CN214390161U - Efficient anti-settling reaction device - Google Patents

Abstract

The utility model relates to the technical field of wet metallurgy, in particular to an efficient anti-settling reaction device, which comprises a horizontal reaction tank, wherein one end of the reaction tank is provided with a liquid inlet, the other end of the reaction tank is provided with a liquid outlet, the inner wall of the lower half part of the reaction tank is provided with an air inlet pipeline, the air inlet pipeline is provided with a plurality of air inlets, and the air inlet pipeline is communicated with a high-pressure air inlet pump outside the reaction tank; the top of the reaction tank is provided with an air outlet, and a stirring device is arranged in the reaction tank and is arranged above the air inlet pipeline. Through agitating unit's mechanical stirring and air inlet spun high-pressure gas stirring, make the utility model has the advantages of the thick liquid is difficult for subsiding and gaseous and thick liquid reaction is abundant.

Description

Efficient anti-settling reaction device

Technical Field

The utility model belongs to the technical field of hydrometallurgy, a reaction unit is prevented subsiding by efficient particularly.

Background

The direct discharge of industrial waste or ore or tailings material generated during operation in steel making plants, power plants or the electrolytic aluminum industry can lead to soil, water and atmosphere related pollution and other derived environmental problems if not properly treated, used or utilized. In the steel manufacturing industry, if the amount of sulfur and phosphorus in pig iron is large, a large amount of quicklime (limestone or dolomite) must be added during smelting. How to recover and extract calcium carbonate and magnesium carbonate from industrial waste or produce calcium carbonate and magnesium carbonate by carbon dioxide mineralization can fully and reasonably utilize the waste, and the waste is changed into valuable, so that great technical breakthrough is faced.

Aiming at the problems, through search, the Chinese invention patent is as follows: a carbon dioxide based hydrometallurgical multistage reaction and separation system (application No. 202010507901.5, filing No. 2020-06-05) which discloses a carbon dioxide based hydrometallurgical multistage reaction and separation system comprising: the raw material prewashing device is used for continuously adding industrial waste or ore raw materials or tailings, reagents and water into the raw material prewashing device according to a certain proportion and fully mixing; the reaction device is used for continuously pumping the slurry into the reaction device, continuously pumping carbon dioxide into the reaction device and continuously discharging the reacted slurry; the multistage solid-liquid separation device is used for carrying out multistage solid-liquid separation on the slurry, and unreacted solid particles obtained by the solid-liquid separation are circulated to the pre-washing device; a third product preparation device, which is used for preparing calcium and magnesium products by the target calcium ions and magnesium ions contained in the clear liquid; and the recovered water is circulated to the system through the recovered water circulating device. Continuous reaction can be realized to this application, realizes the maximize of handling capacity, also provides probably for the multistage circulation reaction, has also reduced the loss of carbon dioxide in the unloading process under the batch type reaction simultaneously.

However, the disadvantages of this application are: because the reaction device is continuously driven with the slurry and continuously discharges the reacted slurry, the reaction time of the slurry and the carbon dioxide in the reaction device is not easy to control, the effect of full reaction is difficult to achieve, and the slurry is easy to settle in the reaction device, so that the normal operation of the reaction device is influenced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem of how to prevent the thick liquids and how to let gas and thick liquids fully react in reaction unit now.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does: an efficient anti-settling reaction device comprises a horizontal reaction tank, wherein one end of the reaction tank is provided with a liquid inlet, the other end of the reaction tank is provided with a liquid outlet, an air inlet pipeline is arranged on the inner wall of the lower half part of the reaction tank, a plurality of air inlets are formed in the air inlet pipeline, and the air inlet pipeline is communicated with a high-pressure air inlet pump outside the reaction tank; the reaction tank is characterized in that a gas outlet is formed in the top of the reaction tank, a stirring device is arranged in the reaction tank, and the stirring device is arranged above the gas inlet pipeline.

Preferably, the bottom of retort is the curved surface form setting, just the bottom undercut of retort, the admission line includes intake pipe one and intake pipe two that set up along retort length direction, through the connecting tube intercommunication between intake pipe one and the intake pipe two, just intake pipe one and intake pipe two symmetries set up in the both sides of plane of symmetry an, plane of symmetry an does the plane of symmetry on retort perpendicular to ground. And the plurality of air faucets arranged in the first air inlet pipe and the plurality of air faucets arranged in the second air inlet pipe are in one-to-one correspondence.

Preferably, agitating unit include the mixed stirring rake that a plurality of was arranged along retort length direction and one set up in the play liquid stirring rake of liquid outlet top, mixed stirring rake is used for driving the thick liquid and upwards flows, it is used for driving the thick liquid and flows to the retort bottom to go out the liquid stirring rake, just the liquid outlet sets up in the bottom of retort terminal surface.

Preferably, the mixing and stirring paddle comprises a stirring blade and a plurality of stirring protrusions arranged on the stirring blade, and the stirring protrusions are used for stirring bubbles in the cutting slurry.

Preferably, the plurality of air nozzles arranged below the plurality of mixing paddles eject gas in a direction towards the bottom of the reaction tank.

Preferably, the plurality of air nozzles arranged below the liquid outlet stirring paddle eject gas in a direction towards the top of the reaction tank.

Preferably, the air nozzles are distributed on the air inlet pipeline, the calibers of the air nozzles are different, and the calibers of the air nozzles are gradually reduced along the direction close to the liquid outlet.

Preferably, the air outlet is provided with a pressure limiting valve.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model discloses an efficient anti-settling reaction device, which comprises a horizontal reaction tank, wherein one end of the reaction tank is provided with a liquid inlet, the other end of the reaction tank is provided with a liquid outlet, the inner wall of the lower half part of the reaction tank is provided with an air inlet pipeline, the air inlet pipeline is provided with a plurality of air inlets, and the air inlet pipeline is communicated with a high-pressure air inlet pump outside the reaction tank; the top of the reaction tank is provided with an air outlet, and a stirring device is arranged in the reaction tank and is arranged above the air inlet pipeline. Through agitating unit's mechanical stirring and air inlet spun high-pressure gas stirring, make the utility model has the advantages of the thick liquid is difficult for subsiding and gaseous and thick liquid reaction is abundant.

Drawings

FIG. 1 is a schematic structural view of a reaction tank of the present invention;

FIG. 2 is a schematic structural view of a mixing paddle according to the present invention;

FIG. 3 is a schematic structural view of the liquid-discharging stirring paddle of the present invention;

FIG. 4 is a schematic view of the structure of the blade-shaped stirring protrusion of the present invention;

fig. 5 is a schematic view of the barb-shaped stirring protrusion structure of the present invention.

The reference numerals in the schematic drawings illustrate:

100. a reaction tank; 110. a liquid inlet; 120. a liquid outlet; 130. an air intake duct; 131. an air tap; 132. A first air inlet pipe; 133. a second air inlet pipe; 140. an air outlet; 141. a pressure limiting valve; 200. a stirring device; 210. Mixing and stirring paddles; 211. stirring blades; 212. stirring the bulges; 220. and (5) discharging liquid and stirring the liquid.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but which are provided so as to render the disclosure of the invention more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 5, the present embodiment provides a technical solution: an efficient anti-settling reaction device comprises a horizontal reaction tank 100, wherein one end of the reaction tank 100 is provided with a liquid inlet 110, the other end of the reaction tank 100 is provided with a liquid outlet 120, the inner wall of the lower half part of the reaction tank 100 is provided with a gas inlet pipeline 130, the gas inlet pipeline 130 is provided with a plurality of gas inlets, the gas inlet pipeline 130 is communicated with a high-pressure gas inlet pump outside the reaction tank 100, the high-pressure gas inlet pump pumps high-pressure gas into the gas inlet pipeline 130 and sprays the gas from the gas inlets to stir slurry in the reaction tank 100, so that the slurry can be prevented from settling, and the high-pressure gas can stir the slurry, so that the high-pressure gas and the slurry can be promoted to react quickly; the gas outlet 140 is arranged at the top of the reaction tank 100, the stirring device 200 is arranged in the reaction tank 100, the stirring device 200 is used for stirring slurry in the reaction tank 100, the slurry is prevented from settling, the stirring device 200 is arranged above the gas inlet pipeline 130, gas sprayed out from the gas inlet pipeline 130 is converged into bubbles below the stirring device 200 to rise, and the bubbles pass through the stirring device 200, so that the stirring device 200 can play a certain cutting role on the bubbles, the size of the bubbles is reduced, the bubbles can react with the slurry more fully in the rising process, meanwhile, the mechanical stirring effect of the stirring device 200 can accelerate the reaction of the bubbles and the slurry, the reaction time of the gas and the slurry is shortened, and the reaction of the gas and the slurry is more fully realized.

In a preferred scheme, the bottom of the reaction tank 100 is arranged in a curved surface shape, the bottom of the reaction tank 100 is recessed downward, the air inlet pipe 130 comprises a first air inlet pipe 132 and a second air inlet pipe 133 which are arranged along the length direction of the reaction tank 100, the first air inlet pipe 132 and the second air inlet pipe 133 are communicated through a connecting pipe, so that air pressure in the first air inlet pipe 132 and the second air inlet pipe 133 is kept balanced, the first air inlet pipe 132 and the second air inlet pipe 133 are symmetrically arranged on two sides of a symmetrical plane a, the symmetrical plane a is a symmetrical plane of the reaction tank 100, which is perpendicular to the ground, one end of the air inlet pipe 130 is communicated with a high-pressure air inlet pump, and the other end portions of the air inlet pipe 130 are hermetically arranged, so that the same air pressure is maintained at all positions in the air inlet pipe 130; the plurality of air nozzles 131 arranged in the first air inlet pipe 132 and the plurality of air nozzles 131 arranged in the second air inlet pipe 133 are arranged in a one-to-one correspondence manner.

In a preferred embodiment, the stirring apparatus 200 includes a plurality of mixing paddles 210 arranged along the length direction of the reaction tank 100 and a liquid outlet paddle 220 disposed above the liquid outlet port 120, the mixing paddles 210 are used to drive the slurry to flow upward, the liquid outlet paddle 220 is used to drive the slurry to flow toward the bottom of the reaction tank 100, and the liquid outlet port 120 is disposed at the bottom of the end surface of the reaction tank 100.

In a preferred scheme, the mixing paddle 210 includes a stirring blade 211 and a plurality of stirring protrusions 212 arranged on the stirring blade 211, the stirring protrusions 212 are used for stirring bubbles in the cutting slurry, and the stirring protrusions 212 are arranged in a barb shape, a blade shape or a barb shape, so that the effect of cutting bubbles is improved.

In a preferred embodiment, the plurality of air nozzles 131 disposed below the plurality of mixing paddles 210 are disposed in a direction toward the bottom of the reaction tank 100.

In the reaction process, a plurality of that the admission line 130 symmetry set up air cock 131 is to retort 100 bottom blowout high-pressure gas to form offset in retort 100 bottom, because retort 100 bottom is the concave curved surface setting, makes on the one hand the air current of 100 bottom offsets of retort 100 can form ascending updraft at the lowest of retort 100 bottom, drives the thick liquid and upwards flows simultaneously, and the other hand is the most easy deposit thick liquid in retort 100 bottom that the concave curved surface set up, consequently retort 100 bottom deposit can flow at the mixed stirring rake 210 of the offset of high-pressure air current upper direction down, and the air current of offset simultaneously strikes in retort 100 bottom and assembles into great bubble and upwards float fast for great bubble, deposit and thick liquid flow direction simultaneously mix stirring rake 210.

When great bubble, deposit and thick liquid flow direction mix stirring rake 210, the stirring leaf 211 of mixing stirring rake 210 mixes the stirring to great bubble, deposit and thick liquid, and the stirring leaf 211 is certain angle setting simultaneously, makes the stirring leaf 211 can promote at the in-process of stirring the thick liquid upwards flows, guarantees bubble, deposit and the thick liquid flow direction that can be better of mixing stirring rake 210 below mix stirring rake 210.

In addition the protruding 212 of a plurality of densely covered stirring that sets up on the stirring leaf 211 is favorable to improving the stirring leaf 211 is to the cutting effect of bubble and the mixing action to the thick liquid, makes the process the bubble diameter behind the mixing stirring rake 210 is littleer, and the bubble is more abundant with the mixture of thick liquid for the reaction of bubble and thick liquid is more abundant, and efficiency is higher.

In a preferable scheme, the air outlet directions of the air nozzles 131 arranged below the liquid outlet stirring paddle 220 are arranged towards the top of the reaction tank 100. In the liquid discharging process, the liquid discharging stirring paddle 220 pushes the slurry to the bottom of the reaction tank 100, so that the slurry after full reaction flows to the bottom of the reaction tank 100 close to the liquid outlet 120, the slurry after full reaction is favorably discharged, and meanwhile, the slurry flowing to the bottom of the reaction tank 100 has a certain scouring effect on the bottom of the reaction tank 100, so that the slurry after full reaction is prevented from settling when being discharged, and the liquid outlet 120 is prevented from being blocked; meanwhile, the air nozzle 131 below the liquid outlet stirring paddle 220 blows air to the top of the reaction tank 100, so that the bubbles rising upwards are staggered with the slurry pushed downwards by the liquid outlet stirring paddle 220, and the discharged slurry is prevented from containing a large amount of gas, and the gas waste is avoided.

In a preferred embodiment, the apertures of the plurality of air nozzles 131 distributed in the air inlet pipe 130 are different in size, and the aperture size thereof gradually decreases along a direction close to the liquid outlet 120, because the reaction between the slurry just entering the reaction tank 100 and the gas is more severe, the more gas that the slurry just entering the reaction tank 100 can react and dissolve, the aperture of the plurality of air nozzles 131 close to the liquid inlet 110 is larger, so that the more gas and the larger gas flow ejected from the air nozzles 131 close to the liquid inlet 110 are, which is beneficial to the rapid reaction between the gas and the slurry; slurry close to the liquid outlet 120 has fully reacted with gas, so the caliber of the gas nozzle 131 close to the liquid outlet 120 is smaller, so that the gas sprayed from the gas nozzle 131 close to the liquid outlet 120 is smaller, the gas flow is slower, and bubbles with smaller volume can be formed, and furthermore, the gas nozzle 131 close to the liquid outlet 120 sprays gas towards the top of the reaction tank 100, a certain bubble protection layer is formed above the liquid outlet stirring paddle 220, so that a small amount of slurry which is not fully reacted can flow to the liquid outlet 120 under the driving of the liquid outlet stirring paddle 220 after further reaction above the liquid outlet stirring paddle 220, and thus the slurry from the liquid outlet 120 is fully reacted.

In a preferred embodiment, the gas outlet 140 is provided with a pressure limiting valve 141, and the pressure limiting valve 141 is used for controlling the pressure in the reaction tank 100 to be in a larger state, so that the volume of the bubbles is reduced under the action of high pressure, the contact area with the slurry is increased, and the reaction rate of the gas and the slurry is provided.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (8)

1. The utility model provides an efficient prevents subsiding reaction unit, includes horizontal retort (100), retort (100) one end is provided with inlet (110), and the other end is provided with liquid outlet (120), its characterized in that: an air inlet pipeline (130) is arranged on the inner wall of the lower half part of the reaction tank (100), a plurality of air inlets are formed in the air inlet pipeline (130), and the air inlet pipeline (130) is communicated with a high-pressure air inlet pump outside the reaction tank (100); the top of the reaction tank (100) is provided with an air outlet (140), a stirring device (200) is arranged in the reaction tank (100), and the stirring device (200) is arranged above the air inlet pipeline (130).

2. The high-efficiency anti-settling reaction device as claimed in claim 1, wherein: the bottom of retort (100) is the curved surface form setting, just the bottom undercut of retort (100), admission line (130) include intake pipe (132) and intake pipe two (133) that set up along retort (100) length direction, communicate through the connecting tube between intake pipe (132) and intake pipe two (133), just intake pipe (132) and intake pipe two (133) symmetry set up in the both sides of plane of symmetry an, plane of symmetry an does the plane of symmetry on retort (100) perpendicular to ground, set up in a plurality of air cock (131) of intake pipe (132) with a plurality of air cock (131) one-to-one setting of intake pipe two (133).

3. A high efficiency anti-settling reaction device as defined in claim 2, wherein: agitating unit (200) include a plurality of along retort (100) length direction arranged mix stirring rake (210) and one set up in go out liquid stirring rake (220) of liquid outlet (120) top, mix stirring rake (210) and be used for driving the thick liquid and upwards flow, it is used for driving thick liquid to flow to retort (100) bottom to go out liquid stirring rake (220), just liquid outlet (120) set up in the bottom of retort (100) terminal surface.

4. A high efficiency anti-settling reaction device as defined in claim 3, wherein: mix stirring rake (210) including stirring leaf (211) with set up in a plurality of stirring arch (212) on stirring leaf (211), stirring arch (212) are arranged in stirring the bubble in the cutting thick liquid.

5. A high efficiency anti-settling reaction device as defined in claim 3, wherein: the gas nozzles (131) are arranged below the mixing paddles (210), and the gas spraying direction of the gas nozzles is towards the bottom of the reaction tank (100).

6. A high efficiency anti-settling reaction device as defined in claim 3, wherein: the gas nozzles (131) arranged below the liquid outlet stirring paddle (220) are arranged in the direction of spraying gas towards the top of the reaction tank (100).

7. A high efficiency anti-settling reaction device as defined in claim 2, wherein: the calibers of the plurality of air nozzles (131) distributed on the air inlet pipeline (130) are different in size, and the calibers are gradually reduced along the direction close to the liquid outlet (120).

8. The high-efficiency anti-settling reaction device as claimed in claim 1, wherein: the air outlet (140) is provided with a pressure limiting valve (141).

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