CN108940614B

CN108940614B - Centrifugal separation drum rotating machine

Info

Publication number: CN108940614B
Application number: CN201810659311.7A
Authority: CN
Inventors: 吴祥昌; 孙锋
Original assignee: Jiangsu Dayang Environmental Protection Engineering Co ltd
Current assignee: Jiangsu Dayang Environmental Protection Engineering Co ltd
Priority date: 2018-06-25
Filing date: 2018-06-25
Publication date: 2021-02-09
Anticipated expiration: 2038-06-25
Also published as: CN108940614A

Abstract

The invention provides a centrifugal separation drum rotating machine which comprises an upper rotating drum, a lower rotating drum, a slag discharge check ring, a positioning ring and a driving shaft, wherein the upper rotating drum is arranged on the upper rotating drum; a plurality of separation chambers are uniformly distributed in the upper rotary drum in the radial direction, the bottom of the upper rotary drum is connected with a positioning ring, and a slag discharging check ring is arranged at the bottom of the upper rotary drum through a spigot of the positioning ring; the inner ring of the positioning ring is axially and slidably connected with the lower rotary drum, the top of the lower rotary drum is contacted with the bottom of the upper rotary drum, and the outer ring of the lower rotary drum is in sealing fit with the inner ring line of the slag discharging check ring; a slag hole is arranged in the positioning ring, and the slag hole is in sealed blocking communication with the separation chambers through the lines; and a sliding adjusting mechanism is arranged outside the input shaft sleeve of the lower rotary drum. The invention can ensure that the separation medium and the rotary drum keep synchronous rotating speed, the medium is relatively static without disturbance, the separation state is the same as that of an experimental centrifuge, and the flow of solid-phase slag can be adjusted at will.

Description

Centrifugal separation drum rotating machine

Technical Field

The invention relates to the field of centrifugal demulsification and solid-liquid separation dual-purpose rotary drum machine equipment, in particular to a centrifugal separation rotary drum machine.

Background

As is well known, the vertical gravity discharge centrifuge is widely used in pharmaceutical, chemical, food and other industries, and has the main functions of: the liquid composition in separation and the drier material, its structure includes: the device comprises a base, a bearing seat is arranged in the base, a main shaft is arranged in the bearing seat, a rotary drum body is sleeved on the main shaft, a discharge port is arranged at the lower part of the rotary drum body, and a discharge hopper is arranged below the discharge port; the drum type washing machine is characterized in that a cylindrical drum is arranged on the drum body, the cylindrical drum is provided with a filter hole, a filter screen is arranged on the inner wall of the cylindrical drum, an annular liquid baffle plate is arranged on the machine base, a machine shell is arranged on the outer side of the drum body, a liquid collecting tank is formed between the liquid baffle plate and the machine shell and is communicated with a liquid outlet arranged on the machine shell, a motor is arranged on the machine base, a machine cover is arranged at the top of the machine shell, and a feeding pipe and a washing pipe which are communicated with a cavity of the drum; the lower part of the main shaft is provided with a driven wheel which is linked with a driving wheel arranged on an output shaft of the motor through a transmission belt; the base is usually provided with four high performance damping shock absorbers. The disc type solid-liquid separator cannot continuously discharge slag, and the intermittent slag discharge mode causes limited application and uncontrollable slag discharge separation effect.

The horizontal screw centrifuge is widely applied to sludge dewatering in the industries such as municipal administration, chemical industry, steel, power plants and the like. The laboratory centrifuge is in an independent closed state when separating materials, so that relatively ideal experimental effects can be obtained when solid-liquid separating and demulsifying are carried out, and the solid-liquid separating limit is clear. However, the laboratory centrifuge has a small processing capacity, and as a verification device, the laboratory centrifuge cannot continuously feed and discharge materials, and cannot meet the requirements of most industrial production processing capacity. All centrifugal separation devices in the current market can not achieve the experimental effect in the actual operation process, and the reason is that: the material can not keep rotating with equipment synchronization in the separation process, and the material motion relies on the frictional force between material and the equipment, has great disturbance, no matter be vertical separation or spiral shell sedimentation centrifuge crouches, and the separation state has great difference with the laboratory, the relative static state when can not reach the material separation in laboratory, and to oiliness material separation and breakdown of emulsion effect very poor. In the prior art, particularly a horizontal screw centrifuge, the separation effect depends on the flocculation effect of a flocculating agent on materials, the treatment effect and the treatment capacity of the horizontal screw centrifuge are adjusted depending on the feeding quantity, and the discharging is free discharging and cannot be adjusted; the prior art does not have multifunctional centrifugal equipment for centrifugal demulsification and solid-liquid separation. And the prior art transfer drum machine can't realize the accurate regulation ejection of compact how much to can't realize the regulation of separation rate, for example the moisture content. In addition, the centrifugal drum rotating machine in the prior art cannot automatically adjust the size of a slag outlet and cannot replace a quick-wear part.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a centrifugal separation rotary drum machine, which can ensure that a separation medium and a rotary drum keep synchronous rotating speed, the medium is relatively static and does not generate disturbance, the separation state is the same as that of an experimental centrifugal machine, the flow of solid-phase slag can be adjusted, the slag can be discharged continuously, and a slag discharge adjusting valve seat can be replaced conveniently and quickly.

The present invention achieves the above-described object by the following technical means.

A centrifugal separation drum machine comprises an upper rotary drum, a lower rotary drum, a slag discharge adjusting valve seat, a positioning ring and a driving shaft; a plurality of separation chambers are uniformly distributed in the upper rotary drum in the radial direction, a feeding distribution disc is arranged in the upper rotary drum, one end of the feeding distribution disc is communicated with a feeding hole, the other end of the feeding distribution disc is communicated with a lower rotary drum, and the lower rotary drum is communicated with the separation chambers;

the bottom of the upper rotary drum is connected with a positioning ring, and the slag discharging adjusting valve seat is arranged at the bottom of the upper rotary drum through a spigot of the positioning ring; the inner ring of the positioning ring is axially and slidably connected with the lower rotating drum, and the O-shaped ring is sealed; the top of the lower rotary drum is contacted with the bottom of the upper rotary drum, and the outer ring of the lower rotary drum is in sealing fit with the inner ring of the slag discharging adjusting valve seat; a slag hole is arranged in the positioning ring, and the slag hole is in sealed blocking communication with the separation chambers through the lines; one end of the driving shaft is connected with the feeding distribution disc, the other end of the driving shaft penetrates through an input shaft sleeve of the lower rotary drum to be connected with the driving device, a sliding adjusting mechanism is installed outside the input shaft sleeve of the lower rotary drum, and the slag outlet and the separating chambers are opened or closed by adjusting the axial position of the lower rotary drum.

Further, the sliding adjusting mechanism comprises a bearing and a discharging adjusting seat; the input shaft sleeve of the lower rotary drum is externally provided with a bearing, the outer ring of the bearing is arranged on a discharging adjusting seat, the discharging adjusting seat is connected with a base, and the input shaft sleeve of the lower rotary drum slides on a driving shaft by rotating the discharging adjusting seat.

Furthermore, outer teeth are arranged on the outer ring of the discharging adjusting seat, an outer gear is arranged on the base, and the outer gear is meshed with the discharging adjusting seat; the outer gear is connected with the power part through a gear train, and numerical control automatic control can be realized.

Further, a displacement sensor is arranged on the base and used for measuring the position of the discharging adjusting seat, so that the opening degree of the slag discharging adjusting valve seat is obtained.

Furthermore, the inner ring of the slag discharging adjusting valve seat is provided with a plurality of conical surfaces and cylindrical surfaces which are arranged at intervals, the cylindrical surfaces are in clearance fit with the outer ring of the lower rotary drum, and the conical surfaces are in line sealing fit with the outer ring of the lower rotary drum and are used for preventing the outer ring of the lower rotary drum and the inner ring of the slag discharging adjusting valve seat from eccentrically shaking in the high-speed operation process to influence the dynamic balance of equipment.

Further, the taper range of the conical surface is 1: 20-1: 3.

and furthermore, one end of the feeding pipe connected with the top of the upper rotary drum is communicated with a feeding system through a rotary joint.

Further, still include the protection casing, the protection casing is located between last rotary drum and the base.

Further, a first splash-proof retainer ring, a slag-stopping apron plate and a second splash-proof retainer ring are arranged inside the protective cover; the first splash-proof check ring is positioned on the outer side of the positioning ring, the inclined surface of the first splash-proof check ring is positioned near the slag outlet, and the second splash-proof check ring is positioned between the slag outlet and the bottom plate; the slag-stopping apron plate and the second splash-proof retainer ring form a tapered annular opening; the annular opening is connected with a slag collecting groove, and the slag collecting groove is provided with a slag leaking hopper.

Further, cooling water is filled in the first splash-proof retainer ring; be equipped with water inlet and delivery port on the first splashproof retaining ring, the water inlet is connected with heat transfer system and delivery port closed loop in proper order for the waste residue of the cooling ejection of compact and the temperature rise that produces when preventing to slag tap and retaining ring collision.

The invention has the beneficial effects that:

1. according to the centrifugal separation drum rotating machine, the inner wall of the upper rotating drum is a cone, so that solid-phase separators can slide along the inner wall of the upper rotating drum under the centrifugal action and gather towards the slag outlet.

2. According to the centrifugal separation drum rotating machine, the feeding distribution disc can ensure that feeding materials are uniformly dispersed to the periphery, and vibration caused by material eccentricity is avoided in operation.

3. According to the centrifugal separation rotary drum machine, the conical surface of the inner ring of the slag discharge adjusting valve seat is in line sealing contact with the outer ring of the lower rotary drum, and the conical surface is adjusted, so that the centrifugal separation rotary drum machine is high in adjusting precision and large in adjusting allowance, outlet flow is conveniently controlled, and separation effect control is realized.

4. The centrifugal separation drum rotating machine provided by the invention has the advantages that the separation medium and the drum rotating are kept at synchronous rotating speed through the multi-equal-division structure of the separation chamber, the medium is relatively static and does not generate disturbance, and the separation state is the same as that of an experimental centrifuge.

5. The centrifugal separation drum rotating machine can realize solid-liquid sedimentation separation at low rotating speed; the demulsification function can be realized at a higher rotating speed.

6. According to the centrifugal separation drum rotating machine, the slag discharging adjusting valve seat is arranged at the bottom of the upper rotating drum through the seam allowance of the positioning ring, so that the centrifugal separation drum rotating machine is convenient to disassemble, convenient to maintain and convenient for replacing wearing parts at the later stage.

7. The centrifugal separation drum rotating machine disclosed by the invention has the advantages that the outer ring of the discharging adjusting seat is provided with the outer teeth, and the outer teeth are connected with an external drive to realize numerical control discharging.

8. According to the centrifugal separation drum rotating machine, the inner ring of the slag discharging adjusting valve seat is provided with the conical surfaces and the cylindrical surfaces which are arranged at intervals, so that the outer ring of the lower drum and the inner ring of the slag discharging adjusting valve seat can not eccentrically shake in the high-speed operation process in the discharging process, and the dynamic balance of equipment is not influenced.

9. According to the centrifugal separation drum rotating machine, the first splash-proof retainer ring is filled with the circulated cooling water, so that waste residues discharged from the slag outlet can be cooled.

Drawings

FIG. 1 is a schematic structural view of a centrifugal separation drum machine according to the present invention.

Fig. 2 is a structural diagram of the separating chamber of the upper rotary drum of the invention.

FIG. 3 is a partial view of a tapping regulator valve seat according to the present invention.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is a sectional view B-B of fig. 3.

FIG. 6 is an assembly view of the slag tapping regulator valve seat and the retainer ring of the present invention.

Fig. 7 is a view showing the internal structure of the shield according to the present invention.

In the figure:

1-upper rotary drum; 2-lower rotary drum; 3-a separation chamber; 4-a feed distribution tray; 5-slag discharging adjusting valve seat; 6-positioning ring; 7-a discharge adjusting seat; 8-a drive shaft; 9-feeding pipe; 10-a base; 11-an external gear; 12-a cylindrical surface; 13-a bearing; 14-a slag outlet; 15-a first splash guard; 16-a second splash guard; 17-slag stopping skirtboard; 18-a displacement sensor; 19-a conical surface; and 20-a slag leakage hopper.

Detailed Description

The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.

As shown in fig. 1 and 2, the centrifugal separation drum machine comprises an upper drum 1, a lower drum 2, a slag discharge regulating valve seat 5, a positioning ring 6 and a driving shaft 8; a plurality of separation chambers 3 are uniformly distributed in the upper rotary drum 1 in the radial direction, a liquid outlet at the top of the upper rotary drum 1 is formed in each separation chamber 3, a feeding pipe 9 is arranged in the upper rotary drum 1, the feeding pipe 9 is located at the axial position of the upper rotary drum 1, one end of the feeding pipe 9 is connected with the top of the upper rotary drum 1, a feeding distribution disc 4 is arranged at the other end of the feeding pipe 9, the other end of the feeding distribution disc 4 is communicated with a lower rotary drum 2, and the lower rotary drum 2 is communicated with the separation chambers 3; the feeding pipe 9 is communicated with a plurality of separation chambers 3 through the feeding distribution plate 4; one end of the feeding pipe 9 connected with the top of the upper rotary drum 1 is communicated with an outlet of a feeding system through a rotary joint. The liquid outlet of the separation chamber 3 can output liquid through the structure of a hose and a sliding ring, which is not described in detail herein because the structure of the hose and the sliding ring is the prior art.

The bottom of the upper rotary drum 1 is connected with a positioning ring 6, the slag discharging adjusting valve seat 5 is arranged at the bottom of the upper rotary drum 1 through a spigot of the positioning ring 6, and the slag discharging adjusting valve seat 5 can be clamped through the spigot matching; the inner ring of the positioning ring 6 is axially connected with the lower rotary drum 2 through a sliding pin, so that the lower rotary drum 2 can axially slide, the top of the lower rotary drum 2 is contacted with the bottom of the upper rotary drum 1, and the outer ring of the lower rotary drum 2 is in sealing fit with the inner ring line of the slag discharge adjusting valve seat 5; a slag outlet 14 is arranged in the positioning ring 6, and the slag outlet 14 is in sealed blocking communication with the separation chambers 3 through the lines; one end of the driving shaft 8 is connected with the feeding distribution disc 4, the other end of the driving shaft 8 penetrates through an input shaft sleeve of the lower rotary drum 2 to be connected with a driving device, and the driving shaft 8 drives the input shaft sleeve of the lower rotary drum 2 to rotate; a sliding adjusting mechanism is arranged outside an input shaft sleeve of the lower rotary drum 2, and the slag outlet 14 and the separation chambers 3 are opened or closed by adjusting the axial position of the lower rotary drum 2; the other end of the driving shaft 8 can penetrate through the base 10 to be connected with the driving device, and a supporting seat is arranged in the base 10 and used for supporting the driving shaft 8. The bottom angle of the sections of the circular truncated cones of the upper rotary drum 1 and the lower rotary drum 2 is not more than 70 degrees. The conical surface of the inner wall of the rotary drum ensures that solid phase separators can slide along the inner wall of the rotary drum under the centrifugal action and gather towards the slag outlet.

The sliding adjusting mechanism comprises a bearing 13 and a discharging adjusting seat 7; the input shaft of the lower rotary drum 2 is externally provided with a bearing 13, the outer ring of the bearing 13 is arranged on a discharging adjusting seat 7, the discharging adjusting seat 7 is connected with a base 10, and the input shaft of the lower rotary drum 2 slides on a driving shaft 8 by rotating the discharging adjusting seat 7. The outer ring of the discharging adjusting seat 7 is provided with outer teeth, an outer gear 11 is arranged on the base 10, and the outer gear 11 is meshed with the outer teeth of the discharging adjusting seat 7; the outer gear 11 is connected to the power section through a gear train. And a displacement sensor 18 is arranged on the base 10 and used for measuring the position of the discharging adjusting seat 7. The discharging adjusting seat 7 and the base 10 can be in threaded connection, and the threads of the discharging adjusting seat can be rectangular threads or fine threads. The input shaft of the lower rotary drum 2 is sleeved on the driving shaft 8 to slide by rotating the discharging adjusting seat 7, so that the slag outlet 14 and a plurality of separation chambers 3 can be opened or closed.

Slag tap adjusts the disk seat 5 and installs through the tang of position circle 6 go up 1 bottoms of rotary drum, can press from both sides tight slag tap adjusts the disk seat 5 through the tang cooperation, it is convenient to remove slag tap adjusts the disk seat 5 like this and dismantles, only need with go up rotary drum 1 and take apart with the bolt of position circle 6, alright take out slag tap adjusts the disk seat 5, be convenient for maintain or wash, also make things convenient for the later stage to change vulnerable part.

The laboratory centrifuge is in the closed state when separating the supplies, therefore can get the more ideal experimental result while separating solid-liquid and breaking emulsion, however, all centrifugal separation devices on the market can't reach the experimental result in the course of actual operation at present, it is because the supplies can't keep relative stillness with the tumbler in the course of separation, there are speed differences, so there are disturbances in the course of separation, the separation state has greater difference with the laboratory separation, can't reach the separation effect of the laboratory, the settling effect is effective, but the breaking emulsion effect is very poor; the invention completely restores the centrifugal separation state of the laboratory through the internal separation state, completely does not generate disturbance during material separation, does not interfere with feeding and discharging, has controllable speed and can continuously work. The feeding distribution plate 4 can ensure that the feeding is uniformly dispersed to the periphery, and the materials are not eccentric to cause vibration in the operation process. Through the multi-equal-division structure of the separation chamber 3, the synchronous rotating speed of the separation medium and the rotary drum is guaranteed, the medium is relatively static and does not generate disturbance, and the separation state is the same as that of the experimental centrifuge.

As shown in fig. 3, 4, 5 and 6, the inner ring of the slag tapping regulating valve seat 5 is provided with a plurality of conical surfaces 19 and cylindrical surfaces 12 which are arranged at intervals, the plurality of conical surfaces 19 are in clearance fit with the outer ring line of the cylindrical surface of the lower rotary drum 2, the plurality of cylindrical surfaces 12 are in close sliding fit with the outer ring of the cylindrical surface of the lower rotary drum 2, and the inner ring of the slag tapping regulating valve seat is provided with a plurality of conical surfaces and cylindrical surfaces which are arranged at intervals, so that the eccentric shaking of the outer ring of the lower rotary drum and the inner ring of the slag tapping regulating valve seat in the high-speed operation process can be ensured, and the dynamic balance. The taper range of the conical surface 19 is 1: 20-1: and 3, the conical surface of the inner ring of the slag discharge adjusting valve seat is in line sealing contact with the outer ring of the lower rotating drum, and the adjusting precision is high, the adjusting allowance is large and the outlet flow is convenient to control through conical surface adjustment. In the figure, 32 conical surfaces 19 and 32 cylindrical surfaces 12 are respectively arranged, and the conical surfaces 19 can correspond to the slag outlets 14 one by one.

As shown in fig. 1 and 7, the hood is located between the upper drum 1 and the base 10. A first splash-proof retainer ring 15, a slag-stopping apron plate 17 and a second splash-proof retainer ring 16 are arranged in the protective cover; the first splash-proof check ring 15 is positioned at the outer side of the positioning ring 6, the inclined surface of the first splash-proof check ring 15 is positioned near the slag outlet 14 and used for enabling splashed waste slag to move towards the slag leakage hopper 20, the section of the first splash-proof check ring 15 is right-angled trapezoid, the inclined edge of the right-angled trapezoid is right opposite to the slag outlet 14, and the splashed waste slag falls into a tapered annular opening formed by the slag blocking apron plate 17 and the second splash-proof check ring 16 after rebounding of the inclined edge; the second splash-proof retainer ring 16 is positioned between the slag hole 14 and the base 10, plays a role in sealing in order to prevent splashed waste slag from entering the sliding adjusting mechanism, the annular hole is connected with a slag collecting groove, and the slag collecting groove is provided with a slag leakage hopper 20. The first splash-proof retainer ring 15 is filled with cooling water; and a water inlet and a water outlet are arranged on the first splash-proof retainer ring 15, and the water inlet is sequentially connected with the heat exchange system and the water outlet in a closed loop manner. Can cool down slag notch exhaust waste residue through the inside circulated cooling water of filling of first splashproof retaining ring.

The drum machine can realize solid-liquid settling separation at low rotating speed; the demulsification function can be realized at a higher rotating speed.

The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A centrifugal separation drum rotating machine is characterized by comprising an upper drum (1), a lower drum (2), a slag discharge adjusting valve seat (5), a positioning ring (6) and a driving shaft (8); a plurality of separation chambers (3) are uniformly distributed in the upper rotary drum (1) in the radial direction, a feeding distribution disc (4) is arranged in the upper rotary drum (1), one end of the feeding distribution disc (4) is communicated with a feeding hole, the other end of the feeding distribution disc (4) is communicated with the lower rotary drum (2), and the lower rotary drum (2) is communicated with the separation chambers (3);

the bottom of the upper rotary drum (1) is connected with a positioning ring (6), and the slag discharging adjusting valve seat (5) is arranged at the bottom of the upper rotary drum (1) through a spigot of the positioning ring (6); the inner ring of the positioning ring (6) is axially and slidably connected with the lower rotary drum (2), the top of the lower rotary drum (2) is contacted with the bottom of the upper rotary drum (1), and the outer ring of the lower rotary drum (2) is in sealing fit with the inner ring line of the slag discharge adjusting valve seat (5); a slag outlet (14) is arranged in the positioning ring (6), and the slag outlet (14) is hermetically communicated with the separation chambers (3) through the lines; one end of the driving shaft (8) is connected with the feeding distribution disc (4), the other end of the driving shaft (8) penetrates through an input shaft sleeve of the lower rotary drum (2) to be connected with a driving device, a sliding adjusting mechanism is installed outside the input shaft sleeve of the lower rotary drum (2), and a slag outlet (14) and the separation chambers (3) are opened or closed by adjusting the axial position of the lower rotary drum (2);

the sliding adjusting mechanism comprises a bearing (13) and a discharging adjusting seat (7); the input shaft of the lower rotary drum (2) is externally provided with a bearing (13), the outer ring of the bearing (13) is arranged on a discharging adjusting seat (7), the discharging adjusting seat (7) is connected with a base (10), and the input shaft of the lower rotary drum (2) slides on a driving shaft (8) by rotating the discharging adjusting seat (7).

2. The centrifugal separation drum machine according to claim 1, characterized in that the outer ring of the discharging adjusting seat (7) is provided with external teeth, an external gear (11) is mounted on the base (10), and the external gear (11) is meshed with the discharging adjusting seat (7); the external gear (11) is connected with the power part through a gear train.

3. A centrifugal drum machine according to claim 1, characterized in that the base (10) is provided with a displacement sensor (18) for measuring the position of the outfeed adjusting seat (7).

4. The centrifugal separation drum machine according to claim 1, wherein the inner ring of the slag discharge regulating valve seat (5) is provided with a plurality of conical surfaces (19) and cylindrical surfaces (12) which are arranged at intervals, the plurality of cylindrical surfaces (12) are in clearance fit with the outer ring of the lower rotary drum (2), and the plurality of conical surfaces (19) are in sealing fit with the outer ring of the lower rotary drum (2).

5. The centrifugal drum machine according to claim 4, wherein the taper of the conical surface (19) is in the range of 1: 20-1: 3.

6. a centrifugal separation drum machine according to claim 1, characterized in that one end of the feeding pipe (9) connected to the top of the upper drum (1) is connected to the feeding system through a rotary joint.

7. A centrifugal drum machine according to any one of claims 1 to 6, further comprising a protective hood located between the upper drum (1) and the base (10).

8. The centrifugal separation drum machine according to claim 7, wherein a first splash guard (15), a slag guard skirt (17) and a second splash guard (16) are provided inside the shield; the first splash-proof retainer ring (15) is positioned outside the positioning ring (6), the inclined surface of the first splash-proof retainer ring (15) is positioned near the slag outlet (14), and the second splash-proof retainer ring (16) is positioned between the slag outlet (14) and the base (10); the slag-stopping apron plate (17) and the second splash-proof retainer ring (16) form a tapered annular opening; the annular opening is connected with a slag collecting groove, and a slag leaking hopper (20) is arranged on the slag collecting groove.

9. The centrifugal drum machine according to claim 8, wherein the first splash guard (15) is internally filled with cooling water; and a water inlet and a water outlet are arranged on the first splash-proof retainer ring (15), and the water inlet is sequentially connected with the heat exchange system and the water outlet in a closed loop manner.