CN1069753C - Rotary coal feeder - Google Patents
Rotary coal feeder Download PDFInfo
- Publication number
- CN1069753C CN1069753C CN 93111587 CN93111587A CN1069753C CN 1069753 C CN1069753 C CN 1069753C CN 93111587 CN93111587 CN 93111587 CN 93111587 A CN93111587 A CN 93111587A CN 1069753 C CN1069753 C CN 1069753C
- Authority
- CN
- China
- Prior art keywords
- hopper
- rotary body
- coal
- rotary
- transmission shaft
- Prior art date
- 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
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The present invention relates to a rotary coal feeder which is used for preparing and feeding coal in the process of conveying coal in fuel electric plants and coal mines. In the coal feeder, an open type material tank 7 and a transmission shaft 6 connected by a bearing and a bearing seat 4 are arranged on a base 14 with a tilt angle alpha; a dispersion type double-head screw rotary body 9 is arranged on the transmission shaft, and one end of the transmission shaft is provided with a cycloidal pinwheel decelerator 13. The upper part of the material tank is connected with a material storing chamber 16, and the lower part is connected with a conveying rubber belt 1. The feeder has the advantages of simple and compact structure, convenient installation and maintenance, low cost and high efficiency, can continuously feed materials and has little possibility of blocking.
Description
The present invention is a kind of rotary coal feeder, is specially adapted to fire and does the coal blending in carrying the coal process of power plant and colliery, the rotary coal feeder that coal supply is used.
At present, the coal blending coal supply equipment that thermal power plant and colliery are selected, external as GE, MIT, advanced countries such as Italy, Switzerland, domestic as Electric Power Design Institute such as East China, northwest, northeast, south China, and selected coal blending, the coal supply equipment in thermal power plant that moves at present, outer is coal supply, coal blending machineries such as bent axle is reciprocating type, impeller clearance type, buried scraper, Electromagnetically vibrating.Reciprocating structure heaviness, wasted work rate are big, because of being interrupted coal supply, conveyer belt and motor are impacted again; The clearance type construction investment is huge, and operation maintenance work is big; Scraper-type is heaviness but also fragile not only; Electromagnetically vibrating changes in the big large and medium-sized near coal-mine power plant very easily chute blockage and burns solenoid in coal, and electric and magnetic oscillation produces nearly 120 decibels noise and has a strong impact on the healthy of field personnel.Above-mentioned several coal blending, coal supply equipment cause in various degree threat for the safety in production of power plant.
The objective of the invention is to design a kind of simple in structure, compact, unit is in light weight, cost is low, installation and maintenance are convenient, effect is high, noise is little, adapt to coal changes and stop up greatly and not; rotary coal feeder safe and reliable to operation; substitute above-mentioned several common equipments, to guarantee the safety in production in thermal power plant and colliery.
Fig. 1 is the overall construction drawing of feeder.
Fig. 2 is that the feeder rotary body turns to selection figure.
Marking sequence number in the accompanying drawings is expressed as follows respectively:
1, carries adhesive tape 2, support frame 3, running direction indicator 4, bearing and bearing block 5, blanking port 6, power transmission shaft 7, hopper 8, fixture 9, double threaded screw rotary body 10, feed hopper 11, drive plate 12, flexible clutch 13, cycloidal planetary gear speed reducer 14, support 15, material blanking tube 16, storage bin.
Below in conjunction with accompanying drawing technical scheme of the present invention is described.
The present invention has powerful propulsive force and the design of steady characteristics of high efficiency according to the worm screw oil pump.Wanting on support 14 center lines by dress by two bearings and bearing block 4 by poor 7, the power transmission shafts 6 of dress opened type material on the support 14 that has a angle of inclination.Double threaded screw rotary body 9 (be called for short down rotary body) with double end end chain directly be bumped on the drive plate 11 two breach chains poor in and fixture 8 fastening methods be installed on the power transmission shaft 6.This rotary body 9 flows are big, the work balance, and this fastening positioning mode is simple in structure, and dismounting is easy to maintenance.The twin-feed spiral angle of rotary body adopts level and smooth incremental method to make diffused.Rotary body 9 is the 50-60 millimeter with the distance of poor 7 bottoms of material, to form a scuff-resistant coating, rotary body 9 be arranged on hopper 7 directly over, rotary body 9 is the 50-60 millimeter with the distance of hopper bottom, contacts friction with hopper to prevent rotary body, when work, the coal seam of 50-60 millimeters thick is arranged between rotary body and the hopper bottom, and like this, rotary body does not directly contact with hopper, constitute the scuff-resistant coating between rotary body and the hopper, improve the service life of hopper.The uncovered size on the uncovered plane of hopper is that 2-2.5 is than 1, in case the stops material is stuck at the place, both sides with the rotary body diameter ratio.The uncovered size on the uncovered plane of hopper is meant the width dimensions that uncovered plane is suitable for reading, i.e. the distance of hopper both sides between suitable for reading.Cycloidal planetary gear speed reducer 13 is connected power transmission shaft 6 one ends by flexible clutch 12, the power transmission shaft other end indicates the traffic direction that running direction indicator 3 can be known the indication batcher, batcher turn to the left-handed and dextrorotation of branch, so that the designer has levoform or dextrorotation formula according to the situation design choosing of production scene, its system of selection is that P1 direction and rotary body turn to forward, to lower the power attenuation of axle system.With power transmission shaft 6, rotary body 9, reductor 13 all becomes with horizontal plane-a inclination angle with the axle system and the material poor 7 of bearing and bearing block 4 compositions.This structure can be improved the flowability of material and the axial thrust of balance rotating body.Support frame 2 generally is made up of steel structure frame and is supported on conveying adhesive tape 1 top, and material falls into by blanking port 5 and carries adhesive tape 1, and supplied materials connects feed hopper 10 and storage bins 16 by material blanking tube 15.
Feeder of the present invention is simple and compact for structure, and unit is in light weight, and cost is low, installation and maintenance are convenient, the power height, and noise is little, adapt to the coal variation and stop up greatly and not, safe and reliable to operation, and can be designed to series of products of all sizes according to the needs in each power plant and colliery.
Claims (4)
1, a kind of thermal power plant and the colliery rotary coal feeder that the coal blending coal supply is used in carrying the coal process is characterized in that going up installation hopper (7) at support (14); One is phoresied axle (6) and is installed on the support center line by two bearings and bearing block (4), double threaded screw rotary body (9) directly is installed on the power transmission shaft (6), cycloidal planetary gear speed reducer (13) is connected on the power transmission shaft (6) by flexible clutch (12), connect storage bin (16) by material blanking tube (15) above the hopper (7), the following blanking port (5) of hopper (7) is over against carrying adhesive tape (1).
2, rotary coal feeder according to claim 1 is characterized in that power transmission shaft (6), rotary body (9), and reductor (13) all becomes with horizontal plane-a inclination angle with the axle system and the hopper (7) of bearing and bearing block (4) composition.
3, rotary coal feeder according to claim 1 is characterized in that hopper (7) is an opened type, rotary body (9) is the 50-60 millimeter with the distance of hopper bottom, rotary body (9) be arranged on hopper (7) directly over, rotary body (9) is the 50-60 millimeter with the distance of hopper bottom, to prevent that rotary body from contacting friction with hopper, when work, the coal seam that the 50-60 millimeters thick is arranged between rotary body and the hopper bottom, like this, rotary body with directly do not contact for groove, constitute the scuff-resistant coating between rotary body and the hopper, improve the service life of hopper.The width dimensions on the uncovered plane of hopper and rotary body diameter ratio be 2-2.5 than 1, the uncovered size on the uncovered plane of hopper is meant the width dimensions that uncovered plane is suitable for reading, i.e. the distance of hopper both sides between suitable for reading.
4, feeder according to claim 1, the twin-feed spiral angle that it is characterized in that double threaded screw rotary body (9) adopt level and smooth incremental method to be made into diffused, and its direction of rotation can be left-handed type, also can be dextroform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111587 CN1069753C (en) | 1993-07-20 | 1993-07-20 | Rotary coal feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111587 CN1069753C (en) | 1993-07-20 | 1993-07-20 | Rotary coal feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1097856A CN1097856A (en) | 1995-01-25 |
| CN1069753C true CN1069753C (en) | 2001-08-15 |
Family
ID=4989354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111587 Expired - Fee Related CN1069753C (en) | 1993-07-20 | 1993-07-20 | Rotary coal feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1069753C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533283A (en) * | 2011-12-31 | 2012-07-04 | 山西沁新能源集团股份有限公司 | Associated hydraulic spiral automatic coal receiving device of clean heat recovery coke oven |
| CN112398177B (en) * | 2020-11-30 | 2023-02-24 | 国网新疆电力有限公司电力科学研究院 | Method for obtaining flexible coal feeding instruction of supercritical or ultra-supercritical thermal power generating unit |
-
1993
- 1993-07-20 CN CN 93111587 patent/CN1069753C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1097856A (en) | 1995-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GAO JINDI Free format text: FORMER NAME OR ADDRESS: LIYANG CITY ELECTRIC POWER MACHINERY FACTORY, JIANGSU PROV. |
|
| CP03 | Change of name, title or address |
Address after: 273522 Shandong province Zouping county power plant retirement Office Patentee after: Gao Jindi Address before: 213331 Dai Town, Jiangsu, Liyang Patentee before: Liyang City Electric Power Machinery Factory, Jiangsu Prov. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |