CN2780343Y

CN2780343Y - Suction device in horizontal bisuction scraper discharge centrifugal machine

Info

Publication number: CN2780343Y
Application number: CN 200520069831
Authority: CN
Inventors: 蔡建春; 施学明; 何迎; 蒋嵬
Original assignee: Zhangjiagang Huada Centrifugal Manufacturing Co Ltd
Current assignee: Zhangjiagang Huada Centrifugal Manufacturing Co Ltd
Priority date: 2005-03-12
Filing date: 2005-03-12
Publication date: 2006-05-17
Anticipated expiration: 2015-03-12

Abstract

The utility model discloses a suction device in a horizontal bi-suction scraper discharge centrifugal machine, which can be used for making a solid-liquid separation effect better. The utility model has a structure that the bottom of a rotary drum is also provided with a pumping drainage hole, the outer side of the pumping drainage hole is fixedly provided with an annular liquid collecting plate with a fold edge and a hollow cavity between an annular liquid collecting body and the bottom of the rotary drum forms a suction chamber. A suction pipe is movably arranged in an installation seat which is fixedly arranged on the bottom plate of a machine housing of the centrifugal machine, and a suction mouth of the suction pipe extends into the suction chamber. The utility model has the advantages that after the inner part of an ordinary horizontal siphonage scraper discharge centrifugal machine is additionally provided with the suction device, even if the situation that the inner wall of the rotary drum is blocked caused by that a connecting plate of solid materials or the solid phase of materials are separated out again occurs, the liquid accumulating at the surface layer of the materials can also be expelled successfully through the suction device. The work efficiency of the centrifugal machine is improved, and the use range of the centrifugal machine is enlarged.

Description

Aspirator in the horizontal double suction centrifuge with cutter discharge of solid

Technical field

The utility model relates to a kind of horizontal double suction centrifuge with cutter discharge of solid, refers more particularly in this kind centrifuge the aspirator in order to discharge liquid.

Background technology

Horizontal siphon centrifuge with cutter discharge of solid is a kind in the centrifuge, the sidewall of the rotary drum in this centrifuge is by inside and outside two-layer the composition, the wherein outer field rotary drum outer wall that is called, internal layer be called drum inner wall, do not have through hole on the rotary drum outer wall, then be provided with through hole on the drum inner wall.As its name suggests, in this kind centrifuge, only be provided with a siphoning installation usually, be used for discharging in the separation process by the liquid of discharging in the rotary drum inner chamber, the structure of siphoning installation can be referring to Fig. 1, shown in Figure 2, mainly comprise: 19 are provided with osculum 14 at the bottom of the rotary drum between drum inner wall 13 and the rotary drum outer wall 12, arranged outside at osculum 14 has the ring-type liquid collecting plate 16 that has flanging---and its shape of cross section is approximate L shaped, cavity at the bottom of this ring-type liquid collecting plate 16 and the rotary drum between 19 has just constituted siphon chamber 15, siphon pipe 4 is movably arranged in the mount pad 17, mount pad 17 is fixedly mounted on the base plate 5 of centrifuge casing 11, and the water sucking mouth 41 of siphon pipe 4 extend in the siphon chamber 15.Also be provided with a micromatic setting in addition and adjust the suction position of the water sucking mouth 41 of siphon pipe 4, the structure of micromatic setting is: rocking arm 3 is fixedlyed connected with siphon pipe 4; outer end of rocking arm 3 is connected with the piston rod 2 that drives oil cylinder 1; drive oil cylinder 1 and also be fixedly mounted on the base plate 5 of casing 11; under the driving that drives oil cylinder 1, rocking arm 3 can drive siphon pipe 4 and do reciprocal rotatablely moving.The operation principle of the siphoning installation of said structure is: at first start centrifuge, make its rotary drum 10 full-speed operation under the driving of main shaft 18, then by being arranged on recoil tube (not shown) in the centrifuge in siphon chamber 15, pour water (or filtrate) in addition, liquid is pressed towards in the rotary drum inner chamber through osculum 14, like this, can get rid of the air in the siphon chamber 15 on the one hand, on the one hand also can be at the filter medium that is arranged at drum inner wall 13 inboards---form one deck liquid on as filter cloth, the material that enters rotary drum 10 inner chambers by cloth tube 24 can be evenly distributed on the filter medium on the drum inner wall 13; Then by cloth tube 24 beginning chargings, by micromatic setting the water sucking mouth 41 of siphon pipe 4 is rotated to a certain centre position simultaneously, after charging, by micromatic setting the water sucking mouth 41 of siphon pipe 4 being rotated to deep-seated again puts---promptly, the filtrates that accumulate in the siphon chamber 15 can be siphoned away to greatest extent so near the position of siphon chamber 15 lateral walls; After material entered rotary drum 10 inner chambers, solid wherein was trapped within the drum inner wall 13, after liquid then can pass drum inner wall 13, in osculum 14 flow into siphon chamber 15, discharged by siphon pipe 4 at last.The shortcoming of above-mentioned siphoning installation is: after work a period of time, if run into solid material knot plate on the drum inner wall 13 or the solid phase of material separate out again and make filter medium on the drum inner wall 13---as filter cloth blocked after, the liquid that accumulates in the material top layer just can not pass drum inner wall 13 and be discharged from, and has influenced the solid-liquid separation effect of centrifuge; The producer that for this reason has on cover, be provided with cast aside the liquid pipe, and the water sucking mouth that will cast aside the liquid pipe directly extend in the rotary drum inner chamber, skim from rotary drum with the liquid that will accumulate in the material top layer, but in casting aside the liquid process, be difficult to hold the liquid layer degree of depth in the rotary drum, often when skimming liquid, also take a lot of solid materials out of, so also influenced the separating effect of centrifuge; And this kind centrifuge can only be applicable to the weight concentration of solid phase particles liquid phase viscosity is less than the separation of the material of 10-2P.S greater than 25% that the scope of application is restricted usually.

