CN104208936A - High speed air flow dehydration method and device - Google Patents
High speed air flow dehydration method and device Download PDFInfo
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- CN104208936A CN104208936A CN201410495775.0A CN201410495775A CN104208936A CN 104208936 A CN104208936 A CN 104208936A CN 201410495775 A CN201410495775 A CN 201410495775A CN 104208936 A CN104208936 A CN 104208936A
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Abstract
The invention discloses a high speed air flow dehydration method and device. A dehydration method includes that slurry to be dehydrated is subjected to preliminary dehydration through filtering cloth to form a filter cake or a slurry layer, and then compressed air penetrates the filtering cloth and breaks through the filter cake or the slurry layer in the filtering cloth to form a high speed air flow channel; when the high speed air flow passes through the filter cake or the slurry layer, interstitial water in the filter cake or the slurry layer is atomized and brought out with the high speed water flow, and the aim of dehydration is achieved. A high speed air flow dehydration device is further provided. The device comprises a left beam plate and a right beam plate which are arranged oppositely. The left beam plate is fixedly arranged, the right beam plate can move leftwards and rightwards along a guide rail or a guide rod in a sliding mode under the drive of external force, and air molds and material molds capable of forming a closed filter chamber are arranged alternatively between the left beam plate and the right beam plate. The method and device has the advantages of saving energy, protecting environment and being high in dehydration rate and wide in application range.
Description
Technical field
The present invention relates to de-watering of slurries field, particularly relate to a kind of high velocity air dewatering and device.
Background technology
Traditional slurry (as mud) dehydration technique has filter-press dehydration, negative pressure filtration dewaters, centrifugal dehydration, the modes such as belt filter press, these dehydration techniques are after all to being dependence extrusion dehydration, in any case but extruding, material always has gap, and these gaps will Zang Shui, the attached water (being also free water) of Here it is sludge filter cake, all conventional arts are to after slurry dewatering, and filter cake moisture content is still very high, makes troubles to the subsequent treatment of filter cake.
Traditional diaphragm filter press, it enters the squeezing stage after charging terminates, and at this moment also can form larger pressure reduction filter cake two, but it is under barrier film effect, air pressure can only play the effect of squeezing, and can not penetrate filter cake, cannot obtain the effect of this technology.
The vacuum dewatering apparatus of conventional art also has air-flow to pass through at (comprising vacuum belt, vacuum drum, pre-on-hook), but the pressure reduction that it is formed in filter cake both sides is very little, because it realizes pressure reduction by vacuumizing, be generally the pressure reduction that can only reach 0.02-0.06 MPa, even if perfect vacuum, also can only reach the pressure reduction of 0.1 MPa, under resistance of filter cake effect, cannot form high velocity air, the mud larger to particle diameter has certain effect, but the mud less to particle diameter does not act on substantially.
Summary of the invention
For above-mentioned technical problem, the present invention is intended to solve the problems of the technologies described above at least to a certain extent, provides a kind of high velocity air dewater unit and method.
The present invention realizes one of at least by following technical solution.
A kind of high velocity air dewatering, slurry to be drained off is formed after filter cake or pulp layer through filter cloth preliminary hydro-extraction, adopt compressed air through filter cloth, and the filter cake punctured in filter cloth or pulp layer, form high velocity air passage, when high velocity air is by filter cake or pulp layer, the Interstitial Water in filter cake or pulp layer will be made to be atomized and to take out of with high velocity air, thus reach the object of dehydration.
A kind of high velocity air dewater unit, comprise the left beam slab and right beam slab that are oppositely arranged, described left beam slab is fixedly installed, described right beam slab moves left and right along guide rail or guide rod slidably under external force drives, it is characterized in that: between described left beam slab and right beam slab, be alternately disposed with the gas mould and material mould that can form and close filter chamber
The input of described material mould connects the feed pipe injecting slurry to be drained off in filter chamber, and output connects discharges filter chamber to form the material mould drainpipe of filter cake by the moisture content of slurry to be drained off;
The input of described gas mould connects the air inlet pipe injecting Compressed Gas in filter chamber, and output connects the gas mould drainpipe for discharging drainage in filter chamber, and described Compressed Gas forms high velocity air and is atomized by moisture content in filter cake and takes out of after puncturing filter cake.
