CN2184484Y

CN2184484Y - Hammer vertical fine cracker

Info

Publication number: CN2184484Y
Application number: CN 94228156
Authority: CN
Inventors: 管英俊; 金时维; 李晓球; 罗仲仁; 丛雅琴; 陈桂春
Original assignee: SHENYANG POWER MACHINERY GENERAL PLANT
Current assignee: SHENYANG POWER MACHINERY GENERAL PLANT
Priority date: 1994-03-28
Filing date: 1994-03-28
Publication date: 1994-12-07
Anticipated expiration: 2004-03-28

Abstract

The utility model relates to a hammer vertical fine cracker which is a cracking machine that can carry out fine cracking on materials with medium hardness. The hammer vertical fine cracker is mainly composed of an electrical motor 1, a rotor 4, hammer heads 9, a shell 13, etc., wherein, a plurality of hammer heads that can carry out multiple-stage cracking on materials are installed on the rotor which has a vertical structure. The inner wall of the cylindrical shell is provided with a stair-shaped lining plate 14 that has ribs, while the inner wall of the truncate regular conical shell is also provided with a lining board that has ribs. The hammer vertical fine cracker which can enhance the effect of cracking and intensify the flowability of materials has favorable adaptation performance to the variety and the moisture content of materials with less occurrence of clogging.

Description

Hammer vertical fine cracker

The utility model relates to a kind of crushing mechanism, is applicable to that particularly power plant is to the vertical fine crusher of the hammering of raw coal fragmentation.

Power plant adopts a kind of novel fluid bed fluidized bed furnace at present, this stove requires the granularity of coal smaller or equal to 8 millimeters, and require to reach certain particle characteristics according to coal and boiler structure, and the crushing system that is adopted in the domestic fuel preparation system is to the bad adaptability of moisture content and coal, it is poor that randomness finished product granularity is adjusted function, therefore has to adopt the heated-air drying sorting or sieve broken in conjunction with waiting relatively system of complexity.

The present ring hammer crusher that generally uses, its goods granularity is controlled by the gap and the sieve plate hole size of tup and crushing shell.This control granularity mode is influenced by material viscosity and moisture content, and the sieve pore blockade phenomenon greatly, easily takes place in its disposal ability variation, and adjusts particle characteristics (the granularity segmentation proportion of composing feature) difficulty that function is poor, reach regulation at random.

The purpose of this utility model provides the vertical fine crusher of a kind of novel hammering, is suitable for the requirement of fluid bed fluidized bed furnace on particle size after cracking, and material is directly boiler of feeding burning after fragmentation.

The purpose of this utility model is achieved in that the utility model mainly is made up of casing, rotor, support, motor and transmission device.Its general structure is vertical rotary structure, and promptly a kind of design is the garden column construction, and another kind of design is truncate positive taper structure.Rotor adopts vertical, and main shaft is provided with multistage tup, and the progression of tup can be set according to concrete needs, and the utility model adopts 10 grades, and the scope of attack of tup and vertical guide have 10 °-15 ° angle, and tup adopts bearing pin to connect with disk.The inwall of cylindrical Shell is equipped with the stairstepping liner plate, and the fin angled with vertical arranged on liner plate, and the gap between liner plate and the tup is down gradually little from the crusher chamber feeding mouth, makes crusher chamber form three fracture area.

Truncate positive taper structure is made up-small and down-big positive taper with housing, and at the crusher chamber inwall liner plate of being with fin is installed, and the gap of crusher chamber inwall and tup also is to reduce gradually from top to bottom.

The utility model has the advantages that: it can carry out multiple stage crushing to material, and bulk is broken on top, fritter in, the bottom is broken, can realize purpose in small, broken bits and meet the requirements of granularity.The scope of attack and the vertical guide of tup have angle, give downward power of material when hitting material, help flowing of material.Tup adopts bearing pin to be connected with disk, can play the effect of buffering.Impulsive force when the fin above the liner plate can strengthen fragmentation, the speed of the swirling eddy that is produced when weakening the rotor rotation, and play water conservancy diversion.The stairstepping liner plate can increase stirring material number of times, strengthens the tup strike effect.The utlity model has comprehensive function, need not links such as screening or multiple stage crushing, can simplify the design and the investment of fuel preparation system.

Below in conjunction with accompanying drawing the utility model is further specified:

Fig. 1 is the cutaway view of the utility model embodiment one

Fig. 2 is the schematic diagram of the utility model embodiment two

Fig. 3 is the front view of tup

Fig. 4 is the side view of tup

Fig. 5 is the front view of liner plate

Fig. 6 is the side view of liner plate

Below in conjunction with accompanying drawing embodiment one, two is described respectively

Figure one is embodiment one: motor 1 is by being bolted on the base, small belt pulley 2 is housed on the motor shaft, big belt pulley 3 is contained in the lower end of

main shaft

4,8 two in disk is one group and is connected with main shaft 4 keys, tup 9 is connected with disk 8 by bearing pin 10, one end of main shaft is fixed on the end seat 6 by bearing block 5, the other end is fixed on the upper body 13 by bearing block 11, stairstepping liner plate 14 is fixed by bolts to the crusher chamber inwall, 12 is feeding mouth, but two of feeding mouth symmetric arrangement, and 7 is discharging opening, but discharging opening is two of symmetric arrangement also, promptly go with each other all the time.

Figure two is embodiment two, and what it was different with embodiment one is that housing adopts up-small and down-big truncate positive taper.

Drive the rotor rotation by belt pulley after motor rotates, material begins from feeding mouth top to fall, and is subjected to the strike of many group tups in dropping process, when be fractured into satisfactory granularity when discharging opening flows out.

Claims

1, the vertical fine crusher of a kind of hammering, it is made up of casing, rotor, support, motor and transmission device, it is characterized in that: rotor adopts vertical, rotor is provided with multistage tup, tup is connected with bearing pin with disk, the scope of attack of tup and vertical guide are certain angle, at the inwall of crusher chamber the stairstepping liner plate are installed.

2, the said tup of claim 1 is characterized in that: the scope of attack and vertical guide are 10 ° of-15 ° of angles.

3, the said liner plate of claim 1 is characterized in that: have on liner plate and the vertical fin that is certain angle of aluminium.

4, the said housing of claim 1 is characterized in that: it is up-small and down-big truncate positive taper body.