CN114061324A - Large flue ash discharging device and method for hydraulic sintering machine - Google Patents

Large flue ash discharging device and method for hydraulic sintering machine Download PDF

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Publication number
CN114061324A
CN114061324A CN202111409007.5A CN202111409007A CN114061324A CN 114061324 A CN114061324 A CN 114061324A CN 202111409007 A CN202111409007 A CN 202111409007A CN 114061324 A CN114061324 A CN 114061324A
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China
Prior art keywords
valve box
rotary
oil cylinder
material plate
feeding
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Pending
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CN202111409007.5A
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Chinese (zh)
Inventor
逯红
毕衍涛
李俄东
冯俊
郭亚南
王晓蕾
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SD Steel Rizhao Co Ltd
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SD Steel Rizhao Co Ltd
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Priority to CN202111409007.5A priority Critical patent/CN114061324A/en
Publication of CN114061324A publication Critical patent/CN114061324A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/002Details of the installations, e.g. fume conduits or seals

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

The invention provides a large flue ash discharging device and an ash discharging method for a hydraulic sintering machine, which comprise the following steps: a first valve housing and a second valve housing; the first valve box is mounted to the upper end of the second valve box; the upper end of the first valve box is provided with a first feeding hole, and the lower end of the first valve box is provided with a first discharging hole; the upper end of the second valve box is provided with a second feeding hole, and the lower end of the second valve box is provided with a second discharging hole; a first discharge port of the first valve box is matched with a second feed port of the second valve box; a first rotary feeding control component is arranged at a first feeding port of the first valve box; the first rotary feeding control assembly is connected with a first rotary oil cylinder; the first rotary oil cylinder drives the first rotary feeding control assembly to rotate, and controls the opening and closing of the first feeding hole of the first valve box. The ash discharging process does not need pressure relief, the ash can be discharged under pressure, the continuous operation of the production process is guaranteed, the energy consumption in the system pressure relief and pressurization process is avoided, the damage to the dust removing equipment is reduced, and the service life of the dust removing equipment is prolonged.

Description

Large flue ash discharging device and method for hydraulic sintering machine
Technical Field
The invention relates to the technical field of ash discharge of sintering machines, in particular to an ash discharge device and an ash discharge method for a large flue of a hydraulic sintering machine.
Background
The sintering machine is one of the blast furnace raw material supply devices, and the sintering machine can supply sintered ore to the blast furnace.
In the co-operation process of the sintering machine, a large amount of dust can be generated, and in order to reduce environmental pollution, the dust is usually collected and prevented from being discharged into the atmosphere to pollute the environment.
At present, a dust recovery mode is generally adopted, and a dust collector and a dust removal pipeline are generally adopted for collecting dust. Collecting and discharging the collected dust through a dust discharging valve. And in the dust removal and ash conveying process, because the ash conveying system is conveyed under pressure, the ash is required to be discharged through pressure relief in the ash discharging process, so that the smooth discharge of the dust can be ensured, the continuous operation of the production process is influenced by the pressure relief and the pressurization process, the energy consumption is increased in the pressure relief and the pressurization process, the damage of dust removal equipment can be caused, and the service life of the dust removal equipment is shortened.
Disclosure of Invention
The invention provides a large flue dust discharging device of a hydraulic sintering machine, which does not need pressure relief in the dust discharging process, can discharge dust under pressure, ensures the continuous operation of the production process, avoids the increase of energy consumption in the pressure relief and pressurization processes of a system, reduces the damage to dust removing equipment and prolongs the service life of the dust removing equipment.
The method comprises the following steps: a first valve housing and a second valve housing;
the first valve box is mounted to the upper end of the second valve box;
the upper end of the first valve box is provided with a first feeding hole, and the lower end of the first valve box is provided with a first discharging hole;
the upper end of the second valve box is provided with a second feeding hole, and the lower end of the second valve box is provided with a second discharging hole;
a first discharge port of the first valve box is matched with a second feed port of the second valve box;
a first rotary feeding control component is arranged at a first feeding port of the first valve box; the first rotary feeding control assembly is connected with a first rotary oil cylinder; the first rotary oil cylinder drives the first rotary feeding control assembly to rotate, and controls the opening and closing of the first feeding hole of the first valve box.
It is further noted that the first rotary feeding control assembly is provided with a rotary oil cylinder, a crank arm and a conical material plate;
the rotary oil cylinder is fixedly arranged on the side part of the first valve box and is close to the first feed port;
the rotary oil cylinder is connected with the conical material plate through a crank arm;
the conical material plate is arranged at a first feed inlet of the first valve box;
the rotary oil cylinder drives the conical material plate to rotate through the crank arm, so that the conical material plate controls the opening and closing of the first feeding hole.
It is further noted that the crank arm is connected with a pressing oil cylinder; the pressing oil cylinder drives the conical material plate to move up and down through the crank arm.
It is further noted that a first fluororubber sealing ring is arranged at the first feed inlet of the first valve box;
the first rotary feed control assembly snaps onto the first fluoroelastomer sealing ring.
It is further noted that a second rotary feeding control component is arranged at a second feeding port of the second valve box; the second rotary feeding control assembly is connected with a second rotary oil cylinder; the second rotary oil cylinder drives the second rotary feeding control component to rotate, and the opening and closing of the second feeding hole of the second valve box are controlled.
A second fluorine rubber sealing ring is arranged at a second feed inlet of the second valve box;
the second rotary feed control assembly is snap fitted onto the second fluoroelastomer sealing ring.
It is further noted that the first valve housing is connected to the second valve housing by a flange.
It is further noted that the conical material plate is provided with a material plate plane, and wear-resistant cast iron is fixed on the material plate plane through screws; the wear-resistant cast iron is CR26 high-chromium cast iron;
the crank arm is flexibly connected with the conical material plate through a joint bearing.
The invention also provides a method for discharging ash from the large flue of the hydraulic sintering machine, which comprises the following steps:
when the first valve box and the second valve box work, the first rotary oil cylinder drives the first rotary feeding control assembly to rotate, and a first feeding hole of the first valve box is opened;
a second discharge port of the second valve box is closed;
closing a first feeding hole of the first valve box after the dedusting ash stored in the first valve box reaches a preset release amount;
opening a second discharge port of the second valve box, and enabling the dust in the first valve box to fall into the second valve box;
and after the dedusting ash in the first valve box is reduced to the preset storage amount, closing a second discharge port of the second valve box, opening a first feed port of the first valve box, receiving the dedusting ash again, and circulating the steps.
It should be further noted that when the first valve box receives ash, the pressing oil cylinder drives the crank arm to move downwards, so that the conical material plate is separated from the first fluororubber sealing ring of the first feed port;
the rotating oil cylinder drives the conical material plate to rotate by 90 degrees through the crank arm, and a first feeding hole of the first valve box is opened;
