奥地利专利AT510896A1 METHOD AND DEVICE FOR PROMOTING ELIGIBLE MATERIALS

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优先权

专利摘要:
The invention relates to a method and a device for feeding of eligible materials through a pressure-sealed by the outside air cavity, which is supplied via a serving as a lock reservoir (2) with materials (1) and opens through a connecting pipe in the furnace chamber. The conveying of the materials within the pressure-tight closed by the outside air cavity by means of non-pressure mechanical conveyor (3, 5).
公开号:AT510896A1
申请号:T54/2009
申请日:2009-01-15
公开日:2012-07-15
发明作者:Kurt Himmelfreundpointner
申请人:Kurt Himmelfreundpointner；
IPC主号:

专利说明:

4 * * · ·· # * * • • t · · · * · · · * HP 04
description
The invention relates to a method and a device for conveying eligible materials. "Materials" in the sense of this description also include mixtures of materials. These can include solid particles and liquids, whereby size distribution and old of the solids, as well as type and proportion of the contained liquids can vary within wide ranges. "Eligible" in the sense of this description means that the material is flowable and / or pourable and / or pasty.
An advantageous application is the delivery of eligible materials in reaction furnaces.
An extremely advantageous application is the delivery of eligible materials to and in the opposite pressure to the atmosphere under considerable pressure pressure zone of shaft furnaces for pig iron production. Thus mixtures of materials, which are otherwise regarded as problematic materials whose disposal in total costs caused, can be used profitably and in the overall view with a reduction of environmental impact and thus disposed of. Typical suitable mixtures of substances contain carbon or carbon compounds such as oils, greases, varnishes, tar, adhesives, as well as iron-containing chips, dusts, scale, slags as they occur in steel extraction and steel processing.
According to DE 37 18 568 C1 flowable material, which consists of carbon granules and water is fed by a Dickstaffpumpe a fluidized bed furnace. So that the material can be pumped sufficiently well ("has sufficient hydraulic Förderbarkett") is added to the granules in several mixers, which also cause a reduction in the grain size of the granules, water. Its fluidity is measured continuously. Once the material is sufficiently fluid, it is pumped into the furnace. For material mixtures as described in the previous paragraph 2, the method is not robust enough; the addition of water means a considerable disadvantage for the subsequent combustion process in any case with respect to the energy balance.
WO 2007/035974 A1 describes the pressurized supply of a flowable material, which may contain solid and liquid components to processing plants
Page 1 • ft ft * ft * ft * ft * ft * ft ft ft ft ft ft ft ft ft ft ft. Ft. Ft In particular, HP 04 is running combustion ovens. The processed material is first mixed, then conveyed without pressurization as close to the point of introduction to the processing plant and then introduced by a pump under pressure in the processing plant. Non-pressurized conveying, typically with shaftless augers, is generally quite robust to variations in the properties of the material to be conveyed. Moreover, since ultimately only pressurized is conveyed by way of a very short path, the teaching from WO 2007/035974 A1 also allows the above-mentioned problematic material mixtures containing iron and carbon to be fed into the pressure zone of shaft furnaces for the production of pig iron. The most significant remaining disadvantage is unpleasant high wear due to abrasion of those equipment parts of the non-pressure operated conveyor line, which are in contact with the material to be conveyed.
The object underlying the invention is to provide a method and an apparatus for conveying eligible materials, which may be mixed from liquids and solids particles. The conveyance should be robust to variations in composition, particle size distribution and other material properties, e.g. Viscosity, thixotropy, etc. of the pumped material work and even if the materials to be conveyed contain abrasive particles, the system parts coming into contact with it should wear as little as possible.
To solve the problem it is proposed that the material to be conveyed within a Hohtraumes, which has a feed opening and outlet opening for the material to move both by drucktos working, mechanical conveyor, as well as by means of a pressure pump.
Pressure-free mechanical conveyors for the purposes of this invention are those in which it is not necessary for the conveying function that propagates a pressure ln the material to be conveyed along the conveyor line, or that a gaseous or liquid conveying medium moves the material to be conveyed, but in the material to be conveyed is moved substantially by direct contact with a moving surface of the conveyor.
Page Z · · · «* * * * * * * * * * Ml« HP 04
The invention is further exemplified in the simple and advantageous special 'case explains that said cavity is a pipe and the non-pressure mechanical conveyor a screw conveyor.
At first glance, the cost of conveying material according to the invention appears to be high. In fact, however, when pumping abrasive materials over the life of a conveyor system working accordingly, this results in a considerable cost saving compared to a mode in which either only one pump or only one screw conveyor is used. Namely, a less efficient pump and a less efficient conveyor screw can be used in the combination Above all, the combination can be operated with very little wear and with very little energy expenditure, which means that the operating-hour-dependent costs are very low.
The invention will be explained in more detail with reference to a drawing:
1 shows a partial sectional view of a schematic diagram of an exemplary embodiment of an inventive working conveyor line. Via the filling hopper 1, the material to be conveyed comes into a pump 1. For the pump 1, the "heavy-matter pump" is used. in the market offered pumps into consideration. Very good experiences have been made with the use of an eccentric screw pump as pump 1.
