CN2035346U

CN2035346U - Built-in scraper coal conveyer

Info

Publication number: CN2035346U
Application number: CN 88216759
Authority: CN
Inventors: 田思羽; 姜运海
Original assignee: SHENYANG POWER MACHINERY PLANT
Current assignee: SHENYANG POWER MACHINERY PLANT
Priority date: 1988-08-09
Filing date: 1988-08-09
Publication date: 1989-04-05

Abstract

The utility model relates to a built-in scraper coal conveyer, adopting a single chain formed in casting or welding way whose both sides is provided with scrapers. The angles of the scrapers divide into two types of horizontally verticality or inclination, and the built-in scraper coal conveyer is provided with an inserted-rod type coal gate and a coal bed adjuster. The utility model has the advantages of high strength, simple structure, rational stress, favorable working performance, easy opening and closure and homogeneous coal supply. A welding box body and a sealing device installed on the opening part of the box body greatly improve the sealing performance of equipment and can reduce the environment pollution caused by the dust. The box body and shaft ends are provided with alarm devices which can make alarm for coal conveying stopping, coal lack, chain breaking and locked rotation, and thus, the self control degree and the working performance of the built-in scraper coal conveyer can be further improved.

Description

Built-in scraper coal conveyer

What the utility model related to the coal conveyor tool, particularly a kind of new structure used a kind of coal-burning power plant buries the scraper plate feeder.

The existing scraper plate feeder that buries is made up of casing and flight chain, flight chain adopts double die forging chain, the one-sided scraper plate that has, because one-sided scraper plate makes chain unbalance stress and double strand chain transport outward asynchronous, often fall chain and chain rupture phenomenon, the single strand chain that adopts the bilateral belt scraping plate is also arranged, but its chain bar is a steel plate to bend and forms, tension and bending strength are lower, cause the chain bar to be broken and scraper plate fractures or crooked, make equipment operation unreliable, no matter existing be double or one-rank flight chain, equal and the horizontal vertical of the angle of scraper plate, the therefore phenomenon of in operational process, floating on the normal generation scraper plate.

It is existing that what bury that the scraper plate feeder adopts is the board plug type coal gate, this gate structure complexity opens and closes difficulty, and the leak free requirement is not considered in the design of casing in addition, casing for screw attachment, and connection place and opening part be all less than sealing, so leak tightness is very poor, and dust leakage when causing work, environment is caused serious pollution, the transmission adopted mechanical stepless speed-regulating makes the structure more complicated, and cost is very high.

What the purpose of this utility model was to provide a kind of new structure buries the scraper plate feeder, and it is reliable, and is simple in structure, and good airproof performance.

The purpose of this utility model is achieved in that flight chain adopts the single strand chain of bilateral belt scraping plate, and chain is inblock cast or welding fabrication.For preventing to float on the scraper plate, the form that adopts the inclination scraper plate to combine with vertical scraper plate, promptly scraper plate be divided into horizontal vertical with become two kinds at angle of inclination with level.Because the inclination scraper plate is subjected to the downward pressure of material, thus scraper plate be positioned among the material all the time, and can not be floating on it.The feeding mouth of casing is equipped with the inserted-link type gate, for improving the leak tightness of casing, adopts the welding casing, and the adjustment that the connection place between each section casing and the opening part of casing all are equipped with sealing arrangement speed realizes by electromagnetic adjustable speed motor.The utility model also is equipped with the coal seam setting device, and it can make feed even.

The utility model is owing to adopted the single strand chain of the bilateral belt scraping plate of casting or welding fabrication, the intensity of chain is improved, stressing conditions improves, and owing to adopted the inclination scraper plate and the coal seam setting device be installed, the serviceability of equipment is improved, the sealing arrangement of installing on the casing of welding and the casing, can prevent effectively that dust from leaking, reduce environmental pollution, replaced mechanical stepless speed-regulating system and board plug type gate with electromagnetic adjustable speed motor and inserted-link type gate, device structure is simplified, cost reduces, and gate opening/closing is easy, in sum, the utility model favorable working performance, reliable, free from environmental pollution, and simple in structure, cost is low.

For the utility model reliability of operation is further improved, has higher automatically-monitored and operational degree simultaneously, the utility model can also be equipped with stall, chain rupture warning device and disconnected coal, few coal warning device, stall chain rupture warning device is made up of signal emission device and receiving converter.Feedway sends light or magnetic signal, receives and convert to electric signal output by photosensitive tube, dry reed tube, Hall unit or other photoelectricity or magnetoelectric conversion element, and disconnected coal, few coal warning device are made up of travel switch and trigger mechanism thereof.When material normally passed through, trigger mechanism was subjected to the application force of material and contact and travel switch is thrown off, and when disconnected coal, few coal phenomenon took place, application force reduced or disappears, and the contact of trigger mechanism is triggered travel switch, thereby makes alarm circuit send warning.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is a general illustration of the present utility model.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is the chain structure scheme drawing of the vertical scraper plate of bilateral band of casting.

Fig. 4 is the chain structure scheme drawing of the bilateral band inclination scraper plate of casting.

Fig. 5 is a coal seam control apparatus structural representation.

Fig. 6 is stall, chain rupture warning device structural representation.

Fig. 7 is that the A of Fig. 6 is to view.

Fig. 8 is disconnected coal, few coal warning device structural representation.

With reference to Fig. 1～8, the concrete structure of present embodiment is elaborated.

Present embodiment comprises casing and flight chain, casing is by head casing 1, inlet point casing 4 intermediate regulations casings 6 and discharging opening casing 7 are formed, be welded with a dividing plate 22 in the middle part of inlet point casing 4 level, material drops on the dividing plate 22 from inlet point, scrape through flight chain 5 on the base plate of head casing 1, export to discharging opening by flight chain 5 scraping deliveries again, scrape on this and scrape down the mode of operation that combines and scrape returning the coal phenomenon and avoiding down scraping the impact of coal that the formula coal inlet falls into of formula on overcoming chain, flight chain 5 adopts single strand chain, integral casting forming, the both sides belt scraping plate of chain bar is for preventing to float on the flight chain 5, the form that adopts vertical scraper chain as shown in Figure 3 and Figure 4 to combine with the inclination scraper chain, after being several groups of vertical scraper chains of every installation, one group of inclination scraper chain is installed.The coal-in port of casing is equipped with inserted-link type gate 3, and inserted-link type gate 3 is made up of housing 12 and inserted link 13, and a socket bar 13 forms gate one by the side level insertion respectively of housing 12, and the front end of inserted link 13 is pointed, therefore opens and closes easily.As shown in Figure 2, in the insertion end of inserted link 13, housing 12 has long supporting-point to it, and to guarantee the stability of inserted link 13, for improving the sealing property of equipment, asbestos mat is equipped with in the connection place between each section of casing.Rubber pad is equipped with at the place, inserted link hole of coal gate, and each inspection opening and hand hole door periphery are equipped with rubber gasket.Adopt mechanical labyrinth packing and felt leak free combination sealing mode in the passive axial end of mechanically operated master.For coal can be exported equably, coal seam regulating control 8 is housed on inlet point casing 4.Coal seam regulating control 8 constitutes by regulating plate 25, regulates plate 25 and is installed on the coal inlet casing 4 by bolt 24, can adjust by bolt 24 with the vertical distance H of dividing plate 22, and is an amount of to guarantee the coal that is passed through thus.Regulate on the plate 25 handle 26 is installed, adopt electromagnetic adjustable speed motor 10 to drive flight chain 5, and realize the stepless adjustment of its speed by drop-gear box 9.At the output shaft axle head stall is housed, chain rupture warning device 11, it is by the circular grating 19 that is installed in the output axle head, by fixing Photoelectric Detection 18 composition of guard shield 21 and bearing seat, Photoelectric Detection 18 takes the shape of the letter U, its two end is positioned at the both sides of circular grating 19, one end is equipped with light-emitting diode, and the other end is equipped with electro-optical tubes, when circular grating 19 and output shaft together rotate, what photosensitive tube was received is impulse singla, and when stall takes place, during the chain rupture phenomenon, output shaft does not rotate, therefore the signal of electro-optical tubes reception and output is a constant signal or does not have signal, alarm circuit can in time send alerting signal, also can adorn a magnet on output shaft, and fixedly lay a magnetoelectric conversion element on bearing seat or casing, realize stall as dry reed tube or Hall unit, the warning of chain rupture.

Disconnected coal, few coal warning device 2 also are housed on the coal inlet casing 4, and it is by travel switch 14, contact 15, axle 16 and push rod 17 are formed, contact 15,

axle

16 and 17 is fixed together, when the equipment normal operation, operating coal produces a kind of thrust to push rod 17, it is lifted along the direction of arrow, and contact 15 can not touch travel switch 14, and when few coal or the generation of disconnected coal phenomenon, push rod 17 falls, and drives contact 15 travel switch 14 is triggered.

Of the present utility modelly bury the conveying that Scraper also is applicable to other bulk material.

Claims

1, a kind of scraper plate feeder that buries, it comprises casing, flight chain, and driving system is characterized in that:

1., flight chain is single strand chain, the both sides of chain bar have scraper plate, are integral casting forming or welding fabrication, scraper plate be with horizontal vertical and with two kinds of forms of horizontal tilt.

2., coal-in port is equipped with the inserted-link type gate, it is made up of housing that is installed in coal-in port and the socket bar that inserts from the housing side.

3., employing is welded casing, and at each section connection part and other opening part of casing sealing arrangement is housed.

4., the coal seam regulating control is housed on the casing, it is to be made of the adjusting plate that is installed in by bolt on the casing.

2, the scraper plate feeder that buries according to claim 1 is characterized in that being equipped with on the casing disconnected coal, few coal warning device, and it is made up of travel switch and trigger mechanism, and trigger mechanism is by the contact that is fixed as one, and axle and push rod are formed.

3, the scraper plate feeder that buries according to claim 1 is characterized in that being equipped with on the output shaft stall, the chain rupture warning device.

4, the scraper plate feeder that buries according to claim 3, it is characterized in that stall, the chain rupture warning device is made up of circular grating that is installed in the output axle head and the U-shaped Photoelectric Detection head of fixedly laying, and the two ends of detection head are positioned at the grating both sides, one end is equipped with luminotron, and the other end is equipped with electro-optical tubes.

5, the scraper plate feeder that buries according to claim 3 is characterized in that stall, chain rupture warning device be made up of the magnetoelectricity detection head that is installed in the magnet on the output shaft and fixedly lay, and the magnetoelectricity detection head is made of dry-reed tube or Hall unit.