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Venturi tube reactor

A Venturi tube and reactor technology, applied in chemical/physical/physical-chemical nozzle reactors, calcium carbonate/strontium/barium, nanotechnology, etc., can solve the problem of short droplet residence time, large droplet diameter, clogging and other problems, to achieve the effect of easy industrial application, excellent product performance, and increased contact area

Active Publication Date: 2014-09-10
GUANGXI HUANA NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process is only used by a few companies in China, mainly because the nozzle atomization problem is difficult to solve, and the droplet diameter is large, which affects the gas-liquid contact area, and at the same time causes the droplet to fall faster, and the droplet stays in the tower for too long short, reducing the utilization rate of carbon dioxide and making it difficult to increase production capacity
In addition, the flow velocity of the droplets on the tower wall is slow, which easily increases the crystal particle size, and some scales on the tower wall, and the other part enters the product, resulting in uneven particle size distribution.
In order to improve the atomization effect of the nozzle, it is necessary to reduce the aperture of the nozzle, and if the aperture is too small, it will easily cause clogging, and no good solution has been found for this contradiction

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Venturi tube reactor setup includes pipe body 1, air inlet nozzle cylinder 3, air inlet joint 4, liquid inlet joint 2 and liquid outlet joint 5; Groove; the air inlet nozzle barrel 3 with two nozzles of 3 mm and 5 mm nozzle diameter is set, two positioning columns 10 are arranged outside the mouth end of the air inlet nozzle barrel 3, and the upper and lower ends of the air inlet nozzle barrel 3 with a nozzle diameter of 3 mm are selected to be sealed circle, and facing the installation hole of the Huai Venturi tube reactor, and then screw-fixed with the inlet joint 4; the upper and lower ends of the pipe body 1 are respectively provided with the liquid inlet joint 2 and the liquid outlet joint 5, and the liquid inlet joint 2 is connected to the powerful pump. The outlet joint 5 is connected to the reaction kettle.

[0026] When working, the CaCO 3 Limestone with a content greater than 98.5% is calcined at 1050±1°C for 3 hours to obtain quicklime; the mass ratio of qui...

Embodiment 2

[0029] Venturi tube reactor setup includes pipe body 1, air inlet nozzle barrel 3, air inlet joint 4, liquid inlet joint 2 and liquid outlet joint 5; pipe body 1 is provided with air inlet nozzle barrel 3 placement holes, and the placement holes are provided with three positioning holes Groove; the nozzle diameter is set to be the intake nozzle tube 3 of three nozzles of 3mm, 4mm and 5mm, three positioning columns 10 are arranged outside the mouth end of the intake nozzle tube 3, and the upper and lower two ends of the intake nozzle tube 3 with a nozzle diameter of 5mm are selected Set the sealing ring, and align with the placement hole of the Huai Venturi tube reactor, and then screw it with the inlet joint 4; the upper and lower ends of the pipe body 1 are respectively provided with the liquid inlet joint 2 and the liquid outlet joint 5, and the liquid inlet joint 2 is connected with a strong Pump, liquid outlet joint 5 is connected to reaction kettle.

[0030] When working,...

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Abstract

The invention discloses a venturi tube reactor. The reactor comprises a tube body, an air inlet nozzle cylinder, an air inlet joint, a liquid inlet joint and a liquid outlet joint, wherein an air inlet nozzle cylinder placing hole is arranged on the tube body, a positioning groove is arranged on the placing hole, more than two nozzles with nozzle apertures of 3-5mm are arranged on the air inlet nozzle cylinder, a positioning column is arranged at the outer edge of the opening of the air inlet nozzle cylinder, the liquid inlet joint and the liquid outlet joint are arranged at the upper end of the tube body and the lower end of the tube body respectively, the liquid inlet joint is connected with a powerful pump, and the liquid outlet joint is connected with a reaction still. The powerful pump sends serum into the venturi tube reactor for high-pressure jetting, the serum is atomized into liquid drops with extremely-small grain diameters, simultaneously, a certain vacuum area is formed at a kiln gas inlet, and kiln gases are absorbed into the venturi tube reactor automatically for carbonization reaction with serum liquid drops. No air compressor is required for feeding of kiln gases, the atomization effect can be controlled through nozzle apertures, the water outlet speed and the like, the product quality is guaranteed, continuous operation can be achieved, the reactor is simple and practical, industrial application can be achieved easily, and the reactor has good economic benefit.

Description

technical field [0001] The invention belongs to the technical field of chemical machinery and relates to a chemical reaction device, in particular to a Venturi tube reactor. Background technique [0002] Calcium carbonate is a white, non-toxic filler that is widely available. High-purity precipitated calcium carbonate with suitable particle size and shape can be obtained by adjusting the production process. Precipitated calcium carbonate is widely used in the fields of plastics, papermaking, rubber, viscose, coatings and inks. It not only plays the role of incremental filling and reduces processing costs, but also can perform functional modification on filling objects. Especially nano-calcium carbonate, because of its smaller particle size, higher specific surface area and special surface treatment, has superior properties that cannot be compared with ordinary calcium carbonate. For plastic products, it has the effect of strengthening and toughening; for rubber products, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/26C01F11/18B82Y30/00
Inventor 朱勇黄炜民黄炜波黄安定
Owner GUANGXI HUANA NEW MATERIALS TECH CO LTD
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