The pump 1 presses the material to be conveyed through a arranged in the vicinity of one end of the tube 3 feed opening 3.1 in the tube 3, soft represents the conveyor line. In the pipe 3, the material is moved to the opposite end by the built-up of the pump 1 discharge pressure and by the pipe 3 extending, driven by a drive 5 axis-guided screw conveyor 4. At the inlet opening opposite the end of the tube 3 whose outlet opening 3.2 is arranged, through which the material is again pushed out of the tube 3 and also falls out. If one did not use a screw conveyor 4, but only a pump 2, then it would have to promote with much greater pressure to push the material through the rising pipe 3 as required in the illustrated arrangement. Thus, a much stronger and more expensive pump would have to be used, as in the case of the invention. In the case of the invention, it is shown in FIG. 3. The procedure according to the invention is the case. It would also have to be designed for much higher pressure plant components. In general, one would not be able to overcome such high altitudes and such wide horizontal distances with a single conveyor section, and one would have greater restrictions on the permissible characteristics of the material to be conveyed. If one were to use only one screw conveyor 4 and no pump 2, then the screw conveyor 4 would have to be arranged adjacent to the pipe at least at the lower cross-sectional area of the pipe and it would have to rotate very quickly in order to obtain reasonably liquid material or a liquid portion of the material tending to fall down to lift. In connection with hard and abrasive particles in the material to be conveyed would be by jamming of particles of the material between auger and pipe wall and by the high relative speed between material to be conveyed and plant parts and between plant components with each other to significant removal of the pipe wall and the screw conveyor.
It makes sense to control the screw conveyor and pump so that if too high a resistance is detected at one of the two parts pump or screw conveyor, the other part is subjected to higher drive power. The optimum settings in this respect depend on the plant dimensions and the properties of the material to be conveyed and are essentially to be determined empirically. If, for a filled pipe, the conveyor line has to be shut off for any reason, the conveyor screw 4 can still be moved slowly from time to time or continuously to avoid segregation and packing, ie dangerous increase in viscosity of the material to be conveyed.
Because of this stirring action and also to prevent abrasion in the gap between the pipe wall and screw conveyor, it is advantageous to choose the radial minimum distance between axis-guided screw conveyor 4 and inner surface of the tube larger than the largest are in the material to be conveyed hard particles.
Due to their wide and soft elastic deformability, a smaller gap between pipe wall and auger can be provided when using non-axis screw conveyors.
It is advantageous to arrange the drive 5 for the screw conveyor 4 at that end of the tube 3 at which the outlet opening 3.2 for the material to be conveyed is located.
Page 4 det. In the area of this end, the material to be conveyed has a significantly lower hydrostatic pressure than at the pump near end of the tube. This makes it easier, the bearing on which the shaft which feed screw 4 and drive 5 connects, passes through the end face of the tube 5, perform sufficiently pressure-resistant to avoid disturbing flow of material into and through the camp. If, nevertheless, high pressures in the area of the bearing are to be expected, the bearing should be subjected to pressure lubrication from the outside.
As already mentioned, the conveying method according to the invention is advantageously applicable for introducing eligible material into the pressure zone of shaft furnaces for the production of pig iron. The relevant entry points into the shaft furnace are normally arranged at a height of five to fifteen meters above the location at which the material can be delivered by vehicle. The distances in the horizontal direction are typically in the order of 60 to 150 meters. To overcome most of these distances, the described conveying method according to the invention is outstandingly suitable. Only in the very last part of the entire conveying path, namely directly into the hot pressure zone of the shaft furnace, can it be more advantageous to pressurize with a smaller conveying cross-sectional area and pressurized or in combination with pressurized and conveyed medium.
A single conveyor section, the most essential part of which is a pump, a cavity, and a mechanical conveyor operating therein without pressure, is typically several meters, for example 10 meters long. It can easily any number of individual such conveyor sections are lined up, so that it can be formed for difficult to be conveyed materials arbitrarily long conveyor lines.
Preferably on longer sloping or horizontally extending, not or only slightly curved sections of longer conveyor lines, it is possible and advantageous to convey promoted or subsidized. This means that the material to be conveyed in a pipe at least supported by the action of a flowing in the pipe conveyor, which is a good flowable medium such as typically compressed air, is moved. For this purpose, the conveying medium is pumped into the conveying path at the beginning of such a conveying section and can be produced at the end of such conveying sections at a deposition stage, such as, for example, a cyclone. Φ · Φ * · φ * · I Φ φ t * Φ · φ φ «φ« φ «φ φ φφ φφ φ φφ φφ φφ φφ« φ φ φφ φφφφ HP 04 may also be left out. The conveying by means of funding is generally not as robust against clogging as the method described in which the material itself is pumped and additionally moved without pressure, so it can be a-ber with relatively little equipment expense at relatively high speed drive through.
It should also be noted that it is also possible within the scope of the invention to use other non-pressurized mechanical conveying means as conveying screws and that the cavity in which material is conveyed according to the invention may also have a different shape than that of a pipe.
page 6

权利要求:
Claims (10)
[1]
* φ * * t * * * * ·· φ * * * · · · Φ Φ φ I »Φ · I · · · · · Φ IV * * ·· Φ Φ« φ · φ · * • * · I · 1. A method for conveying eligible materials, characterized in that the material to be conveyed within a cavity (3) between a feed opening (3.1) and a Outlet (3.2) is moved both by means of pressure-less mechanical conveyor (4) and by means of pressure pump (2).
[2]
2. The method according to claim 1, characterized in that it is used to promote eligible material in a reaction furnace.
[3]
3. The method according to claim 2, characterized in that it is used to promote eligible material in the pressure zone of a shaft furnace for the production of pig iron.
[4]
4. The method according to claim 3, characterized in that in the last part of the conveying path is conveyed exclusively pressurized.
[5]
5. The method according to any one of the preceding claims, characterized in that is conveyed in a subsection of the conveying path at least by means of support by a conveyor.
[6]
6. A device for conveying eligible materials by means of a pressure pump through a supply opening into a cavity and through an outlet opening out of this cavity addition, characterized in that in the cavity (3) a non-operating mechanical conveyor (4) is arranged.
[7]
7. Apparatus according to claim 6, characterized in that the conveyor (4) is a screw conveyor. 6. Apparatus according to claim 7, characterized in that the cavity (3) is a tube and that the drive (5) for the screw conveyor and outlet opening (3.2) are in the region of the same end of the tube.
[8]
9. Apparatus according to claim 6 or 7, characterized in that the screw conveyor is guided by the axis and that the radial distance between the screw conveyor and the surrounding walls of the cavity is at least as large as the largest solid parts, which may include the eligible material.
[9]
10. Direction according to one of claims 5 to 8, characterized in that it leads to the pressure zone of a shaft furnace for the production of pig iron. Page 7 HP 04
[10]
11. The device according to claim 9, characterized in that between the apparatus according to claim 8 and the pressure zone of the shaft furnace for the production of pig iron is interposed exclusively a pressurized working conveyor line. page 6

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AU2010205836A1|2011-08-11|

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引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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AT502048B1|2005-09-28|2007-01-15|Himmelfreundpointner Kurt|Processing plant e.g. combustion furnace, charging method, involves introducing flowing process material into processing plant via conveyor line under pressure, and mixing flowing process material before its pressurization|

EP2297519B1|2008-06-05|2014-05-07|Kurt Himmelfreundpointner|Method and device for feeding conveyable materials to reaction furnaces|

AT510896B1|2009-01-15|2013-08-15|Kurt Himmelfreundpointner|METHOD AND DEVICE FOR PROMOTING ELIGIBLE MATERIALS|AT510896B1|2009-01-15|2013-08-15|Kurt Himmelfreundpointner|METHOD AND DEVICE FOR PROMOTING ELIGIBLE MATERIALS|

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法律状态:
2020-09-15| MM01| Lapse because of not paying annual fees|Effective date: 20200115 |

优先权:

申请号 | 申请日 | 专利标题

ATA54/2009A|AT510896B1|2009-01-15|2009-01-15|METHOD AND DEVICE FOR PROMOTING ELIGIBLE MATERIALS|ATA54/2009A| AT510896B1|2009-01-15|2009-01-15|METHOD AND DEVICE FOR PROMOTING ELIGIBLE MATERIALS|

UAA201108479A| UA108839C2|2009-01-15|2010-01-14|METHOD AND DEVICE FOR TRANSPORTING MATERIALS SUITABLE FOR TRANSPORT|

SI201031969T| SI2382420T1|2009-01-15|2010-01-14|Method and device for transporting flowable materials|

KR1020117018940A| KR20110116172A|2009-01-15|2010-01-14|Method and device for delivering deliverable materials|

AU2010205836A| AU2010205836B2|2009-01-15|2010-01-14|Method and device for delivering deliverable materials|

CN201080004085.0A| CN102439362B|2009-01-15|2010-01-14|The method and apparatus of the material that conveying can be carried|

PL10700384T| PL2382420T3|2009-01-15|2010-01-14|Method and device for transporting flowable materials|

JP2011545682A| JP5843286B2|2009-01-15|2010-01-14|Method and apparatus for transporting portable material|

PCT/EP2010/000175| WO2010081703A2|2009-01-15|2010-01-14|Method and device for delivering deliverable materials|

CA2749749A| CA2749749C|2009-01-15|2010-01-14|Method and device for conveying conveyable materials|

EP10700384.0A| EP2382420B1|2009-01-15|2010-01-14|Method and device for transporting flowable materials|

EA201190104A| EA021426B1|2009-01-15|2010-01-14|Method and device for delivering deliverable materials|

ES10700384T| ES2766952T3|2009-01-15|2010-01-14|Procedure and device for the transport of transportable materials|

US13/144,712| US9074768B2|2009-01-15|2010-01-14|Method and device for delivering deliverable materials|

ZA2011/05707A| ZA201105707B|2009-01-15|2011-08-03|Method and device for delivering deliverable materials|

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