CN101347756B - Hammer leaf type drum sieve pulverizing machine - Google Patents

Abstract

The invention belongs to crushing machinery, which more particularly relates to a hammer drum sieve crushing machine and a crushing method thereof which are applicable to food, feed, chemical and other fields, the crushing machine consists of a base (17), an upper rack (4), a main motor (15), a coupling (14), a shell body (1) of the crushing machine, a main shaft (10) of the crushing machine, a rotor (8), a hammer (7) and a material guide plate (5), and the crushing method is as follows: raw materials enter the crushing machine, qualified small particles penetrate a fixed sieve plate of the crushing machine under the high-speed hit of the hammer on the rotor, the qualified small particles which are not timely discharged and the unqualified large particles are thrown to the sieve surface of a rotating drum sieve by the rotor at a certain speed, thereby leading the working sieve surface to always maintain the high efficient sieving ability which is equivalent to increasing several times of the effective sieving area, improving the sieving ability of the original sieve plate of the crushing machine, improving the crushing efficiency and ensuring the quality of crushed materials.

Description

The hammer leaf type drum sieve pulverizer

Technical field

The invention belongs to size reduction machinery, particularly a kind of hammer leaf type drum sieve pulverizer and breaking method thereof that is applicable to fields such as grain, feed, chemical industry.

Background technology

At present, hammer slice type band sieve pulverizer is one of most widely used mill type in producing, the shape of its sieve sheet has cylinder type, droplet-shaped, inferior ellipse, the U type, Ω type etc., above-mentioned several sieve sheet all is fixed or vibrates within the specific limits, its weak point is that they only are suitable for coarse crushing, for the broken weak effect of micro mist, reason is that underproof large granular materials can't be discharged and accelerated motion after hammer leaf hits in pulverizer comminuting matter process, because action of centrifugal force makes material break away from the strike of hammer leaf, and it is very fast at the inboard material ring that forms of sieve, the quality difference of thickness material, cause the layering of material ring, coarse-particle bed is near sieve sheet side, and the fines granulosa overlays on the coarse fodder granulosa, forms circulation layer.Under the situation of the circulation layer that can't destroy material, not only influence the coarse granule material and return to and pulverize the district, and influence qualified particle and sieve.Especially carrying out micro mist when broken, hammer sieve gap and sieve aperture are less, and the rotor speed height, material is by the sieve plate difficulty, increased the frictional heat of material and sieve plate, temperature of charge is raise, and noise is big, the power loss of motor, also cause the excessive pulverizing of material in pulverizing chamber simultaneously, pulverizer sieves scarce capacity, just has the stifled sieve of serious circulation layer inevitably, makes crush efficiency low.

Summary of the invention

The objective of the invention is to overcome above-mentioned technical deficiency, a kind of running route that can change comminuting matter is provided, destroy the material circulation layer, effectively sheet is sieved in cleaning, improves the hammer leaf type drum sieve pulverizer and the breaking method thereof of crush efficiency.

The technical scheme that technical solution problem of the present invention adopts is: hammer leaf type drum sieve pulverizer and breaking method thereof are by base, put on the shelf, main motor, shaft coupling one, crusher housing, pulverizer main shaft, rotor, hammer leaf, stock guide is formed, be characterized in lower end in crusher housing, the rotary screen housing is housed, at rotary screen housing right-hand member the rotary screen motor is housed, motor shaft connects the rotary screen main shaft with shaft coupling two, adorn a rotary type rotary screen sieve sheet on the rotary screen spindle end, in rotary screen sieve sheet, a plurality of pressure-air jet pipes are housed, establish several pressure-air spray orifices on the pressure-air jet pipe periphery, one end of pressure-air jet pipe is communicated with the high-voltage pulse device, on rotary screen sieve sheet excircle, fix several parabolic plates, below rotary screen housing left side, be provided with the rotary screen discharging opening; Its breaking method is as follows: raw material enters in the pulverizer, under epitrochanterian hammer leaf hits at a high speed, qualified granule passes pulverizer gravity flow screen sheet, under the effect of negative-pressure air-flow, pass pulverizer gravity flow screen sheet, discharge by the pulverizer discharging opening, the qualified granule and the defective bulky grain of in time discharging do not thrown to the rotary screen compass screen surface of rotation by rotor with certain speed, qualified granule enters in the rotary screen of rotation, under the negative-pressure air-flow effect, discharge by the rotary screen discharging opening, because rotor turns to identical with rotary screen, after underproof bulky grain turns over certain angle with rotary screen, again be thrown in the pulverizing district by several fixing outward parabolic plates of rotary screen, again pulverize, pressure-air jet pipe ejection air flow cleaning compass screen surface in the rotary screen, but this rotor mill rotating work, the pressure-air jet pipe on the left of when rotor just changes, starting, start right side pressure-air jet pipe during the rotor counter-rotating, the air-flow of ejection is cleared up the rotary screen compass screen surface.

The invention has the beneficial effects as follows: when the material after the pulverizing contacts with the rotary screen compass screen surface, qualified granule passes sieve aperture, underproof coarse granule is after turning over certain angle, be thrown into the pulverizing district by roller screen device centrifugal force, again pulverize, material circulation layer running route is changed, destroyed circulation layer, the pressure-air jet pipe intermittently sprays pressure-air, and compass screen surface is kept clean, the compass screen surface of clearing up rotate again with pulverize after material contact, the work compass screen surface of making remains efficiently the sieve ability that falls, and has equaled to increase effective sieve of several times area that falls, and makes the original sieve sheet of pulverizer improve the sieve ability that falls, improve crush efficiency, guaranteed the quality of comminuting matter.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is hammer leaf type drum sieve pulverizer and breaking method structural front view thereof.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is hammer leaf type drum sieve pulverizer and breaking method technique for applying flow chart thereof.

Among the figure, the 1-crusher housing; 2-stock guide axle; 2-1-stock guide spanner; 3-stock guide axle sleeve; 4-puts on the shelf; The 5-stock guide; The 6-hammer slice axis; The 7-hammer leaf; The 8-rotor; 9-pulverizer gravity flow screen sheet; The 10-pulverizer main shaft; 11-bearing block one; 12-bearing block one support; The 13-cover; 14-shaft coupling one; 15-master's motor; 16-master's motor cabinet; The 17-base; 18-rotary screen motor; 19-rotary screen motor cabinet; 20-shaft coupling two; 21-bearing block two; 22-rotary screen housing; 23-rotary screen main shaft; 24-rotary screen sieve sheet; 25-parabolic plate; 26-pulverizer discharging opening; 27-pressure-air jet pipe; 27-1-pressure-air spray orifice; The 28-sealing strip; 29-rotary screen discharging opening; 30-high-voltage pulse device; 31-bearing block three supports; 32-bearing block three; The 33-charging aperture;

The specific embodiment

Embodiment, with reference to accompanying drawing 1,2, fix a main motor cabinet 16 on base 17 right sides of hammer leaf type drum sieve pulverizer and breaking method thereof, fixing main motor 15 above the main motor cabinet 16,15 in main motor connects pulverizer main shafts 10 with coupling 1, dress cover 13 above the shaft coupling 1.The bearing block 3 32 of pulverizer main shaft 10 left and right ends, bearing block 1 are fixed on bearing block three supports 31 and above bearing block one support 12, fixed rotor 8 on the periphery of pulverizer main shaft 10, at the several hammer slice axis 6 of the blade center fixed of rotor 8, on hammer slice axis 6, fix several hammer leaves 7; Pulverizer sieve sheet 9 fixedly is housed on the peripheral crusher housing of hammer leaf 7, and rotor mill 8 is contained in the housing 1 of the uncovered water droplet shape of lower end band.Crusher housing 1 upper end is fixed with puts 4 on the shelf, two stock guides 5 is housed in 4 putting on the shelf, and stock guide 5 lower ends separate with the stock guide axle sleeve 3 on the stock guide axle 2, and stock guide axle 2 is contained on the both sides end plate of crusher housing 1.Stock guide 5 directions are by spanner 2-1 control, and stock guide 5 is controlled feedstock directions.The fixedly connected rotary screen housing 22 in the lower end of crusher housing 1, on the rotary screen motor cabinet 19 of rotary screen housing 22 right-hand members, fix a rotary screen motor 18,18 in rotary screen motor connects rotary screen axles 23 with shaft coupling 2 20, rotary screen axle 23 is contained in the bearing in the bearing block 21, and bearing block 21 is fixed on the right side of rotary screen housing 22.Fix a rotary type rotary screen sieve sheet 24 at the left end head of rotary screen axle 23, in rotary screen sieve sheet 24, left and right two pressure-air jet pipes 27 are housed, establish several pressure-air spray orifices 27-1 on the pressure-air jet pipe 27, pressure-air jet pipe 27 left ends connect high-voltage pulse device 30, the rotor rotating is turned to do not open different pressure-air jet pipes 27 simultaneously, pressure-air jet pipe 27 inner high voltage air blow to away from by comminuting matter one side, the underproof coarse granule of being convenient to blow off.Place outside rotary screen sieve sheet 24 and fixedly adorn four parabolic plates 25, rotary screen sieve sheet 24 respectively is equipped with sealing strip 28 respectively with rotary screen discharging 29, and rotary screen discharging opening 29 is sealed with rotary screen sieve sheet 24 not only relative rotations but also to coarse granule.Establish pulverizer discharging opening 26 in rotary screen housing 22 lower ends, below rotary screen housing 22 left end heads, establish rotary screen discharging opening 29.

The course of work of hammer slice type drum screen pulverizer is to realize (with reference to accompanying drawing 3) like this, be input to pulverizer from the free-falling raw material of former silo through the even feeding machine, deliver in the pulverizer equably through stock guide 5 again from charging aperture 33, under the hammer leaf on the rotor 87 hit at a high speed, qualified granule was sucked picogram dragon, deduster, closes blower fan and enter finished bin with certain wind speed by high pressure positive blower.During work, raw material is in pulverizing chamber, main motor 15 drives rotor 8 high speed rotating, material is subjected to the high speed of the hammer leaf 7 on the rotor 8 and hits, qualified granule passes the sieve aperture of pulverizer gravity flow screen sheet 9 in the material, under the effect of negative-pressure air-flow, discharge by pulverizer discharging opening 26, qualified granule of in time discharging and underproof bulky grain are not thrown to rotary screen sieve sheet 24 with certain speed by rotor 8, qualified granule passes compass screen surface rapidly and enters in the rotary screen, under the effect of negative-pressure air-flow, discharge by rotary screen discharging opening 29, because rotor 8 turns to identical with rotary screen sieve sheet 24, after underproof large granular materials turns over certain angle with rotary screen sieve sheet 24, again oppositely thrown go back to the pulverizing district by rotary screen sieve sheet 24 outer fixing parabolic plates 25, changed the running route of comminuting matter, destroyed circulation layer, again pulverize, storeroom also has mutual tampering action in repeating said process, the material circulation layer that rotary screen forms turns to identical with the material circulation layer that rotor 8 always is shaped as, hinder each other and destroy each other circulation layer, make by the comminuting matter rotating speed and reduce, increased the number of times of hammer leaf 7 strike materials, high-voltage pulse device 30 can intermittently spray pressure-air, pressure-air enters pressure-air jet pipe 27, from pressure-air pore 27-1, blow to rotary screen sieve sheet 24, sieve sheet 24 is effectively cleared up, the keep left high pressure draught cleaning compass screen surface of side pressure-air jet pipe 27 ejection of the raw material that rotor mill 8 is entering when just changeing, the high pressure draught cleaning compass screen surface of the raw material that enters during rotor mill 8 counter-rotatings pressure-air jet pipe 27 ejections on the right side.Guarantee the permeability of sieve sheet 24, increased the effective area of rotary screen sieve sheet 24, improve crush efficiency.

Claims (2)

1. hammer leaf type drum sieve pulverizer, by base (17), put on the shelf (4), main motor (15), shaft coupling one (14), crusher housing (1), pulverizer main shaft (10), rotor (8), hammer leaf (7), stock guide (5) is formed, it is characterized in that lower end in crusher housing (1), rotary screen housing (22) is housed, at rotary screen housing (22) right-hand member rotary screen motor (18) is housed, motor shaft connects rotary screen main shaft (23) with shaft coupling two (20), adorn a rotary type rotary screen sieve sheet (24) on rotary screen main shaft (23) termination, in rotary screen sieve sheet (24), a plurality of pressure-air jet pipes (27) are housed, establish several pressure-air spray orifices (27-1) on pressure-air jet pipe (27) periphery, one end of pressure-air jet pipe (27) is communicated with high-voltage pulse device (30), on rotary screen sieve sheet (24) excircle, fix several parabolic plates (25), be provided with rotary screen discharging opening (29) in below, rotary screen housing (22) left side.

2. hammer leaf type drum sieve pulverizer according to claim 1, its breaking method is as follows: raw material enters in the pulverizer, under epitrochanterian hammer leaf hits at a high speed, qualified granule passes pulverizer gravity flow screen sheet, under the effect of negative-pressure air-flow, pass pulverizer gravity flow screen sheet, discharge by the pulverizer discharging opening, the qualified granule and the defective bulky grain of in time discharging do not thrown to the rotary screen compass screen surface of rotation by rotor with certain speed, qualified granule enters in the rotary screen of rotation, under the negative-pressure air-flow effect, discharge by the rotary screen discharging opening, because rotor turns to identical with rotary screen, after underproof bulky grain turns over certain angle with rotary screen, again be thrown in the pulverizing district by several fixing outward parabolic plates of rotary screen, again pulverize, pressure-air jet pipe ejection air flow cleaning compass screen surface in the rotary screen, but this rotor mill rotating work, when just changeing, rotor starts the pressure-air jet pipe in left side, start right side pressure-air jet pipe during the rotor counter-rotating, the air-flow of ejection is cleared up the rotary screen compass screen surface.

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