CN105399300A - A screw conveying screen dehydration device for slime - Google Patents
A screw conveying screen dehydration device for slime Download PDFInfo
- Publication number
- CN105399300A CN105399300A CN201510908705.8A CN201510908705A CN105399300A CN 105399300 A CN105399300 A CN 105399300A CN 201510908705 A CN201510908705 A CN 201510908705A CN 105399300 A CN105399300 A CN 105399300A
- Authority
- CN
- China
- Prior art keywords
- screw
- slime
- spiral conveyer
- conveying
- screw conveyer
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/026—Spiral, helicoidal, radial
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Screw Conveyors (AREA)
Abstract
A screw conveying screen dehydration device for slime is disclosed. The device comprises a screw conveyer. A hopper is disposed on the feeding end of the screw conveyer. A discharging port is disposed below the discharging end of the screw conveyer. A screw and a spiral blade are mounted in the screw conveyer. The outside of the screw conveyer is provided with an upper shell and a lower shell. The lower shell is a screen capable of filtering water. The screw with a changing diameter and the spiral blade with a changing screw pitch are adopted by the screw conveyer, a diameter-changing screw pitch-changing screw shaft is more suitable for conveying slime under the condition of same conveying capability and a same feeding section length, and stress on the screw conveyer is smaller during slime conveying. The device reduces working intensity and pressure of operators in filter pressing workshops of a coal preparation plant, increases the efficiency of filter pressing, and increases the recovery efficiency of slime water.
Description
Technical field
The present invention relates to technical field of conveying machinery, particularly relate to a kind of coal slime helical feed screen cloth dewatering unit.
Background technology
In coal separating plant, the dehydration of fine granular materials is comparatively difficult.Especially when Coal dressing becomes more meticulous day by day, after various size separation equipment, coal cross pulverize, the secondary slime of formation, all greatly have impact on the character of black water, has carried out difficulty to black water dewatering bands.In addition, the dense medium etc. that flotation reagent, dense medium cyclone use also makes the composition of black water become to become increasingly complex.Resolve black water dehydration problem, realize the closed cycle of the whole wash water of coal separating plant, significant to the production of whole coal separating plant.
The dehydration equipment that coal separating plant mainly uses has swirler, vacuum filter, wushu thickner etc.For press filtration workshop, the dewatering machine master of usual Bian is exactly this equipment of pressure filter.Press filtration workshop, processes the underflow supplied materials of wushu thickner, is press-filtered out final coal slime, and the moisture of filtering enters the water circulation system of whole coal separating plant, recycles.The dehydrating effect of pressure filter is relatively better, and finally can reclaim coal slime, but belong to discontinuous mode of operation due to it, each pressure-filtering process will circulate and carry out very numerous and diverse operation such as charging, press filtration, discharging.This not only has higher operational requirement to the operator of pressure filter, and the work period is oversize, inefficiency, is not suitable for the situation of process black water continuously.
Summary of the invention
The object of the invention is the technological deficiency for existing in prior art, and a kind of coal slime helical feed screen cloth dewatering unit is provided.
The technical scheme adopted for realizing object of the present invention is: a kind of coal slime helical feed screen cloth dewatering unit, is characterized in that comprising spiral conveyer; The top of described spiral conveyer feeding end is provided with hopper, and the below of spiral conveyer discharge end is provided with discharge port; The inside of described spiral conveyer is provided with screw rod and helical-blade; The outer setting of described spiral conveyer has upper casing and lower casing; Described lower casing is the screen cloth that can filter moisture.
Preferably, described helical-blade increases 1.03-1.05 doubly at the diameter of vertical direction gradually along mass transport direction.
Preferably, described screw rod pitch in the horizontal direction increases 1.03-1.05 doubly gradually along mass transport direction.
Principle of work of the present invention is:
1, the equal diameter extensively adopted in prior art, the worm conveyor of uniform pitch, it is from hopper during charging, and after the some spirals of feed zone are full of material, follow-up spiral just should stop charging.But in practice, due to the compressibility of coal slime, after some spirals are full of material, other spirals also can continue to fill a part of material, this situation will certainly cause the blanking of screw shaft feed zone uneven, cause material knot arch in feed bin, increase the power consumption of helical feed, even occur the situation that conveying blocks.
