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Gas phase polymerization system and its nozzle device

A nozzle device and nozzle technology are applied in the field of coal chemical industry, which can solve the problems such as the nozzle device being easily blocked, and achieve the effects of eliminating the problem of resin clogging the nozzle, increasing the output, and reducing the number of times of stopping and cleaning the nozzle.

Active Publication Date: 2017-10-27
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The main purpose of the present invention is to provide a gas phase polymerization system and its nozzle device, to solve the problem that the nozzle device in the prior art is easily blocked

Method used

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  • Gas phase polymerization system and its nozzle device
  • Gas phase polymerization system and its nozzle device
  • Gas phase polymerization system and its nozzle device

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Embodiment Construction

[0034] 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. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] In order to achieve the above purpose, according to one aspect of the present invention, a nozzle device is provided, please refer to Figures 1 to 5 , the nozzle device includes a nozzle body 10 and an injection hole 11 extending axially thereof, the nozzle device also includes a catalyst feed hole 12 communicated with the injection hole 11 and a first gas inlet hole 13, the nozzle device also includes a second gas Through the inlet hole 14, the outlet of the catalyst feed hole 12 and the outlet of the first gas inlet hole 13 communicate with the feed port of the injection hole 11, and the outlet of the second gas inlet hole 14 is arranged at the outlet end of the nozzle body 10 .

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Abstract

The invention provides a gaseous polymerization system and a nozzle device thereof, the nozzle device comprises a nozzle body and an ejecting hole that stretches along the axial direction of the nozzle body, the nozzle device also comprises a catalyst feed opening and a first gas access hole which are communicated with the ejecting hole, the nozzle device also comprises a second gas access hole, the outlet of the catalyst feed opening and the outlet of the first gas access hole are communicated with a feed port of the ejecting hole, and the outlet of the second gas access hole is arranged at the outlet end of the nozzle body. The nozzle device in the invention comprises the second gas access hole, the outlet of the second gas access hole is arranged at the outlet end of the nozzle body, the second gas access hole can blow the material ejected from the interior of the ejecting hole, not only can the atomization effect be enhanced, but also the problem that the outlet of the nozzle device is obstructed can be eliminated thoroughly, and the long-period and unremitting feed of slurry catalyst can be maintained.

Description

technical field [0001] The invention relates to the field of coal chemical industry, in particular to a gas phase polymerization system and a nozzle device thereof. Background technique [0002] In the field of coal chemical industry, injecting liquid catalyst into the reactor through an atomizing nozzle to form uniform catalyst droplets to initiate polymerization is widely used in gas phase polymerization technology. Typical slurry catalysts such as Ziegler-Natta catalysts, metallocene catalysts, chromium-based, vanadium-based, nickel-based and mixtures thereof, these catalysts can be added to the reactor alone to initiate the reaction, and can also be combined with a cocatalyst (triethyl Aluminum, n-hexyl aluminum, etc.) are added to the reactor together to initiate the polymerization reaction to increase the reactivity. [0003] However, adding the above-mentioned metal-based slurry catalyst into the reactor through the atomizing nozzle faces the problem of catalyst clog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B13/02B05B15/02
CPCB05B13/02B05B13/0278B05B15/50
Inventor 司天保王鹤鸣关丰忠李国锋杜善明肖健凌云志张箭飞吕海蛟林海吴国祥郭晓东刘义
Owner CHNA ENERGY INVESTMENT CORP LTD
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