CN202343454U - Power selecting and collecting device - Google Patents
Power selecting and collecting device Download PDFInfo
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- CN202343454U CN202343454U CN2011203540747U CN201120354074U CN202343454U CN 202343454 U CN202343454 U CN 202343454U CN 2011203540747 U CN2011203540747 U CN 2011203540747U CN 201120354074 U CN201120354074 U CN 201120354074U CN 202343454 U CN202343454 U CN 202343454U
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Abstract
The utility model discloses a power selecting and collecting device, which comprises a powder selecting pipe and a powder collecting pipe, wherein the upper part of the powder selecting pipe is provided with a feeding hole; the lower end of the powder selecting pipe is provided with a discharging hole; the powder selecting pipe and the powder collecting pipe are communicated with each other; the powder selecting pipe is arranged obliquely to a horizontal plane; an included angle alpha between the powder selecting pipe and the horizontal plane is larger than or equal to 45 degrees and smaller than or equal to 90 degrees; the powder collecting pipe is arranged horizontally; the lower end of the powder selecting pipe is provided with an air inlet; the powder selecting pipe is provided with an air outlet at one end which is communicated with the powder selecting pipe; and the air outlet is connected with a draught fan. According to the device, a high air speed required by a powder selecting process of a centrifugal separation technology is not required to be provided, the aims of selecting powder and subsequently collecting powder can be fulfilled only by setting the air speed at 2 meters per minute in the powder selecting pipe, and the energy consumption is lowered; most importantly, powder selection and powder collection are performed in the powder selecting pipe and the powder collecting pipe which are communicated but not interfered with each other, so that the influence of air flow on powder collection during centrifugal separation is avoided, and the powder selecting and powder collecting efficiencies are increased; and the entire pressure loss of the device does not surpass 100Pa, and is only 5-10 percent that of the conventional centrifugal separation powder selecting system, and a remarkable energy-saving effect is achieved.
Description
Technical field
The utility model relates to a kind of gas-solid separating device, relates in particular to a kind of powder and device of receiving powder of selecting.
Background technology
It is the conventional process in the modern industry production process that powder is selected in industry; Be widely used in industries such as metallurgy, chemical industry, cement, food; Cement industry only, with regard to raw meal preparation, grog, raw coal, the annual powder amount of selecting just can reach nearly 5,000,000,000 tons; For the so huge powder amount of selecting, make in the cement production process electric energy more than 60% all consume and select the powder link in powder process.
At present, powder manufacturings such as manufacture of cement extensively utilization be exactly powder concentrator.So far, following three generations has been experienced in the development of powder concentrator:
First generation powder concentrator; It is centrifugal classifier; Be the invention of Britain Mang Fute (Mumford) and Moody's (Moody), cardinal principle is: the buoyancy based on the material particles of different-grain diameter produces in ascending air is different, and utilizes the balance between the air resistance of material particles in the relative motion process, centrifugal force, the gravity simultaneously; Make the different particle of size produce variable-speed motion, thereby make gradation.When selecting powder, generally need with centrifugal classifier and circulating air blower fan and from air the whirlwind tube of sorting fine powder be combined into an one-of-a-kind system and use jointly.
Second generation powder concentrator, promptly cyclone type powder sorting machine is that early sixties is developed by company of Germany Weida lattice (Wedag); The improvement development of second generation powder concentrator is because the circulation of gas is carried out in internal system in the first generation centrifugal classifier; In in the process of circulation, being easy to owing to air-flow circulation cause material after centrifugalizing further be recycled destroy, thereby had a strong impact on separative efficiency.Second generation powder concentrator externally is provided with the big blade that circulating fan independently replaces centrifugal classifier; Be provided with 6-8 whirly tube around the body; To replace the urceolus of centrifugal classifier; Improve the separative efficiency of fine powder, the gas inner loop mode with centrifugal classifier changes the outer circulation mode into simultaneously.
Third generation powder concentrator, i.e. high-efficient powder concentrator is representative with the O-Sepa powder concentrator of Japan in 1979 little wild field company exploitation, it has not only kept the outside air feed of cyclone type powder sorting machine, circulating current high efficiency separation, secondary and has selected advantages such as powder; Use the snail air-flow simultaneously and selected the powder principle; Replace little fan blade with cage rotor; Air communication is crossed the guide vane tangent line and is got into, and steady air current is even in whole powder-separating area, the chance that repeatedly repeats sorting is provided for top-down material; Qualified fine powder is extracted out from top by central tube with air-flow, gets into follow-up dust-precipitator fines collection is got off; Meal returns grinding machine grinding once more from the cone bottom, form the circle streaming system.
