Constant-pressure additive hopper for reaction kettle and application method of constant-pressure additive hopper

A technology of reaction kettle and hopper, which is applied in the field of constant pressure additive hopper, can solve problems such as the influence of reaction results, achieve the effects of increasing experimental stability, reducing process control, and solving feeding problems

Inactive Publication Date: 2015-03-04
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent does not use the protection of nitrogen or some inert gases, because some synthesis reactions will have drastic changes when encountering oxygen, which will have a greater impact on the reaction results

Method used

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  • Constant-pressure additive hopper for reaction kettle and application method of constant-pressure additive hopper
  • Constant-pressure additive hopper for reaction kettle and application method of constant-pressure additive hopper
  • Constant-pressure additive hopper for reaction kettle and application method of constant-pressure additive hopper

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Embodiment Construction

[0025] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0026] figure 1 It is a schematic diagram of the structure of the constant pressure additive hopper used in the reactor provided by the preferred embodiment of the present invention. like figure 1 As shown, the constant pressure additive hopper for the reactor provided by the preferred embodiment of the present invention includes a hopper body 1, a cover plate 2, an air inlet 3, an air outlet 4, a vent 5 and a discharge port 6. The air inlet 3 , the air outlet 4 , the air outlet 5 and the feeding port 6 are respectively connected with pipelines, and the pipelines are respectively provided with valves. Wherein, the air inlet 3, the air outlet 4, and the air vent 5 are arranged on the upper end of t...

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Abstract

The invention provides a constant-pressure additive hopper for a reaction kettle and an application method of the constant-pressure additive hopper. An air inlet, an air outlet and an air vent are formed in the upper end of a hopper body, a discharging hole is formed in the lower end of the hopper body, and the air vent and the discharging hole are respectively connected with the reaction kettle through a pipeline. The air inlet and air outlet of each pipeline are controlled through a valve, and an effect for replacing inert gases in the hopper can be achieved, so that the experimental stability can be improved. Meanwhile, a positive pressure effect and a negative pressure effect are respectively achieved by virtue of different control methods of each valve, the feeding problem is solved, and the process control is also reduced.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and in particular relates to a constant-pressure additive hopper for a reaction kettle and a use method thereof. Background technique [0002] The polyester synthesis reaction is divided into two stages of esterification and polycondensation. The current experimental reactors are almost all one reactor for esterification and polycondensation. Since the reaction is carried out under airtight conditions, all raw material additives must be put in together before the esterification. During the reaction process, the esterification reaction is under positive pressure, and the polycondensation reaction is under negative pressure. For scientific research, it is necessary to add many auxiliary agents or additives with different functions in the reaction. Some of these functional auxiliary agents need to be added in the esterification section, and some need to be added in the polycondensation section. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J3/02
CPCB01J3/02B01J19/14
Inventor 韩志强
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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