CN-224215798-U - Rotary kiln barrel gasket device

Abstract

The application relates to a rotary kiln cylinder gasket device, which relates to the technical field of rotary kiln equipment and aims to solve the problem of short gasket abrasion service life, and comprises gasket bases arranged between a cylinder and an outer rolling ring, wherein the number of the gasket bases is multiple groups, the gasket bases are arrayed along the circumferential direction of the outer rolling ring, any be provided with a plurality of wear-resisting pieces on the gasket base all can dismantle, a plurality of the wear-resisting piece is all run through corresponding gasket base, any the surface of wear-resisting piece is provided with graphite coating, the distribution density of wear-resisting piece is positive gradient along the barrel axial on the gasket base and changes, wherein the wear-resisting piece distribution density in gasket base discharge end region is greater than gasket base feed end region. The application has the effect of effectively prolonging the service life of the gasket device.

Inventors

• MENG FANTING
• WAN BIAO
• Tu Jinjia

Assignees

• 中天钢铁集团(南通)有限公司
• 中天钢铁集团有限公司

Dates

Publication Date

20260508

Application Date

20250428

Claims (8)

1. 1. The rotary kiln cylinder gasket device is characterized by comprising gasket bases which are arranged between a cylinder and an outer rolling ring, wherein the gasket bases are in a plurality of groups, the gasket bases are arranged in an array along the circumferential direction of the outer rolling ring, a plurality of wear-resisting blocks are detachably arranged on any gasket base, the wear-resisting blocks penetrate through the corresponding gasket base, a graphite coating is arranged on the outer surface of any wear-resisting block, the distribution density of the wear-resisting blocks on the gasket base changes in a positive gradient along the axial direction of the cylinder, and the distribution density of the wear-resisting blocks in the discharge end area of the gasket base is larger than that in the feed end area of the gasket base.
2. 2. The rotary kiln cylinder gasket device of claim 1, wherein the gasket base is of a square plate-shaped structure, and the gasket base is made of wear-resistant metal plates.
3. 3. The rotary kiln cylinder gasket device of claim 2, wherein the gasket base is provided with two dovetail grooves, and the two dovetail grooves are respectively arranged on two sides of the gasket base in the width direction.
4. 4. The rotary kiln cylinder gasket device of claim 1, wherein any one of the wear-resistant blocks is provided with a threaded section, and the gasket base is provided with a plurality of threaded holes in a penetrating manner, wherein the threaded holes are matched with the threaded section.
5. 5. The rotary kiln cylinder gasket device of claim 4, wherein one end of any one of the wear blocks is provided with a hexagonal boss, and the hexagonal boss is pressed against the surface of the gasket base.
6. 6. A rotary kiln barrel gasket device as claimed in claim 1, wherein said graphite coating is disposed on the outermost layers at both ends of the wear blocks.
7. 7. A rotary kiln barrel gasket device as claimed in claim 6, wherein said graphite coating has a thickness in the range of 3mm to 5mm.
8. 8. A rotary kiln barrel gasket device as set forth in claim 1 wherein the thickness of any of said wear blocks comprises a base working layer and a redundant compensation layer, wherein the redundant compensation layer of said wear blocks comprises 20% to 35% of the total thickness.

Description

Rotary kiln barrel gasket device Technical Field The application relates to the technical field of rotary kiln equipment, in particular to a rotary kiln cylinder gasket device. Background In the operation of lime kiln equipment, the barrel gaskets play a critical role. Its core functions are mainly represented by three aspects of sealing, bearing and heat insulation. The sealing function can prevent leakage of high-temperature gas and dust in the kiln, ensure safety and stability of production environment, the bearing function ensures that the gasket can still keep structural integrity under the high-pressure environment in the kiln, maintain normal operation of equipment, and the heat insulation function effectively reduces dissipation of kiln heat and improves energy utilization efficiency. The lime kiln has extremely severe working conditions and high temperature and corrosion, and is a remarkable characteristic. In such circumstances, the currently prevailing gasket material is primarily Q345. The metal gasket has good high temperature resistance and chemical stability, is suitable for working conditions of high temperature and certain corrosion, and can maintain sealing performance in a long-time high-temperature environment. However, these materials also face many challenges in practical applications, such as the problem of abrasion of gaskets is increasingly prominent under long-term high-temperature and corrosive environments, which affects the service life and performance of the gaskets, so the development of novel abrasion-resistant lime kiln cylinder gaskets has urgent practical demands. Disclosure of utility model In order to solve the problem of short service life of gasket abrasion, the application provides a rotary kiln cylinder gasket device. The application provides a rotary kiln barrel gasket device which adopts the following technical scheme: The utility model provides a rotary kiln barrel gasket device, includes the gasket base that arranges between barrel and outer race, the quantity of gasket base is the multiunit, the multiunit gasket base is along outer race circumferencial direction array arrangement, arbitrary all can dismantle on the gasket base and be provided with a plurality of wear-resisting pieces, a plurality of the wear-resisting piece all runs through corresponding gasket base, arbitrary the surface of wear-resisting piece is provided with graphite coating, the distribution density of wear-resisting piece is positive gradient along the barrel axial on the gasket base and changes, wherein the wear-resisting piece distribution density in gasket base discharge end region is greater than gasket base feed end region. By adopting the technical scheme, the gasket device comprises a plurality of groups of gasket bases, wherein the gasket bases are arranged between a cylinder body and an outer rolling ring, a plurality of wear-resistant blocks are detachably arranged on the gasket bases, and meanwhile, the distribution density of the wear-resistant blocks in the discharge end area of the gasket bases is larger than that in the feed end area of the gasket bases; When the lime kiln equipment runs, the cylinder starts to rotate, the materials are calcined at high temperature and chemically reacted in the kiln, at the moment, the gasket base of the novel gasket device is connected with the cylinder and the outer rolling ring, and the wear-resisting blocks distributed on the gasket base directly bear the test of multiple severe working conditions such as material friction, high temperature and corrosion, and the density of the wear-resisting blocks is increased in the serious wear-resisting areas such as the discharge end due to the novel gasket device, the wear-resistant blocks made of the high-wear-resistance graphite materials can effectively resist high temperature, corrosion and friction, so that the wear speed is greatly slowed down, meanwhile, the self-lubricity of the graphite materials also reduces the friction coefficient between the wear-resistant blocks and the cylinder body and the outer rolling ring, the wear is further reduced, even if part of the wear-resistant blocks reach the replacement standard due to long-term wear, operators do not need to stop to replace the whole gasket, and only the worn wear-resistant blocks are detached from the gasket base simply and new wear-resistant blocks are installed; Through setting up such as gasket base, wear-resisting piece, graphite coating, the wear-resisting piece of dismantlement and structure such as graphite coating on wear-resisting piece surface have ingenious solved the gasket and have worn serious problem under long-term high temperature, corrosion environment, the high density design of its discharge end region wear-resisting piece for the wear-resisting piece that high wear-resisting graphite material made can effectively resist abominable operating mode, slow down wear rate greatly, graphite material's self-lubricating