CN105031987A - Pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate - Google Patents
Pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate Download PDFInfo
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- CN105031987A CN105031987A CN201510396167.9A CN201510396167A CN105031987A CN 105031987 A CN105031987 A CN 105031987A CN 201510396167 A CN201510396167 A CN 201510396167A CN 105031987 A CN105031987 A CN 105031987A
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- magnesium carbonate
- basic magnesium
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Abstract
The invention discloses a pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate. The device comprises an inlet pipe, an outlet pipe, two centrifugal pumps driven by a same motor and a basic magnesium carbonate filter press, wherein the inlet pipe is divided into two pipelines, one of which is connected with the outlet pipe through a three-way cock and one of the centrifugal pumps while the other of which is connected with the outlet pipe through the other one of the centrifugal pumps and another three-way cock; the two three-way cocks communicate with each other up and down through a connecting pipe; the inlet pipe is connected with a basic magnesium carbonate buffer tank through a valve, and an external cycle anti-plugging loop is arranged between the middle part and the cone bottom of the buffer tank; and the outlet pipe is connected with the filter press. Through a reasonable and concise pipeline design and the two three-way cocks, an operation of freely switching serial and parallel connections of the two centrifugal pumps is realized, so that the work efficiency of filter pressing of basic magnesium carbonate is extremely improved; compared with a conventional serial and parallel pipeline valve switching device, the device has the characteristics of being simple in structure, simple to operate and not liable to make mistake, and high in practicality; the cone bottom and a washing pipeline can effectively prevent plugging, so that the material input is facilitated.
Description
Technical field
The present invention relates to the efficient filter-pressing device of a kind of pump circulation anti-blockage type basic magnesium carbonate.
Background technology
Basic magnesium carbonate is one of most important compound in magnesium industry processed, is widely used as the additive of toothpaste, paint, cosmetics, plastics, rubber etc.Usually, basic magnesium carbonate can be obtained by pyrolysis, and namely pyrolysis magnesium bicarbonate obtains, and its key reaction mechanism is 2Mg (HCO3) 2=Mg2 (OH) 2CO3+3CO2+H2O.
In modern industry, the main method of pyrolysis magnesium bicarbonate solution and pyrolysis heavy magnesium water that adopts produces basic magnesium carbonate, need to carry out press filtration after heavy magnesium water pyrolysis completes and could obtain product, the press filtration of basic magnesium carbonate, general is all plate and frame type filter-press, and select centrifugal pump as filter pressing pump, pressure-filtering process obtains filtrate, filter residue progressively runs up to optimal filling degree in filter press simultaneously, carry out respective handling again, finally complete the cycling process of filter residue cleaning, the object of press filtration realizes Separation of Solid and Liquid exactly.In the starting stage of press filtration operation, owing to being complete empty in filter press, concerning filter pressing pump, the quick large discharge input carrying out less lift is the ideal operation state of now press filtration operation; But increase along with filter cake accumulates rear resistance in filter press, when particularly stopping close to press filtration, have maximum pressure expanded state, therefore, larger lift can be had to be to best requirement by the press filtration performance of filter press in press filtration the second half.
But in press filtration operation, existing centrifugal pump all cannot adapt to such process automatically, reaches efficient, high-quality ideal operation state.When general centrifugal pump carries out press filtration operation, be all that the early stage lift of press filtration is lower, but flow is large, makes motor be in overload, especially easily motor damage; To the press filtration middle and later periods, press filtration resistance strengthens rapidly, and the flow quantity of centrifugal pump reduces rapidly, although at this moment motor is operated in the low power state of underloading, efficiency of press filtering is very low; Although filter pressing pump has H-Max output state, because pressing filtering liquid flow is less, the service behaviour of filter press cannot be given full play to and increase work efficiency.
Therefore, centrifugal pump is made to coordinate filter press, basic magnesium carbonate press filtration whole process is made all to reach ideal operation state, the optimum performance playing press filtration is difficult to realize, if but look for another way, adopt the free switching device shifter of two centrifugal pump series and parallels to complete press filtration work, make it in press filtration in early days by two centrifugal pump parallel connections, realize fast, low energy consumption, the efficient press filtration of large discharge; In press filtration, two centrifugal pumps are connected by after-stage, obtain high-lift conveying capacity, after meeting, journey press filtration resistance is large, but still applicable flow can be had to embody efficient press filtration and give full play to the feature of filter press performance, so free switching device shifter of two centrifugal pump series and parallels is adopted to break through the pressure filtering technique bottleneck of basic magnesium carbonate, reach the ideal operation state of press filtration, there is the actual application value of particular importance.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, and provide a kind of pump circulation anti-blockage type basic magnesium carbonate efficient filter-pressing device, this apparatus structure is simple, practical, and the series and parallel that can realize two centrifugal pump device freely switches.
For overcoming the deficiencies in the prior art, the present invention takes following technical scheme:
The efficient filter-pressing device of a kind of pump circulation anti-blockage type basic magnesium carbonate, comprises inlet pipe, goes out pipe, two centrifugal pumps and basic magnesium carbonate filter press, it is characterized in that: two centrifugal pumps pass through belt transmission by same motor; Inlet pipe branches into two pipelines, and a pipeline is connected pipe through three-way cock with centrifugal pump, and another pipeline is connected pipe through another centrifugal pump with another three-way cock; The upper and lower UNICOM of union in two three-way cock warps; Inlet pipe connects basic magnesium carbonate surge tank through valve, and basic magnesium carbonate surge tank has the polycrystalline substance of back taper, is provided with the outer circulation anti-clogging loop that pipeline and circulating pump form in the middle part of surge tank and at cone the end; Go out pipe and connect basic magnesium carbonate filter press.
This device, by swivel tee cock, can realize freely switching of two centrifugal pump series and parallel structures, the press filtration of basic magnesium carbonate can be made to operate and reach optimum Working.
Compared with prior art, beneficial effect of the present invention is also:
The optimum working performance reaching centrifugal pump needed for basic magnesium carbonate press filtration is switched by the series and parallel of centrifugal pump; The free handover operation of series and parallel of two centrifugal pumps is achieved by rationally succinct circuit design and three-way cock; Compared with the series and parallel pipeline valve switching device shifter of routine, threeway plug valve can greatly reduce the consumption of pipeline and valve, and simplifies the handover operation of series and parallel, avoids the mistake occurred in common pipe valving series and parallel handoff procedure; Be conducive to charging at the bottom of the cone of back taper, outer circulation anti-clogging loop effectively can prevent feed blocking, is conducive to the carrying out of press filtration.
Structure of the present invention is simple, and cost is low, practical, has a extensive future.
Accompanying drawing explanation
Fig. 1 is parallel-connection structure schematic diagram of the present invention.
Fig. 2 is cascaded structure schematic diagram of the present invention.
In figure, each label represents:
1, inlet pipe; 2, pipe is gone out; 3, middle union; 4, three-way cock; 5, three-way cock; 6, centrifugal pump; 7, centrifugal pump; 20, basic magnesium carbonate surge tank; 24, valve; 25, pipeline; 26, circulating pump; 30, filter press; 31, motor; 32, belt transmission; 33, belt transmission.
Detailed description of the invention
Now by reference to the accompanying drawings, the present invention is illustrated further.
The efficient filter-pressing device of pump circulation anti-blockage type basic magnesium carbonate as depicted in figs. 1 and 2, comprise inlet pipe 1, two centrifugal pumps (6,7), go out pipe 2 and basic magnesium carbonate filter press, two centrifugal pumps (6,7) pass through belt transmission (32,33) by same motor 31; Inlet pipe 1 branches into two pipelines, and a pipeline is connected pipe 2 through three-way cock 4 with centrifugal pump 7, and another pipeline is connected pipe 2 through another centrifugal pump 6 with another three-way cock 5; Union about 3 UNICOM in two three-way cock 4,5 warps; Inlet pipe 1 connects basic magnesium carbonate surge tank 20 through valve 24, and basic magnesium carbonate surge tank 20 has the polycrystalline substance of back taper, is provided with the outer circulation anti-clogging loop that pipeline 25 forms with circulating pump 26 in the middle part of surge tank 20 and at cone the end; Go out pipe 2 and connect basic magnesium carbonate filter press 30.
Fig. 1 and Fig. 2 is same device different conditions, and device is that single motor 31 drives identical two pumps work respectively by belt 32,33.Basic magnesium carbonate surge tank 20 temporarily can store the heavy magnesium water after pyrolysis, and outer circulation anti-clogging loop can be washed away the cone end, is conducive to basic magnesium carbonate and delivers into filter press 30.
Fig. 1 is centrifugal pump 6,7 parallel connection conveying fluid, and the first branch road of inlet pipe 1 is for connecting centrifugal pump 6, and centrifugal pump 6 goes out the lower end of pipe union three way cock 5, is merged into out pipe 2 from upper end; Second branch road of water inlet pipe 1 is enter centrifugal pump 7 after union three way cock 4, and export through pressurization, be incorporated in out pipe 2, realize two branch road two parallel pumps, carry out large discharge output, middle union 3 is blocking state.
After two three-way cocks are operated as shown in Figure 2, first branch road of inlet pipe 1 is for connecting centrifugal pump 6, centrifugal lower end of pumping pipe union three way cock 5, importing three-way cock 4 upper end is exported by middle union 3 from left end, centrifugal pump 7 is entered from three-way cock 4 left end, realize double pump series connection, the liquid carrying out lift superposition exports.Three-way cock 4 right-hand member forms blocking-up to inlet pipe 1, and three-way cock 5 upper end realizes blocking isolation to going out pipe 2.
Manipulate two three-way cock combinations, the series and parallel that can realize two centrifugal pumps freely switches, and the system making it to form more rationally can adapt to the efficient press filtration operation of basic magnesium carbonate, meets the industrial requirements of heavy magnesium water pyrolysis.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (1)
1. the efficient filter-pressing device of pump circulation anti-blockage type basic magnesium carbonate, comprises inlet pipe, goes out pipe, two centrifugal pumps and basic magnesium carbonate filter press, it is characterized in that: two centrifugal pumps pass through belt transmission by same motor; Inlet pipe branches into two pipelines, and a pipeline is connected pipe through three-way cock with centrifugal pump, and another pipeline is connected pipe through another centrifugal pump with another three-way cock; The upper and lower UNICOM of union in two three-way cock warps; Inlet pipe connects basic magnesium carbonate surge tank through valve, and basic magnesium carbonate surge tank has the polycrystalline substance of back taper, is provided with the outer circulation anti-clogging loop that pipeline and circulating pump form in the middle part of surge tank and at cone the end; Go out pipe and connect basic magnesium carbonate filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396167.9A CN105031987A (en) | 2015-07-08 | 2015-07-08 | Pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396167.9A CN105031987A (en) | 2015-07-08 | 2015-07-08 | Pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate |
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| Publication Number | Publication Date |
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| CN105031987A true CN105031987A (en) | 2015-11-11 |
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| CN201510396167.9A Pending CN105031987A (en) | 2015-07-08 | 2015-07-08 | Pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774045A (en) * | 2016-08-24 | 2018-03-09 | 沈阳铝镁设计研究院有限公司 | A kind of adding method and device of fine filtration of sodium aluminate solution filter aid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137407A (en) * | 1983-12-24 | 1985-07-22 | Koichi Arimoto | Filtration device |
| CN87213415U (en) * | 1987-09-17 | 1988-08-10 | 空军油料研究所 | Series/parallel self-priming type centrifugal pump |
| CN101455916A (en) * | 2008-12-30 | 2009-06-17 | 周立武 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
| CN204034360U (en) * | 2014-09-26 | 2014-12-24 | 吉首大学 | Fill rinsing type ore pulp filter press |
-
2015
- 2015-07-08 CN CN201510396167.9A patent/CN105031987A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137407A (en) * | 1983-12-24 | 1985-07-22 | Koichi Arimoto | Filtration device |
| CN87213415U (en) * | 1987-09-17 | 1988-08-10 | 空军油料研究所 | Series/parallel self-priming type centrifugal pump |
| CN101455916A (en) * | 2008-12-30 | 2009-06-17 | 周立武 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
| CN204034360U (en) * | 2014-09-26 | 2014-12-24 | 吉首大学 | Fill rinsing type ore pulp filter press |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774045A (en) * | 2016-08-24 | 2018-03-09 | 沈阳铝镁设计研究院有限公司 | A kind of adding method and device of fine filtration of sodium aluminate solution filter aid |
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Application publication date: 20151111 |