Energy-saving steel pipe annealing equipment

Abstract

The utility model discloses energy-saving steel pipe annealing equipment which comprises a rack, a preheating mechanism, a quenching mechanism and a feeding mechanism are arranged on the rack, a feeding chute is arranged on one side of the preheating mechanism, and the feeding chute is communicated with the preheating mechanism; intermediate frequency equipment is arranged in the rack and connected with the quenching mechanism, a discharging slide way and a feeding slide way are arranged in a heat shielding cover of the preheating mechanism from bottom to top, heat emitted by the quenched steel pipe is used for preheating the steel pipe to be quenched, and therefore the energy utilization efficiency is improved; external energy input required during quenching is also reduced; the heat shield enables heat emitted in the cooling process of the steel pipe to fully preheat the steel pipe to be quenched, the utilization rate of the heat is improved, the preheating effect is further enhanced through the feeding slide way and the discharging slide way which are composed of the supporting rods and the fixing rings, and the whole quenching process is more efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to energy-saving steel pipe annealing equipment. Background Art

[0002] Quenching is a common heat treatment process in mechanical processing, which aims to improve the hardness and wear resistance of steel pipes through rapid cooling; however, the traditional quenching process cools the quenched steel pipes through cooling equipment. This process not only increases additional energy consumption, but also causes waste of heat dissipated during the cooling process of the steel pipes.

[0003] At present, the industrial field has increasingly higher requirements for the effective use of energy and environmental protection. Reducing energy consumption and reducing heat loss have become important directions for the development of the manufacturing industry. Therefore, how to effectively utilize the heat dissipated during the cooling process and reduce energy consumption while ensuring the quality of steel pipe quenching has become an urgent problem to be solved. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, to provide an energy-saving steel pipe annealing equipment, and to solve the technical problems raised in the background technology.

[0005] In order to achieve the above technical objectives, the technical solution of the utility model provides an energy-saving steel pipe annealing equipment, including: a frame, the frame is provided with a preheating mechanism, a quenching mechanism and a feeding mechanism, one side of the preheating mechanism is provided with a feeding chute, the feeding chute is connected to the preheating mechanism; an intermediate frequency device is provided inside the frame, the intermediate frequency device is connected to the quenching mechanism; the quenching mechanism is provided between the feeding mechanism and the preheating mechanism; the preheating mechanism includes a heat shield, the heat shield is provided with A discharging chute and a feeding chute, wherein the feeding chute is arranged above the discharging chute, the heat shield is provided with a through hole connected with the discharging chute and the feeding chute, one end of the discharging chute is opposite to the discharging end of the quenching mechanism, and a hopper is arranged on the frame at the other end, an inclined chute is arranged above the quenching mechanism, the upper end of the inclined chute is opposite to the feeding chute, and the lower end is opposite to the loading mechanism, a pushing mechanism is arranged on the heat shield at one end of the feeding chute, and the pushing mechanism pushes the steel pipe in the feeding chute into the inclined chute.

[0006] Furthermore, a feed hole connected to a feed chute is provided on the heat shield, an inclined plate is provided on the lower edge of the feed hole, the lower end of the inclined plate extends to the feed slide, a baffle is slidably provided on the inner wall of the heat shield, and the pushing mechanism comprises a pushing cylinder provided on the heat shield, a piston rod of the pushing cylinder is provided on one end in the feed slide and connected to the baffle, a guide rod tangent to the outer edge of the push plate is provided on the push plate, and the guide rod passes through the heat shield.

[0007] Furthermore, the quenching mechanism includes a quenching bracket, a liner is provided on the quenching bracket, the inclined groove is provided on the top of the quenching bracket, a spiral conductor is provided on the liner, and the spiral conductor is electrically connected to the intermediate frequency device.

[0008] Furthermore, the feeding mechanism includes a V-shaped groove and a telescopic screw, the V-shaped groove is arranged between the telescopic screw and the quenching mechanism, and the telescopic screw is driven by a servo motor.

[0009] Furthermore, a hair dryer is arranged on the frame below the heat shield, and an exhaust hood is arranged above the inclined slot.

[0010] Furthermore, the discharging chute and the feeding chute are both composed of a plurality of support rods and coaxial fixing rings, the support rods are arranged in a circular array on the fixing rings, and an opening is provided on a section of the support rod of the feeding chute that is opposite to the feeding chute.

[0011] Furthermore, the support rods of the discharging chute are hollow metal tubes that are interconnected, and the support rods are connected to the water circulation equipment and the heat dissipation equipment.

[0012] Compared with the prior art, the beneficial effects of the utility model include:

[0013] 1. The utility model arranges a discharging chute and a feeding chute from bottom to top in the heat shield, and utilizes the heat emitted by the quenched steel pipe to preheat the steel pipe to be quenched, which not only improves the energy utilization efficiency, but also reduces the external energy input required for quenching; the heat shield enables the heat emitted by the steel pipe during the cooling process to fully preheat the steel pipe to be quenched, thereby improving the utilization rate of heat, and the blower and the feeding and discharging chute composed of the support rod and the fixing ring further enhance the preheating effect, making the entire quenching process more efficient.

[0014] 2. The utility model uses a telescopic screw driven by a servo motor to push the steel pipe for quenching, and can flexibly adjust the quenching time according to the thickness and diameter of the steel pipe, effectively avoiding the problem of overheating or insufficient heating, and improving energy utilization efficiency. At the same time, the cooperation of the pushing cylinder and the guide rod and other mechanisms realizes the automatic feeding and preheating of the steel pipe, reduces manual operation, and improves the degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an axonometric schematic diagram of an energy-saving steel pipe annealing device provided by the utility model;

[0016] Figure 2 The utility model provides an axonometric cross-sectional schematic diagram of an energy-saving steel pipe annealing device. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Reference Figure 1 The utility model provides an energy-saving steel pipe annealing equipment, including a frame 1, a hopper 2 and a telescopic screw 3 driven by a servo motor are respectively installed at both ends of the frame 1, a preheating mechanism 4, a quenching bracket 5 and a V-shaped groove 9 are installed on the frame 1, the quenching bracket 5 is installed between the preheating mechanism 4 and the V-shaped groove 9, a liner 6 is installed on the quenching bracket 5, a spiral wire 7 is wound on the liner 6, an intermediate frequency device 12 is installed inside the frame 1, and the intermediate frequency device 12 is electrically connected to the spiral wire 7.

[0019] During operation, the steel pipe is placed on the V-shaped groove 9 and pushed into the liner 6 by the telescopic screw 3 for heating and quenching. Since the telescopic screw 3 is driven by a servo motor, the extension speed of the telescopic screw 3 can be adjusted according to the thickness and diameter of the steel pipe, thereby changing the quenching time.

[0020] Reference Figure 1 , Figure 2 The preheating mechanism 4 includes a heat shield 401 fixedly mounted on the frame 1, a feed chute 403 and a discharge chute 402 are sequentially mounted in the heat shield 401 from top to bottom, a through hole communicating with the discharge chute 402 and the feed chute 403 is opened on the heat shield 401, one end of the discharge chute 402 is opposite to the liner 6, and a hopper 2 is mounted on the frame 1 at the other end.

[0021] During operation, the telescopic screw 3 pushes the quenched steel pipe into the discharge chute 402. The heat emitted by the steel pipe under the action of the heat shield 401 preheats the steel pipe to be quenched in the feed chute 403 above it. In order to improve the preheating effect, a hair dryer is installed on the frame 1 below the heat shield 401 in actual application.

[0022] The discharge chute 402 and the feed chute 403 are both composed of a plurality of support rods and coaxial fixed rings, the support rods are arranged in a circular array on the fixed ring, an opening is provided on a section of the support rod of the feed chute 403 that is opposite to the feed chute 11, a feed hole connected to the feed chute 11 is provided on the heat shield 401, an inclined plate 14 is installed at the lower edge of the feed hole, the lower end of the inclined plate 14 extends to the support rod opening of the feed chute 403, a baffle 13 is slidably provided on the inner wall of the heat shield 401, the baffle 13 can completely close the feed hole, a push cylinder 12 is installed on the heat shield 401, a push plate is installed on one end of the piston rod of the push cylinder 12 that is arranged in the feed chute 403 and is connected to the baffle 13, a guide rod tangent to its outer edge is installed on the push plate, and the guide rod passes through the heat shield 401.

[0023] A chute 8 is installed on the top of the quenching bracket 5, the upper end of the chute 8 is opposite to the feed slide 403, and the lower end is opposite to the V-shaped groove 9. When working, the pushing cylinder 12 pushes the steel pipe to be quenched out of the feed slide 403, and then slides along the chute 8 into the V-shaped groove 9. When the piston rod of the pushing cylinder 12 is extended, it drives the baffle 13 to slide and open the feed hole. The steel pipe in the feed chute 11 rolls onto the chute 14. Due to the obstruction of the guide rod, it will not continue to roll between the push plate and the heat shield 401. When the piston rod of the pushing cylinder 12 retracts, the baffle 13 slides to close the feed hole, and at the same time, the steel pipe rolls along the chute 14 into the feed slide 403.

[0024] In practical applications, in order to increase the cooling rate of the quenched steel pipe, the support rods of the discharge chute 402 can be hollow metal tubes that are interconnected, and the support rods are connected to the water circulation equipment and the heat dissipation equipment; in order to ensure the normal operation of the medium frequency heating equipment, an exhaust hood 10 is provided above the chute 8 to avoid heat accumulation near the spiral conductor 7. In order to reduce heat radiation to the operator, a heat insulation hood is usually installed on the frame 1, and the exhaust hood 10 is installed on the top of the heat insulation hood.

[0025] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An energy-saving steel pipe annealing device, comprising a frame, on which are arranged: A preheating mechanism, wherein a feed chute is provided on one side of the preheating mechanism, and the feed chute is connected to the preheating mechanism; A quenching mechanism, wherein an intermediate frequency device is disposed inside the frame, and the intermediate frequency device is connected to the quenching mechanism; A feeding mechanism, wherein the quenching mechanism is arranged between the feeding mechanism and the preheating mechanism; Features: The preheating mechanism includes a heat shield, a discharging chute and a feeding chute are arranged in the heat shield, the feeding chute is arranged above the discharging chute, the heat shield is provided with a through hole connected with the discharging chute and the feeding chute, one end of the discharging chute is opposite to the discharging end of the quenching mechanism, and a hopper is arranged on the frame at the other end, an inclined chute is arranged above the quenching mechanism, the upper end of the inclined chute is opposite to the feeding chute, and the lower end is opposite to the loading mechanism, and a pushing mechanism is arranged on the heat shield at one end of the feeding chute, and the pushing mechanism pushes the steel pipe in the feeding chute into the inclined chute.

2. The energy-saving steel pipe annealing equipment according to claim 1, characterized in that: The heat shield is provided with a feed hole connected with the feed chute, an inclined plate is provided at the lower edge of the feed hole, the lower end of the inclined plate extends to the feed slide, a baffle is slidably provided on the inner wall of the heat shield, the pushing mechanism comprises a pushing cylinder provided on the heat shield, a push plate is provided on one end of the piston rod of the pushing cylinder which is provided in the feed slide and connected to the baffle, a guide rod tangent to the outer edge of the push plate is provided on the push plate, and the guide rod passes through the heat shield.

3. The energy-saving steel pipe annealing equipment according to claim 2 is characterized in that: The quenching mechanism comprises a quenching bracket, a liner is arranged on the quenching bracket, the inclined slot is arranged on the top of the quenching bracket, a spiral conductor is arranged on the liner, and the spiral conductor is electrically connected to the intermediate frequency device.

4. An energy-saving steel pipe annealing equipment according to claim 2 or 3, characterized in that: The feeding mechanism comprises a V-shaped groove and a telescopic screw, wherein the V-shaped groove is arranged between the telescopic screw and the quenching mechanism, and the telescopic screw is driven by a servo motor.

5. The energy-saving steel pipe annealing equipment according to claim 4 is characterized in that: A blower is arranged on the frame below the heat shield, and an exhaust hood is arranged above the inclined slot.

6. The energy-saving steel pipe annealing equipment according to claim 5, characterized in that: The discharging chute and the feeding chute are both composed of a plurality of support rods and a coaxial fixing ring. The support rods are arranged in a circular array on the fixing ring. An opening is provided on a section of the support rod of the feeding chute that is directly opposite to the feeding chute.

7. The energy-saving steel pipe annealing equipment according to claim 6, characterized in that: The support rods of the discharging slideway are hollow metal tubes that are interconnected, and the support rods are connected to the water circulation equipment and the heat dissipation equipment.

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