CN212469153U - Carbide furnace inner wall deposit cleaning device, low temperature carbide furnace - Google Patents
Carbide furnace inner wall deposit cleaning device, low temperature carbide furnace Download PDFInfo
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- CN212469153U CN212469153U CN202021311435.5U CN202021311435U CN212469153U CN 212469153 U CN212469153 U CN 212469153U CN 202021311435 U CN202021311435 U CN 202021311435U CN 212469153 U CN212469153 U CN 212469153U
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Abstract
The utility model provides a carbide furnace inner wall deposit thing cleaning device, low temperature carbide furnace. Wherein carbide furnace inner wall deposit cleaning device, including air current cleaning unit, junk transportation unit, air current cleaning unit is in carbide furnace intracavity and will with utilizing pressure air current the deposit of carbide furnace inner wall blows off, junk transportation unit is in air current cleaning unit's below is used for accepting the deposit of air current cleaning unit clearance and will fall the thing by carry in the carbide furnace intracavity extremely outside the carbide furnace chamber. According to the utility model discloses a carbide furnace inner wall deposit thing cleaning device, low temperature carbide furnace adopt the air current cleaning unit to clear up carbide furnace inner wall deposit thing, need not to produce mechanical contact with the stove inner wall, and then effectively prevent among the prior art probably to the harm that the stove inner wall caused when clearing up the stove inner wall, effectively improve the cleaning efficiency of stove inner wall deposit thing, guarantee the high-efficient operation of carbide furnace.
Description
Technical Field
The utility model belongs to the technical field of carbon fiber production makes, concretely relates to carbide furnace inner wall deposit cleaning device, low temperature carbide furnace.
Background
In the production process of carbon fibers, pre-oxidized fibers are subjected to thermal decomposition reaction in a low-temperature carbonization furnace to produce a large amount of waste gas, tar and carbon powder, the waste gas enters an incinerator under the action of a waste discharge fan to be incinerated along with the production time, but the carbon powder can be gathered on the inner wall of the low-temperature carbonization furnace, particularly on the top of the furnace to form deposits under the action of the tar. After the deposit reaches a certain thickness, the uniformity of the original temperature field in the furnace is influenced on one hand, and on the other hand, if the deposit falls off, the deposit is adhered to the surface of the running tows to cause fiber defects. The clearance aspect to the useless solid thing of carbide furnace exhaust gas line has aroused comparatively extensive attention among the prior art, and in the carbide furnace especially the clearance aspect of stove inner wall adopt comparatively traditional clearance mode to realize at present more, for example use the iron rake to clear the stove when carbide furnace parks, can cause following several aspects problems like this: firstly, because the low-temperature carbonization furnace is long, a plurality of dead zones exist and are difficult to clean, and a large amount of manpower and material resources are consumed, but the cleaning effect is not ideal; secondly, scrape the life who sweeps furnace wall greatly reduced furnace repeatedly when clearing the stove, based on the aforesaid among the prior art not enough, propose the utility model discloses.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in providing a carbide furnace inner wall deposit thing cleaning device, low temperature carbide furnace, adopt the air current cleaning unit to clear up carbide furnace inner wall deposit thing, need not to produce mechanical contact with the stove inner wall, and then effectively prevent among the prior art probably to the harm that the stove inner wall caused when clearing up the stove inner wall, effectively improve the cleaning efficiency of stove inner wall deposit thing, guarantee the high-efficient operation of carbide furnace.
In order to solve the problem, the utility model provides a carbide furnace inner wall deposit thing cleaning device, transport the unit including air current cleaning unit, junk, air current cleaning unit is in the carbide furnace intracavity will with utilizing the pressure air current carbide furnace inner wall's deposit blows off, junk transport unit is in the below of air current cleaning unit is used for accepting the deposit of air current cleaning unit clearance and with the junk by carry in the carbide furnace intracavity extremely outside the carbide furnace chamber.
Preferably, the air flow cleaning unit comprises an air flow distribution main pipe, the air flow distribution main pipe extends along the length direction of the carbonization furnace, and a plurality of spray heads are arranged on the air flow distribution main pipe at intervals.
Preferably, a plurality of the spray heads are swingable about an extending direction of the air flow distribution trunk.
Preferably, the gas flow distribution main pipe can be driven to reciprocate along the length direction of the carbonization furnace.
Preferably, the drop transfer unit includes a conveyor belt capable of being driven to circularly move horizontally along a length direction of the carbonization furnace.
Preferably, the drop transfer unit further comprises a driving member drivingly connected to at least one of the plurality of tensioning guide members, and a plurality of tensioning guide members, the conveyor belt being connected around the outside of the plurality of tensioning guide members in a tensioning manner.
Preferably, the carbide furnace inner wall sediment cleaning device further comprises a falling object collecting component, and the falling object collecting component is used for collecting falling objects on the conveying belt.
Preferably, the junk collecting means comprises a vacuum collecting means having a negative pressure suction port disposed adjacent to the conveyor belt; alternatively, the drop collecting member comprises a collecting container, which is in the discharge position of the conveyor belt.
Preferably, when the drop collecting member comprises a vacuum collecting member, the conveyor belt is at an upper region of a tow passage of the carbonization furnace.
The utility model also provides a low temperature carbide furnace, including foretell carbide furnace inner wall deposit cleaning device.
The utility model provides a pair of carbide furnace inner wall deposit thing cleaning device, low temperature carbide furnace, airflow cleaning unit adopts high-pressure draught to clear up the interior deposit thing of stove, can need not to produce the clearance that mechanical contact can realize the deposit with the stove inner wall as in prior art, and this can effectively prevent among the prior art probably to the harm that the stove inner wall caused when clearing up the stove inner wall, and outside the junk transport unit then can in time transport the junk that the stove inner wall cleared up to the carbide furnace chamber, and then effectively improved the cleaning efficiency of stove inner wall deposit thing, guaranteed the high-efficient operation of carbide furnace.
Drawings
Fig. 1 is a schematic structural view of an assembled carbide furnace and a device for cleaning sediments on the inner wall of the carbide furnace according to an embodiment of the present invention;
fig. 2 is an example of the relative positions of the air flow cleaning unit, the tows and the conveyor belt in fig. 1.
The reference numerals are represented as:
11. an air flow distribution trunk; 12. a spray head; 13. a gas flow introduction line; 14. a control valve; 21. a conveyor belt; 22. a drive member; 23. a tension guide member; 31. a falling object collecting member; 100. a carbonization furnace; 101. a support; 102. and (4) carrying out silk bundle.
Detailed Description
Referring to fig. 1 to 2 in combination, according to the embodiment of the present invention, a carbide furnace inner wall sediment cleaning device is provided, including an air flow cleaning unit and a falling object transferring unit, the air flow cleaning unit is located in a 100 furnace cavity of a carbide furnace to blow down the sediment of the carbide furnace inner wall (especially, the top wall and the side wall) by using pressure air flow, and the falling object transferring unit is located below the air flow cleaning unit and is used for receiving the sediment cleaned by the air flow cleaning unit and conveying the falling object out of the furnace cavity of the carbide furnace from the furnace cavity of the carbide furnace. The airflow cleaning unit cleans sediments in the cleaning furnace by adopting high-pressure airflow, can realize cleaning of the sediments without mechanical contact with the inner wall of the furnace as in the prior art, can effectively prevent damage possibly caused to the inner wall of the furnace when the inner wall of the furnace is cleaned in the prior art, and the falling object transferring unit can timely transfer the falling objects cleaned off the inner wall of the furnace to the furnace chamber of the carbonization furnace, so that the cleaning efficiency of the sediments on the inner wall of the furnace is effectively improved, and the efficient operation of the carbonization furnace is ensured. For the carbonization furnace of the present invention, since the filament bundle 102 is operated and carbonized therein, the best high pressure gas flow is gas such as nitrogen which is not easy to react with the filament bundle 102 operated therein under high temperature environment, at this time, it can be ensured that the deposit on the inner wall of the furnace chamber can be cleaned while the carbonization furnace 100 is normally operated, that is, the filament bundle 102 can be carbonized, and the efficiency is higher; it can be understood that, in some cases, the high-pressure gas flow may also be some other high-pressure gas flows (e.g., high-pressure air), and at this time, the high-temperature stability of the high-pressure gas flow is not needed to be considered, but only the high pressure of the high-pressure gas flow needs to be ensured (the high pressure here is used to ensure that most of the deposits on the inner wall of the furnace can be blown off, and specifically can be obtained through experiments), but at this time, the corresponding operation should be performed when the carbonization furnace is stopped, that is, at this time, the carbonization furnace 100 is in a non-high-temperature state, which can reduce the use cost of the apparatus compared.
The gas flow cleaning unit may be implemented, for example, by using its gas flow nozzle assembly that is movable within the furnace chamber of the carbonization furnace 100, i.e., when cleaning, the gas flow cleaning unit may be located within the furnace chamber, when the cleaning is finished, the gas flow cleaning unit can be withdrawn from the carbonization furnace 100, that is, the gas flow cleaning unit is not fully in the carbonization furnace 100, and, as a more preferred embodiment, the airflow cleaning unit comprises an airflow distribution main 11, the air distribution main pipe 11 extends along the length direction of the carbonization furnace, a plurality of spray heads 12 are arranged on the air distribution main pipe 11 at intervals, namely the air distribution main pipe 11 is erected between a tow inlet and a tow outlet of the furnace chamber, and extends along the length direction of the filament bundle 102, and a plurality of spray heads 12 arranged at intervals are respectively arranged aiming at the inner wall of the furnace chamber. Airflow distribution main pipe 11 adopts high temperature resistant stainless steel (the trade mark can be 310S, 316 for example) steel pipe preparation to form, and is equally reasonable, shower nozzle 12 also preferably adopt with the same material preparation of airflow distribution main pipe 11 forms, adopts the cost of manufacture of this kind of mode reducing device on the one hand, and on the other hand then need not frequently to the silk bundle import of carbide furnace and export corresponding position dismantle, can also effectively prevent because the business turn over of airflow cleaning unit the silk bundle import and the sealed inefficacy of export or the leakproofness reduction phenomenon that leads to of frequent dismantlement that the carbide furnace chamber brought take place when convenient.
Preferably, a plurality of the nozzles 12 can swing around the extending direction of the air distribution trunk 11, so as to maximize the area coverage of the inner cavity (left and right sides of the running direction of the filament bundle) of the carbonization furnace, and further improve the sediment cleaning capability of the air cleaning unit, it can be understood that, at this time, the swinging of the nozzles 12 will be realized by the driving of the corresponding driving structure, and it will be difficult to realize the motor driving manner for the high temperature environment (approximately 600 ℃ -800 ℃) of the carbonization furnace 100 in running, so, as a feasible implementation manner, the driving structure preferably adopts the mechanical driving manner of the connecting rod, that is, one end of the swinging connecting rod is mechanically connected with the nozzles 12, the other end of the swinging connecting rod is outside the furnace cavity of the carbonization furnace 100, and the corresponding bellows is arranged between the nozzles 12 and the air distribution trunk 11, so as to ensure that the spray head 12 can swing relative to the air distribution main pipe 11 when the swing connecting rod is driven (driven by external manpower or an actuating mechanism such as a motor). Further, the air distribution main pipe 11 can be driven to follow the length direction reciprocating motion of the carbonization furnace 100 to can realize the regional coverage maximization in the tow traffic direction, equally reason, the air distribution main pipe 11 is erect and is in respectively on the tow import department of carbonization furnace and the linear bearing support in exit, still including promoting the connecting rod, promote the one end of connecting rod with the air distribution main pipe 11 is connected, and the other end is then for the end of exerting force, can understand, it is in to promote the connecting rod at least the end of exerting force the furnace chamber outside of carbonization furnace 100, in order to promote when needs the promotion connecting rod is in order to realize the horizontal reciprocating motion of air distribution main pipe 11. One end of the air flow distribution main pipe 11 is connected with an air flow introducing pipeline 13 in a through manner, the air flow introducing pipeline 13 is provided with a corresponding control valve 14 to control the flow of high-pressure air flow therein, and the air flow introducing pipeline 13 is connected with a high-pressure air source to realize the introduction of pressure source fluid.
