CN109453883B - Three-jaw material distribution device for vertical mill blanking of blast furnace granulated slag - Google Patents
Three-jaw material distribution device for vertical mill blanking of blast furnace granulated slag Download PDFInfo
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- CN109453883B CN109453883B CN201811257559.7A CN201811257559A CN109453883B CN 109453883 B CN109453883 B CN 109453883B CN 201811257559 A CN201811257559 A CN 201811257559A CN 109453883 B CN109453883 B CN 109453883B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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Abstract
The invention discloses a three-jaw distributing device for blast furnace granulated slag vertical mill discharging, which comprises a discharging opening flange, a discharging pipe, a distributing device supporting frame, a three-jaw distributing rod and a reinforcing rib plate, wherein the three-jaw distributing rod is arranged on the discharging opening flange; the blanking pipe is matched with a reinforcing rib plate and fixed on a blanking port flange through welding, the distributing device supporting frame is arranged on one side of the blanking pipe and plays a role in fixing and supporting the three-jaw distributing rod, and the three-jaw distributing rod and the blanking pipe are welded together; the three-jaw distributing rod scatters the material from inside to outside from high to low, and a larger scattering area is obtained due to the fact that centrifugal force generated by rotation of the rotating platform and anticlockwise rotation are matched with the three-jaw distributing rod, and a material layer with uniform thickness is formed.
Description
Technical Field
The invention relates to the field of material distribution equipment, in particular to a three-jaw material distribution device for vertical mill blanking of blast furnace granulated slag.
Background
A large amount of water slag is generated in the blast furnace ironmaking process, and the water slag has potential hydraulic gelation property and can be used as an excellent cement raw material under the action of an excitant such as cement clinker, lime gypsum and the like. Enterprises can generate good economic benefits by processing and grinding the grain slag. When the granulated slag enters the vertical mill, the granulated slag enters the vertical mill through the central blanking pipe for grinding, and when the granulated slag enters the grinding area, a certain material layer is needed to ensure the grinding effect, and the material layer is completed through the distributing device.
The fluctuation of the grinding material layer generated in the practical use process of the current distributing device in a scraper mode is greatly 30-50 mm, and the grinding material layer is more unstable due to the increase of the abrasion loss after the scraper is used for a long time. This reduces the grinding efficiency of the vertical mill. In order to solve the problem of large material layer fluctuation in a grinding area, it is necessary to redesign a set of more effective, more scientific and more stable distributor according to the actual situation on site through technical innovation.
Disclosure of Invention
The invention aims to provide a three-jaw material distribution device for vertical mill blanking of blast furnace granulated slag, aiming at overcoming the defects in the prior art.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a three-jaw distributing device for blast furnace granulated slag vertical mill discharging comprises a discharging port flange, a distributing device supporting frame, a three-jaw distributing rod and a reinforcing rib plate;
the blanking port flange is connected with the blanking pipe by bolts;
the material distributor supporting frame is composed of three fixing devices which are vertically downward, the upper end of the material distributor supporting frame is connected with the lower end of the feed opening flange in a welding mode, and welding points of the three material distributor supporting frames mutually form an included angle of 60 degrees;
the three-jaw distributing rods are of an arc structure in the anticlockwise stress direction, the three-jaw distributing rods are respectively connected with the lower ends of the three blanking pipes, and the ends, located on the inner side, of the three-jaw distributing rods are fixed together in a welding mode; the three-jaw distributing rod is divided into an inclined section and a horizontal section, the inclined section of the three-jaw distributing rod is inclined downwards from the center point from inside to outside and from high to low, the horizontal section of the three-jaw distributing rod is horizontally parallel to the base, and a plurality of discharge ports are arranged on the three-jaw distributing rod;
and the reinforcing rib plates are a plurality of small right-angle trapezoidal plates and are fixedly welded between the feed opening flange and the distributing device supporting frame.
Furthermore, the diameter of the feed opening flange is 760mm, the feed opening flange and the feed pipe are fixedly connected through bolts, and M24 x 60 type bolts are arranged between the feed opening flange and the feed pipe.
Furthermore, the reinforcing rib plates are circularly arranged by taking the welding position of the distributing device support frame and the feed opening flange as the center.
Further, the lower connecting rod is located the distributing device support frame lower extreme, lower connecting rod and three-jaw cloth pole between little contained angle be 76, lower connecting rod and three-jaw cloth pole between adopt the circular arc type and central point welded fastening together.
Furthermore, a 5mm high-hardness alloy wear-resistant layer is welded on the outer side of the three-jaw distributing rod in a stacking mode.
Furthermore, the tail end 150mm of the three-jaw distributing rod in the discharging direction horizontally extends and is parallel to the rotating table.
Furthermore, the rotating platform is composed of two parts, namely a conical part and a circular ring part, the conical part is a blanking area, the diameter of a bottom circle of the blanking area is 1620mm, and the circular ring part is a grinding area; the revolving stage rotate at the uniform velocity anticlockwise under the drive of motor, three-jaw distributing rod evenly carry the grain slag to the blanking region on the revolving stage.
Furthermore, the grinding equipment is used for grinding the granulated slag in the grinding area through hydraulic pressure to generate extrusion force, so that slag micro powder with certain fineness is generated.
Compared with the prior art, the invention has the beneficial effects that:
the application of the invention ensures that the distribution of the granulated slag in the mill is more uniform and is reduced to 36-43 mm from the original thickness of the material layer of 30-50 mm. The grinding efficiency of the blast furnace granulated slag vertical mill is improved, and the table-type yield is improved from the original 78 tons/hour to the current 81 tons/hour.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic structural view of a feed opening flange and a supporting frame of a distributing device according to the present invention;
FIG. 3 is a schematic structural view of the lower connecting rod and the three-jaw distributing rod of the present invention;
fig. 4 is a top view of the device of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the three-jaw distributing device for blast furnace granulated slag vertical mill blanking is a front view, and comprises a blanking port flange 1, a blanking pipe 2, a distributing device supporting frame 3, a three-jaw distributing rod 4 and a reinforcing rib plate 5; the feeding port flange 1 is connected with the feeding pipe 2 by bolts; the material distributor supporting frame 3 is composed of three fixing devices which are vertically downward, the upper end of the material distributor supporting frame 3 is connected with the lower end of the feed opening flange 1 in a welding mode, and welding points of the three material distributor supporting frames 3 mutually form an included angle of 60 degrees; the three-jaw distributing rods 4 are of an arch structure in the anticlockwise stress direction, three of the three-jaw distributing rods 4 are respectively connected with the lower ends of the three blanking pipes 2, and one ends, located on the inner side, of the three-jaw distributing rods 4 are fixed together in a welding mode; the three-jaw distributing rod 4 is divided into an inclined section and a horizontal section, the inclined section of the three-jaw distributing rod 4 is inclined downwards from the center point from inside to outside and from high to low, the horizontal section of the three-jaw distributing rod 4 is horizontally parallel to the base, and a plurality of discharge holes are formed in the three-jaw distributing rod 4; and the reinforcing rib plates 5 are a plurality of small right-angle trapezoidal plates and are fixedly welded between the feed opening flange 1 and the distributor support frame 3.
In the above-mentioned figures, the three-jaw distributing rod 4 of the invention is parallel to the surface of the rotating platform, the material falls into the three-jaw distributing rod 4 from the blanking pipe 2, and slides out from the inclined section of the three-jaw distributing rod 4 due to the action of gravity, and slowly flows out at the horizontal section thereof, referring to fig. 3, the inclined angle of the inclined section is 76 degrees, through which the smooth discharging can be ensured to the maximum extent, and the accumulation of the material in the horizontal section of the three-jaw distributing rod 4 is avoided.
Referring to fig. 2, a plurality of reinforcing rib plates 5 are circularly arranged by taking the welding position of the distributor support frame 3 and the feed opening flange 1 as the center.
Referring to fig. 1 and 4, the diameter of the feed opening flange 1 is 760 mm; a bolt of M24 plus 60 type is adopted between the feed opening flange 1 and the feed pipe 2; the lower connecting rod 6 is positioned at the lower end of the distributing device supporting frame 3, a small included angle between the lower connecting rod 6 and the three-jaw distributing rod 4 is 76 degrees, and the lower connecting rod 6 and the three-jaw distributing rod 6 are fixed together by adopting an arc shape and welding a center point; a 5mm high-hardness alloy wear-resistant layer is welded on the outer side of the three-jaw distributing rod 4 in a stacking mode, so that the three-jaw distributing rod 4 is prevented from being damaged due to friction when the three-jaw distributing rod 4 and the granulated slag on the rotating platform 7 rotate due to granulated slag deposition; the 150mm position of the tail end of the material distributing rod in the discharging direction is horizontally stretched and is parallel to the rotating platform.
