CN215440606U

CN215440606U - Steel shot tempering furnace

Info

Publication number: CN215440606U
Application number: CN202122106849.5U
Authority: CN
Inventors: 马祎泽; 马志刚
Original assignee: Zibo Lubao Metal Products Co ltd
Current assignee: Zibo Lubao Metal Products Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-07
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a steel shot tempering furnace, which comprises a furnace body and a hot blast furnace, wherein the furnace body and the hot blast furnace are fixedly communicated through a hot blast pipe, a partition plate is sequentially arranged in the furnace body from top to bottom to divide the furnace body into a feeding cavity, a tempering cavity and a collecting cavity, a slide rail is fixedly connected in the furnace body, the upper surface of the slide rail is provided with a through groove, and the surface of the partition plate is provided with a circulation hole. Finally, the defective rate of the produced steel shots is too high.

Description

Steel shot tempering furnace

Technical Field

The utility model relates to the technical field of tempering of steel shots, in particular to a steel shot tempering furnace.

Background

The steel shot is a kind of spherical particles made of special material through special heat treatment. In the preparation process of the steel shots, the generally adopted equipment is a centrifugal machine, the centrifugal machine pours the melted high-carbon steel into a rotating centrifugal brick, and then steel shots with various sizes are thrown out by the centrifugal action of the centrifugal machine, the thrown steel shots fall into a quenching bath for rapid cooling, and the rapidly cooled steel shots are reheated and tempered, so that the steel shots reach the required hardness. In the tempering process, the steel shot generally adopts a high-temperature tempering treatment process, and aims to enable the steel shot to have better strength, plasticity and toughness so as to facilitate the steel shot to reach the use standard in various fields.

At present, in the process of tempering the steel shots, the steel shots are generally directly poured into a furnace body, and the carbon bricks are heated by coal gas, so that the steel shots on the carbon bricks are tempered. However, since the steel shots are quenched before tempering, the surface temperature of the steel shots is low, and the tempering temperature is high, so that the steel shots are suddenly heated during tempering, irregular expansion of the steel shots due to too fast thermal expansion may occur, and the defective rate of the produced steel shots is high; when the steel shots are manually fed into the tempering furnace, a plurality of steel shots may be put at one time, so that the steel shots are not tempered completely.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a steel shot tempering furnace which is provided with a slide rail and a buffer piece, wherein steel shots are heated gradually through the slide rail, a blanking assembly is arranged, the steel shots are sent into the tempering furnace at regular time, and incomplete tempering caused by excessive manual blanking is avoided, so that the problems in the background art are solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a shot tempering furnace, includes furnace body and hot-blast furnace, furnace body and hot-blast furnace pass through the fixed intercommunication of hot-blast main, from last to being equipped with down in proper order in the furnace body and separating into with the baffle and have feeding chamber, tempering chamber and collecting chamber, fixedly connected with slide rail in the furnace body, logical groove has been seted up to the slide rail upper surface, the opening has been seted up on the baffle surface, the opening matches the setting with the slide rail, opening below symmetry is provided with the buffer chip, fixed surface is connected with the bell on the furnace body, the bell upper surface is provided with the unloading subassembly, the furnace body lower surface rotates and is connected with ejection of compact spout.

Preferably, the tempering cavity is provided with one, the material collecting cavity is communicated with the hot air pipe, and a second pressure relief pipe and a first pressure relief pipe are sequentially connected between the tempering cavity and the tempering cavity from top to bottom.

Preferably, the first pressure relief pipe and the second pressure relief pipe are both provided with a pressure relief valve, and a pressure set value of the pressure relief valve on the second pressure relief pipe is greater than a pressure set value of the pressure relief valve on the first pressure relief pipe.

Preferably, the blanking assembly comprises a fixing frame, a pushing cylinder, a pressing plate, a placing frame and a baffle plate, the fixing frame is fixedly connected to the middle position of the upper surface of the furnace cover, the pushing cylinder is fixedly mounted on the surface of the fixing frame, the pressing plate is fixedly connected to the movable end of the pushing cylinder, the placing frame is fixedly connected to the upper surface of the furnace cover, and the baffle plate is fixedly connected to one side of the placing frame.

Preferably, the placing frame is matched with the feed inlet, one side, away from the feed inlet, of the placing frame is higher than one side, close to the feed inlet, of the placing frame, the baffle is fixedly connected to one side, close to the feed inlet, of the placing frame, and the baffle is matched with the feed inlet.

Preferably, the slide rail is spirally arranged, the slide rail is matched with the furnace body, and the slide rail is matched with the circulation hole

Preferably, the bottom of the furnace body is provided with a discharge opening, and the discharge chute is matched with the discharge opening.

Compared with the prior art, the utility model has the beneficial effects that:

1. the sliding rails are arranged to enable the steel shots to be gradually heated in the furnace body, the through grooves are arranged to accelerate the heating of the steel shots, the buffer pieces are used for limiting the rolling speed of the steel shots, the phenomenon that the heating speed of the steel shots is too high due to too high speed of the steel shots in the sliding rails is avoided, and the problems that the surface temperature of the steel shots is low and the tempering temperature is high due to the fact that the steel shots are quenched before tempering are solved to a certain extent, the steel shots are suddenly heated during tempering, irregular expansion of the steel shots due to too high thermal expansion can possibly occur, and the defective rate of the produced steel shots is too high finally are solved;

2. according to the utility model, the blanking assembly is arranged to send the steel shots into the tempering furnace, the pressing plate is driven to move by the pushing cylinder, and the steel shots on the buffer sheet are extruded by the pressing plate, so that the steel shots slide into the sliding rails, and the problem that the steel shots are not tempered thoroughly because a plurality of steel shots are possibly put into the tempering furnace at one time when the steel shots are manually sent into the tempering furnace is solved to a certain extent.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic perspective view of the present invention;

fig. 4 is a schematic perspective view of the slide rail according to the present invention.

In the figure: 1. a furnace body; 2. a furnace cover; 3. a hot blast stove; 4. a hot air pipe; 5. a first pressure relief tube; 6. a second pressure relief tube; 7. a blanking assembly; 701. a fixed mount; 702. a push cylinder; 703. pressing a plate; 704. placing a rack; 705. a baffle plate; 8. a feed inlet; 9. a discharge chute; 10. a partition plate; 11. a buffer sheet; 12. a slide rail; 13. a through groove; 14. a flow-through hole; 15. a feed cavity; 16. a tempering cavity; 17. a material collecting cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a steel shot tempering furnace comprises a furnace body 1 and a hot blast furnace 3, wherein the lower surface of the furnace body 1 is rotatably connected with a discharging chute 9. The bottom of the furnace body 1 is provided with a discharge hole, and the discharge chute 9 is matched with the discharge hole. The steel shots slide into the discharging chute 9 through the discharging opening, and the steel shots are conveyed to the next process through the discharging chute 9.

Furnace body 1 and hot-blast furnace 3 are through the fixed intercommunication of hot-blast main 4, and it has feeding chamber 15, tempering chamber 16 and collecting chamber 17 to be equipped with baffle 10 in proper order down from last in the furnace body 1, and tempering chamber 16 is provided with one, and collecting chamber 17 and hot-blast main 4 switch-on are from the top to having connected gradually second pressure release pipe 6 and first pressure release pipe 5 between tempering chamber 16 and the tempering chamber 16. All be equipped with the relief valve on first pressure release pipe 5 and the second pressure release pipe 6, the relief valve pressure setting value on the second pressure release pipe 6 is greater than the relief valve setting value on the first pressure release pipe 5. The temperature within each tempering chamber 16 will also gradually increase as the corresponding pressure in the relief valve increases.

Fixedly connected with slide rail 12 in the furnace body 1, logical groove 13 has been seted up to slide rail 12 upper surface, and slide rail 12 is the spiral setting, and slide rail 12 matches the setting with furnace body 1, and slide rail 12 matches the setting with circulation hole 14. The surface of the partition plate 10 is provided with a circulation hole 14, the circulation hole 14 is matched with the slide rail 12, the buffer sheets 11 are symmetrically arranged below the circulation hole 14, the upper surface of the furnace body 1 is fixedly connected with a furnace cover 2, and the upper surface of the furnace cover 2 is provided with a blanking assembly 7.

The blanking assembly 7 comprises a fixing frame 701, a pushing cylinder 702, a pressing plate 703, a placing frame 704 and a baffle 705, wherein the fixing frame 701 is fixedly connected to the center of the upper surface of the furnace cover 2, the pushing cylinder 702 is fixedly installed on the surface of the fixing frame 701, the pressing plate 703 is fixedly connected to the movable end of the pushing cylinder 702, the placing frame 704 is fixedly connected to the upper surface of the furnace cover 2, and the baffle 705 is fixedly connected to one side of the placing frame 704. Rack 704 matches the setting with feed inlet 8, and rack 704 keeps away from that feed inlet 8 side is higher than rack 704 and is close to feed inlet 8 one side, and baffle 705 fixed connection is close to feed inlet 8 one side in rack 704, and baffle 705 matches the setting with feed inlet 8, avoids the shot to dash out feed inlet 8, and furnace body 1 surface is provided with and promotes cylinder 702 assorted controller, can control the time interval that the shot got into furnace body 1 through the controller.

The steel shots are placed on the placing frame 704, the steel shots move to the position above the feeding hole 8 under the action of gravity, the steel shots are blocked on the surface of the furnace cover 2 under the action of the buffer sheet 11, other steel shots are sequentially placed on the surface of the placing frame 704, the pushing cylinder 702 is started within a set time, the pushing cylinder 702 drives the pressing plate 703 to move towards the direction of the feeding hole 8, and the steel shots are extruded to enter the position above the sliding rail 12 through the pressing plate 703. The steel shots move downwards gradually under the action of gravity in the sliding rail 12 and are tempered in the furnace body 1, the steel shots are blocked when passing through the buffer sheet 11 below the partition plate 10, the steel shots at the rear impact the steel shots at the front, the steel shots at the front are sent into the next chamber, the temperature is gradually raised, tempering is performed in sequence, the tempered steel shots are discharged through the circulation hole 14 and enter the next falling process through the discharging chute 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shot tempering furnace, includes furnace body (1) and hot-blast furnace (3), its characterized in that: furnace body (1) and hot-blast furnace (3) are through the fixed intercommunication of hot-blast main (4), from last to being equipped with baffle (10) down in proper order in furnace body (1) and separating into and have feeding chamber (15), tempering chamber (16) and collecting chamber (17), fixedly connected with slide rail (12) in furnace body (1), logical groove (13) have been seted up to slide rail (12) upper surface, circulation hole (14) have been seted up on baffle (10) surface, circulation hole (14) and slide rail (12) match the setting, circulation hole (14) below symmetry is provided with buffer block (11), fixed surface is connected with bell (2) on furnace body (1), bell (2) upper surface is provided with unloading subassembly (7), furnace body (1) lower surface rotation is connected with ejection of compact spout (9).

2. The steel shot tempering furnace of claim 1, wherein: the tempering cavity (16) is provided with one, the material collecting cavity (17) is communicated with the hot air pipe (4), and a second pressure relief pipe (6) and a first pressure relief pipe (5) are sequentially connected between the tempering cavity (16) and the tempering cavity (16) from top to bottom.

3. The steel shot tempering furnace of claim 2, wherein: and the first pressure relief pipe (5) and the second pressure relief pipe (6) are both provided with a pressure relief valve, and the pressure set value of the pressure relief valve on the second pressure relief pipe (6) is greater than that of the pressure relief valve on the first pressure relief pipe (5).

4. The steel shot tempering furnace of claim 1, wherein: unloading subassembly (7) are including mount (701), push cylinder (702), clamp plate (703), rack (704) and baffle (705), bell (2) upper surface position fixedly connected with mount (701) placed in the middle, mount (701) fixed surface installs push cylinder (702), push cylinder (702) movable end fixedly connected with clamp plate (703), bell (2) upper surface fixedly connected with rack (704), rack (704) one side fixedly connected with baffle (705).

5. The steel shot tempering furnace of claim 4, wherein: rack (704) and feed inlet (8) match the setting, feed inlet (8) is kept away from in rack (704) one side and is higher than rack (704) and be close to feed inlet (8) one side, baffle (705) fixed connection is in rack (704) and is close to feed inlet (8) one side, baffle (705) and feed inlet (8) match the setting.

6. The steel shot tempering furnace of claim 1, wherein: the slide rail (12) is spirally arranged, the slide rail (12) is matched with the furnace body (1), and the slide rail (12) is matched with the circulation hole (14).

7. The steel shot tempering furnace of claim 1, wherein: the furnace body (1) bottom is provided with the bin outlet, ejection of compact spout (9) and bin outlet match set up.