CN104874248A - Device for treating coal dust during coal transportation for coal-fired power plant - Google Patents
Device for treating coal dust during coal transportation for coal-fired power plant Download PDFInfo
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- CN104874248A CN104874248A CN201510276611.3A CN201510276611A CN104874248A CN 104874248 A CN104874248 A CN 104874248A CN 201510276611 A CN201510276611 A CN 201510276611A CN 104874248 A CN104874248 A CN 104874248A
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Abstract
The invention discloses a device for treating coal dust during coal transportation for a coal-fired power plant. The device comprises a water supply chamber, a pump water inlet pipeline, a low-pressure water supply pump, a pump water outlet pipeline, a multi-phase fluid vacuum dust removal chamber, a dust suction hood, a coal dust slurry water outlet pipe, a coal dust filtering and sedimentation chamber; according to the invention, through the utilization of the wind tunnel effect of fluid mechanics, and under the circumstance that water supply potential energy of the pipeline is not changed, interconversion between kinetic energy and pressure energy is realized through the change of structure sizes of the inlet and the outlet of the multi-phase fluid dust removal chamber and the pipeline section thereof, and the pressure change of the vacuum degree of the dust removal chamber as well as orifices and pipelines thereof is formed, so that automatic mixing of air, water and coal dust in the dust removal chamber is realized, and the mixture is conveyed to the coal dust filtering and sedimentation chamber; a traditional suction method that a motor drives a fan is replaced and generated multiple-phase fluid circulates in a closed system, so that recycling of water is realized, the noise is low, running is reliable, the using is safe, the low is low, the maintenance is simple and zero emission of coal dust is realized.
Description
Technical field
The invention belongs to thermal power generating technology field, relate to a kind of coal-burning power plant coal dust treating apparatus, the coal dust treating apparatus of the particularly defeated coal transhipment in a kind of coal-burning power plant.
Background technology
Coal-fired in coal-burning power plant's course of conveying because transhipment drop produces a large amount of coal dust, not only damage the health of workman, and coal dust enter electric elements after control system easily produce misoperation, even set off an explosion and spontaneous combustion.
The coal dust processing method that domestic and international coal handling system is conventional has: water-bath disintegrating scrubber, electric cleaner, sack cleaner, cyclone dust collectors etc.
Water-bath disintegrating scrubber structure is simple, but power of fan large (30 ~ 40KW), water consumption large (1.2 ~ 1.5t/h), noise are large; ESP Efficiency is high, but by coal dust resistivity effects, has certain selective to coal dust, and as coal dust high humidity, polar curve pole plate makes moist dust stratification, and discharge performance declines to a great extent, and son condensation of becoming attached to is creepage, runs tripping operation, makes the actual devoting rate of electric precipitation very low; After the cloth bag of sack cleaner makes moist, running resistance increases, and cloth bag blocks, deashing difficulty, and faults frequent cannot run by long duration; Cyclone dust collectors are limited by the capture ability of effect to coal dust of centrifugal force, and efficiency of dust collection is not high.Therefore these deduster devoting rates are still less than 50%, and operational effect is not good;
There is no both at home and abroad at present utilize wind tunnel effect to construct the recycling an of water, noise is low, reliable, use safety, cost is low, safeguards simple, the dust collection method of the defeated coal transhipment in the coal-burning power plant without discharge.
Summary of the invention
The object of the invention is for coal-burning power plant's coal handling system provides a kind of water saving, energy-saving and environmental protection, closed operation coal dust treating apparatus.
The technical solution adopted in the present invention is: the coal dust treating apparatus of the defeated coal transhipment in a kind of coal-burning power plant, is characterized in that: comprise water supply chamber, pump water inlet pipeline, low pressure feed water pump, water pump outlet pipe road, heterogeneous fluid vacuum cleaning room, dust shield, coal dust slurries outlet pipe, coal dust filtration and mud chamber; Described heterogeneous fluid vacuum cleaning room comprises water inflow nozzle, coal dust import, heterogeneous fluid vacuum mixing chamber, dedusting mixed liquor carrier pipe, and described water inflow nozzle, coal dust import, dedusting mixed liquor carrier pipe are all independently arranged on described heterogeneous fluid vacuum mixing chamber; Described coal dust filters and comprises mud chamber, ventilative cover plate, screen pack and filter septum with mud chamber; Described screen pack is arranged on described middle and upper part, mud chamber, and described ventilative cover plate lid is located in described mud chamber, and described mud chamber is communicated with described water supply chamber by described filter septum; Described dust shield one end is located on defeated coal deflector chute that coal conveyer belt is installed, the other end is connected with the coal dust import be arranged on heterogeneous fluid vacuum mixing chamber is airtight; Described water inflow nozzle one end is connected with described water pump outlet pipe road, the other end stretches in described heterogeneous fluid vacuum mixing chamber, water in described water supply chamber is successively after pump water inlet pipeline, low pressure feed water pump, water pump outlet pipe road and water inflow nozzle, form high-velocity flow, mix with the coal dust that described dust shield is collected in described heterogeneous fluid vacuum mixing chamber; Mixed coal dust slurries with this by being transported in described mud chamber after described dedusting mixed liquor carrier pipe, coal dust slurries outlet pipe.
As preferably, described device also comprises with anemostat, is arranged between described dedusting mixed liquor carrier pipe and coal dust slurries outlet pipe, and the diffusion angle that anemostat is suitable reduces pipe flow speed thus reduces the power consumption of water pump.
As preferably, described water pump outlet pipe road and water inflow nozzle junction are provided with pipe clamp.
As preferably, bottom described heterogeneous fluid vacuum mixing chamber, being provided with sealed mouth, by unclamping sealed mouth, described heterogeneous fluid vacuum cleaning room being cleared up.
The present invention utilizes hydromechanical wind tunnel effect, when piped water supply potential energy is constant, by the physical dimension of heterogeneous fluid dirt pocket nozzle and the change of pipeline section thereof, its kinetic energy and pressure energy are changed mutually, form the vacuum of dirt pocket, and the pressure change of aperture and pipeline, reach dedusting room air, the automatic mixing of water and coal dust, by low pressure feed water pump and pipeline, dust shield, heterogeneous fluid vacuum cleaning room, mixed liquor carrier pipe and anemostat thereof, coal dust filtration realizes producing the defeated coal in coal-burning power plant with mud chamber and transports the heterogeneous fluid of dedusting at a closed system internal circulation flow, conventional motors is replaced to drive the suction method of blower fan, accomplish recycling of water, noise is low, reliable, use safety, cost is low, safeguard simple and without discharge.
Accompanying drawing explanation
Fig. 1: the structure chart of the embodiment of the present invention.
Detailed description of the invention
Understand for the ease of those of ordinary skill in the art and implement the present invention, below in conjunction with drawings and Examples, the present invention is described in further detail, should be appreciated that exemplifying embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Ask for an interview Fig. 1, the coal dust treating apparatus of the defeated coal transhipment in a kind of coal-burning power plant provided by the invention, comprises water supply chamber 1, pump water inlet pipeline 3, low pressure feed water pump 4, water pump outlet pipe road 5, heterogeneous fluid vacuum cleaning room, dust shield 9, anemostat 11, coal dust slurries outlet pipe 12, coal dust filtration and mud chamber; Heterogeneous fluid vacuum cleaning room comprises water inflow nozzle 7, coal dust import 16, heterogeneous fluid vacuum mixing chamber 8, dedusting mixed liquor carrier pipe 10, and water inflow nozzle 7, coal dust import 16, dedusting mixed liquor carrier pipe 10 are all independently arranged on heterogeneous fluid vacuum mixing chamber 8; Coal dust filters and comprises mud chamber 19, ventilative cover plate 13, screen pack 14 and filter septum 2 with mud chamber; Screen pack 14 is arranged on middle and upper part, mud chamber 19, and ventilative cover plate 13 lid is located in mud chamber 19, and mud chamber 19 is communicated with water supply chamber 1 by filter septum 2; Dust shield 9 one end is located on the defeated coal deflector chute 17 of installation on coal conveyer belt 15, the other end is connected with the coal dust import 16 be arranged on heterogeneous fluid vacuum mixing chamber 8 is airtight; Water inflow nozzle 7 one end is connected with water pump outlet pipe road 5, the other end stretches in heterogeneous fluid vacuum mixing chamber 8, and water pump outlet pipe road 5 and water inflow nozzle 7 junction are provided with pipe clamp 6; The water that water supply chamber is 1 li is successively after pump water inlet pipeline 3, low pressure feed water pump 4, water pump outlet pipe road 5 and water inflow nozzle 7, and form high-velocity flow, the coal dust collected with dust shield 9 in heterogeneous fluid vacuum mixing chamber 8 mixes; Mixed coal dust slurries with this by being transported in mud chamber 19 after dedusting mixed liquor carrier pipe 10, coal dust slurries outlet pipe 12; Anemostat 11 is arranged between dedusting mixed liquor carrier pipe 10 and coal dust slurries outlet pipe 12, and the diffusion angle that anemostat 11 is suitable reduces pipe flow speed thus reduces the power consumption of water pump.Being provided with sealed mouth 20 bottom heterogeneous fluid vacuum mixing chamber 8, clearing up by unclamping sealed mouth 20 pairs of heterogeneous fluid vacuum cleaning rooms.
The manufacturing process of the present embodiment is:
Step 1: first water inflow nozzle 7, heterogeneous fluid vacuum mixing chamber 8, multiphase flow blending transportation pipe 10 and anemostat 11 are added unsintered tape by screw thread successively and be tightly connected and form heterogeneous fluid vacuum cleaning room;
Step 2: install screen pack 14, filter septum 2 insertion is installed in filter pocket;
Step 3: anemostat 11 is connected inserts in the coal dust slurries 18 of mud chamber 19 with coal dust slurries outlet pipe 12, ventilative cover plate 13;
Step 4: connect water inflow nozzle 7 and water pump outlet pipe road 5 by pipe clamp 6, connects low pressure feed water pump 4, pump water inlet pipeline 3 and intake chamber 1 successively;
Step 5: connect coal dust import 16 and dust shield 9;
Step 6: install sump sealed mouth 20;
Step 7: dust shield 9 aims at coal conveyer belt 15 and defeated coal deflector chute 17.
The present invention utilizes fluid dynamic wind tunnel effect, when piped water supply potential energy is constant, by the physical dimension of water inflow nozzle in heterogeneous fluid dirt pocket and the change of pipeline section thereof, make the mutual conversion of its kinetic energy and pressure energy, the pressure of the vacuum forming dirt pocket and aperture and pipeline changes, reach automatic mixing and the discharge of dedusting room air, water and coal dust.
By low pressure feed water pump and pump water inlet pipeline, water pump outlet pipe road, dust shield, heterogeneous fluid vacuum cleaning room, dedusting mixed liquor carrier pipe and anemostat, coal dust filtration and mud chamber, realize producing the defeated coal in coal-burning power plant and transport the heterogeneous fluid of dedusting at a closed system internal circulation flow.
The sewage given off enters coal dust and filters and mud chamber, and by ventilative cover plate, screen pack, filter septum, they are connected successively, enter water supply chamber after filtration, realize the zero-emission with coal dust that recycles of water.
Although this description more employs the term such as water supply chamber 1, filter septum 2, pump water inlet pipeline 3, low pressure feed water pump 4, water pump outlet pipe road 5, pipe clamp 6, heterogeneous fluid vacuum cleaning room, water inflow nozzle 7, heterogeneous fluid vacuum mixing chamber 8, dust shield 9, dedusting mixed liquor carrier pipe 10, anemostat 11, coal dust slurries outlet pipe 12, ventilative cover plate 13, screen pack 14, coal conveyer belt 15, coal dust import 16, defeated coal deflector chute 17, coal dust slurries 18, mud chamber 19, sealed mouth 20, do not get rid of the possibility using other terms.Use these terms to be only used to describe essence of the present invention more easily, the restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Should be understood that, the part that this description does not elaborate all belongs to prior art.
Should be understood that; the above-mentioned description for preferred embodiment is comparatively detailed; therefore the restriction to scope of patent protection of the present invention can not be thought; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that the claims in the present invention protect; can also make and replacing or distortion, all fall within protection scope of the present invention, request protection domain of the present invention should be as the criterion with claims.
Claims (4)
1. a coal dust treating apparatus for the defeated coal transhipment in coal-burning power plant, is characterized in that: comprise water supply chamber (1), pump water inlet pipeline (3), low pressure feed water pump (4), water pump outlet pipe road (5), heterogeneous fluid vacuum cleaning room, dust shield (9), coal dust slurries outlet pipe (12), coal dust filtration and mud chamber;
Described heterogeneous fluid vacuum cleaning room comprises water inflow nozzle (7), coal dust import (16), heterogeneous fluid vacuum mixing chamber (8), dedusting mixed liquor carrier pipe (10), and described water inflow nozzle (7), coal dust import (16), dedusting mixed liquor carrier pipe (10) are all independently arranged on described heterogeneous fluid vacuum mixing chamber (8);
Described coal dust filters and comprises mud chamber (19), ventilative cover plate (13), screen pack (14) and filter septum (2) with mud chamber; Described screen pack (14) is arranged on described mud chamber (19) middle and upper part, described ventilative cover plate (13) lid is located in described mud chamber (19), and described mud chamber (19) is communicated with described water supply chamber (1) by described filter septum (2);
Described dust shield (9) one end is located on the defeated coal deflector chute (17) of installation on coal conveyer belt (15), the other end is connected with the coal dust import (16) be arranged on heterogeneous fluid vacuum mixing chamber (8) is airtight;
Described water inflow nozzle (7) one end is connected with described water pump outlet pipe road (5), the other end stretches in described heterogeneous fluid vacuum mixing chamber (8), the inner water of described water supply chamber (1) is successively after pump water inlet pipeline (3), low pressure feed water pump (4), water pump outlet pipe road (5) and water inflow nozzle (7), form high-velocity flow, the coal dust collected with described dust shield (9) in described heterogeneous fluid vacuum mixing chamber (8) mixes; Mixed coal dust slurries with this by being transported in described mud chamber (19) after described dedusting mixed liquor carrier pipe (10), coal dust slurries outlet pipe (12).
2. the coal dust treating apparatus of the defeated coal transhipment in coal-burning power plant according to claim 1, it is characterized in that: also comprise with anemostat (11), be arranged between described dedusting mixed liquor carrier pipe (10) and coal dust slurries outlet pipe (12), the diffusion angle that anemostat (11) is suitable reduces pipe flow speed thus reduces the power consumption of water pump.
3. the coal dust treating apparatus of the defeated coal transhipment in coal-burning power plant according to claim 1, is characterized in that: described water pump outlet pipe road (5) and water inflow nozzle (7) junction are provided with pipe clamp (6).
4. the coal dust treating apparatus of the defeated coal transhipment in coal-burning power plant according to claim 1, it is characterized in that: described heterogeneous fluid vacuum mixing chamber (8) bottom is provided with sealed mouth (20), clears up described heterogeneous fluid vacuum cleaning room by unclamping sealed mouth (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276611.3A CN104874248A (en) | 2015-05-27 | 2015-05-27 | Device for treating coal dust during coal transportation for coal-fired power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276611.3A CN104874248A (en) | 2015-05-27 | 2015-05-27 | Device for treating coal dust during coal transportation for coal-fired power plant |
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| CN104874248A true CN104874248A (en) | 2015-09-02 |
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| CN201510276611.3A Pending CN104874248A (en) | 2015-05-27 | 2015-05-27 | Device for treating coal dust during coal transportation for coal-fired power plant |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244355A (en) * | 2008-03-19 | 2008-08-20 | 山东天河科技有限公司 | Dust-collecting equipment |
| CN101430109A (en) * | 2008-12-11 | 2009-05-13 | 武汉大学 | Circulation type dismounting and washing free cooking-fume exhauster |
| CN202080742U (en) * | 2011-05-30 | 2011-12-21 | 重庆广播电视大学 | Dedusting device for transfer point of belt conveyor |
| CN103213805A (en) * | 2013-04-21 | 2013-07-24 | 温巨国 | Feeding machine with negative pressure dust-extraction device |
| CN203935720U (en) * | 2014-06-30 | 2014-11-12 | 晋中市三元风能除霾发电技术研究所 | The large flow of gathering type wind is except haze air cleaning system |
-
2015
- 2015-05-27 CN CN201510276611.3A patent/CN104874248A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244355A (en) * | 2008-03-19 | 2008-08-20 | 山东天河科技有限公司 | Dust-collecting equipment |
| CN101430109A (en) * | 2008-12-11 | 2009-05-13 | 武汉大学 | Circulation type dismounting and washing free cooking-fume exhauster |
| CN202080742U (en) * | 2011-05-30 | 2011-12-21 | 重庆广播电视大学 | Dedusting device for transfer point of belt conveyor |
| CN103213805A (en) * | 2013-04-21 | 2013-07-24 | 温巨国 | Feeding machine with negative pressure dust-extraction device |
| CN203935720U (en) * | 2014-06-30 | 2014-11-12 | 晋中市三元风能除霾发电技术研究所 | The large flow of gathering type wind is except haze air cleaning system |
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Application publication date: 20150902 |