阅读说明：本技术 一种卧式螺旋沉降离心机中的液相溢流装置 (Liquid phase overflow device in horizontal spiral sedimentation centrifuge ) 是由 陈苏祥 于 2019-11-18 设计创作，主要内容包括：本发明公开了一种卧式螺旋沉降离心机中的液相溢流装置,包括：设置于转鼓液相出料端底壁上的若干个环形排列的通孔,在各个通孔中分别插设有一个溢流件,各个溢流件的结构均包括：封板、溢流管,封板将溢流管的一端封闭,溢流管插入至通孔中,使得转鼓内腔能与溢流管相连通,封板位于转鼓液相出料端底壁的外侧,在转鼓液相出料端底壁与封板之间的溢流管侧壁上开设有用于溢出转鼓中液相的溢流口。上述的液相溢流装置中的溢流口不对着转鼓外侧的轴承腔设置,并且液相能从溢流口中沿着径向排出,使得液相排出时不易溅向轴承腔,从而能防止液相进入轴承腔；此外,还设置了能对溅向轴承腔的液相进行阻挡的挡液板,从而能进一步的防止液相进入轴承腔。(The invention discloses a liquid phase overflow device in a horizontal spiral sedimentation centrifuge, which comprises: set up the through-hole that a plurality of annular was arranged on rotary drum liquid phase discharge end diapire, insert respectively in each through-hole and be equipped with an overflow piece, the structure of each overflow piece all includes: shrouding, overflow pipe, shrouding seal the one end of overflow pipe, and the overflow pipe inserts to the through-hole for the rotary drum inner chamber can be linked together with the overflow pipe, and the shrouding is located the outside of rotary drum liquid phase discharge end diapire, offers the overflow mouth that is arranged in overflowing the rotary drum liquid phase on the overflow pipe lateral wall between rotary drum liquid phase discharge end diapire and the shrouding. The overflow port in the liquid phase overflow device is not arranged opposite to the bearing cavity outside the rotary drum, and the liquid phase can be discharged from the overflow port along the radial direction, so that the liquid phase is not easy to splash to the bearing cavity when being discharged, and the liquid phase can be prevented from entering the bearing cavity; in addition, a liquid baffle plate capable of blocking liquid phase splashed to the bearing cavity is further arranged, so that the liquid phase can be further prevented from entering the bearing cavity.)

1. A liquid phase overflow in a horizontal spiral decanter centrifuge, comprising: set up the through-hole that a plurality of annular was arranged on rotary drum liquid phase discharge end diapire, its characterized in that: insert respectively in each through-hole and be equipped with an overflow spare, the structure of each overflow spare all includes: shrouding, overflow pipe, shrouding seal the one end of overflow pipe, and the overflow pipe inserts to the through-hole for the rotary drum inner chamber can be linked together with the overflow pipe, and the shrouding is located the outside of rotary drum liquid phase discharge end diapire, has seted up the overflow mouth on the overflow pipe lateral wall between rotary drum liquid phase discharge end diapire and the shrouding, and rethread overflow mouth discharge rotary drum behind the liquid phase entering overflow pipe in the during operation rotary drum.

2. The liquid phase overflow apparatus in a horizontal spiral decanter centrifuge of claim 1, wherein: the outer side of the liquid phase discharge end of the rotary drum is provided with a liquid baffle fixed with the rotary drum, the overflow pipe penetrates through the liquid baffle and then is inserted into the through hole, the sealing plate is located on the outer side of the liquid baffle, and the overflow port is located between the liquid baffle and the bottom wall of the liquid phase discharge end of the rotary drum.

3. The liquid phase overflow apparatus in a horizontal spiral decanter centrifuge of claim 2, wherein: the overflow pipe activity sets up in the through-hole for the overflow pipe can rotate in the through-hole, thereby can adjust the overflow degree of depth between overflow mouth to the rotary drum inside wall, still be provided with: and the plurality of fixing mechanisms are respectively in one-to-one correspondence with the overflow pieces and are used for fixing the overflow pipe so as to lock the overflow depth.

4. A liquid phase overflow apparatus in a horizontal spiral decanter centrifuge, as defined in claim 3, wherein: the structure of each fixing mechanism is as follows: be provided with the screw hole that the arc was arranged along the several on every through-hole outlying fender liquid board, be provided with the via hole on the shrouding, along with the overflow pipe is driven the rotation and is adjusted the overflow degree of depth, the via hole can align with each screw hole respectively, and after the completion was adjusted to the overflow degree of depth, the via hole will align with one of them screw hole, just so can pass through the bolt in the via hole screw in screw hole with the shrouding fixed with fender liquid board to make the overflow pipe can be fixed along with the shrouding together.

5. A liquid phase overflow in a horizontal spiral decanter centrifuge of claim 1, 2, 3 or 4, wherein: and a sealing ring capable of preventing liquid phase leakage is arranged between the overflow pipe and the through hole.

Technical Field

The invention relates to the field of horizontal spiral sedimentation centrifuges, in particular to a liquid phase overflow device in a horizontal spiral sedimentation centrifuge.

Background

The solid-liquid separation part in the horizontal spiral sedimentation centrifuge mainly comprises a rotary drum with high rotation speed, a spiral pusher with the same rotation direction as the rotary drum and with the rotation speed slightly higher or lower than the rotary drum, a differential mechanism and the like. After the suspension to be separated enters the centrifuge drum through the feeding pipe, the high-speed rotating drum can deposit solid-phase particles with density higher than that of a liquid phase on the inner wall of the drum, the spiral pusher and the drum can rotate relatively due to different rotating speeds (namely, a rotating speed difference exists), the spiral pusher and the drum can enable the solid phase deposited on the inner wall of the drum to be pushed to a solid-phase discharge port at one end of the drum by the spiral pusher to be discharged and enter a slag discharging channel by utilizing the relative rotation of the spiral pusher and the drum, and the separated liquid phase can overflow out of the drum through a liquid-phase overflow device at the other end of the drum and enter a liquid outlet channel, so that the solid-.

The structure of a liquid phase overflow device in the existing horizontal spiral sedimentation centrifuge comprises: set up the overflow mouth that a plurality of annular was arranged on the liquid phase discharge end diapire of rotary drum, the liquid phase in the rotary drum can be followed overflow mouth and overflowed and discharged, thereby is provided with the piece that shelters from that can change the overflow degree of depth between overflow mouth to the rotary drum inside wall through sheltering from the overflow mouth on each overflow mouth respectively. The liquid phase overflow device in the horizontal spiral sedimentation centrifuge has the defect that liquid phase easily enters a bearing cavity on the outer side of the rotary drum because the liquid phase can be discharged along the axial direction from the overflow port, and the overflow port is directly arranged relative to the bearing cavity on the outer side of the rotary drum, so that the liquid phase is easily splashed to the bearing cavity on the outer side of the rotary drum when being discharged, the liquid phase is easily caused to enter the bearing cavity, and a bearing supporting a rotary shaft of the rotary drum is easily damaged after the liquid phase enters the bearing cavity.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the liquid phase overflow device in the horizontal spiral sedimentation centrifuge can effectively prevent the overflowed liquid phase from entering the bearing cavity outside the rotary drum.

In order to solve the problems, the technical scheme adopted by the invention is as follows: a liquid phase overflow in a horizontal spiral decanter centrifuge, comprising: set up the through-hole that a plurality of annular was arranged on rotary drum liquid phase discharge end diapire, its characterized in that: insert respectively in each through-hole and be equipped with an overflow spare, the structure of each overflow spare all includes: shrouding, overflow pipe, shrouding seal the one end of overflow pipe, and the overflow pipe inserts to the through-hole for the rotary drum inner chamber can be linked together with the overflow pipe, and the shrouding is located the outside of rotary drum liquid phase discharge end diapire, has seted up the overflow mouth on the overflow pipe lateral wall between rotary drum liquid phase discharge end diapire and the shrouding, and rethread overflow mouth discharge rotary drum behind the liquid phase entering overflow pipe in the during operation rotary drum.

Further, the liquid phase overflow device in the horizontal spiral sedimentation centrifuge comprises: the outer side of the liquid phase discharge end of the rotary drum is provided with a liquid baffle fixed with the rotary drum, the overflow pipe penetrates through the liquid baffle and then is inserted into the through hole, the sealing plate is located on the outer side of the liquid baffle, and the overflow port is located between the liquid baffle and the bottom wall of the liquid phase discharge end of the rotary drum.

Further, the liquid phase overflow device in the horizontal spiral sedimentation centrifuge comprises: the overflow pipe activity sets up in the through-hole for the overflow pipe can rotate in the through-hole, thereby can adjust the overflow degree of depth between overflow mouth to the rotary drum inside wall, still be provided with: and the plurality of fixing mechanisms are respectively in one-to-one correspondence with the overflow pieces and are used for fixing the overflow pipe so as to lock the overflow depth.

Further, the liquid phase overflow device in the horizontal spiral sedimentation centrifuge comprises: the structure of each fixing mechanism is as follows: be provided with the screw hole that the arc was arranged along the several on every through-hole outlying fender liquid board, be provided with the via hole on the shrouding, along with the overflow pipe is driven the rotation and is adjusted the overflow degree of depth, the via hole can align with each screw hole respectively, and after the completion was adjusted to the overflow degree of depth, the via hole will align with one of them screw hole, just so can pass through the bolt in the via hole screw in screw hole with the shrouding fixed with fender liquid board to make the overflow pipe can be fixed along with the shrouding together.

Further, the liquid phase overflow device in the horizontal spiral sedimentation centrifuge comprises: and a sealing ring capable of preventing liquid phase leakage is arranged between the overflow pipe and the through hole.

The invention has the advantages that: the overflow port in the liquid phase overflow device is not arranged opposite to the bearing cavity outside the rotary drum, and the liquid phase can be discharged from the overflow port along the radial direction, so that the liquid phase is not easy to splash to the bearing cavity when being discharged, and the liquid phase can be effectively prevented from entering the bearing cavity; in addition, a liquid baffle plate capable of preventing liquid from splashing to the bearing cavity is further arranged, so that the liquid can be further prevented from entering the bearing cavity.

Drawings

Fig. 1 is a schematic structural diagram of a liquid phase overflow device in a horizontal spiral sedimentation centrifuge according to the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

FIG. 3 is a schematic structural view of a section B-B in FIG. 1.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.

As shown in fig. 1 and 2, a liquid phase overflow apparatus in a horizontal spiral decanter centrifuge comprises: set up six through-holes 2 that the annular was arranged on 1 liquid phase discharge end diapire of rotary drum, insert respectively in each through-hole 2 and be equipped with an overflow piece 3, each overflow piece 3's structure all includes: the overflow drum comprises a sealing plate 31 and an overflow pipe 32, wherein one end of the overflow pipe 32 is sealed by the sealing plate 31, the overflow pipe 32 is inserted into the through hole 2, so that the inner cavity of the drum 1 can be communicated with the overflow pipe 32, and in the embodiment, a sealing ring 5 capable of preventing liquid phase leakage is arranged between the overflow pipe 32 and the through hole 2; the shrouding 21 is located the outside of rotary drum 1 liquid phase discharge end diapire, has seted up overflow mouth 33 on the overflow pipe 32 lateral wall between rotary drum 1 liquid phase discharge end diapire and shrouding 31, and the rethread overflow mouth 33 discharges rotary drum 1 after the liquid phase in the during operation entering overflow pipe 32 in rotary drum 1.

In this embodiment, a liquid blocking plate 4 fixed to the bottom wall of the liquid phase discharging end of the rotary drum 1 is disposed outside the liquid phase discharging end of the rotary drum 1, the overflow pipe 32 penetrates through the liquid blocking plate 4 and then is inserted into the through hole 2, the sealing plate 31 is disposed outside the liquid blocking plate 4, and the overflow port 33 is disposed between the liquid blocking plate 4 and the bottom wall of the liquid phase discharging end of the rotary drum 1.

In addition, as shown in fig. 2 and 3, the overflow pipe 32 is movably disposed in the through hole 2, so that the overflow pipe 32 can rotate in the through hole 2, and the overflow depth from the overflow port 33 to the inner side wall of the drum 1 can be adjusted, and the overflow device is further provided with: six fixing mechanisms for fixing the overflow pipe 32 to lock the overflow depth, one for each overflow member 3; in this embodiment, each fixing mechanism has a structure that: twelve screw holes 41 arranged along an arc are arranged on the liquid baffle plate 4 at the periphery of each through hole 2, through holes 42 are arranged on the sealing plate 31, the overflow depth can be adjusted by driving the overflow pipe 32 to rotate, the through holes 42 can be respectively aligned with the screw holes 41, after the overflow depth is adjusted, the through holes 42 can be aligned with one of the screw holes 41, and therefore the sealing plate 31 and the liquid baffle plate 4 can be fixed by penetrating the through holes 42 through bolts 43 and screwing the bolts into the screw holes 41 to enable the overflow pipe 32 to be fixed together with the sealing plate 31.