CN114455216A - Lime storage and supply system of waste incineration power plant - Google Patents
Lime storage and supply system of waste incineration power plant Download PDFInfo
- Publication number
- CN114455216A CN114455216A CN202210213476.8A CN202210213476A CN114455216A CN 114455216 A CN114455216 A CN 114455216A CN 202210213476 A CN202210213476 A CN 202210213476A CN 114455216 A CN114455216 A CN 114455216A
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- Prior art keywords
- power plant
- bin body
- lime
- distribution
- oscillator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
- B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a lime storage and supply system for a waste incineration power plant, which comprises a storage part, a distribution part, a supply part and a control part. The storage part comprises a bin body, a heating assembly and a heat insulation assembly; the distribution part comprises a distribution disc, a plurality of oscillators and a plurality of shutter clapboards; the supply part comprises a Roots blower, a plurality of air inlet pipelines and a plurality of ash pipelines; the control part comprises a main controller and a first temperature detector; the first temperature detector is arranged in the bin body; the main controller is respectively and electrically connected with the oscillator, the shutter partition plate, the Roots blower, the electric heater and the temperature detector. The invention can effectively prevent lime in the storage bin from being wetted and agglomerated, and improves the overall performance of the lime storage and supply system of the waste incineration power plant by respectively controlling the oscillator, the shutter partition plate, the Roots blower, the electric heater and the temperature detector through the main controller.
Description
Technical Field
The invention belongs to the field of lime storage and supply equipment of a power plant, and particularly relates to a lime storage and supply system of a waste incineration power plant.
Background
At present, the domestic waste incineration power plants generally adopt lime to achieve the aim of deacidifying the flue gas, but no matter the semi-dry deacidification system or the dry deacidification system is adopted, the lime is stored in a storage bin for a long time and can be damped and agglomerated, the use is influenced, the maintenance workload is increased, and the economic loss is increased; and it is difficult to effectively control the amount and efficiency of lime supplied from the deacidification system, so it is a research direction to design a lime storage and supply system of a refuse incineration power plant, which can effectively prevent moisture and efficiently and controllably supply lime.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a lime storage and supply system of a waste incineration power plant, which utilizes a heating component and a heat preservation component to heat a storage bin, so that lime in the storage bin is effectively prevented from being wetted and agglomerated to influence the use, and the overall performance of the lime storage and supply system of the waste incineration power plant is improved by controlling an oscillator, a shutter partition plate, a Roots blower, an electric heater and a temperature detector through a main controller respectively.
In order to achieve the above object, a lime storage and supply system of a waste incineration plant according to an embodiment of the present invention includes a storage unit, a distribution unit, a supply unit, and a control unit.
The storage part comprises a bin body, a heating assembly and a heat insulation assembly; the bin body is a closed funnel-shaped metal bin, and the heating assembly comprises an electric tracing heating wire and an electric heater; the heat insulation assembly comprises heat insulation cotton and an outer guard plate; the electric tracing wire is uniformly wound on the outer side wall of the bin body and is electrically connected with the electric heater; the heat-insulating cotton wraps the outer side wall of the electric tracing wire, and the outer guard plate is fixedly arranged outside the heat-insulating cotton; the top of the bin body is provided with a feed inlet, and the feed inlet is provided with a sealing cover.
The distribution part comprises a distribution disc, a plurality of oscillators and a plurality of shutter clapboards; the oscillator is fixedly arranged at the middle upper part of the distribution disc, and the shutter partition plate is fixedly arranged between the oscillator and the bottom wall of the distribution disc; the distribution tray is hermetically connected with an outlet at the bottom of the bin body through a distribution pipeline.
The supply part comprises a Roots blower, a plurality of air inlet pipelines and a plurality of ash outlet pipelines; the Roots blower is connected with a first end of the air inlet pipeline, and a second end of the air inlet pipeline is connected with an air inlet of the distribution disc; the first end of the ash discharging pipeline is connected with the ash discharging port of the distribution disc, and the second end of the ash discharging pipeline is connected with the bag-type dust collector.
The control part comprises a main controller and a first temperature detector; the first temperature detector is arranged in the bin body; the main controller is electrically connected with the oscillator, the shutter partition plate, the Roots blower, the electric heater and the first temperature detector respectively.
Furthermore, the outer side wall of the bin body is provided with a plurality of fixing rings for winding and fixing the outer side wall of the bin body by the electric tracing wires.
Furthermore, the air inlet and the ash outlet are arranged in pairs.
Further, the air inlet pipeline and the ash outlet pipeline are arranged in pairs.
Further, the oscillator and the shutter partition are arranged in pairs.
Further, the oscillator and the ash outlet pipeline are arranged in a one-to-one matching mode.
Further, the air inlet pipeline is provided with a fan electric heater.
Furthermore, a second temperature detector is arranged in the air inlet pipeline, and the main controller is electrically connected with the second temperature detector.
Further, the oscillator is also connected with a frequency converter.
Further, a gate valve is arranged on the distribution pipeline.
The invention has the beneficial effects that:
1. the invention utilizes the heating component consisting of the electric heat tracing wire and the electric heater and the heat preservation component consisting of the heat preservation cotton and the outer guard plate to heat and preserve heat of the storage bin, thereby effectively preventing lime in the storage bin from being damped and agglomerated to influence the use;
1. the invention respectively controls the oscillator, the shutter partition plate, the Roots blower, the electric heater and the temperature detector through the main controller, thereby realizing the intelligent control of the lime storage and supply system and improving the overall performance of the system;
2. according to the invention, the Roots blower, the air inlet pipeline, the air inlet, the oscillator and the shutter partition plate are matched with the ash outlet and the ash outlet pipeline, so that each lime supply pipeline can independently operate, the supply amount can be independently and quantitatively controlled, and low-cost maintenance is facilitated when a single pipeline fails.
Drawings
Fig. 1 is a schematic system structure diagram of an application state of one embodiment of a lime storage and supply system of a waste incineration power plant.
In the figure:
the device comprises a bin body 1, a heating component 2, a heat insulation component 3, a Roots blower 5, an oscillator 6, a shutter partition plate 7, a gate valve 8, a distribution disc 9, a feeding hole 12, heat insulation cotton 31, an outer guard plate 32, a blower electric heater 51, an air inlet pipeline 111 and an ash outlet pipeline 112.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is further provided with reference to the accompanying drawings and examples.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in the attached figure 1, the invention provides a lime storage and supply system of a waste incineration power plant, which comprises a storage part, a distribution part, a supply part and a control part.
The storage part comprises a bin body 1, a heating component 2 and a heat insulation component 3; the bin body 1 is a closed funnel-shaped metal bin, and the heating component 2 comprises an electric tracing heating wire and an electric heater; the heat insulation component 3 comprises heat insulation cotton 31 and an outer guard plate 32; the electric tracing wires are uniformly wound on the outer side wall of the bin body 1 and are electrically connected with the electric heater; the heat insulation cotton 31 wraps and covers the outer side wall where the electric tracing wires are wound, and the outer guard plate 32 is fixedly arranged on the outer side of the heat insulation cotton 31; the top of the bin body 1 is provided with a feeding hole 12, and the feeding hole 12 is provided with a sealing cover. The bottom of the bin body 1 is fixedly provided with a conical flow distribution cap which is erected on the side wall of the bottom of the bin body 1 through a bracket and is used for preventing lime above from falling into the bin body and compacting the lime, so that the lime is not easy to be led into the distribution tray 9.
The distribution part comprises a distribution plate 9, 3 oscillators 6 and 3 shutter clapboards 7; the oscillator 6 is fixedly arranged at the middle upper part of the distribution disc 9, and the louver partition plate 7 is fixedly arranged between the oscillator 6 and the bottom wall of the distribution disc 9; the distribution tray 9 is hermetically connected with the outlet at the bottom of the bin body 1 through a distribution pipeline. The distribution pipeline is provided with a gate valve 8, and the gate valve 8 is used for completely blocking lime from falling into the distribution disc 9. The two opposite side walls of the distribution plate 9 are respectively provided with a pair of air inlet and ash outlet.
The supply part comprises a Roots blower 5, 3 air inlet pipelines 111 and 3 ash outlet pipelines 112; the Roots blower 5 is connected into the first end of the air inlet pipeline 111, and the second end of the air inlet pipeline 111 is connected with the air inlet of the distribution disc 9; the first end of the ash outlet pipe 112 is connected with the ash outlet of the distribution tray 9, and the second end of the ash outlet pipe 112 is connected with the bag-type dust collector. The distribution plate 9 is provided with mutually isolated channels inside, and a first end of each isolated channel is opened at the air inlet and a second end is opened at the ash outlet.
The control part comprises a main controller and a first temperature detector; the first temperature detector is arranged inside the bin body 1; the main controller is respectively and electrically connected with the oscillator 6, the shutter partition 7, the Roots blower 5, the electric heater and the first temperature detector.
Further, the outer side wall of the bin body 1 is provided with a plurality of fixing rings for fixing the electric tracing wires on the outer side wall of the bin body 1 in a winding way.
Further, the air inlet and the ash outlet are arranged in pairs. The air inlet pipe 111 and the ash outlet pipe 112 are arranged in pairs. The oscillator 6 is arranged in pairs with the louver 7. The oscillator 6 is matched with the ash outlet pipe 112 in a one-to-one matching way.
Further, the air intake duct 111 is provided with a fan electric heater 51. A second temperature detector is arranged in the air inlet pipeline 111, and the main controller is electrically connected with the second temperature detector.
Further, the oscillator 6 is also connected with a frequency converter.
During the actual use, lime is dropped into from feed inlet 12 at storehouse body 1 top, and lime falls on the coniform reposition of redundant personnel cap from storehouse body 1 top to storehouse body 1 bottom because of gravity down, and reposition of redundant personnel cap can prevent effectively that top lime from constantly compacting when dropping into, causes the difficult leading-in plate 9 that distributes of lime.
The lime slides down from the shunting cap and flows into a distribution pipeline through a gap between the bracket and the side wall of the bottom of the bin body 1, the gate valve 8 is opened at the moment, the lime falls on 3 oscillators 6 positioned at the middle upper part in the distribution disc 9, the main controller controls the shutters of the shutter partition plates 7 to stand up at the moment and controls the oscillators 6 to oscillate, so that the lime is vibrated down from the oscillators 6 and falls on the bottom wall of the distribution disc 9 through the shutter gaps of the shutter partition plates 7. The main controller controls the Roots blower 5 to blow air, and under the blowing of the Roots blower 5, hot air is blown into the air inlet pipeline 111, lime is blown out of the ash outlet and the ash outlet pipeline 112, and the lime is sent to an inlet flue of the bag-type dust remover of the waste incineration power plant.
Roots blower 5, income tuber pipe 111, income wind gap, oscillator 6, tripe baffle 7 and ash hole, play grey pipeline 112 are a dragon match setting, make each lime supply line independently operation to main control unit can be according to the supply capacity can be alone to every pipeline ash output quantitative control, low-cost when more being favorable to single pipeline trouble overhauls.
The electric tracing wires are uniformly wound on the outer side wall of the bin body 1 and are electrically connected with the electric heater for heating, so that the temperature of the bin body 1 of the funnel-shaped metal bin is increased, the electric heater is controlled by the main controller to heat according to the temperature measured by the first temperature measurer, so that the temperature in the lime bin is controlled to be 40-55 ℃, then the heat-preservation cotton 31 is externally coated, and the outer guard plate 32 is additionally arranged on the outer side of the lime bin for fixing, so that the bin body 1 is effectively insulated. Therefore, the constant temperature in the bin can be kept, and the caking caused by the influence of the temperature in the bin due to the change of the environmental temperature is avoided.
In addition, because the Roots blower 5 sucks ambient air, the blower electric heater 51 and the second temperature detector are additionally arranged at the outlet pipe section, and the main controller controls the temperature of the heating pipeline of the blower electric heater 51 to be between 60 and 80 ℃ according to the temperature measured by the second temperature detector.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described, and the content not described in detail in the specification belongs to the prior art known by persons skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A lime storage and supply system of a waste incineration power plant is characterized by comprising a storage part, a distribution part, a supply part and a control part;
the storage part comprises a bin body, a heating assembly and a heat insulation assembly; the bin body is a closed funnel-shaped metal bin, and the heating assembly comprises an electric tracing heating wire and an electric heater; the heat insulation component comprises heat insulation cotton and an outer guard plate; the electric tracing wire is uniformly wound on the outer side wall of the bin body and is electrically connected with the electric heater; the heat-insulating cotton wraps the outer side wall of the electric tracing wire, and the outer guard plate is fixedly arranged outside the heat-insulating cotton; a feed port is formed in the top of the bin body, and a sealing cover is arranged at the feed port;
the distribution part comprises a distribution disc, a plurality of oscillators and a plurality of shutter clapboards; the oscillator is fixedly arranged at the middle upper part of the distribution disc, and the shutter partition plate is fixedly arranged between the oscillator and the bottom wall of the distribution disc; the distribution disc is hermetically connected with an outlet at the bottom of the bin body through a distribution pipeline;
the supply part comprises a Roots blower, a plurality of air inlet pipelines and a plurality of ash outlet pipelines; the Roots blower is connected with a first end of the air inlet pipeline, and a second end of the air inlet pipeline is connected with an air inlet of the distribution disc; the first end of the ash discharging pipeline is connected with the ash discharging port of the distribution disc, and the second end of the ash discharging pipeline is connected with the bag-type dust collector;
the control part comprises a main controller and a first temperature detector; the first temperature detector is arranged in the bin body; the main controller is electrically connected with the oscillator, the shutter partition plate, the Roots blower, the electric heater and the first temperature detector respectively.
2. The lime storage and supply system of a refuse burning power plant according to claim 1, wherein the outer side wall of the bin body is provided with a plurality of fixing rings for winding and fixing the electric tracing wire on the outer side wall of the bin body.
3. The lime storage feed system of a refuse burning power plant of claim 1, wherein the air inlet and the ash outlet are provided in pairs.
4. The waste incineration power plant lime storage feed system of claim 1, wherein the inlet duct and the outlet duct are paired.
5. The waste incineration power plant lime storage feed system of claim 1, wherein the oscillator and the shutter diaphragm are arranged in pairs.
6. The waste incineration power plant lime storage feed system of claim 1, wherein the oscillator is arranged to match the ash discharge conduit on a one-to-one basis.
7. The waste incineration power plant lime storage feed system of claim 1, wherein the air intake duct is provided with a wind turbine electric heater.
8. The lime storage and supply system of a refuse incineration power plant according to claim 1, characterized in that a second temperature detector is arranged in the air inlet pipe, and the main controller is electrically connected with the second temperature detector.
9. The lime storage feed system of a refuse burning power plant according to claim 1, characterized in that a frequency converter is further connected to the oscillator.
10. The lime storage feeding system of a refuse burning power plant according to claim 1, characterized in that a gate valve is provided on the distribution pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210213476.8A CN114455216B (en) | 2022-03-04 | 2022-03-04 | Lime storage and supply system for waste incineration power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210213476.8A CN114455216B (en) | 2022-03-04 | 2022-03-04 | Lime storage and supply system for waste incineration power plant |
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| Publication Number | Publication Date |
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| CN114455216A true CN114455216A (en) | 2022-05-10 |
| CN114455216B CN114455216B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210213476.8A Active CN114455216B (en) | 2022-03-04 | 2022-03-04 | Lime storage and supply system for waste incineration power plant |
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| Publication number | Publication date |
|---|---|
| CN114455216B (en) | 2023-08-29 |
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