CN105366914A - Coal slime spiral conveying screen dehydration continuous system - Google Patents
Coal slime spiral conveying screen dehydration continuous system Download PDFInfo
- Publication number
- CN105366914A CN105366914A CN201510923404.2A CN201510923404A CN105366914A CN 105366914 A CN105366914 A CN 105366914A CN 201510923404 A CN201510923404 A CN 201510923404A CN 105366914 A CN105366914 A CN 105366914A
- Authority
- CN
- China
- Prior art keywords
- coal slime
- screen cloth
- spiral conveyer
- helical
- dehydration
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a coal slime spiral conveying screen dehydration continuous system. The coal slime spiral conveying screen dehydration continuous system comprises a spiral conveyor; the outside of the spiral conveyor is provided with an upper housing, and a lower housing; the lower housing is a screen capable of filtering water; the lower part of the screen is provided with a precipitation water tank used for collecting matters obtained via screening of the screen; the upper part and the lower part of one side of the precipitation water tank are provided with a water outlet and a pump port respectively; and the pump port is connected with a feeding hopper via a pipeline. According to the coal slime spiral conveying screen dehydration continuous system, the screen is arranged on the lower part of the spiral conveyor, so that small particle coal slime will fall into the precipitation water tank together with removed water. When layer of coal slime and water is realized, the small particle coal slime is pumped into the feeding hopper via the pump port, so that the small particle coal slime is delivered into the spiral conveyor again, and continuous operation is realized.
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 dehydration serialization system.
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 dehydration serialization system is provided.
The technical scheme adopted for realizing object of the present invention is: a kind of coal slime helical feed screen cloth dehydration serialization system, 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; The bottom of described screen cloth is provided with the precipitation header tank for collecting screen cloth dehydration, is respectively arranged with water port and stock mouth above and below described precipitation header tank side; Stock mouth is connected to described hopper by pipeline, and described pipeline is provided with electric pump.
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.Small-particle coal slime in coal slime also can be followed the water taken off and be fallen in precipitation header tank through screen cloth.When after coal slime and moisture layering, first by water port, moisture is discharged, then by stock mouth, short grained coal slime is pumped in hopper, small-particle coal slime is entered in worm conveyor again, achieves continuous operations.
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, achieve continuous operations, avoid material waste.
Accompanying drawing explanation
Figure 1 shows that the structural representation of a kind of coal slime helical feed screen cloth dehydration serialization system.
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 dehydration serialization system, 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.
The bottom of described screen cloth is provided with the precipitation header tank 6 for collecting screen cloth dehydration, and the small-particle coal slime in coal slime also can be followed moisture and be fallen in precipitation header tank 6 through screen cloth.Density due to coal slime is greater than the density of water, after standing for some time, just have obvious layering, in order to coal slime be separated with moisture, is respectively arranged with water port 7 and stock mouth 8 above and below described precipitation header tank 6 side; Stock mouth 8 is connected to described hopper 1 by pipeline 9, and described pipeline 9 is provided with electric pump 10.When after coal slime and moisture layering, first by water port 7, moisture is discharged, then by stock mouth 8, short grained coal slime is pumped in hopper 1, small-particle coal slime is entered in worm conveyor again.
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 dehydration serialization system, 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; The bottom of described screen cloth is provided with the precipitation header tank for collecting screen cloth dehydration, is respectively arranged with water port and stock mouth above and below described precipitation header tank side; Stock mouth is connected to described hopper by pipeline, and described pipeline is provided with electric pump.
2. a kind of coal slime helical feed screen cloth dehydration serialization system 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 dehydration serialization system 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 |
|---|---|---|---|
| CN201510923404.2A CN105366914A (en) | 2015-12-10 | 2015-12-10 | Coal slime spiral conveying screen dehydration continuous system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923404.2A CN105366914A (en) | 2015-12-10 | 2015-12-10 | Coal slime spiral conveying screen dehydration continuous system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105366914A true CN105366914A (en) | 2016-03-02 |
Family
ID=55369625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510923404.2A Pending CN105366914A (en) | 2015-12-10 | 2015-12-10 | Coal slime spiral conveying screen dehydration continuous system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105366914A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638229A (en) * | 2016-11-25 | 2017-05-10 | 长安大学 | Mobile asphalt aggregate dewatering and drying machine and method |
| CN110550781A (en) * | 2019-09-27 | 2019-12-10 | 辽宁工程技术大学 | Self-cleaning type coal slime water separation treatment device |
| CN117302868A (en) * | 2023-10-20 | 2023-12-29 | 沈阳煤炭科学研究所有限公司 | Coal slime screw conveyer |
-
2015
- 2015-12-10 CN CN201510923404.2A patent/CN105366914A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638229A (en) * | 2016-11-25 | 2017-05-10 | 长安大学 | Mobile asphalt aggregate dewatering and drying machine and method |
| CN110550781A (en) * | 2019-09-27 | 2019-12-10 | 辽宁工程技术大学 | Self-cleaning type coal slime water separation treatment device |
| CN110550781B (en) * | 2019-09-27 | 2024-01-30 | 辽宁工程技术大学 | Self-cleaning type coal slime water separation treatment device |
| CN117302868A (en) * | 2023-10-20 | 2023-12-29 | 沈阳煤炭科学研究所有限公司 | Coal slime screw conveyer |
| CN117302868B (en) * | 2023-10-20 | 2024-04-30 | 沈阳煤炭科学研究所有限公司 | Coal slime screw conveyer |
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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: 20160302 |