CN206709574U

CN206709574U - A kind of aluminium powder drying system

Info

Publication number: CN206709574U
Application number: CN201621141326.7U
Authority: CN
Inventors: 袁建国
Original assignee: JIANGSU TIANYUAN METAL POWDER CO Ltd
Current assignee: JIANGSU TIANYUAN METAL POWDER CO Ltd
Priority date: 2016-10-20
Filing date: 2016-10-20
Publication date: 2017-12-05
Anticipated expiration: 2026-10-20

Abstract

It the utility model is related to a kind of aluminium powder drying system, including tubular heat exchanger, electronic compensating heater, hothouse, cyclone dryer, cyclone separating chamber and sack cleaner；The outlet of tubular heat exchanger communicates through pipeline with the bottom import of hothouse, and the bottom import of hothouse sets air blower；The import of electronic compensating heater communicates with nitrogen supplement blower fan, and the outlet of electronic compensating heater communicates through pipeline with the bottom of hothouse, and the outlet of electronic compensating heater is located at the top of hothouse bottom import；The top export of hothouse communicates through pipeline with the import of cyclone dryer；The outlet of cyclone dryer communicates through pipeline with the cyclone channel of cyclone separating chamber, and the air compartment outlet that goes out of cyclone separating chamber communicates through pipeline with the import of sack cleaner, and the outlet of the sack cleaner communicates through pipeline with centrifugal blower；The system architecture is simple, carries out dual-heated drying to powder using tubular heat exchanger, electronic compensating heater, improves drying efficiency.

Description

A kind of aluminium powder drying system

Technical field

Powder screening installation technical field is the utility model is related to, particularly a kind of aluminium powder drying system.

Background technology

Aluminium powder, be for rocket solid propellant, gunpowder, catalyst, thermal spraying, composite metal powder, explosive, fireworks, The metallurgical a kind of industrial products of firecracker, air entrained concrete foaming agent, welding rod, anticorrosive paint, aluminothermic process.The existing thin spherical aluminum of spy Powder production technology is all based on fluid mechanics principle, makes quilt under impact of the aluminium liquid in high velocity air, stirring, shear action of melting It is divided into some small drops, its cooling is turned into product.

Fine spherical aluminum powder manufacturer is when entering autumn and winter, due to mercury dropped, in order to meet production technology needs, Production efficiency is improved, it is necessary to be incubated to some processes pipeline and equipment, it is at present, general using on process pipe and equipment It is wound the insulation materials such as silicate fiber cotton and is thermally shielded insulation.The shortcomings that such a method, is, because heat-preservation cotton is only To heat-blocking action, acted on without temperature raising；Chinese patent Authorization Notice No. CN203843171U, disclose one kind and utilize flue gas The production of aluminum powder system that waste heat is incubated to equipment and process pipe, including melting furnace, centrifugal classifier and by process pipe with The cyclone classifier of centrifugal classifier connection, it is characterised in that it comprises additionally in air blower, tubular heat exchanger, spark arrester, Centrifugal classifier, process pipe and the outside of cyclone classifier set chuck, the import of blower export and tubular heat exchanger Connection, tubular heat exchanger are arranged on the top of the chimney of melting furnace, and the outlet of tubular heat exchanger and the import of spark arrester connect Connect, the outlet of spark arrester and the chuck import of centrifugal classifier connect, JO and the process pipe chuck of centrifugal classifier Import connection, the outlet of process pipe chuck be connected with cyclone classifier chuck import, cyclone classifier JO and revolves The import connection of the chuck of the outlet conduit of wind clasfficiator, the outlet emptying of the chuck of the outlet conduit of cyclone classifier.This is System is passed through fume afterheat by setting chuck in the outside of centrifugal classifier, process pipe and cyclone classifier, realizes and protects Temperature, reach the purpose that waste heat recycles energy-conservation.

The said equipment needs the outside setting chuck in centrifugal classifier, process pipe and cyclone classifier, complicated, It is not easy to construct.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of aluminium powder simple in construction, high lubricating effect and dries system System.

