformation of the arch beam caused by expansion of the previous integral arch beam during the heating and kiln baking process, thereby ensuring the safety of the kiln arch during the entire heating and kiln baking process.

[0045] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects, not exclusive, and all changes within the scope of the present invention or equivalent to the scope of the present invention are included in the present invention.

Claims

1. A large-output kiln arch beam assembly, characterized in that: include: Multi-section arch beam, bottom support device and rear end tightening device; The arch foot beam comprises a channel steel (1) and a reinforcing steel plate (2), the reinforcing steel plate (2) is welded to the outer side of the channel steel (1), a preset gap is set between each section of the arch foot beam, the bottom support device is installed at the bottom of the reinforcing steel plate (2), the rear end tightening device is installed at the rear end of the reinforcing steel plate (2), the bottom support device and the rear end tightening device are used to fix the arch foot beam to the inner side of the kiln column, the arch foot beam and the bottom support device are insulated, and the arch foot beam and the rear end tightening device are insulated.

2. The large-output kiln arch beam assembly according to claim 1 is characterized in that: The bottom support device comprises: a support frame (3), a first insulating plate (4), an adjustment steel plate (5) and a connecting piece (6); The support frame (3) is installed on the inner side of the kiln column through a connecting piece (6), the adjusting steel plate (5) is installed on the top of the support frame (3), the first insulating plate (4) is arranged on the top of the adjusting steel plate (5), and the reinforcing steel plate (2) is arranged on the top of the first insulating plate (4).

3. The large-output kiln arch beam assembly according to claim 2 is characterized in that: The adjustment steel plate (5) is composed of a plurality of stacked steel plates.

4. The large-output kiln arch beam assembly according to claim 2 is characterized in that: The top surface dimensions of the steel plate (5), the first insulating plate (4) and the support frame (3) are adjusted to be the same.

5. The large-output kiln arch beam assembly according to claim 2 is characterized in that: The rear end tightening device comprises: a second insulating plate (7), a top plate (8), a sleeve (9), an adjusting top screw (10) and a nut (11); The sleeve (9) and the nut (11) are welded in a reserved hole of a kiln column, the top plate (8) is arranged on the inner side of the kiln column, a top screw ring is arranged on the top plate (8), the top screw (10) is adjusted to pass through the nut (11) and the sleeve (9) and press the top plate (8) in correspondence with the top screw ring, the second insulating plate (7) is arranged between the top plate (8) and the reinforcing steel plate (2), and the top plate (8), the second insulating plate (7) and the reinforcing steel plate (2) are arranged in close contact with each other.

6. The large-output kiln arch beam assembly according to claim 1 is characterized in that: The preset gap is 10cm~30cm.

7. A method for installing a large-output kiln arch beam assembly, characterized in that: The bracket beam assembly according to claim 5 comprises the following steps: After the support frame (3) is installed on the inner side of the kiln column through the connecting piece (6), the adjustment steel plate (5) is placed on the top of the support frame (3), and the first insulating plate (4) is placed on the top of the adjustment steel plate (5); Each section of the arch beam is sequentially installed on the outside of the kiln arch brick, and the channel steel (1) is installed on the outer end surface of the kiln arch brick, and the bottom of the reinforcing steel plate (2) is completely in contact with the first insulating plate (4); The arch foot beam is spot welded to the kiln column through a temporary fixing square tube, and a piece of the temporary fixing square tube is welded to the upper and lower ends of each section of the arch foot beam; After the sleeve (9) and the nut (11) are welded into the reserved hole of the kiln column, the second insulating plate (7) is arranged at the rear end of the reinforcing steel plate (2), and the top plate (8) is arranged at the rear end of the second insulating plate (7), with the top screw ring on the top plate (8) facing the kiln column, so that the bottoms of the second insulating plate (7) and the top plate (8) contact the top end of the first insulating plate (4); Passing the adjusting top screw (10) through the nut (11) and the sleeve (9) in sequence and then tightening the top plate (8), each adjusting top screw (10) corresponds to one top screw ring; After the kiln arch is completely built, tighten the adjusting screw (10) and remove the temporarily fixed square tube.

8. The installation method according to claim 7, characterized in that: In the step of sequentially installing each section of the arch foot beam on the outer side of the kiln arch foot brick, a gap of 10 cm to 30 cm is reserved between each section of the arch foot beam.

9. The installation method according to claim 7, characterized in that: In the step of installing the channel steel (1) on the outer end surface of the kiln arch brick, the channel steel (1) is in complete contact with the outer end surface of the kiln arch brick.

10. The installation method according to claim 7, characterized in that: After the step of installing the channel steel (1) on the outer end surface of the kiln arch brick and ensuring that the bottom of the reinforcing steel plate (2) is in full contact with the first insulating plate (4) is completed, the position of the kiln arch brick is ensured to be fixed.

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