CN203470072U

CN203470072U - Sieve-free ultrafine grinder

Info

Publication number: CN203470072U
Application number: CN201320554880.8U
Authority: CN
Inventors: 唐金祥
Original assignee: Individual
Current assignee: Jiangsu FAST Machinery Co ltd
Priority date: 2013-09-09
Filing date: 2013-09-09
Publication date: 2014-03-12
Anticipated expiration: 2023-09-09

Abstract

The utility model relates to a sieve-free ultrafine grinder. The technical scheme is as follows: the sieve-free ultrafine grinder comprises a main shaft (1), end plates (2), a gear ring (3), a rotor (4) and a main motor (6), wherein the gear ring (3) and the end plates (2) fixedly connected to two sides of the gear ring are formed into a grinding chamber; a discharging hole of a spiral feeder (8) is communicated with one end of a chute (4), and the other end of the chute (4) extends into the grinding chamber; and one end of an air inlet pipe (12) is communicated with the grinding chamber, and the other end of the air inlet pipe (12) is communicated with the external space of the grinder. After the technical scheme is adopted, the grinding efficiency is increased.

Description

Without sieve micronizer

Technical field

The utility model relates to a kind of pulverizer without sieve, and it utilizes the rotor containing hammer leaf of High Rotation Speed to pulverize material.

Background technology

According to pulverizing the granule size of finished product and the ratio of pulverizing front and back particle size, disintegrating apparatus can be divided into 4 classes, specifically classifies in Table 1.

The classification of table 1 disintegrating apparatus

Unit: um

Existing atomizer or micronizer mostly rely on vertical crusher material are pulverized.

As: Chinese patent notification number CN201161200Y discloses a kind of micronizer.This pulverizer comprises reducing mechanism, grading plant, grading plant comprises classification wheel shaft, grading wheel, fluid dividing cover and discharge chamber, discharge chamber and fluid dividing cover and grading wheel form the space of a relative closure, between fluid dividing cover and grading wheel, are provided with fluid dividing cover, and grading wheel is taper type.

The weak point that existing vertical crusher exists is: first, the energy consumption of pulverizer is high, efficiency is low: because the fineness that requires to pulverize is lower, therefore in order to increase the kinetic energy of shock, just must increase the rotating speed of cutter head, make more than the linear velocity of tup reaches 100 metre per second (m/s)s, cause more than the power consumption of finished product powder reaches 50 degree.The second, size and the area of tup are less, and material is subject to the impacting of tup and gear ring, cutter can be less, cause crush efficiency low.The the 3rd: because material is subject to tup and gear ring shock shear action, its wearing and tearing to tup and gear ring are strengthened and under the effect of high velocity air, are passed in the process of baffle liner and classifying turbine by the fines after pulverizing, larger equally to the wearing and tearing of baffle liner and classifying turbine, general every three months will be changed once, and these parts prices are higher, the consumptive material of material per ton is high.

For another example: China Patent Publication No. CN201774941U discloses a kind of grinding system, it utilizes existing horizontal hammer crusher, improves output.Its concrete system comprises former material screen, pulverizer without sieve, expansion chamber, screw conveyor, elevator, Powder screen and powder collecting cabin, expansion chamber is positioned at the below of pulverizer, the discharging opening of pulverizer is connected to one end of expansion chamber, the other end of expansion chamber is connected with the air inlet of pulse dust collector, the air outlet of pulse dust collector is connected with the import of blower fan, screw conveyor is positioned at the bottom of expansion chamber, the discharge end of screw conveyor is connected with elevator, former material screen oversize outlet is the charging aperture toward pulverizer without sieve by device for cleaning pipeline, the upper end discharging opening of elevator is connected with Powder screen charging aperture, the outlet of Powder screen screenings is connected with the entrance of powder collecting cabin, the outlet of Powder screen oversize is the charging aperture toward pulverizer without sieve by device for cleaning pipeline.This system, by the combination of a series of screenings, conveying equipment, realizes without sieve and pulverizes object.Pulverizer without sieve is wherein top charging, bottom discharging, and it overcomes the deficiency of existing vertical crusher, but its grindability is general.

Summary of the invention

The purpose of this utility model is for deficiency of the prior art, provides a kind of without sieve micronizer, requires that output is high, cost is low, good crushing effect.

For achieving the above object, the utility model is by the following technical solutions: a kind of without sieve micronizer, it includes main shaft, end plate, gear ring, rotor and main motor, gear ring forms pulverizing chamber with the pulverizer end plate that is fixed in gear ring both sides, main shaft two ends through end plate are fixed by main shaft bearing, main motor is connected with main shaft one end, the rotor that is positioned at pulverizing chamber is fixed on main shaft, pulverizing chamber top is provided with pulverizer discharging opening, wherein: be also provided with scroll feeder, skewed slot and blast pipe, the discharging opening of scroll feeder is communicated with skewed slot one end, the skewed slot other end stretches in described pulverizing chamber, blast pipe one end is communicated with described pulverizing chamber, and the blast pipe other end is communicated with described pulverizer space outerpace.

Further, described blast pipe one end is communicated with pulverizing chamber lower space.

Further, be also provided with air uniform plate, air uniform plate is provided with hole, and air uniform plate is positioned at the exit, blast pipe one end being communicated with described pulverizing chamber.

Adopt the beneficial effect after technique scheme:

1, pulverizer without sieve, coordinates by the rotor containing hammer leaf and the gear ring outside rotor, effectively avoids the formation of material circulation layer in crushing process, improves output, reduces use cost; The design of blast pipe, makes the surrounding air outside pulverizer can enter pulverizing chamber, improves crushing effect.

2, blast pipe one end is communicated with pulverizing chamber lower space, and the air that newly fills into pulverizing chamber can, with reflux type through whole pulverizing chamber, further improve crushing effect.Air uniform plate, makes the air-distribution that fills into more even, improves crushing effect.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is that the A of Fig. 1 is to side-looking structure chart.

In figure: 1, main shaft, 2, end plate, 3, gear ring, 4, rotor, 5, support, 6, main motor, 7, feed hopper, 8, scroll feeder, 9, feeding motor, 10, skewed slot, 11, air inlet, 12, blast pipe, 13, air uniform plate, 14, pulverizer discharging opening, 15, main shaft bearing, 16, shaft coupling, F, air intake direction, W1, material approach axis, W2 material is discharged direction.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.

Embodiment

As shown in Fig. 1～2, a kind of without sieve micronizer, it includes main shaft 1, end plate 2, gear ring 3, rotor 4, main motor 6, scroll feeder 8 and skewed slot 10; Gear ring 3 both sides are connected with end plate 2, on gear ring 3, are evenly equipped with tooth, and gear ring 3 and both sides end plate 2 form pulverizing chamber; Main shaft 1 is through both sides end plate 2, and main shaft 1 two ends are fixed on support 5 by main shaft bearing 15, and main motor 6 is connected with main shaft 1 one end by shaft coupling 16, and rotor 4 is positioned at pulverizing chamber, and rotor 4 is fixed on main shaft 1; Blast pipe 12 one end are communicated with pulverizing chamber, and blast pipe 12 other ends are provided with air inlet 11, and so, pulverizer space outerpace is communicated with pulverizing chamber by air inlet 11, blast pipe 12; The discharging opening of scroll feeder 8 connects skewed slot 10 one end, and skewed slot 10 other ends stretch in pulverizing chamber; On the charging aperture of scroll feeder 8, according to need to establish feed hopper 2, feeding motor 9 is by the actuator drives scroll feeder 8 of scroll feeder, the transmission device of scroll feeder can but be not limited to: belt, sprocket wheel.The cross section of air inlet 11 can but be not limited to circle or rectangle.

As shown in Figure 1, 2, blast pipe 12 one end are preferably disposed on pulverizing chamber bottom.So, blast pipe 12 one end are communicated with pulverizing chamber lower space, and the air filling in pulverizing chamber can be with reflux type through whole pulverizing chamber.Pulverizing chamber top is provided with pulverizer discharging opening 14.Separately, blast pipe 12 one end that are communicated with pulverizing chamber bottom preferably arrange air uniform plate 13, and air uniform plate 13 is provided with hole.

During normal operation, pulverizer discharging opening connects negative pressure device outward, as: the negative pressure device that cyclone separator, pulse dust collector and blower fan form.Pulverizer discharging opening also can connect screening plant or grading plant outward.Material enters scroll feeder by material approach axis W1, and is entered in pulverizing chamber and pulverized by skewed slot, and the gear ring in the rotor of High Rotation Speed and rotor outside coordinates, comminuting matter.Material after pulverizing is discharged direction W2 by material and is discharged pulverizer under the effect of negative pressure, and qualified material is by the screening plant by outside or the separated discharge of classifying equipoment, and underproof material can come back to pulverizing chamber and pulverize.The air of pulverizer outside flows in pulverizing chamber by air intake direction F, and can, with reflux type through whole pulverizing chamber, further improve crushing effect.

Inventor finds through overtesting: the horizontal of a 110KW can reach 4-5 ton/time without its output of net pulverizer, and fineness is 95% by 80 object screen clothes, and in this finished product, has 80% fine powder can pass through 100 object screen clothes.The output of the vertical ultrafine disintegrator of its more same power improves 40% left and right, and the consumptive material of its material per ton is only 50% left and right of vertical crusher.

The utility model is not limited to above-described embodiment, and the technical scheme that all employings are equal to replacement or equivalence replacement formation all belongs to the claimed scope of the utility model.

Claims

1. a nothing is sieved micronizer, it includes main shaft (1), end plate (2), gear ring (3), rotor (4) and main motor (6), gear ring (3) and the pulverizer end plate (2) that is fixed in gear ring both sides form pulverizing chamber, main shaft (1) two ends through end plate are fixing by main shaft bearing (15), main motor (6) is connected with main shaft (1) one end, the rotor (4) that is positioned at pulverizing chamber is fixed on main shaft (1), pulverizing chamber top is provided with pulverizer discharging opening (14), it is characterized in that: be also provided with scroll feeder (8), skewed slot (10) and blast pipe (12), the discharging opening of scroll feeder (8) is communicated with skewed slot (4) one end, skewed slot (4) other end stretches in described pulverizing chamber, blast pipe (12) one end is communicated with described pulverizing chamber, and blast pipe (12) other end is communicated with described pulverizer space outerpace.

2. according to claim 1 without sieve micronizer, it is characterized in that: described blast pipe (12) one end is communicated with pulverizing chamber lower space.

3. nothing sieve micronizer according to claim 1, is characterized in that: be also provided with air uniform plate (13), air uniform plate (13) is provided with hole, and air uniform plate (13) is positioned at blast pipe (12) exit, one end being communicated with described pulverizing chamber.