CN209197369U - A kind of flyash dry classification collection system - Google Patents

A kind of flyash dry classification collection system Download PDF

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Publication number
CN209197369U
CN209197369U CN201821930751.3U CN201821930751U CN209197369U CN 209197369 U CN209197369 U CN 209197369U CN 201821930751 U CN201821930751 U CN 201821930751U CN 209197369 U CN209197369 U CN 209197369U
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separator
flyash
air
collection system
classification collection
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张洋洋
王群英
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Huadian Electric Power Research Institute Co Ltd
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Huadian Electric Power Research Institute Co Ltd
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Abstract

Dry, collecting device technical field that the utility model relates to flyash, disclose a kind of flyash dry classification collection system, including heat power supply device, stirring drying device, settling chamber, separator and air-introduced machine, the heat power supply device, stirring drying device, settling chamber pass sequentially through ventilation shaft with separator and are connected to, and the air-introduced machine is set on the ventilation shaft between the heat power supply device and the stirring drying device.Flyash dry classification collection system provided by the utility model can carry out wet fly-ash sufficiently to dry, and can be classified according to different fineness and collect dry flyash.

Description

A kind of flyash dry classification collection system
Technical field
Dry, collecting device technical field that the utility model relates to flyash, it is dry more specifically to a kind of flyash Dry classification collection system is mainly used in the drying of the biggish flyash solid waste of water capacity of coal-burning power plant's discharge, collects.
Background technique
Flyash is the fine ash that catching is got off from the flue gas after coal combustion, is that the primary solids of coal-burning power plant's discharge are useless Object has certain degree of harm to environment.Meanwhile flyash can be used in because having certain pozzolanic properties and self-hardening property It builds and builds the road etc. in engineering projects.Currently, part thermal power plant uses the ash disposal of waterpower mode, therefore the flyash water capacity being discharged Larger, activity is low, and fineness is uneven, it is difficult to efficiently utilize.If being dried to flyash and classification being handled, can significantly may be used To improve utilization of fly ash value, turn waste into wealth.
Existing drying materials equipment is mainly dried using drying cylinder, and drying cylinder is connected with feeding mechanism and heat source machine Structure, feeding mechanism are connected with feeding mechanism, and feeding mechanism, which is connected with, breaks up mechanism, and the material after drying, which passes through discharge system, to carry out Discharging.Existing drying equipment has the following deficiencies: first, and there are caking phenomenons for the biggish flyash of water capacity, even across dry Dry cylinder drying is not thorough, to influence the overall activity of flyash wherein still suffering from the drying of part flyash;Second, fine coal Ash needs to be classified and increased operation rate according to different fineness, and current drying equipment does not have a grading function, in use There are inconvenience;Third, current higher, the inadequate energy-saving and environmental protection of drying equipment energy consumption.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of flyash dry classification collection system, it can be to wet-milling Coal ash sufficiently dry, and can be classified according to different fineness and collect dry flyash.
In order to achieve the above object, the utility model provides the following technical solutions: a kind of flyash dry classification collection system System, including heat power supply device, stirring drying device, settling chamber, separator and air-introduced machine, the heat power supply device, stirring drying device, Settling chamber passes sequentially through ventilation shaft with separator and is connected to, and the air-introduced machine is set to the heat power supply device and the stirring drying On ventilation shaft between device.
Further, the top of the settling chamber is equipped with air inlet, and lower part is equipped with air outlet, and bottom is collected equipped with funnel-form Portion, the air inlet and air outlet are connected to the stirring drying device and the separator respectively by ventilation shaft.
Further, the relative position of air inlet described in settling chamber's internal upper part is equipped with deflector.
Further, the separator is cyclone separator, cloth bag separator or electrostatic separator.
Further, the separator is connected to by ventilation shaft with the heat power supply device.
Further, the ventilation shaft between the separator and the heat power supply device is equipped with air dewatering device.
Further, the air dewatering device is steam-water separator or adsorption dewatering device.
Further, the adsorbent material in the adsorption dewatering device is activated alumina, molecular sieve or silica gel particle.
The utility model provides a kind of flyash dry classification collection system, including heat power supply device, stirring drying device, Settling chamber, separator and air-introduced machine, the heat power supply device, stirring drying device, settling chamber and separator pass sequentially through ventilation duct Road connection, the air-introduced machine are set on the ventilation shaft between the heat power supply device and the stirring drying device.Firstly, hot High temperature dry air is inputted stirring drying device and wet fly-ash is dried by source device, sufficiently after dry flyash dehydration Become dry powder coal ash particle, so that the air flowed is carried along into settling chamber, and dry insufficient flyash is due to aqueous Weight is larger, and the air that will not be flowed easily is taken away, this ensures that the flyash being collected into be it is sufficiently dry, without It will appear dry halfway problem.Secondly, system uses the two-stage separate mode of settling chamber and separator, one side of settling chamber Face has biggish space, and the dry powder coal ash particle that thermal current can carry it in settling chamber is further dried, another party The bottom that the dry powder coal ash particle that face partial size is big, quality is big can be deposited in settling chamber automatically under the effect of gravity reaches separation Purpose;And separator then can further particle separation diameter lesser dry powder coal ash particle, thus by the dry powder coal ash of different fineness It is collected respectively, improves the utilization rate of flyash.Flyash dry classification collection system provided by the utility model is especially suitable The drying and classification separation of the wet fly-ash waste material of the fly ash grain big for, quality big containing partial size.
Separator is connected to by ventilation shaft with heat power supply device, so that whole system forms closed loop, separation The low temperature hot wind of device discharge is recycled by heat power supply device, and the waste heat of circulation air obtains maximizing land productivity in system With reaching energy-efficient purpose to reduce the energy consumption of whole system.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of flyash dry classification collection system in the utility model one embodiment;
Fig. 2 is a kind of structural schematic diagram of flyash dry classification collection system in another embodiment of the utility model.
Wherein, it is marked in attached drawing as follows:
10- heat power supply device, 20- stirring drying device, the settling chamber 30-, 31- air inlet, 32- air outlet, 33- collection portion, 34- deflector, 40- separator, 50- air-introduced machine, 60- air dewatering device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, Fig. 1 is a kind of structure of flyash dry classification collection system in the utility model one embodiment Schematic diagram;Fig. 2 is a kind of structural schematic diagram of flyash dry classification collection system in another embodiment of the utility model.
As shown in Figure 1, the utility model proposes a kind of flyash dry classification collection system, including heat power supply device 10, Stir drying device 20, settling chamber 30, separator 40 and air-introduced machine 50, the heat power supply device 10, stirring drying device 20, deposition Room 30 passes sequentially through ventilation shaft with separator 40 and is connected to, and the air-introduced machine 50 is set to the heat power supply device 10 and the stirring On ventilation shaft between drying device 20.Wherein, heat power supply device 10, it is empty for exporting dry heat to stirring drying device 20 Gas can be existing air heating plant;Drying device 20 is stirred, there is feed inlet, inside has agitating device, wet-milling coal After ash is loaded into stirring drying device 20 from feed inlet, agitating device can be crushed the flyash of agglomeration, so that dry More thoroughly, efficiently;On the one hand settling chamber 30, settling chamber 30 are used for the redrying of dry powder coal ash particle, are on the other hand used for When air-flow passes through, the dry powder coal ash particle that partial size is big, quality is big is affected by gravity voluntarily to deposit, separate;Separator 40, For being separated and being collected drying flyash entrained by thermal current;Air-introduced machine 50, for generating the air in system Flowing.
The utility model proposes flyash dry classification collection system in operation, by wet fly-ash from feed inlet load Enter to stir drying device 20, heat power supply device 10 continuously inputs dry hot-air inside stirring drying device 20 to wet Flyash is dried.Dry sufficient fly ash grain is discharged with hot wind from stirring drying device 20, into settling chamber 30, and Sufficiently dry flyash will not leave stirring drying device 20 since water capacity is larger with hot wind, will continue to be left in them into Row is dried repeatedly.The hot wind being discharged from stirring drying device 20 carries dry flyash and initially enters settling chamber 30, partial size is big, The big flyash of quality is affected by gravity voluntarily to be deposited on 30 bottom of settling chamber, achievees the purpose that separation;Then air-flow is taken Band does not enter separator 40 by isolated flyash, separates the lesser flyash of partial size in separator 40, to receive Collect the flyash of different fineness.
The stirring drying device 20 includes dryness storehouse, feed inlet, air inlet and exhaust outlet, and the inside of the dryness storehouse has There is agitating device, the agitating device has agitating shaft, and agitating shaft is equipped with stirrer paddle, and agitating shaft is connect with driving device, Air inlet and exhaust outlet pass through ventilation shaft respectively and connect with heat power supply device 10 and settling chamber 30.Wet fly-ash is loaded from feed inlet Entering to stir drying device 20, driving device drives agitating shaft rotation, and drive stirrer paddle to crush agglomeration flyash, and Wet fly-ash is axially carrying out circulation rolling.The xeothermic air-flow that heat power supply device 10 exports enters dryness storehouse to wet-milling coal from air inlet Ash is dried, and dry sufficient dry powder coal ash particle is discharged with air-flow from exhaust outlet, into subsequent separating step.
As shown in Figure 1, the settling chamber 30 is that an air-flow being vertically arranged leads in one embodiment of the utility model Road has wide inner space, and the top of settling chamber 30 is equipped with air inlet 31, and lower part is equipped with air outlet 32, and bottom is equipped with leakage Bucket-shaped collection portion 33.The air inlet 31 and air outlet 32 are separated with stirring drying device 20 and level-one respectively by circulation line Device 40 is connected to.The thermal current for the carrying dry powder coal ash particle being discharged from stirring drying device 20 enters the inner space of settling chamber 30 Afterwards, entrained dry powder coal ash particle can be dried in flow process again, is equivalent to the redrying of flyash, Therefore, it even if carrying a small amount of not sufficiently dry fly ash grain from the thermal current that stirring drying device 20 is discharged, is passing through After crossing the redrying of settling chamber, it also will become sufficiently dry dry powder coal ash, further ensure isolated flyash Activity.
In order to make settling chamber 30 reach better flyash deposition effect, need to be formed in the inner space of settling chamber 30 Uniform air flow field.Deflector 34, Ke Yiyin is arranged in the relative position of the air inlet 31 described in 30 internal upper part of settling chamber Flow guide forms more uniform flow field in the inner space of settling chamber 30, to reach better flyash deposition effect. In addition, deflector 34 can also reduce direct impact of 31 air-flow of air inlet to 30 inner wall of settling chamber, prevent fly ash grain from existing Assemble on the relative position inner wall of air inlet 31.
Separator 40 can select cyclone separator, cloth bag separator or electrostatic separator in the prior art.Whirlwind point It is a kind of equipment of the separation for gas-solid system or liquid-solid system from device, working principle is to be introduced tangentially into cause by air-flow Rotary motion, make to have the solid particle of larger centrifugal inertial force or drop to get rid of to outside wall surface and separate.Cloth bag separator is to use There is filter bag among a kind of equipment of gas-solid system separation, equipment, air is captured to get off to deposit to bag by dust after filter bag Bottom.Electrostatic separator is to be separated by high-pressure electrostatic, conductive species with non-conductor substance, can be used for dust in air Trapping.
As shown in Fig. 2, in another embodiment of the utility model, in order to maximumlly utilize from the discharge of separator 40 Separator 40 is connected to by ventilation shaft with heat power supply device 10, so can achieve recycle heat benefit by the waste heat of low-temperature airflow Purpose reduces the energy consumption of whole system.
Due to containing a certain amount of vapor from the low-temperature airflow that separator 40 is discharged, in order to reduce the entire circulatory system Air dewatering device 60 can be arranged on the ventilation shaft between separator 40 and heat power supply device 10 in the humidity of middle air.Institute Stating air dewatering device 60 can be steam-water separator or adsorption dewatering device.Wherein, the absorption in the adsorption dewatering device Material can be activated alumina, molecular sieve or silica gel particle.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (8)

1. a kind of flyash dry classification collection system, which is characterized in that including heat power supply device, stirring drying device, settling chamber, Separator and air-introduced machine, the heat power supply device, stirring drying device, settling chamber pass sequentially through ventilation shaft with separator and are connected to, The air-introduced machine is set on the ventilation shaft between the heat power supply device and the stirring drying device.
2. flyash dry classification collection system according to claim 1, which is characterized in that the top of the settling chamber is set There is air inlet, lower part is equipped with air outlet, and bottom is equipped with funnel-form collection portion, the air inlet and air outlet and passes through ventilation shaft point It is not connected to the stirring drying device and the separator.
3. flyash dry classification collection system according to claim 2, which is characterized in that settling chamber's internal upper part institute The relative position for stating air inlet is equipped with deflector.
4. flyash dry classification collection system according to claim 1, which is characterized in that the separator is whirlwind point From device, cloth bag separator or electrostatic separator.
5. flyash dry classification collection system according to any one of claims 1 to 4, which is characterized in that described point It is connected to by ventilation shaft with the heat power supply device from device.
6. flyash dry classification collection system according to claim 5, which is characterized in that the separator and the heat Ventilation shaft between source device is equipped with air dewatering device.
7. flyash dry classification collection system according to claim 6, which is characterized in that the air dewatering device is Steam-water separator or adsorption dewatering device.
8. flyash dry classification collection system according to claim 7, which is characterized in that in the adsorption dewatering device Adsorbent material be activated alumina, molecular sieve or silica gel particle.
CN201821930751.3U 2018-11-22 2018-11-22 A kind of flyash dry classification collection system Active CN209197369U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821930751.3U CN209197369U (en) 2018-11-22 2018-11-22 A kind of flyash dry classification collection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821930751.3U CN209197369U (en) 2018-11-22 2018-11-22 A kind of flyash dry classification collection system

Publications (1)

Publication Number Publication Date
CN209197369U true CN209197369U (en) 2019-08-02

Family

ID=67425415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821930751.3U Active CN209197369U (en) 2018-11-22 2018-11-22 A kind of flyash dry classification collection system

Country Status (1)

Country Link
CN (1) CN209197369U (en)

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