CN110882860B

CN110882860B - Disc centrifuge drum

Info

Publication number: CN110882860B
Application number: CN201911256474.1A
Authority: CN
Inventors: 张谷应
Original assignee: Individual
Current assignee: Huang Chunmei
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2021-12-10
Anticipated expiration: 2039-12-10
Also published as: CN110882860A

Abstract

The invention relates to the technical field of centrifuges and discloses a rotary drum of a disc centrifuge, which comprises a bottom shell, wherein the upper shell is fixedly arranged at the upper part of the bottom shell, the rotary drum of the disc centrifuge is characterized in that the disc discs are arranged at unequal intervals by changing the distribution of the traditional equal-interval disc discs, the intervals of the disc discs from top to bottom are gradually increased, the material at the bottom in the rotary drum is just separated by centrifugal motion, so the mixing content of different phases of materials is high, the distance between the disc discs close to the bottom is larger, the flow velocity of the material at the bottom is reduced compared with the original equal-interval flow velocity when the material passes between the disc discs, so that the different phases of the separated material can have enough time to be more sufficiently separated at the lower part, the solid phase material content of liquid phase estimation materials entering between the disc discs at the upper part is greatly reduced, and the liquid phase materials after separation are accelerated to flow out by the smaller disc distance while the solid phase materials are separated, the separation effect of the separator is improved.

Description

Disc centrifuge drum

Technical Field

The invention relates to the technical field of centrifuges, in particular to a rotary drum of a disc type centrifuge.

Background

Disc centrifuge is a very common purification dispersed material in the industry, retrieve the equipment of dispersed material, its main function is to purify the material, classification and classification etc, theory of operation is that the material gets into from the top feed inlet of rotary drum, let in the rotary drum, high-speed rotation through the centrifuge rotor of bottom, it is rotatory to drive the material, make the material be centrifugal motion wherein, different materials separate each other according to its material characteristic, solid residue is discharged from the export of both sides, liquid then is discharged from the discharge gate at top, the realization is to the separation and purification of material, but there are some problems all the time in the current disc centrifuge rotary drum:

1. in the existing centrifuge, materials are centrifugally moved through high-speed rotation of a rotor so as to separate different materials, and the different materials separated from the materials are separated on a path at a disc, but because the traditional discs are distributed equidistantly in the vertical direction, the materials separated from the materials at the position close to the bottom have higher mixed content, the mixed content is smaller when going upwards, and the equidistant distribution can not ensure that enough space is reserved between the discs at the bottom to separate the materials with high mixed content on the one hand, so that the unseparated materials are forced to discharge holes at two sides of the upper part because the subsequent materials are continuously added, the discharged materials often have higher content of solid residues, the separation effect is poor, and the solid residues can easily block the path at the bent part of the upper part in the process of moving to the discharge hole at the upper part, the discharging can not be realized seriously.

2. The material makes it to do the different phase material separation behind the centrifugal motion through the high-speed rotatory rotor among the dish-type separating centrifuge, and the material of this different phase then comes the restriction guide to its discharging path through the dish, but current dish structure function is single, because the material of feed inlet is constantly being sent into, traditional dish can lead to wherein solid phase material can't slide to the inside both sides of rotary drum completely along the skew wall of dish completely owing to the driving force of the material of feed inlet, lead to partial solid phase material to bring to the discharge gate of liquid phase along with the material flow of liquid phase, lead to solid phase material content in the liquid phase higher, thereby influence the effect of separation.

Disclosure of Invention

The invention provides a rotary drum of a disc centrifuge, which has the advantage of good separation effect and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a disk centrifuge rotary drum, includes the drain pan, the upper portion fixed mounting of drain pan has the epitheca, the middle part fixed mounting of epitheca has the inlet pipe, one side fixed mounting of inlet pipe has first liquid phase discharge gate, the opposite side fixed mounting of inlet pipe has the second liquid phase discharge gate, the outside fixed mounting of inlet pipe has the division board, the bottom fixed mounting of drain pan inner wall has the ooff valve, the middle part swing joint of ooff valve has the rotor, the outside fixed mounting of inlet pipe has the erection column that is located the division board lower part, fixed mounting has the dish on the erection column, the lower fixed surface of dish has the filter disc, one side fixed mounting of dish has the baffle.

Preferably, the interval between the discs gradually increases from top to bottom, the minimum distance between the discs is not less than 1mm, and the maximum distance is not more than 3 mm.

Preferably, the circular bottom of the filter disc is pointed, the filter discs are distributed at the bottom of the disc at equal intervals, and the inclination angle of the tangent plane of each filter disc is inclined downwards outwards.

Preferably, the height of the baffle is smaller than the minimum distance between the disks, and the baffle is fixedly arranged in the small port at the upper part of the disk.

The invention has the following beneficial effects:

1. this disk centrifuge rotary drum, distribute through changing traditional equidistant dish, set up the dish into the non-equidistant interval, and from the interval crescent of down the dish, because the material in the inside bottom of rotary drum has just passed through centrifugal motion separation, so the material mixture content of different phases is high, distance between the dish near the bottom is great can make the material velocity of flow of bottom compare in the velocity of flow of original equidistant between the dish reduce to some extent when passing through between the dish, can make the different phase material of the material after the separation have enough time to carry out more sufficient separation in the lower part like this, the solid phase material content greatly reduced of the material is estimated to the liquid phase between the dish that gets into the upper portion like this, the liquid phase material after the less dish distance is accelerating the separation simultaneously to the separation of solid phase material flows, promote the separation effect of separating centrifuge.

2. The disc centrifuge drum is characterized in that equidistant annular tip rings with inclined angles inclined downwards are additionally arranged on the lower surface of a traditional disc, materials are separated into solid-liquid phase mixed materials after centrifugal motion, the separated material mixtures are pushed to move upwards by subsequent feeding, solid-phase materials in the separated material mixtures are blocked by the limiting effect of the tip rings, and can be smoothly diffused out along the lower surface of the disc and concentrated on two sides of the drum, the tip rings are distributed under the disc at equal intervals, so that the solid-phase materials can be blocked by the tip rings of each layer, the separation effect of the solid-liquid phase materials is improved, a vertical downward straight plate is arranged at one end of a small opening of the disc, the straight plate passes through the last defense line of the disc, and the solid-phase materials which cannot be blocked by the tip rings in front can be further blocked finally, further improve the effect of separation, guarantee from the purity of the liquid phase material of upper portion discharge gate.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1.

In the figure: 1. a bottom case; 2. an upper shell; 3. a feed pipe; 4. a first liquid phase discharge port; 5. a second liquid phase discharge port; 6. a partition plate; 7. an on-off valve; 8. a rotor; 9. mounting a column; 10. a disc; 11. a filter tray; 12. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a disk centrifuge drum comprises a bottom shell 1, an upper shell 2 is fixedly mounted on the upper portion of the bottom shell 1, a feed pipe 3 is fixedly mounted in the middle of the upper shell 2, a first liquid phase discharge port 4 is fixedly mounted on one side of the feed pipe 3, a second liquid phase discharge port 5 is fixedly mounted on the other side of the feed pipe 3, a partition plate 6 is fixedly mounted on the outer side of the feed pipe 3, a switch valve 7 is fixedly mounted on the bottom of the inner wall of the bottom shell 1, a rotor 8 is movably connected to the middle of the switch valve 7, a mounting column 9 located on the lower portion of the partition plate 6 is fixedly mounted on the outer side of the feed pipe 3, a disk 10 is fixedly mounted on the mounting column 9, a filter disk 11 is fixedly mounted on the lower surface of the disk 10, and a baffle 12 is fixedly mounted on one side of the disk 10.

Wherein, interval from last down crescent between the dish 10, minimum distance between the dish 10 is not less than 1mm, maximum distance is no longer than 3mm, because the raw materials is the highest at bottom solid-liquid mixture phase content behind the centrifugal separation, the big interval in bottom can reduce the velocity of flow of mixing material in the bottom, increase flow time, and can hold more materials, let the solid phase material in the mixing material can have sufficient time to filter, and the content of upper portion mixing material more just is less, the less clearance in upper portion can be guaranteed to accelerate the velocity of flow of upper portion liquid phase material in the at utmost when screening out remaining solid phase material, improve ejection of compact speed.

The filter discs 11 are pointed at the circular bottoms, the filter discs 11 are distributed at the bottoms of the discs 10 at equal intervals, when solid-liquid mixed materials pass through gaps among the discs 10, the solid-liquid mixed materials are pushed by liquid at the lower part to move upwards during mixing, most of the solid-phase materials are concentrated on the lower surfaces of the discs 10, so that the solid-phase materials are limited by the filter discs 11 and are blocked, the solid-phase materials blocked by the previous filter discs 11 are continuously blocked by the subsequent filter discs 11 to improve the separation effect of the solid-liquid mixed phases of the materials, the section inclination angles of the filter discs 11 incline outwards and downwards, and the blocked solid-phase materials can move towards the inner wall of the rotary drum along the inclined filter discs 11 due to the centrifugal force, so that the separation effect is achieved.

Wherein, the height of baffle 12 is less than the minimum interval between the dish 10, baffle 12 fixed mounting is in the upper portion tip of dish 10, the material that solid-liquid mixes filters through preceding filter disc 11, can reach fine screening effect, but because the motion of mixed liquid promotes its rising by the pressure that subsequent raw materials liquid supplementally produced, so difficult to avoid having solid phase material can't be by filter disc 11 screening down, baffle 12 is add at mixed material motion path's end, can be once more to the screening of solid phase material in the mixed liquid, in order to reach better separation effect.

The theory of operation, the motor is opened, make the rotor 8 of bottom rotate, send into the raw materials from inlet pipe 3, the centrifugal motion is done through the rotation of rotor 8 to the raw materials, make solid-liquid phase material separation wherein, the mixture upward movement after the separation, filter disc 11 and baffle 12 block solid phase material, liquid phase material moves up along the lower surface of dish 10, the solid phase material that blocks down slides along the lower surface of dish 10, concentrate the position to rotary drum drain pan 1 and upper shell 2 junction, the solid phase material that can regularly release wherein through opening and shutting of ooff valve 7, liquid phase material receives the thrust that follow-up raw materials got into and rises to carry out the ejection of compact in the first liquid phase discharge gate 4 and the second liquid phase discharge gate 5 of top both sides, thereby accomplish the separation purification to the raw materials.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a disk centrifuge rotary drum, includes drain pan (1), the upper portion fixed mounting of drain pan (1) has epitheca (2), the middle part fixed mounting of epitheca (2) has inlet pipe (3), one side fixed mounting of inlet pipe (3) has first liquid phase discharge gate (4), the opposite side fixed mounting of inlet pipe (3) has second liquid phase discharge gate (5), the outside fixed mounting of inlet pipe (3) has division board (6), the bottom fixed mounting of drain pan (1) inner wall has ooff valve (7), the middle part swing joint of ooff valve (7) has rotor (8), its characterized in that: a mounting column (9) positioned at the lower part of the partition plate (6) is fixedly mounted on the outer side of the feeding pipe (3), a disc (10) is fixedly mounted on the mounting column (9), a filter disc (11) is fixedly mounted on the lower surface of the disc (10), and a baffle plate (12) is fixedly mounted on one side of the disc (10);

the bottom of the circular filter disc (11) is pointed, the filter discs (11) are distributed at the bottom of the disc (10) at equal intervals, and the inclination angle of the tangent plane of each filter disc (11) inclines downwards outwards;

the height of the baffle plates (12) is smaller than the minimum distance between the disks (10), and the baffle plates (12) are fixedly arranged in the small ports at the upper parts of the disks (10);

when the solid-liquid mixed materials pass through the gaps between the discs (10), the mixed materials are pushed by liquid at the lower part to move upwards, so that most of solid-phase substances are concentrated on the lower surfaces of the discs (10), the solid-phase substances are limited by the filter discs (11) and blocked, the solid-phase substances which are not blocked by the filter discs (11) in front are continuously blocked by the subsequent filter discs (11) to improve the separation effect of the solid-liquid mixed phases of the materials, the inclination angle of the tangent plane of each filter disc (11) inclines outwards and downwards, and the blocked solid-phase substances can move to the inner wall of the rotary drum along the inclined filter discs (11) due to the centrifugal force of the solid-liquid mixed materials; the material that solid-liquid mixes filters through preceding filter disc (11), can reach fine screening effect, but because the motion of mixed liquid promotes its rising by the pressure that subsequent raw materials liquid supplyed the production, so have the solid phase material and can't be by filter disc (11) screening down, add baffle (12) at the very end in mixed material motion route, can be once more again to the screening of the solid phase material in the mixed liquid to reach better separation effect.

2. A disk centrifuge bowl according to claim 1 wherein: the interval between dish (10) is from last down crescent, minimum distance between dish (10) is not less than 1mm, and maximum distance is no longer than 3 mm.