CN2329432Y

CN2329432Y - Internal screening combined crusher

Info

Publication number: CN2329432Y
Application number: CN98206046U
Authority: CN
Inventors: 杨刚
Original assignee: Mill Inst Hefei Academy Of Cement Research And Design State Bureau Of Buildin
Current assignee: Mill Inst Hefei Academy Of Cement Research And Design State Bureau Of Buildin
Priority date: 1998-06-23
Filing date: 1998-06-23
Publication date: 1999-07-21
Anticipated expiration: 2008-06-23

Abstract

The utility model relates to an internal screening combined crusher, which is particularly suitable for crushing materials, such as cement clinker, lime stone, block coal, etc. The utility model comprises a machine body, rotors and hammer heads. An upper and a lower two crushing chambers are arranged in the machine body. A spreading disk and a group of hammer heads are respectively arranged in the two crushing chambers. Two rotors are connected through the same vertical shaft. A screening device is arranged between the two crushing chambers. After the materials crushed in the upper crushing chamber are screened, the fine materials conform to granularity requirement enters a collecting hopper through an external discharge passage. The coarse materials of the screen tailing enter the lower crushing chamber to carry out secondary crushing and then enter the collecting hopper. The utility model has the advantages of simple structure, stage crushing and obvious crushing effect, reducing energy consumption.

Description

The internal screening combined type disintegrating machine

The utility model relates to the material crusher technical field, is specially adapted to brittle materials such as broken clinker, lime stone, block raw coal.

At present, be applicable to the disintegrating machine of all polymorphic types of broken various brittle materials, mostly be to reach the purpose that makes the material fragmentation by impulsive force or extruding force, for example hammer mill, jaw crusher, impact breaker, vertical shaft crusher, squash type disintegrating machine etc., these disintegrating machines exist all that component wear is serious, wear-out part is changed frequent, finished product granularity and is difficult to shortcomings such as control, power consumption height.The existing disintegrating machine that utilizes the impulsive force broken material, though wear problem is solved, because material disintegrating machine meeting for once in disintegrating machine, still exist the finished product granularity to be difficult to satisfy technological requirement, for this reason, need to set up screening plant in the disintegrating machine outside, sieve going out the machine material, it is broken once more that thick material after the screening is sent into disintegrating machine with elevator, forms a cover closed circuit circulatory system, thereby make technological process become complicated.

The purpose of this utility model provide a kind of simple in structure, crushing effect significantly, the combined crushing machine of the impulsive force that cuts down the consumption of energy and gravity combined crushing, interior screening material.

For achieving the above object, the utility model is taked following design: this internal screening combined type disintegrating machine comprises body, rotor, tup crushing chamber, be provided with upper and lower two crushing chambers in the described body, a spreading disk and one group of tup are housed respectively in two crushing chambers, two rotors are connected by same vertical shaft, are provided with screening plant between two crushing chambers.

This screening plant can carry out interior screening to the material after the fragmentation first time in the last crushing chamber, its structure of screening plant is frustum-like shape of annular, can be in the screening course of work by vibrations and mechanical shock improve screening effect naturally, sieve plate is stepped or tabular, be the vibration-type structure, make by elastomeric material, broken for the first time material, through behind the screening plant, the thin material that meets technological requirement, enter in the outer discharge channel under the sieve plate, thick material is by the sieve plate district, the blind plate district enters that to carry out the second time in the crushing chamber of its underpart broken, has so just solved because of thin material enters the broken for the second time cushion that forms to cause that crushing efficiency descends and wastes energy consumption.

For making material can produce high speed centrifugation power, in first rotor, be provided with a plurality of spreading passages, the shape of spreading passage is quickened to fly away from rotor and is designed by helping material, according to rotor speed and quality of material, and finished product granularity requirements, the spreading channel design is made up of rotor base plate and a plurality of dividing plates on it concrete structure of difformity and varying number spreading passage, the downward projection line of its dividing plate is involute or tangent line shape, help material like this and quicken to fly away from rotor, guarantee that material is with ceiling capacity, maximum speed, minimum friction is dished out at a high speed in rotor.For making in the rotor centrifugal material crushing effect of dishing out remarkable, counterpunch board is equipped with in inboard at crushing chamber, the surface of this counterpunch board is dentalation, can be with the material impact grinding, material is moved in a certain direction, this counterpunch board is made with high-abrasive material, can select carborundum or high-chromium material for use, be connected to deflection plate on counterpunch board top, above the rotor in last crushing chamber stock guide is arranged, carry out fragmentation by centrifugal material of dishing out and counterpunch board in the rotor like this, material after its fragmentation again with deflection plate, deflector bumps, going out mutually between material and counterpunch board and material and the material then, collision, grinding reaches the crushing effect of design, and the wearing and tearing of rotor are relieved to minimum level.Material after the impact is reasonably strikeed back the diverse location of fracture area by the quality size, has improved the impact chance between material and the material again, improves crushing effect.Material after the last crushing chamber fragmentation at first enters the sieve plate district, discharge channel outside under sieve plate, having, interior discharge channel is arranged at the rotor bottom in following crushing chamber, within it, aggregate bin is arranged at outer discharge channel bottom, in disintegrating machine, can realize screening, the shunting of thickness material like this, thick material is entered down carry out the fragmentation second time in the crushing chamber, because material is through the centrifugal impact grinding first time, granularity is less, impulsive force obviously reduces, therefore it is broken to adopt for the second time tup to force, thereby crushing effect is significantly improved.

Compared with the prior art the utility model has following advantage:

1, owing in the body upper and lower two crushing chambers and inner sieving mechanism are arranged, but the two-stage fragmentation.Interior screening back thickness material diversion has promptly improved crushing efficiency, has cut down the consumption of energy, and can once reach the finished product requirement again.

2, simple in structure, the output investment ratio like product reduces by 80%.

3, particle size after cracking forms powdery and reaches 50% below 5 millimeters, and its crushing effect is remarkable.

4, owing to go out disintegrating machine finished product granularity and enter ball mill for a short time and have significant Increasing Production and Energy Saving effect, be example with the clinker, ball mill output is improved more than 50%, power consumption descends more than 30%.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of this disintegrating machine

Fig. 2 a is the schematic top plan view of rotor A

Fig. 2 b is the schematic top plan view of another kind of rotor A

Fig. 3 is the schematic top plan view of rotor B

Fig. 4 is a screening plant plan structure schematic diagram

Among Fig. 1, Fig. 2, Fig. 3, Fig. 4, be provided with upper and

lower crushing chamber

7,12 in body 8, between two crushing chambers screening plant be housed, this screening plant is made up of sieve plate 9 and blind plate 11, and its structure is that the annular cone angle of falling the truncated cone is 40 degree-65 degree.Two rotor A, B are connected by same vertical shaft 2,4 spreading passages 16 are arranged in the rotor A, and its passage is made up of rotor base plate 17 and dividing plate 18, and the downward projection line of its dividing plate 18 is an involute, or being provided with 8 spreading passages 19 in the rotor A, the downward projection line of its dividing plate 20 is a tangent line.On crushing

chamber

7,12 sidewalls, counterpunch board 5a, 5b are housed, the surface of this counterpunch board is dentalation, help the fragmentation of material, for preventing that material from sputtering fracture area in impact and collision process, be connected to deflection plate 6a, 6b on the top of counterpunch board 5a, 5b, above the rotor A in last crushing chamber 7 stock guide 4 be housed also.Central upper in rotor A is equipped with material distributing cone 3, is used to make material evenly to enter in the spreading passage 16.Central upper at rotor B is equipped with limit material awl 15, on the axle locating hole is arranged, and will limit the material vertex of a cone on the locating hole of axle with jackscrew, adjusts the upper and lower displacement of limit material awl 15, can control the flow that enters material in the rotor B, in order to improve its crushing effect.

During actual the use, need broken material in material distributing cone 3 enters spreading passage 16 in the rotor A equably, produce centrifugal force by the rotor high-speed motion, with the material throwing to counterpunch board 5a, make material under impact and collision effect, be able to fragmentation, through the material landing after the fragmentation first time or splash on the sieve plate 9, this sieve plate 9 is to be made by round bar coiling welding.Material is under the effect of inertia and shaking force, to lower slider and be sized, the thin material that meets granularity requirements passes sieve plate 9, outer discharge channel 10 through its underpart enters aggregate bin 13, discharge outside the machine then, the thick material that tails over by the sieve plate district after, fall into from blind plate 11 middle parts in the spreading passage 19 of rotor B, the limit material awl 15 on rotor B top, material is entered in the rotor B on request, rotor B is made up of one group of tup 21, with further in small, broken bits the striking on the counterpunch board 5b of the coarse fodder after the rotor A fragmentation, making the thick thing quilt fragmentation once more through tailing over, is into aggregate bin 13 by broken for the second time material through interior discharging 14, discharges outside the machine in the lump with the material that outer discharge channel 10 draws off.

Claims

1, a kind of internal screening combined type disintegrating machine, it comprises body, rotor, tup crushing chamber, it is characterized in that: be provided with upper and lower two crushing chambers in the described body, a spreading disk and one group of tup are housed respectively in two crushing chambers, two rotors are connected by same vertical shaft, are provided with screening plant between two crushing chambers.

2, internal screening combined type disintegrating machine according to claim 1 is characterized in that: a plurality of spreading passages in the described spreading disk, and this spreading passage is made up of rotor base plate and a plurality of dividing plates on it, and the downward projection line of its dividing plate is a tangent line, or involute.

3, internal screening combined type disintegrating machine according to claim 1 is characterized in that: its structure of described screening plant is annular frustum-like shape, and cone angle is 40 °-65 °, is made up of sieve plate and blind plate.

4, internal screening combined type disintegrating machine according to claim 1 is characterized in that: on the described crushing chamber sidewall counterpunch board is housed, the surface of this counterpunch board is dentalation, is connected to deflection plate on counterpunch board top.

5, internal screening combined type disintegrating machine according to claim 1 is characterized in that: there is stock guide described rotor top of going up in the crushing chamber.

6, internal screening combined type disintegrating machine according to claim 3 is characterized in that: outer discharge channel is arranged under the described sieve plate, and interior discharge channel is arranged at the rotor bottom in the following crushing chamber, and there is aggregate bin its underpart.