阅读说明：本技术 一种可利用余热的斜轧球磨钢球回火装置 (Skew rolling ball-milling steel ball tempering device capable of utilizing waste heat ) 是由 王宝雨 张慧博 刘晋平 郑振华 于 2020-12-18 设计创作，主要内容包括：本发明涉及金属塑性成形工艺与装备技术领域,提供了一种可利用余热的斜轧球磨钢球回火装置,包括机架、保温壳体、储球单元；储球单元安装在保温壳体内,包括储球筒、入风筒、出风筒、入球轨道、出球机构、锥形散热筒、弧形底板；锥形散热筒安装在储球筒底部中央,热量通过入风筒进入锥形散热筒,均匀释放在储球筒中；钢球通过入球轨道进入储球筒,均匀分布在锥形散热筒周围,完成回火过程后经出球机构排出装置。本发明结构简单易制造,钢球进出便捷,通过锥形散热筒均匀释放热量、增大钢球整体受热面积,回火效果好,同时充分利用钢球空冷产生的热量,节能环保,应用前景广阔。(The invention relates to the technical field of metal plastic forming process and equipment, and provides a skew rolling ball milling steel ball tempering device capable of utilizing waste heat, which comprises a rack, a heat preservation shell and a ball storage unit, wherein the rack is provided with a heat preservation shell; the ball storage unit is arranged in the heat-insulating shell and comprises a ball storage cylinder, an air inlet cylinder, an air outlet cylinder, a ball inlet track, a ball outlet mechanism, a conical heat dissipation cylinder and an arc-shaped bottom plate; the conical heat dissipation cylinder is arranged in the center of the bottom of the ball storage cylinder, and heat enters the conical heat dissipation cylinder through the air inlet cylinder and is uniformly released in the ball storage cylinder; the steel balls enter the ball storage barrel through the ball inlet rail, are uniformly distributed around the conical heat dissipation barrel, and are discharged out of the device through the ball outlet mechanism after the tempering process is finished. The steel ball tempering furnace is simple in structure and easy to manufacture, the steel ball is convenient to pass in and out, heat is uniformly released through the conical heat dissipation cylinder, the whole heating area of the steel ball is increased, the tempering effect is good, meanwhile, heat generated by air cooling of the steel ball is fully utilized, energy is saved, the environment is protected, and the application prospect is wide.)

1. A skew rolling ball milling steel ball tempering device capable of utilizing waste heat is characterized by comprising a heat preservation shell and a ball storage unit;

the ball storage unit is arranged in the heat-insulating shell and comprises a ball storage barrel, a conical heat dissipation barrel, an arc-shaped guide plate, a ball inlet track, a ball outlet mechanism, an air inlet barrel and an air outlet barrel;

the conical heat dissipation cylinder is arranged at the center of the bottom of the ball storage cylinder and is in a shape that the middle part is high, and the periphery is low; the arc-shaped guide plates are arranged around the bottom of the conical heat dissipation cylinder and used for guiding the steel balls into the ball outlet mechanism;

the ball inlet rail and the air outlet cylinder are arranged at the top of the ball storage unit, and the ball outlet mechanism and the air inlet cylinder are arranged at the bottom of the ball storage unit;

and heat generated by air cooling of the oblique-rolling ball-milling steel ball enters the conical heat dissipation cylinder through the air inlet cylinder, is tempered and then is dissipated through the air outlet.

2. The device for tempering obliquely-rolled ball-milled steel balls by utilizing waste heat as claimed in claim 1, wherein the conical heat dissipation cylinder is provided with a plurality of rows of heat dissipation holes for uniformly releasing heat entering the ball storage cylinder, and the diameter of each heat dissipation hole is smaller than the diameter of the steel ball.

3. The device for tempering skew-rolled ball-milled steel balls by using waste heat according to claim 2, wherein high-temperature alloy wires are arranged in a hearth of the heat-insulating housing to provide an auxiliary temperature-controlled heat source for the device.

4. The device for tempering skew-rolled ball-milled steel balls by using waste heat according to claim 1, wherein the geometric centers of the air inlet cylinder, the air outlet cylinder and the conical heat dissipation cylinder are coaxially arranged.

5. The device for tempering skew-rolled ball-milled steel balls using waste heat according to claim 1, wherein the conical shape of the conical heat-dissipating cylinder is a polygonal cone, a conical cone or an elliptical cone.