when the first feeding hole is closed, the rotary oil cylinder drives the conical material plate to rotate by 90 degrees through the crank arm, the conical material plate is in contact with the annular alloy tool bit in the first valve box, the dedusting ash material flow is cut off, and the conical material plate is aligned to the first feeding hole;
the pressing oil cylinder drives the crank arm to move upwards to drive the conical material plate to contact with the first fluororubber sealing ring, and the first feeding hole of the first valve box is closed.
According to the technical scheme, the invention has the following advantages:
in the large flue dust discharging device of the hydraulic sintering machine, the first valve box and the second valve box are equivalent to two independent valve boxes, and the first valve box can realize the connection of dust in the pipeline. And the first valve box and the second valve box are mutually isolated, and the pressure in the pipeline cannot influence the second valve box. When ash is discharged, the first rotary feeding control component acts to close the first feeding hole. And the second rotary feeding control assembly acts to open the second feeding hole, and the dust removing ash in the first valve box is placed into the second valve box. Because first valve case has realized cutting off with the dust removal pipeline, so need not carry out the pressure release to the dust removal pipeline, the inside pressure of dust removal pipeline can not influence the ash discharge process between first valve case and the second valve case in addition. The ash is discharged under pressure, the continuous operation of the production process is guaranteed, the energy consumption in the pressure relief and pressurization processes of the system is avoided, the damage to the dust removing equipment is reduced, and the service life of the dust removing equipment is prolonged.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a large flue ash-discharging device of a hydraulic sintering machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides an ash discharging device for a large flue of a hydraulic sintering machine and an ash discharging method, wherein when an element or a layer is referred to as being "on" and "connected" or "coupled" to another element or layer, the ash discharging device may be directly on, connected or coupled to the other element or layer, and an intermediate element or layer may be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The hydraulic sintering machine large flue dust discharging device provided by the invention may use the terms of spatial relativity, such as "below …", "below", "lower", "above", etc., which are convenient for description, to describe the relationship of one element or feature to another element or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The terms used in the large flue ash discharging device of the hydraulic sintering machine provided by the invention are only used for describing specific embodiments, and are not intended to limit the description in this document. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The ash discharging device comprises: a first valve box 11 and a second valve box 10; the first valve housing 11 is mounted to the upper end of the second valve housing 10; the first valve housing 11 is flange-connected to the second valve housing 10. The first valve housing 11 and the second valve housing 10 may be connected by other means, such as welding.
The upper end of the first valve box 11 is provided with a first feeding hole, and the lower end is provided with a first discharging hole; the upper end of the second valve box 10 is provided with a second feeding hole, and the lower end is provided with a second discharging hole; the first drain hole of first valve box 11 matches the setting with the second feed inlet of second valve box 10, that is the first drain hole of first valve box 11 communicates with the second feed inlet of second valve box 10 each other. A first rotary feeding control component is arranged at a first feeding port of the first valve box 11; the first rotary feeding control component is connected with a first rotary oil cylinder 3; the first rotary oil cylinder 3 drives the first rotary feeding control component to rotate, and controls the opening and closing of the first feeding hole of the first valve box.
A second rotary feeding control component is arranged at a second feeding port of the second valve box 10; the second rotary feeding control assembly is connected with a second rotary oil cylinder; the second rotary oil cylinder drives the second rotary feeding control component to rotate, and the second rotary feeding control component controls the opening and closing of the second feeding hole of the second valve box 10.
The first valve box 11 and the second valve box 10 are equivalent to two independent valve boxes, and the first valve box 11 can receive dust in the pipeline. The first valve box 11 and the second valve box 10 are isolated from each other, and the pressure inside the pipeline does not affect the second valve box 10. When ash is discharged, the first rotary feeding control component acts to close the first feeding hole. The second rotary feeding control component acts to open the second feeding hole, and the dust in the first valve box 11 is put into the second valve box 10. Because first valve case 11 has realized cutting off with the dust removal pipeline, so need not carry out the pressure release to the dust removal pipeline, the inside pressure of dust removal pipeline can not influence the ash discharge process between first valve case 11 and second valve case 10 in addition. The ash is discharged under pressure, the continuous operation of the production process is guaranteed, the energy consumption in the pressure relief and pressurization processes of the system is avoided, the damage to the dust removing equipment is reduced, and the service life of the dust removing equipment is prolonged.