Referring to fig. 1, the rotating platform 7 is composed of two parts, namely a conical part and a circular part, the conical part is a blanking area 701, the diameter of the bottom circle of the blanking area 701 is 1620mm, and the circular part is a grinding area 702; the rotary table 7 is driven by a motor to rotate anticlockwise, the inner side direction of the radian of the three-jaw distributing rod 4 is abutted against the anticlockwise direction of the rotary table 7, so that the spreading area generated when the three-jaw distributing rod 4 and the rotary table 7 rotate is larger, the rotary table 7 is designed to be high in the middle and low in two sides and under the action of centrifugal force generated during rotation, the three-jaw distributing rod 4 uniformly conveys water slag to a blanking area 701 on the rotary table 7, and the water slag is uniformly conveyed into the grinding equipment 8 from high to low; the grinding device 8 is used for grinding the granulated slag in the grinding area 702 by hydraulic pressure to generate extrusion force, so that slag micro powder with certain fineness is generated.
The motor of the middle rotating platform 7 can be a direct current motor, a motor rear-connected speed reducer drive or a hydraulic drive, and is not particularly specified as long as the drive can realize a rotating function; the motor is provided with a frequency converter, and the speed of the motor is controlled through the action of the frequency converter;
the above-mentioned medium grinding equipment 8 is composed of a transmission device and a grinding mechanism, is an existing equipment, and is arranged at the edge of the rotating table 7, and the grain slag is brought into the grinding equipment 8 by the centrifugal force generated during rotation.
The principle of the invention is as follows: when the material is distributed, the water granulated slag raw material enters from the discharging pipe 2 welded on the discharging port flange 1 and enters the three-jaw material distribution pipe 4 through the discharging pipe 2, meanwhile, the motor drives the rotating table 7 to rotate anticlockwise at a constant speed, the water granulated slag in the three-jaw material distribution pipe 4 is scattered out from the discharging port, the distribution uniformity is improved through the centrifugal force and the design of the rotating table 7, and meanwhile, the water granulated slag does circular motion on the edge of the rotating table 7, so that the water granulated slag is brought into the grinding equipment 8, and the production efficiency is further improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a three-jaw distributing device that is used for unloading of blast furnace grain slag vertical mill which characterized in that: comprises a feed opening flange (1), a feed pipe (2), a distributing device support frame (3), a three-jaw distributing rod (4) and a reinforcing rib plate (5);
the blanking port flange (1), the blanking port flange (1) and the blanking pipe (2) are connected by adopting bolts; the blanking port flange (1) is provided with an opening which is communicated with the opening of the blanking pipe (2);
a blanking pipe (2), wherein the blanking pipe (2) is vertically downward, and the blanking pipe
(2) The upper end is connected with a feed opening flange (1), and the lower end is connected with a three-jaw distributing rod (4);
the distributing device comprises a distributing device support frame (3), wherein the distributing device support frame (3) is positioned at the upper end of a discharging pipe (2), the distributing device support frame (3) is provided with three fixing devices which are vertically downward, the upper end of the distributing device support frame (3) is connected with the lower end of a discharging port flange (1) in a welding mode, and connecting lines between the welding points of the three distributing device support frames (3) and the central point of equipment form an included angle of 60 degrees;
the three-jaw distributing rods (4) are of an arch structure in the anticlockwise stress direction, three of the three-jaw distributing rods (4) are respectively connected with the lower end of the blanking pipe (2), and the ends, located on the inner side, of the three-jaw distributing rods (4) are fixed together in a welding mode; the three-jaw distributing rod (4) is divided into an inclined section and a horizontal section, the inclined section of the three-jaw distributing rod (4) is inclined downwards from the center point from inside to outside and from high to low, the horizontal section of the three-jaw distributing rod (4) is horizontally parallel to the base, and a plurality of discharge ports are formed in the three-jaw distributing rod (4);
the reinforcing rib plates (5) are a plurality of small right-angle trapezoidal plates and are fixedly welded between the feed opening flange (1) and the distributor support frame (3);
the diameter of the feed opening flange (1) is 760mm, the feed opening flange (1) is fixedly connected with the upper end of the feed pipe (2) through bolts, and M24 & lt60 & gt type bolts are adopted between the feed opening flange (1) and the feed pipe (2);
the inclination angle between the blanking pipe (2) and the three-jaw distributing rod (4) is 76 degrees;
the reinforcing rib plates (5) are circularly arranged by taking the welding position of the distributor support frame (3) and the feed opening flange (1) as the center;
the lower connecting rod (6) is positioned at the lower end of the distributing device supporting frame (3), and the lower connecting rod (6) and the three-jaw distributing rod (4) are fixed together by adopting an arc shape and welding a central point;
a 5mm high-hardness alloy wear-resistant layer is welded on the outer side of the three-jaw distributing rod (4);
the tail end of the three-jaw distributing rod (4) in the discharging direction is 150mm, extends horizontally and is parallel to the rotating table (7);
the rotary table (7) is composed of two parts, namely a conical part and a circular ring part, the conical part is a blanking area (701), the diameter of a bottom circle of the blanking area is 1620mm, and the circular ring part is a grinding area (702); the rotating table (7) is driven by a motor to rotate anticlockwise at a constant speed, and the three-jaw distributing rod (4) uniformly conveys the water granulated slag to a blanking area (701) on the rotating table (7);
the grinding equipment (8) is used for grinding the water granulated slag in the grinding area (702) through hydraulic pressure to generate extrusion force, so that slag micro powder with certain fineness is generated;
the granulating slag raw material gets into by welding unloading pipe (2) on feed opening flange (1), get into inside three-jaw cloth pipe (4) through unloading pipe (2), the motor drives revolving stage (7) counter-clockwise turning at the uniform velocity simultaneously, granulating slag spills out from the discharge gate in three-jaw cloth pipe (4), through centrifugal force and revolving stage (7) design, the homogeneity of cloth has been improved, the granulating slag is circular motion on the edge of revolving stage (7) simultaneously, bring the granulating slag into grinding equipment (8) from this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257559.7A CN109453883B (en) | 2018-10-26 | 2018-10-26 | Three-jaw material distribution device for vertical mill blanking of blast furnace granulated slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257559.7A CN109453883B (en) | 2018-10-26 | 2018-10-26 | Three-jaw material distribution device for vertical mill blanking of blast furnace granulated slag |
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| Publication Number | Publication Date |
|---|---|
| CN109453883A CN109453883A (en) | 2019-03-12 |
| CN109453883B true CN109453883B (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811257559.7A Active CN109453883B (en) | 2018-10-26 | 2018-10-26 | Three-jaw material distribution device for vertical mill blanking of blast furnace granulated slag |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2305370A2 (en) * | 1975-03-26 | 1976-10-22 | Lafarge Sa | Bulk material storage system - has central hopper delivering onto conveyors rotatable about vertical axis for deposition in layers |
| NL7905533A (en) * | 1979-07-16 | 1981-01-20 | Holterbosch J L M | SPREAD DISH. |
| US5971690A (en) * | 1999-02-26 | 1999-10-26 | Agri Dynamics, Inc. | Parts distribution apparatus |
| CN101905811A (en) * | 2010-07-27 | 2010-12-08 | 卢振江 | Novel grain distributer |
| CN102285538A (en) * | 2011-08-22 | 2011-12-21 | 卢振江 | Novel self-rotating grain distributor |
| CN205815907U (en) * | 2016-07-26 | 2016-12-21 | 新乡市长城机械有限公司 | Vertical Mill prevents discharging point skew and the concentration doffer of material isolation |
| CN206262623U (en) * | 2016-12-07 | 2017-06-20 | 四川亿欣新材料有限公司 | A kind of vertical mill emitted with cone |
| CN206853812U (en) * | 2017-06-30 | 2018-01-09 | 四川筠连西南水泥有限公司 | A kind of high-efficiency vertical mill |
| CN207238131U (en) * | 2017-08-30 | 2018-04-17 | 山西太钢不锈钢股份有限公司 | Vertical Mill center blanking distribution device |
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2018
- 2018-10-26 CN CN201811257559.7A patent/CN109453883B/en active Active
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