Special safety sealing and pressing device for high-temperature ceramic filter cartridge

Abstract

The utility model relates to sealing device technical field discloses a kind of special safety sealing presser device of high-temperature ceramic filter cartridge, including the presser piece and fixed device on ceramic filter cartridge, presser piece includes square tube beam and presser ring, two square tube beams are equipped on every group 4 filter cartridge ceramic filter cartridge, square tube beam is crossed fixed, and end portion is connected with flower board through fixed device. Device fixing structure is convenient to dismantle replacement, and device uses the fixed structure of square tube beam and presser ring, device structure is compact, also can make lower filter cartridge and ceramic fiber pad stress uniform, avoid dust leakage. Device fixing structure is connected fixed by bolt fixed base, device is detachably arranged, convenient structure replacement, and device is bolted after assembly, avoid bolt injury, device is fixed by square tube beam, presser ring as presser structure, ceramic filter cartridge is fixed, device structure is stable, flatness is high after pressing, ceramic filter cartridge stress uniform, avoid uneven stress, ceramic filter cartridge breakage or leakage occurs.

Description

Technical Field

[0001] This utility model relates to the field of sealing devices, and in particular to a safety sealing and pressing device for high-temperature ceramic filter cartridges. Background Technology

[0002] High-temperature dust collector systems, with temperatures exceeding 300℃, cannot use conventional filter bags and must employ ceramic filter cartridges, which can withstand temperatures up to 600℃. During installation, the ceramic filter cartridge is vertically inserted into the tube sheet from above, hanging on the tube sheet using its flange. A gap exists between the filter cartridge and the tube sheet, sealed with a ceramic fiber gasket. A pressure plate then presses the flange onto the filter cartridge, with fixing bolts welded around the flange. The pressure plate is tightened against the flange by these bolts, compressing the ceramic fiber gasket at the bottom of the flange to prevent dust from leaking out of the gap. Currently, the hexagonal heads of the fixing bolts are permanently welded to the tube sheet and cannot be removed. If a bolt is damaged, it must be cut and re-welded, a complex and labor-intensive process. Furthermore, workers cannot stand firmly during filter cartridge installation; if a worker falls, their body will directly contact the bolt heads, posing a significant danger. Furthermore, the device typically uses one pressure plate to press four filter cartridges together. The pressure plate has poor flatness, resulting in uneven stress on the flanges of the filter cartridges after pressing, which leads to damage and leakage of the ceramic fiber pads.

[0003] Patent application CN 209549006U discloses a high-temperature resistant filter dust collector, including a dust collector housing, a connecting plate, a tube sheet, a pressure plate, a venturi tube, and a filter cartridge. The tube sheet is installed in the middle of the dust collector housing and overlaps with the upper steel of the dust collector housing. The upper end of the connection between the tube sheet and the dust collector housing is a connecting plate, and the lower end is a tube sheet support steel. The filter cartridge is connected to the tube sheet, and the venturi tube is installed on the filter cartridge. A pressure plate is installed at the upper end of the venturi tube. Bolts or studs are welded on the tube sheet, and the bolts or studs are assembled with the pressure plate by nuts. The filter cartridge and the venturi tube are fixed to the tube sheet by bolts or studs, nuts, and pressure plate.

[0004] The existing technology uses a single pressure plate to press multiple filter cartridges together. The pressure plate has poor flatness, and after pressing the filter cartridges, the flanges of the filter cartridges are prone to uneven stress, which can lead to damage and leakage of the ceramic fiber pads.

[0005] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide a special safety sealing and pressing device for high-temperature ceramic filter cartridges. The device's fixing structure is easy to disassemble and replace. The device adopts a fixing structure of square tube beam and pressing ring, which makes the device compact. It can also make the filter cartridge and ceramic fiber gasket at the bottom evenly stressed, thus preventing dust leakage.

[0007] The technical solution adopted in this utility model is: A special safety sealing and pressing device for high-temperature ceramic filter cartridges includes a pressing plate and a fixing device on the ceramic filter cartridge. The pressing plate includes a square tube beam and a pressing ring. Two square tube beams are provided on each group of four ceramic filter cartridges. The square tube beams are fixed crosswise and the ends are connected to the tube sheet through the fixing device.

[0008] By adopting the above structure, the device uses a square tube beam and a clamping ring for fixing. The device structure is compact and can also ensure that the lower filter cartridge and ceramic fiber pad are subjected to uniform force, thus preventing dust leakage.

[0009] Preferably, the fixing device includes a fastening bolt and a bolt fixing base. The bolt fixing base has an open bolt slot on the upper part, extends downward, and is welded to the tube sheet at the bottom.

[0010] Preferably, the square tube beam has a fixing hole at its end, and the fixing hole is fixed to the open bolt slot on the lower bolt fixing base by a fastening bolt.

[0011] By adopting the above structure, the device fixing structure is connected and fixed by bolt fixing base. The device is detachable, which facilitates structural replacement. After the device is assembled, it is fixed with bolts to avoid bolt injury.

[0012] Preferably, the ceramic filter cartridge is inserted vertically from above the tube sheet, and the upper edge of the ceramic filter cartridge is provided with a filter cartridge flange. The filter cartridge flange hangs on the tube sheet, and a ceramic fiber pad is provided between the bottom surface of the filter cartridge flange and the tube sheet.

[0013] By adopting the above structure, a ceramic fiber pad is placed between the filter cartridge flange and the tube sheet to prevent dust from overflowing from the gap.

[0014] Preferably, the clamping ring is annular and is pressed onto the flange of the filter cartridge at the upper edge of the ceramic filter cartridge.

[0015] Preferably, the square tube beam is pressed onto the clamping ring, and its center coincides with that of the clamping ring.

[0016] By adopting the above structure, using square tube beams and clamping rings as clamping structures to fix the ceramic filter cartridge, the device structure is stable. After clamping, the flatness is high, and the ceramic filter cartridge is subjected to uniform force, avoiding uneven force and preventing damage or leakage of the ceramic filter cartridge.

[0017] Preferably, the ceramic filter cartridge is provided with a venturi tube, the edge of which is fixed between the clamping ring and the flange of the filter cartridge.

[0018] Compared with the prior art, this utility model has the following advantages: 1. The fixing structure of this utility model is easy to disassemble and replace. The device adopts a fixing structure of square tube beam and clamping ring, which makes the device compact and can also make the filter cartridge and ceramic fiber pad at the bottom evenly stressed, thus avoiding dust leakage.

[0019] 2. The fixing structure of this utility model device is fixed by bolt fixing base. The device is detachable, which facilitates the replacement of the structure. After the device is assembled, it is fixed with bolts to avoid bolt injury.

[0020] 3. The device of this utility model uses a square tube beam and a clamping ring as a clamping structure to fix the ceramic filter cartridge. The device has a stable structure, high flatness after clamping, and uniform force on the ceramic filter cartridge, avoiding uneven force and preventing damage or leakage of the ceramic filter cartridge. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Schematic diagram of the structure of AA; Figure 3 This is a schematic diagram of the bolt fixing base of this utility model; Figure 4 This is a schematic diagram of the bolt fixing base of this utility model; Figure 5 This is a schematic diagram of the structure of the clamping ring and the square tube beam of this utility model; Figure 6 This utility model Figure 5 A schematic diagram of the structure of BB.

[0022] The components include: 1. clamping plate; 2. fastening bolt; 3. bolt fixing base; 4. perforated plate; 5. ceramic fiber pad; 6. ceramic filter cartridge; 7. filter cartridge flange; 8. venturi tube; 9. clamping ring; 10. square tube beam; 11. open bolt slot; 12. base; 13. fixing opening. Detailed Implementation

[0023] like Figure 1-6 As shown, a special safety sealing and clamping device for high-temperature ceramic filter cartridges includes a clamping plate 1 and a fixing device mounted on the ceramic filter cartridge 6. The clamping plate 1 includes a square tube beam 10 and a clamping ring 9. Two square tube beams 10 are provided on each group of four ceramic filter cartridges 6. The square tube beams 10 are cross-fixed, and their ends are connected to the tube sheet 4 through the fixing device. A Venturi tube 8 is provided inside the ceramic filter cartridge 6. The edge of the Venturi tube 8 is fixed between the clamping ring 9 and the filter cartridge flange 7. The device's fixing structure is easy to disassemble and replace. The device adopts a fixing structure of square tube beam 10 and clamping ring 9, and the device structure is compact. It can also ensure that the lower filter cartridge and ceramic fiber pad 5 are subjected to uniform force, preventing dust leakage.

[0024] The fixing device includes fastening bolts 2 and bolt fixing bases 3. The bolt fixing base 3 has an open bolt slot 11 on its upper part, and the base 12 extends downwards, with its bottom welded to the tube sheet 4. The square tube beam 10 has a fixing opening 13 at its end, which is fixed to the open bolt slot 11 on the lower bolt fixing base 3 by fastening bolts 2. A ceramic filter cartridge 6 is vertically inserted from above the tube sheet 4. The upper edge of the ceramic filter cartridge 6 has a filter cartridge flange 7, which hangs on the tube sheet 4. A ceramic fiber pad 5 is provided between the bottom surface of the filter cartridge flange 7 and the tube sheet 4. The device fixing structure is connected and fixed by the bolt fixing base 3. The device is detachable, facilitating structural replacement, and the bolts are used for fixing after assembly, preventing injury from bolts.

[0025] The clamping ring 9 is circular and is pressed onto the filter cartridge flange 7 on the upper edge of the ceramic filter cartridge 6. The square tube beam 10 is pressed onto the clamping ring 9, coinciding with the center of the clamping ring 9. The square tube beam 10 and the clamping ring 9 serve as the clamping structure to fix the ceramic filter cartridge 6. The device structure is stable, the flatness is high after clamping, and the ceramic filter cartridge 6 is subjected to uniform force, avoiding uneven force distribution that could lead to damage or leakage of the ceramic filter cartridge 6.

[0026] The device structure includes a bolt fixing base 3 with an open bolt slot 11. The bolt fixing base 12 is welded to the tube sheet 4. The height of the welded bolt fixing base 3 is lower than the filter cartridge flange 7 of the ceramic filter cartridge 6. When installing the fastening bolt 2, the hexagonal head of the fastening bolt 2 can be directly clamped onto the bolt fixing base 3. The clamping plate 1 on the filter cartridge flange 7 is provided with a square tube beam 10 and a clamping ring 9. The square tube beam 10 has a fixing hole 13 on the outside, and the lower clamping ring 9 is a circular ring. The device bolt fixing base 3 is equipped with an open bolt slot 11. During installation, simply insert the hexagonal head of the fastening bolt 2 into the slot, which is convenient and quick. If the fastening bolt 2 is worn or lost, it can be easily and quickly replaced with a new one. When workers install the filter cartridge clamping device, they can install the fastening bolt 2 simultaneously with the ceramic filter cartridge 6. Where there is no ceramic filter cartridge 6, there is only the base, eliminating the previous large group of welded bolts, thus ensuring safety. Furthermore, the structure adopts a square tube beam 10 and a clamping ring 9, which can make the lower ceramic filter cartridge 6 and ceramic fiber pad 5 bear force evenly and prevent dust leakage.

[0027] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should be included within the scope of protection defined by the claims of the present utility model.

Claims

1. A safety sealing and clamping device for high-temperature ceramic filter cartridges, comprising a clamping plate and a fixing device disposed on the ceramic filter cartridge, characterized in that: The clamping plate includes a square tube beam and a clamping ring. Each group of four ceramic filter cartridges is equipped with two square tube beams, which are fixed at an angle and connected to the tube sheet at their ends by a fixing device.

2. The special safety sealing and pressing device for high-temperature ceramic filter cartridges according to claim 1, characterized in that: The fixing device includes fastening bolts and bolt fixing bases. The bolt fixing bases have open bolt slots on the upper part, extend downwards, and are welded to the bottom of the tube sheet.

3. The special safety sealing and pressing device for high-temperature ceramic filter cartridges according to claim 1, characterized in that: The square tube beam has a fixing hole at its end, which is fixed to the open bolt slot on the bolt fixing base below by fastening bolts.

4. The special safety sealing and pressing device for high-temperature ceramic filter cartridges according to claim 1, characterized in that: The ceramic filter cartridge is inserted vertically from above the tube sheet. The upper edge of the ceramic filter cartridge is provided with a filter cartridge flange, which is hung on the tube sheet. A ceramic fiber pad is provided between the bottom surface of the filter cartridge flange and the tube sheet.

5. The special safety sealing and pressing device for high-temperature ceramic filter cartridges according to claim 1, characterized in that: The clamping ring is circular and is pressed onto the flange of the ceramic filter cartridge at the upper edge.

6. The special safety sealing and pressing device for high-temperature ceramic filter cartridges according to claim 1, characterized in that: The square tube beam is pressed onto the clamping ring, and its center coincides with that of the clamping ring.

7. The special safety sealing and pressing device for high-temperature ceramic filter cartridges according to claim 1, characterized in that: The ceramic filter cartridge is equipped with a venturi tube, the edge of which is fixed between the clamping ring and the flange of the filter cartridge.

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