CN104567422A - Spiral unloading device and spiral unloading machine with same - Google Patents
Spiral unloading device and spiral unloading machine with same Download PDFInfo
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- CN104567422A CN104567422A CN201510003191.1A CN201510003191A CN104567422A CN 104567422 A CN104567422 A CN 104567422A CN 201510003191 A CN201510003191 A CN 201510003191A CN 104567422 A CN104567422 A CN 104567422A
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- helicallobe
- unloading device
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Abstract
The invention discloses a spiral unloading device and a spiral unloading machine with the same. The spiral unloading device comprises a rotation shaft, first spiral blades and second spiral blades. The rotation shaft is divided into a first shaft section and a second shaft section. The first spiral blades are arranged at the first shaft section, the second spiral blades are arranged at the second shaft section, and the spiral directions of the first spiral blades are opposite to the spiral directions of the second spiral blades, so that the first spiral blades can discharge materials towards the first end of the rotation shaft, and the second spiral blades can discharge materials towards the second end of the rotation shaft. By means of the spiral unloading device and the spiral unloading machine, the spiral unloading device is designed flexibly according to the unloading amount of an unloading region, different numbers, pitches or extending direction of the first spiral blades and the second spiral blades can be arranged according to the unloading amount, and accordingly, the unloading efficiency can be improved apparently, and the operation cost is reduced.
Description
Technical field
The invention belongs to metallurgical technology field, specifically, the present invention relates to a kind of screw unloading device and there is its screw discharging machine.
Background technology
In steel and iron industry rotary hearth furnace direct-reduction technique, high temperature (such as 1200 DEG C) direct-reduction iron product, be screw discharging machine by the specialized equipment unloading out continuously from stone or metal plate for standing a stove on as a precaution against fire, screw discharging machine has many flights, and many helicallobes are pressed constant pitch, same to rotation direction, arranged with inclination angle.When major axis rotates, blade continuously pushes the material on stone or metal plate for standing a stove on as a precaution against fire to side, flows into material acceptance glide chute, is sent to the cooling mechanism of subsequent processing, or tank filling or chain bucket heat are delivered in smelting furnace.
The blade set-up mode of existing screw discharging machine is single, the blade pitch on total length axle, blade head number, and hand of spiral is all the same.Blade is on rotary hearth furnace stone or metal plate for standing a stove on as a precaution against fire, how many regardless of undertaken discharging quantity, regardless of discharge direction, no matter even wearing is no, all the same, obviously there is following defect and deficiency:
1. rotary furnace bottom disk is an annular arrangement, and internal-and external diameter difference is larger.For middle-size and small-size rotary hearth furnace, the wide 4 ~ 5m of annular stone or metal plate for standing a stove on as a precaution against fire, interior outside different diameters 1.6 ~ 2.0 times; But inner and outer ring limit by the doses difference of scraping delivery up to more than 6 times.For large-scale rotary hearth furnace, the wide 7 ~ 10m of stone or metal plate for standing a stove on as a precaution against fire, internal-and external diameter differs 1.25 times, but inner and outer ring limit needs the doses difference of scraping delivery up to more than 9 times.Current design then complete by maximum scrape push throughput rate to arrange blade thickness, highly, head number, pitch etc., cause waste and wearing and tearing uneven.
2. because flight is to lopsidedness, cause furnace charge under blade scrapes the effect of thrust amount, stone or metal plate for standing a stove on as a precaution against fire is stressed to direction, side, stone or metal plate for standing a stove on as a precaution against fire moves outward, eccentric gradually, knock furnace wall when stone or metal plate for standing a stove on as a precaution against fire displacement exceedes preset clearance, chuck accident will occur, stone or metal plate for standing a stove on as a precaution against fire and outer wall equipment is damaged time serious, rotary hearth furnace cannot operate, have to blowing out, cooling, maintenance, impact is produced and is normally carried out.
3. after rotary hearth furnace scale maximizes, as produced 60 ~ 1,000,000 tons of reduced irons per year, per hourly 80 ~ 130 tons of material to be scraped from stone or metal plate for standing a stove on as a precaution against fire.Current screw discharging machine, has a lot of difficulty from the setting of pitch, depth of blade, rotating speed, blade head number, does not completely become so large transportation volume.Because this machine scrapes the high bed of material of one deck 25 ~ 35mm on stone or metal plate for standing a stove on as a precaution against fire, only has side discharging opening.Expect thin, go out to few, limit the ability of screw discharging machine.So on our times, rotary hearth furnace maximum production is successfully just hovered in 400,000 tons/year of scales, cannot break through.Several small-scale devices have to be built come more, add investment and take up an area, unfavorable in productive costs.
Summary of the invention
The present invention is intended at least to solve one of technical matters existed in prior art.For this reason, the present invention proposes a kind of screw unloading device, described screw unloading device have discharging efficiency high, can the advantage of two-way discharging.
According to an aspect of the present invention, the present invention proposes a kind of screw unloading device, comprising:
Rotating shaft, described rotating shaft is divided into the first shaft part and the second shaft part;
First helicallobe and the second helicallobe, described first helicallobe is located on described first shaft part, described second helicallobe is located on described second shaft part, the hand of spiral of described first helicallobe so that described first helicallobe contrary with the hand of spiral of described second helicallobe towards the first end discharge of described rotating shaft and described second helicallobe towards the second end discharge of described rotating shaft.
Thus, the screw unloading device of the above embodiment of the present invention is according to the discharging quantity flexible design of discharge zone, and the blade often organized can have different numbers, pitch or bearing of trend according to discharging quantity, and then can significantly improve discharging efficiency, reduces operating cost.
In some embodiments of the invention, described first helicallobe is different with the blade number of described second helicallobe.According to discharging quantity flexible blade number, discharging efficiency can be improve thus while economizing on material thus.
In some embodiments of the invention, described first helicallobe is different with the pitch of described second helicallobe.Pitch equally along with discharging quantity change, and then makes each blade wear away evenly, improves the service life of screw unloading device.
In some embodiments of the invention, the inclination angle of described first helicallobe and the inclination angle of described second helicallobe different from each other.The first helicallobe and the second helicallobe inclination angle can be regulated according to the difference of discharging quantity needed for the first shaft part and the second shaft part thus, reach and complete different discharging quantities in same time.
In some embodiments of the invention, described first helicallobe comprises multiple first blades, and the pitch of multiple described first blades is different from each other.The discharging in material skewness situation in the first shaft part can be adapted to thus.
In some embodiments of the invention, the angle of inclination of multiple described first blades is different from each other.The discharging in material skewness situation can be adapted to thus.
In some embodiments of the invention, described second helicallobe comprises multiple second blades, and the pitch of multiple described second blades is different from each other.The discharging in material skewness situation in the second shaft part can be adapted to thus.
In some embodiments of the invention, the angle of inclination of multiple described second blades is different from each other.The discharging in material skewness situation in the second shaft part can be adapted to thus.
In some embodiments of the invention, described rotating shaft is hollow shaft, and the inner chamber of affiliated hollow shaft is cooling-gallery.The temperature of screw unloading device can be reduced thus, prevent friction from overheatedly causing loss to device.
According to a second aspect of the invention, the present invention proposes a kind of screw discharging machine, be located on the stone or metal plate for standing a stove on as a precaution against fire of rotary hearth furnace, described screw discharging machine comprises:
The screw unloading device of preceding embodiment;
Bearing seat, described bearing seat is by rotating shaft described in bearings;
Driving device, described driving device is connected to drive described axis of rotation with described rotating shaft.
Thus, above-mentioned screw discharging machine can meet the discharging application of various equipment, and this screw discharging machine only has an actuator drives screw unloading device rotation.Thus, according to a particular embodiment of the invention, when having two vane group in screw unloading device, and the bearing of trend of blade in two vane group is when being contrary, an actuator drives screw unloading device is equally only needed to rotate the object that can reach two-way discharging, discharging efficiency can be significantly improved thus, and save energy consumption.
Screw discharging machine according to the above embodiment of the present invention, driving device for driving is constant, the blade number of the first helicallobe and the second helicallobe, pitch or bearing of trend can be adjusted according to the difference of discharging quantity, the abrasion of each blade can be made thus to be uniform, to meet high yield and the needs to both direction discharging simultaneously.Therefore, the screw discharging machine smart structural design of the above embodiment of the present invention, economizes on material, easy to use, longer service life.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of screw unloading device according to an embodiment of the invention.
Fig. 2 is the structural representation of screw discharging machine according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " cw ", " conter clockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be that electric welding connects; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, particular case above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 1, the screw unloading device according to the embodiment of the present invention is described.As shown in Figure 1, the screw unloading device 100 according to the embodiment of the present invention comprises: rotating shaft 10, and rotating shaft 10 is divided into the first shaft part 11 and the second shaft part 12; 20 first helicallobes and the second helicallobe 30, first helicallobe 20 is located on the first shaft part 11, second helicallobe 30 is located on the second shaft part 12, the hand of spiral of described first helicallobe 20 so that described first helicallobe 20 contrary with described second helicallobe 30 hand of spiral towards first end 13 discharge of described rotating shaft 10 and the second helicallobe 30 to the second end 14 discharge of rotating shaft 10.
Thus, the screw unloading device of the above embodiment of the present invention goes for the discharging of high temperature reduction iron on metallurgical industry direct-reduction rotary hearth furnace stone or metal plate for standing a stove on as a precaution against fire.This screw discharging machine is different from traditional screw discharging machine, and it only has a rotating shaft, by this rotating shaft is divided into two shaft parts, the hand of spiral of the helicallobe on two shaft parts is contrary, finally reaches the object of the two ends discharging to rotating shaft.Adopt thus the above embodiment of the present invention screw unloading device can effectively by the material on stone or metal plate for standing a stove on as a precaution against fire from center to edge discharge, and then eliminate the discharging path of half material, without significantly saving energy consumption, improve discharging efficiency, can also effectively prevent simultaneously due to long-term to a direction discharging make stone or metal plate for standing a stove on as a precaution against fire also long-time stressed to direction, side and move outside the stone or metal plate for standing a stove on as a precaution against fire that causes, eccentric or chuck accident.
According to a particular embodiment of the invention, described first helicallobe is different with the number of described second helicallobe, specifically can design according to the discharging quantity at this position.According to another specific embodiment of the present invention, described first helicallobe is different with the pitch of described second helicallobe.According to another specific embodiment of the present invention, the inclination angle of the second helicallobe in the inclination angle of the first helicallobe in first paragraph rotating shaft and second segment rotating shaft is different from each other.Ensureing to two while contrary oppositely loading and unloading material thus, control discharging quantity can also be opened by the angle of adjustable inclination, and then meet cloth on stone or metal plate for standing a stove on as a precaution against fire uneven when, the discharging at two ends is completed simultaneously, and is unlikely to a certain shaft part and writes material in advance and dally.Adopt the screw unloading device of the above embodiment of the present invention can according to the number of distribution flexible first helicallobe of discharge zone doses and described second helicallobe, pitch or inclination angle thus, accomplish as far as possible corresponding with unloading performance, each blade discharging quantity is as far as possible equal.This screw unloading apparatus structure is novel, is skillfully constructed, and diverse in function is with strong points.Under the prerequisite meeting various discharging, helicallobe even wearing can be made, increase the service life, economize on material, energy-conservation, easy to use, reduce operating cost.
According to a particular embodiment of the invention, the first helicallobe comprises multiple first blades, and the pitch of multiple described first blades is different from each other; The angle of inclination of multiple described first blades is different from each other, specifically can design according to the discharging quantity at discharging position.Even if can ensure that the discharging quantity of each first blades is different thus, but the abrasion of each first blades are uniform.The mean life of screw unloading device can be improved thus further.
According to a particular embodiment of the invention, the second helicallobe comprises multiple second blades, and the pitch of multiple described second blades is different from each other; The angle of inclination of multiple described second blades is different from each other.Specifically can design according to the discharging quantity at discharging position.Even if can ensure that the discharging quantity of each second blades is different thus, but the abrasion of each second blades are uniform.The mean life of screw unloading device can be improved thus further.
It should be noted that, according to relating to the inclination angle or angle of inclination difference that obtain in embodiments of the invention, all referring to that roughly bearing of trend is identical, under namely ensureing the prerequisite that the direction of discharging is constant, changing inclination angle or angle of inclination.
According to a particular embodiment of the invention, when above-mentioned screw unloading device is used for extensive and output is high rotary hearth furnace, by adopting the screw unloading device of the above embodiment of the present invention, hot reduced iron can be sent into two cooling mechanisms and cooling; Also a part of hot reduced iron can be delivered to cooling mechanism, another part hot reduced iron heat delivers to smelting furnace; Also can send into two hot batch cans, be shipped in smelting furnace.The screw unloading device of the embodiment of the present invention can be suitable for the different discharging demands of rotary hearth furnace thus, therefore, adopt the screw unloading device with diversified material unloading function of the above embodiment of the present invention, the functionalization of rotary hearth furnace can be significantly improved, make production more convenient, save energy consumption.
Not only can reduce the discharging length of about half discharging quantity according to the screw unloading device of the embodiment of the present invention, and then improve discharging efficiency, save energy consumption simultaneously.In addition, can also the lateral thrust of active balance discharging to contrary both direction discharging, to avoid by the equipment of discharging, owing to causing lateral thrust to offset to a direction to same direction material conveying, causing damage to equipment.
According to another aspect of the present invention, the invention allows for a kind of screw discharging machine.The screw discharging machine of the specific embodiment of the invention is described in detail below with reference to Fig. 2.
Screw discharging machine according to the embodiment of the present invention specifically comprises: foregoing screw unloading device 100; Driving device 200, bearing seat 300.
Wherein, driving device 200 is connected with rotating shaft 10; Drive during turning cylinder and rotate; Bearing seat 300 is set in rotating shaft 10.
Thus, above-mentioned screw discharging machine can meet the discharging application of various equipment, and this screw discharging machine only has an actuator drives screw unloading device rotation.Thus, according to a particular embodiment of the invention, when having two vane group in screw unloading device, and the bearing of trend of blade in two vane group is when being contrary, an actuator drives screw unloading device is equally only needed to rotate the object that can reach two-way discharging, discharging efficiency can be significantly improved thus, and save energy consumption.
Screw discharging machine according to the above embodiment of the present invention, driving device for driving is constant, the number of each group of blade, pitch or bearing of trend can be adjusted according to the difference of discharging quantity, the abrasion of each blade can be made thus to be uniform, to meet high yield and the needs to both direction discharging simultaneously.Therefore, the screw discharging machine smart structural design of the above embodiment of the present invention, economizes on material, easy to use, longer service life.
According to a particular embodiment of the invention, the advantage that the foregoing screw unloading device of the present invention has and effect are equally applicable to the screw discharging machine of the above embodiment of the present invention, do not repeat them here.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a screw unloading device, is characterized in that, comprising:
Rotating shaft, described rotating shaft is divided into the first shaft part and the second shaft part;
First helicallobe and the second helicallobe, described first helicallobe is located on described first shaft part, described second helicallobe is located on described second shaft part, the hand of spiral of described first helicallobe so that described first helicallobe contrary with the hand of spiral of described second helicallobe towards the first end discharge of described rotating shaft and described second helicallobe towards the second end discharge of described rotating shaft.
2. screw unloading device according to claim 1, is characterized in that, described first helicallobe is different with the number of described second helicallobe.
3. screw unloading device according to claim 1 and 2, is characterized in that, described first helicallobe is different with the pitch of described second helicallobe.
4. the screw unloading device according to any one of claim 1-3, is characterized in that, the inclination angle of described first helicallobe and the inclination angle of described second helicallobe different from each other.
5. the screw unloading device according to any one of claim 1-4, is characterized in that, described first helicallobe comprises multiple first blades, and the pitch of multiple described first blades is different from each other.
6. screw unloading device according to claim 5, is characterized in that, the angle of inclination of multiple described first blades is different from each other.
7. the screw unloading device according to any one of claim 1-4, is characterized in that, described second helicallobe comprises multiple second blades, and the pitch of multiple described second blades is different from each other.
8. screw unloading device according to claim 7, is characterized in that, the angle of inclination of multiple described second blades is different from each other.
9. the screw unloading device according to any one of claim 1-8, is characterized in that, described rotating shaft is hollow shaft, and the inner chamber of affiliated hollow shaft is cooling-gallery.
10. a screw discharging machine, is located on the stone or metal plate for standing a stove on as a precaution against fire of rotary hearth furnace, it is characterized in that, described screw discharging machine comprises:
Screw unloading device according to any one of claim 1-9;
Bearing seat, described bearing seat is by rotating shaft described in bearings;
Driving device, described driving device is connected to drive described axis of rotation with described rotating shaft.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003191.1A CN104567422B (en) | 2015-01-04 | 2015-01-04 | Screw unloading device and screw discharging machine with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003191.1A CN104567422B (en) | 2015-01-04 | 2015-01-04 | Screw unloading device and screw discharging machine with it |
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| CN104567422A true CN104567422A (en) | 2015-04-29 |
| CN104567422B CN104567422B (en) | 2018-11-30 |
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| CN201510003191.1A Active CN104567422B (en) | 2015-01-04 | 2015-01-04 | Screw unloading device and screw discharging machine with it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287457A (en) * | 2017-07-17 | 2017-10-24 | 中国恩菲工程技术有限公司 | Rare earth ore concentrate continuous decomposition equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107287457B (en) * | 2017-07-17 | 2023-01-13 | 中国恩菲工程技术有限公司 | Continuous decomposition equipment for rare earth concentrate |
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| CN104567422B (en) | 2018-11-30 |
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