CN103657186A - Screen separation device for dehydration of fine grains - Google Patents
Screen separation device for dehydration of fine grains Download PDFInfo
- Publication number
- CN103657186A CN103657186A CN201310683854.XA CN201310683854A CN103657186A CN 103657186 A CN103657186 A CN 103657186A CN 201310683854 A CN201310683854 A CN 201310683854A CN 103657186 A CN103657186 A CN 103657186A
- Authority
- CN
- China
- Prior art keywords
- screen cloth
- screening plant
- hollow column
- screen
- spiral
- 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
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a screen separation device for dehydration of fine grains. The screen separation device comprises a hollow upright post and a spiral screen component which is wound on the outer surface of the hollow upright post from top to bottom, wherein the spiral screen component comprises a screen mesh and a housing below the screen mesh; a filtrate passage is formed between the screen mesh and the housing; filtrate holes are formed in the hollow upright post at the parts connected with the housing. As the screen separation device adopts the spiral screen component, materials are enabled to pass rotationally from top to bottom along the spiral screen mesh to be dehydrated. The screen separation device dispenses with a power device, occupies a small area, and is low in cost and high in dehydration rate.
Description
Technical field
The present invention relates to dewater unit, relate in particular to a kind of screening plant for particulate dehydration.
Background technology
In industrial production, often need to carry out dewatering operation to fine, particulate dehydration mainly comprises three kinds of mechanical dehydration, gravity dehydration and heat dehydrations.Mechanical dehydration comprises screening and dewatering, centrifugal dehydration and filtering means dehydration.Gravity dehydration comprises natural gravity dehydration and gravity concentration dehydration, and heat dehydration comprises heating power dehydration etc.Gravity dehydration and mechanical dehydration are the sieving machine dehydrations in two kinds of dewaterings, especially mechanical dehydrations that obtain generally using, and use common especially.Heat dehydration other two kinds of dewatering types of comparing, its dehydrating effect is good, and product moisture is low, but heat dehydration need to expend higher energy, in a lot of on-the-spot application links, does not often use.
In existing sieving machine dewatering operation, high-frequency screen and the sieve bends that use vibration more, these sieves have fixed pattern.The operation principle of high-frequency screen is that the coarse grain that makes to sieve in upper bed layer in screen(ing) machine vibration processes sinks to forming filtering layer, hold back particulate and remove moisture, it requires sieve aperture to hold back the maximum particle size in pan feeding, pan feeding concentration is high, coarse grain first forms filtering layer, hold back particulate, the size of oscillation intensity is wanted to guarantee that coarse grain remains on lower floor.The screening and dewatering effect of high-frequency screen is better, but it needs stronger power, but also will occupy larger area, and the quality of screening effect and the concentration relationship of pan feeding are very tight.Sieve bend area occupied is relatively little, but fixes because of sieve bend size, mainly by the dissection of compass screen surface, dewaters, be subject to the influence factors such as pan feeding concentration, speed, granularmetric composition large, restive, in use, be very easy to channeling water, be difficult to guarantee product moisture, be unfavorable for subsequent job.
Above-described fine dewatering screen separating device, exists following shortcoming:
(1) need to adopt power-equipment that larger exciting force is provided, energy consumption is higher;
(2) form of screening plant is fixed;
(3) influence factor is many, restive;
(4) area occupied is large, has increased capital expenditure cost.
Therefore, be necessary to design the particulate dewatering screen separating device that a kind of energy consumption is low, convenience regulates, influence factor is few, cost is low, dehydration rate is high.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, low, the convenient adjusting of a kind of energy consumption, the screening plant for particulate dehydration that influence factor is few, cost is low, dehydration rate is high are provided.
Technical scheme of the present invention provides a kind of screening plant for particulate dehydration, comprises hollow column and is looped around from the top down the spiral screen assembly of described hollow column outer surface;
Described spiral screen assembly comprises screen cloth and is positioned at the housing of described screen cloth below, between described screen cloth and described housing, forms filtrate channel, on described hollow column, offers filtrate hole with the joint of described housing.
Preferably, described housing comprises base plate and side plate, and the inner edge of described screen cloth is fixed on the outer surface of described hollow column, and the outer rim of described screen cloth is fixed on the junction of described side plate and described base plate.
Preferably, described spiral screen assembly is one deck around described hollow column 360 degree, and described screening plant comprises at least spiral screen assembly described in one deck.
Preferably, the head end of described screen cloth is connected with inlet valve, and the tail end of described screen cloth is connected with blow-off valve.
Preferably, the central axis of described hollow column overlaps with the center line of described spiral screen assembly.
Preferably, the bottom of described hollow column is connected with drainage channel.
Preferably, the outer rim sieve aperture of described screen cloth is greater than the inner edge sieve aperture of described screen cloth.
Preferably, the center line of the sieve aperture of described screen cloth and the central axis of described hollow column are parallel to each other.
Preferably, the tail end of described screen cloth adds material interceptor.
Adopt after technique scheme, there is following beneficial effect: the present invention, owing to having adopted spiral screen assembly, makes material rotate and pass through from the top down along spiral screen cloth, carries out processed.The present invention without power set, area occupied is little, cost is low, dehydration rate is high.
Accompanying drawing explanation
Fig. 1 is the structural representation that comprises the screening plant of individual layer spiral screen assembly in one embodiment of the invention;
Fig. 2 is the structural representation that comprises the screening plant of three helical layer screen assemblies in another embodiment of the present invention.
The Reference numeral table of comparisons:
1---hollow column 2---spiral screen assembly
11---filtrate hole 21---screen cloth 22---filtrate channels
23---base plate 24---side plate
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate the specific embodiment of the present invention.
Referring to Fig. 1, Fig. 1 is the structural representation of the screening plant that comprises individual layer spiral screen assembly.The screening plant dewatering for particulate comprises hollow column 1 and is looped around from the top down the spiral screen assembly 2 of hollow column 1 outer surface.Spiral screen assembly 2 comprises screen cloth 21 and is positioned at the housing of screen cloth 21 belows, forms filtrate channel 22 between screen cloth 21 and housing, on hollow column 1, offers filtrate hole 11 with the joint of housing.Spiral screen assembly 2 is one deck around hollow column 360 degree, and in the present embodiment, screening plant comprises one deck spiral screen assembly 2.
Preferably, as shown in Figure 2, screening plant has comprised three helical layer screen assemblies 2.According to product performance and customer demand, spiral screen assembly can also be 1/2 layer, or two-layer, or more multi-layered.Can to the requirement of product moisture, carry out the number of plies of flexible modulation spiral screen assembly according to the character of the moisture of pan feeding, fine self and client, by changing the movement travel of material, and then reach the object of effective adjusting material moisture.
In the present embodiment, housing comprises base plate 23 and side plate 24, and the inner edge of screen cloth 21 is fixed on the outer surface of hollow column 1, and the outer rim of screen cloth 21 is fixed on the junction of side plate 24 and base plate 23.
The arrow A of fine from Fig. 2 enters on screen cloth 21, and fine is along screen cloth 21 rotational slide from the top down.In the process of sliding, the liquid in fine sees through screen cloth 21 and enters into filtrate channel 22, by base plate 23, is accepted.Because base plate 23 and the junction of hollow column 1 offer filtrate hole 11, liquid enters into filtrate hole 11 from base plate 23, from the bottom of hollow column 1, discharge in the direction of arrow C, fine finally slides into the tail end of screen cloth 21 and discharges along arrow B direction, thereby realizes the dewatering operation of fine.
The present embodiment, due to without power set, has reduced cost.Screen apparatus can vertically increase or reduce spiral screen assembly, has reduced floor space, has reduced capital expenditure cost.
Preferably, the base plate 23 of housing and side plate 24 can be one-body molded.The cross section of housing is arc, and the outer rim of housing is higher than the inner edge of housing.
Preferably, the head end of screen cloth 21 is connected with inlet valve (not shown), and the tail end of screen cloth 21 is connected with blow-off valve (not shown).Inlet valve is for controlling speed and the amount of charging, and blow-off valve is for controlling speed and the amount of discharge.
In the present embodiment, as shown in Figure 1-2, the central axis 12 of hollow column 1 overlaps with the center line of spiral screen assembly 2.Outer rim and the distance between central axis 12 of spiral screen cloth 21 and housing are constant all the time.
Preferably; spiral screen assembly 2 can be irregular spirality; distance between the margin and center axis of screen cloth and housing can become large from the top down gradually; also can diminish gradually from the top down; also can time little when large, so long as all belong to protection scope of the present invention around hollow column 1 from the top down along hollow column 1.
Preferably, the bottom of hollow column 1 is connected with drainage channel (not shown), and the liquid of discharging from the bottom of hollow column 1, drains through drainage channel.
Preferably, for fine can be discharged smoothly, the outer rim sieve aperture of screen cloth 21 is greater than the inner edge sieve aperture of screen cloth 21.Because material is just slower the closer to the inner edge speed of service, centrifugal force is less, if inner edge sieve aperture is large, is unfavorable for the smooth discharge of material.But if whole sieve apertures of screen cloth 21 are all enough little, the impact of centrifugal force is just less, inside and outside edge slot size can be identical in this case.
Preferably, the central axis 12 of the center line of the sieve aperture of screen cloth 21 and hollow column 1 is parallel to each other.Due to compass screen surface curl, material is along compass screen surface operation on compass screen surface, and running orbit is curl also.When the central axis 12 of the center line of sieve aperture and hollow column 1 is parallel to each other, the resistance that sieve aperture produces material can be smaller, is conducive to material and discharges smoothly.But if sieve aperture is enough little, the impact of frictional force is just less, and the impact that the direction of sieve aperture is discharged material is in this case just little.
Preferably, the tail end of screen cloth 21 adds material interceptor (not shown).Can realize dehydration, sorting integrated effect.
The present invention has the following advantages:
(1) do not need to arrange vibrating device, reduced the consumption of energy, improved the overall economic efficiency of fine dehydration, and do not produced noise.
(2) do not need moving component, easy operating and maintenance.
(3) can make full use of the on-the-spot current existing height of particulate dehydration, reduce floor space.
(4) size of screen size can require to regulate depending on desired particle size, and the flexibility of sieve screening materials carrying is very strong.
(5) can the requirement of product be processed flexibly according to feature and the client of pan feeding the number of plies of increase and decrease spiral screen assembly.
(6) if install material interceptor additional at discharge end, this equipment can be realized dehydration, sorting integrated effect,, partial density the closer to hollow column is higher, partial density the closer to outer rim is larger, if at coal field, lower the closer to middle standing pillar part of ash, higher the closer to peripheral edge portion ash content.
Above-described is only principle of the present invention and preferred embodiment.It should be pointed out that for the person of ordinary skill of the art, on the basis of the principle of the invention, can also make some other modification, or install miscellaneous part additional, also should be considered as protection scope of the present invention.
Claims (9)
1. for a screening plant for particulate dehydration, it is characterized in that, comprise hollow column and be looped around from the top down the spiral screen assembly of described hollow column outer surface;
Described spiral screen assembly comprises screen cloth and is positioned at the housing of described screen cloth below, between described screen cloth and described housing, forms filtrate channel, on described hollow column, offers filtrate hole with the joint of described housing.
2. screening plant according to claim 1, is characterized in that, described housing comprises base plate and side plate, and the inner edge of described screen cloth is fixed on the outer surface of described hollow column, and the outer rim of described screen cloth is fixed on the junction of described side plate and described base plate.
3. screening plant according to claim 1, is characterized in that, described spiral screen assembly is one deck around described hollow column 360 degree, and described screening plant comprises at least spiral screen assembly described in one deck.
4. screening plant according to claim 1, is characterized in that, the head end of described screen cloth is connected with inlet valve, and the tail end of described screen cloth is connected with blow-off valve.
5. screening plant according to claim 1, is characterized in that, the central axis of described hollow column overlaps with the center line of described spiral screen assembly.
6. screening plant according to claim 1, is characterized in that, the bottom of described hollow column is connected with drainage channel.
7. screening plant according to claim 1, is characterized in that, the outer rim sieve aperture of described screen cloth is greater than the inner edge sieve aperture of described screen cloth.
8. screening plant according to claim 1, is characterized in that, the center line of the sieve aperture of described screen cloth and the central axis of described hollow column are parallel to each other.
