CN114522648A - Mixing reactor for automatically and rapidly mixing solution and construction method - Google Patents

Abstract

The invention discloses a mixing reactor for automatically and rapidly mixing a solution and a construction method, and belongs to the technical field of design and manufacture of salt chemical production process equipment. Provides a mixing reactor capable of rapidly and automatically mixing various solutions uniformly and a construction method thereof. The mixing reactor comprises a reaction tank, a weir-turning type mixing mechanism and a liquid conveying piping system, wherein the weir-turning type mixing mechanism is arranged in the reaction tank, a solution to be mixed is input into the weir-turning type mixing mechanism through the liquid conveying piping system to be mixed and turned out to the reaction tank for reaction, and a mixed solution after the reaction is finished is output out of the reaction tank through the liquid conveying piping system. The construction method comprises the steps of inputting different types of liquid into the open sleeve through the liquid input pipe, mixing the liquid in the open sleeve in a weir turning mode, entering the box body to react in the weir turning process, and finally outputting the liquid to the reaction tank through the liquid output pipe to complete the mixing and reaction of various liquids in the mixing reactor.

Description

Mixing reactor and construction method for automatic and rapid mixing of solutions

technical field

The invention relates to a mixing reactor, in particular to a mixing reactor used for automatic and rapid mixing of solutions, and belongs to the technical field of salt chemical production process equipment design and manufacture. The present invention also relates to a construction method for reacting with the mixed liquid in the mixed reactor.

Background technique

The main raw material for domestic sponge titanium and titanium dioxide production is TiCl4, and the production of TiCl4 mainly adopts molten salt chlorination process and boiling chlorination process. For the content of W(Ca+Mg)>5% in the titanium slag raw material, the most suitable process at present is the molten salt chlorination process. The production of molten salt chlorination will produce a large amount of Cl--containing waste residue (referred to as waste salt), and the stockpiling process is generally used at present. Through research and development, the new waste salt treatment process developed needs to effectively mix various waste liquids generated in production, realize rapid mixing reaction of various waste liquids in the reactor, and gradually separate elements such as Fe, Mn, Ca, Mg, etc. Finally, the recovered NaCl is returned to the molten salt chlorination furnace for use.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a mixing reactor capable of quickly and automatically mixing multiple solutions, and a construction method for using the mixing reactor to mix liquids to react.

The technical scheme adopted to solve the above-mentioned technical problems is: a mixing reactor for automatic and rapid mixing of solutions, the mixing reactor includes a reaction tank, a weir-type mixing mechanism and a liquid conveying piping system, and the The overturning weir type mixing mechanism is arranged in the reaction tank, and the solution to be mixed is input into the overturning weir type mixing mechanism through the liquid conveying pipe system to be mixed and turned out to the reaction tank for reaction, and the mixed solution after the reaction is completed passes through The liquid delivery piping system outputs the reaction tank.

Further, the reaction tank is composed of a sealable box body, the weir type mixing mechanism is arranged in the box body, and the liquid input pipe of the liquid conveying pipe system extends into the middle and upper part of the box body. Inside the box, the liquid output pipe of the liquid conveying piping system communicates with the box body from the lower part of the box body.

The preferred way of the above scheme is that the inner surface of the box is provided with a glass fiber reinforced plastic anti-corrosion layer, and the top of the box is provided with a reaction gas discharge port and a liquid input pipe arrangement hole, and the reaction gas discharge port and all Removable sealing covers are arranged on the arrangement holes of the liquid input pipes.

Further, the lined glass fiber reinforced plastic anti-corrosion layer is a 9-cloth 10-coated structural glass fiber reinforced plastic anti-corrosion layer arranged on the inner surface of the box.

The preferred mode of the above scheme is that the weir type mixing mechanism is an open casing arranged in the box, and the distance between the ends of the liquid input pipes for transporting different liquids from the bottom of the open casing is smaller than the distance of the liquid input pipe. Pipe diameter, the distance between the open upper opening of the open sleeve and the bottom of the box is not less than two-thirds of the height of the box.

Further, a control valve is provided on the liquid input pipe and the liquid output pipe of the liquid conveying piping system, the top of the box is detachably closed by a cover plate, and the reaction gas discharge port and the liquid input pipe arrangement holes are arranged. on the said cover.

Using the construction method of the mixed liquid reaction in the mixing reactor, the construction method inputs different kinds of liquids into the open casing through the liquid input pipe, and mixes them in the form of turning weirs in the open casing, and In the process of turning the weir, it enters the box and reacts, and finally the liquid output pipe is output to the reaction tank to complete the mixing and reaction of various liquids in the mixing reactor.

Further, the residence time of the mixed liquid in the tank is greater than or equal to the reaction time of various liquids.

A preferred mode of the above scheme is that the reaction duration is obtained through an external reaction test.

Further, the residence time of various liquids in the tank is controlled by the control valves provided on the liquid output pipe and the liquid input pipe to control the amount of liquid input and/or output.

The beneficial effects of the present invention are: the technical solution provided by the present application is provided by setting up a set of mixing reactors including a reaction tank, an overturning weir type mixing mechanism and a liquid conveying piping system, and arranging the overturning weir type mixing mechanism in the In the reaction tank, the solution to be mixed is then input into the weir-type mixing mechanism through the liquid conveying piping system to be mixed and turned out to the reaction tank for reaction, and the mixed solution after the reaction is completed passes through the liquid conveying piping system. Output the reaction tank. Because the technical solution provided in this application adopts the liquid conveying piping system to input the liquids that need to be mixed into the weir-type mixing mechanism at the same time, and the weir-type mixing mechanism realizes the mixing and agitation between different liquids in the form of the weir-type mixing mechanism. The mixing of various liquids has changed the current situation that the existing technology cannot effectively mix a large number of different liquids or needs to set up a large mixing tank and a stirring device for mixing, and achieves rapid and automatic mixing of various liquids that need to be reacted. the goal of. It creates conditions for the separation of elements such as Fe, Mn, Ca, Mg, etc. from the waste salt through reaction treatment, and finally the recovery of NaCl is returned to the molten salt chlorination furnace for use.

Description of drawings

FIG. 1 is a simplified structural schematic diagram of the mixing reactor used for automatic and rapid mixing of solutions according to the present invention.

Marked in the figure are: reaction tank 1, weir type mixing mechanism 2, liquid conveying piping system 3, liquid input pipe 4, liquid output pipe 5, reaction gas discharge port 6, liquid input pipe arrangement hole 7, control valve 8, cover plate 9.

Detailed ways

As shown in Figure 1 is a mixing reactor provided by the present invention that can quickly and automatically mix a variety of solutions. The mixing reactor includes a reaction tank 1, an overturning weir type mixing mechanism 2 and a liquid conveying piping system 3. The overturning weir type mixing mechanism 2 is arranged in the reaction tank 1, and the solution to be mixed passes through the The liquid conveying pipe system 3 is input into the overturning weir type mixing mechanism 2 for mixing and turned out to the reaction tank 1 for reaction. In the construction method, different kinds of liquids are input into the open casing through the liquid input pipe 4, and the open casing is mixed in the form of a weir, and in the process of turning the weir, it enters the box to react, and finally The mixing and reaction work of various liquids in the mixing reactor is completed by outputting the reaction tank through the liquid output pipe 5 . The technical solution provided by this application is by setting up a set of mixing reactors including a reaction tank, an overturning weir type mixing mechanism and a liquid conveying piping system, arranging the overturning weir type mixing mechanism in the reaction tank, and then placing the overturning weir type mixing mechanism in the reaction tank. The solution to be mixed is input into the weir-type mixing mechanism through the liquid conveying pipe system to be mixed and turned out to the reaction tank for reaction, and the mixed solution after the reaction is completed is output to the reaction tank through the liquid conveying pipe system. Because the technical solution provided in this application adopts the liquid conveying piping system to input each liquid to be mixed into the weir-type mixing mechanism at the same time, and the weir-type mixing mechanism realizes the mixing and agitation between different liquids in the form of the weir-type mixing mechanism to complete the various liquids. The mixing of various liquids has changed the current situation that the existing technology cannot effectively mix a large number of different liquids or needs to set up a large mixing tank and a stirring device for mixing, and achieves rapid and automatic mixing of various liquids that need to be reacted. the goal of. It creates conditions for the separation of elements such as Fe, Mn, Ca, Mg, etc. from the waste salt through reaction treatment, and finally the recovery of NaCl is returned to the molten salt chlorination furnace for use.

In the above-mentioned embodiment, in order to simplify the structure of each component of the present application, facilitate the manufacture, assembly and use, and improve the mixing effect, the reaction tank 1 described in the present application is composed of a sealable box. The mixing mechanism 2 is arranged in the said box, the liquid input pipe 4 of the liquid delivery pipe system 3 extends into the box body from the middle and upper part of the box body, and the liquid output pipe 5 of the liquid delivery pipe system is communicated with the box body from the lower part of the box body . The weir type mixing mechanism 2 is an open casing arranged in the box, and the distance between the ends of the liquid input pipes 4 for conveying different liquids from the bottom of the open casing is smaller than the diameter of the liquid input pipe 4, so The distance between the open upper opening of the open casing and the bottom of the box is not less than two-thirds of the height of the box. And a control valve 8 is provided on the liquid input pipe 4 and the liquid output pipe 5 of the liquid conveying pipe system 3, the top of the box is detachably closed by the cover plate 9, and the reaction gas discharge port 6 and the liquid input pipe are arranged. The holes 7 are all arranged on the said cover plate 9 . Correspondingly, in order to adapt to the corrosive characteristics of various liquids that need to be mixed in this application, in order to prolong the service life of the mixing reactor of this application, a glass fiber reinforced plastic anti-corrosion layer is arranged on the inner surface of the box body, and the inner surface of the box body is The top is provided with a reaction gas discharge port 6 and a liquid input pipe arrangement hole 7 , and a detachable sealing cover is arranged on the reaction gas discharge port 6 and the liquid input pipe arrangement hole 7 . At this time, the lined glass fiber reinforced plastic anti-corrosion layer is a 9-cloth 10-coated structural glass fiber reinforced plastic anti-corrosion layer arranged on the inner surface of the box.

Further, in order to improve the effect of the reaction, the residence time of the mixed liquid in the tank is greater than or equal to the reaction time of various liquids. At this time, the reaction time should be obtained by external reaction test. The amount of liquid input and/or output is controlled by the control valves arranged on the liquid output pipe 5 and the liquid input pipe 4 by using the residence time of various liquids in the tank.

specific embodiment

The main contents of the present invention are as follows:

1. The invention is suitable for acid solution. By lining the reactor with glass fiber reinforced plastic for anti-corrosion, 9 cloths and 10 coatings are used;

2. In this invention, a sleeve is set inside the reaction tank, and a variety of solution feed pipes are inserted into the bottom of the sleeve, so that the solutions are tumbling upwards, overflowing the sleeve, and forming a "turning weir" to make the solutions fully mixed, and then in the reaction tank. Downflow, discharge the reactor at the bottom of the vessel;

3. The external reaction tank calculates the residence time of the solution in the reactor according to the reaction time, effectively solving the chemical reaction effect;

4. Set other discharge holes for reaction at the top of the molten pool, and effectively process the gas;

5. Set up a flow control system on the feeding system, and solve the proportioning problem through the regulating valve.

Example 1

The present invention develops a reactor for fast and automatic mixing of various solutions by researching material properties and process conditions, and realizes the purposes of fast mixing and effective control of the reaction rate.

The first step: according to the working conditions, select the material;

The second step: according to the process requirements, calculate the mixing time of the solution in the reactor, design the length of the sleeve, etc.;

The third step: design the specifications of the reactor according to the process requirements, according to the length of the sleeve and the reaction time in the reactor.

Claims (10)

1. A mixing reactor that is used for automatic quick mixing of solution which characterized in that: the mixing reactor comprises a reaction tank (1), a weir-turning type mixing mechanism (2) and a liquid conveying piping system (3), wherein the weir-turning type mixing mechanism (2) is arranged in the reaction tank (1), a solution needing to be mixed is input into the weir-turning type mixing mechanism (2) through the liquid conveying piping system (3) to be mixed and turned out to the reaction tank (1) for reaction, and a mixed solution after the reaction is finished is output from the reaction tank (1) through the liquid conveying piping system (3).

2. The mixing reactor for automatic and rapid blending of solutions according to claim 1, characterized in that: the reaction tank (1) is composed of a closable tank body, the weir-turning type mixing mechanism (2) is arranged in the tank body, a liquid input pipe (4) of the liquid conveying pipe system (3) extends into the tank body from the middle upper part of the tank body, and a liquid output pipe (5) of the liquid conveying pipe system is communicated with the tank body from the lower part of the tank body.

3. The mixing reactor for automatic and rapid blending of solutions according to claim 2, characterized in that: the inner surface of the box body is provided with a lining glass fiber reinforced plastic anticorrosive layer, the top of the box body is provided with a reaction gas outlet (6) and a liquid input pipe arrangement hole (7), and detachable sealing covers are uniformly distributed on the reaction gas outlet (6) and the liquid input pipe arrangement hole (7).

4. The mixing reactor for automatic and rapid blending of solutions according to claim 3, characterized in that: the lining glass fiber reinforced plastic anticorrosive coating is a 9-cloth 10-coating structural glass fiber reinforced plastic anticorrosive coating arranged on the inner surface of the box body.

5. The mixing reactor for automatic rapid blending of solutions according to claim 1, 2, 3 or 4, characterized in that: the weir-turning type mixing mechanism (2) is an open sleeve arranged in the box body, the distance from the tail end of each liquid input pipe (4) for conveying different liquids to the bottom of the open sleeve is smaller than the pipe diameter of the liquid input pipe (4), and the distance between the open upper opening of the open sleeve and the bottom of the box body is not smaller than two thirds of the height of the box body.

6. The mixing reactor for automatic and rapid blending of solutions according to claim 5, characterized in that: control valves (8) are arranged on a liquid input pipe (4) and a liquid output pipe (5) of the liquid conveying pipe system (3), the top of the box body is detachably sealed through a cover plate (9), and reaction gas discharge ports (6) and liquid input pipe arrangement holes (7) are uniformly arranged on the cover plate (9).

7. The construction method for reacting the mixed liquid in the mixing reactor of claim 6, wherein: the construction method comprises the steps of inputting different types of liquid into the open sleeve through the liquid input pipe (4), mixing the liquid in the open sleeve in a weir turning mode, entering the box body to react in the weir turning process, and finally outputting the liquid to the reaction tank through the liquid output pipe (5) to complete the mixing and reaction of various liquids in the mixing reactor.

8. The construction method according to claim 7, wherein: the stay time of the mixed liquid in the box body is longer than or equal to the reaction time of various liquids.

9. The construction method according to claim 8, wherein: the reaction duration is determined by external reaction tests.

10. The construction method according to claim 9, wherein: the staying time of various liquids in the box body is controlled by the control valves arranged on the liquid output pipe (5) and the liquid input pipe (4) to control the amount of the input and/or output liquid.

Images