CN201415072Y - Pulp thickening system capable of increasing pulp density - Google Patents
Pulp thickening system capable of increasing pulp density Download PDFInfo
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- CN201415072Y CN201415072Y CN2009200045986U CN200920004598U CN201415072Y CN 201415072 Y CN201415072 Y CN 201415072Y CN 2009200045986 U CN2009200045986 U CN 2009200045986U CN 200920004598 U CN200920004598 U CN 200920004598U CN 201415072 Y CN201415072 Y CN 201415072Y
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Abstract
A pulp thickening system capable of increasing pulp density comprises a thickener, a thickening tank, a pulp inlet pipeline, a pulp outlet pipeline and an underflow pump. A circulating pipeline used for increasing the pulp density is formed by connecting the pulp inlet pipeline and the pulp outlet pipeline through a communicating pipeline. Through the system and the controlling method thereof, thepulp thickening system can increase pulp density inside the pulp outlet pipeline, and simultaneously improve production efficiency.
Description
Technical field
The utility model relates to the ore pulp concentration field of improving pulp density, especially is applicable to iron ore slurry concentration field.
Background technology
In the ore slurry pipeline transport field, wherein have a technological process that ore pulp is concentrated, this technological process mainly improves the concentration of ore pulp by concentrator, and the ore pulp of concentrator processing is sent to next technological process through piping then.
But the low concentration slurry is after common concentrator concentrates, and its concentration is generally still lower, for example at the iron ore slurry, concentrates back concentration about 50%, and is the highest about 60%, can not satisfy the requirement of road technology down.
The utility model content
The utility model purpose has been to design a kind of concentration systems that improves pulp density, and this system can effectively improve pulp density.
In order to solve the technical problem of above-mentioned existence, the utility model has adopted following scheme:
A kind of ore pulp concentration systems that improves pulp density comprises concentrator, thickening pond, pulp-inlet pipe road, pulp pipeline and underflow pump, is connected to form the circulating line of a raising pulp density between described pulp-inlet pipe road and the described pulp pipeline by connecting pipe.
This can improve the concentration systems of pulp density, compared with prior art has following beneficial effect:
Owing to be provided with circulating line, can allow the ore pulp that do not reach concentration requirement come back in the thickening pond and handle in the utility model, obtain satisfactory pulp density, also enhance productivity greatly simultaneously.
For example: the thickening pond of 30 meters of diameters is handled the ore deposit amount every day and has been brought up to more than 2000 tons by original 1200 tons; Underflow density ranges up to 73% by original having brought up to below 60% more than 65%.
Description of drawings
Fig. 1: a kind of structural representation that improves the ore pulp concentration systems of pulp density of the utility model;
Description of reference numerals:
1-pulp-inlet pipe road; The 2-thickening pond; The 3-concentrator; The 4-underflow pump; The 5-densitometer; 6-is communicated with valve; 7-pulp valve; 8-pulp pipeline; The 9-frequency converter; The 10-connecting pipe.
The specific embodiment
Below in conjunction with Fig. 1, the utility model is described further:
The utility model discloses a kind of ore pulp concentration systems that improves pulp density, comprise concentrator 3, thickening pond 2, pulp-inlet pipe road 1, pulp pipeline 8 and underflow pump 4, be connected to form the circulating line of a raising pulp density between described pulp-inlet pipe road 1 and the described pulp pipeline 8 by connecting pipe 10.
Native system also comprises the densitometer 5 that is used to detect pulp density, and described densitometer is positioned on the pulp pipeline 8 as a circulating line part.Described underflow pump 4 is positioned on the pulp pipeline 8 as a circulating line part.Described underflow pump 4 is connected with a frequency converter 9.Described connecting pipe 10 is provided with and is communicated with valve 6.Do not belong to the part of circulating line at described pulp pipeline 8, be provided with pulp valve 7.
A kind of control method that improves the ore pulp concentration systems of pulp density comprises:
(a) when the middle pulp density in the densitometer 5 demonstration pulp pipelines 8 is lower than requirement, close pulp valve 7, open connection valve 6 simultaneously, allow the ore pulp that does not reach concentration standard get back to processing once more in the described thickening pond 2 by connecting pipe 10;
(b) after the ore pulp that does not reach concentration standard is handled in described thickening pond 2, reenter in the described pulp pipeline 8, when the middle pulp density in the described pulp pipeline 8 of described densitometer 5 demonstrations was still undesirable, ore pulp will be got back to described thickening pond 2 by described connecting pipe 10 once more; When the middle pulp density in the described pulp pipeline 8 of described densitometer 5 demonstrations meets the requirements, open described pulp valve 7, close described connection valve 6 simultaneously, ore pulp enters next processing links.
When the pulp density in the described pulp pipeline 8 is low, reduce the pump speed of described underflow pump 4 by frequency converter 9.
When the pulp density in the described pulp pipeline 8 is high, improve the pump speed of described underflow pump 4 by described frequency converter 9.
Concrete principle is as follows: when the middle pulp density in the described pulp pipeline 8 hangs down, close described valve 7, open described connection valve 6 simultaneously, switch to circulating line, reduce described underflow pump 4 pump speeds to reduce yield, allow thickening pond 2 interior ore deposits fully precipitate and to harrow frame the ore deposit is scraped pyramidal structure position, thickening pond 2 bottom, to improve the concentration of ore pulp by concentrator.
If pump speed is constant, the ore pulp of big volume low-concentration enters described thickening pond 2, will increase the sedimentation time of ore pulp, and the middle pulp density in the described pulp pipeline 8 can not improve, the ore pulp of undesirable concentration will enter described thickening pond 2 once more, and this will increase the production cost expense.
When if the middle pulp density in the described pulp pipeline 8 is high, should improves the flow velocity that pump speed improves ore pulp, thereby improve yield.So make the ore deposit amount of thickening pond 2 can remain on a certain amount of.
If the ore deposit of thickening pond 2 amount increases and can not in time get, be increased to a certain degree, will reduce the effective volume of thickening pond 2, also can reduce the settling area of thickening pond 2.Thickening pond 2 settling areas reduce the ore pulp disposal ability that will reduce thickening pond 2, the situation of thickening pond 2 ore pulps outflow will appear in this moment, even may increase because of the ore deposit of thickening pond 2 amount increases the load that cause concentrator 3, occur that concentrator rake frame kills and the situation that causes thickening pond 2 systemic breakdowns.
Claims (6)
1, a kind of ore pulp concentration systems that improves pulp density, comprise concentrator (3), thickening pond (2), pulp-inlet pipe road (1), pulp pipeline (8) and underflow pump (4), it is characterized in that: the circulating line that is connected to form a raising pulp density between described pulp-inlet pipe road (1) and the described pulp pipeline (8) by connecting pipe (10).
2, the ore pulp concentration systems that improves pulp density according to claim 1 is characterized in that: also comprise the densitometer (5) that is used to detect pulp density, described densitometer is positioned on the pulp pipeline (8) as a circulating line part.
3, the ore pulp concentration systems that improves pulp density according to claim 1 and 2 is characterized in that: described underflow pump (4) is positioned on the pulp pipeline (8) as a circulating line part.
4, the ore pulp concentration systems that improves pulp density according to claim 3 is characterized in that: described underflow pump (4) is connected with a frequency converter (9).
5, the ore pulp concentration systems that improves pulp density according to claim 4 is characterized in that: described connecting pipe (10) is provided with and is communicated with valve (6).
6, the ore pulp concentration systems that improves pulp density according to claim 5 is characterized in that: do not belong to the part of circulating line at described pulp pipeline (8), be provided with pulp valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200045986U CN201415072Y (en) | 2009-02-17 | 2009-02-17 | Pulp thickening system capable of increasing pulp density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200045986U CN201415072Y (en) | 2009-02-17 | 2009-02-17 | Pulp thickening system capable of increasing pulp density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201415072Y true CN201415072Y (en) | 2010-03-03 |
Family
ID=41791481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200045986U Expired - Lifetime CN201415072Y (en) | 2009-02-17 | 2009-02-17 | Pulp thickening system capable of increasing pulp density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201415072Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203124A (en) * | 2012-06-12 | 2013-07-17 | 潘明友 | Tailing dehydration process and device |
| CN105148574A (en) * | 2015-09-23 | 2015-12-16 | 山东科技大学 | Bottom flow shearing and thickening device and method for thickener |
| CN109668053A (en) * | 2019-02-14 | 2019-04-23 | 昆明理工大学 | A kind of Slurry Pipeline Transportation system and slurry pipeline steel control method |
-
2009
- 2009-02-17 CN CN2009200045986U patent/CN201415072Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203124A (en) * | 2012-06-12 | 2013-07-17 | 潘明友 | Tailing dehydration process and device |
| CN103203124B (en) * | 2012-06-12 | 2016-04-13 | 潘明友 | A kind of tailings dewatering technique and device |
| CN105148574A (en) * | 2015-09-23 | 2015-12-16 | 山东科技大学 | Bottom flow shearing and thickening device and method for thickener |
| CN109668053A (en) * | 2019-02-14 | 2019-04-23 | 昆明理工大学 | A kind of Slurry Pipeline Transportation system and slurry pipeline steel control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |