CN212369655U - Red mud separating device for producing alumina by Bayer process - Google Patents
Red mud separating device for producing alumina by Bayer process Download PDFInfo
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- CN212369655U CN212369655U CN202020502854.0U CN202020502854U CN212369655U CN 212369655 U CN212369655 U CN 212369655U CN 202020502854 U CN202020502854 U CN 202020502854U CN 212369655 U CN212369655 U CN 212369655U
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Abstract
The utility model is suitable for the field of red mud separation devices, and provides a Bayer process alumina production red mud separation device, which comprises a tank body, a mud outlet, a first flange, a spiral feeder, a second flange, a boss, an inclined plate group, a cylindrical through hole, a feeding pipe, a first liquid outlet, a second liquid outlet, a third flange, a filter screen and support legs; the utility model has the advantages that: through the cooperation of a mud outlet and the spiral feeder, the red mud can be discharged in time without causing blockage, the filtering effect is improved through the filtering effect of the double-layer filter screen, the separation of the red mud and the solution is realized, and the structure is simple.
Description
Technical Field
The utility model belongs to red mud separator field especially relates to bayer process aluminium oxide production red mud separator.
Background
The bayer process is a widely used industrial chemical process for producing alumina from bauxite. In 1887, the invention was invented by austria engineers karl joseph bayer, whose basic principle was to convert aluminum hydroxide into sodium aluminate with concentrated sodium hydroxide solution, to re-precipitate aluminum hydroxide by dilution and addition of aluminum hydroxide seed crystal, and to reuse the remaining sodium hydroxide solution for the treatment of the next batch of bauxite, thus realizing continuous production. Today, 95% of the world's aluminum companies are producing alumina using the bayer process.
Red mud, also known as red mud, is an industrial solid waste discharged from the extraction of alumina from bauxite. Generally, the iron oxide is contained in a large amount, and the appearance of the iron oxide is similar to that of red soil, so the iron oxide is named. But some are brown and even off-white in color due to less iron oxide. The red mud is an insoluble residue which can be divided into sintering process red mud, Bayer process red mud and combination process red mud, and the main component is SiO2、Al2O3、CaO、Fe2O3And the like. With the development of aluminum industry and the reduction of bauxite grade, the red mud amount will be larger and larger, and the red mud is an alkaline substance, and with the showering of rainwater, alkali in the red mud will be dissolved out, possibly polluting surface water and underground water, so the comprehensive utilization of the red mud is becoming an increasingly important research subject. However, the existing red mud separation device has poor separation effect and is easy to block.
SUMMERY OF THE UTILITY MODEL
The utility model provides a red mud separator for Bayer process alumina production, which aims to solve the problems of poor separation effect and easy blockage in the background technology.
The utility model discloses a realize like this, Bayer process alumina production red mud separator, including screw feeder and swash plate group, its characterized in that, the bottom of the jar body is formed with a mud outlet, the below of mud outlet is formed with a first flange, install one below of first flange screw feeder, install a second flange on screw feeder's the feed inlet, the intermediate position of the inner wall of the jar body is formed with a boss, the top of boss is provided with one swash plate group, swash plate group's central point puts and is formed with a cylinder through-hole, wear to be equipped with an inlet pipe in the cylinder through-hole, be formed with a first drain pipe on the left side of the top of the jar body, a second drain pipe is installed to the below of first drain pipe, a third drain pipe is installed to the below of second drain pipe, the lower extreme of first drain pipe, a round hole, the bottom of the jar body is connected to the bottom of the body, The upper and lower end of second drain pipe and the upper end of third drain pipe respectively are formed with a third flange, first drain pipe with between the second drain pipe with respectively install a filter screen between the third drain pipe.
Further, the screw feeder is welded to the second flange.
Furthermore, the tank body, the feeding pipe, the first liquid outlet pipe, the second liquid outlet pipe and the third liquid outlet pipe are made of stainless steel materials.
Further, the lower end of the tank body is conical.
Furthermore, the inclined plate group is made of stainless steel materials with polished surfaces.
Furthermore, the position of the discharge port of the spiral feeder is higher than the position of the upper end of the tank body.
Furthermore, three support legs are evenly arranged below the tank body along the circumferential direction.
The utility model has the advantages that: through the cooperation of a mud outlet and the spiral feeder, the red mud can be discharged in time without causing blockage, the filtering effect is improved through the filtering effect of the double-layer filter screen, the separation of the red mud and the solution is realized, and the structure is simple.
Drawings
Fig. 1 is a schematic diagram of the overall structure provided by the present invention;
fig. 2 is a schematic view of a cross-sectional structure provided by the present invention;
fig. 3 is a schematic structural view of the swash plate assembly provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, the red mud separation device for producing aluminum oxide by bayer process includes a spiral feeder 4 and an inclined plate group 7, and is characterized in that a mud outlet 2 is formed at the bottom of a tank body 1, a first flange 3 is formed below the mud outlet 2, the spiral feeder 4 is installed below the first flange 3, a second flange 5 is installed at a feed inlet of the spiral feeder 4, a boss 6 is formed at the middle position of the inner wall of the tank body 1, the inclined plate group 7 is arranged above the boss 6, a cylindrical through hole 8 is formed at the center position of the inclined plate group 7, a feed pipe 9 is inserted into the cylindrical through hole 8, a first drain pipe 10 is formed on the left side of the upper part of the tank body 1, a second drain pipe 11 is installed below the first drain pipe 10, a third drain pipe 12 is installed below the second drain pipe 11, and third flanges 13 are respectively formed at the lower end of the first drain pipe 10, the upper end of the second drain pipe 11 and the upper end of the third drain pipe 12, a filter screen 14 is respectively arranged between the first liquid outlet pipe 10 and the second liquid outlet pipe 11, and between the second liquid outlet pipe 11 and the third liquid outlet pipe 12.
The spiral feeder 4 is welded with the second flange 5, and the welding connection is more stable.
The lower end of the tank body 1 is conical, so that the red mud is conveniently concentrated towards the mud outlet 2.
The inclined plate group 7 is made of stainless steel materials with polished surfaces, the polished surfaces are smooth, the red mud can conveniently slide down from the inclined plate, and the stainless steel materials are rustproof.
The position of the discharge port of the spiral feeder 4 is higher than the position of the upper end of the tank body 1, and according to the communicating vessel principle, liquid cannot leak out from the discharge port of the spiral feeder 4.
Three support legs 15 are evenly arranged on the lower portion of the tank body 1 along the circumferential direction, and support effect is provided for the tank body 1.
It should be noted that the screw feeder 4 and the inclined plate group 7 are prior art and are not described herein.
When the device is used, mixed slurry enters the lower part of the tank body 1 from the feeding pipe 9, when the mixed slurry rises to the position of the inclined plate group 7, the direction of the slurry is changed, the mixed slurry enters the inclined plate group 7 to be precipitated, red mud is precipitated and accumulated to a certain thickness at the position of the inclined plate group 7 and automatically slides to the mud outlet 2 by self weight, the red mud is discharged through the spiral feeder 4, and the slurry which is not precipitated enters the first liquid outlet pipe 10, the second liquid outlet pipe 11 and the third liquid outlet pipe 12, is filtered by the double-layer filter screen 14 and is discharged and collected through the third liquid outlet pipe 12.
The utility model has the advantages that: through the cooperation of mud outlet 2 and feed screw 4, can in time discharge red mud, can not cause the jam, through the filtering action of double-deck filter screen 14, improved the filter effect, realized the separation of red mud and solution, simple structure.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The red mud separation device for alumina production by a Bayer process comprises a spiral feeder (4) and an inclined plate group (7), and is characterized in that a mud outlet (2) is formed at the bottom of a tank body (1), a first flange (3) is formed below the mud outlet (2), the spiral feeder (4) is installed below the first flange (3), a second flange (5) is installed at a feed inlet of the spiral feeder (4), a boss (6) is formed in the middle of the inner wall of the tank body (1), the inclined plate group (7) is arranged above the boss (6), a cylindrical through hole (8) is formed in the center of the inclined plate group (7), a feed pipe (9) penetrates through the cylindrical through hole (8), and a first liquid outlet pipe (10) is formed on the left side of the top of the tank body (1), a second drain pipe (11) is installed to the below of first drain pipe (10), a third drain pipe (12) is installed to the below of second drain pipe (11), the lower extreme of first drain pipe (10) the upper and lower end of second drain pipe (11) and the upper end of third drain pipe (12) respectively are formed with a third flange (13), first drain pipe (10) with between second drain pipe (11) with respectively install a filter screen (14) between third drain pipe (12).
2. The Bayer process alumina production red mud separation device according to claim 1, wherein the screw feeder (4) is welded to the second flange (5).
3. The red mud separation device for Bayer process alumina production according to claim 1, wherein the tank body (1), the feed pipe (9), the first liquid outlet pipe (10), the second liquid outlet pipe (11) and the third liquid outlet pipe (12) are made of stainless steel.
4. The red mud separation device for alumina production by the Bayer process according to claim 3, wherein the lower end of the tank body (1) is conical.
5. The red mud separation device for producing alumina by the Bayer process according to claim 1, wherein the inclined plate group (7) is made of stainless steel material with polished surface.
6. The red mud separation device for alumina production by the Bayer process according to claim 1, wherein the discharge hole of the screw feeder (4) is higher than the upper end of the tank body (1).
7. The red mud separation device for alumina production by the Bayer process according to claim 1, wherein three support legs (15) are evenly arranged below the tank body (1) along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020502854.0U CN212369655U (en) | 2020-04-08 | 2020-04-08 | Red mud separating device for producing alumina by Bayer process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020502854.0U CN212369655U (en) | 2020-04-08 | 2020-04-08 | Red mud separating device for producing alumina by Bayer process |
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| CN212369655U true CN212369655U (en) | 2021-01-19 |
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| CN202020502854.0U Active CN212369655U (en) | 2020-04-08 | 2020-04-08 | Red mud separating device for producing alumina by Bayer process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332928A (en) * | 2021-05-20 | 2021-09-03 | 萍乡市华顺环保化工填料有限公司 | From alumina preparation facilities who takes garbage collection |
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2020
- 2020-04-08 CN CN202020502854.0U patent/CN212369655U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332928A (en) * | 2021-05-20 | 2021-09-03 | 萍乡市华顺环保化工填料有限公司 | From alumina preparation facilities who takes garbage collection |
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