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CN-117696213-B - Pretreatment device and production method for production of aluminum cement of blast furnace

CN117696213BCN 117696213 BCN117696213 BCN 117696213BCN-117696213-B

Abstract

The invention discloses a pretreatment device and a production method for producing aluminum cement of a blast furnace, which belong to the technical field of refractory material preparation, wherein the pretreatment device comprises a crushing cavity, and a feed hopper is arranged at the top of the crushing cavity; the device comprises a double-roller crushing mechanism, a drying cavity, a crushing cavity, a drying cavity, a heat source cavity, a heating piece, a heat source cavity and a heat conducting plate, wherein the double-roller crushing mechanism is used for coarsely crushing materials in a crushing cavity, a blanking opening is arranged between the crushing cavity and the drying cavity, a roller is arranged in the drying cavity, the blanking opening is arranged at the top opening of the roller, the roller is used for screening after secondary crushing, a crushing outlet is arranged at one side below the drying cavity, a discharging inner pipe used for discharging coarse materials is arranged at the bottom of the roller, the driving mechanism used for driving the roller to rotate is arranged in the drying cavity, the heating piece is arranged in the heat source cavity, the crushing cavity, the drying cavity and the heat source cavity are sequentially arranged from top to bottom, and the heat conducting plate is arranged between the drying cavity and the heat source cavity. The invention solves the problem that the material is required to be transferred between the crushing device and the drying device when the aluminum cement of the blast furnace is prepared.

Inventors

  • ZHANG WANGDONG
  • CHU TINGTING
  • KANG GUANGHUI
  • YANG CHANG
  • WU YANHUI
  • ZHANG ZHENGDONG

Assignees

  • 湖南齐丰新材料有限公司

Dates

Publication Date
20260505
Application Date
20240115

Claims (6)

  1. 1. The pretreatment device for producing the aluminum cement of the blast furnace is characterized by comprising the following components: the crushing device comprises a crushing cavity (1), wherein a feed hopper (20) is arranged at the top of the crushing cavity (1); the double-roller crushing mechanism is used for coarsely crushing the materials in the crushing cavity (1); The drying device comprises a drying cavity (2), wherein a feed opening (18) is formed between the crushing cavity (1) and the drying cavity (2), a roller (6) is arranged in the drying cavity (2), the feed opening (18) is positioned at the opening of the top of the roller (6), the roller (6) is used for screening after secondary crushing, a crushed aggregates outlet is formed in one side below the drying cavity (2), a discharging inner pipe (25) used for discharging coarse aggregates is arranged at the bottom of the roller (6), and a driving mechanism used for driving the roller (6) to rotate is arranged in the drying cavity (2); The heat source cavity (3), a heating element is arranged in the heat source cavity (3), the crushing cavity (1), the drying cavity (2) and the heat source cavity (3) are sequentially arranged from top to bottom, and a heat conducting plate (15) is arranged between the drying cavity (2) and the heat source cavity (3); The roller (6) comprises a secondary crushing chamber (601) and a screening chamber (602) positioned below the secondary crushing chamber (601); A guide plate (23) is arranged in the secondary crushing chamber (601), the guide plate (23) is obliquely arranged, the upper end of the guide plate is fixed with the side part of the secondary crushing chamber (601), the lower end of the guide plate extends to the other side of the secondary crushing chamber (601), and crushing teeth (24) are arranged on the upper side and the lower side of the guide plate (23) and the circumferential inner wall of the secondary crushing chamber (601); a plurality of throwing holes (22) for throwing out crushed aggregates are formed in the circumferential direction of the screening chamber (602); The driving mechanism comprises a first gear (71), a second gear (72), a driving motor (73), a rotating shaft (74) and a mounting seat (75); The first gear (71) is sleeved on the circumferential outer wall of the roller (6), the first gear (71) is fixedly arranged with the roller (6), and the first gear (71) is meshed with the second gear (72); the driving motor (73) is arranged at the top of the drying cavity (2) through the mounting seat (75), one end of the rotating shaft (74) is fixed with an output shaft of the driving motor (73), and the rotating shaft (74) is fixed with the center of the second gear (72); A containing cavity (4) is arranged below the heat source cavity (3), a discharging control mechanism (9) is arranged in the containing cavity (4), and the discharging control mechanism (9) is used for controlling the discharging of materials in the roller (6); The discharging control mechanism (9) comprises a disc (91), a sliding block (93), a connecting rod (94), a spring (96), a fixed block (97) and a positioning plate (99); One end of the rotating shaft (74) is fixed with an output shaft of the driving motor (73), the other end of the rotating shaft penetrates through the second gear (72) and then extends downwards to be inserted into the inner bottom of the accommodating cavity (4), the disc (91) is located in the accommodating cavity (4) and fixed on the rotating shaft (74), the rotating shaft (74) penetrates through the center of the disc (91), a circle of sliding rail (92) is arranged on the outer side of the disc (91) along the circumferential direction of the rotating shaft (74), the sliding block (93) is located in the sliding rail (92), and a limiting part (95) for limiting the sliding block (93) to throw out of the sliding rail (92) is arranged on the outer side of the sliding rail (92); The discharging outer tube (13) is sleeved outside the discharging inner tube (25), the discharging outer tube (13) penetrates through the heat source cavity (3) and the accommodating cavity (4) and then extends downwards, one end of the connecting rod (94) is fixed with the sliding block (93), the other end of the connecting rod is fixed with the baffle (12), and the baffle (12) is used for extending into the discharging outer tube (13) to plug the discharging inner tube (25); the fixed block (97) is located outside the discharging outer tube (13) and fixed at the bottom of the baffle plate (12), the locating plate (99) is fixed at the inner bottom of the accommodating cavity (4), the locating plate (99) is located between the fixed block (97) and the disc (91), and the spring (96) is fixed between the fixed block (97) and the locating plate (99).
  2. 2. The pretreatment device for producing aluminum cement for blast furnace according to claim 1, wherein at least two guide plates (23) are arranged up and down, and the two guide plates (23) are respectively positioned at two opposite sides of the secondary crushing chamber (601).
  3. 3. The pretreatment device for producing the aluminum cement for the blast furnace, which is disclosed in claim 1, is characterized in that a stirring paddle (8) is fixed on the outer wall of the roller (6), and the stirring paddle (8) is a oblique blade type blade.
  4. 4. The pretreatment device for producing the aluminum cement of the blast furnace according to claim 1, wherein a limiting plate (26) is fixed on the outer side of the discharging outer pipe (13), a chute is arranged on the limiting plate (26), and the baffle plate (12) moves back and forth in the chute along the axial direction of the connecting rod (94); The baffle (12) is used for blocking the lower part of the discharging inner pipe (25), and an inclined plane (27) is arranged on the top surface of the baffle (12).
  5. 5. The pretreatment device for producing aluminum cement in a blast furnace according to claim 1, wherein the double-roller crushing mechanism comprises a first crushing roller (51), a second crushing roller (52), a first rotating shaft (53), a second rotating shaft (54), a crushing motor (55), a mounting plate (56), a driving gear (57) and a driven gear; The crushing motor (55) is arranged on the outer side of the crushing cavity (1) through the mounting plate (56), one end of the first rotating shaft (53) is connected with an output shaft of the crushing motor (55), the other end of the first rotating shaft penetrates through the driving gear (57) and then stretches into the crushing cavity (1), the second rotating shaft (54) is arranged in parallel with the first rotating shaft (53), the driving gear (57) is fixed on the first rotating shaft (53) and is meshed with the driven gear, the driven gear is fixed on the second rotating shaft (54), and the driving gear (57) and the driven gear are both positioned on the outer side of the crushing cavity (1); The crushing device comprises a crushing cavity (1), a first crushing roller (51) and a second crushing roller (52), wherein the first crushing roller (51) and the second crushing roller (52) are both positioned in the crushing cavity (1), the first crushing roller (51) is fixed on a first rotating shaft (53), the second crushing roller (52) is fixed on a second rotating shaft (54), and the first crushing roller (51) and the second crushing roller (52) are used for being matched and crushing materials in the crushing cavity (1).
  6. 6. The production method of the aluminum cement for the blast furnace is characterized by comprising the following steps of: S1, gradually adding a material to be pretreated into a feed hopper (20) of the pretreatment device for producing the aluminum cement of the blast furnace according to any one of claims 1-5, and starting a crushing motor (55) and a driving motor (73) to perform material crushing and drying operations; S2, cooling crushed aggregates from the drying cavity (2) according to the parts by weight, namely 10-15 parts of white mud, 25-35 parts of crushed aggregates recovered by a sliding plate, 15-25 parts of bauxite, 4-10 parts of coke powder, 8-15 parts of pyrophyllite, 2-8 parts of ferrosilicon nitride, 10-15 parts of silicon carbide and 2-6 parts of blue crystal stone; S3, adding the mixed materials after the batching into a wheel type stirrer for uniform mixing; S4, packaging after molding to obtain the aluminum cement for the blast furnace.

Description

Pretreatment device and production method for production of aluminum cement of blast furnace Technical Field The invention relates to the technical field of refractory material preparation, in particular to a pretreatment device and a production method for producing aluminum cement of a blast furnace. Background The daub is a refractory material and can be used for plugging a blast furnace tap hole and the like. The alumina clay is clay containing bauxite in raw materials, and the clay and the magnesia clay are widely used, and the alumina clay is mainly used for large and medium-sized blast furnaces. The existing aluminum cement production process needs to be crushed and dried through the crushing device and the drying device respectively, and materials are transferred between the crushing device and the drying device, so that the production cost is increased, and the production efficiency is reduced. In view of the above, the invention provides a novel pretreatment device and a production method for producing aluminum cement for a blast furnace. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide a pretreatment device and a production method for producing aluminum cement of a blast furnace, which solve the problem that the aluminum cement of the blast furnace needs to be transferred between a crushing device and a drying device, save time and labor and reduce equipment investment. In order to achieve the above purpose, the present invention provides the following technical solutions: pretreatment device for producing aluminum cement of blast furnace, comprising: The top of the crushing cavity is provided with a feed hopper; The double-roller crushing mechanism is used for coarsely crushing the materials in the crushing cavity; The drying device comprises a drying cavity, wherein a blanking opening is arranged between the crushing cavity and the drying cavity, a roller is arranged in the drying cavity, the blanking opening is positioned at the opening of the top of the roller, the roller is used for screening after secondary crushing, a crushed aggregates outlet is arranged on one side below the drying cavity, a discharging inner pipe used for discharging coarse aggregates is arranged at the bottom of the roller, and a driving mechanism used for driving the roller to rotate is arranged in the drying cavity; the heat source cavity is internally provided with a heating element, the crushing cavity, the drying cavity and the heat source cavity are sequentially arranged from top to bottom, and a heat conducting plate is arranged between the drying cavity and the heat source cavity. It is further preferred that the roller comprises a secondary crushing chamber and a screening chamber positioned below the secondary crushing chamber; The secondary crushing chamber is internally provided with a guide plate, the guide plate is obliquely arranged, the upper end of the guide plate is fixed with the side part of the secondary crushing chamber, the lower end of the guide plate extends to the other side of the secondary crushing chamber, and crushing teeth are arranged on the upper side and the lower side of the guide plate and on the circumferential inner wall of the secondary crushing chamber; The screening room circumference direction is provided with a plurality of throwing away the hole that is used for the crushed aggregates to throw away. It is further preferable that at least two guide plates are arranged up and down, and the two guide plates are respectively positioned at two opposite sides of the secondary crushing chamber. It is further preferable that the driving mechanism comprises a first gear, a second gear, a driving motor, a rotating shaft and a mounting seat; The first gear is sleeved on the circumferential outer wall of the roller, the first gear is fixedly arranged with the roller, and the first gear is meshed with the second gear; The driving motor is installed at the top of the drying cavity through the installation seat, one end of the rotating shaft is fixed with an output shaft of the driving motor, and the rotating shaft is fixed with the center of the second gear. It is further preferable that a stirring paddle is fixed on the outer wall of the roller, and the stirring paddle is an oblique blade type blade. It is further preferable that a containing cavity is arranged below the heat source cavity, a discharging control mechanism is arranged in the containing cavity, and the discharging control mechanism is used for controlling the discharging of materials in the roller. It is further preferable that the discharging control mechanism comprises a disc, a sliding block, a connecting rod, a spring, a fixed block and a positioning plate; One end of the rotating shaft is fixed with the output shaft of the driving motor, the other end of the rotating shaft penetrates through the second gear, then extends downwards and is inserted into the inner botto