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Conic-bottom tower container and its application

A tower container and conical bottom technology, which is applied in the direction of containers, large containers, loading/unloading, etc., can solve the problems of unstable materials, potential safety hazards, and uneven flow of granular materials, so as to achieve the balance of the environment and improve Flow performance, the effect of solving the radial temperature difference

Inactive Publication Date: 2005-09-14
SINOPEC YIZHENG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The gas enters from the inner wall of the bottom of the tower, and the center of the reactor is not fed with gas, resulting in uneven radial temperature distribution and affecting the quality of the final product;
[0005] (2) At the junction of the tower body and the cone bottom, due to the sudden change of the geometric size, the flow performance of the material is greatly affected
Even if the internal member layer of the tower body is well set up, which can satisfy the material to maintain the overall flow of plug flow, but the internal member at the bottom of the cone is not yet ideally designed, so that the material cannot be discharged from the bottom of the tower smoothly, and in serious cases Bonding occurs, which not only affects product quality, but also poses safety hazards;
[0006] (3) It is difficult to increase the capacity of single-line equipment
The former, with the increase of the absolute height of the tower body, the charging pressure of the bottom material in the tower will also increase, and the above-mentioned problem (2) is more prominent; the latter can reduce the relative height, but the problem brought is: The flow of granular material is very uneven, with obvious wall flow effect, which will cause the material to bridge and form an arch above the discharge port in severe cases
[0007] When this type of equipment is used in processes such as grain drying, there are also technical difficulties similar to those mentioned above.

Method used

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  • Conic-bottom tower container and its application
  • Conic-bottom tower container and its application
  • Conic-bottom tower container and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like Figure 1 ~ Figure 4 As shown, a tower reactor with a conical bottom, the diameter D of the tower body 1 is 2.8 meters, the height H is 32 meters, the cone angle α of the cone bottom 2 is 37°, and it is installed vertically with a load-bearing support 16 in place. Inside the reactor, according to the technical scheme provided by the same applicant with the application number 03131908.4, 10 layers of internal components 15 are arranged on the top, and a conical surface 6 and 7 with equal bottom circumferences of the upper and lower bottoms are stacked in reverse to form the bottom. The formed double-cone type discharge inner member, the diameter d of the double-cone is 1 meter, the cone angle of the upper cone surface 6 is 39°, the cone angle of the lower cone surface 7 is 37°, and the upper and lower cone surfaces are used respectively Four upper support ribs 8 and six lower support ribs 9 evenly arranged are fixedly connected with the inner wall of the tower body...

Embodiment 2

[0035] like Figure 1 ~ Figure 4As shown, a tower reactor with a conical bottom, the diameter D of the tower body 1 is 3.2 meters, the height H is 30 meters, the cone angle α of the cone bottom 2 is 41°, and it is installed vertically with a bearing support 16 in place. There are 9 layers of inner members 15 on the inside of the reactor, and a double-cone discharge inner member formed by reversely stacking the upper and lower conical surfaces 6 and 7 with equal bottom circumferences. The double-cone diameter d is 1.2 meters, the cone angle of its upper cone surface 6 is 44 °, the cone angle of the lower cone surface 7 is 41 °, and the upper and lower cone surfaces are respectively equipped with six upper support ribs 8 and six lower support ribs 9 evenly arranged. They are fixedly connected with the inner wall of the tower body 1 and the cone bottom 2 respectively. The installation position of the double cone is that its vertical axis of symmetry coincides with the axis of t...

Embodiment 3

[0038] like Figure 1 ~ Figure 4 As shown, a tower dryer with a conical bottom, the diameter D of the tower body 1 is 3.8 meters, the height H is 28 meters, the cone angle α of the cone bottom 2 is 44°, and it is installed vertically with a load-bearing support 16 in place. There are 8 layers of inner members 15 on the inside of the dryer, and a double-cone discharge inner member formed by reversely stacking the upper and lower conical surfaces 6 and 7 with equal bottom circumferences. The double-cone diameter d is 1.6 meters, the cone angle of its upper cone surface 6 is 46 °, the cone angle of the lower cone surface 7 is 44 °, and the upper and lower cone surfaces are respectively equipped with six upper support ribs 8 and eight lower support ribs evenly arranged 9 are fixedly connected with the inner wall of the tower body 1 and the cone bottom 2 respectively. The installation position of the double cone is that its vertical axis of symmetry coincides with the axis of the...

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Abstract

The present invention relates to conic-bottom tower container for drying and reaction of granular solid material, and setting a hollow double-cone member in the interface between the tower body and the conic bottom solves effectively the problems of over great material pressure inside the tower, material coagulation, etc. and improves the flowability of discharged solid material for smooth flow out of the material. In the same time, gas is led into the double cone from the lower support ribs, so that gas enters the center of tower to avoid radial temperature difference and ensure balanced and homogeneous solid material environment. In addition, the present invention presents the optimized tower height, tower diameter, cone angle and other main design parameters and this makes it easy for expanding the equipment. The present invention may be used widely in solid polymerization of polyester, engineering plastic, polypropylene, etc. and the drying of various granular material.

Description

technical field [0001] The present invention relates to a tower container with a conical bottom, especially a conical bottom tower container for drying or reacting solid materials, more particularly a conical bottom tower container for drying or reacting granular solid materials. Background technique [0002] In the process of grain drying and storage, drying or reaction of granular industrial products or semi-finished products, tower containers with a cone-shaped bottom are often used. For example, when polymers such as polyester (PET), engineering plastics (PBT), and polypropylene (PP) are subjected to solid-state polymerization, inert gas with high purity is usually used as the reaction medium. The inert gas has both heating tasks and solid materials rely on The self-weight flows from top to bottom in the form of flat push flow, reacts while flowing, and discharges smoothly when it reaches the bottom. These characteristics and requirements make the conical bottom tower co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D88/54B65G69/08F26B17/14F26B21/00
Inventor 唐周军钱继兵孙德广米建国
Owner SINOPEC YIZHENG CHEM FIBER