CN204769574U - Stone coal piece -rate system - Google Patents
Stone coal piece -rate system Download PDFInfo
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- CN204769574U CN204769574U CN201520365888.9U CN201520365888U CN204769574U CN 204769574 U CN204769574 U CN 204769574U CN 201520365888 U CN201520365888 U CN 201520365888U CN 204769574 U CN204769574 U CN 204769574U
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Abstract
The utility model relates to a solid material selects separately the system, concretely relates to stone coal piece -rate system, stone coal piece -rate system is including the screening plant and the mineral separator that connect in order, screening plant is used for carrying out the separation first time to the stone coal, screening plant's oversize gets into mineral separator carries out the separation second time. Still include with the stone coal is sent into screening plant's a conveyor and be arranged in the feeder with a stone coal feeding conveyor of stone coal scuttle. Conveyor top still is provided with a plurality of water jet equipment, and it is right to be used for stone coal water spray among the conveyor. Stone coal piece -rate system can effectively select separately the stone coal, discharge high density impurity such as waste rock wherein to the usable coal resource of effective recycling can show the loss of reduction coal, improves the fuel availability, and economic benefits is high.
Description
Technical field
The utility model relates to a kind of solid material separation system, is specifically related to a kind of piece-rate system of pebble coal.
Background technology
Medium-speed pulverizer, owing to investing little, relatively economical, gets a lot of applications in station boiler unit.Medium-speed pulverizer can produce pebble coal in running, and pebble coal is primarily of foreign material compositions such as gangue, broken coal block, stone and coal dusts.
Pebble coal has that ash content is high, caloric value is low, temperature is high, hardness is large, sulfur-bearing high, deals with cumbersome.The common way of power plant directly abandons, carries out outer selling with lower price, or adopt special pulverized coal preparation system to pulverize pebble coal, then carries out with super sea coal mixing and burn generating.Owing to still containing certain high-quality coal resource in pebble coal, directly abandon or to sell outside lower price, not only waste caused to resource, more the economic benefit of enterprise being brought about great losses.It is economically very inappropriate for mixing the way of burning generating, on the one hand special pulverized coal preparation system needs high investment and operation, administrative expenses, another aspect and super sea coal carry out mixing burning, then want the credit rating of corresponding raising super sea coal, and the raising of super sea coal credit rating is after all still based on the credit rating improving feed coal.In addition, because pebble coal is easy and air generation oxidation heat liberation, easy spontaneous combustion when storing up, brings certain potential safety hazard to power plant's surrounding environment.
Utility model content
For this reason, to be solved in the utility model is in prior art, the problem that pebble coal cannot effectively utilize, thus provides a kind of pebble coal piece-rate system of energy efficiency utilization pebble coal.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of pebble coal piece-rate system described in the utility model, comprises the screening plant and minerals separation device that connect in turn; Described screening plant is used for carrying out first time separation to pebble coal, and the oversize of described screening plant enters described minerals separation device and carries out second time separation.
Also comprise the charging gear and the first conveying device that connect in turn, described charging gear is used for described first conveying device of pebble coal feeding in stone coal bunker, and described first conveying device is used for described pebble coal to send into described screening plant.
Some water injectors are also provided with, for spraying water to the pebble coal in described first conveying device above described first conveying device.
Also comprise the drying device be arranged between described first conveying device and described screening plant, described drying device is used for the described pebble coal after to water spray and carries out drying process.
Also comprise the first feed bin be arranged between described screening plant and described minerals separation device, described first feed bin is for depositing the oversize of described screening plant; Also comprise the second feed bin, described second feed bin is used for depositing the isolated case of low density loads of described minerals separation device.
Described minerals separation device is dry method minerals separation device.
Described screening plant is vibratory sieve, and the hole diameter of sieve (perforated) plate of described vibratory sieve is 3mm ~ 10mm.
Described charging gear is oscillating feeder.
Described first conveying device is jigging conveyer; Described drying device is airing platform.
Also comprise the second conveying device connected between described stone coal bunker and described minerals separation device.
Technique scheme of the present utility model has the following advantages compared to existing technology:
1, described pebble coal piece-rate system comprises the screening plant and minerals separation device that connect in turn; Described screening plant is used for carrying out first time separation to pebble coal, and the oversize of described screening plant enters described minerals separation device and carries out second time separation.Also comprise the first conveying device described pebble coal being sent into described screening plant and the charging gear being used for the pebble coal in stone coal bunker to feed the first conveying device.Some water injectors are also provided with, for spraying water to the pebble coal in described first conveying device above described first conveying device.Described pebble coal piece-rate system can carry out effective sorting to pebble coal, discharges the contour concentration impurity of spoil wherein, thus effectively reclaims available coal resources, significantly can reduce Coal Loss, improves fuel availability, high financial profit.
2, described pebble coal piece-rate system is not transformed power plant's original system, little to the influence on system operation of power plant, invests little, meets the developing direction that national energy-saving reduces discharging, is conducive to developing a circular economy, and improves resource utilization.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is pebble coal piece-rate system structural representation described in the utility model embodiment 1;
In figure, Reference numeral is expressed as: 1-screening plant, 2-minerals separation device, 3-stone coal bunker, 4-charging gear, 5-first conveying device, 6-water injector, 7-drying device, 8-first feed bin, 9-second feed bin, 10-second conveying device.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Embodiment
The present embodiment provides a kind of pebble coal piece-rate system, as shown in Figure 1, comprises charging gear 4, first conveying device 5, screening plant 1 and the minerals separation device 2 that connect in turn.Described charging gear 4 is for feeding described first conveying device 5 by the pebble coal in stone coal bunker 3; Described first conveying device 5 is for sending described pebble coal into described screening plant 1, and described screening plant 1 is separated for carrying out first time to pebble coal; The oversize of described screening plant 1 enters described minerals separation device 2 and carries out second time separation.
Preferably, above described first conveying device 5, be also provided with some water injectors 6, for the pebble coal water spray in described first conveying device 5, to reduce the temperature of pebble coal, avoid the generation of natural phenomena; Meanwhile, reduce airborne dust, and reduce the SO separated out with airborne dust
2, the toxic gas such as CO.Described water injector is selected from but is not limited to hydraulic ejector, all can realize the purpose of this utility model, belongs to protection domain of the present utility model.
Pebble coal after water spray carries out drying by the drying device 7 be arranged between described first conveying device 5 and described screening plant 1 and processes, and deviates from the moisture on pebble coal surface.In the present embodiment, described drying device is preferably airing plane, not only low cost of manufacture, and Non-energy-consumption, is conducive to energy-saving and emission-reduction.
Preferably, described minerals separation device 2 is dry method minerals separation device, described dry method minerals separation device adopts staged separation principle, be separated according to different material density variation, the mineral materials such as coal, sulphur iron, spoil can be isolated, can also reduce moisture, requirement of specifically anhydrating can by filling into hot blast rate to determine, separating effect is remarkable simultaneously.
Preferably, screening plant described in the present embodiment is vibratory sieve, and the hole diameter of sieve (perforated) plate of described vibratory sieve is preferably 3mm ~ 10mm, good separating effect, is conducive to the separation of invalid components.Described charging gear is preferably oscillating feeder, and not only volume is little, structure is simple, operating cost is low, and large, reliable, the continuous performance of feed ability is good; Meanwhile, dust pollution, reliable operation, life-span can be prevented long according to closed fuselage.Described first conveying device is preferably jigging conveyer, and structure is simple, energy consumption is less, equipment operating cost is low; Meanwhile, material presents the conveying of impelling state, not only less to the wearing and tearing of delivery chute, and is conducive to pebble coal cooling.
Described pebble coal piece-rate system also comprises the first feed bin 8 be arranged between described screening plant 1 and described minerals separation device 2, the pebble coal that described first feed bin 8 is directly carried for the oversize or stone coal bunker 3 depositing described screening plant 1.Through inspection, if the pebble coal grade in described pebble coal hopper 3 reaches requirement, then pebble coal directly can enter described first feed bin 8.
Described pebble coal piece-rate system also comprises the second feed bin 9, and described second feed bin 9, for depositing the isolated case of low density loads of described minerals separation device 2, is cleaned coal in the present embodiment.The isolated high density material of described minerals separation device 2, as spoil etc., can stack together with the screenings of described screening plant 1 with selecting.
Described pebble coal piece-rate system can carry out effective sorting to pebble coal, discharges the contour concentration impurity of spoil wherein, thus effectively reclaims available coal resources, significantly can reduce Coal Loss, improves fuel availability, high financial profit.Meanwhile, the sulfur content of coal after sorting obviously reduces, not easily spontaneous combustion during stacking, and this is significant to minimizing environmental pollution.
In addition, prior art, in order to improve coal utilizaton rate, can be recovered into mill to pebble coal, carries out regrind.Because the spoil content in pebble coal is higher, the energy consumption of grinding machine is higher, and wear and tear in machines is comparatively serious, and recondition expense is high.Use pebble coal piece-rate system described in the utility model then can avoid the generation of this problem completely.
And described pebble coal piece-rate system is not transformed power plant's original system, little to the influence on system operation of power plant, invests little, meet the developing direction that national energy-saving reduces discharging, be conducive to developing a circular economy, improve resource utilization.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among protection domain of the present utility model.
Claims (10)
1. a pebble coal piece-rate system, is characterized in that, comprises the screening plant and minerals separation device that connect in turn; Described screening plant is used for carrying out first time separation to pebble coal, and the oversize of described screening plant enters described minerals separation device and carries out second time separation.
2. pebble coal piece-rate system according to claim 1, it is characterized in that, also comprise the charging gear and the first conveying device that connect in turn, described charging gear is used for described first conveying device of pebble coal feeding in stone coal bunker, and described first conveying device is used for described pebble coal to send into described screening plant.
3. pebble coal piece-rate system according to claim 2, is characterized in that, is also provided with some water injectors above described first conveying device, for spraying water to the pebble coal in described first conveying device.
4. pebble coal piece-rate system according to claim 3, is characterized in that, also comprises the drying device be arranged between described first conveying device and described screening plant, and described drying device is used for the described pebble coal after to water spray and carries out drying process.
5., according to the pebble coal piece-rate system described in claim 4, it is characterized in that, also comprise the first feed bin be arranged between described screening plant and described minerals separation device, described first feed bin is for depositing the oversize of described screening plant; Also comprise the second feed bin, described second feed bin is used for depositing the isolated case of low density loads of described minerals separation device.
6. pebble coal piece-rate system according to claim 5, is characterized in that, described minerals separation device is dry method minerals separation device.
7. the pebble coal piece-rate system according to any one of claim 4-6, is characterized in that, described screening plant is vibratory sieve, and the hole diameter of sieve (perforated) plate of described vibratory sieve is 3mm ~ 10mm.
8. pebble coal piece-rate system according to claim 7, is characterized in that, described charging gear is oscillating feeder.
9. pebble coal piece-rate system according to claim 8, is characterized in that, described first conveying device is jigging conveyer; Described drying device is airing platform.
10. the pebble coal piece-rate system according to claim 1-6 or 8 or 9, is characterized in that, also comprises the second conveying device connected between described stone coal bunker and described minerals separation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365888.9U CN204769574U (en) | 2015-05-29 | 2015-05-29 | Stone coal piece -rate system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365888.9U CN204769574U (en) | 2015-05-29 | 2015-05-29 | Stone coal piece -rate system |
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| CN204769574U true CN204769574U (en) | 2015-11-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562366A (en) * | 2016-01-05 | 2016-05-11 | 天津美腾科技有限公司 | Intelligent dry separation main re-cleaning process and equipment |
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2015
- 2015-05-29 CN CN201520365888.9U patent/CN204769574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562366A (en) * | 2016-01-05 | 2016-05-11 | 天津美腾科技有限公司 | Intelligent dry separation main re-cleaning process and equipment |
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