Summary of the invention

At the problems referred to above, the utility model has been set up aspirator again in the horizontal siphon centrifuge with cutter discharge of solid that uses at present, make it become the horizontal double suction centrifuge with cutter discharge of solid that existing siphon has suction again.

The primary structure of described aspirator is: also be provided with the pump drainage hole at the bottom of the rotary drum, be set with the ring-type liquid collecting plate of band flanging in the outside in pump drainage hole, the cavity between at the bottom of ring-type liquid collecting body and the rotary drum has constituted suction chamber; Suction tube is movably arranged in the mount pad, and mount pad is fixedly installed on the chassis backplane of centrifuge, and the pump orifice of suction tube extend in the suction chamber.

The further technical scheme of the utility model is: also be provided with the adjusting device that can adjust the suction tube suction position, the structure of described adjusting device is: drive rocking arm and fixedly connected with suction tube, the outer end that drives rocking arm is connected with the piston rod of oil cylinder, and oil cylinder is fixedly mounted on the chassis backplane.

The utility model has the advantages that: after in the common horizontal siphon centrifuge with cutter discharge of solid that uses at present, having set up aspirator, even run into because of the solid phase of solid material knot plate or material and separate out the situation that makes drum inner wall blocked again, also can discharge smoothly by the liquid that aspirator will accumulate in the material top layer, not only improve the operating efficiency of centrifuge, and enlarged the scope of application of centrifuge.

Description of drawings

Fig. 1 is aspirator and the positional structure schematic diagram that embodiment be installed of siphoning installation on chassis backplane in the horizontal double suction centrifuge with cutter discharge of solid that relates to of the utility model;

Fig. 2 is the A-A cross-sectional view of aspirator and siphoning installation among Fig. 1.

Embodiment

Below in conjunction with the drawings and specific embodiments technical scheme described in the utility model and operation principle thereof and advantage are further described.

As shown in Figure 1 and Figure 2, aspirator in the horizontal double suction centrifuge with cutter discharge of solid described in the utility model, its structure is: also be provided with pump drainage hole 23 on 19 at the bottom of the rotary drum, be set with the ring-type liquid collecting plate 22 of band flanging in the outside in pump drainage hole 23, the cavity at the bottom of ring-type liquid collecting body 22 and the rotary drum between 19 has constituted suction chamber 21; Suction tube 6 is movably arranged in the mount pad 20, and mount pad 20 is fixedly installed on the base plate 5 of casing 11 of centrifuge, and the pump orifice 61 of suction tube 6 extend in the suction chamber 21.In the present embodiment, also be provided with the adjusting device of the suction position of the pump orifice 61 that can adjust suction tube 6, the structure of described adjusting device is: drive rocking arm 7 and fixedly connected with suction tube 6, the outer end that drives rocking arm 7 is connected with the piston rod 8 of oil cylinder 9, and oil cylinder 9 is fixedly mounted on the base plate 5 of casing 11.

The operation principle of the exhaust device of said structure is: centrifuge is after work a period of time, certain thickness solid material has just been gathered in inboard at drum inner wall 13, in this case, if run into solid material knot plate on drum inner wall 13, or the solid phase of material is separated out and is made the filter medium of the drum inner wall 13 or the side that sets within it---as filter cloth blocked after, the filtrate of continuing to enter into the material of rotary drum inner chamber just can not be passed drum inner wall 13 and be entered in the siphon chamber 15, also just can not be discharged by siphon pipe 4, filtrate will constantly accumulate in the top layer of the solid material of drum inner wall 13 inboards, and these filtrates can enter in the suction chamber 21 by pump drainage hole 23, at this moment, by starting exhaust device---suction tube 6 can be connected with suction pump in actual applications, just the filtrate that accumulates in the suction chamber 21 can be taken away by suction tube 6, thereby can guarantee that centrifuge has separating effect preferably, also can enlarge the scope of application of centrifuge.

In addition, in aspiration procedure, can start micromatic setting as required, oil cylinder 9 can drive suction tube 6 and makes crankmotion by driving rocking arm 7, to adjust the suction position of pump orifice 61---promptly: make its near or leave the lateral wall of suction chamber 21.Moreover the spacing between pump drainage hole 23 and the drum inner wall 13 can be according to actual needs---the characteristic as the material that separated is determined, to reach preferable solid-liquid separation effect.

Claims

1, the aspirator in the horizontal double suction centrifuge with cutter discharge of solid, it is characterized in that: at the bottom of the rotary drum, also be provided with the pump drainage hole, be set with the ring-type liquid collecting plate of band flanging in the outside in pump drainage hole, the cavity between at the bottom of ring-type liquid collecting body and the rotary drum has constituted suction chamber; Suction tube is movably arranged in the mount pad, and mount pad is fixedly installed on the chassis backplane of centrifuge, and the pump orifice of suction tube extend in the suction chamber.

2, aspirator according to claim 1, it is characterized in that: also be provided with the adjusting device that to adjust the suction tube suction position, the structure of described adjusting device is: drive rocking arm and fixedly connected with suction tube, the outer end that drives rocking arm is connected with the piston rod of oil cylinder, and oil cylinder is fixedly mounted on the chassis backplane.