CN210117243U - Slurry stirring device of carbonization tower - Google Patents

Abstract

The utility model provides a carbonization tower thick liquid agitating unit, including the carbonization tower, the top of carbonization tower is equipped with the thick liquid entry, and the carbonization tower is equipped with the admission line that lets in it, and the lower extreme of admission line is equipped with toper exhaust umbrella cap, the carbonization tower is equipped with one at least and its communicating bypass line in upper and lower part, and below the upper end of bypass line was located carbonization tower interior liquid level for the import, the lower extreme of bypass line was less than toper exhaust umbrella cap for the export. Through the utility model discloses at light calcium carbonate carbonization in-process, increase thick liquid radial motion in carbon dioxide reaction process, shorten the carbonization time, the carbonization effect is more even, stabilizes product quality, reaches reduction in production cost's purpose.

Description

A carbonization tower slurry stirring device

technical field

The utility model belongs to the field of chemical industry, relates to a carbonization tower for carbonization production of light calcium carbonate, and in particular relates to a carbonization tower slurry stirring device.

Background technique

In the production process of light calcium carbonate, the aged calcium hydroxide slurry is first injected into the carbonization tower, and then carbon dioxide gas is blown into the carbonization tower, and the carbon dioxide gas reacts with the calcium hydroxide in the tower to generate light calcium carbonate, This reaction is called carbonization reaction. Since this carbonization reaction is a static reaction, there are disadvantages of long reaction time and low reaction efficiency, and when the introduced carbon dioxide participates in the reaction process, part of the gas is gradually released from the slurry, and the reaction is incomplete.

Utility model content

The utility model provides a carbonization tower slurry stirring device, which solves the problems of long reaction time, low reaction efficiency and insufficient utilization of the introduced carbon dioxide gas during static carbonization reaction.

The technical scheme adopted by the utility model is: a carbonization tower slurry stirring device, comprising a carbonization tower, the top of the carbonization tower is provided with a slurry inlet, the carbonization tower is provided with an air inlet pipe leading into it, and the lower end of the air inlet pipe is provided with a slurry inlet. The conical exhaust umbrella cap is distributed with exhaust holes for upward air discharge. The carbonization tower is provided with at least one bypass pipe that communicates with its upper and lower parts. The upper end of the bypass pipe is the inlet located at the carbonization tower Below the liquid level in the tower, the lower end of the bypass pipe is the outlet lower than the conical exhaust umbrella cap.

Further, the outlet at the lower end of the bypass pipe is provided with a pipe nozzle.

Further, a water pump is provided on the bypass pipeline.

Preferably, the conical exhaust umbrella cap is located at the bottom of the carbonization tower.

Preferably, an included angle of not more than 90 degrees is formed between the tail of the bypass pipe and the side wall of the carbonization tower.

The beneficial effects of the present utility model are:

1. The bypass pipe is connected between the upper and lower parts of the sidewall of the carbonization tower, and the slurry in the carbonization tower is rotated radially by the power of the slurry at the lower end of the bypass pipe. The upward buoyancy and the radial shear force brought by the bypass pipeline, so that the carbonization reaction is accelerated, the use is convenient and the product quality is stable, and the purpose of reducing the carbonization cost is achieved.

2. A water pump is installed on the bypass pipeline of the utility model, and the slurry in the upper part of the carbonization tower is pumped into the lower part through the water pump to make it rotate rapidly to stir the slurry, increase the radial movement of the slurry in the carbonization tower during the carbon dioxide reaction process, and shorten the carbonization time. The carbonization effect is more uniform.

3. An included angle of not more than 90 degrees is formed between the tail of the bypass pipe and the side wall of the carbonization tower, which is convenient for the radial circulation of the slurry in the carbonization tower as a whole.

Description of drawings

Fig. 1. structural representation of the present utility model;

In the figure: 1. Carbonization tower; 2. Liquid level; 3. Air inlet pipe; 4. Water pump; 5. Pipe nozzle; 6. Conical exhaust umbrella cap; 7. Slurry valve; 8. Slurry pipe; 9 , slurry inlet; 10. Bypass pipeline.

Detailed ways

The utility model is described in further detail below in conjunction with the specific drawings;

As shown in FIG. 1, a carbonization tower slurry stirring device includes a carbonization tower 1, a slurry inlet 9 is opened at the top of the carbonization tower 1, a slurry discharge pipe 8 is installed at the bottom of the carbonization tower, and a slurry discharge pipe 8 is installed on the slurry discharge pipe 8. Valve 7. From the top of the carbonization tower along its axial direction, an intake pipe 3 is inserted into it. The lower end of the intake pipe 3 is welded with a conical exhaust umbrella cap 6, and the conical exhaust umbrella cap 6 is located at the bottom of the carbonization tower. The conical exhaust umbrella cap 6 is distributed with exhaust holes for upward air outlet. The side of the carbonization tower is provided with at least one bypass pipeline that communicates with its upper and lower parts, the upper end of the bypass pipeline is the inlet located below the liquid level in the carbonization tower, and the lower end of the bypass pipeline 10 is the outlet lower than the conical exhaust umbrella cap. 6. A pipe nozzle 5 is installed at the outlet of the lower end of the bypass pipe 10 to increase the power of the liquid. An included angle of not more than 90 degrees is formed between the tail of the bypass pipe and the side wall of the carbonization tower. A water pump is installed on the bypass pipe, which is convenient for speeding up the circulation.

The calcium hydroxide slurry is added into the carbonization tower through the slurry inlet 9, and carbon dioxide gas is introduced into the carbon dioxide gas through the inlet pipe 3. When carbonization starts, the carbon dioxide gas is discharged upward from the distributed conical umbrella cap 6. The calcium reacts to generate light calcium carbonate, the water pump 4 is turned on, the slurry in the upper part of the carbonization tower is pumped into the lower part of the carbonization tower through the water pump 4, the slurry in the carbonization tower is rotated, the slurry is stirred, and the slurry radial direction is increased during the carbon dioxide reaction process. Movement, shorten the carbonization time, so that the carbonization reaction is faster, the carbonization process has both upward buoyancy and radial shear force, the carbonization effect is more uniform, and the quality is more stable.

Claims (5)

1. The utility model provides a carbonators thick liquid agitating unit, includes the carbonators, and the top of carbonators is equipped with the thick liquid entry, and the carbonators is equipped with the admission line that lets in it, and the lower extreme of admission line is equipped with toper exhaust umbrella cap, and the last distribution of toper exhaust umbrella cap has the exhaust hole of upwards giving vent to anger, its characterized in that: the carbonization tower is at least provided with a bypass pipeline communicated with the upper part and the lower part of the carbonization tower, the upper end of the bypass pipeline is an inlet positioned below the liquid level in the carbonization tower, and the lower end of the bypass pipeline is an outlet lower than the conical exhaust umbrella cap.

2. A slurry stirring apparatus for a carbonization tower according to claim 1, wherein: and a pipeline nozzle is arranged at an outlet at the lower end of the bypass pipeline.

3. A slurry stirring apparatus for a carbonization tower according to claim 1 or 2, wherein: and a water pump is arranged on the bypass pipeline.

4. A slurry stirring apparatus for a carbonization tower according to claim 3, wherein: the conical exhaust umbrella cap is positioned at the bottom in the carbonization tower.

5. A slurry stirring apparatus for a carbonization tower according to claim 4, wherein: an included angle which is not more than 90 degrees is formed between the tail part of the bypass pipeline and the side wall of the carbonization tower.

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