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CN-224230649-U - Novel sealing structure for rotary ammonium furnace and rotary ammonium furnace

CN224230649UCN 224230649 UCN224230649 UCN 224230649UCN-224230649-U

Abstract

The utility model relates to a novel sealing structure for a rotary ammonium furnace and the rotary ammonium furnace, which belong to the technical field of rotary equipment sealing, and comprise a first mounting ring and a second mounting ring, wherein the top of the first mounting ring is higher than that of the second mounting ring, and an outer fish scale sealing assembly and an inner fish scale sealing assembly are arranged on the first mounting ring and respectively contacted with the top of the second mounting ring and the outer surface of a rotary cylinder body to realize double sealing. And a spring compression assembly is arranged on the second mounting ring, and the thermal expansion and movement change of the cylinder body are adapted by adjusting the sealing contact force. In addition, the joint of the rotary cylinder body, the feeding end and the discharging end is provided with a labyrinth type sealing structure which consists of mutually staggered convex rings with different radiuses and is provided with a sealing layer to prolong the leakage path. The utility model has good sealing performance, wear resistance and adjustment adaptability through the combination of the multi-layer fish scale seal, the labyrinth seal and the compression assembly, and effectively improves the reliability and the service life of equipment.

Inventors

  • DU XIANGXIN
  • LI ZHENGGUO
  • WEI JIANJUN

Assignees

  • 连云港碱业有限公司

Dates

Publication Date
20260512
Application Date
20250225

Claims (10)

  1. 1. The utility model provides a novel seal structure for gyration ammonium stove, includes pan feeding end, discharge end and gyration barrel (1), gyration barrel (1) both ends all rotate through seal structure and pan feeding end, discharge end and be connected, its characterized in that, seal structure includes: the first mounting ring (2) is arranged on the feeding end and the discharging end, and the second mounting ring (3) is arranged on the rotary cylinder body (1), and the top height of the first mounting ring (2) is higher than the top height of the second mounting ring (3); an outer fish scale sealing assembly (4) and an inner fish scale sealing assembly (5) are arranged on the first mounting ring (2), one end of the outer fish scale sealing assembly (4) is fixed at the top of the first mounting ring (2), the other end of the outer fish scale sealing assembly is tightly contacted with the top of the second mounting ring (3), one end of the inner fish scale sealing assembly (5) is fixed on the first mounting ring (2), and the other end of the inner fish scale sealing assembly is tightly contacted with the outer surface of the rotary cylinder body (1).
  2. 2. The novel sealing structure for the rotary ammonium furnace according to claim 1, wherein the cross section of the first mounting ring (2) is L-shaped, the outer fish scale sealing component (4) is fixed at the top of the L-shaped, and the inner fish scale sealing component (5) is fixed above the bottom edge of the L-shaped.
  3. 3. The novel sealing structure for the rotary ammonium furnace according to claim 1, wherein the cross section of the second mounting ring (3) is inverted L-shaped, the inverted L-shaped top is arranged on the inverted L-shaped top of the second mounting ring (3) and above the contact surface of the inner fish scale sealing assembly (5) and the rotary cylinder (1).
  4. 4. The novel sealing structure for the rotary ammonium furnace according to claim 3, wherein the second mounting ring (3) is provided with a plurality of spring pressing assemblies (6), and the spring pressing assemblies (6) comprise springs arranged below the inverted L-shaped top of the second mounting ring (3) and pressing plates connected to the other ends of the springs.
  5. 5. The novel sealing structure for a rotary ammonium furnace according to claim 4, wherein the compacting plates are wear-resistant rigid plates.
  6. 6. The novel sealing structure for the rotary ammonium furnace according to claim 1, wherein the connecting end of the rotary cylinder (1) and the feeding end/discharging end is also provided with a labyrinth sealing structure.
  7. 7. The novel sealing structure for a rotary ammonium furnace according to claim 6, wherein the labyrinth type sealing structure is a plurality of mutually staggered convex rings with different radiuses.
  8. 8. The novel sealing structure for the rotary ammonium furnace according to claim 7, wherein the staggered convex rings with different radiuses are provided with sealing layers.
  9. 9. The novel sealing structure for the rotary ammonium furnace according to claim 1, wherein the outer fish scale sealing component (4) and the inner fish scale sealing component (5) are a plurality of stainless steel fish scales which are annularly arranged, and wear-resistant layers are arranged on the contact surface of the top of the second mounting ring (3) and the outer fish scale sealing component (4) and the contact surface of the outer surface of the rotary cylinder (1) and the inner fish scale sealing component (5).
  10. 10. The rotary ammonium furnace comprises a feeding end, a discharging end and a rotary cylinder body (1), and is characterized in that two ends of the rotary cylinder body (1) are rotationally connected with the feeding end and the discharging end through the novel sealing structure for the rotary ammonium furnace according to any one of claims 1-9.

Description

Novel sealing structure for rotary ammonium furnace and rotary ammonium furnace Technical Field The utility model relates to the field of rotary ammonium furnace equipment, in particular to a novel sealing structure for a rotary ammonium furnace, which can be widely applied to rotary equipment in the industries of chemical engineering, smelting and the like. Background The rotary ammonium furnace is widely applied to industrial production and is used for completing the technological processes of heating, reacting, drying and the like of materials. As a high-efficiency continuous operation device, the design of the rotary ammonium furnace directly influences the efficiency of material treatment, the energy utilization rate and the stability of the production process. However, the tightness of the rotary ammonium furnace is always a key technical problem during the use of the furnace. Conventional rotary ammonium furnace sealing structures typically employ simple rubber seals or conventional sheet metal seals that tend to wear rapidly during long-term operation due to high temperature, high speed rotation and the hard nature of the material particles, thereby causing seal failure. In addition, the structures have poor adjustment capability on expansion and contraction of materials after abrasion, and cannot well meet the high-frequency use requirements of modern industrial production. Insufficient sealing performance not only can cause heat loss, but also can cause leakage of harmful gas or invasion of foreign substances, thereby affecting the operation efficiency and safety of the equipment. At present, aiming at the problems of insufficient sealing effect, short service life and poor maintainability of the rotary ammonium furnace, some improved sealing structures are proposed. For example, a labyrinth seal structure and flexible material combination design is adopted, and a wear-resistant coating or a flexible compensation device is added on the surface of the sealing component. However, in the prior art, how to achieve a more efficient and reliable seal while ensuring long-term operation stability is a still-to-be-solved problem. In view of the above, it is important to provide a novel sealing structure for the sealing structure of the rotary ammonium furnace. Disclosure of utility model The utility model provides a sealing assembly based on an outer scale sealing assembly and an inner scale sealing assembly, which is combined with a labyrinth seal and a spring compression assembly, so that the durability and the reliability of a sealing structure of a rotary ammonium furnace can be effectively improved, and the energy loss and equipment faults caused by sealing problems in the operation process are greatly reduced. The sealing assembly comprises a feeding end, a discharging end and a rotary cylinder body, wherein both ends of the sealing assembly are rotationally connected with the feeding end and the discharging end through sealing structures, and the sealing assembly is characterized by comprising a first mounting ring arranged on the feeding end and the discharging end and a second mounting ring arranged on the rotary cylinder body, the top of the first mounting ring is higher than that of the second mounting ring, an outer fish scale sealing assembly and an inner fish scale sealing assembly are arranged on the first mounting ring, one end of the outer fish scale sealing assembly is fixed at the top of the first mounting ring, the other end of the outer fish scale sealing assembly is in tight contact with the top of the second mounting ring, and one end of the inner fish scale sealing assembly is fixed on the first mounting ring, and the other end of the inner fish scale sealing assembly is in tight contact with the outer surface of the rotary cylinder body. Further, the cross section of the first mounting ring is L-shaped, the outer fish scale sealing component is fixed at the top of the L-shaped, and the inner fish scale sealing component is fixed above the bottom edge of the L-shaped. Further, the cross section of the second mounting ring is of an inverted L shape, and the inverted L-shaped top is arranged on the inverted L-shaped top of the second mounting ring and above the contact surface of the inner fish scale sealing assembly and the rotary cylinder body. Further, a plurality of spring compression assemblies are arranged on the second mounting ring, and each spring compression assembly comprises a spring arranged below the inverted L-shaped top of the second mounting ring and a compression plate connected to the other end of the spring. Further, the compaction plate is a wear-resistant rigid plate. Furthermore, the connecting end of the rotary cylinder body and the feeding end/discharging end is also provided with a labyrinth sealing structure. Further, the labyrinth seal structure is a plurality of mutually staggered convex rings with different radiuses. Further, the staggered convex rings wi