CN212018912U - Garbage power station fly ash treatment system - Google Patents
Garbage power station fly ash treatment system Download PDFInfo
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- CN212018912U CN212018912U CN202020532532.0U CN202020532532U CN212018912U CN 212018912 U CN212018912 U CN 212018912U CN 202020532532 U CN202020532532 U CN 202020532532U CN 212018912 U CN212018912 U CN 212018912U
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Abstract
The utility model discloses a flying ash treatment system of a garbage power station, which comprises a flying ash storehouse, wherein the flying ash storehouse is communicated with flying ash conveying devices of a plurality of boilers; the bottom of the fly ash storehouse is provided with an ash outlet which is connected with a bin type pump, and the bin type pump is provided with a conveying outlet which is communicated with the rotary cement kiln; the top of the fly ash storehouse is provided with a storehouse top cloth bag dust remover, the storehouse top cloth bag dust remover is communicated with an air storage tank, and the air storage tank is communicated with a compressed air source.
Description
Technical Field
The utility model belongs to the technical field of rubbish power plant flying dust is handled, concretely relates to rubbish power plant flying dust processing system.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
At present, the main modes of harmless treatment of the household garbage are sanitary landfill, incineration and composting. Incineration treatment shows a continuously increasing trend because of the realization of maximum reduction, heat energy utilization and small land occupation.
The ash treatment system of the waste incineration power station has the characteristics that: the ash contains harmful substances, the discharge amount is small, the discharge points are dispersed, and the like. The waste incineration power station can generate fly ash, and the fly ash contains harmful substances, so most of the fly ash treatment methods at present adopt a landfill method after solidification treatment, and the inventor finds that the method has great pollution to the environment. At present, the fly ash is also treated by acid washing, wherein the soluble components of the fly ash are washed into acid liquor, the soluble harmful substances in the treated fly ash are reduced, and the used acid liquor is neutralized and settled to concentrate and extract the harmful substances. However, the inventor finds that the fly ash is high in operation cost and investment cost when the fly ash is treated in the mode, and meanwhile, a large amount of acidic wastewater is generated in the acid pickling treatment process, so that secondary pollution is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a rubbish power plant flying dust processing system, the device can collect the flying dust of boiler and store to carry to rotary cement kiln tail combustion chamber, can carry out melting innocent treatment with the flying dust.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
in a first aspect, an embodiment of the present invention provides a waste power station fly ash treatment system, which includes a fly ash warehouse, wherein the fly ash warehouse is communicated with fly ash conveying devices of a plurality of boilers; the bottom of the fly ash storehouse is provided with an ash outlet which is connected with a bin type pump, and the bin type pump is provided with a conveying outlet which is communicated with the rotary cement kiln; the top of the fly ash storehouse is provided with a storehouse top cloth bag dust remover, the storehouse top cloth bag dust remover is communicated with an air storage tank, and the air storage tank is communicated with a compressed air source.
As a further technical scheme, the bin pump is also communicated with an air source.
As a further technical scheme, the fly ash conveying device comprises a first screw conveyor arranged at the bottom of the bag-type dust collector of the boiler, the first screw conveyor is connected with a second screw conveyor, a fly ash temporary storage bin is correspondingly arranged at the bottom of a discharge port of the second screw conveyor, the bottom of the fly ash temporary storage bin is connected with a powder feeding machine, and the powder feeding machine is communicated with a fly ash warehouse.
As a further technical scheme, the powder feeder is connected with an air blower.
As a further technical scheme, a plurality of ash hoppers are correspondingly arranged at the bottom of the bag-type dust collector and communicated with the first spiral conveyor.
As a further technical scheme, a rotary discharger is arranged at the bottom of the ash hopper.
As a further technical scheme, a gasification tank is arranged at the bottom of the fly ash storage and is connected with a gasification fan.
As a further technical scheme, an electric heater is arranged between the gasification fan and the gasification tank.
As a further technical scheme, level meters are arranged on the top and the side of the fly ash storehouse.
As a further technical scheme, the fly ash storehouse is a storage bin structure made of reinforced concrete.
Above-mentioned the utility model discloses an embodiment's beneficial effect as follows:
the utility model discloses a flying dust processing system collects the flying dust of boiler to the flying dust storehouse and stores, carries the rotary cement kiln tail combustion chamber with the flying dust via the storehouse formula pump again, can carry out melting innocent treatment with the flying dust, can not cause secondary pollution to the environment.
The utility model discloses a flying dust processing system sets up the sack cleaner at the flying dust storehouse top of storing the flying dust, and input compressed air discharges to the atmosphere again after the sack cleaner filters and reaches the emission requirement, can reduce boiler flying dust and discharge particulate matter concentration, satisfies the environmental protection requirement.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
FIG. 1 is a schematic view of a fly ash treatment system according to one or more embodiments of the present invention;
in the figure: 1 first screw conveyer, 2 second screw conveyer, 3 powder feeder, 4 air-blowers, 5 rotary dischargers, 6 bin type pumps, 7 gas storage tanks, 8 bin top bag-type dust collectors, 9 gasification fans, 10 electric heaters, 11 gasification tanks, 12 charge level indicators, 13 bag-type dust collectors, 14 fly ash storehouses, 15 compressed air sources, 16 gas sources, 17 conveying outlets, 18 ash hoppers and 19 fly ash temporary storage bins.
The spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate correspondence with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the present invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The term "connect" in the present invention should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral part; the two elements may be connected directly or indirectly through an intermediate medium, or the two elements may be connected internally or in an interaction relationship, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.
As the background art introduces, there is not enough in the prior art, in order to solve above technical problem, the utility model provides a rubbish power plant flying dust processing system.
In a typical embodiment of the present invention, as shown in fig. 1, a fly ash processing system for a garbage power station is provided, which includes a fly ash storage 14, which is communicated with fly ash conveying devices corresponding to boilers.
In this embodiment, the fly ash storage 14 is a storage structure made of reinforced concrete, and is a container for storing fly ash, and has a diameter of phi 10m and a total volume of 1000 cubic meters.
The fly ash of each boiler is transported to the fly ash warehouse by the fly ash transport device for storage, in this embodiment, three boilers are arranged, as shown in the dashed line square frame in fig. 1, the three boilers correspond to the fly ash transport device of one boiler, and the fly ash transport devices of the three boilers are arranged in parallel as shown in the left side of fig. 1;
each boiler is provided with a bag-type dust collector 13, the bottom of the bag-type dust collector 13 is correspondingly provided with a plurality of ash hoppers 18, the bottoms of the ash hoppers 18 are provided with rotary dischargers 5, the ash hoppers are communicated with a first screw conveyor 1, the first screw conveyor is connected with a second screw conveyor 2, the bottom of a discharge port of the second screw conveyor 2 is correspondingly provided with a fly ash temporary storage bin 19, and fly ash of each ash hopper is conveyed to the fly ash temporary storage bin through the rotary dischargers, the first screw conveyor and the second screw conveyor;
the bottom of the fly ash temporary storage bin 19 is connected with the powder feeder 3, the powder feeder 3 is communicated with the fly ash warehouse 14, the powder feeder 3 is connected with the air blower 4, the air blower provides high-pressure air flow, and the fly ash is conveyed to the fly ash warehouse by the powder feeder; the powder feeder adopts the existing form of air-lock feeder, and conveys the fly ash for the fly ash warehouse, which is not described again here.
The fly ash storehouse 14 is a fly ash storage storehouse, the top of the fly ash storehouse is provided with a storehouse top bag-type dust collector 8, the storehouse top bag-type dust collector is communicated with an air storage tank 7, the air storage tank 7 is communicated with a compressed air source 15, compressed air is conveyed into the fly ash storehouse and is discharged to the atmosphere after being filtered by the bag-type dust collector to meet the discharge requirement. The bag-type dust collector 8 at the top of the bin can adopt the known bag-type dust collector.
The bottom in the fly ash storehouse 14 is provided with the gasification tank 11 which is a fluidization device, so that the blockage and powder bridging can be prevented, and the production operation is prevented from being influenced. The gasification tank 11 is connected with the gasification fan 9, an electric heater 10 is arranged between the gasification fan and the gasification tank, and the electric heater heats the air provided by the gasification fan and further provides the air to the gasification tank.
The level gauges 12 are provided at the top and side of the fly ash storage 14, and the capacity of storing fly ash therein can be detected.
The bottom of the fly ash storehouse 14 is provided with an ash outlet connected with a bin pump 6, the bin pump is communicated with an air source 16, the bin pump is a pneumatic conveying device, the bin pump 6 is provided with a conveying outlet 17 communicated with the rotary cement kiln, and the fly ash belongs to dangerous solid waste and is conveyed to a kiln tail combustion chamber of the rotary cement kiln through the bin pump for melting and innocent treatment. The bin pump is an ash discharging device, adopts variable frequency speed regulation, and can regulate the ash discharging speed according to specific operation conditions.
The fly ash is conveyed to the rotary cement kiln for treatment, the effect of controlling the discharge of harmful substances is good, the operation economy is better, the secondary pollution is small, and the practicability is better.
The process flow of the fly ash treatment system of the embodiment is as follows:
the dust filtered by the filter bag of each boiler bag-type dust collector 13 is sent to the second screw conveyor 2 through the rotary discharger 5 and the first screw conveyor 1 which are respectively provided with an ash discharge port of the ash bucket 18, and the dry ash in each ash bucket is collected and transferred to a fly ash temporary storage bin 19 by the second screw conveyor 2. The fly ash is conveyed to a fly ash storehouse 14 at the outer side of the factory building through a pipeline to be stored under the action of high-pressure airflow provided by an air blower 4 through a powder feeder 3 at the lower part of a storehouse pump;
the fly ash in the fly ash storehouse is discharged through a bin pump 6 arranged below the storehouse, and the fly ash is conveyed to a kiln tail combustion chamber of the rotary cement kiln through the bin pump for melting harmless treatment.
The fly ash treatment system of the embodiment has the characteristics of reliable production and operation, low running power consumption, small pipeline abrasion and the like. The system uses about 75kW of electricity, and no water is consumed. The emission concentration of the boiler fly ash particles after ash removal treatment is about 30mg/Nm3The environment-friendly standard is achieved, and the design expectation is met.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A flying ash treatment system of a garbage power station is characterized by comprising a flying ash warehouse, wherein the flying ash warehouse is communicated with flying ash conveying devices of a plurality of boilers; the bottom of the fly ash storehouse is provided with an ash outlet which is connected with a bin type pump, and the bin type pump is provided with a conveying outlet which is communicated with the rotary cement kiln; the top of the fly ash storehouse is provided with a storehouse top cloth bag dust remover, the storehouse top cloth bag dust remover is communicated with an air storage tank, and the air storage tank is communicated with a compressed air source.
2. The waste power plant fly ash treatment system of claim 1 wherein the silo pump is further in communication with an air supply.
3. The waste power station fly ash treatment system of claim 1, wherein the fly ash conveying device comprises a first screw conveyor arranged at the bottom of a bag dust collector of the boiler, the first screw conveyor is connected with a second screw conveyor, a fly ash temporary storage bin is correspondingly arranged at the bottom of a discharge hole of the second screw conveyor, the bottom of the fly ash temporary storage bin is connected with a powder feeding machine, and the powder feeding machine is communicated with the fly ash storage bin.
4. The waste power plant fly ash treatment system of claim 3 wherein the powder feeder is connected to a blower.
5. The waste power station fly ash treatment system of claim 3, wherein a plurality of ash hoppers are correspondingly arranged at the bottom of the bag-type dust collector and communicated with the first screw conveyor.
6. The waste power plant fly ash treatment system of claim 5 wherein a rotary discharger is provided at the bottom of the ash hopper.
7. The waste power station fly ash treatment system of claim 1, wherein the bottom of the fly ash storage is provided with a gasification tank, and the gasification tank is connected with a gasification fan.
8. The waste power plant fly ash treatment system of claim 7 wherein an electric heater is provided between the gasification fan and the gasification tank.
9. The waste power station fly ash disposal system of claim 1, wherein a level gauge is provided on both the top and the side of the fly ash storage.
10. The waste power plant fly ash disposal system of claim 1, wherein said fly ash silo is a silo structure made of reinforced concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020532532.0U CN212018912U (en) | 2020-04-10 | 2020-04-10 | Garbage power station fly ash treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020532532.0U CN212018912U (en) | 2020-04-10 | 2020-04-10 | Garbage power station fly ash treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212018912U true CN212018912U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020532532.0U Active CN212018912U (en) | 2020-04-10 | 2020-04-10 | Garbage power station fly ash treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212018912U (en) |
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2020
- 2020-04-10 CN CN202020532532.0U patent/CN212018912U/en active Active
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