Continuous vertical feeding system and method for fluidized bed reactor

A fluidized bed reactor and feeding system technology, which is applied in the field of continuous vertical feeding system of fluidized bed reactors, can solve the problems of gas-solid reaction entrainment loss, adverse effects on subsequent production, easy-to-wear granular materials, etc., and achieves continuous automatic feeding , The effect of reducing the entrainment loss of gas-solid reaction and avoiding wear

Pending Publication Date: 2020-08-07
HENAN BILLIONS NEW MATERIAL CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical feeding generally adopts screw feeding. Due to the rotation of the screw blade, the granular material is easy to wear and the amount of fine powder is increased. The entrainment loss of subsequent gas-solid reaction is serious.
Pneumatic feeding introduces a large amount of air or inert gas into the fluidized bed, which will adversely affect subsequent production

Method used

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  • Continuous vertical feeding system and method for fluidized bed reactor
  • Continuous vertical feeding system and method for fluidized bed reactor

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Embodiment 1

[0048] Such as figure 1 As shown, the granular material injection pipeline 2 is connected to the buffer bin 9, and the top of the buffer bin 9 is connected to the gas delivery branch pipe 3 and the exhaust self-regulating valve 7, so that the pressure of the feeding system can be controlled so that the pressure of the feeding system is greater than that of the fluidized bed reactor 17 pressure to prevent the granular material in the reactor from flowing back into the feeding system; the bottom of the buffer bin 9 is connected to the star feeder 11, and the lower part of the star feeder 11 is connected to the feed bin 12, between the buffer bin 9 and the feed bin 12 Connecting the pressure balance pipeline 10 can balance the pressure between the two feed bins and prevent the feeding pipe from being blocked. The feeding bin 12 is designed with a weighing module 13, which can weigh and calculate the feeding amount; the bottom of the feeding bin 12 is connected with the feeding ve...

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Abstract

The invention discloses a continuous vertical feeding system and method for a fluidized bed reactor. The feeding system comprises a supply system, a vertical discharging section, a horizontal conveying section, a gas conveying system and a pressure adjusting assembly which are connected in sequence. The other end of the horizontal conveying section is connected with a fluidized bed reactor, and the pressure adjusting assembly is connected with the supply system and the gas conveying system. The self-weight of a solid particle reaction material and the effect of an input gas are used to make particle materials uniformly fluidized and transferred to the vertical discharging section from the supply system, then transferred to the horizontal conveying section and continuously uniformly conveyed into a fluidized bed reactor, so the particle material abrasion caused by mechanical feeding is avoided, the fine powder amount is reduced, the entrainment loss of gas-solid reaction is further reduced, the gas amount introduced by pneumatic feeding is greatly reduced, and great benefits are brought to chlorination production.

Description

technical field [0001] The invention belongs to the technical field of chemical production, and in particular relates to a continuous vertical feeding system and method for a fluidized bed reactor. Background technique [0002] Gas-solid fluidized bed reactor can make solid and gas in intense relative motion, strengthen the heat transfer and mass transfer effect between gas and solid, greatly improve production, and is widely used in various chemical processing industries. In the production process of titanium dioxide, a fluidized bed reactor is used in the synthesis of titanium tetrachloride by using a chlorination furnace. The mixture composed of titanium-rich material and petroleum coke is in a fluid state with chlorine gas in the fluidized bed reactor. The chlorination reaction is carried out in the oxidized state. [0003] At present, the feeding methods of the fluidized bed reactor mainly adopt mechanical feeding and pneumatic feeding. Mechanical feeding generally ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/00B01J8/18B01J8/24B01D46/02
CPCB01D46/02B01J8/0015B01J8/1818B01J8/24
Inventor 齐满富刘红斌杨丹石森森王海
Owner HENAN BILLIONS NEW MATERIAL CO LTD
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