No matter how the structure of above-mentioned three generations's powder concentrator is provided with, it all is based on centrifugal principle design, and CN2754748Y just discloses a kind of high-efficient powder concentrator such as the Chinese patent document; It has housing; Be equipped with in the housing and dynamically select the powder structure, the housing top is equipped with the power set that drive dynamic powder concentrator structure, and there is product outlet on the housing top; The below tipping of housing has rising airduct and meal ash bucket and meal tremie pipe; The lower sides of rising airduct is provided with mill tail air port and air distribution outlet, and feed hopper is arranged on the sidewall of rising airduct epimere, and sets up the meal feedback outlet in the lower end of rising airduct.This powder concentrator is owing to adopt the enterprising material of rising airduct, and material carries out the gravity preparation powder one time in the rising airduct, and bigger particle falls under the effect of gravity, sends grinding machine back to through meal feedback outlet and conveying equipment and refaces; Fine powder then mixes the back fully with ascending air and gets into uniformly the powder concentrator housing and dynamically get into the dynamic powder-separating area of powder concentrator through wind blade between the wind blade of powder concentrator structure and select powder in the rising airduct; The effect of wind blade is to guarantee that material is along the whole even distribution of rotor; Simultaneously, make the amalgam rotation of air-flow and grinding material.
In this technology, its dynamic powder-separating area utilizes centrifugal principle to select powder, at first; Use centrifugal principle to select powder; Because the ability that air-flow carries powder generally all is no more than 500 gram/cubic meters, certainly will increase like this and use air quantity; Need the very high wind speed of device configuration simultaneously, cause system energy consumption very big; Secondly, in the environment of high wind speed like this, the wearing and tearing of equipment under the high wind speed state have further been aggravated; Then, in the said equipment of prior art, for fear of the airflow influence between the distinct device; Connecting line between the general device is all long, for fear of the deposition of powder in pipeline, must keep the wind speed of at least 20 meter per seconds in the pipeline; Compare with low wind speed; So high wind speed has strengthened the linear loss of pipeline, has reduced the efficient of selection by winnowing, also makes energy consumption increase simultaneously.The most key is, centrifugalize and select powder to carry out at same environment, and this environment is the environment of high wind speed, and the easy like this air-flow when causing centrifugalizing has caused direct influence to selecting the required sedimentation of powder, makes grinding efficiency be affected.
The utility model content
The utility model technical problem to be solved is that the powder equipment that selects of the prior art utilizes centrifugal principle to select powder need dispose high wind speed; The problem that causes system energy consumption increase, while wear equipment, increase pipeline linear loss; And select the centrifugation of powder equipment in the prior art and select powder to carry out at same high wind speed environment; Airflow influence when causing centrifugalizing easily selects the powder sedimentation; Make the affected problem of grinding efficiency, so provide that a kind of selection by winnowing precision is high, selection by winnowing efficient is high, energy consumption is little, to little the selecting powder and receive the powder device of equipment attrition.
For solving the problems of the technologies described above, the utility model provides a kind of and has selected powder and receive the powder device, comprises and selects tube cell and receive tube cell, and on the said top of tube cell of selecting charging aperture is set, the lower end is provided with discharging opening, and said tube cell and the said receipts tube cell of selecting is communicated with setting;
The said tube cell that selects favours the horizontal plane setting, and the angle between itself and the horizontal plane is more than or equal to 45 ° and smaller or equal to 90 °; Said receipts tube cell is horizontally disposed with;
The said lower end of tube cell of selecting is provided with air inlet, and said receipts tube cell is away from being provided with air outlet with a said end that selects tube cell to be connected, and connects at said air outlet place air-introduced machine is set.
The said tube cell that selects is perpendicular to the horizontal plane setting.
Said receipts tube cell is connected with the said top of tube cell of selecting, and the said top of tube cell of selecting is sealed.
Said air-introduced machine is connected with said air outlet through sack cleaner.
Extension is provided with the air-flow circulation line between said air outlet and said sack cleaner, and said air-flow circulation line is connected with said air inlet through circulating fan.
Said air-flow circulation line is connected with said air outlet.
The said longitudinal section of tube cell and said receipts tube cell of selecting is rectangular.
The sectional area of said receipts tube cell is several times as much as the said sectional area that selects tube cell; And saidly select the air velocity in the tube cell to be several times as much as the air velocity in the said receipts tube cell.
The sectional area of said receipts tube cell is greater than said 2-5 times of selecting the tube cell sectional area.