6. The device for tempering obliquely-rolled ball-milled steel balls by utilizing waste heat as claimed in claim 1, wherein the ball-entering track is installed at an angle with a horizontal plane and is obliquely installed at the top of the ball storage unit through a support frame, and a first baffle plate for preventing the steel balls from sliding out of the track is provided at an inlet of the ball-entering track.

7. The device for tempering the obliquely-rolled ball-milled steel balls by utilizing the waste heat as claimed in claim 1, wherein the ball discharging mechanism comprises a ball discharging barrel and a rotating baffle plate, the rotating baffle plate is arranged at an outlet of the ball discharging barrel, the rotating baffle plate is arranged on an end surface of the outlet of the ball discharging barrel through a pin shaft, and a bolt is arranged between the rotating baffle plate and the ball discharging barrel;

when the steel ball is tempered, the bolt is inserted into the jack, and the ball outlet is closed; and when the tempering is finished, the bolt is pulled out, the rotary baffle is rotated, the ball outlet is opened, and the steel balls are discharged.

8. The device for tempering skew-rolled ball-milled steel balls using waste heat according to claim 3, further comprising a frame, wherein the heat-insulating housing and the ball storage unit are supported by the frame.

9. The device for tempering obliquely-rolled ball-milled steel balls by utilizing the waste heat as claimed in claim 1, wherein the heat-insulating housing and the ball storage cylinder are integrated into one, and the heat-insulating housing simultaneously serves as the ball storage cylinder.

10. The device for tempering the ball-milled steel balls by skew rolling mill using the residual heat according to any one of claims 1 to 9, wherein the heat-insulating case comprises a housing and a furnace lining, the housing is of a cylindrical structure supported by steel plates and section steel, the furnace lining is made of refractory heat-insulating bricks, and heat-insulating materials are filled between the furnace lining and the housing.

Technical Field

The invention relates to the technical field of metal plastic forming process and equipment, in particular to a temper device for an oblique rolling ball-milling steel ball, which can utilize waste heat.

Background

The ball-milling steel ball is the most commonly used grinding body in the ball mill, is also one of the most consumption of various easily-worn parts in the milling industry, and is widely applied to the industries of building materials, metallurgy, mineral separation, chemical industry and the like. The method has important significance for obtaining the steel ball with low cost and high performance.

Compared with the traditional casting and forging process, the skew rolling process for producing the ball-milling steel balls has the advantages of high production efficiency, high material utilization rate, low production cost, small environmental pollution and the like. The high-performance skew-rolled ball-milled steel balls need to undergo a series of heat treatment processes, wherein the tempering process can improve the toughness and the wear resistance of the steel balls. The existing production line mostly adopts a well type tempering furnace to carry out tempering treatment, and has the defects that the steel ball in-and-out process is time-consuming and labor-consuming, the whole accumulation of the steel ball leads to uneven heating, and the like.

Disclosure of Invention

The invention aims to solve the defects of the prior art, and provides the temper device for the skew-rolling ball-milling steel ball, which can utilize waste heat, the steel ball can conveniently come in and go out, the online continuous production is realized, the integral heating area of the steel ball is increased through the conical heat dissipation cylinder, and the tempering effect is improved; the heat released by the steel ball air cooling process is used as a tempering heat source, so that green and energy-saving production is realized.

The invention adopts the following technical scheme:

a skew rolling ball milling steel ball tempering device capable of utilizing waste heat comprises a heat preservation shell and a ball storage unit;

the ball storage unit is arranged in the heat-insulating shell and comprises a ball storage barrel, a conical heat dissipation barrel, an arc-shaped guide plate, a ball inlet track, a ball outlet mechanism, an air inlet barrel and an air outlet barrel;

the conical heat dissipation cylinder is arranged at the center of the bottom of the ball storage cylinder and is in a shape that the middle part is high, and the periphery is low; the arc-shaped guide plates are arranged around the bottom of the conical heat dissipation cylinder and used for guiding the steel balls into the ball outlet mechanism;

the ball inlet rail and the air outlet cylinder are arranged at the top of the ball storage unit, and the ball outlet mechanism and the air inlet cylinder are arranged at the bottom of the ball storage unit;

and heat generated by air cooling of the oblique-rolling ball-milling steel ball enters the conical heat dissipation cylinder through the air inlet cylinder, is tempered and then is dissipated through the air outlet.

Furthermore, a plurality of rows of heat dissipation holes for uniformly releasing heat entering the ball storage cylinder are formed in the conical heat dissipation cylinder, the integral heating area of the steel ball is increased, and the aperture of each heat dissipation hole is smaller than the diameter of the steel ball.

Further, the heat dissipation holes are arranged longitudinally or transversely.

Furthermore, a high-temperature alloy wire is arranged in a hearth of the heat-insulating shell to provide an auxiliary temperature control heat source for the device.

Furthermore, the geometric centers of the air inlet cylinder, the air outlet cylinder and the conical heat dissipation cylinder are coaxially arranged.

Further, the cone of the cone-shaped heat dissipation cylinder is a polygonal cone, a cone or an elliptical cone.

Furthermore, the ball inlet rail is at an angle with the horizontal plane and is obliquely arranged at the top of the ball storage unit through a support frame, and a first baffle for preventing the steel ball from sliding out of the rail is arranged at the inlet of the ball inlet rail.

Furthermore, the ball outlet mechanism comprises a ball outlet barrel and a rotary baffle, the rotary baffle is arranged at the outlet of the ball outlet barrel, the rotary baffle is arranged on the end surface of the outlet of the ball outlet barrel through a pin shaft, and a bolt is arranged between the rotary baffle and the ball outlet barrel;

when the steel ball is tempered, the bolt is inserted into the jack, and the ball outlet is closed; and when the tempering is finished, the bolt is pulled out, the rotary baffle is rotated, the ball outlet is opened, and the steel balls are discharged.

Furthermore, the device also comprises a frame, and the heat preservation shell and the ball storage unit are both supported by the frame.

Furthermore, the heat-insulating shell and the ball storage cylinder are combined into a whole, and the heat-insulating shell is used as the ball storage cylinder at the same time.

Furthermore, the heat-insulating shell comprises a shell and a furnace lining, the shell is of a cylindrical structure supported by steel plates and section steel, the furnace lining is made of refractory heat-insulating bricks, and heat-insulating materials are filled between the furnace lining and the shell.

The invention has the beneficial effects that: the steel balls discharged from the previous process enter the ball storage cylinder through the ball inlet rail at the top and are uniformly distributed around the conical heat dissipation cylinder; heat generated by air cooling of the steel balls continuously enters the ball storage barrel through the bottom air inlet barrel and continuously provides heat for tempering of the steel balls through the top air outlet barrel discharging device, so that green and energy-saving production is realized; when the tempering is finished, the bolt at the bottom ball outlet is pulled out, the rotary baffle is rotated, and the steel balls are automatically discharged out of the device by virtue of gravity, so that the labor is saved, and the online continuous production is realized; the steel ball is uniformly heated and has good tempering effect.

Drawings

Fig. 1 is a schematic view of the overall structure of a skew rolling ball milling steel ball tempering apparatus capable of utilizing waste heat according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a ball storage unit in the embodiment.

Fig. 3 is a schematic structural diagram of a conical heat dissipation cylinder in an embodiment.

Fig. 4 is a schematic structural diagram of the ball discharging mechanism in the embodiment.

Fig. 5 is a schematic structural view of a ball-entering track in an embodiment.

Fig. 6 is a schematic structural view of an arc guide plate in the embodiment.

In the figure: 1. an air outlet cylinder; 2. a ball-entering track; 3. a heat-insulating shell; 4. an arc-shaped guide plate; 5. a ball discharging mechanism; 6. a frame; 7. entering an air duct; 8. a conical heat dissipation cylinder; 9. heat dissipation holes; 10. a ball storage cylinder; 11. a pin shaft; 12. a bolt; 13. rotating the baffle; 14. a ball outlet cylinder; 15. a steel ball baffle; 16. a support frame.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that technical features or combinations of technical features described in the following embodiments should not be considered as being isolated, and they may be combined with each other to achieve better technical effects.

As shown in fig. 1, the tempering device for the skew-rolled ball-milled steel balls, which can utilize the waste heat, is used for finishing the tempering process of the skew-rolled ball-milled steel balls with high quality and high efficiency, and comprises a heat-insulating shell 3, a frame 6 and a ball storage unit which is arranged in the heat-insulating shell 3 and is placed on the frame 6. The ball inlet rail 2 and the air outlet cylinder 1 are arranged at the top of the ball storage unit, and the ball outlet mechanism 5 and the air inlet cylinder 7 are arranged at the bottom of the ball storage unit.

Preferably, the heat-insulating shell 3 is cylindrical, the outer shell of the heat-insulating shell is made of section steel and steel plates, the furnace lining is made of refractory bricks, and proper heat-insulating materials are filled between the furnace lining and the outer shell according to process requirements.

As a preferred embodiment, high-resistance alloy wires are arranged in the hearth for assisting in controlling the tempering temperature.

As shown in fig. 2, 3 and 6, the ball storage unit comprises a ball storage cylinder 10, a conical heat dissipation cylinder 8, an arc-shaped guide plate 4, a ball inlet track 2, a ball outlet mechanism 5, an air inlet cylinder 7 and an air outlet cylinder 1;

the conical heat dissipation cylinder 8 is arranged in the center of the bottom of the ball storage cylinder 10 and is in a shape that the middle part is high, and the periphery is low; in a specific embodiment, the conical heat-dissipating cylinder 8 is mounted at the bottom of the ball storage cylinder 10 through a flange; the conical heat dissipation cylinder 8 is used for uniformly releasing heat entering the device from the air inlet cylinder 7 and increasing the whole heating area of the steel ball.

Preferably, the conical heat dissipation cylinder 8 is provided with heat dissipation holes 9; the aperture size of the heat dissipation holes 9 is smaller than the diameter of the steel ball. The heat dissipation holes 9 can take various forms, for example, the heat dissipation holes 9 are designed to be long round hole shapes and arrayed along the circumferential direction, and the width of the long round holes is smaller than the diameter of the steel ball to prevent the steel ball from falling out.

In a specific embodiment, the diameter of the bottom surface of the conical heat-dissipation cylinder 8 is 1/2 of the diameter of the bottom surface of the ball storage cylinder 10, and the height of the conical heat-dissipation cylinder is 1/2 of the height of the ball storage cylinder 10, so that the amount of steel balls contained in the device is reduced due to the fact that the diameter and the height of the bottom surface of the conical heat-dissipation cylinder 8 are too large, the overall heated area of the steel balls is small due to too small size, and the; the top of the conical heat dissipation cylinder 8 is designed to be hemispherical.

The arc-shaped guide plate 4 is arranged around the bottom of the conical heat dissipation cylinder 8 and used for guiding the steel balls into the ball outlet mechanism 5; the ball inlet rail 2 and the air outlet cylinder 1 are arranged at the top of the ball storage unit, and the ball outlet mechanism 5 and the air inlet cylinder 7 are arranged at the bottom of the ball storage unit; and heat generated by air cooling of the oblique-rolling ball-milling steel ball enters the conical heat-dissipating cylinder 8 through the air inlet cylinder 7, is tempered and then is dissipated through the air outlet.

Preferably, the geometric centers of the conical heat dissipation cylinder 8, the air inlet cylinder 7 and the air outlet cylinder 1 are coaxially arranged.

As shown in fig. 4, the ball outlet mechanism 5 includes a pin 11, a latch 12 and a rotary baffle 13, the pin 11 is used for connecting the rotary baffle 13 and a ball outlet barrel 14, and the latch 12 is used for controlling the rotary baffle 13 and thus controlling the opening and closing of the ball outlet.

As shown in fig. 5, the ball inlet rail 2 is mounted at the top of the ball storage barrel 10 through a support frame 16, and is inclined at an angle with the horizontal plane, so that a steel ball can smoothly slide into the device, and a steel ball baffle 15 is mounted on the side surface of the ball inlet rail 2 to prevent the steel ball from sliding out and falling.

The working principle of the embodiment of the invention is as follows:

the oblique milling ball-milling steel ball enters the ball storage cylinder 10 through the ball inlet rail 2 and is distributed around the conical heat dissipation cylinder 8, heat generated by the steel ball air cooling process enters the conical heat dissipation cylinder 8 through the air inlet cylinder 7 at the bottom of the device and is uniformly released in the ball storage cylinder 10 through the conical heat dissipation cylinder 8, after the tempering process is completed, the bolt 12 of the ball discharging mechanism 5 is pulled out, the rotating baffle 13 is rotated to open a ball outlet, the steel ball enters the ball discharging mechanism 5 under the guidance of the arc-shaped guide plate 4 by means of gravity, the discharging device is discharged, and the tempering process is completed.

The steel ball tempering furnace has the advantages of simple structure, easiness in manufacturing, convenience in steel ball inlet and outlet, large integral heating area, good tempering effect, full utilization of heat generated by air cooling of the steel balls, energy conservation, environmental friendliness and wide application prospect.

While several embodiments of the present invention have been presented herein, it will be appreciated by those skilled in the art that changes may be made to the embodiments herein without departing from the spirit of the invention. The above examples are merely illustrative and should not be taken as limiting the scope of the invention.