CN2272335Y

CN2272335Y - Step no-blocking vibration sieve for grading and feeding

Info

Publication number: CN2272335Y
Application number: CN 96241531
Authority: CN
Inventors: 刘毓智
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-01
Filing date: 1996-11-01
Publication date: 1998-01-14
Anticipated expiration: 2006-11-01

Abstract

The utility model belongs to a device for processing coal by screening and crushing in a boiler room, and the device for processing coal by screening and crushing is also suitable for screening and crushing material of a mine and a coal mine. The utility model is composed of a screen box, a support frame, a material receiving bucket, a spring, a driven shaft, an actuating mechanism, a drive shaft, a movable screen and a fixed screen, and is slickly combined with a cracker and a belt conveyer to form an integral coal crushing system. The device for processing coal by screening and crushing has the advantages that the functions of receiving material, feeding material, screening, crushing and transporting are integrated into one body, the structure is compact, and occupation area is small; a 5-ton fork truck and a grab bucket of an overhead travelling crane can be used for feeding material once, and the utility model can normally operate under a variable load which ranges from 0 to 10 tons; the device for processing coal by screening and crushing is not influenced by large coal gangues and large stone blocks in mixed coal, and is a new generation product of a coaling system in the boiler room.

Description

Step-by-step movement does not have the vibration of obstruction sub-material feeding screen

The utility model belong to solid mineral (block, powder mixture) sieve, feeding device.Be specially adapted to the processing up to standard of the coal-fired granularity in boiler room.

The coal-fired granularity requirements in boiler room is conny below 70～80% at present, 20～30%, and less than the particle of  30mm diameter.Therefore fire coal will be through screening and broken before advancing boiler, general medium small boiler room is by manually carrying out or do not carry out fragmentation, the large-sized boiler room generally adopts reciprocating feeder (22) ring hammer crusher system (24) to carry out fragmentation, does not have screening plant, and Fig. 5 is seen in its technological process.Fire coal enters the reciprocating feeder feeding by blanking bin (21), enters by conveyer belt (23) and advances the boiler coal bunker by transport tape (25) again after ring is hammered the pulverizer fragmentation into shape.The shortcoming of this system's maximum is to handle coarse coal drystone and stone implicit in the coal, maximum is awarded coal particle size below  150mm, and coal drystone and the stone that will eliminate in the present coal-fired kind more than the  150mm are impossibilities, therefore this system can't be suitable for the needs of existing coal, is prone to the accident of chute blockage and damage equipment.

The purpose of this utility model is to remedy medium small boiler room fire coal and lacks the existing defective that goes up coal equipment of blank and solution large-sized boiler room that screening is broken into complete equipment, also evenly award the shortcoming that material can not be suitable for forklift and grab bucket material loading simultaneously for overcoming the easily stifled requirement of existing vibratory sieve, tripper, sieve aperture, design a kind of step-by-step movement, do not have the vibration of obstruction sub-material charging gear, and screening, feed, pulverizing, conduct each function and combine, constitute the special-purpose coal handling system in boiler room.

Use the utility model device to remove to have overcome existing vibratory sieve, the tripper sieve aperture easily stops up, require evenly to award outside the shortcoming that material can not handle coarse coal, it can be under the varying load of 0～10T operate as normal, not only make feed, screening, pulverizing, conduction reasonably in conjunction with once finishing, do not have and stop up, floor space is little, and is simple and compact for structure, can " eat " coarse coal, can directly go up coal by 5 tons of forklifts or overhead traveling crane grab bucket is its biggest advantage.If patented product " layering coal supply apparatus " is the revolution of the greatness in boiler room, the utility model device can guarantee for it provides defeated coal.

Composition of the present utility model such as Fig. 1, Fig. 2, shown in Figure 3.Fig. 1 is the main involving vibrations of the utility model, sub-material, feeding structure schematic diagram.Fig. 2 is the side view of Fig. 1.Fig. 3 is the utility model overall work structural representation.Fig. 4 is movable comb relative fixed comb motion structure schematic diagram.The fragmentation that Fig. 5 is adopted for existing large-sized boiler room, the coal supply system schematic flow sheet.

This device by screen box (1), bracing frame (2), award among hopper (3), spring (4), driven shaft (5), separation net (12) and Fig. 2 disintegrating mechanism (13), coal conveyor structure (14) and form.Described screen box (1) relatively arranges at horizontal direction 15～25 ° of angles that tilt, and places and award below the hopper (3) and award hopper (3) and connect; It is fixing by spring (4) and bracing frame (2) to award hopper (3); The feeding mouth of outlet of screen box (1) lower end and pulverizer (13) joins; Fixing comb (10), movable (11), driving shaft (9), the driven shaft (5) of combing are installed on screen box (1), and movable (11) relative fixed comb (10) of combing moves, and whole screen box (1) bracing frame (2) relatively vibrates.

The purpose of this utility model is achieved by the following technical solution.Award hopper (3) and be located on the bracing frame (2), screen box (1) and award hopper (3) and connect by spring (4).Power from motor (8) passes through transmission mechanism (7), pass to driving shaft (9) by reductor (6) again, driving shaft (9) makes movable comb (11) do the gyration of single face axle side, and [movable comb (11) are gone up the vertical axle that prolongs that certain point " a " goes up certain point " b " around fixing comb (10) and are gone up b ' point equals offset " m " as radius circular motion, see (Fig. 4)], movable comb (11) " are jumped one every one " with fixing the comb (10) and are arranged, and look instructions for use and leave certain distance.Fixing two ends of combing are fixed on the screen box (1).

Movable comb (11) and fixing comb (10) are positioned at the top of screen box (1), and become α angle (common 18～20 °) with horizontal level.A side (the left or right) spring (4) that reductor (6) is fixed on screen box (1) not only plays the effect of supporting connection to complete machine, plays the effect to the material vibration when machine run gets up.Transmission mechanism (7) not only transmits moment of torsion reliably when complete machine is worked, and cushioning effect is arranged.

Separation net (12) places the surface of awarding hopper (3), and its effect is to allow to enter the material of pulverizer (13) leaked, otherwise is spaced.The feeding mouth of the discharging opening of screen box (1) and pulverizer (13) joins, and belt conveyer places below screen box (1) and the pulverizer (13).

Operation principle is as follows: coal is by forklift or grab bucket (3), and behind separation net (12), the coal that can enter pulverizer (13) falls (diameter is less than  300mm's) on movable comb (11) and fixing comb (10).(bulk greater than 300mm rests on the separation net (12)).

Because movable the comb motion of (11) and the vibrations of spring (4) drop on the belt conveyor (14) less than activity comb (11) and fixing coal of combing (10) spacing " δ ".Greater than the downslide of " step by step " under the effect of (11) is combed in activity of the coal of spacing " δ ", enter pulverizer (13) lining and carry out fragmentation, the coal after the fragmentation is also fallen on the belt conveyor (14) and is transported.Because this motor function of movable comb (11), make not only that coal speed is fast with Louing, and do not deposit coal and block coal in the spacing of can the assurance activity comb (11) and fixing comb (10).

Claims

1, step-by-step movement do not have stop up vibration sub-material feeding screen mainly by screen box (1), bracing frame (2), award hopper (3), spring (4), driven shaft (5), reductor (6), driving-belt (7), motor (8), driving shaft (9), fixingly comb (10), movablely comb (11), separation net (12) forms, it is characterized in that screen box (1) relatively arranges at horizontal direction 15～25 ° of angles that tilt, and place and award below the hopper (3) and award hopper (3) and connect; It is fixing by spring (4) and bracing frame (2) to award hopper (3); The feeding mouth of outlet of screen box (1) lower end and pulverizer (13) joins; Fixing comb (10), movable (11), driving shaft (9), the driven shaft (5) of combing are installed on screen box (1), and movable (11) relative fixed comb (10) of combing moves, and whole screen box (1) bracing frame (2) relatively vibrates.

2, vibration sub-material feeding screen as claimed in claim 1 is characterized in that activity is combed (11) and fixing grid section of combing (10) is arranged at interval and certain distance is arranged; Movable comb (11) drive relative fixed comb (10) by driving shaft (9) and do the gyration of axle side single face.

3, vibration sub-material feeding screen as claimed in claim 1 or 2 is characterized in that awarding hopper (3) surface a separation net (12) is installed.

4, vibration sub-material feeding screen as claimed in claim 1 or 2 is characterized in that installing a belt conveyer (14) below screen box (1) and pulverizer (13).

5, vibration sub-material feeding screen as claimed in claim 1 or 2 is characterized in that the side that reductor (6) is fixed on screen box (1) can shake with screen box (1).