Steel ball conveying and cooling device for steel ball production line

Abstract

The utility model discloses a steel ball conveying and cooling device for a steel ball production line, which comprises an underground vestibule, a heat preservation layer is arranged on the peripheral side wall of the underground vestibule, and an air inlet is formed in an upper cover of the underground vestibule; the chain plate type conveyor is arranged in the underground vestibule in the length direction of the underground vestibule; an air inlet of the air blower is formed in one end of the underground vestibule, and an air outlet of the air blower is connected with the air outlet pipeline; the chain elevator is arranged at the other end of the underground vestibule, one end of the chain elevator is connected with the chain plate type conveyor, and the other end of the chain elevator is connected with the quenching bath; according to the steel ball conveying and cooling device for the ball rolling production line, rolled steel balls are conveyed to the quenching pool through the underground vestibule, the air blower is arranged in the underground vestibule, the cooling temperature of the steel balls is better controlled, the cooling temperature of the steel balls in the underground vestibule is not affected by the external environment, and meanwhile the situation that the temperature of an operation area is too high is avoided; the working environment of field workers is improved, and noise is eliminated.

Description

Technical Field

[0001] The utility model belongs to the field of steel ball conveying and temperature control, in particular to a steel ball conveying and cooling device used in a steel ball production line. Background Art

[0002] On the ball rolling production line, for low alloy round steel, the rolling temperature is 1050-1100℃, the temperature of the steel ball after rolling is 980-1020℃, and the steel ball needs to be quenched after rolling. The quenching temperature of the steel ball is AC3 line (+30-50)°, and the quenching temperature is controlled at 830±10℃.

[0003] Existing large diameter steel ball (φ100) conveying cooling device such as Figure 1 As shown, the steel balls are arranged in an open space on site along a multi-section spiral cooling conveyor 13 and a multi-section chute 12. The steel balls are transported and cooled by rolling back and forth between the spiral cooling conveyor 13 and the chute 12. Each section of the spiral cooling conveyor is erected on the ground through a bearing seat 14. The cooling of the steel balls is achieved by setting the length and conveying speed of the multi-section spiral cooling conveyor 13. The existing conveying and cooling device has the following problems: 1. Since the steel balls are exposed to the air, they are affected by the external temperature and the rolling temperature fluctuations, resulting in unstable quenching temperature of the steel balls, which affects the mechanical properties of the steel balls; 2. The steel balls rub against the spiral conveyor, generating a lot of noise; at the same time, due to the heat dissipation of the steel balls, the temperature in the workroom is high, especially in summer, which is harmful to the health of the workers. Utility Model Content

[0004] The utility model aims to provide a steel ball conveying and cooling device for a steel ball production line, which can better control the cooling temperature of the steel balls, eliminate noise, and reasonably utilize heat energy.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The utility model discloses a steel ball conveying and cooling device for a steel ball production line, comprising:

[0007] An underground corridor, wherein the side walls of the underground corridor are provided with a heat-insulating layer, and the upper cover of the underground corridor is provided with an air inlet;

[0008] A chain plate conveyor is arranged in the underground corridor along the length direction of the underground corridor;

[0009] A blower, wherein the air outlet of the blower is connected to the air outlet duct;

[0010] A chute, one end of which is connected to the ball outlet end of the rolling mill, and the other end of which extends into the underground corridor and is connected to the chain plate conveyor;

[0011] A chain hoist, wherein the chain hoist is arranged at the other end of the underground corridor, one end of the chain hoist is connected to the chain plate conveyor, and the other end is connected to the quenching pool;

[0012] A temperature measuring unit is arranged in the underground corridor and is used to detect the temperature of the underground corridor.

[0013] Preferably, a controller is further included, which is connected to the temperature measuring unit and the blower respectively, and the controller controls the rotation speed of the blower according to the temperature in the underground corridor detected by the temperature measuring unit.

[0014] Preferably, the chain plate conveyor is arranged on one side of the underground corridor, and the other side of the underground corridor is set as a maintenance passage.

[0015] Preferably, the upper cover of the underground corridor is provided with a peep window.

[0016] Preferably, the air inlet is arranged on the upper cover close to the chain hoist.

[0017] Preferably, the air outlet duct is connected to the tempering tank for conveying hot air into the tempering tank.

[0018] Preferably, the air outlet duct is connected to a heat exchanger.

[0019] Preferably, a pair of transmission chains inclined upward are connected to a plurality of chain buckets between the pair of transmission chains, sprocket shafts are provided at both ends of the transmission chains, the sprocket shafts are installed on the lifting frame body through bearing seats, and the motor is connected to the sprocket shafts, thereby driving the transmission chains to rotate and driving the chain buckets to move upward.

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model is used for the steel ball conveying and cooling device of the ball rolling production line. The rolled steel balls are cooled through the underground corridor and then conveyed to the quenching pool. The underground corridor is provided with a blower to better control the cooling temperature of the steel balls. The underground corridor is not affected by the external environment and the temperature in the working area is prevented from being too high, thereby improving the working environment of the on-site workers and eliminating noise.

[0022] 2. The hot air after cooling and heat exchange of the steel balls is transported to the tempering tank and used as the heat source for the steel ball tempering process, so that the heat energy is reasonably utilized.

[0023] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By describing the exemplary embodiments of the present invention in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present invention will become more apparent. In the exemplary embodiments, the same reference numerals generally represent the same components.

[0025] Figure 1 This is a schematic diagram of the structure of an existing φ100 steel ball conveying and cooling device.

[0026] Figure 2 The present invention shows a schematic structural diagram of a steel ball conveying and cooling device for a steel ball production line according to an embodiment of the present invention.

[0027] Figure 3 A schematic diagram showing the working state of a steel ball conveying and cooling device for a steel ball production line according to an embodiment of the utility model is shown.

[0028] Figure 4 for Figure 3 AA section view.

[0029] Explanation of the reference numerals: 1. air outlet duct; 2. blower; 3. peep window; 4. underground corridor; 5. chain plate conveyor; 6. upper cover; 7. temperature measuring unit; 8. chain elevator; 9. quenching pool; 10. air inlet; 11. maintenance passage; 12. chute; 13. spiral cooling conveyor; 14. bearing seat. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention 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 present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0031] like Figures 2 to 4As shown, a steel ball conveying and cooling device for a steel ball production line according to an embodiment of the utility model comprises: an underground corridor 4, wherein the side walls around the underground corridor 4 are provided with a heat-insulating layer, and the upper cover 6 of the underground corridor 4 is provided with an air inlet 10; a chain plate conveyor 5, which is arranged in the underground corridor 4 along the length direction of the underground corridor 4; a blower 2, wherein the air inlet of the blower 2 is arranged at one end of the underground corridor 4, and the air outlet of the blower 2 is connected to the air outlet duct 1; a chain type hoist 8, wherein the chain type hoist 8 is arranged at the other end of the underground corridor 4, wherein one end of the chain type hoist 8 is connected to the chain plate conveyor 5, and the other end is connected to the quenching pool 9; a temperature measuring unit 7, wherein the temperature measuring unit 7 is arranged in the underground corridor 4, and is used for detecting the temperature of the underground corridor 4; and further comprising a controller (not shown), wherein the controller is respectively connected to the temperature measuring unit 7 and the blower 2, and controls the rotation speed of the blower 2 according to the temperature of the underground corridor 4 detected by the temperature measuring unit.

[0032] Specifically, Figure 3 As shown, the underground corridor 4 is built underground, and the surrounding side walls of the underground corridor 4 are sealed and insulated to reduce the influence of the external environment temperature on the steel balls of the underground corridor 4, while also not affecting the temperature of the workroom, thereby improving the working environment of the workers on site; the air inlet 10 is provided with a sliding opening, and the opening size of the air inlet 10 can be adjusted according to the air volume; as shown Figure 3 As shown in the direction of the middle arrow, the rolled steel balls enter the chain plate conveyor 5 in the underground corridor 4 through the chute 12, and the steel balls are transported from one end of the underground corridor to the other end through the chain plate conveyor 5, and the steel balls are taken out of the underground corridor 4 through the chain hoist 8. The blower 2 is connected to the air outlet duct 1, and the hot air in the underground corridor 4 is discharged through the air outlet duct 1 on one side, and the cold air from the air inlet 10 is sucked into the underground corridor 4 on the other side, so as to cool the steel balls on the chain plate conveyor 5.

[0033] Specifically, Figure 3 As shown, a temperature measuring unit 7 is provided above the output end of the chain plate conveyor 5, and the temperature measuring unit 7 is connected to the blower 3 through a controller. The temperature measuring unit 7 detects the temperature of the underground corridor 4, and adjusts the speed of the blower 2 through the controller so that the ambient temperature in the underground corridor 4 meets the cooling temperature of the steel balls. As a preferred solution, the temperature measuring unit 7 is a thermocouple.

[0034] Specifically, the chain elevator 8 includes: a pair of transmission chains arranged upwardly inclined, a plurality of chain buckets connected between the pair of transmission chains, sprocket shafts are provided at both ends of the transmission chains, the sprocket shafts are installed on the elevator frame through bearing seats, and the motor is connected to the sprocket shafts, thereby driving the chain to rotate and driving the chain buckets to move upward, thereby bringing the steel balls out of the underground corridor 4 and conveying them to the quenching pool 9.

[0035] In this embodiment, if Figure 4As shown, the chain plate conveyor 5 is arranged on one side of the underground corridor 4, and the other side of the underground corridor 4 is set as a maintenance passage 11, which is convenient for workers to enter the underground corridor 4 for maintenance.

[0036] In this embodiment, if Figure 4 As shown, the upper cover 6 of the underground corridor 4 is provided with a peep window 3, which is used to observe the operation of the equipment. The peep window 3 is easy to disassemble, so that workers can enter the underground corridor 4 for maintenance.

[0037] In this embodiment, if Figure 3 As shown, the air inlet 10 is arranged on the upper cover 6 near the chain hoist 8, and the air inlet 10 and the blower 2 are respectively arranged at both ends of the underground corridor 4, so that the temperature at various places in the underground corridor 4 is consistent, thereby improving the cooling efficiency of the steel balls.

[0038] In this embodiment, the air outlet duct 1 is connected to the tempering tank (not shown) to transport hot air into the tempering tank to provide a heat source for the steel ball tempering process, thereby rationally utilizing the heat energy generated after heat exchange. In another embodiment, the air outlet duct 1 is connected to the heat exchange gas, and the hot air can be used to heat heating equipment and domestic water after heat exchange through a heat exchanger.

[0039] When the steel ball conveying and cooling device for the steel ball production line of this embodiment is used, the upper cover 6 of the underground corridor 4 is provided with a peep window 3 and an air inlet 10. The peep window 3 is used to observe the operation of the equipment, and the peep window is used as the entrance when the equipment is installed and repaired. One end of the underground corridor 4 is connected to the air outlet duct 1, and the blower is installed on the output air duct 1. The steel balls enter the chain plate conveyor 5 in the underground corridor 4 through the chute 12 from the ball outlet end of the rolling mill. The end of the chain plate conveyor 5 is connected to the chain hoist 8, and the cooled steel balls are taken out of the underground corridor 4 and transported to the quenching pool 9 to enter the next heat treatment process. The hot air after the steel balls are cooled and heat exchanged is transported to the tempering tank through the air outlet duct 1, which is used as the heat source for the steel ball tempering process, so that the heat energy is reasonably utilized.

[0040] The steel ball conveying and cooling device for the ball rolling production line of this embodiment cools the rolled steel balls through the underground corridor 4 and then conveys them to the quenching pool 9. The underground corridor 4 is not affected by the external environment, and the cooling temperature of the steel balls is controllable. At the same time, the temperature in the working area is prevented from being too high, thereby improving the working environment of on-site workers and eliminating noise.

[0041] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is 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 conveying and cooling device for a steel ball production line, It is characterized in that include: An underground corridor, wherein the side walls of the underground corridor are provided with a heat-insulating layer, and the upper cover of the underground corridor is provided with an air inlet; A chain plate conveyor is arranged in the underground corridor along the length direction of the underground corridor; A blower, wherein the air outlet of the blower is connected to the air outlet duct; A chute, one end of which is connected to the ball outlet end of the rolling mill, and the other end of which extends into the underground corridor and is connected to the chain plate conveyor; A chain hoist, wherein the chain hoist is arranged at the other end of the underground corridor, one end of the chain hoist is connected to the chain plate conveyor, and the other end is connected to the quenching pool; A temperature measuring unit is arranged in the underground corridor and is used to detect the temperature in the underground corridor.

2. The steel ball conveying and cooling device for a steel ball production line according to claim 1, It is characterized in that It also includes a controller, which is connected to the temperature measuring unit and the blower respectively, and controls the rotation speed of the blower according to the temperature in the underground corridor detected by the temperature measuring unit.

3. The steel ball conveying and cooling device for a steel ball production line according to claim 1, It is characterized in that The chain plate conveyor is arranged on one side of the underground corridor, and the other side of the underground corridor is set as a maintenance passage.

4. The steel ball conveying and cooling device for a steel ball production line according to claim 1, It is characterized in that The upper cover of the underground corridor is provided with a peep window.

5. The steel ball conveying and cooling device for a steel ball production line according to claim 1, It is characterized in that The air inlet is arranged on the upper cover close to the chain hoist.

6. The steel ball conveying and cooling device for a steel ball production line according to claim 1, It is characterized in that The air outlet duct is connected to the tempering tank and is used for conveying hot air into the tempering tank.

7. The steel ball conveying and cooling device for a steel ball production line according to claim 1, It is characterized in that The air outlet duct is connected to the heat exchanger.

8. The steel ball conveying and cooling device for a steel ball production line according to claim 1, It is characterized in that The chain hoist includes: a pair of transmission chains arranged upwardly tilted, a plurality of chain buckets connected between the pair of transmission chains, sprocket shafts are provided at both ends of the transmission chains, the sprocket shafts are installed on the hoist frame through bearing seats, and the motor is connected to the sprocket shafts, thereby driving the transmission chains to rotate and driving the chain buckets to move upward.

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