Further, described material mould comprises material mould filter plate, middle part has the material mould filter cloth of charging aperture, described material mould filter plate top is provided with the feeding-passage connecting feed pipe, bottom is provided with the material mould drainage channel of binder mould drainpipe, in two sides of described material mould, at least one is provided with material mould material containing part, described material mould material containing part surface uniform is interval with multiple guiding gutter, the bottom of each guiding gutter is equipped with connecting hole, described material mould filter cloth covers material mould material containing part surface, material mould water row passage extends internally from material mould filter plate edge and is communicated with connecting hole, described feeding-passage extends internally from material mould filter plate edge and to be communicated with charging aperture.
Further, be also provided with punched-plate between the guiding gutter on described material mould material containing part surface and material mould filter cloth, described punched-plate is evenly distributed with multiple hole.
Further, described gas mould comprises gas mould filter plate, gas mould filter cloth, described gas mould filter plate top is provided with the inlet channel connecting air inlet pipe, bottom is provided with the gas mould drainage channel connecting gas mould drainpipe, in two sides of described gas mould filter plate, at least one is provided with gas mould material containing part, described gas mould material containing part surface uniform is interval with multiple guiding gutter, the bottom of each guiding gutter is equipped with connecting hole, described gas mould filter cloth covers gas mould material containing part surface, and described inlet channel, gas mould drainage channel extend internally from gas mould filter plate edge and are communicated with connecting hole respectively.
Further, be also provided with punched-plate between the guiding gutter on described gas mould material containing part surface and gas mould filter cloth, described punched-plate is evenly distributed with multiple hole.
Further, described guiding gutter is concentric circles distribution, the distribution of straight parallel wire or net distribution.
Further, the charging aperture place of described material mould filter cloth is provided with ring-type filter cloth pressing plate material mould filter cloth being fixed on material mould material containing part surface, and on described gas mould filter cloth, the position of relative ring-type filter cloth pressing plate is provided with the cover plate that can cover charging aperture.
Adopt above-mentioned device to carry out a method for high velocity air dehydration, comprise the steps:
(1) matched moulds, right beam slab, under external force drives, promotes gas mould and expects that mould fits tightly to realize matched moulds, make adjacent material mould material containing part gentle mould material containing part form closed filter chamber;
(2) pressure dehydration, slurry is pumped into each filter chamber from feed pipe and feeding-passage, and under the effect of feed pressure, the part water in slurry to be drained off is after filter cloth leaches, discharge filter chamber through gas mould drainpipe, material mould drainpipe respectively, remainder is trapped within filter chamber and forms filter cake;
(3) high velocity air dehydration, after pressure dehydration is maintained to setting-up time, hold one's breath mould drainpipe and feed pipe 3 in pass, open air inlet pipe, input compressed-air in gas mould, filter cake is punctured again after described compressed air sweep gas mould filter cloth, air-flow forms tiny passage after puncturing filter cake, when air-flow flows fast through in the passage that these are tiny, high velocity air makes the residual gap water atomization in filter cake and takes out of with air-flow, finally make with moisture content compressed air through after material mould filter cloth through guiding gutter, material mould drainage channel and material mould drainpipe are discharged outside filter chamber, realize the further dehydration of filter cake,
(4) demoulding and discharging, closes air inlet pipe, and right beam slab, under external force drives, after pulling gas mould and material mould to depart from, is laid down the dry cake in filter chamber, completed dehydration.
Further, described compressed-air actuated pressure values is 0.2MPa ~ 2MPa.
Compared with prior art, tool of the present invention has the following advantages and technique effect: the method implementing high velocity air provided by the invention dehydration, by inputting high pressure draught toward gas mould, filter cake two is made to form the pressure reduction of 0.2MPa ~ 2MPa, utilize the dispersed effect of filter cloth and the inhibition of filter cake simultaneously, the high pressure draught of this large pressure reduction is allowed in filter cake, to form tiny passage through filter cloth and to flow through at a high speed, be atomized and take away the Interstitial Water in filter cake, take away the moisture content in filter cake, reduce moisture content, from the mummification realizing filter cake, the moisture content in filter cake particulate interspaces is trapped in during further discharge filter cake press filtration, and, compared with traditional membrane pressure filter, hydraulic pressure value required when the force value of high pressure draught needed for the present embodiment extrudes much smaller than barrier film, dehydrating effect is good, applicability is wide, energy-conservation, environmental protection, easy enforcement.The apparatus structure design provided is ingenious, easy to operate.
Accompanying drawing explanation
Fig. 1 is the high velocity air dewater unit structural representation of the embodiment of the present invention one.
Structural representation when Fig. 2 is the high velocity air dewater unit matched moulds of the embodiment of the present invention one.
Structural representation when Fig. 3 is the high velocity air dewater unit dehydration of the embodiment of the present invention one.
Fig. 4 is the material mode structure schematic diagram of the embodiment of the present invention one.
Fig. 5 is the gas mode structure schematic diagram of the embodiment of the present invention one.
Fig. 6 is the high velocity air dewater unit structural representation of the embodiment of the present invention two.
Structural representation when Fig. 7 is the high velocity air dewater unit matched moulds of the embodiment of the present invention two.
Structural representation when Fig. 8 is the high velocity air dewater unit dehydration of the embodiment of the present invention two.
Fig. 9 is another kind of material mode structure schematic diagram in the embodiment of the present invention two.
Figure 10 is the high velocity air dewater unit structural representation of the embodiment of the present invention three.
Figure 11 is the gas mode structure schematic diagram of the embodiment of the present invention three.
Figure 12 is the high velocity air dewater unit structural representation of the embodiment of the present invention four.
In figure: the left beam slab of 1-; 2-air inlet pipe; 3-feed pipe; The right beam slab of 4-; 5-expects mould; 6-gas mould drainpipe; 7-expects mould drainpipe; 8-gas mould; 9-filter chamber; 10-filter cake; ; 11-feeding-passage; 12-expects mould filter cloth; 13-expects mould material containing part; 14-punched-plate; 15-charging aperture; 16-ring-type filter cloth pressing plate; 17-expects mould drainage channel; 18-expects mould filter plate; 19-guiding gutter; 20-connecting hole; 21-inlet channel; 22-gas mould filter cloth; 23-cover plate; 24-gas mould material containing part; 25-gas mould filter plate; 26-gas mould drainage channel.
Detailed description of the invention
Be described in further detail goal of the invention of the present invention below in conjunction with the drawings and specific embodiments, embodiment can not repeat one by one at this, but therefore embodiments of the present invention are not defined in following examples.
embodiment one
As shown in Fig. 1 to 5, a kind of high velocity air dewater unit, comprise the left beam slab 1 and right beam slab 4 that are oppositely arranged, described left beam slab 1 is fixedly installed, described right beam slab 4 moves left and right along guide rail or guide rod slidably under external force drives, the gas mould 8 and material mould 5 that can form and close filter chamber 9 is alternately disposed with between described left beam slab 1 and right beam slab 4
The input of described material mould 5 connects the feed pipe 3 injecting slurry to be drained off in filter chamber 9, and output connects discharges filter chamber 9 to form the material mould drainpipe 7 of filter cake 10 by the moisture content of slurry to be drained off;
The input of described gas mould 8 connects the air inlet pipe 2 injecting Compressed Gas in filter chamber 9, and output connects the gas mould drainpipe 6 for discharging drainage in filter chamber 9, forms high velocity air moisture content in filter cake 10 is atomized and is taken out of after described Compressed Gas punctures filter cake 10.
Particularly, the present embodiment comprises 2 the material moulds 5 and 1 gas mould 8 that are alternately arranged and arrange, described material mould 5 comprises material mould filter plate 18, middle part has the material mould filter cloth 12 of charging aperture 15, described material mould filter plate 18 top is provided with the feeding-passage 11 connecting feed pipe 3, bottom is provided with the material mould drainage channel 17 of binder mould drainpipe 7, one is only had to be provided with material mould material containing part 13 in two sides of described material mould 5, described material mould material containing part 13 surface uniform is interval with multiple distribution in concentric circles, the distribution of straight parallel wire or net distribution guiding gutter 19, the present embodiment is concentric circles distribution, the bottom of each guiding gutter 19 is equipped with connecting hole 20, described material mould filter cloth 12 covers material mould material containing part 13 surface, material mould water row passage 17 extends internally from material mould filter plate 18 edge and is communicated with connecting hole 20, described feeding-passage 11 extends internally from material mould filter plate 18 edge and to be communicated with charging aperture 15.
Further, be also provided with punched-plate 14 between the guiding gutter 19 on described material mould material containing part 13 surface and material mould filter cloth 12, described punched-plate 14 is evenly distributed with multiple hole.
