CN203286884U - Kiln tail sealing structure of lime rotary kiln - Google Patents
Kiln tail sealing structure of lime rotary kiln Download PDFInfo
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- CN203286884U CN203286884U CN2013202271047U CN201320227104U CN203286884U CN 203286884 U CN203286884 U CN 203286884U CN 2013202271047 U CN2013202271047 U CN 2013202271047U CN 201320227104 U CN201320227104 U CN 201320227104U CN 203286884 U CN203286884 U CN 203286884U
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- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 16
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 16
- 239000004571 lime Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 230000003064 anti-oxidating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
本实用新型公开了一种石灰回转窑窑尾密封结构，包括筒体和密封筒节，筒体包括直筒节和锥筒节，密封筒节通过一块端板与锥筒节固定连接；端板的一端通过第一筋板、第二筋板与密封筒节固定连接，其另一端通过第三筋板与锥筒节固定连接。本实用新型的有益效果如下：通过将筒体与密封筒节之间传统的螺栓连接方式改为一体式连接结构，减少了连接处开裂问题的发生，避免窑尾浇注料脱落，减少窑尾维修次数，增加窑尾使用寿命；通过改进密封筒节的材质，提高了密封筒节的耐氧化性，从而避免了其在高温环境下的氧化变形，增加密封筒节使用寿命，降低检修费用，缩短检修时间，提高白灰的产量和企业的经济效益。
The utility model discloses a sealing structure for the kiln tail of a lime rotary kiln, which comprises a cylinder body and a sealing cylinder section. The cylinder body includes a straight cylinder section and a cone cylinder section. One end is fixedly connected to the sealing cylinder section through the first rib plate and the second rib plate, and the other end is fixedly connected to the cone cylinder section through the third rib plate. The beneficial effects of the utility model are as follows: by changing the traditional bolt connection between the cylinder body and the sealing cylinder joint into an integrated connection structure, the occurrence of cracking at the joint is reduced, the castable material at the kiln tail is prevented from falling off, and the maintenance of the kiln tail is reduced times, increase the service life of the kiln tail; by improving the material of the sealing cylinder section, the oxidation resistance of the sealing cylinder section is improved, thereby avoiding its oxidation deformation in high temperature environment, increasing the service life of the sealing cylinder section, reducing maintenance costs, shortening Maintenance time is reduced, the production of lime and the economic benefit of the enterprise are improved.
Description
技术领域 technical field
本实用新型涉及石灰回转窑技术领域。 The utility model relates to the technical field of lime rotary kiln.
背景技术 Background technique
回转窑是白灰生产最主要的设备，回转窑窑尾的结构为：密封筒节+筒体+连接螺栓+锚固钩+耐火料结构。如图1所示，筒体包括两部分，分别为直筒节1和锥筒节2，直筒节1和锥筒节2由同一块钢板卷制而成；密封筒节7由另一块钢板卷制而成；密封筒节7通过端板4、连接螺栓8与锥筒节2连接，其中端板4分为两块，其中一块端板与锥筒节2焊接，另一块端板与密封筒节7焊接，两块端板之间通过连接螺栓8固定连接，这样就能将密封筒节7与筒体固定连接。
The rotary kiln is the most important equipment for lime production. The structure of the kiln tail of the rotary kiln is: sealed cylinder section + cylinder body + connecting bolt + anchor hook + refractory structure. As shown in Figure 1, the cylinder body consists of two parts, namely the straight cylinder section 1 and the
窑尾筒节是回转窑筒体的主要部件，用于窑尾密封，减少窑尾漏料。生产过程中，由于回转窑窑尾的密封筒节工作在1100℃的高温环境下，密封筒节容易被氧化变形，密封筒节与筒体的连接螺栓易松动，窑尾的浇注料易脱落，从而导致窑尾使用寿命缩短。每年需要停机两到三次，来拆除窑尾的部分浇注料，焊接加固密封筒节及筒体，每两年需要更换一次新的窑尾密封筒节，并且在更换新组件期间需要停工，长时间的停工将大大影响白灰产量，降低生产效率；平均每年的修理费用约80万元，这样无形中增加了生产成本和企业负担，该问题也是白灰行业的共性问题。 The kiln tail section is the main part of the rotary kiln body, which is used for sealing the kiln tail and reducing material leakage at the kiln tail. During the production process, since the sealing cylinder section at the kiln tail of the rotary kiln works in a high temperature environment of 1100°C, the sealing cylinder section is easily oxidized and deformed, the connecting bolts between the sealing cylinder section and the cylinder body are easy to loose, and the castable at the kiln tail is easy to fall off. As a result, the service life of the kiln tail is shortened. It needs to be shut down two to three times a year to remove part of the pouring material at the kiln tail, weld and strengthen the sealing cylinder section and the cylinder body, and need to replace the new kiln tail sealing cylinder section every two years, and it needs to be shut down during the replacement of new components, which takes a long time The shutdown will greatly affect the lime production and reduce production efficiency; the average annual repair cost is about 800,000 yuan, which virtually increases the production cost and corporate burden. This problem is also a common problem in the lime industry.
实用新型内容 Utility model content
本实用新型所要解决的技术问题是提供一种能够减少窑尾密封筒节与筒体连接处断裂问题发生、增加窑尾使用寿命的石灰回转窑窑尾密封结构。 The technical problem to be solved by the utility model is to provide a lime rotary kiln kiln tail sealing structure which can reduce the breakage of the kiln tail sealing cylinder joint and the cylinder body and increase the service life of the kiln tail.
为解决上述技术问题，本实用新型所采取的技术方案是： In order to solve the problems of the technologies described above, the technical solution adopted by the utility model is:
一种石灰回转窑窑尾密封结构，包括筒体和密封筒节，筒体包括直筒节和锥筒节，密封筒节通过一块端板与锥筒节固定连接。 A lime rotary kiln tail sealing structure includes a cylinder body and a sealing cylinder section. The cylinder body includes a straight cylinder section and a cone cylinder section. The seal cylinder section is fixedly connected to the cone cylinder section through an end plate.
端板的一端通过第一筋板、第二筋板与密封筒节固定连接，其另一端通过第三筋板与锥筒节固定连接。 One end of the end plate is fixedly connected with the sealing cylinder section through the first rib plate and the second rib plate, and the other end is fixedly connected with the cone cylinder section through the third rib plate.
所述密封筒节的材质为Gr25Ni20。 The material of the sealing cylinder section is Gr 25 Ni 20 .
所述直筒节和锥筒节为同一块钢板卷制而成；所述第一筋板、第二筋板与密封筒节之间以及第三筋板与锥筒节之间的固定连接方式均为坡口双面焊，焊条为耐热钢防裂防氧化焊条，焊缝高度不得低于15mm。 The straight cylinder section and the cone cylinder section are rolled from the same steel plate; the fixed connections between the first rib plate, the second rib plate and the sealing cylinder section, and between the third rib plate and the cone cylinder section are all For double-sided groove welding, the electrode is heat-resistant steel anti-crack and anti-oxidation electrode, and the weld height must not be less than 15mm.
采用上述技术方案所产生的有益效果在于： The beneficial effects produced by adopting the above-mentioned technical scheme are:
（1）通过将筒体与密封筒节之间传统的螺栓连接方式改为一体式连接结构，减少了连接处开裂问题的发生，避免窑尾浇注料脱落，减少窑尾维修次数，增加窑尾使用寿命。 (1) By changing the traditional bolted connection between the cylinder body and the sealed cylinder section into an integrated connection structure, the occurrence of cracking at the joint is reduced, the castable material at the kiln tail is prevented from falling off, the number of maintenance at the kiln tail is reduced, and the kiln tail is increased. service life.
（2）通过将所有对接处采用打坡口双面焊接方式进行连接，焊条采用耐热钢防裂防氧化焊条，使得焊缝光滑平整、无气孔、夹渣、裂纹、未焊透等缺陷。 (2) All the butt joints are connected by double-sided welding with bevelling, and the welding rods are anti-crack and anti-oxidation electrodes of heat-resistant steel, so that the welds are smooth and flat, without defects such as pores, slag inclusions, cracks, and incomplete penetration.
（3）通过改进密封筒节的材质，提高了密封筒节的耐氧化性，从而避免了其在高温环境下的氧化变形，增加密封筒节使用寿命，降低检修费用，缩短检修时间，提高白灰的产量和企业的经济效益。 (3) By improving the material of the sealing cylinder section, the oxidation resistance of the sealing cylinder section is improved, thereby avoiding its oxidation deformation in high temperature environment, increasing the service life of the sealing cylinder section, reducing maintenance costs, shortening maintenance time, and improving lime output and economic benefits of the enterprise.
附图说明 Description of drawings
下面结合附图和具体实施方式对本实用新型作进一步详细的说明。 Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
图1是改进前窑尾密封结构示意图； Figure 1 is a schematic diagram of the sealing structure of the improved front kiln tail;
图2是改进后本实用新型所述的窑尾密封结构示意图； Fig. 2 is a schematic diagram of the sealing structure of the kiln tail described in the utility model after improvement;
其中，1、直筒节，2、锥筒节，3、第一筋板，4、端板，5、第二筋板，6、第三筋板，7、密封筒节，8、连接螺栓。 Among them, 1. Straight cylinder section, 2. Cone cylinder section, 3. First rib plate, 4. End plate, 5. Second rib plate, 6. Third rib plate, 7. Sealing cylinder section, 8. Connecting bolts.
具体实施方式 Detailed ways
如图2所示的实施例可知，本实用新型所述的石灰回转窑窑尾密封结构，包括筒体和密封筒节7，筒体包括直筒节1和锥筒节2，密封筒节7通过一块端板4与锥筒节2固定连接。端板4的一端通过第一筋板3、第二筋板5与密封筒节7固定连接，其另一端通过第三筋板6与锥筒节2固定连接。
As can be seen from the embodiment shown in Figure 2, the lime rotary kiln kiln tail sealing structure described in the utility model includes a cylinder body and a
所述密封筒节7的材质为Gr25Ni20。
The sealing
所述直筒节1和锥筒节2为同一块钢板卷制而成；所述第一筋板3、第二筋板5与密封筒节7之间以及第三筋板6与锥筒节2之间的固定连接方式均为坡口双面焊，焊条为耐热钢防裂防氧化焊条，焊缝高度不得低于15mm。
The straight cylinder section 1 and the
通过将筒体与密封筒节之间传统的螺栓连接方式改为一体式连接结构，减少了连接处开裂问题的发生，避免窑尾浇注料脱落，减少窑尾维修次数，增加窑尾使用寿命。 By changing the traditional bolted connection between the cylinder body and the sealed cylinder section into an integral connection structure, the occurrence of cracking at the joint is reduced, the castable at the kiln tail is prevented from falling off, the maintenance times of the kiln tail are reduced, and the service life of the kiln tail is increased.
通过将所有对接处采用打坡口双面焊接方式进行连接，焊条采用耐热钢防裂防氧化焊条，使得焊缝光滑平整、无气孔、夹渣、裂纹、未焊透等缺陷。 All the butt joints are connected by double-sided welding with grooves, and the welding rods are heat-resistant steel anti-crack and anti-oxidation electrodes, so that the welds are smooth and flat, without defects such as pores, slag inclusions, cracks, and incomplete penetration.
通过改进密封筒节的材质，提高了密封筒节的耐氧化性，从而避免了其在高温环境下的氧化变形，增加密封筒节使用寿命，降低检修费用，缩短检修时间，提高白灰的产量和企业的经济效益。 By improving the material of the sealing cylinder section, the oxidation resistance of the sealing cylinder section is improved, thereby avoiding its oxidation deformation in high temperature environment, increasing the service life of the sealing cylinder section, reducing the maintenance cost, shortening the maintenance time, and increasing the output of lime ash and economic benefits of the enterprise. the
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202271047U CN203286884U (en) | 2013-04-28 | 2013-04-28 | Kiln tail sealing structure of lime rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202271047U CN203286884U (en) | 2013-04-28 | 2013-04-28 | Kiln tail sealing structure of lime rotary kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123577A (en) * | 2016-08-12 | 2016-11-16 | 新兴铸管股份有限公司 | A kind of lime kiln tail seals structure |
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2013
- 2013-04-28 CN CN2013202271047U patent/CN203286884U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123577A (en) * | 2016-08-12 | 2016-11-16 | 新兴铸管股份有限公司 | A kind of lime kiln tail seals structure |
| CN106123577B (en) * | 2016-08-12 | 2018-08-10 | 新兴铸管股份有限公司 | A kind of lime kiln tail sealing structure |
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Granted publication date: 20131113 |