CN103007795A - Atomization agitating type coal slurry preprocessor - Google Patents
Atomization agitating type coal slurry preprocessor Download PDFInfo
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- CN103007795A CN103007795A CN2012105577764A CN201210557776A CN103007795A CN 103007795 A CN103007795 A CN 103007795A CN 2012105577764 A CN2012105577764 A CN 2012105577764A CN 201210557776 A CN201210557776 A CN 201210557776A CN 103007795 A CN103007795 A CN 103007795A
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Abstract
An atomization agitating type coal slurry preprocessor comprises an impeller agitating type mixing device and an atomization dispersing device, wherein a main body of the atomization dispersing device is provided with a flotation reagent inlet and a compressed air inlet; the flotation reagent inlet is communicated with a dosing hopper; the compressed air inlet is communicated with a compressed air pipeline; a nozzle is communicated with an injecting room; the outlet of the atomization dispersing device is communicated with the impeller agitating type mixing device; the impeller agitating type mixing device is mounted at the lower part of the atomization dispersing device, and consists of an impeller, a stator and a sleeve; the impeller is mounted on an impeller shaft; the other end of the impeller shaft is connected with a transmission device; the transmission device is connected with a motor; the impeller is positioned at the lower part of the sleeve; and the impeller shaft penetrates the sleeve, and is fixedly supported on the sleeve. The preprocessor optimally combines the atomization dispersing device with the impeller agitating type mixing device; flotation reagents are fully dispersed by the atomization dispersing device, and then are added in the mixing device; and as consumption of the flotation reagents is low, and processing capacity is high, the preprocessing effect is modified, and flotation indexes, such as concentrate recovery and the like are improved.
Description
Technical field
The present invention relates to a kind of coal paste preprocessor, particularly relate to a kind of being applied to and carry out the pretreated atomizing stirring-type of dosing coal paste preprocessor before wet coal preparation factory granularity＜0.50mm coal slime enters the flotation device sorting.
Background technology
Because the floatability of China's coal slime is generally relatively poor, so the coal slurry preliminary treatment is requisite link in the floatation coal separation technique, is the prerequisite that flotation device obtains good technical-economic index.The pretreated necessity of coal slurry mainly contains following 4 points: ⑴ fully disperses floating agent, and the floating agent of coal slime is insoluble or be slightly soluble in water, only has it fully is dispersed into a large amount of fine droplets, could evenly be mixed into it in coal slurry; ⑵ be blended in the floating agent that disperses well in the float coal slurry; ⑶ physical-chemical reaction occurs on coal grain surface and need to have certain effect the time in floating agent; ⑷ will enter the float coal slurry and be diluted to rational concentration range.
At present China coal preparation plant widely applies all types of coal paste preprocessors all to have one or two incomplete situations in " disperse, mix " two topmost functions, take the maximum impeller stirring-type ore pulp preprocessor of present application as example: floating agent adds on the impeller in the square socket or on the stator cover plate, enter the impeller back blades through sleeve, the rotation that utilizes impeller disperses floating agent to throw away, and the coal slurry that throws away in impeller outlet place and impeller mixes.Because the rotary speed of impeller is low, especially with the maximization of equipment, wheel speed is more and more lower, this type preprocessor wheel speed that diameter is 3.5 meters only is 175r/min, under this rotating speed, impeller can not effectively disperse floating agent, causes the floating agent consumption large, pretreating effect is poor, and the floatation indicators such as the concentrate rate of recovery, tailings ash content are undesirable.
Summary of the invention
Goal of the invention of the present invention is for prior art floating agent consumption large, pretreating effect is poor, the undesirable deficiencies of floatation indicators such as the concentrate rate of recovery, tailings ash content, provide a kind of dispersal device and impeller stirring-type mixing arrangement of will atomizing organically to make up, realize the dispersion of floating agent and disperse after floating agent and the mixed uniformly atomizing stirring-type coal paste preprocessor of coal slurry.
Realize that the technical scheme that the foregoing invention purpose adopts is:
A kind of atomizing stirring-type coal paste preprocessor, comprise drive motors, the atomizing dispersal device, mixing arrangement, the atomizing dispersal device, mixing arrangement is installed in respectively in the mixing arrangement staving, the mixing arrangement staving is provided with feeding mouth at the bottom of the top, described atomizing dispersal device is mainly by atomizing dispersal device main body, add drug bucket, the jet chamber, nozzle forms, atomizing dispersal device main body is provided with floating agent entrance and compressed air inlet, the floating agent entrance with add drug bucket and be communicated with, the compressed air inlet compressed air line outer with being arranged on the mixing arrangement staving is connected, the nozzle of atomizing dispersal device communicates with the jet chamber, and the outlet of atomizing dispersal device is connected with mixing arrangement;
Described mixing arrangement is impeller stirring-type mixing arrangement, be installed in the bottom of atomizing dispersal device, impeller stirring-type mixing arrangement mainly is comprised of impeller, mixing arrangement staving, sleeve, be installed on the impeller shaft, the impeller shaft other end is connected with transmission device, and impeller is positioned at the bottom of sleeve, and impeller shaft passes sleeve, and be fixedly supported on the sleeve, impeller is communicated with feeding pipe.
As preferred version, the outlet of described atomizing dispersal device is connected by the sleeve of pipeline with impeller stirring-type mixing arrangement.
As preferred version, described impeller is comprised of impeller body, impeller back blades and impeller cavity, and the impeller back blades is fixed on the impeller body.
As preferred version, described impeller cavity is communicated with the feeding pipe that is positioned at staving bottom feeding mouth.
As preferred version, described mixing arrangement staving is cylinder-conical combining structure.
Adopt technique scheme, compared with prior art, remarkable result of the present invention is: the present invention's dispersal device and impeller stirring-type hybrid optimization combination that will atomize, join again in the mixing arrangement with the atomizing dispersal device after floating agent is fully disperseed, the atomizing dispersal device is take compressed air as power, medicament is dispersed into the fine droplet of diameter 5 μ m～8 μ m, and dispersion effect is good, has improved the degree of scatter of floating agent; In the course of work of impeller stirring-type mixing arrangement, floating agent contacts in the mixed zone after impeller throws away with coal slurry, medicament and coal grain all have certain kinetic energy, with certain speed collision, be conducive to overcome coal grain surface hydrated sheath can the peak, accelerate medicament and coal grain contact and medicament in the expansion of adhering on coal grain surface.Thereby reduce the floating agent consumption, improve disposal ability, improve pretreating effect, improve the concentrate rate of recovery, the tail coal ash floatation indicators that grades.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the atomize structure chart of dispersal device of the present invention.
Fig. 3 is fundamental diagram schematic diagram of the present invention.
Among the figure, add drug bucket 1, atomizing dispersal device 2, sleeve 3, impeller back blades 4, impeller 5, staving 6, impeller cavity 7, feeding pipe 8, mixing arrangement 9, nozzle 10, atomizing dispersal device main body 11, compressed air inlet 12.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Referring to accompanying drawing 1-2, the invention provides a kind of atomizing stirring-type coal paste preprocessor, by mainly by impeller stirring-type mixing arrangement 8, atomizing dispersal device 2 forms, atomizing dispersal device 2 is by atomizing dispersal device main body 11, add drug bucket 1, the jet chamber, nozzle 10 forms, atomizing dispersal device main body 11 is provided with floating agent entrance and compressed air inlet 12, the floating agent entrance is communicated with the drug bucket 1 that adds that is installed in mixing arrangement staving 6 tops, compressed air inlet 12 compressed air line outer with being arranged on preprocessor is connected, atomizing dispersal device nozzle 10 communicates with the jet chamber, and the outlet of atomizing dispersal device 2 is connected by the sleeve 3 of pipeline with impeller stirring-type mixing arrangement 9.Mixing arrangement 9 is impeller stirring-type mixing arrangements, impeller stirring-type mixing arrangement 9 is installed in the bottom of atomizing dispersal device 2, formed by impeller 5, sleeve 3 etc., impeller 5 is comprised of impeller body, impeller back blades 4 and impeller cavity 7, for double-decker is divided into two-layerly up and down, impeller back blades 4 is fixed on the impeller body.Impeller 5 is installed on the impeller shaft, and the impeller shaft other end is connected with the transmission device that is installed in staving 6 tops, and transmission device is connected with motor, impeller 5 is positioned at the bottom of sleeve 3, impeller shaft passes sleeve 3, and is fixedly supported on the sleeve 3, and impeller cavity 7 is communicated with the feeding pipe 8 that is positioned at staving 6 bottoms.Impeller back blades 4, impeller body form the upper strata of impeller, and its Main Function is to inhale medicine.Impeller cavity 7 forms the lower floor of impeller, and Main Function is to inhale coal slurry.
The staving 6 of mixing arrangement is cylinder-conical combining structure, and feeding pipe 8 communicates with the feeding mouth of staving in the middle of being arranged on staving 6 bottoms.
The course of work of the present invention is seen Fig. 3:
Compressed air enters in the atomizing dispersal device 2 by the road, compressed air is through the at a high speed ejection of nozzle 10 of atomizing dispersal device, in the jet chamber of atomizing dispersal device main body 11, produce negative pressure, form swabbing action, suck fast adding the floating agent that adds in the drug bucket 1 of atomizing dispersal device to, injected gas shock cutting, aerosol dispersion.Then enter the impeller back blades 4 of rotation by sleeve 3, be thrown out of and enter into the mixed zone.
Entering the float coal slurry feeding pipe 8 by impeller stirring-type mixing arrangement staving 6 bottoms enters in the cavity 7 of impeller, the impeller that is rotated throws away and enters the mixed zone, fully contact mixing in the mixed zone with the floating agent after the atomizing, finish pretreated coal slurry and overflow from the discharging opening on impeller stirring-type mixing arrangement staving 6 tops, afterwards to the flotation device sorting.
Claims (5)
1. atomizing stirring-type coal paste preprocessor, comprise drive motors, transmission device, atomizing dispersal device, mixing arrangement, drive motors is installed in the transmission device side, atomizing dispersal device, mixing arrangement are installed in respectively in the mixing arrangement staving, the mixing arrangement staving is provided with feeding mouth at the bottom of the top, side wall upper part is provided with discharging opening, it is characterized in that
Described atomizing dispersal device mainly by atomizing dispersal device main body, add drug bucket, jet chamber, nozzle and form, atomizing dispersal device main body is provided with floating agent entrance and compressed air inlet, the floating agent entrance with add drug bucket and be communicated with, the compressed air inlet compressed air line outer with being arranged on the mixing arrangement staving is connected, the nozzle of atomizing dispersal device communicates with the jet chamber, and the outlet of atomizing dispersal device is connected with mixing arrangement;
Described mixing arrangement is impeller stirring-type mixing arrangement, be installed in the bottom of atomizing dispersal device, impeller stirring-type mixing arrangement mainly is comprised of impeller, mixing arrangement staving, sleeve, be installed on the impeller shaft, the impeller shaft other end is connected with transmission device, impeller is positioned at the bottom of sleeve, and impeller shaft passes sleeve and is fixedly supported on the sleeve, and impeller is communicated with feeding pipe.
2. atomizing stirring-type coal paste preprocessor according to claim 1 is characterized in that, the outlet of described atomizing dispersal device is connected by the sleeve of pipeline with impeller stirring-type mixing arrangement.
3. atomizing stirring-type coal paste preprocessor according to claim 1 is characterized in that, described impeller is comprised of impeller body, impeller back blades and impeller cavity, and the impeller back blades is fixed on the impeller body.
4. according to claim 1 or 3 described atomizing stirring-type coal paste preprocessors, it is characterized in that described impeller cavity is communicated with the feeding pipe that is positioned at staving bottom feeding mouth.
5. atomizing stirring-type coal paste preprocessor according to claim 1 is characterized in that, described mixing arrangement staving is cylinder-conical combining structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105577764A CN103007795A (en) | 2012-12-20 | 2012-12-20 | Atomization agitating type coal slurry preprocessor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105577764A CN103007795A (en) | 2012-12-20 | 2012-12-20 | Atomization agitating type coal slurry preprocessor |
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| CN103007795A true CN103007795A (en) | 2013-04-03 |
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| CN2012105577764A Pending CN103007795A (en) | 2012-12-20 | 2012-12-20 | Atomization agitating type coal slurry preprocessor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032623A (en) * | 2015-09-02 | 2015-11-11 | 天地（唐山）矿业科技有限公司 | Pretreatment equipment for coal slime before floatation feed |
Citations (4)
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| JPH02207830A (en) * | 1989-02-09 | 1990-08-17 | Iseki Tory Tech Inc | Method and device for mixing liquid with flocculant |
| CN101773795A (en) * | 2010-01-15 | 2010-07-14 | 唐山国华科技有限公司 | Atomized fall type coal paste preprocessor |
| CN102160973A (en) * | 2011-03-14 | 2011-08-24 | 唐山国华科技有限公司 | Spray-cascade coal slurry preprocessor |
| CN202942825U (en) * | 2012-12-20 | 2013-05-22 | 唐山森普工程设计有限公司 | Atomization stirring type coal slurry preprocessor |
-
2012
- 2012-12-20 CN CN2012105577764A patent/CN103007795A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02207830A (en) * | 1989-02-09 | 1990-08-17 | Iseki Tory Tech Inc | Method and device for mixing liquid with flocculant |
| CN101773795A (en) * | 2010-01-15 | 2010-07-14 | 唐山国华科技有限公司 | Atomized fall type coal paste preprocessor |
| CN102160973A (en) * | 2011-03-14 | 2011-08-24 | 唐山国华科技有限公司 | Spray-cascade coal slurry preprocessor |
| CN202942825U (en) * | 2012-12-20 | 2013-05-22 | 唐山森普工程设计有限公司 | Atomization stirring type coal slurry preprocessor |
Non-Patent Citations (3)
| Title |
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| 丛建: "我国煤浆预处理器的研究现状与发展趋势", 《煤矿机械》 * |
| 俞宏珍: "XY-3.5 矿浆预处理器在选煤厂的应用", 《矿山机械》 * |
| 杨玉华等: "对XY型矿浆预处理器工作情况简要分析", 《煤质技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032623A (en) * | 2015-09-02 | 2015-11-11 | 天地（唐山）矿业科技有限公司 | Pretreatment equipment for coal slime before floatation feed |
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Application publication date: 20130403 |