Further, described gas mould 8 is arranged between two material moulds 5, comprise gas mould filter plate 25, gas mould filter cloth 22, described gas mould filter plate 25 top is provided with the inlet channel 21 connecting air inlet pipe 2, bottom is provided with the gas mould drainage channel 26 connecting gas mould drainpipe 6, two sides of described gas mould filter plate 25 are equipped with gas mould material containing part 24, described gas mould material containing part 24 surface uniform is interval with multiple distribution in concentric circles, the distribution of straight parallel wire or net distribution guiding gutter 19, the present embodiment is concentric circles distribution, guiding gutter 19, the bottom of each guiding gutter 19 is equipped with connecting hole 20, described gas mould filter cloth 22 covers gas mould material containing part 24 surface, described inlet channel 21, gas mould drainage channel 26 extends internally from gas mould filter plate 25 edge and is communicated with connecting hole 20 respectively.
Further, be also provided with punched-plate 14 between the guiding gutter 19 on described gas mould material containing part 24 surface and gas mould filter cloth 22, described punched-plate 14 is evenly distributed with multiple hole; Punched-plate 14 is also provided with between the guiding gutter 19 on described material mould material containing part 13 surface and material mould filter cloth 12, described punched-plate 14 is evenly distributed with multiple hole, guiding gutter 19 and punched-plate 14, Area of bearing to filter cloth when effectively increasing dewatering operation, be uniformly distributed pressure, destruction to filter cloth under minimizing hyperbaric environment, extends the service life of filter cloth.
Further, charging aperture 15 place of described material mould filter cloth 12 is provided with the ring-type filter cloth pressing plate 16 material mould filter cloth 12 being fixed on material mould material containing part 13 surface, on described gas mould filter cloth 22, the position of relative ring-type filter cloth pressing plate 16 is provided with the cover plate 23 that can cover charging aperture 15, the material mould filter cloth 12 of the present embodiment adopts general filter cloth, the effect mainly fixing material mould filter cloth 12 of ring-type filter cloth pressing plate 16, prevent mud in charging aperture 15 place seepage, simultaneously, feeding-passage 11 is connected with feed pipe 2 by flexible pipe, and material mould drainage channel 17 is connected with material mould drainpipe 7 by flexible pipe; Gas mould filter cloth 22 is also general filter cloth, the effect of cover plate 23 fixing on material mould filter cloth 12 is mainly under gas pressure, cover charging aperture 15, prevent from mud from flowing backwards from the feeding-passage 11 of material mould 5 to go back, inlet channel 21 is connected with air inlet pipe 2 by flexible pipe, and gas mould drainage channel 26 is connected with gas mould drainpipe 6 by flexible pipe.
As shown in Figure 2, filter chamber 9 is formed after adjacent gas mould 8 and material mould 5 matched moulds, mud is through feed pipe 3, feeding-passage 11 pumps in filter chamber 9, under utilizing mud pressure itself and filter cloth effect, by moisture content through material mould drainage channel 17, gas mould drainage channel 26 discharges filter chamber 9, realize filtering first, then through air inlet pipe 2 and inlet channel 21 to input compressed-air in gas mould 8, compressed air forms high pressure draught and punctures filter cake 10 through after gas mould filter cloth 22, after being atomized by residual moisture content interior in filter cake 10 gap, band discharging mode drainage channel 17 is collected to the rear discharge of material mould drainpipe 7, realize the further dehydration (see Fig. 3) of filter cake 10.
embodiment two
As shown in Fig. 6 to 9, a kind of high velocity air dewater unit, comprise the left beam slab 1 and right beam slab 4 that are oppositely arranged, described left beam slab 1 is fixedly installed, described right beam slab 4 moves left and right along guide rail or guide rod slidably under external force drives, the gas mould 8 and material mould 5 that can form and close filter chamber 9 is alternately disposed with between described left beam slab 1 and right beam slab 4
The input of described material mould 5 connects the feed pipe 3 injecting slurry to be drained off in filter chamber 9, and output connects discharges filter chamber 9 to form the material mould drainpipe 7 of filter cake 10 by the moisture content of slurry to be drained off;
The input of described gas mould 8 connects the air inlet pipe 2 injecting Compressed Gas in filter chamber 9, and output connects the gas mould drainpipe 6 for discharging drainage in filter chamber 9, forms high velocity air moisture content in filter cake 10 is atomized and is taken out of after described Compressed Gas punctures filter cake 10.
Particularly, the present embodiment comprises four the material moulds 5 and three gas moulds 8 that are alternately arranged and arrange, described material mould 5 comprises material mould filter plate 18, middle part has the material mould filter cloth 12 of charging aperture 15, described material mould filter plate 18 top is provided with the feeding-passage 11 connecting feed pipe 3, bottom is provided with the material mould drainage channel 17 of binder mould drainpipe 7, wherein, two sides being arranged in the material mould filter plate 18 of the leftmost side and the rightmost side all only have one to be provided with material mould material containing part 13, two sides of all the other 2 material mould filter plates 18 are equipped with material mould material containing part 13, described material mould material containing part 13 surface uniform is interval with multiple distribution in concentric circles, the distribution of straight parallel wire or net distribution guiding gutter 19, the present embodiment is concentric circles distribution, the bottom of each guiding gutter 19 is equipped with connecting hole 20, described material mould filter cloth 12 covers material mould material containing part 13 surface, material mould water row passage 17 extends internally from material mould filter plate 18 edge and is communicated with connecting hole 20, described feeding-passage 11 extends internally from material mould filter plate 18 edge and to be communicated with charging aperture 15.
Further, be also provided with punched-plate 14 between the guiding gutter 19 on described material mould material containing part 13 surface and material mould filter cloth 12, described punched-plate 14 is evenly distributed with multiple hole.
Described gas mould 8 is arranged between material mould 5, comprise gas mould filter plate 25, gas mould filter cloth 22, described gas mould filter plate 25 top is provided with the inlet channel 21 connecting air inlet pipe 2, bottom is provided with the gas mould drainage channel 26 connecting gas mould drainpipe 6, two sides of described gas mould filter plate 25 are equipped with gas mould material containing part 24, described gas mould material containing part 24 surface uniform is interval with multiple distribution in concentric circles, the distribution of straight parallel wire or net distribution guiding gutter 19, the present embodiment is concentric circles distribution, guiding gutter 19, the bottom of each guiding gutter 19 is equipped with connecting hole 20, described gas mould filter cloth 22 covers gas mould material containing part 24 surface, described inlet channel 21, gas mould drainage channel 26 extends internally from gas mould filter plate 25 edge and is communicated with connecting hole 20 respectively.
Further, be also provided with punched-plate 14 between the guiding gutter 19 on described gas mould material containing part 24 surface and gas mould filter cloth 22, described punched-plate 14 is evenly distributed with multiple hole; Punched-plate 14 is also provided with between the guiding gutter 19 on described material mould material containing part 13 surface and material mould filter cloth 12, described punched-plate 14 is evenly distributed with multiple hole, guiding gutter 19 and punched-plate 14, Area of bearing to filter cloth when effectively increasing dewatering operation, be uniformly distributed pressure, destruction to filter cloth under minimizing hyperbaric environment, extends the service life of filter cloth.
Further, charging aperture 15 place of described material mould filter cloth 12 is provided with the ring-type filter cloth pressing plate 16 material mould filter cloth 12 being fixed on material mould material containing part 13 surface, on described gas mould filter cloth 22, the position of relative ring-type filter cloth pressing plate 16 is provided with the cover plate 23 that can cover charging aperture 15, the material mould filter cloth 12 of the present embodiment adopts general filter cloth, the effect mainly fixing material mould filter cloth 12 of ring-type filter cloth pressing plate 16, prevent mud in charging aperture 15 place seepage, simultaneously, feeding-passage 11 is connected with feed pipe 2 by flexible pipe, and material mould drainage channel 17 is connected with material mould drainpipe 7 by flexible pipe; Gas mould filter cloth 22 is also general filter cloth, the effect of cover plate 23 fixing on material mould filter cloth 12 is mainly under gas pressure, cover charging aperture 15, prevent from mud from flowing backwards from the feeding-passage 11 of material mould 5 to go back, inlet channel 21 is connected with air inlet pipe 2 by flexible pipe, and gas mould drainage channel 26 is connected with gas mould drainpipe 6 by flexible pipe.
As shown in Figure 7, 6 filter chambers 9 are formed after gas mould 8 and material mould 5 matched moulds, mud is through feed pipe 3, feeding-passage 11 pumps in filter chamber 9, under utilizing mud pressure itself and filter cloth effect, by moisture content through material mould drainage channel 17, gas mould drainage channel 26 discharges filter chamber 9, realize filtering first, then through air inlet pipe 2 and inlet channel 21 to input compressed-air in gas mould 8, compressed air forms high pressure draught and punctures filter cake 10 through after gas mould filter cloth 22, after being atomized by residual moisture content interior in filter cake 10 gap, band discharging mode drainage channel 17 is collected to the rear discharge of material mould drainpipe 7, realize the further dehydration (see Fig. 8) of filter cake 10, the present embodiment achieves the operation simultaneously of multiple filter chamber 9, greatly improve efficiency, save operating cost.
embodiment three
As shown in Figure 10 to Figure 11, the difference of the present embodiment and embodiment one is: the present embodiment comprises of arranging of being alternately arranged and expects mould 5 and two gas moulds 8, described material mould 5 is arranged between two gas moulds 8, in two sides of described gas mould filter plate 25 only one be provided with gas mould material containing part 24, two sides of described material mould filter plate 18 are provided with material mould material containing part 13.
embodiment four
As shown in figure 12, the difference of the present embodiment and embodiment two is: the present embodiment comprises three of arranging of being alternately arranged and expects mould 5 and four gas moulds 8, wherein, two sides being arranged in two gas mould filter plates 25 of the leftmost side and the rightmost side all only have one to be provided with gas mould material containing part 24, two sides of all the other two gas mould filter plates 25 are equipped with gas mould material containing part 24, described material mould 5 is arranged between gas mould 8, and two sides of its material mould filter plate 18 are equipped with material mould material containing part 13.
embodiment five
A method for high velocity air dehydration, comprises step:
Step 1, matched moulds, right beam slab 4, under external force drives, promotes gas mould 8 and expects that mould 5 fits tightly to realize matched moulds, make the gentle mould material containing part 24 of adjacent material mould material containing part 13 form the filter chamber 9 closed;
Step 2, pressure dewater, mud is pumped into each filter chamber 9 from feed pipe 3 and feeding-passage 11, and under the effect of feed pressure, the water in mud is after filter cloth leaches, discharge filter chamber 7 through gas mould drainpipe 6, material mould drainpipe 7 respectively, remainder is trapped within filter chamber 9 and forms filter cake 10;
Step 3, high velocity air dewaters, after pressure dehydration is maintained to setting-up time, hold one's breath mould drainpipe 6 and feed pipe 3 in pass, open air inlet pipe 2, input compressed-air in gas mould 8, filter cake 10 is punctured again after described compressed air sweep gas mould filter cloth 22, air-flow forms tiny passage after puncturing filter cake 10, when air-flow flows fast through in the passage that these are tiny, high velocity air makes the residual gap water atomization of filter cake 10 li and takes out of with air-flow, finally make with moisture content compressed air through after material mould filter cloth 12 through guiding gutter 19, material mould drainage channel 17 and material mould drainpipe 7 are discharged outside filter chamber 9, realize the further dehydration of filter cake 10,
Step 4, the demoulding and discharging, close air inlet pipe 2, and right beam slab 4, under external force drives, after pulling gas mould 8 and material mould 5 to depart from, is laid down the dry cake 10 in filter chamber 9, completed dehydration.
When other Parameter Conditions is identical, after described in the method his-and-hers watches 1 of employing shown in the present embodiment, slurry carries out processed, the filter cake moisture content obtained with existing filter-pressing method (diaphragm filter press) contrasts as shown in table 1.
Table 1
Through contrast, the filter cake that the method that the high velocity air adopting the present embodiment to provide dewaters obtains after dewatering, the filter cake obtained after comparing the press filtration of system technology, its moisture content decreases by about 50%, significantly improve the degree of drying of filter cake, simplify subsequent treatment to filter cake, energy-saving and environmental protection, efficient.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (10)
1. a high velocity air dewatering, it is characterized in that slurry to be drained off is formed after filter cake or pulp layer through filter cloth preliminary hydro-extraction, adopt compressed air through filter cloth, and the filter cake punctured in filter cloth or pulp layer, form high velocity air passage, when high velocity air is by filter cake or pulp layer, the Interstitial Water in filter cake or pulp layer will be made to be atomized and to take out of with high velocity air, thus reach the object of dehydration.
2. realize a kind of high velocity air dewater unit of dewatering described in claim 1, comprise the left beam slab (1) and right beam slab (4) that are oppositely arranged, described left beam slab (1) is fixedly installed, described right beam slab (4) moves left and right along guide rail or guide rod slidably under external force drives, it is characterized in that: between described left beam slab (1) and right beam slab (4), be alternately disposed with the gas mould (8) and material mould (5) that can form and close filter chamber (9), the input of described material mould (5) connects the feed pipe (3) injecting slurry to be drained off in filter chamber (9), output connects discharges filter chamber (9) to form the material mould drainpipe (7) of filter cake (10) by the moisture content of slurry to be drained off, the input of described gas mould (8) connects the air inlet pipe 2 injecting Compressed Gas in filter chamber (9), output connects gas mould drainpipe (6) for discharging filter chamber (9) interior drainage, and described Compressed Gas punctures filter cake (10) and forms high velocity air afterwards filter cake (10) interior moisture content is atomized and is taken out of.
3. high velocity air dewater unit according to claim 2, it is characterized in that: described material mould (5) comprises material mould filter plate (18), middle part has the material mould filter cloth (12) of charging aperture (15), described material mould filter plate (18) top is provided with the feeding-passage (11) connecting feed pipe (3), bottom is provided with the material mould drainage channel (17) of binder mould drainpipe (7), in two sides of described material mould (5), at least one is provided with material mould material containing part (13), described material mould material containing part (13) surface uniform is interval with multiple guiding gutter (19), the bottom of each guiding gutter (19) is equipped with connecting hole (20), described material mould filter cloth (12) covers material mould material containing part (13) surface, material mould water row's passage (17) extends internally from material mould filter plate (18) edge and is communicated with connecting hole (20), described feeding-passage (11) extends internally from material mould filter plate (18) edge and to be communicated with charging aperture (15).
4. high velocity air dewater unit according to claim 3, it is characterized in that: be also provided with punched-plate (14) between the guiding gutter (19) on described material mould material containing part (13) surface and material mould filter cloth (12), (14) are evenly distributed with multiple hole with described punched-plate.
5. high velocity air dewater unit according to claim 2, it is characterized in that: described gas mould (8) comprises gas mould filter plate (25), gas mould filter cloth (22), described gas mould filter plate (25) top is provided with the inlet channel (21) connecting air inlet pipe (2), bottom is provided with the gas mould drainage channel (26) connecting gas mould drainpipe (6), in two sides of described gas mould filter plate (25), at least one is provided with gas mould material containing part (24), described gas mould material containing part (24) surface uniform is interval with multiple guiding gutter (19), the bottom of each guiding gutter (19) is equipped with connecting hole (20), described gas mould filter cloth (22) covers gas mould material containing part (24) surface, described inlet channel (21), gas mould drainage channel (26) extends internally from gas mould filter plate (25) edge respectively and is communicated with connecting hole (20).
6. high velocity air dewater unit according to claim 5, it is characterized in that: be also provided with punched-plate (14) between the guiding gutter (19) on described gas mould material containing part (24) surface and gas mould filter cloth (22), (14) are evenly distributed with multiple hole with described punched-plate.
7. the high velocity air dewater unit according to any one of claim 3 to 6, is characterized in that: described guiding gutter (19) distributes in concentric circles, straight parallel wire distributes or net distribution.
8. high velocity air dewater unit according to claim 7, it is characterized in that: charging aperture (15) place of described material mould filter cloth (12) is provided with the ring-type filter cloth pressing plate (16) material mould filter cloth (12) being fixed on material mould material containing part (13) surface, the position of the upper relative ring-type filter cloth pressing plate (16) of described gas mould filter cloth (22) is provided with the cover plate (23) that can cover charging aperture (15).
9. adopt the device described in any one of claim 2 to 8 to carry out a method for high velocity air dehydration, it is characterized in that, comprise the steps:
(1) matched moulds, right beam slab (4) is under external force drives, promote gas mould (8) and expect that mould (5) fits tightly to realize matched moulds, make the gentle mould material containing part (24) of adjacent material mould material containing part (13) form the filter chamber (9) closed;
(2) pressure dehydration, slurry is pumped into each filter chamber (9) from feed pipe (3) and feeding-passage (11), under the effect of feed pressure, part water in slurry to be drained off is after filter cloth leaches, discharge filter chamber (7) through gas mould drainpipe (6), material mould drainpipe (7) respectively, remainder is trapped within filter chamber (9) and forms filter cake (10);
(3) high velocity air dehydration, after pressure dehydration is maintained to setting-up time, hold one's breath mould drainpipe (6) and feed pipe (3) in pass, open air inlet pipe (2), input compressed-air in gas mould (8), filter cake (10) is punctured again after described compressed air sweep gas mould filter cloth (22), air-flow punctures filter cake (10) and forms tiny passage afterwards, when air-flow flows fast through in the passage that these are tiny, high velocity air makes the inner residual gap water atomization of filter cake (10) and takes out of with air-flow, finally make with moisture content compressed air through material mould filter cloth (12) by guiding gutter (19), material mould drainage channel (17) and material mould drainpipe (7) discharge filter chamber (9) outward, realize the further dehydration of filter cake (10),
(4) demoulding and discharging, close air inlet pipe (2), right beam slab (4) external force drive under, pull gas mould (8) and material mould (5) disengaging after, lay down the dry cake (10) in filter chamber (9), complete dehydration.
10. the method for high velocity air dehydration according to claim 9, is characterized in that: described compressed-air actuated pressure values is 0.2MPa ~ 2MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410495775.0A CN104208936B (en) | 2014-09-24 | 2014-09-24 | A kind of high velocity air dewatering and device |
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| CN201410495775.0A CN104208936B (en) | 2014-09-24 | 2014-09-24 | A kind of high velocity air dewatering and device |
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| CN104208936A true CN104208936A (en) | 2014-12-17 |
| CN104208936B CN104208936B (en) | 2015-10-28 |
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| CN201410495775.0A Ceased CN104208936B (en) | 2014-09-24 | 2014-09-24 | A kind of high velocity air dewatering and device |
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| Country | Link |
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| CN (1) | CN104208936B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217920A (en) * | 2015-09-29 | 2016-01-06 | 广东屹峰环保科技有限公司 | A kind of filter cake depth dewatering and device |
| CN107982973A (en) * | 2017-12-12 | 2018-05-04 | 核工业烟台同兴实业集团有限公司 | A kind of gas extruding drying filter |
| CN111549601A (en) * | 2020-04-30 | 2020-08-18 | 海灿(宁波)工程科技有限公司 | Rapid dehydration device and dehydration method for road subgrade filler by using over-wet soft soil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1269225A (en) * | 1999-03-25 | 2000-10-11 | 项观相 | Nevus eliminating ointment |
| CN1840221A (en) * | 2005-04-03 | 2006-10-04 | 张民良 | Sold liquid separation machine with flexible tubular frame and multiple utilization method thereof |
| CN204121845U (en) * | 2014-09-24 | 2015-01-28 | 辛后安 | A kind of high velocity air dewater unit |
-
2014
- 2014-09-24 CN CN201410495775.0A patent/CN104208936B/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1269225A (en) * | 1999-03-25 | 2000-10-11 | 项观相 | Nevus eliminating ointment |
| CN1840221A (en) * | 2005-04-03 | 2006-10-04 | 张民良 | Sold liquid separation machine with flexible tubular frame and multiple utilization method thereof |
| CN204121845U (en) * | 2014-09-24 | 2015-01-28 | 辛后安 | A kind of high velocity air dewater unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217920A (en) * | 2015-09-29 | 2016-01-06 | 广东屹峰环保科技有限公司 | A kind of filter cake depth dewatering and device |
| CN107982973A (en) * | 2017-12-12 | 2018-05-04 | 核工业烟台同兴实业集团有限公司 | A kind of gas extruding drying filter |
| CN107982973B (en) * | 2017-12-12 | 2020-07-24 | 核工业烟台同兴实业集团有限公司 | Gas extrusion drying filter |
| CN111549601A (en) * | 2020-04-30 | 2020-08-18 | 海灿(宁波)工程科技有限公司 | Rapid dehydration device and dehydration method for road subgrade filler by using over-wet soft soil |
| CN111549601B (en) * | 2020-04-30 | 2022-04-12 | 海灿(宁波)工程科技有限公司 | Rapid dehydration device and dehydration method for road subgrade filler by using over-wet soft soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104208936B (en) | 2015-10-28 |
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Effective date of registration: 20180403 Address after: Block south of Xiaoshan economic and Technological Development Zone Xiaoshan Hongxing Road District of Hangzhou City, Zhejiang province 311215 No. 117 Patentee after: HANGZHOU ANYONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 435002, Huangshi, Hubei Province, Huangshi Port District Shen Jiaying Yi electric One Village No. 8-8 Patentee before: Xin Houan |
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Decision date of declaring invalidation: 20200318 Decision number of declaring invalidation: 43630 Granted publication date: 20151028 |