CN205574889U - Screening formula scraper blade conveyor - Google Patents

Screening formula scraper blade conveyor Download PDF

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Publication number
CN205574889U
CN205574889U CN201620222146.5U CN201620222146U CN205574889U CN 205574889 U CN205574889 U CN 205574889U CN 201620222146 U CN201620222146 U CN 201620222146U CN 205574889 U CN205574889 U CN 205574889U
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CN
China
Prior art keywords
cell
hole
steel plate
steel sheet
scraper blade
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620222146.5U
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Chinese (zh)
Inventor
张全胜
Original Assignee
张全胜
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张全胜 filed Critical 张全胜
Priority to CN201620222146.5U priority Critical patent/CN205574889U/en
Application granted granted Critical
Publication of CN205574889U publication Critical patent/CN205574889U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a screening formula scraper blade conveyor, it includes that it includes cell body on -edge steel sheet, scraper blade, chain, sprocket, cell body bottom steel sheet, speed reduction and drive arrangement, feeder hopper, play hopper, carefully expects the hole that a hopper, cell body bottom steel sheet opened, characterized by: opening the hole that the diameter be 10mm on the steel sheet of scraper blade conveyor's cell body bottom, opening hole area and be whole cell body bottom steel sheet, the centre -to -centre spacing between each hole all is 20mm, and the trompil all is bell mouth upper surface aperture to be 10mm lower surface aperture be 12mm on the steel sheet bottom the cell body. A hopper ejection of compact is expected by thin to thin material. The coarse fodder is discharged by former hopper. Drive arrangement adopts the reducer motor all -in -one.

Description

A kind of screening type scraping plate conveying device
Technical field
This utility model relates to power station and the coal of other industry, gangue, the screening plant of rubble head, especially relates to a kind of sieve Fraction scraping plate conveying device.
Background technology
China has been to have the country that coal gangue power generation factory is most in the world the most, and the main upstream equipment of coal gangue power generation is circulation Fluidized-bed combustion boiler (abbreviation CFB boiler), China has 3000 multiple stage at present and adds up to 90000MW CFBB, wherein The large-size circulating fluidized bed station boiler of 440t/h grade has 300 multiple stage, and the large-size circulating fluidized bed station boiler of more than 1025t/h has 100 multiple stage (also 50 multiple stage are being built).
CFBB can burn various colm, gangue, and enter these fuel of stokehold must be crushed to particle diameter is 10mm And following design standard.It is that 10mm is the most in small, broken bits that material is crushed to particle diameter.Coal after in small, broken bits is referred to as as-fired coal, enters In stove coal, particle diameter is that the share of below 0.5mm is the smaller the better, and particle diameter is that the coal grain of below 0.5mm stops in CFBB Stay time the shortest not yet burning just to be taken away by wind, cause boiler combustion efficiency to reduce and energy waste.Coal gangue power generation factory of China mesh In the raw coal of front use, particle diameter is that below 10mm has accounted for about 50%, and in this part duff, particle diameter is the coal grain institute of below 1mm Account for share the biggest, if sieved separation but fully enter crusher in crushing will for the duff not to below particle diameter 10mm Cause as-fired coal meticulous.If not designing raw coal screening system, raw coal only enters coal breaker and entirely pulverizes, and this increases not only and sets Alternative type, and add power consumption and wear and tear in machines, maximum consequence is to produce Fragmentation Phenomena to make the coal of entrance boiler meticulous.
Currently, the CFB boiler in a large amount of power station of China is not provided with raw coal direct dusting cover separating device, and raw coal does not first passes through dusting cover and just divides Crush, there is serious Fragmentation Phenomena excessively when raw coal size is less, and coal dust amount is greatly increased.The supporting CFB now run The fine crusher coal feed point of boiler does not the most design dusting cover, have to entirely crush the raw coal that granularity is the least thus occur breaking Broken phenomenon.It is that people are accustomed to being mistakenly considered easily to block sieve aperture when moisture content of coal is bigger that fine crusher entrance does not the most design the reason of sieve.
The problem that ratio that coal gangue power generation factory of as-fired coal meticulous problem China CFBB presently, there are is more serious, screening type Scraping plate conveying device aims at this difficult problem of solution and designs, it is achieved that to having of the duff that particle diameter in raw coal is below 10mm Effect separate, this device to raw coal moisture bigger time do not block.
Screening type scraping plate conveying device equally can use in the power plant of pulverized-coal fired boiler, and such power plant whole nation has 900,000,000 kilowatts, sieve Bulky grain pebble coal can be separated by fraction scraping plate conveying device in disintegrating machine outlet, alleviates abrasion and the power consumption of coal pulverizer, Increase exerting oneself of coal pulverizer.The total generating set in power station, the whole nation has 1,000,000,000 kilowatts, promotes screening type scraping plate conveying device in power station, the whole nation After by make the whole nation power plant disintegrating machine power consumption all decline 10-15%, the generator installation amount that can save reaches 300,000 kilowatts.
Summary of the invention
This utility model purpose is to provide a kind of screening type scraping plate conveying device, it include the edge-on steel plate of cell body, scraper plate, chain, Bottom sprocket wheel, cell body, steel plate is opened bottom steel plate, deceleration and driving means, feed hopper, discharge bucket, fines discharge bucket, cell body Hole, it is achieved being that below 10mm granule efficiently separates to particle diameter in raw coal, raw coal moisture does not blocks time bigger.It is characterized in that: Opening the hole of a diameter of 10mm bottom the cell body of scraping plate conveying device on steel plate, opening area is steel plate bottom whole cell body, each Centre-to-centre spacing between hole is all 20mm, and bottom cell body, on steel plate, institute's perforate is all bellmouth upper surface aperture is 10mm following table face Footpath is 12mm.
For achieving the above object, this utility model takes following technical proposals:
1, a kind of screening type helix transporting device, it include steel plate bottom the edge-on steel plate of cell body, scraper plate, chain, sprocket wheel, cell body, Slow down and the hole opened of steel plate bottom driving means, feed hopper, discharge bucket, fines discharge bucket, cell body;
2, bottom the cell body of scraping plate conveying device, on steel plate, open the hole of a diameter of 10mm;
3, opening area is steel plate bottom whole cell body;
4, the centre-to-centre spacing between each hole is all 20mm;
5, bottom cell body on steel plate institute's perforate be all bellmouth upper surface aperture be 10mm lower surface aperture be 12mm;
6, fines is by fines discharge bucket discharging.
7, coarse fodder is discharged by former discharge bucket.
8, driving means uses decelerator motor integral machine.
The excellent feature of technology of the present utility model is:
Achieving particle diameter in raw coal is that below 10mm granule efficiently separates, this device to raw coal moisture bigger time do not block.
Accompanying drawing explanation
Fig. 1 is the common scraping plate conveying device front view schematic diagram not having screening function.
Fig. 2 is the common scraping plate conveying device top view schematic diagram not having screening function.
Fig. 3 is this utility model one screening type scraping plate conveying device front view schematic diagram.
Fig. 4 is this utility model one screening type scraping plate conveying device top view schematic diagram.
This utility model one screening type scraping plate conveying device A that Fig. 5 is is to sectional view schematic diagram.
Detailed description of the invention
As Figure 1-Figure 5, a kind of screening type scraping plate conveying device described in the utility model, it comprises the steps:
1, a kind of screening type scraping plate conveying device, it includes at the bottom of the edge-on steel plate of cell body 1, scraper plate 2, chain 3, sprocket wheel 4, cell body The hole 10 that bottom portion's steel plate 5, deceleration and driving means 6, feed hopper 7, discharge bucket 8, fines discharge bucket 9, cell body, steel plate is opened;
2, bottom the cell body of scraping plate conveying device, on steel plate 5, open the hole of a diameter of 10mm;
3, opening area is steel plate 5 bottom whole cell body;
4, the centre-to-centre spacing between each hole is all 20mm;
5, bottom cell body on steel plate 5 institute's perforate be all bellmouth upper surface aperture be 10mm lower surface aperture be 12mm;
6, fines can be arranged belt conveyor seen off by fines by fines discharge bucket 9 discharging, bottom.
7, coarse fodder is discharged by former discharge bucket 8, and oarse-grained coarse fodder can be seen off by compact spiral conveyer or small belt.
8, driving means uses decelerator motor integral machine.
The various embodiments described above can some changes in addition under without departing from scope of the present utility model, therefore above explanation is comprised and attached Structure shown in figure should be regarded as exemplary, and is not used to limit claim of the present utility model.

Claims (3)

1. a screening type scraping plate conveying device, it include it include the edge-on steel plate of cell body (1), scraper plate (2), chain (3), Steel plate (5), deceleration and driving means (6), feed hopper (7), discharge bucket (8), fines discharging bottom sprocket wheel (4), cell body The hole (10) that bottom bucket (9), cell body, steel plate is opened, is characterized in that: open on steel plate (5) bottom the cell body of scraping plate conveying device The hole of a diameter of 10mm, fines is discharged by former discharge bucket (8) by fines discharge bucket (9) discharging, coarse fodder.
A kind of screening type scraping plate conveying device the most according to claim 1, is characterized in that, opening area is at the bottom of whole cell body Portion's steel plate (5), the centre-to-centre spacing between each hole is all 20mm.
A kind of screening type scraping plate conveying device the most according to claim 1, is characterized in that, steel plate (5) bottom cell body The perforate of upper institute be all bellmouth upper surface aperture be 10mm lower surface aperture be 12mm.
CN201620222146.5U 2016-03-23 2016-03-23 Screening formula scraper blade conveyor Expired - Fee Related CN205574889U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620222146.5U CN205574889U (en) 2016-03-23 2016-03-23 Screening formula scraper blade conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620222146.5U CN205574889U (en) 2016-03-23 2016-03-23 Screening formula scraper blade conveyor

Publications (1)

Publication Number Publication Date
CN205574889U true CN205574889U (en) 2016-09-14

Family

ID=56865763

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620222146.5U Expired - Fee Related CN205574889U (en) 2016-03-23 2016-03-23 Screening formula scraper blade conveyor

Country Status (1)

Country Link
CN (1) CN205574889U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106378304A (en) * 2016-11-04 2017-02-08 云南中翼鼎东能源科技开发有限公司 Separating device applicable to viscosity materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106378304A (en) * 2016-11-04 2017-02-08 云南中翼鼎东能源科技开发有限公司 Separating device applicable to viscosity materials

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Addressee: Zhang Quansheng

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160914

Termination date: 20170323