Carbon dioxide blowing system at bottom of reaction tank body

Abstract

The utility model relates to the technical field of reaction tanks, in particular to a reaction tank bottom carbon dioxide blowing system which comprises a bottom blowing unit arranged at the bottom of a reaction tank, the bottom blowing unit is composed of a plurality of groups of high-pressure sprayers, and carbon dioxide is sprayed out through the high-pressure sprayers, so that the mixing contact effect with steel slag can be improved; and the bottom blowing control system is used for controlling the working state of the bottom blowing unit, the CO2 bottom blowing system of the reaction tank is added, so that the stirring force of the bottom layer of the tank can be effectively increased, and insufficient reaction or deposition of the steel slag micro powder at the bottom of the stirring tank caused by deposition of the steel slag micro powder at the bottom of the reaction tank is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction tanks, in particular to a carbon dioxide spraying system at the bottom of a reaction tank body. Background Art

[0002] Carbon dioxide needs to be introduced into the reaction solution of steel slag to react with the calcium ions in the steel slag. Although carbon dioxide is introduced into the tank during the production process and a stirring device is provided in the tank to allow the carbon dioxide to react with most of the steel slag in the reaction tank, the settling rate of the steel slag is relatively high, and there is still steel slag powder deposited at the bottom of the tank, resulting in excessive accumulation of steel slag powder at the bottom valve, causing material accumulation.

[0003] This solution proposes a carbon dioxide blowing system at the bottom of the reaction tank, adding a bottom blowing system at the bottom of the solid-liquid reaction tank to strengthen the stirring of the gas on the liquid and ensure sufficient reaction. Utility Model Content

[0004] The utility model aims to at least solve the problem in the prior art that the hard slag at the bottom of the reaction tank is difficult to fully contact and react with carbon dioxide.

[0005] This solution provides a carbon dioxide blowing system at the bottom of a reaction tank, which is achieved by the following specific technical means: it includes a bottom blowing unit arranged at the bottom of the reaction tank, the bottom blowing unit is composed of multiple groups of high-pressure nozzles, and carbon dioxide is sprayed through the high-pressure nozzles; a bottom blowing control system is used to control the working state of the bottom blowing unit.

[0006] Preferred technical solution 1: The inlets of the multiple groups of high-pressure nozzles are all connected to an external carbon dioxide supply device through a group of pipelines, and the bottom blowing control system is composed of a control valve connected to the high-pressure nozzles.

[0007] Preferred technical solution 2: The control valve includes an on-off valve, and the on-off valve is provided on a group of pipes connected to the inlets of the multiple groups of high-pressure nozzles to control the supply and cut-off of carbon dioxide.

[0008] Preferred technical solution three: The bottom blowing unit also includes a compressed air safety pipeline, the outlet end of the compressed air safety pipeline extends into the reaction tank and is connected to the high-pressure nozzle to provide compressed air to the reaction tank during the reaction interruption period.

[0009] Preferred technical solution four: multiple groups of branch pipes are fixed on the pipeline, and the number of the branch pipes is equal to the number of high-pressure nozzles and they are connected one-to-one.

[0010] Preferred technical solution five: A pressure detection probe is provided on the branch pipe, and the control valve also includes a regulating valve provided on each group of branch pipes. At the same time, the bottom blowing control system also includes a controller, and the controller is connected to the pressure detection probe and the regulating valve to achieve the technical effect of dynamically adjusting the CO2 supply.

[0011] The above structure enables this solution to have the following beneficial effects:

[0012] 1. Adding a CO2 bottom blowing system to the reaction tank can effectively increase the stirring force at the bottom of the tank, effectively reducing the deposition of steel slag powder at the bottom of the reaction tank, resulting in insufficient reaction or the deposition of steel slag powder at the bottom of the mixing tank;

[0013] 2. Reduce production failures and ensure continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this scheme.

[0016] Among them, 1. Bottom blowing unit, 11. High-pressure nozzle, 12. Pipeline, 13. Branch pipe, 14. Compressed air safety pipeline, 2. Bottom blowing control system, 21. Control valve, 211. Switch valve, 212. Regulating valve, 22. Pressure detection probe, 23. Controller. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 The carbon dioxide injection system at the bottom of the reaction tank includes a bottom blowing unit 1 arranged at the bottom of the reaction tank. The bottom blowing unit 1 is composed of multiple groups of high-pressure nozzles 11. The carbon dioxide is sprayed out through the high-pressure nozzles 11, which can not only improve the mixing and contact effect with the steel slag, but also slow down the settling rate of the steel slag.