As an embodiment of the falling object transfer unit, preferably, the falling object transfer unit includes a conveyor belt 21, the conveyor belt can be driven to circularly and horizontally move along the length direction of the carbonization furnace 100, it can be understood that the conveyor belt 21 has a falling object receiving position inside the furnace cavity and a falling object discharging position outside the furnace cavity, the conveyor belt 21 is preferably made of carbon fiber fabric, and the width of the conveyor belt 21 is approximately the same as the width of the furnace cavity of the carbonization furnace 100, so as to ensure the receiving efficiency of the falling object. Further, the falling object transferring unit further includes a driving member 22 and a plurality of tensioning guide members 23 (guiding rollers), the driving member 22 is in driving connection with at least one of the tensioning guide members 23, the conveying belt 21 is connected to the outer sides of the tensioning guide members 23 in a surrounding and tensioning manner, the driving member 22 (implemented by using a rotary motor, an air motor or a hydraulic motor, for example) drives at least one of the tensioning guide members 23 to rotate, and the remaining tensioning guide members 23 serve as driven rollers to support the conveying belt 21 in a tensioning manner, so as to ensure that the conveying belt 21 can horizontally and circularly move linearly.
The cleaning device for the sediment on the inner wall of the carbonization furnace further comprises a sediment collecting part 31, the sediment collecting part 31 is used for collecting the sediment on the conveying belt 21, in particular, for example, the sediment collecting part 31 comprises a vacuum collecting part (not shown in the figure), the negative pressure suction port of the vacuum collecting part is arranged adjacent to the conveying belt 21, when the scheme is adopted, namely when the sediment collecting part 31 comprises the vacuum collecting part, the conveying belt 21 is positioned at the upper area of the tow channel of the carbonization furnace, at the moment, the conveying belt 21 is positioned at the upper area of the tow 102, so that the sediment on the inner wall of the carbonization furnace 100 can be cleaned in the operation process of the tow carbonization, namely the operation of the carbonization furnace 100, and the sediment can not be blown to fall on the running tow 102 to cause the defect of the carbon fiber, namely, the cleaning device can run synchronously with the carbonization process of the carbon fiber tow 102, the cleaning efficiency and the economy are greatly ensured; as another possible technical solution, the falling material collecting member 31 includes a collecting container (e.g. a slag collecting tray) at the discharging position of the conveyor belt 21, in which the dirt on the conveyor belt 21 is thrown by gravity and the running speed of the conveyor belt 21, it is understood that, when this solution is adopted, the conveyor belt 21 is preferably arranged at the lower region of the tow passage (e.g. the conveyor belt 21 is about 5mm from the bottom wall of the carbonization furnace 100) to achieve the corresponding arrangement of the collecting container and the discharging position of the conveyor belt 21, and it is understood that, in the process of cleaning the deposit, the carbonization furnace 100 should be stopped to prevent the possible damage to the tow 102 during the cleaning process. It should be further noted that, for the case of using the vacuum collection component, the top of the conveyer belt 21 is used as the falling object carrying surface, the negative pressure suction port of the vacuum collection component 31 is located in the corresponding area of the falling object carrying surface, so that the falling object is absorbed and collected before being conveyed to the discharging position, the vacuum collection component uses the venturi effect to realize the remote conveying of the falling object, the structural layout of the cleaning device can be greatly optimized, and it can be understood that the air source of the vacuum collection component can be the same as that of the air source of the airflow cleaning unit of the present invention, or can be different.
The embodiment of the utility model provides a low temperature carbonization furnace is still provided, including foretell carbonization furnace stove inner wall deposit cleaning device.
Specific examples are given below to further illustrate the technical solution of the present invention.
Example 1:
the guide roller connected with the motor is driven by the motor to operate to drive the carbon fiber fabric (conveyer belt) to circularly operate along the horizontal direction, and the carbon fiber fabric in the furnace chamber is positioned at the lower part of the plane of the running fiber tows. A slag collecting pan is placed near the guide roller at the entrance of the carbonization furnace. The left side and the right side of the low-temperature carbonization furnace are respectively provided with a nitrogen gas blowing pipe (spray head) with the diameter of 30mm, a phi 10mm round hole is arranged at intervals of 30mm in the length direction of the nitrogen gas blowing pipe (air flow distribution main pipe), and all round holes are positioned on the same horizontal line. The end part of the nitrogen gas blowing pipe is in flexible connection and can be rotated to adjust the included angle between the gas blowing pipe and the furnace top, and the gas consumption of each path of nitrogen in the embodiment is 30Nm3And h, the blowing angle range is 0-30 degrees, the sediment blown from the furnace top is taken out of the furnace and enters a waste residue collecting disc, and the running speed of the corresponding carbon fiber fabric is selected to be 4 m/min.
Example 2:
the present embodiment is the same as embodiment 1 in arrangement and operation principle, and the difference is that: two nitrogen gas blowing pipes are arranged inside the furnace chamber of the low-temperature carbonization furnace along the left side and the right side of the direction of the tows, and the consumption of each nitrogen gas is 15Nm3And h, the purging angle range is 0-60 degrees.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a carbide furnace inner wall deposit cleaning device, its characterized in that, transports the unit including air current cleaning unit, junk, air current cleaning unit is in carbide furnace (100) furnace chamber and will with utilizing pressure air current the deposit of carbide furnace inner wall blows off, junk transport the unit and is in the below of air current cleaning unit is used for accepting the deposit of air current cleaning unit clearance and with the junk by carry in the carbide furnace chamber extremely outside the carbide furnace chamber.
2. The cleaning device according to claim 1, characterized in that the gas flow cleaning unit comprises a gas flow distribution main pipe (11), the gas flow distribution main pipe (11) extends along the length direction of the carbonization furnace, and a plurality of spray heads (12) are arranged on the gas flow distribution main pipe (11) at intervals.
3. Cleaning device according to claim 2, characterized in that a plurality of spray heads (12) can be swung around the direction of extension of the air distribution main (11).
4. The cleaning apparatus according to claim 2, characterized in that the gas flow distribution main (11) is drivable in a reciprocating motion along the length direction of the carbonization furnace (100).
5. The cleaning apparatus according to any of claims 1 to 4, characterized in that the drop transfer unit comprises a conveyor belt (21) which can be driven in a circulating horizontal movement along the length direction of the carbonization furnace (100).
6. The cleaning device as claimed in claim 5, characterized in that the drop transport unit further comprises a drive member (22) and a plurality of tensioning guide members (23), the drive member (22) being in driving connection with at least one of the plurality of tensioning guide members (23), the conveyor belt (21) being connected in tension around the outside of the plurality of tensioning guide members (23).
7. The cleaning device as claimed in claim 6, characterized by further comprising a drop collecting member (31), the drop collecting member (31) being adapted to collect drops on the conveyor belt (21).
8. A cleaning device as claimed in claim 7, characterized in that the drop collecting member (31) comprises a vacuum collecting member, the negative pressure suction opening of which is arranged adjacent to the conveyor belt (21); alternatively, the drop collecting member (31) comprises a collecting container, which is in a discharge position of the conveyor belt (21).
9. The cleaning device according to claim 8, characterized in that the conveyor belt (21) is in an upper region of a strand channel of the carbonization furnace when the drop collecting member (31) comprises a vacuum collecting member.
10. A low-temperature carbonization furnace, comprising a device for cleaning deposits on the inner wall of the carbonization furnace, characterized in that the device for cleaning deposits on the inner wall of the carbonization furnace is the device for cleaning deposits on the inner wall of the carbonization furnace according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021311435.5U CN212469153U (en) | 2020-07-07 | 2020-07-07 | Carbide furnace inner wall deposit cleaning device, low temperature carbide furnace |
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| CN202021311435.5U CN212469153U (en) | 2020-07-07 | 2020-07-07 | Carbide furnace inner wall deposit cleaning device, low temperature carbide furnace |
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| CN212469153U true CN212469153U (en) | 2021-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790704A (en) * | 2020-07-07 | 2020-10-20 | 山西钢科碳材料有限公司 | Carbide furnace inner wall deposit cleaning device, low temperature carbide furnace |
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2020
- 2020-07-07 CN CN202021311435.5U patent/CN212469153U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790704A (en) * | 2020-07-07 | 2020-10-20 | 山西钢科碳材料有限公司 | Carbide furnace inner wall deposit cleaning device, low temperature carbide furnace |
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