CN201195124Y

CN201195124Y - Multi-stage pulverizer

Info

Publication number: CN201195124Y
Application number: CNU2008201146725U
Authority: CN
Inventors: 孔斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-07
Filing date: 2008-05-07
Publication date: 2009-02-18
Anticipated expiration: 2018-05-07

Abstract

The utility model relates to a multilevel crusher. A blade fixed on a main shaft which runs through a crusher body divides a crushing cavity into a coarse crushing cavity, a fine crushing cavity and a material discharge cavity, wherein, the inlet of the coarse crushing cavity is communicated with a feeding hole which is internally embedded with a material limiting valve through a feeding cavity; the outlet of the coarse crushing cavity is communicated with the fine crushing cavity; the outlet of the fine crushing cavity is communicated with the inlet of the material discharge cavity; the outlet of the material discharge cavity is correspondingly communicated with a sedimentation classification cavity; and an extrapositioned intake which ensures the circulation of the airflow in the cavity body is embedded in the front cavity wall of the coarse crushing cavity. The utility model has compact structure, small equipment volume, low energy consumption, high efficiency and very convenient installation, operation and maintenance, realizes the tight combination of multilevel crushing and material discharge, causes the crushing course to be continuous and effective, and simultaneously limits the dust pollution.

Description

A kind of multistage grinder

Technical field:

The utility model relates to a kind of disintegrating apparatus, and particularly a kind of can the realization carried out at a high speed the evenly multistage grinder of pulverizing to material.

Background technology

Pulverizing has widely in industries such as chemical industry, plastics, medicine, dyestuff, metallurgy, feed, feed addictive, food and rubber uses.Pulverizer at present commonly used mainly can be divided into two classes, at the hammer formula or the roller-type pulverizer of brittle material be mainly used in the net formula or the cutter formula pulverizer of flexible material.Yet present most pulverizers adopt single-stage to pulverize, and material is pulverized inhomogeneous, and generation is pulverized not enough or crossed and pulverize easily.Simultaneously, most material gravity flow or the spiral way of adopting of pulverizer on the market are pulverized mass transport to pulverizing chamber, and to the granularity of charging with require than higher, material is longer in the time that pulverizing chamber stops, and causes production efficiency lower.Also do not realize material input, material coarse crushing, in small, broken bits and material output are incorporated into the disintegrating apparatus of one in the prior art.

In addition, most of pulverizers cause in the material crushing process dust density excessive owing to there is not supporting water-tight equipment on the market, have not only wasted raw material resources, have also greatly polluted working environment simultaneously.In addition, owing to lack corresponding heat abstractor, in crushing process, the pulverizer bearing runs up, and the temperature rise amplitude of variation is excessive, easily causes bearing stability to descend, and reduce service life.

Summary of the invention

The purpose of this utility model provides a kind of existing shortcoming and defect of above-mentioned existing disintegrating apparatus that overcomes, realization is incorporated into one with material input, material coarse crushing, in small, broken bits and material output, overcomes the multistage grinder that dust leaks and has self cooling performance.

Multistage grinder described in the utility model is achieved in that fixed interval has the one-level blade on the main shaft of whole pulverizer, the secondary blade, the fan blade blade is that crushing chamber is divided into the coarse crushing chamber respectively with the pulverizer working cavity, chamber in small, broken bits and discharge chamber, wherein, the charging aperture of the import in coarse crushing chamber and embedded limited material valve leads to by feed cavity, the outlet in coarse crushing chamber communicates with the import in chamber in small, broken bits, the outlet in chamber in small, broken bits connects the import in discharge chamber, the corresponding connection with the classification of sedimentation chamber of the outlet in discharge chamber ensures that the external ventilating opening of cavity airflow is embedded in the anterior chamber wall in coarse crushing chamber.

Advantage of the present utility model is: compact conformation, volume are little, and energy consumption is low; Multistage pulverizing and discharge are combined closely, efficient height, crushing process continuous effective; Dust pollution is low; Installation, Operation and maintenance are conveniently.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is made detailed description.

Fig. 1 is a side sectional view of the present utility model;

Fig. 2 is a front portion structure schematic diagram of the present utility model.

Among the figure 1, pulverizer body, 2, main shaft, 3, crushing chamber, 4, charging aperture, 5, limit material valve, 6, feed cavity, 7, coarse crushing chamber, 8, one-level blade, 9, chamber in small, broken bits, 10, secondary blade, 11, discharge chamber, 12, fan blade blade, 13, classification of sedimentation chamber, 14, sealing and dustproof cover, 15, observation window, 16, air inlet, 17, water circulate from device for cooling.

The specific embodiment

As shown in Figure 1, on the main shaft 2 of whole pulverizer 1, be fixed with one-level blade 8 by high-strength bolt, secondary blade 10, fan blade blade 12, with the pulverizer working cavity is that crushing chamber 3 is divided into coarse crushing chamber 7 respectively, chamber 9 in small, broken bits and discharge chamber 11, wherein, the charging aperture 4 of the import in coarse crushing chamber 7 and embedded limited material valve 5 leads to by feed cavity 6, the outlet in coarse crushing chamber 7 communicates with chamber 9 in small, broken bits, the outlet in chamber 9 in small, broken bits connects the import in discharge chamber 11, the outlet in discharge chamber 11 and the 13 corresponding connections of classification of sedimentation chamber ensure that the external ventilating opening 16 of cavity airflow is embedded in the anterior chamber wall in coarse crushing chamber 7.

Treat that comminuting matter enters charging aperture 4, regulate flow, enter coarse fodder chamber 7 by feed cavity 6 equably continuously, be subjected to the impact of the one-level blade 8 of high speed rotary, carry out coarse crushing by limit material valve 5.Material after the coarse crushing is brought under the effect of the air-flow that fan blade produced in the chamber in small, broken bits 9 of taper.Air inlet 16 guarantees the unobstructed of the interior air-flow of cavity.Material in the chamber 9 in small, broken bits is pulverized once more through the secondary blade 10 of rotation at a high speed, then along with powerful air-flow via discharge chamber 11, enter classification of sedimentation chamber 13.Classification of sedimentation chamber 13 is selected weight of material according to wind-force, and lightweight material is taken away by wind, and the material of heavy sinks by the effect of gravity, and is discharged outside the body flow process of finishing the work by discharging opening.

The main shaft 2 of pulverizer 1 described in the utility model also is provided with sealing dust-proof device 14 with the intersection in coarse crushing chamber 7.Sealing and dustproof cover 14 is fixed on the main shaft, and the same groove in similar Qu Lu labyrinth is arranged on it, and corresponding groove tight connecting is arranged also on the pulverizer casing, thereby plays sealing effectiveness.

Pulverizer 1 described in the utility model also is equipped with the water circulation from device for cooling 17.In the bearing block inside of main shaft 2 water circulation chuck is housed, the bearing block outside has pipeline to communicate with it, and main shaft 2 outsides are equipped with outlet pipe, water inlet pipe and water pump simultaneously.Water enters water circulation chuck from water inlet pipe during pulverizer 1 work, discharges from outlet pipe behind the heat that absorption main shaft 2 distributes, thereby realizes that the water circulation is self cooling.

Pulverizer 1 crushing chamber 3 described in the utility model is embedded with checks that the cavity blade grinds the observation window 15 of situation.

The precipitation fractionation chamber 13 of pulverizer 1 described in the utility model can be connected as a single entity with crushing chamber 3, also can supportingly install.

The inside cavity of crushing chamber 3 described in the utility model uses antifriction alloy special.

Described above only is certain applications example of the present utility model, and should not be regarded as limitation of the present utility model.According to notion disclosed in the utility model, those skilled in the art can design other similar embodiments at an easy rate.Claims of the present utility model should be regarded as comprising those not departing from the similar design of the utility model aim.

Claims

1. multistage grinder, it is characterized in that, go up fixed interval through the main shaft (2) of whole pulverizer (1) one-level blade (8) is arranged, secondary blade (10), fan blade blade (12), crushing chamber (3) comprises coarse crushing chamber (7), chamber in small, broken bits (9) and discharge chamber (11), wherein, the charging aperture (4) of the import in coarse crushing chamber (7) and embedded limited material valve (5) leads to by feed cavity (6), and the outlet of coarse crushing chamber (7) communicates with the import of chamber in small, broken bits (9), and the outlet of chamber in small, broken bits (9) connects the import of discharge chamber (11), the outlet in discharge chamber (12) is embedded in the anterior chamber wall in coarse crushing chamber (7) with classification of sedimentation chamber (13) corresponding connection, external ventilating opening (16).

2. multistage grinder according to claim 1 is characterized in that, precipitation fractionation chamber (13) can be connected as a single entity with crushing chamber (3), also can supportingly install.

3. multistage grinder according to claim 1, its feature exists, and main shaft (2) is also laid sealing dust-proof device (14) with the intersection in coarse crushing chamber (7).

4. multistage grinder according to claim 1 is characterized in that, pulverizer (1) also is equipped with the water circulation from device for cooling (17).

5. multistage grinder according to claim 1 is characterized in that, crushing chamber (3) is embedded with checks that the cavity blade grinds the observation window (15) of situation.

6. multistage grinder according to claim 1 is characterized in that, the inner chamber of crushing chamber (3) can adopt wear resistant alloy material.