CN2381372Y - Dewaterer for continuously solid-liquid separating with fine granulation - Google Patents

Abstract

The utility model relates to a dewaterer for continuously processing separation between solid and liquid with a thin grain size. In the utility model, a filter screen cylinder in which a screw transporting device is arranged in a cylindrical main cylinder, and the feeding end of a hollow shaft of the screw transporting device is communicated with a slurry transporting pipeline and an air pressing pipeline. The discharge end of the hollow shaft is communicated with an inverse air pipeline and an inverse water pipeline. Slurry and pressed air which respectively enter the hollow shaft are sprayed to the filter screen cylinder through liquid flowing holes. A filter cake is formed on the inner wall of the filter screen cylinder, and filtering water which penetrates through the filter screen cylinder is discharged through a water discharging opening. The screw transporting device transports the filter cake to a discharge opening, and the filter cake is discharged on the discharge opening. Inverse air and inverse water which respectively enter the discharge end of the hollow shaft are used for flushing the back of the filter screen cylinder. The utility model which conforms to the requirements of environmental protection has the advantages of continuous and reliable work, increased efficiency, simple structure, and low production cost.

Description

Handle superfine granularity solid-liquid separation dehydration machine continuously

The utility model belongs to solid-liquid separation dehydration equipment, is specially adapted to the filtering means dehydration of superfine particle ore pulp, mud.

At present, both at home and abroad to superfine particle ore pulp or sludge dewatering, generally adopt as the Coal Industry Press, publish in April, 1993, book number ISBN7～5020-0703-2/TD.847 " coal separation handbook technology and the described chamber filter press of equipment volume 635-641 page or leaf, for example: XMZ 500/1500 molding box formula filter press.This machine comprises the movable head plate, by the pressure oil oil cylinder, 137 filter plates, compresses to fixed tailgate, makes adjacent in twos filter plate, the hollow filter chamber of sealing around constituting.With this machine supporting feed coal slurry pump, coal slurry is pressed into the filter chamber of hollow, coal slurry is borrowed self pressure and the inside and outside differential pressure action that forms of filter medium filter cloth, realizes Separation of Solid and Liquid.Superfine solid particle forms filter cake in filter chamber, filtrate is flowed out along the groove on the filter plate through filter cloth, filter screen; Then, the oil circuit commutation by hydraulic system returns to original position with the movable head plate, starts and draws back device, and the filter plate that is placed on the girder is drawn back in succession, and filter cake borrows deadweight to come off on the belt conveyer that is installed in the bottom, reprints outward transport.In addition, follow-on chamber filter press has appearred again in recent years, for example: XMZG-40/800 van-type clean coal pressur filter, for traditional type filter press before remedying solution becomes the cake process because of the thorough problem of the long dehydration of pressure transmission line, in filter chamber, increased the diaphragm of rubber pressuring gasbag again, with further extruding filter cake moisture.To sum up, through industrial practice and laboratory test prove that chamber filter press is long because of the pressure transmission line, causes complex structure for many years, body is overweight, the manufacturing expenses height unloads the difficult control of cake, unhandy automatically, easy-maintaining not, the complexity that has increased machine again after the improvement and manufacturing expense and consumable accessory, the producing cost height, efficient is low.Under comparable situation, square metre filter area disposal ability during platform only is 0.149 ton.

Task of the present utility model provides a kind of circular filter net tube and places in the cylindrical enclosure storehouse, adds the filtering means dehydration device under the positive pressure.It had both easily reduced filter cake moisture about 19%, and a square metre filter area disposal ability reaches more than 0.382 ton in the time of improving platform by a relatively large margin again.

The technical solution of the utility model is as follows:

In cylindrical main tube 1, device filtering net cylinder 5, the hollow shaft 17 of establishing spiral conveying arrangement 22, the spiral conveying arrangement of automatic discharging in the filtering net cylinder is supported on the feeding end seal cover 9 of main tube end, the discharge end seal cover 11, the discharge end of hollow shaft is established the anti-gas multi-steering pipe 25 of turning one's coat, and the multitube ring flange 50 of turning one's coat of the anti-gas on this multi-steering pipe and anti-air pipe 61, the backwash pipeline 68 joins.Main tube bottom is established and is unloaded water valve 19; Main tube discharge end is established automatic discharge port 20.The hinge wheel 29 that connects firmly on hollow shaft joins with the motor 26 that drags the spiral conveying arrangement; Connect firmly at the gear wheel 32 on the main tube and be meshed with pinion 31 on the motor 30 that drags main tube.

Below in conjunction with accompanying drawing in detail, structure of the present utility model and embodiment are described in detail.

Fig. 1 represents to handle continuously the front section view of superfine granularity solid-liquid separation dehydration machine;

Fig. 2 presentation graphs 1 is along the cutaway view of A-A;

Fig. 3 represents the flow sheet of this dewaterer.

The dewaterer of representing as Fig. 1, Fig. 2, comprise cylindrical main tube 1, device filtering net cylinder 5 in main tube, the periphery of this net tube wraps the filter cloth 2 of stainless steel sieve grate 4, protecting wire net 3 and fine mesh, support with a muscle 6 between the outer wall of net tube and the inwall of main tube, and the axial seal 7 of filter cloth.Cylindrical main tube connects firmly feeding end ring flange 13 in the pan feeding end, and this ring flange and feeding end seal cover 9 are fastening with connector 14, establish semi-automatic sealing 10 betwixt, establishes end sealing 8 between feeding end seal cover and net tube; Main tube 1 connects firmly discharge end ring flange 12 in the discharging end, and this ring flange and discharge end seal cover 11 are fastening with connector 14, establish semi-automatic sealing 10 betwixt, still establishes the end between discharge end seal cover and net tin and seals 8.In filtering net cylinder 5, establish the spiral conveying arrangement 22 of automatic discharging, 17 of the hollow shafts of this conveying arrangement are on the axis of main tube, and be supported on the feeding end seal cover 9, discharge end seal cover 11 of main tube end, establish feeding end rolling bearing 38 between feeding end seal cover and hollow shaft; Establish discharge end rolling bearing 37 between discharge end seal cover and hollow shaft.Lay some liquid-through holes 18 on hollow shaft 17, the feeding end of hollow shaft is established pan feeding multi-steering pipe 16, and the pan feeding multitube ring flange 49 on this multi-steering pipe and pulp-entering pipe road 57, the pipeline 59 of calming the anger joins; The discharge end of hollow shaft is established the anti-gas multi-steering pipe 25 of turning one's coat, and the multitube ring flange 50 of turning one's coat of the anti-gas on this multi-steering pipe and anti-air pipe 61, the backwash pipeline 68 joins.Calm the anger and mix mutually with going into slurry for preventing that anti-gas from turning one's coat, in the hollow shaft at discharge end position, establish isolated plug 48.Establish blowback backwash passage 15 in discharge end seal cover 11, this passage communicates with hollow shaft.The bottom of cylindrical main tube is established and is unloaded water valve 19, aqueduct 62; Main tube 1 is established automatic discharge port 20 at discharge end, in order to discharge diffusing material, is then discharged by the Dump gate 24 that cylinder 23 is handled for sticking material, and is provided with washer jet 21.

The motor 26 that drags the spiral conveying arrangement joins with the hinge wheel 29 that connects firmly at hollow shaft by minor sprocket 27, chain 28; For ease of handling the difference that various materials become the cake attribute, need main tube 1 to slowly run, establish the motor 30 that drags cylindrical main tube and be meshed with the gear wheel 32 that connects firmly on main tube by pinion 31.For making complete machine stable working and safety, establish powerful the support at the both ends of hollow shaft, promptly establish the powerful support 34 of feeding end at feeding end, this supports and hollow shaft contact position dress rolling bearing 36; Establish the powerful support 33 of discharge end at discharge end, this supports and hollow shaft contact position dress rolling bearing 35; The powerful support of feeding end, the powerful support all of discharge end are connected with the basis with spring washer 46 and nut 47 with bolt 45.It is to establish the big crimp 40 of feeding end at cylindrical main tube feeding end that the middle part of complete machine is supported, and this big crimp contacts with little supporting roll 42; Establish the big crimp 39 of discharge end at discharge end, this big crimp contacts with little supporting roll 41, for preventing main tube axial motion, is provided with at the big crimp of discharge end place to prevent going here and there moving and rolls 43,44.

The action of this dewaterer of representing as Fig. 3 is integrated 69 remote controls of " SBIC " industrial computer standard.Make feed bin valve 56 open, the slurry in slurry storehouse 55 enters slurry pipeline 57, start 0.5 MPa mashing pump 51, make feed valve 58 open slurry through pan feeding multitube ring flange 49, pan feeding multi-steering pipe 16 enters hollow shaft 17, and by some liquid-through holes 18, slurry is sprayed to the inwall of filtering net cylinder 5, slurry is under positive pressure through filter cloth 2 isolated by filtration at this moment, and the solid particle that generally is not less than 0.03 millimeter forms filter cake in filter cloth, and the clear water that leaches flows to outside the filter cloth; For further reducing filter cake moisture, order stops 0.5 MPa mashing pump, start 1 MPa air compressor 52, open pressure valve 53, calming the anger enters the pipeline 59 of calming the anger, and enters hollow shaft 17 through pan feeding multitube ring flange 49, pan feeding multi-steering pipe 16, and will calm the anger by some liquid-through holes 18 sprays to filter cake on the filtering net cylinder, make its further dehydration, generally make filter cake moisture reduce to 19%.This seasonal air compressor stops, and the occlusion pressure air valve starts the motor 26 drag the spiral conveying arrangement simultaneously, makes spiral generally with 3 rev/mins slowly run, and makes the filter cake material be discharged to belt conveyer 60 through the automatic discharge port 20 of discharge end, is transported to and reclaims the place.Make motor 26 stop, start air compressor 52, make the washer jet 21 of calming the anger blow discharge port 20, make its tight closing.Close pressure valve 53, open anti-air valve 54, make and calm the anger through anti-air pipe 61, anti-gas multitube ring flange 50, the anti-gas multi-steering pipe 25 of turning one's coat of turning one's coat to the back side of blowback backwash passage 15 blowback filtering net cylinders 5, so as to blowing off filter cloth 2, guarantees the filtration of next work period.When forming gradually with filter cloth 2 filter cakes, the outer filtrate of filter cloth is also flowed out gradually, makes standard-sized sheet unload water valve 19, and filtrate flow to clear water reserviors 63 through aqueduct 62, uses for the water of turning one's coat.Said turning one's coat is to adopt when needs water cleaning and filtering net tube.Promptly start clarified water pump 64, open pump valve 65 and the valve 67 of turning one's coat, turning one's coat enters backwash pipeline 68, and through anti-gas multitube ring flange 50, the anti-gas multi-steering pipe 25 of turning one's coat of turning one's coat, anti-gas backwash passage 15 to the back side of filtering net cylinder 5, is cleaned filter cloth 2.Unnecessary water in the clear water reserviors can start clarified water pump, opens purge valve 66 and effluxes multiplexing.So far, a work period of unit finishes, and in the work period of aforementioned unit, second dewaterer interts simultaneously and carry out as opposite with the front platform computer operation, promptly constitutes the two-shipper intersection and works continuously.

Advantage of the present utility model: compare this dewaterer production capacity with box filter press Be 2.6 times of filter press, greatly enhance productivity; Because changed traditional pressure The pressure transmission mode of filter machine, so this dewaterer is simple in structure, complete machine weight is light, manufactures This is low, easily safeguards; Continuously reliable operation has improved production efficiency; The clear water that separates reaches To environmental requirement.

Claims (5)

1. handle superfine granularity solid-liquid separation dehydration machine continuously, it is characterized in that in the cylindrical main tube 1, device filtering net cylinder 5, establish the spiral conveying arrangement 22 of automatic discharging in the filtering net cylinder, the hollow shaft 17 of spiral conveying arrangement is supported on the feeding end seal cover 9 of cylindrical main tube end, on the discharge end seal cover 11, on hollow shaft, lay some liquid-through holes 18, the feeding end of hollow shaft is established pan feeding multi-steering pipe 16, pan feeding multi-steering pipe and pulp-entering pipe road 57, the pan feeding multitube ring flange 49 of calming the anger on the pipeline 59 joins, the discharge end of hollow shaft is established the anti-gas multi-steering pipe 25 of turning one's coat, anti-gas turn one's coat multi-steering pipe and anti-air pipe 61, anti-gas on the backwash pipeline 68 multitube ring flange 50 of turning one's coat joins, cylindrical main tube bottom is established and is unloaded water valve 19, the discharge end of main tube is established automatic discharge port 20, the hinge wheel 29 that connects firmly on hollow shaft joins with the motor 26 that drags the spiral conveying arrangement, connects firmly at the gear wheel 32 on the main tube to be meshed with pinion 31 on dragging main motor 30.

2. according to the described dewaterer of claim 1, it is characterized in that holding together institute by filter cloth 2, protecting wire net 3 and stainless steel sieve grate 4 bags on the filtering net cylinder 5 constitutes.

3. according to the described dewaterer of claim 1, it is characterized in that establishing in the discharge end seal cover 11 blowback backwash passage 15.

4. according to the described dewaterer of claim 1, it is characterized in that being in the isolated plug 48 of hollow shaft 17 interior installings at discharge end seal cover position.

5. according to the described dewaterer of claim 1, it is characterized in that being provided with that feeding end powerfully supports 34, discharge end is powerful supports 33 at the both ends of hollow shaft 17.

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