Tempering system for high-carbon type ultralow-abrasion hot-rolled ball-milled steel balls
Technical Field
The utility model relates to a high carbon type ultralow wearing and tearing hot rolling ball-milling steel ball tempering system.
Background
The ball-milling steel ball is widely used for grinding various ores and other materials, and is widely used in the industries of mineral separation, cement, thermal power generation and the like. The usage amount of iron ore, copper ore, cement ore, power generation and other ores in China is more than 30 hundred million tons, and more than 300 million tons of steel balls are needed. The manufacturing method of the steel ball mainly comprises the production processes of forging, casting, rolling and the like. The rolling method for producing the steel balls has the advantages of high production efficiency, 20-180 steel balls produced per minute, high material utilization rate up to 98%, high dimensional precision, good labor conditions, low production cost, good quality and the like, and is an advanced ball-milling steel ball production process. The rolled ball-milled steel ball generally needs to be quenched, cooled and tempered to improve the hardness and wear resistance of the steel ball.
The quenching mechanism, the cooling device and the tempering system are independently arranged in the prior art, the layout is not compact enough, the occupied space is large, and the manufacturing and assembling cost is high; in addition, the rotary drum in the quenching mechanism is completely immersed in the cooling liquid in the quenching tank, the rotary resistance of the rotary shaft in water is large, and the quenching effect of the steel ball is general; in addition, the cooling device only has one cooling process, which easily causes the cooling not to be in place and influences the finished product quality of the steel balls. Therefore, at present, a tempering system for the high-carbon type ultralow-abrasion hot-rolled ball-milled steel ball, which has better quenching and cooling effects, compact layout and space saving, is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects, and provides a high-carbon type ultralow-abrasion hot-rolled ball-milled steel ball tempering system which has better quenching and cooling effects, compact layout and space saving.
The purpose of the utility model is realized like this:
a high-carbon type ultralow-abrasion hot-rolled ball-milled steel ball tempering system comprises a quenching mechanism, a primary cooling mechanism, a secondary cooling mechanism and a tempering furnace which are sequentially connected; the quenching mechanism comprises a quenching bath, a rotary drum driven to rotate by a rotating shaft is arranged in the quenching bath, two ends of the rotary drum are open, and the part of the rotary drum below the rotating shaft is soaked in the cooling liquid of the quenching bath; the inner wall of the rotary drum is provided with a plurality of spiral sheets, the spiral sheets form a spiral groove, the spiral sheets are fixedly connected with the rotary shaft, and the outlet end of the rotary drum is provided with a lifting mechanism;
the primary cooling mechanism comprises a sealed cooling bin, the front end and the rear end of the cooling bin are respectively provided with an air inlet and an air outlet, the air inlet is provided with an air inlet fan, and the air outlet is provided with an exhaust fan;
secondary cooling mechanism includes sealed cooling bin two, the vertical a plurality of baffles that are provided with in two tops in cooling bin, and a plurality of air intakes have been seted up to the lower extreme in cooling bin two, air intake department is provided with air intake fan two, and a plurality of air outlets have been seted up to the upper end in cooling bin two, air outlet department is provided with exhaust fan two, and exhaust fan two is located between the adjacent baffle.
The utility model discloses ultra-low wearing and tearing hot rolling ball-milling steel ball tempering system of high carbon type, primary cooling mechanism and quenching mechanism set up relatively, and secondary cooling mechanism sets up with primary cooling mechanism relatively.
The utility model discloses ultra-low wearing and tearing hot rolling ball-milling steel ball tempering system of high carbon type, connect through U-shaped steering slope one between hoist mechanism and the primary cooling mechanism, U-shaped steering slope one is close to the one end height of hoist mechanism top discharge end, and the one end that is close to the primary cooling mechanism is low, and the steel ball in the hoist mechanism is carried to the primary cooling mechanism through U-shaped steering slope one and is cooled off; the primary cooling mechanism is connected with the secondary cooling mechanism through a U-shaped turning slope II, one end, close to the primary cooling mechanism, of the U-shaped turning slope II is high, one end, close to the secondary cooling mechanism, of the U-shaped turning slope II is low, and the secondary cooling mechanism is connected with the tempering furnace through a conveying belt.
The utility model discloses the ultralow wearing and tearing hot rolling ball-milling steel ball tempering system of high carbon type, the pivot is passed through motor drive and is rotatory.
The utility model discloses ultralow wearing and tearing hot rolling ball-milling steel ball tempering system of high carbon type, the pan feeding groove has been inserted to the entry end of rotary drum.
The utility model discloses a high-carbon type ultralow wearing and tearing hot rolling ball-milling steel ball tempering system, be fixed with the layer board on the bulkhead of cooling bin, the back of the layer board of cooling bin is provided with the condenser tube that is used for cooling the layer board, let in the coolant liquid in the condenser tube; the left side and the right side of the supporting plate are both provided with chains parallel to the length direction of the supporting plate, chain wheels which move in a matched manner with the chains are arranged at two ends of the chains, the two chain wheels positioned at the front end of the supporting plate are connected through a transmission rod, and the two chain wheels positioned at the rear end of the supporting plate are connected through the transmission rod; a plurality of scrapers vertical to the length direction of the supporting plate are arranged between the chains on the left side and the right side of the supporting plate, the scrapers are positioned above the supporting plate, and the distance between every two adjacent scrapers is greater than the diameter of the steel ball; the tail end of the supporting plate is connected with a U-shaped steering slope II.
The utility model discloses a high-carbon type ultralow-abrasion hot-rolled ball-milled steel ball tempering system, a second supporting plate is fixed on the bin wall of the second cooling bin, and a plurality of ventilation holes are formed in the second supporting plate; the left side and the right side of the second supporting plate are both provided with a second chain wheel parallel to the length direction of the second supporting plate, two ends of the second chain wheel are provided with a second chain wheel which moves in a matched manner with the second chain wheel, the two second chain wheels positioned at the front end of the second supporting plate are connected through a second transmission rod, and the two second chain wheels positioned at the rear end of the second supporting plate are connected through a second transmission rod; a plurality of second scrapers perpendicular to the length direction of the second supporting plate are arranged between the second chains on the left side and the right side of the second supporting plate, the second scrapers are positioned above the second supporting plate, and the distance between every two adjacent second scrapers is larger than the diameter of the steel ball; the tail end of the second supporting plate is connected with a conveying belt.
The utility model discloses the ultralow wearing and tearing hot rolling ball-milling steel ball tempering system of high carbon type has following advantage:
the utility model discloses a high carbon type ultralow wearing and tearing hot rolling ball-milling steel ball tempering system includes consecutive quenching mechanism, primary cooling mechanism, secondary cooling mechanism and tempering furnace, and primary cooling mechanism sets up with the quenching mechanism relatively, and secondary cooling mechanism sets up with primary cooling mechanism relatively, and above-mentioned tempering system overall arrangement is compact, saves the occupation of land space, and each mechanism is closely connected, and work efficiency is high; the quenching tank in the quenching mechanism of the high-carbon ultralow-abrasion hot-rolled ball-milled steel ball tempering system is provided with the rotary drum, the rotary drum is driven to rotate by the central rotating shaft of the rotary drum, the inner wall of the rotary drum is provided with a plurality of spiral pieces, the spiral pieces form a spiral groove, the transmission efficiency of the spiral groove is high, and the steel ball is always positioned at the bottom of the spiral groove under the action of gravity and is immersed by cooling liquid, so the quenching effect is good; the utility model discloses set up primary cooling mechanism and secondary cooling mechanism among the ultralow wearing and tearing hot rolling ball-milling steel ball tempering system of high carbon type, all set up sealed cooling bin in primary cooling mechanism and the secondary cooling mechanism, all set up air intake fan and exhaust fan and cooled off the steel ball in the cooling bin, make the cooling effect better, all set up layer board conveying mechanism and carried the steel ball in primary cooling mechanism and the secondary cooling mechanism, the layer board top is provided with the scraper blade that the chain drove, the scraper blade drives the steel ball and rolls on the layer board, the layer board back is provided with the condenser tube who leads to coolant water or coolant liquid, the water pipe cools off the layer board.
Drawings
Fig. 1 is a layout schematic diagram of the tempering system of the high-carbon type ultralow-abrasion hot-rolled ball-milled steel ball of the utility model.
Fig. 2 is a plan view of the quenching mechanism of fig. 1.
Fig. 3 is a side view of the quench mechanism of fig. 1.
Fig. 4 is a front view of the primary cooling mechanism of fig. 1.
Fig. 5 is a plan view of the primary cooling mechanism of fig. 1.
Fig. 6 is a front view of the secondary cooling mechanism of fig. 1.
Fig. 7 is a plan view of the secondary cooling mechanism of fig. 1.
In the figure: the quenching device comprises a quenching mechanism 1, a quenching bath 1.1, a rotary drum 1.2, a rotary shaft 1.3, a feeding groove 1.4, a spiral plate 1.5, a spiral groove 1.6, a primary cooling mechanism 2, a cooling bin 2.1, an air intake fan 2.2, an air exhaust fan 2.3, a supporting plate 2.4, a chain wheel 2.5, a chain 2.6, a scraping plate 2.7, a cooling water pipe 2.8, a transmission rod 2.9, a secondary cooling mechanism 3, a cooling bin II 3.1, an air intake fan II 3.2, an air exhaust fan II 3.3, a supporting plate II 3.4, a chain wheel II 3.5, a chain II 3.6, a scraping plate II 3.7, a transmission rod II 3.8, a partition plate 3.9, a tempering furnace 4, a U-shaped turning slope I5, a U-shaped turning slope II 6, a lifting mechanism 7 and a conveying.
Detailed Description
Referring to fig. 1 to 7, the utility model relates to a tempering system for high-carbon type ultra-low abrasion hot-rolled ball-milled steel balls, which comprises a quenching mechanism 1, a primary cooling mechanism 2, a secondary cooling mechanism 3 and a tempering furnace 4 which are connected in sequence; the primary cooling mechanism 2 is arranged opposite to the quenching mechanism 1, and the secondary cooling mechanism 3 is arranged opposite to the primary cooling mechanism 2.
The quenching mechanism 1 is used for quenching treatment of the steel balls, a lifting mechanism 7 for lifting the steel balls is arranged at the outlet end of the quenching mechanism 1, the lifting mechanism 7 is connected with the primary cooling mechanism 2 through a U-shaped steering slope I5, one end, close to the top discharge end of the lifting mechanism 7, of the U-shaped steering slope I5 is high, one end, close to the primary cooling mechanism 2, of the U-shaped steering slope I5 is low, and the steel balls in the lifting mechanism 7 are conveyed into the primary cooling mechanism 2 through the U-shaped steering slope I5 for cooling; the primary cooling mechanism 2 is connected with the secondary cooling mechanism 3 through a U-shaped turning slope II 6, one end of the U-shaped turning slope II 6, which is close to the primary cooling mechanism 2, is high, and one end of the U-shaped turning slope II 6, which is close to the secondary cooling mechanism 3, is low, and the steel ball enters the secondary cooling mechanism 3 from the primary cooling mechanism 2 through the U-shaped turning slope II 6 to be subjected to secondary cooling treatment; the secondary cooling mechanism 3 conveys the steel balls to the tempering furnace 4 through a conveying belt 8 for tempering treatment.
The quenching mechanism 1 comprises a quenching bath 1.1, a rotary drum 1.2 driven to rotate by a rotary shaft 1.3 is arranged in the quenching bath 1.1, the rotary shaft 1.3 is driven to rotate by a motor, two ends of the rotary drum 1.2 are opened, a feeding groove 1.4 is inserted into the inlet end of the rotary drum 1.2, a steel ball enters the interior of the rotary drum 1.2 through the feeding groove 1.4, and the part of the rotary drum 1.2 below the rotary shaft 1.3 is soaked in the cooling liquid of the quenching bath 1.1; the inner wall of the rotary drum 1.2 is provided with a plurality of spiral sheets 1.5, the spiral grooves 1.6 are formed by the spiral sheets 1.5, the spiral sheets 1.5 are fixedly connected with the rotary shaft 1.3, and the outlet end of the rotary drum 1.2 is provided with a lifting mechanism 7. The motor drives the rotating shaft 1.3 to rotate, the rotating shaft 1.3 drives the rotating drum 1.2 to rotate after rotating, the steel ball is always positioned at the bottom of the spiral groove 1.6 under the action of self gravity, the steel ball moves to the outlet end of the rotating drum 1.2 in the spiral groove 1.6 along with the rotation of the rotating drum 1.2, then the lifting mechanism 7 at the outlet end of the rotating drum 1.2 lifts the steel ball to the U-shaped turning slope I5, and the steel ball is conveyed to the primary cooling mechanism 2 through the U-shaped turning slope I5 to be cooled.
The primary cooling mechanism 2 comprises a sealed cooling bin 2.1, an air inlet and an air outlet are respectively formed in the front end and the rear end of the cooling bin 2.1, an air inlet fan 2.2 is arranged at the air inlet, and an air exhaust fan 2.3 is arranged at the air outlet; a supporting plate 2.4 is fixed on the wall of the cooling bin 2.1, a cooling water pipe 2.8 for cooling the supporting plate 2.4 is arranged on the back surface of the supporting plate 2.4 of the cooling bin 2.1, and cooling water or cooling liquid is introduced into the cooling water pipe 2.8; the left side and the right side of the supporting plate 2.4 are both provided with chains 2.6 parallel to the length direction of the supporting plate, two ends of each chain 2.6 are provided with chain wheels 2.5 which move in a matching way, the two chain wheels 2.5 positioned at the front end of the supporting plate 2.4 are connected through a transmission rod 2.9, and the two chain wheels 2.5 positioned at the rear end of the supporting plate 2.5 are connected through the transmission rod 2.9; a plurality of scrapers 2.7 vertical to the length direction of the supporting plate 2.4 are arranged between the chains 2.6 at the left side and the right side of the supporting plate 2.4, the scrapers 2.7 are positioned above the supporting plate 2.4, and the distance between two adjacent scrapers 2.7 is larger than the diameter of the steel ball; the tail end of the supporting plate 2.4 is connected with a U-shaped steering slope II 6. When the chain 2.6 is transmitted on the chain wheel 2.5, the chain 2.6 drives the scraper 2.7 to move, the steel ball rolls on the supporting plate 2.4 after being pushed by the scraper 2.7, heat is dissipated while rolling, and the steel ball is conveyed to the secondary cooling mechanism 3 through the U-shaped steering slope II 6 when rolling to the tail end of the supporting plate 2.4.
The secondary cooling mechanism 3 comprises a sealed cooling bin II 3.1, a plurality of partition plates 3.9 are vertically arranged at the top of the cooling bin II 3.1, a plurality of air inlets are formed in the lower end of the cooling bin II 3.1, an air inlet fan II 3.2 is arranged at the air inlet, a plurality of air outlets are formed in the upper end of the cooling bin II 3.1, an air exhaust fan II 3.3 is arranged at the air outlet, and the air exhaust fan II 3.3 is located between the adjacent partition plates 3.9; a second supporting plate 3.4 is fixed on the wall of the second cooling bin 3.1, and a plurality of ventilation holes are formed in the second supporting plate 3.4; the left side and the right side of the second supporting plate 3.4 are both provided with a second chain 3.6 parallel to the length direction of the second supporting plate, two ends of the second chain 3.6 are provided with a second chain wheel 3.5 which moves in a matched manner with the second chain wheel, the two second chain wheels 3.5 positioned at the front end of the second supporting plate 3.4 are connected through a second transmission rod 3.8, and the two second chain wheels 3.5 positioned at the rear end of the second supporting plate 3.5 are connected through a second transmission rod 3.8; a plurality of second scraping plates 3.7 vertical to the length direction of the second supporting plate 3.4 are arranged between the second chains 3.6 on the left side and the right side of the second supporting plate 3.4, the second scraping plates 3.7 are positioned above the second supporting plate 3.4, and the distance between every two adjacent second scraping plates 3.7 is larger than the diameter of the steel ball; the tail end of the second supporting plate 3.4 is connected with a conveyer belt 8, and the steel balls after secondary cooling are conveyed into a tempering furnace 4 through the conveyer belt 8 for tempering treatment.