CN201883079U - Arc crown sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly - Google Patents
Arc crown sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly Download PDFInfo
- Publication number
- CN201883079U CN201883079U CN2010206752822U CN201020675282U CN201883079U CN 201883079 U CN201883079 U CN 201883079U CN 2010206752822 U CN2010206752822 U CN 2010206752822U CN 201020675282 U CN201020675282 U CN 201020675282U CN 201883079 U CN201883079 U CN 201883079U
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- prefabricated section
- prefabricated block
- brick
- preheating
- preheating mouth
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Abstract
The utility model relates to an arc crown sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly, which has the advantages that a prefabricated block can be disassembled and assembled conveniently and the sealing effect is good. The arc crown sealing device comprises preheating mouth bricks. Furnace mouth bricks are installed on the annular horizontal platform of the preheating mouth bricks. The prefabricated block is arranged in the preheating mouth bricks. The vertical section of the prefabricated block is T-shaped. The prefabricated block comprises a horizontal part and a vertical part, wherein the horizontal part of the prefabricated block is arranged in the furnace mouth bricks and the vertical part of the prefabricated block is arranged in the preheating mouth bricks. An inverted-cone-shaped gap is formed between the prefabricated block and the preheating mouth bricks. Expandable graphite plates are connected with the inverted-cone-shaped gap between the prefabricated block and the preheating mouth bricks in a sealing way. Aluminum silicate refractory fiber packing is connected with a gap between the prefabricated block and the furnace mouth bricks in a sealing way and is closely wound on the external surface of the horizontal part of the prefabricated block. Refractory ceramic fiber cotton is connected with the upper surfaces of the prefabricated block and the furnace mouth bricks in a jointly sealing way. The arc crown sealing device is used for sealing the arc crown of a multi-nozzle opposed-type coal-water-slurry pressurized gasification furnace.
Description
Technical field
The utility model relates to a kind of tightness system, relates in particular to a kind of easy-to-mount vault tightness system of sintering adhesion that prevents.
Background technology
At present, the vault tightness system of multi-nozzle opposed type coal water slurry pressurized gasifier generally is made up of prefabricated section, preheating mouth brick and fire door brick, leave the back taper gap between prefabricated section and the preheating mouth brick, the back taper gap location adopts running fit, gap maximum even reach 2mm is filled with refractory ceramic fibre in the gap.Because the erosion action of high-temperature gas and vapourizing furnace slag is easy to cause prefabricated section and preheating mouth brick in the adhesion of back taper seam crossing, so during shutdown maintenance, the dismounting of prefabricated section is very inconvenient in startup procedure.In the process of removing, prefabricated section tends to break from working as, and the way that the staff has to take to destroy prefabricated section is smashed prefabricated section, to reach the purpose of taking out prefabricated section.This method for dismounting has prolonged furnace outage time, can cause furnace temperature to reduce usually, for making the vapourizing furnace works better baker again of many times having to, to reach the required furnace temperature that feeds intake, can bring bigger loss to enterprise like this.
In addition, because the sealing between prefabricated section and the preheating mouth brick mainly is positioned at the annular level table on preheating mouth brick top, sealing effectiveness is poor, and high temperature gas flow is easy to scurry into the space on prefabricated section top and causes the furnace roof overtemperature, makes troubles to production; In addition, adopt refractory fiber cotton to fill between prefabricated section top and the fire door brick, because the slit is less, stuffing operation is difficulty very, and has the unreal phenomenon of filling easily, causes this position the cavity to occur, sealing effectiveness is poor, causes sometimes to collaborate in the stove and cause the body of heater overtemperature.
Summary of the invention
The purpose of this utility model provide a kind of prefabricated section easy accessibility, obturation effect good prevent the easy-to-mount vault tightness system of sintering adhesion.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of easy-to-mount vault tightness system of sintering adhesion that prevents, comprise preheating mouth brick, on the annular level table of preheating mouth brick the fire door brick is installed, be provided with prefabricated section in the preheating mouth brick, the vertical cross section of prefabricated section is " T " font, prefabricated section comprises horizontal component and vertical part, the horizontal component of prefabricated section is positioned at the fire door brick, the vertical part of prefabricated section is positioned at preheating mouth brick, form the back taper gap between prefabricated section and the preheating mouth brick, it is characterized in that: the airtight expanded graphite plate that is connected with in the back taper gap between prefabricated section and the preheating mouth brick; The airtight aluminosilicate refractory fiber packing that is connected with in the gap between prefabricated section and the fire door brick, aluminosilicate refractory fiber packing compact winding is in the horizontal component outside of prefabricated section; The top common airtight refractory ceramic fibre cotton that is connected with of the top and fire door brick of prefabricated section.
The utility model changes prefabricated section into excessive the cooperation with tolerance clearance between the preheating mouth brick, and installed expanded graphite plate additional in the back taper gap between prefabricated section and preheating mouth brick, prefabricated section can be taken out in stove after blowing out smoothly, reduced the dismounting time of prefabricated section; Simultaneously; trim between prefabricated section and the preheating mouth brick is advanced to position in the most close stove; reduced the degree of depth that seals in of cindery intrusion and air-flow; filled the aluminosilicate refractory fiber packing in the gap between prefabricated section and fire door brick again; because the aluminosilicate refractory fiber packing is that the fixedly product of specification is arranged; can select the aluminosilicate refractory fiber packing of corresponding specification to seal according to the size in slit; so promptly saved filling time; stopped to occur the possibility in cavity again at this position; strengthen sealing effectiveness, played the better protection effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the accompanying drawing:
1, preheating mouth brick; 2, expanded graphite plate; 3, refractory ceramic fibre cotton; 4, fire door brick; 5, aluminosilicate refractory fiber packing; 6, prefabricated section.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
A kind of easy-to-mount vault tightness system of sintering adhesion that prevents, as shown in Figure 1, comprise preheating mouth brick 1, on the annular level table of preheating mouth brick 1 fire door brick 4 is installed, be provided with prefabricated section 6 in the preheating mouth brick 1, the vertical cross section of prefabricated section 6 is " T " font, prefabricated section 6 comprises horizontal component and vertical part, the horizontal component of prefabricated section 6 is positioned at fire door brick 4, the vertical part of prefabricated section 6 is positioned at preheating mouth brick 1, form back taper gap, the airtight expanded graphite plate 2 that is connected with in the back taper gap between prefabricated section 6 and the preheating mouth brick 1 between prefabricated section 6 and the preheating mouth brick 1; The airtight aluminosilicate refractory fiber packing 5 that is connected with in the gap between prefabricated section 6 and the fire door brick 4, aluminosilicate refractory fiber packing 5 compact winding are in the horizontal component outside of prefabricated section 6; The top common airtight refractory ceramic fibre cotton 3 that is connected with of the top and fire door brick 4 of prefabricated section 6 is with its compacting sealing.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design concept; common engineering technical personnel make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
The beneficial effects of the utility model are the sintering adhesions that effectively prevented prefabricated section and preheating mouth brick, strengthened the sealing effectiveness of vault hermetically-sealed construction, reduced the activity duration, be used as Multiinjector contraposition-type coal-water slurry pressurized gasifier vault sealing device, set up the thick expanded graphite plate of one deck 1mm in the back taper gap between prefabricated section and preheating mouth brick, expanded graphite plate separates prefabricated section and preheating mouth brick, because the fusing point very high (reaching 3850 degrees centigrade) of graphite, played the extraordinary effect that prevents adhesion, make prefabricated section very convenient when removing, greatly saved the repair time.
Claims (1)
1. one kind prevents the easy-to-mount vault tightness system of sintering adhesion, comprise preheating mouth brick (1), fire door brick (4) is installed on the annular level table of preheating mouth brick (1), be provided with prefabricated section (6) in the preheating mouth brick (1), the vertical cross section of prefabricated section (6) is " T " font, prefabricated section (6) comprises horizontal component and vertical part, the horizontal component of prefabricated section (6) is positioned at fire door brick (4), the vertical part of prefabricated section (6) is positioned at preheating mouth brick (1), form the back taper gap between prefabricated section (6) and the preheating mouth brick (1), it is characterized in that: the airtight expanded graphite plate (2) that is connected with in the back taper gap between prefabricated section (6) and the preheating mouth brick (1); The airtight aluminosilicate refractory fiber packing (5) that is connected with in the gap between prefabricated section (6) and the fire door brick (4), aluminosilicate refractory fiber packing (5) compact winding is in the horizontal component outside of prefabricated section (6); The top common airtight refractory ceramic fibre cotton (3) that is connected with of the top and fire door brick (4) of prefabricated section (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206752822U CN201883079U (en) | 2010-12-11 | 2010-12-11 | Arc crown sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206752822U CN201883079U (en) | 2010-12-11 | 2010-12-11 | Arc crown sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201883079U true CN201883079U (en) | 2011-06-29 |
Family
ID=44180616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206752822U Expired - Lifetime CN201883079U (en) | 2010-12-11 | 2010-12-11 | Arc crown sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201883079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010756A (en) * | 2010-12-11 | 2011-04-13 | 水煤浆气化及煤化工国家工程研究中心 | Vault sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly |
-
2010
- 2010-12-11 CN CN2010206752822U patent/CN201883079U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010756A (en) * | 2010-12-11 | 2011-04-13 | 水煤浆气化及煤化工国家工程研究中心 | Vault sealing device capable of preventing sintering adhesion and facilitating disassembly and assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |