CN212476138U - Connecting system for reducing liquid content of seed crystal filter cake - Google Patents
Connecting system for reducing liquid content of seed crystal filter cake Download PDFInfo
- Publication number
- CN212476138U CN212476138U CN202022253587.0U CN202022253587U CN212476138U CN 212476138 U CN212476138 U CN 212476138U CN 202022253587 U CN202022253587 U CN 202022253587U CN 212476138 U CN212476138 U CN 212476138U
- Authority
- CN
- China
- Prior art keywords
- vertical disc
- filter
- feeding pump
- material loading
- found
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 239000012065 filter cake Substances 0.000 title claims abstract description 36
- 239000013078 crystal Substances 0.000 title claims abstract description 29
- 238000004891 communication Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 30
- 238000011068 loading method Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 description 24
- 238000011010 flushing procedure Methods 0.000 description 9
- 239000012452 mother liquor Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000967 suction filtration Methods 0.000 description 5
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
Images
Landscapes
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The utility model belongs to the technical field of aluminium oxide production technology, concretely relates to reduce connected system of seed crystal filter cake liquid content rate, including founding a set filter A, founding a set filter B, founding a set material loading pump A, founding a set material loading pump B and communicating pipe, found a set material loading pump A's outlet conduit and found a set filter A and be connected, found a set material loading pump B's outlet conduit and found a set filter B and be connected, found a set material loading pump A's outlet conduit and found a set material loading pump B's outlet conduit and pass through communicating pipe and be connected, found a set material loading pump A's entry end and decomposer feed pipe connection, found a set material loading pump B's entry end and decomposer feed pipe connection, install the controller on the set filter A, the controller passes through the circuit and founds a set material loading pump A and found a set material loading pump B and is connected. The system and the method solve the problem of high liquid content of the existing crystal seed filter cake, and can be widely applied to the joints of various vertical disc filters and vertical disc feeding pumps.
Description
Technical Field
The utility model belongs to the technical field of aluminium oxide production technology, concretely relates to reduce connected system that crystal seed filter cake contains liquid rate.
Background
In the production of alumina, the decomposition rate in the decomposition process is a main index for measuring the effect of seed separation operation, and is expressed by the percentage of alumina decomposition and precipitation in the sodium aluminate solution. The seed crystal decomposition is a process which takes the longest time in the process of producing alumina by a Bayer process, and a plurality of seed crystals need to be added, and the decomposition rate can only reach about 54.5 percent at most and is far lower than the decomposition rate which can be reached in theory. Through research on production practice, the reason for low decomposition rate of seed crystal is found, and a method for solving the problem is tried, wherein the decomposition rate is directly influenced by the liquid content of the seed crystal filter cake, and the lower the liquid content of the seed crystal filter cake is, the higher the decomposition rate is. The factors influencing the liquid content of the seed crystal filter cake mainly comprise: the liquid level of the vertical disc filter, the rotating speed (capacity) of the vertical disc filter, the vacuum degree of the vertical disc filter and the like. The vacuum degree of the vertical disc filter can reach-0.050 Mpa under the normal condition, the vacuum degree is required to be between-0.045 Mpa and 0.050Mpa, and the vacuum degree of the vertical disc filter is basically in the required range. In order to meet the requirement of production liquid quantity, the conventional vertical disc filter operates at a full liquid level basically, the rotating speed (capacity) of the vertical disc filter is higher, the liquid level and the rotating speed of the vertical disc filter are properly reduced, and the suction filtration effect of a filter cake of the vertical disc filter is better, so that the liquid content of the filter cake of the crystal seeds is reduced, and the aim of improving the decomposition rate is fulfilled.
In the prior art, a first-stage and a second-stage decomposition lines are respectively provided with two vertical disc filters and vertical disc feeding pumps, and the two vertical disc filters work independently in each stage; when a single vertical disc filter and a vertical disc feeding pump operate, the liquid content of seeds is higher when the liquid level of the vertical disc filter is higher, and when the liquid level of the filter is controlled by the pump speed of the vertical disc feeding pump, the feeding of the filter is insufficient when the pump speed is lower, so that the liquid level of the vertical disc filter cannot be well matched with the pump speed of the feeding pump; when a single vertical disc filter operates, the vertical disc filter cake is thicker, the filter cake suction filtration effect is poor, and the liquid content of seeds is higher; the vertical disc filter is frequently switched every day, and a large amount of flushing mother liquor and vertical disc flushing water are switched every time to enter a flow, so that the power and energy consumption of the liquid quantity of a system are increased, and the influence of solid content dilution of a decomposition tank on the product quality is caused.
Therefore, there is a need to improve upon the above problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the deficiencies in the prior art, the utility model provides a reduce the connected system of seed crystal filter cake liquid content rate, the current higher problem of seed crystal filter cake liquid content rate can be solved to this system and method.
The utility model adopts the technical proposal that:
a connection system for reducing the liquid content of a crystal seed filter cake is characterized in that: including found a set filter A, found a set filter B, found a set material loading pump A, found a set material loading pump B and communicating pipe, found a set material loading pump A's outlet conduit and found a set filter A and be connected, found a set material loading pump B's outlet conduit and found a set filter B and be connected, found a set material loading pump A's outlet conduit and found a set material loading pump B's outlet conduit and pass through communicating pipe and be connected, found a set material loading pump A's entry end and decomposer feed pipe connection, found a set material loading pump B's entry end and decomposer feed pipe connection, install the controller on the found a set filter A, the controller passes through the circuit and is connected with found a set material loading pump A and found a set material loading pump B.
An outlet pipeline of the vertical disc feeding pump A positioned in front of the communicating pipe is provided with a vertical disc feeding pump A outlet stop valve, and an outlet pipeline of the vertical disc feeding pump B positioned in front of the communicating pipe is provided with a vertical disc feeding pump B outlet stop valve.
And the controller is respectively connected with the stop valve of the outlet of the feeding pump A and the stop valve of the outlet of the feeding pump B through lines.
The communicating pipe is characterized in that a communicating valve A is installed at one end of a communicating pipe located on one side of the vertical disc feeding pump A, and a communicating valve B is installed at the other end of the communicating pipe located on one side of the vertical disc feeding pump B.
And the controller is respectively connected with the communicating valve A and the communicating valve B through lines.
Compared with the prior art, the utility model beneficial effect who has does:
the utility model connects two vertical disc filters in each period in series, and achieves the purpose that a single vertical disc feeding pump simultaneously feeds the two filters, thereby reducing the capacity of the vertical disc filters, thinning the filter cake of the vertical disc filters, and reducing the thickness of the crystal seed filter cake by 15-20 mm, thereby improving the suction filtration effect of the crystal seed filter cake; the liquid content of the seed crystal filter cake is reduced by 1 percent compared with the prior art, the liquid content of the seed is reduced, the caustic alkali amount entering the semen is reduced, the decomposition rate is improved, and the economic benefit is improved; the operation is more stable, the operation rate of the equipment is improved, frequent switching is not needed any more, the mother liquor amount and the vertical disc flushing water amount in the flushing flow of the switching filter are reduced, the energy and power consumption caused by the non-production water inlet flow is reduced, and the influence of the flushing mother liquor on the solid content dilution of the decomposer is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Wherein: the filter comprises a vertical disc filter 1, a vertical disc filter B2, a vertical disc feeding pump A3, a vertical disc feeding pump B4, a communicating pipe 5, a controller 6, a vertical disc feeding pump A outlet stop valve 7, a vertical disc feeding pump B outlet stop valve 8, a communicating valve A9 and a communicating valve B10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figure 1, a connecting system for reducing the liquid content of a seed crystal filter cake comprises a vertical disc filter A1, a vertical disc filter B2, a vertical disc feeding pump A3, a vertical disc feeding pump B4 and a communicating pipe 5, wherein an outlet pipeline of the vertical disc feeding pump A3 is connected with a vertical disc filter A1, an outlet pipeline of the vertical disc feeding pump B4 is connected with a vertical disc filter B2, an outlet pipeline of the vertical disc feeding pump A3 is connected with an outlet pipeline of a vertical disc feeding pump B4 through the communicating pipe 5, an inlet end of the vertical disc feeding pump A3 is connected with a decomposing tank feeding pipe, an inlet end of the vertical disc feeding pump B4 is connected with the decomposing tank feeding pipe, a controller 6 is installed on the vertical disc filter A1, the controller 6 is connected with a vertical disc feeding pump A3 and a vertical disc feeding pump B4 through a line, and when a single vertical disc feeding pump simultaneously feeds two vertical disc feeding pumps, the problem that the liquid level of the vertical disc feeding pump is not matched with the vertical disc filter is solved, the thickness of the crystal seed filter cake is reduced by 15-20 mm, the thickness of the filter cake of the vertical disc filter is about 10-15 mm, the thickness of the filter cake is reduced, and the liquid content of the crystal seed filter cake is about 20%.
Be provided with vertical disk material loading pump A export stop valve 7 on being located the export pipeline of vertical disk material loading pump A3 before communicating pipe 5, be provided with vertical disk material loading pump B export stop valve 8 on being located the export pipeline of vertical disk material loading pump B4 before communicating pipe 5, two stop valve teams communicate pipe and control that dams.
The controller 6 is respectively connected with the stop valve 7 of the outlet of the feeding pump A and the stop valve 8 of the outlet of the feeding pump B through lines, and controls the stop valve 7 of the outlet of the feeding pump A and the stop valve 8 of the outlet of the feeding pump B.
And a communication valve A9 is installed at one end of the communication pipe 5 positioned on one side of the vertical disc feeding pump A3, and a communication valve B10 is installed at the other end of the communication pipe 5 positioned on one side of the vertical disc feeding pump B4.
The controller 6 is connected to a communication valve a9 and a communication valve B10 via lines, and controls the communication valve a9 and the communication valve B10.
A control method of a connecting system for reducing the liquid content of a crystal seed filter cake comprises the following steps:
s1, starting the operation of the decomposition line, and starting a vertical disc feeding pump A3;
s2, starting a vertical disc filter A1 and a vertical disc filter B2;
s3, opening a stop valve 7 of an outlet of the vertical disc feeding pump A, a communication valve A9 and a communication valve B10, closing a stop valve 8 of an outlet of the vertical disc feeding pump B, and simultaneously feeding materials to a vertical disc filter A1 and a vertical disc filter B2 by the vertical disc feeding pump A3;
s4, after the operation is finished on the same day, cleaning the vertical disc filter and an outlet pipeline of the vertical disc feeding pump;
and S5, restarting the operation of the next day decomposition line, opening the stop valve 8 at the outlet of the vertical disc feeding pump B, the communication valve A9 and the communication valve B10, closing the stop valve 7 at the outlet of the vertical disc feeding pump A, and simultaneously feeding materials to the vertical disc filter A1 and the vertical disc filter B2 by the vertical disc feeding pump B4.
In the operation process of the step S3, the controller 6 monitors the operation condition in real time, gives an alarm when abnormal conditions occur, and automatically controls to close the stop valve 7 at the outlet of the vertical disc feeding pump A.
The decomposition procedure in the production process of the aluminum oxide generally comprises two lines, namely a first decomposition line and a second decomposition line, wherein each decomposition line is provided with two vertical disc filters. The utility model discloses explain one of them decomposition line, another decomposition line is with the utility model discloses a decomposition line, the vertical disk filter is equipped with one when the normal condition moves down, and every decomposition line respectively moves a vertical disk filter, for the decomposer adds the seed crystal, and the vertical disk filter is once switched every shift (the cubic is switched every day), and the filter cloth of switching at every turn all will be washed with a large amount of hot water, and vertical disk material loading pump pipeline also needs to be washed with the mother liquor, and a large amount of non-production water and mother liquor get into the flow. The utility model discloses in, two vertical disk filters correspond two vertical disk material loading pumps, increase communicating pipe at the outlet pipeline of two vertical disk material loading pumps. When a single vertical disc feeding pump operates, two vertical disc filters operate simultaneously, and the liquid level and the rotating speed of the vertical disc filters only need 1/2 in normal operation. And the vertical disc filter does not need to be changed every shift, and only needs to be changed once every day, so that a large amount of flushing hot water and mother liquor entering processes are reduced.
The filter cake thickness of the vertical disc filter is about 20-30 mm at ordinary times, the liquid content of the crystal seed filter cake is about 22%, the utility model discloses a connect two filters and move simultaneously in back, two filters are supplied simultaneously to single vertical disc feeding pump, and crystal seed filter cake thickness reduces 15-20 mm, and vertical disc filter cake thickness is about 10-15 mm, and filter cake thickness attenuation, crystal seed filter cake liquid content is about 20%. The suction filtration effect of the seed crystal filter cake is improved, the liquid content of the seed crystal filter cake is reduced by 1% compared with the previous liquid content, the caustic alkali amount entering the refined solution is reduced, the decomposition rate is improved, and the economic benefit is improved;
and the two vertical disc filters operate simultaneously, so that the operation rate of the equipment is improved, frequent switching is not needed, the mother liquor amount in the flushing flow of the switching filter and the flushing amount of the vertical disc are reduced, the energy and power consumption caused by the non-production water inlet flow is reduced, and the influence of the flushing mother liquor on the solid content dilution of the decomposer is reduced.
When two vertical disk filters are fed simultaneously by a single vertical disk feeding pump, the problem that the pump speed of the feeding pump is not matched with the liquid level of the filter is solved, and meanwhile, when the two vertical disk filters carry materials, the vertical disk filter cakes are thin, the filter cake suction filtration effect is good, and the liquid content of seeds is greatly reduced.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (5)
1. A connection system for reducing the liquid content of a crystal seed filter cake is characterized in that: comprises a vertical disk filter A (1), a vertical disk filter B (2), a vertical disk feeding pump A (3), a vertical disk feeding pump B (4) and a communicating pipe (5), an outlet pipeline of the vertical disc feeding pump A (3) is connected with the vertical disc filter A (1), an outlet pipeline of the vertical disc feeding pump B (4) is connected with the vertical disc filter B (2), the outlet pipeline of the vertical disc feeding pump A (3) is connected with the outlet pipeline of the vertical disc feeding pump B (4) through a communicating pipe (5), the inlet end of the vertical disc feeding pump A (3) is connected with a feed pipe of the decomposing tank, the inlet end of the vertical disc feeding pump B (4) is connected with the feed pipe of the decomposing tank, the vertical disc filter A (1) is provided with a controller (6), and the controller (6) is connected with a vertical disc feeding pump A (3) and a vertical disc feeding pump B (4) through a circuit.
2. The connection system for reducing the liquid content of the seed cake according to claim 1, wherein: an outlet pipeline of the vertical disc feeding pump A (3) positioned in front of the communicating pipe (5) is provided with a vertical disc feeding pump A outlet stop valve (7), and an outlet pipeline of the vertical disc feeding pump B (4) positioned in front of the communicating pipe (5) is provided with a vertical disc feeding pump B outlet stop valve (8).
3. The system according to claim 2, wherein the coupling system for reducing the liquid content of the seed cake comprises: and the controller (6) is respectively connected with the stop valve (7) at the outlet of the feeding pump A and the stop valve (8) at the outlet of the feeding pump B through lines.
4. The connection system for reducing the liquid content of the seed cake according to claim 1, wherein: the device is characterized in that a communication valve A (9) is installed at one end of a communication pipe (5) located on one side of a vertical disc feeding pump A (3), and a communication valve B (10) is installed at the other end of the communication pipe (5) located on one side of a vertical disc feeding pump B (4).
5. The system according to claim 4, wherein the coupling system for reducing the liquid content of the seed cake comprises: and the controller (6) is respectively connected with the communication valve A (9) and the communication valve B (10) through lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253587.0U CN212476138U (en) | 2020-10-12 | 2020-10-12 | Connecting system for reducing liquid content of seed crystal filter cake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253587.0U CN212476138U (en) | 2020-10-12 | 2020-10-12 | Connecting system for reducing liquid content of seed crystal filter cake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212476138U true CN212476138U (en) | 2021-02-05 |
Family
ID=74449035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022253587.0U Expired - Fee Related CN212476138U (en) | 2020-10-12 | 2020-10-12 | Connecting system for reducing liquid content of seed crystal filter cake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212476138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028096A (en) * | 2020-10-12 | 2020-12-04 | 山西复晟铝业有限公司 | Connecting system for reducing liquid content of seed crystal filter cake and control method |
-
2020
- 2020-10-12 CN CN202022253587.0U patent/CN212476138U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028096A (en) * | 2020-10-12 | 2020-12-04 | 山西复晟铝业有限公司 | Connecting system for reducing liquid content of seed crystal filter cake and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212476138U (en) | Connecting system for reducing liquid content of seed crystal filter cake | |
| CN101648769B (en) | Flow separation and leaf filtration process for red mud settlement separating coarse liquid and red mud washing liquid and system therefor | |
| CN112028096A (en) | Connecting system for reducing liquid content of seed crystal filter cake and control method | |
| CN201324566Y (en) | Leaf filtering system | |
| CN102091453A (en) | Plate-and-frame filter press used in citric acid production process and solid-liquid separating method thereof | |
| CN103708503B (en) | Causticizing method alkali preparation technology | |
| CN216918640U (en) | Saturated sodium carbonate high-efficient piece-rate system in aluminium oxide production | |
| CN214634304U (en) | Salt discharging system for aluminum oxide production | |
| CN219765272U (en) | Nickel acetate discharging system | |
| CN221513559U (en) | Sodium hypophosphite continuous crystallization apparatus for producing | |
| CN211885574U (en) | Circulating water supply device for chemical production | |
| CN211896065U (en) | Crude lithium product washing device | |
| CN213132143U (en) | Novel silver purification is with filtering device | |
| CN214422271U (en) | Device for extracting non-mineral nano calcium carbonate from water | |
| CN220404920U (en) | Anti-blocking device for liquid outlet hollow pipe of static pressure kettle for dissolving white carbon black by precipitation method | |
| CN215352193U (en) | Plate-frame filter for producing lutein crystal | |
| CN218151300U (en) | Stifled device is prevented to white carbon thick stuff pump import thick liquid | |
| CN219784098U (en) | Device for reducing water consumption of acetylene by calcium carbide method | |
| CN217312532U (en) | Spray filtering device between hydraulic supports | |
| CN218980588U (en) | Filter cloth regeneration system of vertical filter press of alumina factory | |
| CN218833815U (en) | Sugar liquid filter | |
| CN210560281U (en) | Gasification furnace wet-process continuous slag-discharging conveying system | |
| CN221217171U (en) | Washing liquor intercommunication system for alumina sedimentation separation primary and secondary washing tanks | |
| CN216725947U (en) | Silicon cell section waste water filter-pressing black liquid treatment device | |
| CN219335168U (en) | Device for improving material washing efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |