GB2076315A - A device for removing particles from liquid - Google Patents
A device for removing particles from liquid Download PDFInfo
- Publication number
- GB2076315A GB2076315A GB8017117A GB8017117A GB2076315A GB 2076315 A GB2076315 A GB 2076315A GB 8017117 A GB8017117 A GB 8017117A GB 8017117 A GB8017117 A GB 8017117A GB 2076315 A GB2076315 A GB 2076315A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- cylindrical chamber
- outlet
- cylindrical
- particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
- B04C5/15—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with swinging flaps or revolving sluices; Sluices; Check-valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
- B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2221/00—Applications of separation devices
- B01D2221/04—Separation devices for treating liquids from earth drilling, mining
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The device comprises a tubular body component 1 defining first and second substantially parallel sided and co-axial cylindrical chambers 2 and 3, respectively. Pressurised untreated liquid fed into the first chamber via a tangential inlet 4 moves in two vortices 13 and 14 such that particles removed from the liquid pass through an outlet 7 to collect in the second chamber while treated liquid is discharged through an outlet 6, both outlets 7 and 6 are arranged co-axial with the cylindrical chambers. A manually controlled flow valve 10 controls the periodic discharge of collected particles from the second cylindrical chamber. <IMAGE>
Description
SPECIFICATION
Device for removing particles from liquid
This invention relates to the removal of particles from liquid.
In particular, but not exclusively the invention relates to a device for removing particles from a liquid supply to equipment including relatively small flow apertures.
In underground mining it is common practice to spray dust suppression liquid into the omitting zone around a rock or mineral cutter head in order to wet fine dust particles which thereby tend to be suppressed and prevented from becoming airborne in the main ventilation air flow. One problem experienced with such dust suppression spray systems when used with a typical relatively dirty liquid supply is that frequent maintenance is required in order to replace spray units blocked by particles carried by the liquid supply. In order to try and reduce the amount of maintenance required by the spray units it has been proposed to fit a strainer device or a filter device in the liquid supply line upstream of the spray unit.A typical strainer device comprises a tubular piece of perforated plate having relatively few apertures per unit area which when used with a relatively dirty liquid supply tend to quickly become blocked and thereby tend to require frequent maintenance which in many instances is found awkward.
A typical filter divice comprises a pleated mesh element having a relatively large number of apertures per unit area and thereby the filter device tends to have a longer operational life than the previously mentioned strainer device. However, regular maintenance of the filter device is required and such maintenance tends to be very difficult involving ultrasonic cleaning techniques.
An object of the present invention is to provide a device for removing particles from a liquid supply which tends to overcome or reduce the above mentioned problems.
According to the present invention a device for removing particles from a liquid supply comprises a tubular body component defining first and second substantially parallel sided and co-axial cylindrical chambers, a tangential liquid inlet provided adjacent to one end of the first cylindrical chamber, a treated liquid outlet at the end of the first cylindrival chamber adjacent to the tangential inlet, the outlet being substantially co-axial with the cylindrical chambers, a particle outlet from the first cylindrical chamber, the particle outlet being substantially co-axial with the cylindrical chambers and provided at the end of the first cylindrical chamber remote from the first mentioned outlet for treated liquid to provide a particle inlet to the second cylindrical chamber, and particle removal means which in use when liquid is being treated is closed but which periodically is opened to permit discharge of particles from the second cylindrical chamber.
Preferably, the particle outlet from the first cylindrical chamber is defined by an annular plate arranged to partition the first cylindrical chamber from the second cylindrical chamber.
Preferably, the particle removal means comprises a manually controlled flow valve.
The present invention now will be described with reference to the accompanying drawing which shows a sectional view of a device for removing fine particles from a liquid supply, the device being constructed in accordance with the present invention.
The drawing shows a device for removing particles from a relatively dirty supply of dust suppression liquid, typically water, fed to dust suppression spray units in an underground mine. In use, the spray units are mounted to direct jets of liquid into a cutting zone in the vicinity of a mc or mineral cutter head on a mining machine. Alternatively, the spray units are mounted to direct jets of liquid towards cut rock or mineral as it is conveyed away from the cutting zone or working face.
The device comprises a generally tubular body component 1 defining first and second substantially parallel sided and co-axial cylindrical chambers 2 and 3, respectively. A tangential liquid inlet 4 is provided for feeding untreated liquid into the first cylindrical chamber, the liquid being supplied from a pressurising souce (not shown). The tangential inlet 4 is mounted adjacent to one end 5 of the first cylindrical chamber. An outlet 6 for treated liquid is provided at the end 5 of the first cylindrical chamber adjacent to the tangential inlet 5, the outlet 6 being substantially coaxial with the cylindrical chambers. In use, the outlet 6 is hydraulically connected to the previously mentioned spray unit (not shown).
A particle outlet 7 from the first cylindrical chamber is defined by a hole in an annular plate 8 provided at the opposite end to the end 5 adjacent to the tangential inlet 4 and partitioning the first and second cylindrical chambers. The particle outlet 7 is substantially co-axial with the cylindrical chambers and defines a particle inlet to the second cylindrical chamber 3.
The device further comprises particle removal means constituted by a manually controlled flow valve 10 arranged to control flow through an outlet 11 provided in the end 12 of the second cylindrical chamber.
In use, when liquid is being treated for the removal of particles, the valve 10 is closed to prevent flow through the outlet 11. However, the valve 10 is periodically opened to permit discharge of collected particles from the second cylindrical chamber. It will be appreciated that the simple procedure is conducted to empty collected particles from the device and thereby substantially permits continuous oper ation with a virtually uninterrupted supply of liquid to the spray units.
In use, the pressurised source of relatively dirty suppression liquid consisting of a suspension of solid particles in the liquid is fed into the first cylindrical chamber 2 via the tangential inlet 4. Upon entering the first cylindrical chamber the liquid moves with rapid motion around the chamber and two vortices 13 and 14 are formed. The outer vortex 13 has a generally downward flow (as seen in the drawing) towards the particle outlet 7. Particles carried in suspension by the liquid flow tend to be urged towards the outer vortex 13 by centrifugal force and thereby tend to be conveyed through the outlet 7 and into the second cylindrical chamber 3 where they tend to settle up to a level 1 5. Arrows x indicate the settlement of the particles in the second cylindrical chamber.
The inner vortex 14 denotes the path taken by the treated liquid which tends to contain only relatively small particles which are far too small to block the apertures of the spray units and thereby pass uninterrupted through the spraying units. The treated liquid passing up the vortex 14 is fed to the spray units via outlet 6.
After prolonged operation the collected particles substantially reach the level 1 5 in the second cylindrical chamber a mine operator simply opens the valve 10 to permit discharge of substantially all the collected particles from the second cylindrical chamber. The particle removal operation is simple and rapid and can be performed by an unskilled operator.
From the above description it will be appreciated that the present invention provides a simple, reliable and virtually trouble free device for removing particles from a dust suppression supply in an underground mine.
Claims (4)
1. A device for removing particles from a liquid supply comprising a tubular body component defining first and second substantially parallel sided and co-axial cylindrical chambers, a tangential liquid inlet provided adjacent to one end of the first cylindrical chamber, a treated liquid outlet at the end of the first cylindrical chamber adjacent to the tangential inlet, the outlet being substantially coaxial with the cylindrical chambers, a particle outlet from the first cylindrical chamber, the particle outlet being substantially co-axial with the cylindrical chambers and provided at the end of the first cylindrical chamber remote from the first mentioned outlet for treated liquid to provide a particle inlet to the second cylindrical chamber, and particle removal means which in use when liquid is being treated is closed but which periodically is opened to permit discharge of particles from the second cylindrical chamber.
2. A device as claimed in claim 1, in which the particle outlet from the first cylindrical chamber is defined by an annular plate arranged to partition the first cylindrical chamber from the second cylindrical chamber.
3. A device as claimed in claim 1 or 2, in which the particle removal means comprises a manually controlled flow valve.
4. A device for removing particle from a liquid, substantially as described herein and substantially as shown in the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8017117A GB2076315B (en) | 1980-05-23 | 1980-05-23 | Device for removing particles from liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8017117A GB2076315B (en) | 1980-05-23 | 1980-05-23 | Device for removing particles from liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2076315A true GB2076315A (en) | 1981-12-02 |
| GB2076315B GB2076315B (en) | 1983-06-02 |
Family
ID=10513630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8017117A Expired GB2076315B (en) | 1980-05-23 | 1980-05-23 | Device for removing particles from liquid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2076315B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19505073A1 (en) * | 1995-02-15 | 1996-08-22 | Recycling Energie Abfall | Hydrocyclone for sepn. of inert heavy materials from organic slurry |
| US9149166B2 (en) | 2011-01-24 | 2015-10-06 | Electronic Precipitation Systems, LLC | Low energy centrifugal liquid-solid separator system |
| NL2013941B1 (en) * | 2014-12-08 | 2016-10-11 | Flamco Bv | Separator and separation method. |
| DE102021004122A1 (en) | 2021-08-11 | 2023-02-16 | Bta International Gmbh | Process and device for hydrodynamic heavy matter separation with high efficiency |
-
1980
- 1980-05-23 GB GB8017117A patent/GB2076315B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19505073A1 (en) * | 1995-02-15 | 1996-08-22 | Recycling Energie Abfall | Hydrocyclone for sepn. of inert heavy materials from organic slurry |
| US9149166B2 (en) | 2011-01-24 | 2015-10-06 | Electronic Precipitation Systems, LLC | Low energy centrifugal liquid-solid separator system |
| US9414727B2 (en) | 2011-01-24 | 2016-08-16 | Electronic Precipitation Systems, LLC | Low energy sweeper system |
| US9702642B2 (en) | 2011-01-24 | 2017-07-11 | Electronic Precipitation Systems, LLC | Low energy sweeper method |
| NL2013941B1 (en) * | 2014-12-08 | 2016-10-11 | Flamco Bv | Separator and separation method. |
| DE102021004122A1 (en) | 2021-08-11 | 2023-02-16 | Bta International Gmbh | Process and device for hydrodynamic heavy matter separation with high efficiency |
| WO2023016596A1 (en) | 2021-08-11 | 2023-02-16 | Bta International Gmbh | Method and device for hydrodynamically separating dense materials with a high degree of efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2076315B (en) | 1983-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |