CN212894242U

CN212894242U - Defluorination reactor

Info

Publication number: CN212894242U
Application number: CN202021507841.9U
Authority: CN
Inventors: 梁芳
Original assignee: Shandong Luchuang Environmental Technology Co ltd
Current assignee: Shandong Luchuang Environmental Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-04-06
Anticipated expiration: 2030-07-27

Abstract

The utility model relates to a defluorination reactor, including high load treatment area and smart processing area, high load treatment area includes inlet tube, dosing pipe, pipeline mixer, mechanical mixer, mixing reactor, solid-liquid separator, basin, mud pipe, inlet tube and dosing pipe all are connected with the pipeline mixer, the pipeline mixer is connected with mixing reactor through the connecting pipe, solid-liquid separator is linked together with mixing reactor, the basin is located mixing reactor upper portion, and is linked together with mixing reactor; the sludge discharge pipe is arranged at the bottom of the high-load processing area; the fine treatment area comprises a water distribution port, a fine treatment reaction bed and a collecting pipe, the water distribution port is arranged at the outlet of the water outlet groove, and the collecting pipe is arranged at the bottom of the fine treatment bed. Integrates high-load defluorination and fine defluorination, can effectively treat wastewater with fluoride concentration up to 1500mg/L, and the fluoride in the effluent can reach below 1.0 mg/L.

Description

Defluorination reactor

Technical Field

The utility model belongs to the water treatment field, concretely relates to defluorination reactor.

Background

In modern industry, fluoride is widely used as a chemical raw material in the fields of medicines, pesticides and fine chemicals, wastewater generated in the production process of products often contains a large amount of fluoride, and the normal operation of biochemical treatment of the wastewater is seriously influenced because the fluoride has biological toxicity. Therefore, fluoride in the wastewater must be treated, and the wastewater can be discharged after meeting the requirement, and meanwhile, the influence on biochemical treatment is avoided.

At present, in the prior art, most of low-concentration fluoride (fluorine content is less than or equal to 40mg/L) in drinking water is treated, and the research on the treatment of high-concentration fluoride wastewater is very little, so that the research on a device capable of effectively treating the high-concentration fluoride wastewater is of great significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the deficiencies of the prior art, providing a defluorination reactor, collect high load defluorination and smart defluorination in an organic whole, can effectively handle the waste water that fluoride concentration reaches 1500mg/L, the fluoride that goes out water can reach below 1.0 mg/L.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a defluorination reactor comprises a high-load treatment area and a fine treatment area, wherein the high-load treatment area comprises a water inlet pipe, a dosing pipe, a pipeline mixer, a mechanical stirrer, a mixing reactor, a solid-liquid separator, a water outlet tank and a sludge discharge pipe, the water inlet pipe and the dosing pipe are both connected with the pipeline mixer, the pipeline mixer is connected with the mixing reactor through a connecting pipe, the mechanical stirrer and the pipeline mixer are both arranged at the top of the mixing reactor, the solid-liquid separator is communicated with the mixing reactor, and the water outlet tank is arranged at the upper part of the mixing reactor and is communicated with the mixing reactor; the sludge discharge pipe is arranged at the bottom of the high-load processing area; the fine treatment area comprises a water distribution port, a fine treatment reaction bed and a collecting pipe, the water distribution port is arranged at the outlet of the water outlet groove, and the collecting pipe is arranged at the bottom of the fine treatment bed.

Furthermore, the bottom of the mixing reactor is provided with a water distribution bell mouth, which is beneficial to the uniform and stable outflow of the waste water after reaction;

furthermore, mud hoppers are arranged at the bottoms of the solid-liquid separator and the mixing reactor and used for discharging separated solid matters;

furthermore, two fine processing areas are arranged, so that the fluorine removal efficiency is improved, and further, the fine processing areas are symmetrically distributed on two sides of the high-load processing area;

furthermore, the fine processing area also comprises a restraining grid which is arranged at the top of the fine processing area and used for preventing the loss of the filler;

furthermore, the fine treatment reaction bed consists of activated alumina and polyhedral hollow spheres, the activated alumina is a porous solid material with high dispersity, has a large surface area and good adsorption performance, and the polyhedral hollow spheres have the characteristics of large specific surface area, small resistance and large operation elasticity, and can fully improve the adsorption performance under the synergistic action of the activated alumina and the polyhedral hollow spheres so as to improve the fluorine removal performance;

furthermore, the mechanical stirrer is a turbine stirrer, is not influenced by the viscosity of liquid, can realize a good stirring effect and promotes the full reaction of the wastewater and the medicament;

further, the mixing reactor and the solid-liquid separator are vertically arranged, one part of the solid-liquid separator is positioned in the mixing reactor, solid-liquid separation can be carried out after the fluorine-containing wastewater and the medicament react, the treatment efficiency is improved, and the time is saved.

The utility model discloses one or more concrete embodiment have gained at least following effect:

(1) the high-load treatment area can realize the defluorination of high-concentration fluoride (1500mg/L), the fluoride of the effluent can reach below 10mg/L, and the fluoride of the effluent of the fine treatment area can reach below 1.0 mg/L;

(2) the method integrates high-load treatment and fine treatment, and avoids the defects of frequent filler regeneration, complex operation and high operating cost caused by overhigh fluoride in the conventional defluorination equipment;

(3) small occupied area, flexible arrangement, simple operation and high fluorine removal efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a front view of the overall structure of a defluorination reactor according to an embodiment of the present invention;

in the figure: 1. a water inlet pipe; 2. a medicine feeding pipe; 3. a pipeline mixer; 4. a mechanical stirrer; 5. a mixing reactor; 6. a solid-liquid separator; 7. a water outlet groove; 8. a water distribution port; 9. a fine treatment reaction bed; 10. a collection pipe; 11. a containment grid; 12. a sludge discharge pipe; 13. a connecting pipe; 14. a mud bucket.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In a typical embodiment of the present invention, as shown in fig. 1, a defluorination reactor comprises a high load processing area and a fine processing area, wherein the high load processing area comprises a water inlet pipe 1, a dosing pipe 2, a pipeline mixer 3, a mechanical stirrer 4, a mixing reactor 5, a solid-liquid separator 6, a water outlet tank 7 and a sludge discharge pipe 12, the water inlet pipe 1 and the dosing pipe 2 are both connected with the pipeline mixer 3, the pipeline mixer 3 is connected with the mixing reactor 5 through a connecting pipe 13, the mechanical stirrer 4 and the pipeline mixer 3 are both arranged at the top of the mixing reactor 5, the solid-liquid separator 6 is communicated with the mixing reactor 5, and the water outlet tank 7 is arranged at the upper part of the mixing reactor 5 and is communicated with the mixing reactor 5; the sludge discharge pipe 12 is arranged at the bottom of the high-load treatment area; the fine treatment area comprises a water distribution port 8, a fine treatment reaction bed 9 and a collecting pipe 10, the water distribution port 8 is arranged at the outlet of the water outlet groove 7, and the collecting pipe 10 is arranged at the bottom of the fine treatment bed 9.

Furthermore, the bottom of the mixing reactor 5 is provided with a water distribution bell mouth, which is beneficial to the uniform and stable outflow of the wastewater after reaction;

further, the bottoms of the solid-liquid separator 6 and the mixing reactor 5 are provided with mud hoppers 14 for discharging separated solid matters;

furthermore, the fine processing area also comprises a restraining grid 11 which is arranged at the top of the fine processing area and used for preventing the loss of the filler;

further, the fine treatment reaction bed 9 consists of active alumina and polyhedral hollow spheres;

further, the mechanical stirrer 4 is a turbine stirrer;

further, the mixing reactor 5 and the solid-liquid separator 6 are vertically disposed, and a part of the solid-liquid separator 6 is located inside the mixing reactor 5.

