CN105149070B - A kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system - Google Patents

A kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system Download PDF

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Publication number
CN105149070B
CN105149070B CN201510582576.8A CN201510582576A CN105149070B CN 105149070 B CN105149070 B CN 105149070B CN 201510582576 A CN201510582576 A CN 201510582576A CN 105149070 B CN105149070 B CN 105149070B
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fine grinding
deduster
geldart
particle
earth
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CN105149070A (en
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延云刚
吴郎
李友学
延广东
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Shandong Dy-Technology Co Ltd
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Shandong Dy-Technology Co Ltd
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Abstract

The present invention discloses a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system, it includes:Suction hose, the first deduster, corase grinding, the first fine grinding, the second deduster, the second fine grinding, powder collecting device and the third level deduster set gradually from front to back, wherein, it roughly grinds, abrasive grain precision is at 12 microns, first fine grinding abrasive grain precision is at 2 microns, and the second fine grinding abrasive grain precision is at 1 micron.The present invention is used in combination by three-level Geldart-D particle and three-level milling equipment, effectively reduce flour dust overflow, the blocking grinding machine equivalent risk that grinding generates, meanwhile by the grinding of the system, finally obtain be precision in 1 micron level without vanadium rare-earth-based titanium tungsten powder.

Description

A kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system
Technical field
The invention be related to refine technical field, specifically a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, Fine grinding system.
Background technology
In existing fine grinding system, carried out by Vertical Mill, traditional way is that the material of powdery is imported material It in bucket, is refined, there are airborne dusts and leakage for this mode, all harmful to the health of environment and operating personnel.
If existing milling device can not achieve the milling of fine granular, because using high-precision refiner, existing Using corase grinding, the purpose of abrasive grain is not achieved in the problem of blocking.
Invention content
In order to solve the deficiencies in the prior art, the present invention provide a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, Fine grinding system for Geldart-D particle and fine grinding to be caused to be combined, completes fine grinding technology, simultaneously during Geldart-D particle is carried out Guarantee does not leak.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system, which is characterized in that including:From front to back Suction hose, the first deduster, corase grinding, the first fine grinding, the second deduster, the second fine grinding, the powder collecting device set gradually With third deduster, wherein,
Suction hose uses bellows, and is installed additional in the end of suction hose for being inserted into the stainless steel suction in saggar Mouth, the other end of the suction hose are connected to the feed inlet of the first deduster by pipeline;
The first deduster filtering rank is 1 μm, and the dedusting of negative-pressure air fan and mesh less than 1 μm is connected in top exit Cloth bag, during work, the blanking port lower end connection corase grinding of the first deduster,
Corase grinding, abrasive grain precision pass through pipeline and are connected in next first fine grinding at 12 microns, and abrasive grain precision is micro- 2 Rice, and the discharge port of the first fine grinding is connected to the feed inlet of the second deduster by pipeline, wherein, the second deduster filtering rank It is 1 μm, the dust-removal cloth-bag that mesh is less than 1 μm, second fine grinding is installed at the negative-pressure air fan outlet mouth of pipe of the second deduster At 1 micron, the discharge port mounted on 2 lower end of the second deduster, the discharge port of second fine grinding is connected abrasive grain precision by pipeline It is connected to the feed inlet of powder collecting device;
Powder collecting device includes the babinet of upper, middle and lower three, and integrated form filter core is wherein equipped in upper box, filter core Filtering accuracy is feed inlet in middle case, the lower box is powder memory space, and in the bottom of lower box at 1 micron Setting outlet and spiral quantitative feed appliance,
The top of the powder collecting device upper box is connected to third deduster by pipeline.
Further, first fine grinding crushes steel mill using mine vertical.
Further, the corase grinding is Vertical Mill.
The powder collecting device includes:
Housing, upper part of the housing are rectangle, and lower part is pyramid shape;
Upper part of the housing inner cavity is divided into upper plenum and hollow cavity by one horizontally disposed partition board, is opened up on the partition board several Through-hole and a filter core is installed in each through-hole;
Wherein, the filtering accuracy of the filter core is not more than 5 microns, and air nozzle, the spray are arranged on the top of each filter core Gas nozzle is connect with high-pressure air source;
One negative pressure ventilation pipeline on the overhead cavity shell of housing is set, is connected with third deduster 3, and removed through third Dirt device 3 connects exhaust fan;One feed inlet, discharge port and helical feed below lower cavity are set in the middle part of the hollow cavity One gate is installed between device.
Further, the gate is gate valve.
Further, one cutting plate is set in the discharge outlet of lower cavity.
Further, the cutting plate is the triangle that tip is set upward, and mounted on the middle position of discharge port.
Further, it is independent between each air nozzle, a solenoid valve is set in the tracheae where each air nozzle, Solenoid valve is blown in a pulsed fashion.
Further, the filtering accuracy of the filter core is one kind in 1,2,3,4 micron.
The beneficial effects of the invention are as follows:
By being used in combination for three-level Geldart-D particle and three-level milling equipment, effectively reduce outside the dust that grinding generates Overflow, block grinding machine equivalent risk, meanwhile, by the grinding of the system, finally obtain be precision in 1 micron level without vanadium rare earth Base titanium tungsten powder.
Description of the drawings
Fig. 1 is the principle of the present invention figure.
Fig. 2 is the stereogram of collection device.
Fig. 3 is the front view of collection device.
Fig. 4 is the sectional view of collection device.
In figure:1 first deduster, 11 upper boxes, 12 middle cases, 13 lower boxes, 14 filtrations, 15 filter element of duster, 16 negative-pressure air fans, 17 dust-removal cloth-bags, 17 ' dust-removal cloth-bags, 2 second dedusters, 3 third dedusters, 4 suction hoses, 5 corase grinding, 6 the One fine grinding, 7 second fine grindings, 8 collection devices, 81 housings, 811 partition boards, 812 upper plenums, 813 hollow cavities, 82 filter cores, 83 jets Mouth, 831 solenoid valves, 84 negative pressure ventilation pipelines, 85 feed inlets, 86 gates, 87 auger conveyors, 88 cutting plates.
Specific embodiment
As shown in Figures 1 to 4, for existing defect, protection main body of the invention is as follows:
Exploitation is a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system, is removed using multistage negative pressure Dirt device carries out relay Geldart-D particle as power source, and during conveying, and granular material is brought to first, second and third grade and is stood Be milled in mill, most at last product granularity control at 2 μm hereinafter, realize fine grinding purpose, meanwhile, pneumatic transporting is passed through The granular material overflowed other than in journey is adequately recycled.
Based on the description above, include in this system structure:Suction hose 4, the first deduster 1, corase grinding 5, fine grinding 6,7, Second deduster 2, powder collecting device 8 and third deduster 3 are detailed separately below to be introduced.
Suction hose 4 uses bellows, and installs stainless steel material sucking mouth additional in the end of suction hose 4, and material sucking mouth is used to insert Enter in saggar, and draw in saggar 9 without vanadium rare-earth-based titanium tungsten powder material.The other end of suction hose 4 is connected to by pipeline First deduster 1.
First deduster 1 at this place is transformed on traditional dust catcher foundation to be obtained, wherein, three in the present embodiment are removed Dirt device is made of the part such as upper box 11, middle case 12, lower box 13, and upper, middle and lower babinet is chamber structure, and in middle case Filtration 14 is set between upper box, which includes a level board and several dedusters through level board Filter core 15, the filtering rank of the filter element of duster is 1 μm, and a powerful negative pressure wind is connected in the top exit of 11 body of top box Machine 16, and micron-sized dust-removal cloth-bag 17 is set.During work, material enters middle case 12 from air duct, and material falls directly into nowel Body, and fall under gravity into the corase grinding of lower section.
Corase grinding 5, abrasive grain precision is in 12 microns, using Vertical Mill, by the maximum of the powdered granule of corase grinding out Diameter is connected to by pipeline in next first fine grinding 6, the first fine grinding crushes steel mill, mill using mine vertical at 12 microns Grain precision is at 2 microns, by its powder precision out below 2 microns.The discharge port of first fine grinding 6 is connected to by pipeline Second deduster 2, wherein, the filter core for being 1 micron is used in the second deduster, it is micro- less than 1 due to containing diameter in powder The powder of rice needs to install several dust-removal cloth-bags 17 ' at the negative-pressure air fan outlet mouth of pipe of the second deduster, to a small amount of of spilling Powder is collected.Second fine grinding 7 uses the equipment identical with the first fine grinding, and mounted on the discharging of 2 lower end of the second deduster Mouthful, abrasive grain precision is at 1 micron, by its powder precision out at 1 micron hereinafter, the discharge port of the second fine grinding 7 passes through pipeline It is connected to powder collecting device.
Powder collecting device 8 is directed to the collection of material of a large amount of diameter below 1 micron.Collection device includes Three babinets of upper, middle and lower are wherein equipped with integrated form filter core in upper box, the filtering accuracy of filter core is at 1 micron, in middle case For feed inlet, that is, pass through pipeline and the second discharge port unicom refined.
It is larger in the volume that lower box is done, it is taper in the bottom of lower box for collection and temporary storage powder, and One spiral quantitative feed appliance 87 is set, cloth bag rapid fixing is equipped in the port of export of spiral quantitative feed appliance, passes through spiral shell Rotation quantitative feeding device is released powder, and realize pack.
Powder collecting device, main body are a housing.
Housing parts, 81 top of housing are rectangle, and lower part is pyramid shape, in the rectangular inner cavity on top one it is horizontally disposed Partition board 811, internal cavities are divided into upper plenum 812 and hollow cavity 813, several through-holes are opened up on partition board 811, and each One columned filter core 82 is installed in a through-hole, wherein, the filtering accuracy of the filter core 82 is 1 micron, you can to prevent 1 micron The powder of more than granularity passes through, and to prevent filter core from blocking, arranges air nozzle 83 on the top of filter core, is wherein between air nozzle Independent, a solenoid valve 831 is set in the tracheae where each air nozzle, for controlling the keying of air nozzle, each jet The whiff pressure of mouth is significantly larger than the air pressure of enclosure interior, and filter core is reversely brushed in a pulsed fashion, that is, with pumping Direction it is opposite.
One negative pressure ventilation pipeline 84 on the overhead cavity shell of housing 81 is set, is connected with third deduster 3, and through the Three dedusters 3 connect exhaust fan, for exhausting.
One feed inlet 85 is set in the middle part of the hollow cavity of housing 81, and material is transported to hollow in a manner of Geldart-D particle In chamber, and declined under the action of gravity and dispersion, and under accumulative being deposited in cavity 814, lower cavity is used to collect Powder simultaneously temporarily stores, and completes preliminary collection.
Discharge port below lower cavity installs a gate 86 and auger conveyor 87, and wherein gate 86 is gate valve, is led to The mode for crossing pull is opened and is closed, for controlling and blocking the channel between housing cavity and auger conveyor, spiral Conveyer is driven by motor, and can realize quantitative conveying powder, for dispensing.
Instantly the powder in cavity 814 adds up to a certain extent, auger conveyor can be directly pressed in the form of pressure Feed inlet forms accumulation, when easily lump, second is that additional resistance is caused to auger conveyor, so, in the present embodiment, One cutting plate 88 is set in the discharge outlet of lower cavity 814, which is triangle, such as triangle housing, with welding Mode is fixed, and material can form the support of part in cutting plate, that is to say, that the partial pressure of powder directly acts on point On flitch, mitigate the influence to auger conveyor, can solve the problem above-mentioned.
The top of above-mentioned collection device upper box is connected to third deduster 3 by pipeline, which acts on In dedusting, and collect a small amount of dust of spilling.
By above-mentioned implementation, the multi-stage crushing in the case of Geldart-D particle can be realized, and without leakage, the rank crushed In the micron-scale, required micron-sized product can be obtained.
Above-mentioned multistage rotary dust collector plays the role of power in process of pneumatic transmission, can convey powder backward, Meanwhile during conveying, material is fluid state rather than is stacking states, and the powder of dispersion, can be with when passing through fine grinding With smaller flow, larger flow velocity is quickly through and after the grinding of fine grinding, finally the dynamics of powder out can be controlled System realizes high efficiency, the purpose of inexpensive grinding under 1 micron.
Whole system, will not blockage phenomenon easily due to above-mentioned advantage.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the model of the present invention It encloses and is defined, under the premise of design spirit of the present invention is not departed from, various changes of the relevant technical staff in the field to the present invention Shape and improvement should all expand as determined by claims of the present invention in protection domain.

Claims (8)

1. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system, which is characterized in that including:From front to back according to The suction hose (4) of secondary setting, the first deduster (1), corase grinding (5), the first fine grinding (6), the second deduster (2), the second fine grinding (7), powder collecting device (8) and third deduster (3), wherein,
Suction hose (4) is installed additional using bellows, and in the end of suction hose (4) for being inserted into the stainless steel suction in saggar Mouth, the other end of the suction hose (4) are connected to the feed inlet of the first deduster (1) by pipeline;
First deduster (1) the filtering rank is 1 μm, and the first deduster is by upper box (11), middle case (12), lower box (13) it forms, upper, middle and lower babinet is chamber structure, and filtration (14), the filtering are set between middle case and upper box Structure includes a level board and several filter element of duster (15) through level board, and the filtering rank of the filter element of duster is 1 μm, connect a powerful negative-pressure air fan (16), and mesh removing less than 1 μm is set in the top exit of upper box (11) Dirt cloth bag (17), during work, material enters middle case (12) from air duct, and material falls directly into lower box, and the first deduster is fallen Material mouth lower end connection corase grinding (5),
It roughly grinds (5), abrasive grain precision passes through pipeline and be connected in next first fine grinding (6) at 12 microns, and abrasive grain precision is 2 Micron, and the discharge port of the first fine grinding (6) is connected to the feed inlet of the second deduster (2) by pipeline, wherein, the second deduster It is 1 μm to filter rank, and the dust-removal cloth-bag (17 ') that mesh is less than 1 μm is installed at the negative-pressure air fan outlet mouth of pipe of the second deduster, Described second fine grinding (7) abrasive grain precision is at 1 micron, the discharge port mounted on the second deduster (2) lower end, second fine grinding (7) discharge port is connected to the feed inlet of powder collecting device by pipeline;
The powder collecting device (8) includes:
Housing, housing (81) top are rectangle, and lower part is pyramid shape;
Upper part of the housing inner cavity is divided into upper plenum (812) and hollow cavity (813) by one horizontally disposed partition board (811), it is described every Several through-holes are opened up on plate (811) and a filter core (82) is installed in each through-hole;
Wherein, the filtering accuracy of the filter core (82) is not more than 5 microns, and air nozzle is arranged on the top of each filter core (82) (83), the air nozzle is connect with high-pressure air source;
One negative pressure ventilation pipeline (84) on the overhead cavity shell of housing (81) is set, is connected, and pass through with third deduster (3) Third deduster (3) connects exhaust fan;One feed inlet (85), the discharging below lower cavity are set in the middle part of the hollow cavity One gate (86) is installed between mouth and auger conveyor (87).
2. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder according to claim 1, fine grinding system, feature exist In first fine grinding crushes steel mill using mine vertical.
3. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder according to claim 1, fine grinding system, feature exist In the corase grinding (5) is Vertical Mill.
4. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder according to claim 1, fine grinding system, feature exist In the gate (86) is gate valve.
5. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder according to claim 1, fine grinding system, feature exist In in discharge outlet one cutting plate (88) of setting of lower cavity (814).
6. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder according to claim 5, fine grinding system, feature exist In the cutting plate is the triangle that tip is set upward, and mounted on the middle position of discharge port.
7. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder according to claim 1, fine grinding system, feature exist In, be independent between each air nozzle, in the tracheae where each air nozzle set a solenoid valve (831), solenoid valve with The mode of pulse is blown.
8. a kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder according to claim 1, fine grinding system, feature exist In the filtering accuracy of the filter core (82) is one kind in 1,2,3,4 micron.
CN201510582576.8A 2015-09-15 2015-09-15 A kind of Geldart-D particle for producing no vanadium rare-earth-based titanium tungsten powder, fine grinding system Active CN105149070B (en)

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CN108996257B (en) * 2018-05-24 2019-04-26 包头市三隆稀有金属材料有限责任公司 A kind of Rare Earth Electrolysis raw material automatic delivery

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Denomination of invention: A pneumatic conveying and fine grinding system for producing vanadium free rare earth based titanium tungsten powder

Effective date of registration: 20220630

Granted publication date: 20180622

Pledgee: Shandong Guangrao Rural Commercial Bank Co.,Ltd.

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Registration number: Y2022980009534