In order to solve the above technical problems, aluminium powder drying system provided by the utility model, including：Tubular heat exchanger, electricity Compensating heater, hothouse, cyclone dryer, cyclone separating chamber and sack cleaner；The import of the tubular heat exchanger is used In being passed through the mixed airflow that is mixed with aluminium powder to be dried, bottom import of the outlet through pipeline Yu the hothouse of tubular heat exchanger Communicate, the bottom import of the hothouse sets air blower, for send the mixed airflow for entering hothouse bottom；Institute The import for stating electronic compensating heater is communicated with nitrogen supplement blower fan, and for being passed through nitrogen into electronic compensating heater, the electricity is mended The outlet for repaying heater communicates through pipeline with the bottom of the hothouse, and the outlet of electronic compensating heater is located at hothouse bottom The top of import, for being heated to the mixed airflow for entering hothouse；The top export of the hothouse is through pipeline and institute The import for stating cyclone dryer communicates；The cyclone separating chamber includes cylindrical air-out that is concentric and setting gradually from top to bottom Room, upper shell and back taper lower shell, the cylinder go out air compartment and extended to by the apical lateral of upper shell in the upper shell, The bottom end opening that the cylinder goes out air compartment is arranged in the upper shell；The side wall upper part of the upper shell is set and the upper cylinder The tangent cyclone channel of the cylinder of body, the cyclone channel includes the roof being parallel to each other and bottom wall, the madial wall that is parallel to each other and Lateral wall；The cyclone channel is extended in upper shell by the outer wall of upper shell, and the lateral wall of the cyclone channel and the upper cylinder The side wall of body is integrally formed setting, madial wall with it is described go out air compartment side wall be integrally formed settings, roof and bottom wall edge go out air compartment Side wall spiral is set, and sealing is connected between roof and bottom wall and upper shell inwall, so as to form downward spiral in upper shell Helical duct, the bottom of the lower shell set powder to export, realize the separation of gas and powder；The cyclone dryer goes out Mouthful communicated through pipeline with the cyclone channel of the cyclone separating chamber, the cyclone separating chamber go out air compartment export through pipeline with it is described The import of sack cleaner communicates, and the outlet of the sack cleaner communicates through pipeline with centrifugal blower, realize gas discharge and The recovery of a small amount of powder.

Further, aluminium powder drying system also includes multiple pneumatic vibrator units located at the sack cleaner outer wall, uses Vibrated in the sack cleaner, avoid aluminium powder from adhering to.

The technique effect of utility model：（1）Aluminium powder drying system of the present utility model, relative to prior art, structure letter It is single, dual-heated drying is carried out to powder using tubular heat exchanger, electronic compensating heater, improves drying efficiency；（2）Whirlwind The upper end of separation chamber sets cyclone channel, and the powder for entering cyclone separating chamber is drained, avoids eddy flow from being short of power；（3） Aluminium powder is exchanged heat using nitrogen, conveyed, it is safe.

Brief description of the drawings

The utility model is described in further detail with reference to Figure of description：

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

Fig. 2 is the structural representation of cyclone channel of the present utility model.

In figure：Heat exchanger 1, electronic compensating heater 2, hothouse 3, cyclone dryer 4, cyclone separating chamber 5, go out air compartment 51, Cyclone channel 52, roof 53, bottom wall 54, lateral wall 55, madial wall 56, upper shell 57, lower shell 58, powder outlet 59, cloth bag Deduster 6, vibrating device 61, centrifugal blower 7, air blower 8, nitrogen supplement blower fan 9.

Embodiment

Embodiment 1 as shown in figure 1, the aluminium powder drying system of the present embodiment, including：Tubular heat exchanger 1, electronic compensating add Hot device 2, hothouse 3, cyclone dryer 4, cyclone separating chamber 5 and sack cleaner 6；The import of tubular heat exchanger 1 is used to lead to Entering the mixed airflow for being mixed with aluminium powder to be dried, the outlet of tubular heat exchanger 1 communicates through pipeline with the import of the bottom of hothouse 3, The bottom import of hothouse 3 sets air blower 8, for send the mixed airflow for entering the bottom of hothouse 3；Electronic compensating adds The import of hot device 2 communicates with nitrogen supplement blower fan 9, for being passed through nitrogen into electronic compensating heater 2, electronic compensating heater 2 Outlet communicates through pipeline with the bottom of hothouse 3, and the outlet of electronic compensating heater 2 is located at the top of the bottom import of hothouse 3, For being thermally dried to the mixed airflow for entering hothouse 3；The top export of hothouse 3 is through pipeline and cyclone dryer 4 Import communicate；Cyclone separating chamber 5 goes out air compartment 51, the and of upper shell 57 including cylinder that is concentric and setting gradually from top to bottom Back taper lower shell 58, cylinder go out air compartment 51 and extended to by the apical lateral of upper shell 57 in upper shell 57, and the cylinder goes out The bottom end opening of air compartment 51 is arranged in upper shell 57；The side wall upper part of upper shell 57 sets tangent with the cylinder of upper shell 57 Cyclone channel 52, as shown in Fig. 2 the inner side that the cyclone channel 52 includes the roof 53 that is parallel to each other and bottom wall 54, is parallel to each other Wall 56 and lateral wall 55；The cyclone channel 52 is extended in upper shell 57 by the outer wall of upper shell 57, and the cyclone channel 51 The side wall of lateral wall 55 and upper shell 57 is integrally formed setting, and madial wall 56 is integrally formed setting with going out the side wall of air compartment 51, pushes up Wall 53 and bottom wall 54 are set along air compartment side wall spiral is gone out, and are sealed and be connected between roof 53 and bottom wall 54 and the inwall of upper shell 57, So as to form the helical duct of downward spiral in upper shell 57, the bottom of lower shell 58 sets powder to export 59, realize powder and The separation of gas；The outlet of cyclone dryer 4 communicates through pipeline with the cyclone channel 52 of cyclone separating chamber 5, cyclone separating chamber 5 Go out air compartment 51 and export and communicated through pipeline with the import of sack cleaner 6, the outlet of the sack cleaner 6 is through pipeline and centrifugal blower 7 communicate, and realize the recovery and gas point discharge of a small amount of powder.The outer wall of sack cleaner 6 is symmetrical arranged a pair of pneumatic vibration dresses 61 are put, steel-ball type pneumatic vibrator can be selected in pneumatic vibrator unit（Such as Chinese patent Authorization Notice No. CN204564505U is public A kind of steel-ball type pneumatic vibrator accused）, for being vibrated to sack cleaner 6, avoid aluminium powder from adhering to.

Enter in use, being mixed with import of the aluminium powder of nitrogen through tubular heat exchanger 1, and the drum through being communicated with nitrogen pot Blower fan 8 sent in air blast, is delivered up by the bottom of hothouse 3, while nitrogen supplements blower fan 9 into electronic compensating heater 2 Supplying nitrogen, mixed after heating with entering the aluminium powder of hothouse 3, drying is realized in the presence of hothouse 3 and cyclone dryer 4 Heating；Dried aluminium powder mixed airflow is through the entrance upper shell 57 of swirl channel 52, in the helical duct in upper shell 57 Side wall is made adherent rotation and moved downward vertically, and after reaching back taper lower shell 58, radius of turn reduces and tangential velocity increases, Air-flow and particle make lower screw, after the bottom of back taper lower shell 58 is reached, is now more than cutting diameter in gas Aluminum particle is separated, the discharge of powder outlet 59 from the bottom of lower shell 58；Less than cutting diameter aluminum particle with gas Stream slowly enters the interior zone of lower shell 58, in cone center adverse current motion upwards vertically, into going out air compartment 51；And through cloth bag Deduster 6 reclaims to discharging, and to a small amount of powder therein.

Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, and is not to this reality With the restriction of new embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And these Belong to obvious changes or variations that spirit of the present utility model is extended out still in the scope of protection of the utility model Among.

Claims

A kind of 1. aluminium powder drying system, it is characterised in that including：Tubular heat exchanger（1）, electronic compensating heater（2）, hothouse （3）, cyclone dryer（4）, cyclone separating chamber（5）And sack cleaner（6）；The tubular heat exchanger（1）Outlet through pipe Road and the hothouse（3）Bottom import communicate, the hothouse（3）Bottom import air blower is set（8）；The electricity is mended Repay heater（2）Import and nitrogen supplement blower fan（9）Communicate, the electronic compensating heater（2）Outlet through pipeline with it is described Hothouse（3）Bottom communicate, and electronic compensating heater（2）Outlet be located at hothouse（3）The top of bottom import；It is described dry Dry room（3）Top export through pipeline and the cyclone dryer（4）Import communicate；The cyclone separating chamber（5）Including same The axle center and cylinder set gradually from top to bottom goes out air compartment（51）, upper shell（57）With back taper lower shell（58）, the circle Cylindricality goes out air compartment（51）By upper shell（57）Apical lateral extend to the upper shell（57）Interior, the cylinder goes out air compartment（51） Bottom end opening be arranged on the upper shell（57）It is interior；The upper shell（57）Side wall upper part set with the upper shell（57） The tangent cyclone channel of cylinder（52）, the cyclone channel（52）Including the roof being parallel to each other（53）And bottom wall（54）, mutually Parallel madial wall（56）And lateral wall（55）；The cyclone channel（52）By upper shell（57）Outer wall extend to upper shell（57） It is interior, and the cyclone channel（52）Lateral wall（55）With the upper shell（57）Side wall be integrally formed setting, madial wall（56） With it is described go out air compartment（51）Side wall be integrally formed setting, roof（53）And bottom wall（54）Edge goes out air compartment（51）Side wall spiral is set Put, and roof（53）And bottom wall（54）With upper shell（57）Seal and be connected between inwall, so that upper shell（57）Interior formation spiral Downward helical duct, the lower shell（58）Bottom set powder export（59）；The cyclone dryer（4）Outlet warp Pipeline and the cyclone separating chamber（5）Cyclone channel（52）Communicate, the cyclone separating chamber（5）Go out air compartment（51）Outlet warp Pipeline and the sack cleaner（6）Import communicate, the sack cleaner（6）Outlet through pipeline and centrifugal blower（7）Phase It is logical.
2. aluminium powder drying system according to claim 1, it is characterised in that also include being located at the sack cleaner（6） Multiple pneumatic vibrator units of outer wall（61）.