The working principle is as follows: the utility model discloses defluorination reactor adopts chemical precipitation and chemisorption's principle to remove fluorine, at first high concentration fluorine-containing waste water passes through inlet tube 1 and gets into mixed reactor 5, the medicament that carries with adding pencil 2 passes through pipe mixer 3 and takes place the chemical reaction under mechanical mixer 4's stirring effect, make the soluble fluoride in the waste water turn into insoluble solid matter, a small part waste water that does not handle through solid-liquid separator after the reaction flows through the bottom water distribution horn mouth of mixed reactor 5, waste water after the reaction can produce a large amount of fluorine-containing solid matter, under solid-liquid separator's synergism, waste water can separate with the water because of the specific gravity of solid matter is great in the in-process that upwards flows, and fall into mud bucket 14 of mixed reactor and solid-liquid separator bottom, rethread mud pipe 12 discharge reactor, and most waste water that handles through solid-liquid separator after the reaction then discharges the high load district through outlet trough 7 on reactor upper portion, thereby realizing the first-step defluorination of the high-concentration fluorine-containing wastewater; the effluent of the high-load processor zone flowing out through the water outlet tank automatically flows into a fine treatment zone through a water distribution port 8, the fine treatment zone is provided with a fine treatment reaction bed consisting of activated alumina and multi-surface hollow spheres, residual fluoride in the wastewater is adsorbed and fixed by the filler of the fine treatment reaction bed, the fine treatment reaction bed needs to be backwashed regularly after being saturated, and a restraining grid is arranged at the top of the fine treatment zone to prevent the loss of the filler; the treated wastewater is collected by a collecting pipe at the bottom of the reaction bed and discharged out of the reactor, so that the second-step defluorination of the fluorine-containing wastewater is realized, and the fluoride in the effluent is ensured to be lower than 1.0 mg/L.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A defluorination reactor is characterized by comprising a high-load treatment area and a fine treatment area, wherein the high-load treatment area comprises a water inlet pipe, a chemical feeding pipe, a pipeline mixer, a mechanical stirrer, a mixing reactor, a solid-liquid separator, a water outlet tank and a sludge discharge pipe, the water inlet pipe and the chemical feeding pipe are both connected with the pipeline mixer, the pipeline mixer is connected with the mixing reactor through a connecting pipe, the mechanical stirrer and the pipeline mixer are both arranged at the top of the mixing reactor, the solid-liquid separator is communicated with the mixing reactor, and the water outlet tank is arranged at the upper part of the mixing reactor and is communicated with the mixing reactor; the sludge discharge pipe is arranged at the bottom of the high-load processing area; the fine treatment area comprises a water distribution port, a fine treatment reaction bed and a collecting pipe, the water distribution port is arranged at the outlet of the water outlet groove, and the collecting pipe is arranged at the bottom of the fine treatment bed.

2. The defluorination reactor of claim 1, wherein a water distribution bell mouth is provided at the bottom of said mixing reactor.

3. The defluorination reactor of claim 1, wherein a mud bucket is provided at the bottom of said solid liquid separator and mixing reactor.

4. The defluorination reactor of claim 1, wherein there are two polishing zones.

5. The defluorination reactor of claim 1, wherein said polishing zones are symmetrically disposed on either side of the high load treatment zone.

6. The fluorine removal reactor of claim 1, wherein the polishing zone further comprises a containment grid.

7. The fluorine removal reactor of claim 1, wherein the polishing reaction bed is comprised of activated alumina and polyhedral hollow spheres.

8. The defluorination reactor of claim 1, wherein said mechanical agitator is a turbine agitator.

9. The defluorination reactor of claim 1, wherein said mixing reactor and solid-liquid separator are vertically disposed, and a portion of the solid-liquid separator is located within the mixing reactor.

10. The defluorination reactor of claim 6, wherein said containment grid is positioned at the top of the polishing zone.