9. screening plant according to claim 1, is characterized in that, the tail end of described screen cloth adds material interceptor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683854.XA CN103657186B (en) | 2013-12-13 | 2013-12-13 | A kind of screening plant for particulate dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683854.XA CN103657186B (en) | 2013-12-13 | 2013-12-13 | A kind of screening plant for particulate dehydration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103657186A true CN103657186A (en) | 2014-03-26 |
| CN103657186B CN103657186B (en) | 2015-10-21 |
Family
ID=50296697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310683854.XA Active CN103657186B (en) | 2013-12-13 | 2013-12-13 | A kind of screening plant for particulate dehydration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103657186B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733649A (en) * | 2016-12-05 | 2017-05-31 | 连云港华威硅微粉有限公司 | Silicon powder screening machine based on nylon screen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3190450A (en) * | 1962-08-06 | 1965-06-22 | Phillips Petroleum Co | Filter for a crystal purification column |
| CN87207361U (en) * | 1987-08-01 | 1988-03-09 | 江西工业大学 | Rocking screen for high-speed drying and screening material |
| US5034128A (en) * | 1989-06-29 | 1991-07-23 | Kamyr Aktiebolag | Apparatus for dewatering pulp |
| CN2130106Y (en) * | 1992-07-14 | 1993-04-21 | 陈启松 | Continous constant pressure mocro porous tube crude and fine filting combined filter |
| CN102294324A (en) * | 2011-06-15 | 2011-12-28 | 唐山市神州机械有限公司 | Vertical fine-grained screening device and method |
| CN202683453U (en) * | 2012-06-06 | 2013-01-23 | 王松正 | Roller-type rotary spiral vibrating screen classifier |
-
2013
- 2013-12-13 CN CN201310683854.XA patent/CN103657186B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3190450A (en) * | 1962-08-06 | 1965-06-22 | Phillips Petroleum Co | Filter for a crystal purification column |
| CN87207361U (en) * | 1987-08-01 | 1988-03-09 | 江西工业大学 | Rocking screen for high-speed drying and screening material |
| US5034128A (en) * | 1989-06-29 | 1991-07-23 | Kamyr Aktiebolag | Apparatus for dewatering pulp |
| CN2130106Y (en) * | 1992-07-14 | 1993-04-21 | 陈启松 | Continous constant pressure mocro porous tube crude and fine filting combined filter |
| CN102294324A (en) * | 2011-06-15 | 2011-12-28 | 唐山市神州机械有限公司 | Vertical fine-grained screening device and method |
| CN202683453U (en) * | 2012-06-06 | 2013-01-23 | 王松正 | Roller-type rotary spiral vibrating screen classifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733649A (en) * | 2016-12-05 | 2017-05-31 | 连云港华威硅微粉有限公司 | Silicon powder screening machine based on nylon screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103657186B (en) | 2015-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Noble et al. | A review of state-of-the-art processing operations in coal preparation | |
| CN203816903U (en) | Double-layered vibrating screening device | |
| CN103831235A (en) | Double-layer vibrating screening device and method | |
| US8418856B2 (en) | Vibratory screening apparatus | |
| CN101745502B (en) | Multi-layer sieve bend | |
| US3477571A (en) | Apparatus and method for screening fibrous slurries | |
| CN105170306B (en) | A kind of washing process for the high high high spoil coal of mud of ash | |
| CN201183045Y (en) | Stack high-frequency vibration undersize sieve | |
| CN206009211U (en) | A kind of ore dressing efficient energy-saving straight line shaker | |
| CN204974230U (en) | Stirring swirler | |
| CN110280404A (en) | A kind of cyclone classification device | |
| CN103657186B (en) | A kind of screening plant for particulate dehydration | |
| CN203750832U (en) | Novel hydraulic classification two-section sieve bend | |
| CN103817075B (en) | A kind of novel hydropower classification two sections of sieve bends | |
| CN203663522U (en) | Screening device for fine granule dehydration | |
| CN103495495B (en) | A kind of Super-low-grade iron ore beneficiation method | |
| CN105855071B (en) | Separation of coarse slime classifying integrated machine | |
| CN203678524U (en) | Deep separation equipment for coarse coal slime | |
| RU2560044C2 (en) | Screen for sizing of construction materials | |
| CN205032364U (en) | Sieving mechanism for ore dressing | |
| CN203508386U (en) | High-frequency sieve | |
| CN207971072U (en) | swinging screen | |
| CN206778899U (en) | A kind of high-temperature vacuum granule screening machine | |
| CN203991241U (en) | The vortex sieve of ripple stainless steel mesh | |
| FI77280B (en) | FOERFARANDE OCH ANORDNING FOER BEHANDLING AV FIBERSUSPENSION. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |