CN104117486B

CN104117486B - The simple gas flow sizing machine of powder

Info

Publication number: CN104117486B
Application number: CN201410386489.0A
Authority: CN
Inventors: 刘纯利; 殷定忠; 赵景梅; 詹学文; 张玉山; 许芹; 樊晓宇; 李立和; 姚智华; 张永峰
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2014-08-08
Filing date: 2014-08-08
Publication date: 2016-11-02
Anticipated expiration: 2034-08-08
Also published as: CN104117486A

Abstract

A kind of simple gas flow sizing machine of powder that the 120 above granules of mesh in mixed powder after pulverizing can be carried out air current classifying in quartz sand dry processing technique.Simple gas flow sizing machine is the vertical equipment of double-tube structure, is made up of upper, middle, and lower part.Upper shell, central enclosure and lower house constitute powder simple gas flow sizing machine urceolus；Top inner sleeve, middle part inner cylinder constitute inner sleeve.Material is entered inner sleeve by semi-finished product compound import, then by driven by motor uniform impeller material is distributed in central enclosure and between annular space that inner cylinder is formed, classification air-flow is entered by bottom discharge gate, between annular space, tiny primary granule product is separated from the compound of semi-finished product and takes away, then being discharged by top discharge gate, the semi-finished product material after separation is discharged by lower part outlet.Owing to the operations such as fine particles more than 120 mesh is separated and collected, follow-up screening no longer forming dust pollution.

Description

The simple gas flow sizing machine of powder

Technical field

The present invention relates to a kind of quartz sand powder particle selecting crude drugs with winnower classifying equipoment, the specifically simple gas flow sizing machine of powder.

Background technology

General quartz sand dry producing process is quartz gravel becomes the particle diameter semi-finished product mixed powder at below 5mm after coarse crushing, the grinding and processing such as in small, broken bits, then forms the product of different-grain diameter through sieving and grading.There is problems in that in actual production that 1. screening installations commonly used at present are mechanical pickers, mechanical picker is low to the classification efficiency of fine particles product.Quartz sand dry needs by product (accounting for about the 15% of the product population) classification of 120 eye mesh screens in producing, and owing to this one-level product cut size is little, mechanical picker is low to this kind of product screening ability, and efficiency is low.2. quartz sand dry adds trade union's substantial amounts of dust pollution of generation.Pulverizing process in dry process will necessarily produce a large amount of fine particle, these fine particles swim in and define dust in the air, and these fine particles are present in the whole production processes such as pulverizing, the conveying of semi-finished product crushed material, screening, finished product packing, in production, each process procedure is intended to meet the requirement of environmental protection, needs supporting kind and large number of dust collection and processing equipment.These problems are one of principal elements of restriction quartz sand dry process scale metaplasia product.The preferable thinking solving the problems referred to above is, find out the link that dust produces, start with from source, solve classification and the dust pollution question of fine particle size product, after grinding and processing raw material, i.e. i.e. set up fine particle size product separate and reclaimer, fine particle in semi-finished product compound is collected and classification, had the most both solved dust pollution, and solved again the problem that the classification efficiency of follow-up mechanical picker first class product less to particle diameter is low.For being separated from being pulverized and mixed material to greatest extent by the fine particles that the grinding and processing stage produces, more effective method is air current classifying.Kind and the kind of gas flow sizing machine are more the most on the market; but it is generally used for the classification of particle diameter product trickleer more than 200 mesh; and staged care ability and treatment effeciency are the most relatively low; being not suitable at the quartz of below 5mm, particle diameter is pulverized the 120 mesh above grain size product staged care included in compound, it is dry processing technique inevitable requirement of quartz sand that research and development be applicable to quartz sand do a quartz for process scale continuous production processes requirement to pulverize compound air current classifying special equipment.

Summary of the invention

In order to solve in quartz sand dry processing, general gas flow sizing machine is poor to the grading effect of the 120 mesh relatively small first class product of above particle diameter, efficiency is low and dust pollution question, the invention provides a kind of simple gas flow sizing machine of air current classifying equipment i.e. powder matched with quartz sand dry production technology.

It is to be series at by simple for powder gas flow sizing machine between pulverizing and screening that the present invention solves the thinking of problem, application air current classifying principle, pumped by air-flow, the product of the 120 above particle diameters of mesh is extracted out from system, it is included in owing to easily flying upward excessive dust in the product of the 120 above particle diameters of mesh, semi-finished product compound after the simple gas flow sizing machine of powder separates, the Dust Capacity containing fine particle is little, and the link such as follow-up conveying, mechanical grading, packaging does not all have the pollution problem of dust from flying.From the point of view of follow-up screening process, owing to the 120 above grain size products of mesh are separated so that the disposal ability of mechanical grading significantly improves, the production efficiency of whole technique improves.The product (wherein comprising the dust easily flown upward) of the 120 above particle diameters of mesh for being drawn out of, can be by configuring corresponding sedimentation and the further classification of dust collection device and process.

It is the vertical equipment of double-tube structure that the present invention solves the technical problem simple gas flow sizing machine of the technical scheme is that powder, is made up of upper, middle, and lower part.The top adapter mouth of equipment is air-flow and the outlet of the above grain size product of 120 mesh, and the adapter mouth that tilts of upper side is the import of semi-finished product compound, and lower openings is the outlet of remaining semi-finished product compound after the entrance of classification air-flow and separation.

Its upper side is made up of housing and inner sleeve, and the annular space between housing and inner sleeve is the passage of graded product, and inner sleeve top is shut, lower open, and inclined tube passes through the annular space between housing, housing and inner sleeve, enters inner sleeve, forms material and enters the passage of inner sleeve.

It is made up of urceolus housing and inner cylinder in the middle part of equipment, cylinder interior is provided with vertical machine, motor shaft end stretches out cylinder upper end plate, uniform impeller is installed on spindle nose, during work, the uniform impeller in driven by motor top rotates, semi-finished product compound is enable to be dispersed in housing and between annular space that inner cylinder is formed, the bottom of cylinder is bottom cover plate, it is connected with cylinder by bolt, so inside of cylinder is completely isolated with annular space, cylinder and shell are connected by several passage short tubes, form the passage that cylinder interior communicates with air, heat radiation and the access of cable for motor.

The invention has the beneficial effects as follows: owing to the simple gas flow sizing machine of powder is series between pulverizing and screening, before screening, the product of the 120 above particle diameters of mesh is extracted out from system, in remaining semi-finished product compound, dustiness is little, when operations such as follow-up screenings, bigger dust pollution will not be produced, it is no longer necessary to follow-up each process procedure is arranged cleaner；Effect and the efficiency of screening are improved.

Accompanying drawing explanation

Fig. 1 is the structural representation of the simple gas flow sizing machine of powder.

In figure, 1. compound outlet and classification air flow inlet, 2. grader lower case, 3. motor, 4. body inner cylinder in the middle part of, 5. body urceolus housing in the middle part of, 6. in the middle part of body inner cylinder and urceolus communicating pipe, the most uniform impeller, 8. upper body, 9. the import of semi-finished product compound, 10. inner sleeve, 11. graded products and air stream outlet.

Detailed description of the invention

The present invention is further described with embodiment below in conjunction with the accompanying drawings.

Seeing Fig. 1, upper shell 8, middle part urceolus housing 5, lower house 2 constitute powder simple gas flow sizing machine urceolus, and the inner sleeve 10 on top, middle part body inner cylinder 4 constitute inner sleeve.Material is entered inner sleeve 10 by semi-finished product compound import 9, then between by the annular space that motor 3 drives uniform impeller 7 that material is distributed in central enclosure and inner cylinder is formed, classification air-flow is entered by bottom discharge gate 1, between annular space, tiny primary granule product is separated from the compound of semi-finished product and takes away, then being discharged by top discharge gate 11, the semi-finished product material after separation is discharged by lower part outlet 1, and the power line of motor is introduced by connecting short tube 6.

Above are only one embodiment of the present of invention, be not limited in accompanying drawing of the present invention given structure content.For a person skilled in the art, to inside and outside sleeve shape, structural change in the technology of the present invention teachings, equivalent and improvement etc. belong to the protection domain of patent of the present invention.

Claims

null1. the simple gas flow sizing machine of powder，Including semi-finished product compound import，Discharging opening，Air inlet，Vertical and cylindrical housing，It is characterized in that: the simple gas flow sizing machine of powder is double-tube structure，Top is made up of upper body and inner sleeve，Annular space between upper body and inner sleeve is the passage of graded product，Inner sleeve top is shut，Lower open，Middle part is made up of middle part body urceolus housing and middle part body inner cylinder，Described middle part body inner cylinder is internally installed vertical machine，Motor shaft end stretches out described middle part body inner cylinder upper end plate，Uniform impeller is installed on spindle nose，The bottom of described middle part body inner cylinder is bottom cover plate，Described bottom cover plate is connected with described middle part body inner cylinder by bolt，The inside of described middle part body inner cylinder is completely isolated with described annular space，Described middle part body inner cylinder and middle part body urceolus housing are connected by several passage short tubes，Form the internal passage communicated with air of described middle part body inner cylinder，Heat radiation and the access of cable for motor.