Furthermore, the first rotary feeding control component is provided with a rotary oil cylinder 3, a crank arm 2 and a conical material plate 4; the rotary oil cylinder 3 is fixedly arranged on the side part of the first valve box 11 and is close to the first feeding hole; the rotary oil cylinder 3 is connected with the conical material plate 4 through the crank arm 2; the conical material plate 4 is arranged at a first feed inlet of the first valve box 11; the rotary oil cylinder 3 drives the conical material plate 4 to rotate through the crank arm 2, so that the conical material plate 4 controls the opening and closing of the first feeding hole. The crank arm 2 is connected with a pressing oil cylinder 1; the pressing oil cylinder 1 drives the conical material plate 4 to move up and down through the crank arm 2.
Wherein, the conical material plate 4 is provided with a material plate plane 5, and the material plate plane 5 is fixed with wear-resistant cast iron 6 through screws; the wear-resistant cast iron 6 is CR26 high-chromium cast iron; the wear-resisting cast iron 6 improves the wear resistance of the conical material plate 4, prolongs the service life of the ash discharging device, and the crank arm 2 is flexibly connected with the conical material plate 4 through the knuckle bearing 8.
In order to ensure the sealing performance of the first valve box 11 and the second valve box 10, a first fluororubber sealing ring is arranged at a first feeding port of the first valve box 11; the first rotary feed control assembly snaps onto the first fluoroelastomer sealing ring.
A second fluorine rubber sealing ring is arranged at a second feeding port of the second valve box 10; the second rotary feed control assembly is snap fitted onto the second fluoroelastomer sealing ring. The fluororubber sealing ring is made of A830 fluororubber, has strong stability and better wear resistance in hydraulic media, chemicals and organic compounds, and has good pressure resistance and friction coefficient only 20 percent of that of the traditional rubber material.
The fluororubber sealing ring has played and has contacted closely with the toper flitch, improves the sealing performance of valve box, has avoided traditional unloading valve material card in the fluororubber sealed department, what cause reveals.
The second rotary feeding control assembly has the same structural form as the first rotary feeding control assembly.
In order to facilitate the access to the inside of the first valve box 11, an access door 7 is arranged on the side wall of the first valve box 11. Of course, the second valve box is also provided with an access door.
Based on the large flue ash discharging device of the hydraulic sintering machine, the invention also provides a large flue ash discharging method of the hydraulic sintering machine, which comprises the following steps:
when the first valve box and the second valve box work, the first rotary oil cylinder drives the first rotary feeding control assembly to rotate, and a first feeding hole of the first valve box is opened;
a second discharge port of the second valve box is closed;
closing a first feeding hole of the first valve box after the dedusting ash stored in the first valve box reaches a preset release amount;
opening a second discharge port of the second valve box, and enabling the dust in the first valve box to fall into the second valve box;
and after the dedusting ash in the first valve box is reduced to the preset storage amount, closing a second discharge port of the second valve box, opening a first feed port of the first valve box, receiving the dedusting ash again, and circulating the steps.
Specifically, the method further comprises:
when the first valve box receives ash, the pressing oil cylinder drives the crank arm to move downwards, so that the conical material plate is separated from the first fluororubber sealing ring of the first feed port;
the rotating oil cylinder drives the conical material plate to rotate by 90 degrees through the crank arm, and a first feeding hole of the first valve box is opened;
when the first feeding hole is closed, the rotary oil cylinder drives the conical material plate to rotate by 90 degrees through the crank arm, the conical material plate is in contact with the annular alloy tool bit in the first valve box, the dedusting ash material flow is cut off, and the conical material plate is aligned to the first feeding hole;
the pressing oil cylinder drives the crank arm to move upwards to drive the conical material plate to contact with the first fluororubber sealing ring, and the first feeding hole of the first valve box is closed.
The method for discharging the ash in the large flue of the hydraulic sintering machine does not need to discharge the pressure of the dust removal pipeline, and the pressure in the dust removal pipeline does not influence the ash discharging process between the first valve box 11 and the second valve box 10. The ash is discharged under pressure, the continuous operation of the production process is guaranteed, the energy consumption in the pressure relief and pressurization processes of the system is avoided, the damage to the dust removing equipment is reduced, and the service life of the dust removing equipment is prolonged.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a hydraulic pressure sintering machine big flue ash discharging device which characterized in that includes: a first valve housing (11) and a second valve housing (10);
the first valve box (11) is mounted to the upper end of the second valve box (10);
the upper end of the first valve box (11) is provided with a first feeding hole, and the lower end of the first valve box is provided with a first discharging hole;
the upper end of the second valve box (10) is provided with a second feeding hole, and the lower end of the second valve box is provided with a second discharging hole;
a first discharge port of the first valve box (11) is matched with a second feed port of the second valve box (10);
a first rotary feeding control component is arranged at a first feeding port of the first valve box (11); the first rotary feeding control component is connected with a first rotary oil cylinder (3); the first rotary oil cylinder (3) drives the first rotary feeding control assembly to rotate, and controls the opening and closing of the first feeding hole of the first valve box.
2. The large flue dust discharging device of a hydraulic sintering machine according to claim 1,
the first rotary feeding control assembly is provided with a rotary oil cylinder (3), a crank arm (2) and a conical material plate (4);
the rotary oil cylinder (3) is fixedly arranged on the side part of the first valve box (11) and is close to the first feed port;
the rotary oil cylinder (3) is connected with the conical material plate (4) through a crank arm (2);
the conical material plate (4) is arranged at a first feed inlet of the first valve box (11);
the rotary oil cylinder (3) drives the conical material plate (4) to rotate through the crank arm (2), so that the conical material plate (4) controls the opening and closing of the first feeding hole.
3. The large flue dust discharging device of a hydraulic sintering machine according to claim 2,
the crank arm (2) is connected with a pressing oil cylinder (1); the pressing oil cylinder (1) drives the conical material plate (4) to move up and down through the crank arm (2).
4. The large flue dust discharging device of a hydraulic sintering machine according to claim 1 or 2,
a first fluororubber sealing ring is arranged at a first feed inlet of the first valve box (11);
the first rotary feed control assembly snaps onto the first fluoroelastomer sealing ring.
5. The large flue dust discharging device of a hydraulic sintering machine according to claim 1 or 2,
a second rotary feeding control component is arranged at a second feeding port of the second valve box (10); the second rotary feeding control assembly is connected with a second rotary oil cylinder; the second rotary oil cylinder drives the second rotary feeding control component to rotate, and the opening and closing of a second feeding hole of the second valve box (10) are controlled.
6. The large flue dust discharging device of a hydraulic sintering machine according to claim 5,
a second fluorine rubber sealing ring is arranged at a second feeding port of the second valve box (10);
the second rotary feed control assembly is snap fitted onto the second fluoroelastomer sealing ring.
7. The large flue dust discharging device of the hydraulic sintering machine according to claim 1 or 2, characterized in that the first valve box (11) and the second valve box (10) are connected by flanges.
8. The large flue dust discharging device of a hydraulic sintering machine according to claim 2,
the conical material plate (4) is provided with a material plate plane (5), and the wear-resistant cast iron (6) is fixed on the material plate plane (5) through screws; the wear-resistant cast iron (6) is CR26 high-chromium cast iron;
the crank arm (2) is flexibly connected with the conical material plate (4) through a joint bearing (8).
9. A method for discharging ash from a large flue of a hydraulic sintering machine is characterized by adopting the large flue ash discharging device of the hydraulic sintering machine as claimed in any one of claims 1 to 8;
the method comprises the following steps:
when the first valve box and the second valve box work, the first rotary oil cylinder drives the first rotary feeding control assembly to rotate, and a first feeding hole of the first valve box is opened;
a second discharge port of the second valve box is closed;
closing a first feeding hole of the first valve box after the dedusting ash stored in the first valve box reaches a preset release amount;
opening a second discharge port of the second valve box, and enabling the dust in the first valve box to fall into the second valve box;
and after the dedusting ash in the first valve box is reduced to the preset storage amount, closing a second discharge port of the second valve box, opening a first feed port of the first valve box, receiving the dedusting ash again, and circulating the steps.
10. The method for discharging ash from the large flue of the hydraulic sintering machine according to claim 9, wherein the method further comprises the following steps:
when the first valve box receives ash, the pressing oil cylinder drives the crank arm to move downwards, so that the conical material plate is separated from the first fluororubber sealing ring of the first feed port;
the rotating oil cylinder drives the conical material plate to rotate by 90 degrees through the crank arm, and a first feeding hole of the first valve box is opened;
when the first feeding hole is closed, the rotary oil cylinder drives the conical material plate to rotate by 90 degrees through the crank arm, the conical material plate is in contact with the annular alloy tool bit in the first valve box, the dedusting ash material flow is cut off, and the conical material plate is aligned to the first feeding hole;
the pressing oil cylinder drives the crank arm to move upwards to drive the conical material plate to contact with the first fluororubber sealing ring, and the first feeding hole of the first valve box is closed.
CN202111409007.5A 2021-11-24 2021-11-24 Large flue ash discharging device and method for hydraulic sintering machine Pending CN114061324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111409007.5A CN114061324A (en) 2021-11-24 2021-11-24 Large flue ash discharging device and method for hydraulic sintering machine

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Application Number Priority Date Filing Date Title
CN202111409007.5A CN114061324A (en) 2021-11-24 2021-11-24 Large flue ash discharging device and method for hydraulic sintering machine

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CN114061324A true CN114061324A (en) 2022-02-18

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202884130U (en) * 2012-10-31 2013-04-17 江苏省旭日液压设备有限公司 Electric-hydraulic conical double-layer cinder valve
CN204142001U (en) * 2014-10-16 2015-02-04 武汉钢铁(集团)公司 The control of dust device for discharging of sintering machine large flue
CN206823370U (en) * 2017-04-21 2018-01-02 山东墨龙石油机械股份有限公司 A kind of high-temp. vortex cleaner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202884130U (en) * 2012-10-31 2013-04-17 江苏省旭日液压设备有限公司 Electric-hydraulic conical double-layer cinder valve
CN204142001U (en) * 2014-10-16 2015-02-04 武汉钢铁(集团)公司 The control of dust device for discharging of sintering machine large flue
CN206823370U (en) * 2017-04-21 2018-01-02 山东墨龙石油机械股份有限公司 A kind of high-temp. vortex cleaner

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Application publication date: 20220218

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