Steel ball tempering system

Abstract

The utility model belongs to the field of steel ball tempering process equipment, and particularly relates to a steel ball tempering system which comprises a furnace body, a furnace door arranged on one side of the furnace body, a trolley arranged at the bottom of the furnace body, a resistance heater arranged on the inner side wall of the furnace body, a circulating fan arranged on the top of the furnace body and a main air duct connected with the circulating fan. The air duct pipes are connected with the main air duct, and first flange plates are arranged at the lower ends of the air duct pipes; according to the bearing basket, an outer cylinder is defined by a plurality of steel columns, a downwards-inclined conical surface is arranged on the inner circumference of a base, a ball outlet is formed in the middle of the conical surface, the bearing basket enters or exits from the box-type tempering furnace through a trolley, a second flange plate is arranged at the top of an inner cylinder, and the first flange plate is detachably connected with the second flange plate; the box-type tempering furnace is provided with the main air duct and the air duct pipe, the bearing basket is provided with the inner barrel with the ventilation holes, and the air duct pipe is detachably connected with the inner barrel, so that hot air is circulated into the bearing basket, and the ventilation effect in the bearing basket is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the steel ball tempering process equipment field especially is related to a kind of steel ball tempering system. BACKGROUND

[0002] Ball mill steel ball is used to grind various ores and other materials as the grinding medium of ball mill, and steel ball manufacturing needs to go through heating, rolling forming, air cooling, quenching and tempering treatment to improve hardness and wear resistance.

[0003] In the tempering process of steel ball, the steel ball is loaded into a bearing basket, and then the bearing basket is sent to a box-type tempering furnace. The box-type tempering furnace realizes the tempering treatment of the steel ball by high-temperature heating and hot air. Since the steel balls are stacked in the bearing basket, the ventilation in the bearing basket is not smooth, and the steel balls are prone to uneven heating, which affects the tempering effect of the steel balls.

[0004] Therefore, it is necessary to provide a steel ball tempering system that can improve the uniformity of heating in the steel ball tempering process. SUMMARY

[0005] The utility model aims at providing a kind of steel ball tempering system, improve the ventilation effect inside bearing basket, solve the problem of uneven heating when accumulated steel ball is tempered.

[0006] The utility model aims at realizing by the following technical scheme:

[0007] The steel ball tempering system of the utility model comprises:

[0008] Box-type tempering furnace, the box-type tempering furnace includes: furnace body, furnace door is set to the one side of the furnace body, furnace door lifting mechanism is connected with the furnace door, trolley is set to the bottom of the furnace body, resistance heater is set to the inner side wall of the furnace body, circulating fan is set to the top of the furnace body, main air duct is connected with the circulating fan, multiple air duct pipes are connected with the main air duct, and the lower end of the air duct pipe is provided with first flange plate;

[0009] Bearing basket, the bearing basket includes: outer cylinder, inner cylinder, base and top ring, the outer cylinder is surrounded by multiple steel columns, the top ring is provided with ball inlet, the bottom of the steel column is welded with the base, the top of the steel column is welded with the top ring, the inner periphery of the base is provided with downward inclined conical surface, and the middle part of the conical surface is provided with ball outlet;The top of the inner cylinder is provided with second flange plate, the bottom of the inner cylinder is provided with conical ball stop, multiple ventilation holes are uniformly distributed on the outer wall of the inner cylinder, and the outer periphery of the conical ball stop cooperates with the inner periphery of the conical surface;When the inner cylinder is lifted relative to the outer cylinder, the conical ball stop closes the ball outlet, and when the outer cylinder is lifted relative to the inner cylinder, the annular opening is formed between the conical ball stop and the conical surface.

[0010] The bearing basket enters or exits the box type tempering furnace through the trolley, and the first flange plate is detachably connected with the second flange plate.

[0011] Preferably, the furnace body is provided with a refractory fiber furnace lining.

[0012] Preferably, the air duct pipe is a telescopic exhaust hose.

[0013] Preferably, the trolley driving mechanism is connected with the trolley and used for driving the trolley to move along the track, and the trolley limiting switch is connected with the trolley driving mechanism.

[0014] Preferably, the furnace body is provided with a thermocouple for detecting the hearth temperature.

[0015] Preferably, the furnace door lifting mechanism is a transmission chain mechanism, and the furnace door is connected with the transmission chain of the transmission chain mechanism and used for driving the furnace door to lift.

[0016] Preferably, the outer cylinder is externally provided with a reinforcing ring, and the reinforcing ring is welded with each steel column.

[0017] Preferably, the outer ring of the base is provided with a support seat.

[0018] Preferably, the outer periphery of the base is provided with a plurality of ventilation openings.

[0019] Preferably, the ventilation hole is a strip-shaped hole.

[0020] The steel ball tempering system has the advantages that the box type tempering furnace is provided with a main air duct and an air duct pipe, the bearing basket is provided with an inner cylinder with ventilation holes, the air duct pipe is detachably connected with the inner cylinder, hot air is circulated to the inside of the bearing basket, the ventilation effect inside the bearing basket is improved, the outer cylinder of the bearing basket is surrounded by a plurality of steel columns, the contact area of the steel balls and the hot air is increased, the inner cylinder and the outer cylinder form an annular space structure, and internal steel ball accumulation can be avoided.

[0021] Other features and advantages of the present application will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which similar reference characters refer to similar features throughout the several views. In the example embodiments, like reference numerals refer to like parts throughout the several views.

[0023] Figure 1 It is an internal structure schematic view of the steel ball tempering system of one embodiment of the present application.

[0024] Figure 2The main view of the bearing basket of one embodiment of the utility model.

[0025] Figure 3 The upper perspective structure schematic view of the bearing basket of one embodiment of the utility model.

[0026] Figure 4 The lower perspective structure schematic view of the bearing basket of one embodiment of the utility model.

[0027] Figure 5 For Figure 2 A-A view.

[0028] Figure 6 The unloading state view of the bearing basket of one embodiment of the utility model.

[0029] Mark explanation:

[0030] 1, furnace door lifting mechanism, 2, furnace door, 3, main air duct, 4, air duct pipe, 5, first flange, 6, trolley driving mechanism, 7, trolley, 8, trolley limit switch, 9, bearing basket, 10, furnace lining, 11, hearth, 12, thermocouple, 13, furnace body, 14, circulating fan, 15, second flange, 16, inner cylinder, 17, top ring, 18, ventilation hole, 19, reinforcing ring, 20, outer cylinder, 21, base, 22, steel column, 23, steel ball, 24, ventilation opening, 25, conical ball block, 26, support seat, 27, conical surface. Specific implementation

[0031] The preferred embodiments of the utility model will be described in more detail below. Although the preferred embodiments of the utility model are described below, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the utility model more thorough and complete, and to fully convey the scope of the utility model to those skilled in the art.

[0032] As Figures 1-6 shown, the steel ball tempering system according to one embodiment of the utility model comprises:

[0033] The box type tempering furnace comprises a furnace body 13, a furnace door 2 arranged on one side of the furnace body 13, a furnace door lifting mechanism 1 connected with the furnace door 2, a trolley 7 arranged at the bottom of the furnace body 13, an electric resistance heater arranged on the inner side wall of the furnace body 13, a circulating fan 14 arranged at the top of the furnace body 13, a main air duct 3 connected with the circulating fan 14, and a plurality of air duct pipes 4 connected with the main air duct 3, wherein the lower end of each air duct pipe 4 is provided with a first flange 5.

[0034] As Figure 2As shown, the bearing basket 9 comprises an outer cylinder 20, an inner cylinder 16, a base 21 and a top ring 17. The outer cylinder 20 is surrounded by a plurality of steel columns 22. The top ring 17 is provided with a ball inlet. The bottom of the steel column 22 is welded to the base 21. The top of the steel column 22 is welded to the top ring 17. The inner periphery of the base 21 is provided with a downwardly inclined conical surface 27. The middle of the conical surface 27 is provided with a ball outlet. Figures 3 to 5 As shown, the bottom of the inner cylinder 16 is provided with a conical ball stop 25. The outer wall of the inner cylinder 16 is uniformly provided with a plurality of ventilation holes 18. The outer periphery of the conical ball stop 25 cooperates with the inner periphery of the conical surface 27. When the inner cylinder 16 is lifted relative to the outer cylinder 20, the conical ball stop 25 closes the ball outlet. When the outer cylinder 20 is lifted relative to the inner cylinder 16, an annular opening is formed between the conical ball stop 25 and the conical surface 27. Figure 1 As shown, the bearing basket 9 enters or exits the box-type tempering furnace through the trolley 7. The top of the inner cylinder 16 is provided with a second flange plate 15. The first flange plate 5 is detachably connected to the second flange plate 15.

[0035] The box-type tempering furnace is provided with a main air duct 3 and a plurality of air duct pipes 4 connected to the main air duct 3. The bearing basket 9 is provided with an inner cylinder 16 with ventilation holes. The air duct pipe 4 is detachably connected to the inner cylinder 16, so as to circulate hot air to the inside of the bearing basket 9, thereby improving the ventilation effect inside the bearing basket 9. The outer cylinder of the bearing basket 9 is surrounded by a plurality of steel columns 22, thereby increasing the contact area between the steel balls and the hot air. The inner cylinder 16 and the outer cylinder 20 form an annular space structure, which can avoid the accumulation of internal steel balls.

[0036] In this embodiment, the furnace body 13 is provided with a refractory fiber lining, which plays a role in heat insulation and heat preservation.

[0037] In this embodiment, the air duct pipe 4 is a telescopic exhaust hose, which is convenient for connecting the air duct pipe 4 to the inner cylinder 16 of the bearing basket 9.

[0038] In this embodiment, as shown, Figure 1 The trolley driving mechanism 6 is connected to the trolley 7 and is used to drive the trolley 7 to move along the track. The trolley limit switch 8 is connected to the trolley driving mechanism 6 and is used to control the start and stop of the trolley driving mechanism 6.

[0039] In this embodiment, as shown, Figure 1 The furnace body 13 is provided with a thermocouple 12 for detecting the temperature of the furnace.

[0040] In this embodiment, as shown, Figure 1 The furnace door lifting mechanism 1 is a transmission chain mechanism. The furnace door 2 is connected to the transmission chain of the transmission chain mechanism, which is used to drive the lifting of the furnace door 2.

[0041] In this embodiment, as shown, Figure 5 The outer cylinder 20 is provided with a reinforcing ring 19 outside. The reinforcing ring 19 is welded to each steel column 22.

[0042] In this embodiment, if Figure 4 As shown, the outer ring of the base 21 is provided with a support seat 26, which can improve the stability when the carrying basket 9 is placed.

[0043] In this embodiment, if Figure 3 As shown, a plurality of ventilation holes 24 are provided on the periphery of the base 21, and the ventilation holes 24 are connected to the bottom of the conical surface 27 to improve the heat exchange effect at the bottom of the carrying basket 9. The ventilation holes 18 of the inner tube 16 are strip holes, which can increase the ventilation efficiency inside the carrying basket 9.

[0044] like Figure 1 As shown, after the quenching process, the steel balls are placed in the lower end of the ball guide groove and loaded from the ball inlet on the upper part of the carrying basket 9. The steel balls 23 are evenly distributed between the inner cylinder 16 and the outer cylinder 20. The crane lifts the inner cylinder 16 and lifts the carrying basket 9 onto the trolley 7 of the box-type tempering furnace. The air duct pipe 4 is connected to the inner cylinder 16. The trolley drive mechanism 6 drives the trolley 7 into the furnace 11 to perform the tempering process of the steel balls 23. The resistance heater on the inner wall of the furnace body 13 heats the air in the furnace 11. The circulating fan 14 sends the hot air in the furnace 11 into the inner cylinder 16 of the carrying basket 9 through the main air duct 4 and the air duct pipe 4. Figure 1 As shown by the arrow, hot air is discharged from the ventilation hole 18 of the carrying basket 9 to heat the steel balls 23 inside the carrying basket 9, which can better improve the ventilation inside the ball bucket. An annular space is formed between the inner cylinder 16 and the outer cylinder 20 to increase the heating area and improve the problem of uneven heating of the steel balls 23. The base 21 of the carrying basket 9 is provided with a ventilation port 24, and the outer cylinder 20 of the carrying basket 9 is surrounded by multiple steel columns 22, which improves the overall tempering heating efficiency and makes the heating speed of the steel balls 23 in the carrying basket 9 consistent, thereby improving the overall heating uniformity of the steel balls 23.

[0045] like Figure 6 As shown, after the tempering process of the steel balls 23 is completed, the carrying basket 9 is taken out of the box-type tempering furnace and hoisted above the steel ball storage area. The outer cylinder 20 is lifted relative to the inner cylinder 16 by the starter, so that an annular opening is formed between the conical ball stop 25 and the conical surface 27 to realize automatic ball unloading.

[0046] While the embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A steel ball tempering system characterized by, The box type tempering furnace comprises a furnace body, a furnace door arranged on one side of the furnace body, a furnace door lifting mechanism connected with the furnace door, a trolley arranged at the bottom of the furnace body, an electric resistance heater arranged on the inner side wall of the furnace body, a circulating fan arranged at the top of the furnace body, a main air duct connected with the circulating fan, and a plurality of air duct pipes connected with the main air duct, wherein the lower end of each air duct pipe is provided with a first flange plate. The carrying basket comprises an outer cylinder, an inner cylinder, a base and a top ring, wherein the outer cylinder is surrounded by a plurality of steel columns, the top ring is provided with a ball inlet, the bottom of each steel column is welded with the base, the top of each steel column is welded with the top ring, the inner periphery of the base is provided with a downward inclined conical surface, the middle part of the conical surface is provided with a ball outlet, the top of the inner cylinder is provided with a second flange plate, the bottom of the inner cylinder is provided with a conical ball stopper, the outer wall of the inner cylinder is uniformly provided with a plurality of ventilation holes, and the outer periphery of the conical ball stopper is matched with the inner periphery of the conical surface. The carrying basket enters or exits the box type tempering furnace through the trolley, and the first flange plate is detachably connected with the second flange plate. The furnace body is provided with a refractory fiber lining.

2. The steel ball tempering system of claim 1, wherein The air duct pipe is a telescopic exhaust hose.

3. The steel ball tempering system of claim 1, wherein The trolley driving mechanism is connected with the trolley and used for driving the trolley to move along the track.

4. The steel ball tempering system of claim 1, wherein The furnace body is provided with a thermocouple for detecting the temperature of the furnace chamber.

5. The steel ball tempering system of claim 1, wherein The furnace door lifting mechanism is a transmission chain mechanism, the furnace door is connected with the transmission chain of the transmission chain mechanism, and the transmission chain mechanism is used for driving the lifting of the furnace door.

6. The steel ball tempering system of claim 1, wherein The outer cylinder is externally sleeved with a reinforcing ring, and the reinforcing ring is welded with each steel column.

7. The steel ball tempering system of claim 1, wherein The outer ring of the base is provided with a support seat.

8. The steel ball tempering system of claim 1, wherein The outer periphery of the base is provided with a plurality of ventilation holes.

9. The steel ball tempering system of claim 1, wherein The ventilation holes are strip-shaped holes.

10. The steel ball tempering system of claim 1, wherein, ​

Images