[0019] The inlets of multiple groups of high-pressure nozzles 11 are all connected to an external carbon dioxide supply device through a group of pipes 12. Multiple groups of branch pipes 13 are fixed on the pipes 12. The number of branch pipes 13 is equal to the number of high-pressure nozzles 11 and is connected one-to-one, that is, the branch pipes 13 are connected between the pipes 12 and the high-pressure nozzles 11. The carbon dioxide sent from the pipes 12 enters each branch pipe 13 and then is sent to each high-pressure nozzle 11. The high-pressure nozzles 11 can be arranged in 2, 4, 6, 8 or other numbers according to the size of the reaction tank body, and multiple groups of high-pressure nozzles 11 can be set according to different angles.

[0020] See also Figure 1 The carbon dioxide blowing system at the bottom of the reaction tank also includes a bottom blowing control system 2 for controlling the working state of the bottom blowing unit 1. The bottom blowing control system 2 is composed of a control valve 21 connected to the high-pressure nozzle 11, and the supply of carbon dioxide is controlled by the control valve 21;

[0021] The control valve 21 includes an on-off valve 211, which is arranged on the pipeline 12 to control the supply and cut-off of carbon dioxide. A pressure detection probe 22 is arranged on each group of branch pipes 13. The control valve 21 also includes a regulating valve 212 arranged on each group of branch pipes 13. The regulating valve 212 is used to control the flow of carbon dioxide. At the same time, the bottom blowing control system 2 also includes a controller 23. The controller 23 is connected to the pressure detection probe 22 and the regulating valve 212. The pressure detection probe 22 is used to detect the pressure in the branch pipe 13 and transmit the signal to the controller 23. The CO2 gas consumption is adjusted through the regulating valve 212 on the branch pipe 13 to achieve the technical effect of dynamically adjusting the CO2 supply.

[0022] See also Figure 1 The bottom blowing system of the reaction tank body also includes a compressed air safety pipeline 14. The outlet end of the compressed air safety pipeline 14 extends into the reaction tank and is connected to the high-pressure nozzle 11 to provide compressed air for the reaction tank during the reaction interruption period to ensure that the high-pressure nozzle 11 is not blocked.

[0023] See also Figure 1 The carbon dioxide spraying system at the bottom of the reaction tank body adopts a high-pressure nozzle 11 to prevent backwater blowing.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide injection system at the bottom of a reaction tank, characterized by: It comprises a bottom blowing unit (1) arranged at the bottom of a reaction tank, wherein the bottom blowing unit (1) is composed of a plurality of groups of high-pressure nozzles (11); A bottom blowing control system (2) for controlling the working state of the bottom blowing unit (1); The bottom blowing control system (2) is composed of a control valve (21) connected to the high-pressure nozzle (11), and the supply of carbon dioxide is controlled by the control valve (21); The control valve (21) includes an on-off valve (211), and the on-off valve (211) is provided on a group of pipes (12) connected to the inlets of the plurality of groups of high-pressure nozzles (11) to control the supply and cutoff of carbon dioxide.

2. A carbon dioxide injection system at the bottom of a reaction tank according to claim 1, characterized in that: The inlets of the plurality of groups of high-pressure nozzles (11) are all connected to an external carbon dioxide supply device through a group of pipes (12).

3. A carbon dioxide injection system at the bottom of a reaction tank according to claim 2, characterized in that: A plurality of branch pipes (13) are fixed on the pipeline (12), and the number of the branch pipes (13) is equal to the number of the high-pressure nozzles (11) and they are connected one-to-one, that is, the branch pipes (13) are connected between the pipeline (12) and the high-pressure nozzles (11).

4. A carbon dioxide injection system at the bottom of a reaction tank according to claim 3, characterized in that: The branch pipes (13) are provided with pressure detection probes (22). The control valve (21) further includes a regulating valve (212) provided on each group of branch pipes (13). The regulating valve (212) is used to control the flow rate of carbon dioxide. The bottom blowing control system (2) further includes a controller (23). The controller (23) is connected to the pressure detection probes (22) and the regulating valves (212).

5. The carbon dioxide injection system at the bottom of a reaction tank according to claim 1, characterized in that: The bottom blowing unit (1) further comprises a compressed air safety pipeline (14), the outlet end of the compressed air safety pipeline (14) extending into the reaction tank and connected to the high-pressure nozzle (11).

6. The carbon dioxide injection system at the bottom of a reaction tank according to claim 1, characterized in that: The number and angle of the multiple groups of high-pressure nozzles (11) are configured according to the size of the reaction tank.

7. The carbon dioxide injection system at the bottom of a reaction tank according to claim 1, characterized in that: The high-pressure nozzle (11) adopts a high-pressure anti-backwater blowing nozzle.

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