What 2, spiral conveyer of the present invention adopted is the helical-blade of variable diameters, the screw rod of varying pitch, when identical transport capacity and feed zone length, variable-diameter variable-pitch screw shaft will be more suitable for for conveying coal slime material, in the process of transport coal slime, the stress that spiral conveyer bears is less.
3, the present invention arranges screen cloth by the bottom at spiral conveyer, and make coal slime under the extruding of helical-blade, moisture can be discharged through screen cloth, makes coal slime complete dewatering operation in the process of conveying.
Compared with prior art, the invention has the beneficial effects as follows: the working strength and the pressure that alleviate coal separating plant press filtration plant operations personnel, the efficiency of press filtration can be improved, improve the efficiency that black water reclaims.
Accompanying drawing explanation
Figure 1 shows that a kind of structural representation of coal slime helical feed screen cloth dewatering unit.
Figure 2 shows that the structural representation of screw rod and helical-blade.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment:
Be illustrated in figure 1 a kind of coal slime helical feed screen cloth dewatering unit, comprise spiral conveyer 3; The top of described spiral conveyer 3 feeding end is provided with hopper 1, and the below of spiral conveyer 3 discharge end is provided with discharge port 4; The inside of described spiral conveyer 3 is provided with screw rod 31 and helical-blade 32; The outer setting of described spiral conveyer 3 has upper casing 2 and lower casing 5; Described lower casing 5 is the screen cloth that can filter moisture.By arranging screen cloth in the bottom of spiral conveyer 3, make coal slime under the extruding of helical-blade 32, moisture can be discharged through screen cloth, makes coal slime complete dewatering operation in the process of conveying.
What spiral conveyer of the present invention adopted is the helical-blade of variable diameters, the screw rod of varying pitch, when identical transport capacity and feed zone length, variable-diameter variable-pitch screw shaft will be more suitable for for conveying coal slime material, and in the process of transport coal slime, the stress that spiral conveyer bears is less.
Through test of many times, the worm conveyor being applicable to coal slime conveying has following parameter:
1, described helical-blade 32 increases 1.03-1.05 doubly at the diameter of vertical direction gradually along mass transport direction, and as shown in Figure 2, D2 is 1.03-1.05 times of D1.
2, described screw rod 31 pitch in the horizontal direction increases 1.03-1.05 doubly gradually along mass transport direction, and as shown in Figure 2, L2 is 1.03-1.05 times of L1.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a coal slime helical feed screen cloth dewatering unit, is characterized in that comprising spiral conveyer; The top of described spiral conveyer feeding end is provided with hopper, and the below of spiral conveyer discharge end is provided with discharge port; The inside of described spiral conveyer is provided with screw rod and helical-blade; The outer setting of described spiral conveyer has upper casing and lower casing; Described lower casing is the screen cloth that can filter moisture.
2. a kind of coal slime helical feed screen cloth dewatering unit according to claim 1, is characterized in that the diameter of described helical-blade at vertical direction increases 1.03-1.05 doubly gradually along mass transport direction.
3. a kind of coal slime helical feed screen cloth dewatering unit according to claim 1, is characterized in that described screw rod pitch in the horizontal direction increases 1.03-1.05 doubly gradually along mass transport direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908705.8A CN105399300A (en) | 2015-12-10 | 2015-12-10 | A screw conveying screen dehydration device for slime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908705.8A CN105399300A (en) | 2015-12-10 | 2015-12-10 | A screw conveying screen dehydration device for slime |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105399300A true CN105399300A (en) | 2016-03-16 |
Family
ID=55465112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510908705.8A Pending CN105399300A (en) | 2015-12-10 | 2015-12-10 | A screw conveying screen dehydration device for slime |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105399300A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282179A (en) * | 2017-08-24 | 2017-10-24 | 广东惜福环保科技有限公司 | Garbage dewatering device and refuse disposal system |
| CN109433578A (en) * | 2018-12-26 | 2019-03-08 | 宁波开诚生态技术有限公司 | A kind of draining slag remover |
-
2015
- 2015-12-10 CN CN201510908705.8A patent/CN105399300A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282179A (en) * | 2017-08-24 | 2017-10-24 | 广东惜福环保科技有限公司 | Garbage dewatering device and refuse disposal system |
| CN109433578A (en) * | 2018-12-26 | 2019-03-08 | 宁波开诚生态技术有限公司 | A kind of draining slag remover |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |