CN104984576A - Pump circulation anti-blocking type device for efficiently pressing and filtering basic magnesium carbonate - Google Patents
Pump circulation anti-blocking type device for efficiently pressing and filtering basic magnesium carbonate Download PDFInfo
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- CN104984576A CN104984576A CN201510396212.0A CN201510396212A CN104984576A CN 104984576 A CN104984576 A CN 104984576A CN 201510396212 A CN201510396212 A CN 201510396212A CN 104984576 A CN104984576 A CN 104984576A
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- magnesium carbonate
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Abstract
The invention discloses a pump circulation anti-blocking type device for efficiently pressing and filtering basic magnesium carbonate. A first branch of an inlet pipe is connected with an outlet pipe through a three-way rotary plug and a centrifugal pump, and a second branch of the inlet pipe is connected with the outlet pipe through another centrifugal pump and another three-way rotary plug. By means of the same motor, the two centrifugal pumps are in transmission through a belt. The two three-way rotary plugs are both provided with gears which drive a valve element to rotate, the gears of the two three-way rotary plugs are meshed, one of the gears is driven by a driving gear, and the two three-way rotary plugs can be rotationally switched and vertically communicated through a middle connecting pipe. The inlet pipe is connected to a basic magnesium carbonate buffering tank of an inverted-cone-shaped bottom structure through a valve. An outer circulation anti-blocking loop is arranged between the middle of the buffering tank and the cone bottom. The outlet pipe is connected with a pressing and filtering machine. According to the pump circulation anti-blocking type device, by means of the reasonable and simple pipeline design and the two three-way rotary plugs, convenient and fast series and parallel connection switch is achieved, and pressing and filtering work efficiency is improved. Compared with a conventional series and parallel connection switch device, the pump circulation anti-blocking type device has the advantages of being simple in structure, easy to operate and not prone to making mistakes. The outer circulation anti-blocking loop can effectively prevent blocking and facilitate conveying in materials.
Description
Technical field
The present invention relates to the device that basic magnesium carbonate is carried out efficient press filtration by a kind of pump circulation anti-blockage type.
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 convenient 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 convenient 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, a kind of pump circulation anti-blockage type is provided basic magnesium carbonate to be carried out the device of efficient press filtration, this apparatus structure is simple, practical, can realize the convenient switching of series and parallel of two centrifugal pump device.
For overcoming the deficiencies in the prior art, the present invention takes following technical scheme:
Basic magnesium carbonate is carried out a device for efficient press filtration by pump circulation anti-blockage type, 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; Two three-way cocks are equipped with gear driven Spool rotating, and the gear of two three-way cocks engages each other and has driving gear to drive one, and the rotation realizing two three-way cocks switches, 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 is rotated by driven by motor driving gear, can single-power gear-linked stroke, accurately fast switches manipulation, the convenient switching realizing 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; By rationally succinct circuit design and single-power gear-linked stroke, accurately fast switch manipulation, the ingenious series and parallel handover operation being achieved two centrifugal pumps by two three-way cocks; 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; 21, driving gear; 22, gear; 23, gear; 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.
Basic magnesium carbonate is carried out the device of efficient press filtration by pump circulation anti-blockage type as depicted in figs. 1 and 2, and comprise inlet pipe 1, two centrifugal pumps (6,7), go out pipe 2 and basic magnesium carbonate filter press, two centrifugal pumps 6,7 are driven 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; Two three-way cocks 4,5 are equipped with gear 22,23 and drive Spool rotating, the gear 22,23 of two three-way cocks engages each other and has driving gear 21 to drive one, the rotation realizing two three-way cocks 4,5 switches, 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 and at cone the end; Go out pipe 2 and connect basic magnesium carbonate filter press 30.
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.
Device is that single motor 31 drives identical two pumps work respectively by belt 32,33.Fig. 1 and Fig. 2 is same device different conditions, wherein driving gear 21 is driven by motor deceleration Stroke Control, and first drive the gear 23 of union three way cock 5 spool, gear 23 drives the gear 22 of union three way cock 4 spool again, realize single-power gear-linked, fast switch manipulation.
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 right-hand member 4, exports, be incorporated in out pipe 2, realize two branch road two parallel pumps, carry out large discharge output through pressurization, and three-way cock 5 left end centering union is closed and cut off.
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, go out to enter centrifugal pump 7 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.
As described above by single-power gear-linked, carry out stroke fast to switch accurately, manipulate two three-way cock combinations, the convenient switching of series and parallel of two centrifugal pumps can be realized, the system making it to form more rationally can adapt to the efficient press filtration operation of basic magnesium carbonate, meets the requirement of heavy magnesium water pyrolysis industry.
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. basic magnesium carbonate is carried out a device for efficient press filtration by pump circulation anti-blockage type, 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; Two three-way cocks are equipped with gear driven Spool rotating, and the gear of two three-way cocks engages each other and has driving gear to drive one, and the rotation realizing two three-way cocks switches, 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.
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CN201510396212.0A CN104984576B (en) | 2015-07-08 | 2015-07-08 | Basic magnesium carbonate is carried out the device of efficient filter pressing by a kind of pump circulation anti-blockage type |
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CN201510396212.0A CN104984576B (en) | 2015-07-08 | 2015-07-08 | Basic magnesium carbonate is carried out the device of efficient filter pressing by a kind of pump circulation anti-blockage type |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108457833A (en) * | 2018-06-22 | 2018-08-28 | 山西临龙泵业有限公司 | Plunger centrifugal pump station for filter press |
CN114159841A (en) * | 2021-11-23 | 2022-03-11 | 嘉善边锋机械股份有限公司 | Intelligent feeding system of filter press |
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CN87213415U (en) * | 1987-09-17 | 1988-08-10 | 空军油料研究所 | Series/parallel self-priming type centrifugal pump |
JP3551392B2 (en) * | 1994-11-28 | 2004-08-04 | 株式会社トーメック | Filter press filter cloth for cement wastewater Cleaning method |
CN202876470U (en) * | 2012-09-29 | 2013-04-17 | 山东金岭化工股份有限公司 | Filter-pressing variable-frequency and speed-adjusting feeding device |
CN204034360U (en) * | 2014-09-26 | 2014-12-24 | 吉首大学 | Fill rinsing type ore pulp filter press |
CN104436854A (en) * | 2014-12-12 | 2015-03-25 | 四川达竹煤电(集团)有限责任公司石板选煤发电厂 | Slime water serial treatment system and slime water serial treatment process |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108457833A (en) * | 2018-06-22 | 2018-08-28 | 山西临龙泵业有限公司 | Plunger centrifugal pump station for filter press |
CN114159841A (en) * | 2021-11-23 | 2022-03-11 | 嘉善边锋机械股份有限公司 | Intelligent feeding system of filter press |
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Effective date of registration: 20180606 Address after: 214500 96 Fei Yue Road, Xinqiao Industrial Park, Jingjiang, Taizhou, Jiangsu Patentee after: JIANGSU FEIYUE PUMP GROUP CO., LTD. Address before: 416000 No. 120 Renmin South Road, Jishou City, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Patentee before: Jishou University |
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