The Application Research On New Urea Prilling Tower Of Earthquake Resistance System

Using the high tower pelleting method to carry on the compound fertilizer production can improve the content of nitrogen fertilizer and produce a ratio of the actual needs of the crop fertilizer. the turn out compound fertilizer must need to be put into use coming to be completed building the granule tower, urea prilling tower is not only structures, but also the production of urea is an important chemical equipment. When designing that urea prilling tower, Not only to meet the structural strength and stability of the requirements, but also meet the requirements of the production process, to ensure chemical industry to give birth to a child continuing moving round regularly. So, Development urea prilling tower structure analysis research is great significance to scientific and rational design.In the design of the tower granulation, Granulation of the tower project before the use of reinforced concrete structures, Construction of the slow progress of the trouble . In order to meet the tower structure of the body of earthquake, the production of compound fertilizer is planted on the bottom. It satisfied certain call for on seismic resistance, but it increased the complexity of the compound fertilizer production technology. This article take the urea prilling tower project of Hubei Yang Feng Group company as a background, According to the actual production of the status quo, the project changes the traditional topics of the chemical structure of the tower's design in the form, using concrete-filled steel tubular structure. It has Small cross section,great rigidity,high tensility,high dissipation energy capacity and between the concrete-filled steel tube columns add two-pole support. From the structure of the system components and structures to ensure the stability of the tower, also it is good for seismic resistance and speed up the construction progress. It shorts the materials in the system to run the cycle, so that greatly simplifies the process of production.This article prime task and the achievement have the following several spots:1,On the tower structure and the development of concrete-filled steel tube structure made a brief summary, And the analysis method which and the principle needs to thisarticle carry on the narration.2,According to the works of a 98 m high steel tower granulation of the structure and characteristics of the working principle and used software SATWE and SAP2000 separately has established the finite element spatial structure anatomic model. The model used concrete-filled steel tube column structure, between the column and column's support uses two hollow steel pipe connections.3,Carry on under the earthquake function with the mode of vibration decompositionreaction spectral method and the time interval analytic method to this tower the stressanalysis。Selects three actual earthquake record(X,Y) input to carry on the timeinterval analysis. Analysis of the structure of the force or the situation of displacementand computates structure floor displacement and level displacement and along highdistribution to analysis endogenic force change suddenly. Carry on the analysis to theendogenic force and the distortion big spot and the component and find out thestructure the weak link.4,Countering-analysis and the checking calculation the computed result by twosoftware's operations.The optimization design provides the computed result and thereference for the engineering design and the project practice.3,Also proved that the use of concrete-filled steel tube columns and double-polesupport, these the improvement which does in the structure is reasonable, favors theearthquake resistance.