CN217103096U - Feeding device of dissolution unit in alumina production - Google Patents
Feeding device of dissolution unit in alumina production Download PDFInfo
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- CN217103096U CN217103096U CN202221072245.1U CN202221072245U CN217103096U CN 217103096 U CN217103096 U CN 217103096U CN 202221072245 U CN202221072245 U CN 202221072245U CN 217103096 U CN217103096 U CN 217103096U
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Abstract
The utility model relates to a dissolve out unit feed arrangement in alumina production belongs to alumina production technical field, has solved the secondary and has joined in marriage that mother liquor and ore pulp mix inhomogeneous leads to dissolving out technical problem such as unstable, dissolve out efficiency decline. The solution is as follows: a feeding device of a dissolving-out unit in alumina production comprises a desilication tank, a static mixing device, a diaphragm pump, an evaporation secondary mother liquor and a control system; static mixing arrangement includes support, hybrid tube and four group's mixing unit, the hybrid tube is fixed to be located the support top surface, the hybrid tube includes the same first horizontal pipeline of internal diameter, slope pipeline and second horizontal pipeline, the mixing unit includes two sets of semiellipse plates and two sets of triangle-shaped boards, the utility model discloses well static mixing arrangement's setting for the desiliconization ore pulp is joined in marriage the abundant homogeneous mixing of mother liquor with the secondary, has improved the stability of joining in marriage the alkali greatly, guarantees to dissolve out the effect, is favorable to the reduction that the ore consumed the alkali simultaneously.
Description
Technical Field
The utility model belongs to the technical field of alumina production, concretely relates to dissolve out unit feed arrangement in alumina production.
Background
The dissolution machine set is used as a core link of alumina production, determines the output of the whole production system, and the stable and economic operation of the dissolution system is the pursuit of production of each family in the industry. The traditional process is that diaphragm pump feeding is then beaten to the unit of dissolving out, then after 10 grades preheat +2 grades of new steam heating raise the temperature to 260 ℃, after 45 ~ 60 minutes of the detention, through ten grades of flash distillations, the cooling step-down is carried out, accomplishes whole dissolving out process.
The original feeding mode is that the lower part of the desilication tank discharges materials, the secondary mother liquor distribution pipe for evaporation is communicated with the discharge pipe of the desilication tank, mother liquor and desilication ore pulp respectively enter three diaphragm pumps through a mother pipeline, the secondary mother liquor distribution and desilication ore pulp are unevenly mixed under the influence of different positions of the feed pipe in the mother pipeline, the influence on dissolution is unstable, the amount of the prepared mother liquor is large, so that alkali can not completely participate in the reaction, the alkali consumption is increased, the dissolution effect is reduced due to the insufficient prepared mother liquor, and the ore consumption is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a dissolve out unit feed arrangement in alumina production, solved the secondary and joined in marriage the mother liquor and the ore pulp mixes inhomogeneous and lead to dissolving out technical problem such as unstable, dissolve out efficiency decline.
In order to solve the above problem, the technical scheme of the utility model is that: a feeding device of a dissolving-out machine set in alumina production, wherein: comprises a desilication tank, a static mixing device, a diaphragm pump, secondary mother liquor evaporation and a control system;
the desilication tank is connected with an inlet of a static mixing device through a first connecting pipeline, an outlet of the static mixing device is connected with an inlet of a diaphragm pump through a second connecting pipeline, and the secondary evaporation mother liquor is connected with a first connecting pipeline through a third connecting pipeline;
the static mixing device comprises a support, mixing pipelines and four groups of mixing units, wherein the mixing pipelines are fixedly arranged on the top surface of the support and comprise a first horizontal pipeline, an inclined pipeline and a second horizontal pipeline which have the same inner diameter, the inclined pipeline is arranged in a rightward inclined manner, the left end of the first horizontal pipeline is a material inlet, the right end of the first horizontal pipeline is connected with the upper end of the inclined pipeline, the lower end of the inclined pipeline is connected with the left end of the second horizontal pipeline, and the right end of the second horizontal pipeline is a material outlet;
the mixing unit comprises two groups of semi-elliptical plates and two groups of triangular plates, the middle parts of the two groups of semi-elliptical plates are vertically arranged, the planes of the two groups of semi-elliptical plates are divided into four equal areas, the two groups of triangular plates are respectively arranged in the two groups of areas symmetrically arranged along the opposite angles, and the two sides of each triangular plate are respectively welded and fixed with the two groups of semi-elliptical plates; the two groups of mixing units are arranged in a first horizontal pipeline, the two groups of mixing units in the first horizontal pipeline are vertical to each other, and the other two groups of mixing units are arranged in a second horizontal pipeline, and the two groups of mixing units in the second horizontal pipeline are vertical to each other.
Further, from last first hang plate and the second hang plate that sets gradually the below slope in the right side down on the diapire of slope pipeline, the length of second hang plate is greater than the length of first hang plate.
Further, the included angle b between the first inclined plate and the horizontal plane and the included angle b between the second inclined plate and the horizontal plane are both 22-30 degrees.
Further, the triangular plate is an isosceles right triangle.
Furthermore, the radius of the minor axis of the semi-elliptical plate is one half of the inner diameter of the first horizontal pipeline, and the outer edge of the semi-elliptical plate is fixedly connected with the inner walls of the first horizontal pipeline and the second horizontal pipeline through full-length welding.
Furthermore, all be provided with the solenoid valve on first connecting tube, the second connecting tube and the third connecting tube.
Further, control system includes controller, information acquisition module and remote monitering terminal, the information acquisition module is including locating thermometer, flowmeter and the densimeter on the second connecting tube, the controller respectively with information acquisition module, remote monitering terminal and solenoid valve between electrical connection.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, it is with low costs, wherein static mixing arrangement's setting for desiliconization ore pulp and secondary are joined in marriage the abundant homogeneous mixing of mother liquor, have improved the stability of joining in marriage alkali greatly, guarantee to dissolve out the effect, are favorable to the reduction that the ore consumed the alkali simultaneously.
First horizontal pipeline, second horizontal pipeline and inside mixing unit's setting among the static mixing device for the material mixes earlier in first horizontal pipeline, then falls into the second horizontal pipeline through the slope pipeline in, and further mixes, makes to mix more fully, has guaranteed that the secondary joins in marriage the intensive mixing of mother liquor and desiliconization ore pulp, has guaranteed to dissolve out the quality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a static mixer according to the present invention;
FIG. 3 is a schematic structural diagram of a mixing unit according to the present invention;
fig. 4 is a schematic perspective view of fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
A digestion unit feeding apparatus for alumina production as shown in fig. 1 to 4, wherein: comprises a desilication tank 1, a static mixing device 2, a diaphragm pump 3, an evaporation secondary mother liquor 4 and a control system; desiliconized ore pulp and secondary evaporated mother liquor 4 which are sent out from a desiliconization tank 1 enter a static mixing device 2 together through a first connecting pipeline 5-1 to be fully mixed, and then are sent into a dissolving-out unit through a diaphragm pump 3.
The desilication tank 1 is connected with an inlet of a static mixing device 2 through a first connecting pipeline 5-1, an outlet of the static mixing device 2 is connected with an inlet of a diaphragm pump 3 through a second connecting pipeline 5-2, and the secondary evaporation mother liquor 4 is connected with the first connecting pipeline 5-1 through a third connecting pipeline 5-3;
the static mixing device 2 comprises a support 2-1, a mixing pipeline 2-2 and four groups of mixing units 2-3, wherein the mixing pipeline 2-2 is fixedly arranged on the top surface of the support 2-1, the mixing pipeline 2-2 comprises a first horizontal pipeline 2-2-1, an inclined pipeline 2-2-2 and a second horizontal pipeline 2-2-3 which have the same inner diameter, the inclined pipeline 2-2-2 is arranged obliquely rightwards, the left end of the first horizontal pipeline 2-2-1 is a material inlet, the right end of the first horizontal pipeline 2-2-1 is connected with the upper end of the inclined pipeline 2-2-2, the lower end of the inclined pipeline 2-2-2 is connected with the left end of the second horizontal pipeline 2-2-3, the right end of the second horizontal pipeline 2-2-3 is a material outlet; the inclined pipeline 2-2-2 is arranged to enable the mixed materials mixed by the first horizontal pipeline 2-2-1 to fall into the second horizontal pipeline 2-2-3 to be mixed continuously.
As shown in fig. 4, the mixing unit 2-3 includes two groups of semi-elliptical plates 2-3-1 and two groups of triangular plates 2-3-2, the middle parts of the two groups of semi-elliptical plates 2-3-1 are vertically arranged, the plane between the two groups of semi-elliptical plates 2-3-1 is divided into four equal areas 2-3-3, the two groups of triangular plates 2-3-2 are respectively arranged in the two groups of areas 2-3-3 which are symmetrically arranged along the diagonal direction, and two sides of the triangular plate 2-3-2 are respectively welded and fixed with the two groups of semi-elliptical plates 2-3-1; two groups of mixing units 2-3 are arranged in a first horizontal pipeline 2-2-1, two groups of mixing units 2-3 arranged in the first horizontal pipeline 2-2-1 are mutually vertical, and the other two groups of mixing units 2-3 are arranged in a second horizontal pipeline 2-2-3, and two groups of mixing units 2-3 arranged in the second horizontal pipeline 2-2-3 are mutually vertical. One group of the materials is placed in the direction shown in figure 3, and the other group of the materials is arranged perpendicular to the direction, so that the mixing direction is changed, the materials are mixed from different directions, and the materials are dispersed and mixed.
Furthermore, a first inclined plate 2-2-4 and a second inclined plate 2-2-5 which are inclined towards the lower right are sequentially arranged on the bottom wall of the inclined pipeline 2-2-2 from top to bottom, and the length of the second inclined plate 2-2-5 is greater than that of the first inclined plate 2-2-4. The arrangement of the first inclined plate 2-2-4 and the second inclined plate 2-2-5 improves the falling speed of the materials, so that the materials flow in an accelerated manner, and the full mixing is facilitated.
Furthermore, the included angles b between the first inclined plate 2-2-4 and the second inclined plate 2-2-5 and the horizontal plane are 22-30 degrees. The selection of the angle is the most suitable angle for accelerating the falling of the material.
Further, the triangular plates 2-3-2 are isosceles right triangles.
Furthermore, the radius of the minor axis of the semi-elliptical plate 2-3-1 is half of the inner diameter of the first horizontal pipeline 2-2-1, so that the semi-elliptical plate can be attached to the inner wall, and the outer edge of the semi-elliptical plate is fixedly connected with the inner walls of the first horizontal pipeline 2-2-1 and the second horizontal pipeline 2-2-3 through full welding.
Furthermore, the first connecting pipeline 5-1, the second connecting pipeline 5-2 and the third connecting pipeline 5-3 are all provided with electromagnetic valves. The solenoid valve controls the on-off of the pipeline.
Further, the control system comprises a controller, an information acquisition module and a remote monitoring terminal, the information acquisition module comprises a thermometer, a flowmeter and a densimeter which are arranged on the second connecting pipeline 5-2, and the controller is electrically connected with the information acquisition module, the remote monitoring terminal and the electromagnetic valve respectively. The information acquisition of thermometer, flowmeter and densimeter material in to the pipeline to the signal of gathering shows at remote monitoring terminal, the staff of being convenient for is to the management and control of material index change.
Claims (7)
1. The utility model provides a dissolve out unit feed arrangement in alumina production which characterized in that: comprises a desilication tank (1), a static mixing device (2), a diaphragm pump (3), secondary evaporation mother liquor (4) and a control system;
the desilication tank (1) is connected with an inlet of the static mixing device (2) through a first connecting pipeline (5-1), an outlet of the static mixing device (2) is connected with an inlet of the diaphragm pump (3) through a second connecting pipeline (5-2), and the secondary evaporation mother liquor (4) is connected with the first connecting pipeline (5-1) through a third connecting pipeline (5-3);
the static mixing device (2) comprises a support (2-1), a mixing pipeline (2-2) and four groups of mixing units (2-3), wherein the mixing pipeline (2-2) is fixedly arranged on the top surface of the support (2-1), the mixing pipeline (2-2) comprises a first horizontal pipeline (2-2-1), an inclined pipeline (2-2-2) and a second horizontal pipeline (2-2-3), the inner diameters of the first horizontal pipeline (2-2-1), the inclined pipeline (2-2-2) are the same, the left end of the first horizontal pipeline (2-2-1) is a material inlet, the right end of the first horizontal pipeline (2-2-1) is connected with the upper end of the inclined pipeline (2-2-2), the lower end of the inclined pipeline (2-2-2) is connected with the left end of the second horizontal pipeline (2-2-3), the right end of the second horizontal pipeline (2-2-3) is a material outlet;
the mixing unit (2-3) comprises two groups of semi-elliptical plates (2-3-1) and two groups of triangular plates (2-3-2), the middle parts of the two groups of semi-elliptical plates (2-3-1) are vertically arranged, the planes of the two groups of semi-elliptical plates (2-3-1) are divided into four equal areas (2-3-3), the two groups of triangular plates (2-3-2) are respectively arranged in the two groups of areas (2-3-3) which are symmetrically arranged along the diagonal direction, and the two sides of the triangular plates (2-3-2) are respectively welded and fixed with the two groups of semi-elliptical plates (2-3-1); the two groups of mixing units (2-3) are arranged in a first horizontal pipeline (2-2-1), the two groups of mixing units (2-3) arranged in the first horizontal pipeline (2-2-1) are mutually vertical, the other two groups of mixing units (2-3) are arranged in a second horizontal pipeline (2-2-3), and the two groups of mixing units (2-3) arranged in the second horizontal pipeline (2-2-3) are mutually vertical.
2. The feeding device of the digestion unit in the alumina production as claimed in claim 1, wherein: the bottom wall of the inclined pipeline (2-2-2) is sequentially provided with a first inclined plate (2-2-4) and a second inclined plate (2-2-5) which are inclined towards the lower right from top to bottom, and the length of the second inclined plate (2-2-5) is greater than that of the first inclined plate (2-2-4).
3. The feeding device of the digestion unit in the alumina production as claimed in claim 2, characterized in that: the included angles b between the first inclined plate (2-2-4) and the second inclined plate (2-2-5) and the horizontal plane are 22-30 degrees.
4. The feeding device of the digestion unit in the alumina production as claimed in claim 1, wherein: the triangular plates (2-3-2) are isosceles right triangles.
5. The feeding device of the digestion unit in the alumina production as claimed in claim 1, wherein: the semi-elliptical plate (2-3-1) is characterized in that the radius of the short axis is one half of the inner diameter of the first horizontal pipeline (2-2-1), and the outer edge of the semi-elliptical plate is fixedly connected with the inner walls of the first horizontal pipeline (2-2-1) and the second horizontal pipeline (2-2-3) through full welding.
6. The feeding device of the digestion unit in the alumina production as claimed in claim 1, wherein: the first connecting pipeline (5-1), the second connecting pipeline (5-2) and the third connecting pipeline (5-3) are all provided with electromagnetic valves.
7. The feeding device of the digestion unit in alumina production as claimed in claim 6, wherein: the control system comprises a controller, an information acquisition module and a remote monitoring terminal, wherein the information acquisition module comprises a thermometer, a flowmeter and a densimeter which are arranged on the second connecting pipeline (5-2), and the controller is electrically connected with the information acquisition module, the remote monitoring terminal and the electromagnetic valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221072245.1U CN217103096U (en) | 2022-05-06 | 2022-05-06 | Feeding device of dissolution unit in alumina production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221072245.1U CN217103096U (en) | 2022-05-06 | 2022-05-06 | Feeding device of dissolution unit in alumina production |
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| CN217103096U true CN217103096U (en) | 2022-08-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490252A (en) * | 2022-09-29 | 2022-12-20 | 东方希望晋中铝业有限公司 | Aluminum-electricity linkage driving method for aluminum oxide plant |
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2022
- 2022-05-06 CN CN202221072245.1U patent/CN217103096U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490252A (en) * | 2022-09-29 | 2022-12-20 | 东方希望晋中铝业有限公司 | Aluminum-electricity linkage driving method for aluminum oxide plant |
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