The sectional area of said receipts tube cell is greater than said 5 times of selecting the tube cell sectional area.
The length of said receipts tube cell is more than or equal to said 5 times of selecting tube cell bottom to the height of said connection place.
The said movement velocity of selecting air-flow in the tube cell is more than or equal to 2 meter per seconds, and the horizontal movement speed of air-flow is less than or equal to 1 meter per second in the said receipts tube cell.
On the said inwall that selects tube cell, be staggeredly equipped with one or more guide angles, said guide angle tilts towards the direction away from said air inlet towards a side of said air inlet.
Adjacent both sides parallel between the adjacent said guide angle, and said guide angle is triangular in shape.
Select connection place of tube cell and said receipts tube cell to be formed with the transiting slide plate section said, said transiting slide plate section top is the inclined-plane, and said inclined-plane is from extremely rising gradually near said receipts tube cell one end near said tube cell one end that selects; Have between the last inwall of the top of said transiting slide plate section and said receipts tube cell and be suitable for said air-flow and carry the mobile spacing that powder passes through; In said at least one or a plurality of guide angle; Have at least a guide angle to be arranged on said the choosing on the tube cell sidewall relative, and a side and the vertical range said inclined-plane between of said guide angle towards said inclined-plane equal said mobile spacing with inclined-plane, said transiting slide plate section top.
Said select connection place of tube cell and said receipts tube cell and be positioned at said receipts tube cell on inwall be provided with baffle plate, said baffle plate is parallel with said inclined-plane.
Along the flow direction of said air-flow, in said receipts tube cell bottom one or more aggregate bins are set, said aggregate bin is connected with said receipts tube cell; Said aggregate bin bottom is provided with second ash-valve that is used to seal powder.
Be connected with first ash-valve in the said bottom of tube cell of selecting, said first ash-valve is connected with slag conveyer respectively with said second ash-valve to be carried powder.
The utility model is described to be selected powder and receives the powder device, compares prior art and has following advantage:
(1) the utility model is described selects powder and receives the powder device; By selecting tube cell and receiving tube cell and constitute, the said tube cell that selects favours the horizontal plane setting, and the angle between itself and the horizontal plane is more than or equal to 45 ° and smaller or equal to 90 °; Preferably equal 90 ° of settings, and said receipts tube cell is horizontally disposed with; Wherein, select tube cell to be used to accomplish the classification of powder, receiving tube cell then is to accomplish gas solid separation, realizes receiving powder.Its operation principle is in selecting tube cell, to remain along the said axial air-flow of tube cell that selects, and utilizes the difference of powders property and the difference of powder particles classification, and promptly the floating velocity of the powder of different-grain diameter in air-flow is different; Wherein, floating velocity can overcome self gravitation less than the powder of air velocity and upwards operation under the promotion of uprush, thereby can in receiving tube cell, realize and the separating and collect of air-flow; Floating velocity is greater than the powder of air velocity, under the effect of self gravitation, overcomes the motive force of uprush and operation downwards realizes collecting in the said bottom of tube cell of selecting.
After the air-flow that carries powder gets into and receives in the tube cell; Since air-flow carries powder in the horizontal movement process ability well below air-flow in the vertical ability in motion process; And the speed of air-flow along continuous straight runs motion is well below vertical speed; Therefore the air-flow concentration of carrying powder after in the entering level is received tube cell will be carried the saturated concentration that powder moves in the horizontal direction considerably beyond air-flow, then when air-flow when level receipts tube cell moves, the powder that carries in the air-flow will constantly be separated from air-flow; To receiving tube cell bottom sedimentation, realize separating of powder and air-flow.
Described powder and the receipts powder device of selecting of the utility model adopted above-mentioned operation principle to select powder and receipts powder; Need not to dispose necessary high wind speed in the centrifugal separation technology selective separation process; The wind speed that 2 meter per seconds also only need be set in selecting tube cell can realize selecting the purpose of powder and follow-up receipts powder, has reduced energy consumption; System's each several part all is operated in low wind speed state, and is not easy to wear, good stability, long service life; The most key is, the device of the utility model will select powder and receive powder and be communicated with but the tube cell that selects of non-interference carries out with receiving in the tube cell at two, has avoided in the centrifugation air current flow to select powder and receive powder efficient receiving the influence of powder, having improved; And the whole crushing of device is no more than 100Pa, is merely the 5-10% that the powder system crushing is selected in the tradition centrifugation, and energy-saving effect is obvious.And the utility model is described to be selected powder and receives the powder device owing to centrifugal device need be set two simple pipelines only are set can realize separating of powder and air-flow, so the low cost of manufacture of installing.
(2) the utility model is described selects powder and receives the powder device; Said receipts tube cell is set to be connected with the said top of tube cell of selecting; And the said top of tube cell of selecting sealed, avoided powder under uprush promotes and fly out like this from the top of selecting tube cell, cause dust pollution.
(3) the utility model is described selects powder and receives the powder device, and the sectional area that said receipts tube cell is set is several times as much as the said sectional area that selects tube cell, and the sectional area of preferred said receipts tube cell is greater than said 5 times of selecting the tube cell sectional area; And saidly select the air velocity in the tube cell to be several times as much as the air velocity in the said receipts tube cell; Thereby the air-flow that has guaranteed to carry powder get into receive behind the tube cell can be better along with gas flow consumed energy and slowing down gradually; Further add air flow and separate with the contact friction of receiving the tube cell inwall and with the powder that carry its inside and carry out sedimentation, effectively realize gas solid separation.
Likewise; The utility model is described to be selected powder and receives the powder device, and the length of said receipts tube cell is because receive the horizontal length of tube cell gas-solid separating effect to be had very big influence more than or equal to 5 times of the said height that selects tube cell bottom to said connection place; If promptly length is long as far as possible; Air-flow just can fully slow down and sedimentation in above-mentioned long as far as possible distance so, make powder fully with flow separation, realize that air-flow reaches 95% from receiving tube cell import department to air outlet concentration reduction amplitude.
(4) the utility model is described selects powder and receives the powder device; On the said inwall that selects tube cell, be staggeredly equipped with one or more guide angles; Said guide angle tilts towards the direction away from said air inlet towards a side of said air inlet, because guide angle is to tilt towards the direction away from air inlet towards the setting of air inlet one side, thereby forms the guiding trend along the air current flow direction; Retrained the flow direction of air-flow, guaranteed that air-flow carries the order of powder motion; And being provided with of guide angle guaranteed that the big powder of floating velocity can repeatedly collide selection by winnowing through a plurality of guide angles in the process that falls, improved the precision of sorting classifying.
In addition; Described powder and the receipts powder device of selecting of the utility model selects connection place of tube cell and said receipts tube cell to be formed with the transiting slide plate section said; Said transiting slide plate section top is the inclined-plane, and said inclined-plane is from extremely rising gradually near said receipts tube cell one end near said tube cell one end that selects; Have between the last inwall of the top of said transiting slide plate section and said receipts tube cell and be suitable for said air-flow and carry the mobile spacing that powder passes through; Guaranteed that like this big powder of floating velocity of being received the very fraction of tube cell by carried away by air movement entering level can drop on the inclined-plane of transiting slide plate section, after the inclined-plane landing, got into once more and select tube cell to carry out further selection by winnowing through the collision of a plurality of guide angles.
(5) the utility model is described selects powder and receives the powder device; Said select connection place of tube cell and said receipts tube cell and be positioned at said receipts tube cell on inwall be provided with baffle plate; Said baffle plate is parallel with said inclined-plane; When carrying the airflow passes baffle position of powder, can not make gas shock select the top of tube cell to cause powder to be attached to like this and select the tube cell top owing to the flowing velocity influence of uprush; Guaranteed that air-flow carries powder entering level as much as possible and receives tube cell, provided safeguard for obtaining higher receipts powder rate.
Description of drawings
For the content that makes the utility model is understood more easily, the utility model combines the accompanying drawing and the specific embodiment that the content of the utility model is further explained;
Shown in Figure 1 is described powder and the structural representation of receiving the powder device of selecting of the utility model;
Shown in Figure 2 is the said structural representation that selects powder and receipts powder device that is provided with guide angle and transiting slide plate section of the utility model;
Wherein, Reference numeral is:
1-selects tube cell, and 2-receives tube cell, 3-air inlet, 4-air outlet, 5-air-introduced machine, 6-sack cleaner, 7-air-flow circulation line, 8-circulating fan, 9-guide angle, 10-transiting slide plate section, 11-inclined-plane, 13-aggregate bin, 14-first ash-valve, 15-second ash-valve.
The specific embodiment
Embodiment 1
Described powder and the device of receiving powder of selecting of the utility model; Its structure is seen Fig. 1; Can see from figure that this device comprises and select tube cell 1 and receive tube cell 2 that on the said top of tube cell of selecting charging aperture (select among the figure shown in the tube cell left side central portion arrow and locate) is set, the lower end is provided with discharging opening and air inlet 3; The said tube cell 1 that selects is perpendicular to the horizontal plane setting, that is to say select tube cell 1 axially and the angle between the horizontal plane equal 90 °; Said receipts tube cell 2 is horizontally disposed with; Said receipts tube cell 2 is connected with the said top of tube cell 1 of selecting; And the said top of tube cell 1 of selecting sealed, said receipts tube cell 2 is away from being provided with air outlet 4 with a said end that selects tube cell 1 to be connected, and connects at said air outlet 4 places air-introduced machine 5 is set; White arrow is represented the flow direction of powder among the figure, and black arrow is represented the flow direction of air-flow.
In the present embodiment, the said tube cell 1 that selects is a rectangular tube with receiving tube cell 2, and the sectional area of said receipts tube cell 2 is said more than 5 times of tube cell 1 sectional area that select, and selects in the present embodiment to be set to 6 times; The length of said receipts tube cell 2 is selected to be set to 6 times more than or equal to said 5 times of selecting tube cell 1 bottom to the height of said connection place in the present embodiment; Also can select center of circle pipe etc. for selecting tube cell 1 and the selection of receiving tube cell 2 according to the construction demand.During work, saidly select the air velocity in the tube cell 1 can be set to be several times as much as the air velocity in the said receipts tube cell 2, preferably selecting the air velocity in the tube cell 1 is more than 5 times of air velocity in the said receipts tube cell 2, selects in the present embodiment to be set to 6 times.
In addition; The said tube cell 1 that selects can be set to favour the horizontal plane setting; Angle between itself and the horizontal plane can be selected more than or equal to 45 ° and smaller or equal to 90 ° unspecified angle; When selecting tube cell 1 to select non-perpendicular state to be provided with, the air intake direction of air inlet is preferably along the said axial setting of selecting tube cell when said.
Wherein, be preferably the negative pressure induced wind machine, guaranteed that like this leaking can not appear in powder, better realized the sealing of device powder for the selection of air-introduced machine.
As the embodiment that can further optimize; Described powder and the device of receiving powder of selecting of the utility model can also be on the basis of said structure; Further between said air-introduced machine 5 and said air outlet 4, sack cleaner 6 is set; Being provided with of sack cleaner guaranteed that air-flow can avoid the excessive contaminated environment of powder earlier through its filtration, purification that carries out powder when air-introduced machine 5 is discharged.
Owing in the air-flow that air outlet 4 comes out, also carry some powders; In order to realize further selection by winnowing and the collection of this part powder in selecting tube cell 1 better; As embodiment that can conversion; Can also be on the basis of above-mentioned embodiment, extension is provided with air-flow circulation line 7 between said air outlet 4 and said sack cleaner 6, and said air-flow circulation line 7 is connected with said air inlet 3 through circulating fan 8; The air-flow input that after receiving tube cell 2 air outlets and coming out, promptly can circulate once more through the air-flow that air-flow circulation line 7 and circulating fan 8 carry powder with this part is selected in the tube cell 1 like this, carries out further selection by winnowing.Wherein, said air-flow circulation line 7 can be selected directly to be connected with said air outlet 4, also can select to be set on the connecting line of said air outlet 4 and said sack cleaner 6 or air-introduced machine 5.
Embodiment 2
Described powder and the device of receiving powder of selecting of the utility model; Can also be on the architecture basics of device described in the embodiment 1; Further on the said inwall that selects tube cell 1, be staggeredly equipped with one or more guide angles 9, said guide angle towards a side of said air inlet 3 towards the direction away from said air inlet 3 tilt (seeing shown in Figure 2).From figure, can see that guide angle 9 is set to equilateral triangle, adjacent both sides parallel between the adjacent said guide angle 9; As embodiment that can conversion; As long as the setting of guide angle 9 also can be selected to be set to satisfy at the side of said guide angle 9 towards said air inlet 3 to tilt towards the direction away from said air inlet 3; Then can be set to Any shape for said guide angle 9 away from a side of said air inlet; White arrow is represented the flow direction of powder among the figure, and black arrow is represented the flow direction of air-flow.This device in, guide angle 9 is set after, the preferred feedstock mouth is arranged on the said top of selecting tube cell 1.
Wherein, being crisscross arranged of guide angle 9 shows as the axial cross section that selects tube cell 1 from said, said guide angle 9 indentation is set.
In the present embodiment, selecting the length A 1 of selecting tube cell 1 is set is that 0.5 meter width is 0.8 meter, and sectional area is 0.4m
2, the length L of receiving tube cell 2 is 8 meters, and height A 2 is 1.2 meters, and sectional area is 2.1 m
2To select the air velocity in the tube cell 1 be 3 meter per seconds said, and the air velocity of said receipts tube cell 2 is 0.57 meter per second.Air-flow wind speed in air-flow circulation line 7 and air-introduced machine 5 is 10 meter per seconds.
Embodiment 3
In the above-described embodiments, the described device that selects powder and receive powder directly connects in said connection place of selecting tube cell 1 and said receipts tube cell 2 and is connected; During real work, when air-flow carries material to connection place, occur meeting through regular meeting and slide into the problem that repeats selection by winnowing in the tube cell once more of selecting under the little material of floating velocity, influenced grinding efficiency like this.For this reason; Described in the present embodiment powder and the device of receiving powder of selecting selects connection place of tube cell 1 and said receipts tube cell 2 to be formed with transiting slide plate section 10 said; See shown in Figure 3ly, white arrow is represented the flow direction of powder among the figure, and black arrow is represented the flow direction of air-flow; Said transiting slide plate section 10 tops are inclined-plane 11, and said inclined-plane 11 is from extremely rising gradually near said receipts tube cell 2 one ends near said tube cell 1 one ends that select; Have between the last inwall of the top of said transiting slide plate section 10 and said receipts tube cell 1 and be suitable for said air-flow and carry the mobile spacing that powder passes through; In said at least one or a plurality of guide angle 9; Have at least a guide angle 9 to be arranged on said the choosing on tube cell 1 sidewall relative, and a side and the vertical range said inclined-plane between of said guide angle 9 towards said inclined-plane equal said mobile spacing with inclined-plane, said transiting slide plate section 10 top.In the present embodiment, be provided with three guide angles.
On the basis of the foregoing description, as preferred embodiment, said select connection place of tube cell 1 and said receipts tube cell 2 and be positioned at said receipts tube cell on inwall be provided with baffle plate, said baffle plate is parallel with said inclined-plane 11.
In the above-described embodiments; In receiving tube cell 2 when air-flow when level receipts tube cell moves, the powder that carries in the air-flow will constantly be separated from air-flow, to the 2 bottom sedimentations of receipts tube cell; Realize separating of powder and air-flow; Powder for the ease of separation obtains is collected timely, in the present embodiment, utilizes the flow direction of air-flow along said air-flow; In said receipts tube cell 1 bottom the aggregate bin 13 that one or more and said receipts tube cell is connected is set, said aggregate bin 13 can be provided with one, two or three or more; Said aggregate bin 13 bottoms are provided with second ash-valve 15 that is used to seal powder.Be connected with first ash-valve 14 in the said bottom of tube cell of selecting, said first ash-valve 14 is connected with slag conveyer respectively with said second ash-valve 15 to be carried powder.
In the present embodiment, selecting the length A 1 of selecting tube cell 1 is set is 0.4 meter, and width is 1 meter, and sectional area is 0.4m
2, the length L of receiving tube cell 2 is 12 meters, and height A 2 is 1 meter, and sectional area is 2.8 m
2To select the air velocity in the tube cell 1 be 2.5 meter per seconds said, and the air velocity of said receipts tube cell 2 is 0.35 meter per second.Air-flow wind speed in air-flow circulation line 7 and air-introduced machine 5 is 10 meter per seconds.
Select powder and receive in the powder device in that the utility model is described; The said movement velocity of air-flow in the tube cell 1 of selecting can be selected the arbitrary numerical value more than or equal to 2 meter per seconds, and the horizontal movement speed of air-flow can select to be less than or equal to arbitrary numerical value of 1 meter per second in the said receipts tube cell 2.
The utility model is described when selecting powder and receiving the powder device busy, and the air-flow that blower fan will have a movement velocity of certain air-flow is blown into and selects in the tube cell 1, powder constantly is filled into through the said charging aperture that selects tube cell 1 selects in the tube cell 1 simultaneously; At powder from the process of charging aperture landing downwards; Air-flow utilizes its motive force that powder is blown afloat, or utilizes motive force that powder is blown afloat along the guide effect of guide angle, and utilizes the difference of powders property and the difference of powder particles classification; Floating velocity is greater than the powder of air velocity; Under the effect of self gravitation, overcome the motive force of uprush and operation downwards realizes collecting in the said bottom of tube cell 1 of selecting; Floating velocity can overcome self gravitation and upwards operation less than the powder of air velocity under the promotion of uprush; The air-flow that carries powder then gets into to be received in the tube cell; In said receipts tube cell 2 since air-flow carries powder in the horizontal movement process ability well below air-flow in the vertical ability in motion process; And the speed of air-flow along continuous straight runs motion is well below vertical speed; Therefore the air-flow concentration of carrying powder after in the entering level is received tube cell will be carried the saturated concentration that powder moves in the horizontal direction considerably beyond air-flow, then when air-flow when level receipts tube cell moves, the powder that carries in the air-flow will constantly be separated from air-flow; To receiving tube cell 2 bottom sedimentations, realize separating of powder and air-flow.Powder after the sedimentation can be unified to collect after receiving the powder end after the sedimentation; Also can utilize aggregate bin 13 in the powder sedimentation, it to be collected in the aggregate bin, and powder discharged with receiving the powder device from selecting powder through the ash-valve that is connected with said aggregate bin.Powder after the discharge can be further be delivered to specified location through slag conveyer 16 with powder.
In said process; For selecting powder and receiving the powder device of guide angle is set, after selecting powder, the material that floating velocity is little is taken away the entering level by uprush and is received in the tube cell; The powder that floating velocity is big has then dropped on the inclined-plane of transiting slide plate section 10; And select tube cell 1 towards selecting tube cell to glide to fall into along the inclined-plane, and carrying out repeatedly selection by winnowing through a plurality of guide angles 9 then, the powder of last big particle diameter falls into and selects tube cell 1 to collect from the bottom.
Though the utility model has carried out detailed elaboration through above-mentioned specific embodiment to it; But; Those skilled in the art should be understood that; Any form of being made on this basis that does not exceed the claim protection domain and the variation of details all belong to the claimed scope of the utility model.
Claims (19)
1. one kind is selected powder and receives the powder device, it is characterized in that, comprises and selects tube cell (1) and receive tube cell (2), and on the said top of tube cell (1) of selecting charging aperture is set, the lower end is provided with discharging opening, and said tube cell (1) and the said receipts tube cell (2) of selecting is communicated with setting; The said tube cell (1) that selects favours the horizontal plane setting, and the angle between itself and the horizontal plane is more than or equal to 45 ° and smaller or equal to 90 °; Said receipts tube cell (2) is horizontally disposed with;
The said lower end of tube cell (1) of selecting is provided with air inlet (3), and said receipts tube cell (2) is away from being provided with air outlet (4) with a said end that selects tube cell (1) to be connected, and connects at said air outlet place air-introduced machine (5) is set.
2. powder and the receipts powder device of selecting according to claim 1 is characterized in that the said tube cell (1) that selects is perpendicular to the horizontal plane setting.
3. powder and the receipts powder device of selecting according to claim 1 and 2 is characterized in that said receipts tube cell (2) is connected with the said top of tube cell (1) of selecting, and the said top of tube cell (1) of selecting is sealed.
4. powder and the receipts powder device of selecting according to claim 3 is characterized in that said air-introduced machine (5) is connected with said air outlet (4) through sack cleaner (6).
5. powder and the receipts powder device of selecting according to claim 4; It is characterized in that; Extension is provided with air-flow circulation line (7) between said air outlet (4) and said sack cleaner (6), and said air-flow circulation line (7) is connected with said air inlet (3) through circulating fan (8).
6. powder and the receipts powder device of selecting according to claim 5 is characterized in that said air-flow circulation line (7) is connected with said air outlet (4).
7. according to claim 1 or 2 or 4 or 5 or 6 described powder and the receipts powder devices of selecting, it is characterized in that the said longitudinal section of tube cell (1) and said receipts tube cell (2) of selecting is rectangular.
8. powder and the receipts powder device of selecting according to claim 7 is characterized in that the sectional area of said receipts tube cell (2) is several times as much as the said sectional area that selects tube cell (1); And saidly select the air velocity in the tube cell (1) to be several times as much as the air velocity in the said receipts tube cell (2).
9. powder and the receipts powder device of selecting according to claim 8 is characterized in that the sectional area of said receipts tube cell (2) is greater than said 2-5 times of selecting tube cell (1) sectional area.
10. powder and the receipts powder device of selecting according to claim 9 is characterized in that the sectional area of said receipts tube cell (2) is greater than said 5 times of selecting tube cell (1) sectional area.
11. describedly select powder and receive the powder devices, it is characterized in that the length of said receipts tube cell (2) is more than or equal to 5 times of the said height that selects tube cell (1) bottom to said connection place according to claim 1 or 2 or 4 or 5 or 8 or 9 or 10.
12. powder and the receipts powder device of selecting according to claim 11 is characterized in that the said movement velocity of selecting air-flow in the tube cell (1) is more than or equal to 2 meter per seconds; The horizontal movement speed of air-flow is less than or equal to 1 meter per second in the said receipts tube cell (2).
13. according to claim 1 or 2 or 4 or 5 or 8 or 9 or 10 or 12 described powder and the receipts powder devices of selecting; It is characterized in that; On the said inwall that selects tube cell (1), be staggeredly equipped with one or more guide angles (9), said guide angle tilts towards the direction away from said air inlet towards a side of said air inlet.
14. powder and the receipts powder device of selecting according to claim 13 is characterized in that adjacent both sides parallel between the adjacent said guide angle, said guide angle is triangular in shape.
15. according to claim 1 or 2 or 4 or 5 or 8 or 9 or 10 or 12 or 14 described powder and the receipts powder devices of selecting; It is characterized in that; Select connection place of tube cell (1) and said receipts tube cell (2) to be formed with transiting slide plate section (10) said; Said transiting slide plate section (10) top is inclined-plane (11), and said inclined-plane (11) are from extremely rising gradually near said receipts tube cell (2) one ends near said tube cell (1) one end that selects; Have between the last inwall of the top of said transiting slide plate section (10) and said receipts tube cell (2) and be suitable for said air-flow and carry the mobile spacing that powder passes through.
16. powder and the receipts powder device of selecting according to claim 15; It is characterized in that; In said at least one or a plurality of guide angle; Have at least a guide angle to be arranged on said the choosing on tube cell (1) sidewall relative, and a side and the vertical range said inclined-plane between of said guide angle towards said inclined-plane equal said mobile spacing with inclined-plane, said transiting slide plate section top.
17. according to claim 16ly select powder and receive the powder device, it is characterized in that be provided with baffle plate at the said last inwall that selects connection place of tube cell (1) and said receipts tube cell (2) and be positioned at said receipts tube cell (2), said baffle plate is parallel with said inclined-plane (11).
18. according to claim 1 or 2 or 4 or 5 or 8 or 9 or 10 or 12 or 14 or 16 or 17 described powder and the receipts powder devices of selecting; It is characterized in that; Flow direction along said air-flow; In said receipts tube cell (2) bottom one or more aggregate bins (13) are set, said aggregate bin (13) is connected with said receipts tube cell (2); Said aggregate bin (13) bottom is provided with second ash-valve (15) that is used to seal powder.
19. powder and the receipts powder device of selecting according to claim 18; It is characterized in that; Be connected with first ash-valve (14) in the said bottom of tube cell (1) of selecting, said first ash-valve (14) is connected with slag conveyer respectively with said second ash-valve (15) to be carried powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203540747U CN202343454U (en) | 2011-09-21 | 2011-09-21 | Power selecting and collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203540747U CN202343454U (en) | 2011-09-21 | 2011-09-21 | Power selecting and collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343454U true CN202343454U (en) | 2012-07-25 |
Family
ID=46532480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203540747U Expired - Lifetime CN202343454U (en) | 2011-09-21 | 2011-09-21 | Power selecting and collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343454U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366745A (en) * | 2011-09-21 | 2012-03-07 | 卓卫民 | Powder selecting and collecting device |
| CN102728551A (en) * | 2012-06-29 | 2012-10-17 | 卓卫民 | Powder selection and collection device |
| CN102976102A (en) * | 2012-09-25 | 2013-03-20 | 江苏大学 | Pebble coal feeding device with separation function |
| KR102296235B1 (en) * | 2021-04-22 | 2021-08-31 | 주식회사 삼공사 | Thin Disc Stack Centrifugal Oil Mist Separator |
-
2011
- 2011-09-21 CN CN2011203540747U patent/CN202343454U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366745A (en) * | 2011-09-21 | 2012-03-07 | 卓卫民 | Powder selecting and collecting device |
| CN102366745B (en) * | 2011-09-21 | 2015-03-11 | 卓卫民 | Powder selecting and collecting device |
| CN102728551A (en) * | 2012-06-29 | 2012-10-17 | 卓卫民 | Powder selection and collection device |
| CN102728551B (en) * | 2012-06-29 | 2015-05-13 | 卓卫民 | Powder selection and collection device |
| CN102976102A (en) * | 2012-09-25 | 2013-03-20 | 江苏大学 | Pebble coal feeding device with separation function |
| CN102976102B (en) * | 2012-09-25 | 2016-04-06 | 江苏大学 | A kind of pebble coal feeding device with separation function |
| KR102296235B1 (en) * | 2021-04-22 | 2021-08-31 | 주식회사 삼공사 | Thin Disc Stack Centrifugal Oil Mist Separator |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20120725 |