CN212560375U

CN212560375U - Car-type heat treatment furnace

Info

Publication number: CN212560375U
Application number: CN202021200269.1U
Authority: CN
Inventors: 余贤针
Original assignee: Hangzhou Bangtailihe Industrial Furnace Co ltd
Current assignee: Hangzhou Bangtailihe Industrial Furnace Co ltd
Priority date: 2020-06-25
Filing date: 2020-06-25
Publication date: 2021-02-19
Anticipated expiration: 2030-06-25

Abstract

The utility model discloses a car-type heat treatment furnace, including the furnace shaft, all trompil is equipped with a plurality of fixed orificess on the face of furnace shaft front and back both sides, and a fixed orificess inside all is fixed with No. two and spouts the burner, and No. two spouts first one end inside the furnace shaft, and No. two spouts the connection of the burner other end and is equipped with No. three fuel pipes, No. three fuel pipe top connections are equipped with No. two fuel pipes, No. two fuel pipe one end is connected on No. three fuel pipes. The utility model discloses, during the use, the inside of rack is put into to the metal object that will quench, impels the inside of stack with the rack, and the gas union coupling that will supply on the gas equipment simultaneously is in gas source department, and a plurality of a number of flame throwers at stack top and No. two flame throwers on stack both sides wall when heating light spun gas and make the inside rapid heating of stack, and the air-blower carries air oxygen inside the stack through the air feed groove to the inside metal object of stack carries out abundant heating burning when making the quenching.

Description

Car-type heat treatment furnace

Technical Field

The utility model relates to a heat treatment furnace, in particular to a trolley type heat treatment furnace.

Background

The heat treatment furnace is an electric furnace or a fuel furnace for heating and heat-treating a charge. Commonly used heat treatment furnaces include a box-type resistance furnace, a pit-type resistance furnace, a gas carburizing furnace, a salt bath furnace, and the like. Typically, a continuous furnace is used, with workpieces being continuously loaded from a loading door, through a hearth, and continuously unloaded from a discharge door. A common in-furnace transfer method is to load a workpiece on a heat-resistant steel rail and transfer the workpiece by a walking beam or a pusher. In recent years, a heat-resistant steel conveyor belt has been used for transportation. In this way, the heat treatment operation is more rationalized, greatly increasing the possibility of automation and unattended management of the heat treatment process. However, only two sides of the interior of the car-type heat treatment furnace are provided with the heating nozzles, so that the heating is slow when the car-type heat treatment furnace is used, the heating process is too long, the excessive waste of fuel gas is caused, and when the heat treatment furnace is closed during cooling, the residual hot air in the interior can be kept for a long time and cannot be dispersed, so that the cooling speed of the heat treatment furnace is too slow. Therefore, the utility model provides a car-type heat treatment furnace to solve the problems in the background art.

Disclosure of Invention

An object of the utility model is to provide a car-type heat treatment furnace to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a trolley type heat treatment furnace comprises a furnace body, wherein a plurality of first fixing holes are formed in the front side face and the rear side face of the furnace body, a second fuel spray nozzle is fixed inside each first fixing hole, one end of the second fuel spray nozzle is arranged inside the furnace body, the other end of the second fuel spray nozzle is connected with a third fuel pipe, the top of the third fuel pipe is connected with a second fuel pipe, one end of the second fuel pipe is connected with the third fuel pipe, the other end of the second fuel pipe is connected with a first fuel pipe, the middle of the second fuel pipe is fixed with a fourth fuel pipe, the bottom of the fourth fuel pipe is fixed with a first fuel spray nozzle, the bottom of the first fuel pipe is provided with a fixing seat, one end of the first fuel pipe is closed, the other end of the first fuel pipe is connected with a gas supply device, and one side of the gas supply device is connected with a gas pipe;

an air supply groove is formed in the inner portion of the front side wall of the furnace body, the air supply groove is connected with a first air pipe, one end of the first air pipe is fixedly connected to the air supply groove, the other end of the first air pipe is connected with an air supply pipe, and the bottom of the air supply pipe is connected with a blower;

the inside fluting of the back lateral wall of stack is equipped with the air discharge duct, connects on the air discharge duct and is equipped with No. two tuber pipes, and No. two tuber pipe one end fixed connection are on the air discharge duct, and No. two tuber pipe other ends are connected and are equipped with the air feed pipe, and the air feed pipe bottom is connected and is equipped with the exhaust fan.

As a further proposal of the utility model, twenty of the second number of flame-spraying heads are ten and are one row, two rows inside the fixed orifices of the second number of flame-spraying heads fixed on the front and back side surfaces of the furnace body respectively.

As the utility model discloses scheme further again, No. two fire the pipe and be two rows totally twenty, No. two fire fixed No. four fire the pipe on the pipe and spout every ten of first burning and be one row and be the symmetry and fix inside the shaft of a furnace.

As a further proposal of the utility model, the first fuel pipe is fixed at the middle part of the top end of the furnace body through the fixed seat.

As the utility model discloses further scheme again, No. one the tuber pipe is connected on the air-blower through supplying the tuber pipe, and air-blower one side is connected and is equipped with the induced duct.

As the utility model discloses further scheme again, No. two tuber pipes pass through the air feed pipe and connect on the exhaust fan, and exhaust fan one side is connected and is equipped with the exhaust pipe.

As a further aspect of the present invention, the air supply pipe is two, one of the air supply pipes is fixed on the exhaust fan, and the other air supply pipe is fixed on the blower.

As the utility model discloses further scheme again, the inside bottom fluting of shaft is equipped with the rail groove, is equipped with the rack on the rail groove, and shaft one side top is equipped with the closing plate.

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

1. during the use, the inside of rack is put into to the metal object that will quench, impel the inside of stack with the rack, put down the closing plate on the stack again, induced duct on the exhaust pipe on the exhaust fan and the air-blower passes through personnel to be connected in the open air, the gas union coupling that will supply on the gas equipment simultaneously is in gas source department, a plurality of a number of at stack top during the heating spouts the fuel head and No. two on the stack both sides wall, ignite spun gas and make the inside rapid heating of stack, the air-blower passes through the air feed groove and carries inside the stack with air oxygen, thereby the metal object of stack inside carries out abundant heating burning when making the quenching.

2. When exhausting, when closing heat treatment furnace because the metal quenches the back, the inside hot-air of shaft is too many and lead to inside cooling too slowly, when heat treatment furnace closes, air-blower and exhaust fan are opened simultaneously to the accessible controller, make the inside exhaust stack of one side of shaft with the inside quick discharge of hot-air of shaft in the exhaust stack, and the inside of shaft is advanced with outdoor air discharge to the air feed groove of the inside opposite side of shaft, thereby alleviate the inside temperature of shaft, thereby make quick cooling that advances after heat treatment furnace closes reach refrigerated effect.

Drawings

FIG. 1 is a schematic view of a structure of a car-type heat treatment furnace.

FIG. 2 is a schematic top view of a heat treatment furnace of a car type.

FIG. 3 is a schematic structural view of a first burner in a car-type heat treatment furnace.

In the figure: 1. a furnace body; 2. a rail groove; 3. placing a rack; 4. a first fixing hole; 5. a third fuel pipe; 6. a first fuel pipe; 7. a second fuel pipe; 8. a fourth fuel pipe; 9. a first air pipe; 10. an exhaust groove; 11. an exhaust fan; 12. a second air pipe; 13. a gas supply facility; 14. a blower; 15. an air supply pipe; 16. a wind supply groove; 17. an exhaust duct; 18. an induced draft pipe; 19. a gas pipe; 20. a sealing plate; 21. a fixed seat; 22. a first jet burner; 23. and a second spray burner.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, in an embodiment of the present invention, a car-type heat treatment furnace comprises a furnace body 1, a plurality of first fixing holes 4 are formed on the front and rear side surfaces of the furnace body 1, a second flame spray head 23 is fixed inside the first fixing holes 4, one end of the second flame spray head 23 is inside the furnace body 1, the other end of the second flame spray head 23 is connected with a third flame pipe 5, the top of the third flame pipe 5 is connected with a second flame pipe 7, twenty second flame spray heads 23 are ten in total and are one row, and two rows of the second flame spray heads 23 are respectively fixed inside the first fixing holes 4 on the front and rear side surfaces of the furnace body 1. No. two fire 7 one ends of pipe are connected on No. three fire 5, and No. two fire 7 other ends are connected and are equipped with a fire 6, and No. two fire 7 middle parts are fixed with No. four fire 8, and No. four fire 8 bottoms are fixed with one and spout the burner 22, and No. two fire 7 is two rows totally twenty, and No. two fire No. 7 go up fixed No. four fire 8 and spout the burner 22 every ten be one row and be the symmetry and fix inside furnace body 1. A fixing base 21 is arranged at the bottom of the first fuel pipe 6, and the first fuel pipe 6 is fixed in the middle of the top end of the furnace body 1 through the fixing base 21. One end of the first fuel pipe 6 is closed, the other end of the first fuel pipe 6 is connected with a gas supply device 13, and one side of the gas supply device 13 is connected with a gas pipe 19.

The inside fluting of preceding lateral wall of stack 1 is equipped with air feed groove 16, and air feed groove 16 connects and is equipped with an tuber pipe 9, and No. one tuber pipe 9 one end fixed connection is on air feed groove 16, and No. one tuber pipe 9 other end is connected and is equipped with air feed pipe 15, and air feed pipe 15 bottom is connected and is equipped with air-blower 14, and No. one tuber pipe 9 passes through air feed pipe 15 to be connected on air-blower 14, and air-blower 14 one side is connected and is equipped with induced duct 18.

Inside fluting of the back lateral wall of stack 1 is equipped with air discharge duct 10, connects on the air discharge duct 10 and is equipped with No. two tuber pipes 12, and No. two tuber pipes 12 one end fixed connection is on air discharge duct 10, and No. two tuber pipes 12 other end connection are equipped with air feed pipe 15, and air feed pipe 15 bottom is connected and is equipped with exhaust fan 11, and No. two tuber pipes 12 pass through air feed pipe 15 and connect on exhaust fan 11, and exhaust fan 11 one side is connected and is equipped with exhaust pipe 17, and air feed pipe 15 is two, its 15 one of air feed pipe is fixed on exhaust fan 11, just air feed pipe 15, another is fixed on air-blower 14, and the inside bottom fluting of stack 1 is equipped with rail groove 2, is equipped with rack 3 on the rail groove 2, and.

The utility model discloses a theory of operation is:

the device is integrally controlled by an external controller;

when the quenching furnace is used, a metal object to be quenched is placed in the placing rack 3, the placing rack 3 is pushed into the furnace body 1, the sealing plate 20 on the furnace body 1 is put down, the exhaust pipe 17 on the exhaust fan 11 and the induced draft pipe 18 on the air blower 14 are connected outdoors through personnel, the gas pipe 19 on the gas supply device 13 is connected to a gas source, a plurality of first flame spray nozzles 22 on the top of the furnace body 1 and second flame spray nozzles 23 on two side walls of the furnace body 1 are used for igniting the sprayed gas to quickly heat the interior of the furnace body 1, and the air blower 14 conveys air oxygen to the interior of the furnace body 1 through the air supply groove 16, so that the metal object in the furnace body 1 is sufficiently heated and combusted during quenching;

when exhausting, when closing heat treatment furnace because the metal quenches the back, the inside hot-air of stack 1 is too many and leads to inside cooling too slowly, when heat treatment furnace closes, air-blower 14 and exhaust fan 11 are opened simultaneously to the accessible controller, make the inside exhaust duct 10 of one side of stack 1 with the inside quick exhaust of hot-air of stack 1 in the exhaust pipe 17, and the inside of stack 1 is arranged into with outdoor air to the inside of air feed groove 16 of the inside opposite side of stack 1, thereby alleviate the inside temperature of stack 1, thereby make the heat treatment furnace close the back quick cooling that advances reach refrigerated effect.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A trolley type heat treatment furnace comprises a furnace body (1) and is characterized in that a plurality of first fixing holes (4) are formed in the front side face and the rear side face of the furnace body (1), second flame spraying heads (23) are fixed inside the first fixing holes (4), one ends of the second flame spraying heads (23) are arranged inside the furnace body (1), the other ends of the second flame spraying heads (23) are connected with third flame tubes (5), the tops of the third flame tubes (5) are connected with second flame tubes (7), one ends of the second flame tubes (7) are connected to the third flame tubes (5), the other ends of the second flame tubes (7) are connected with first flame tubes (6), the middle portions of the second flame tubes (7) are fixed with fourth flame tubes (8), the bottoms of the fourth flame tubes (8) are fixed with first flame spraying heads (22), fixing seats (21) are arranged at the bottoms of the first flame tubes (6), one ends of the first flame tubes (6) are closed, the other end of the first fuel pipe (6) is connected with a fuel gas supply device (13), and one side of the fuel gas supply device (13) is connected with a fuel gas pipe (19);

an air supply groove (16) is formed in the inner portion of the front side wall of the furnace body (1), the air supply groove (16) is connected with a first air pipe (9), one end of the first air pipe (9) is fixedly connected to the air supply groove (16), the other end of the first air pipe (9) is connected with an air supply pipe (15), and the bottom of the air supply pipe (15) is connected with a blower (14);

the inside fluting of the back lateral wall of stack (1) is equipped with air discharge duct (10), connects on air discharge duct (10) and is equipped with No. two tuber pipes (12), No. two tuber pipes (12) one end fixed connection on air discharge duct (10), No. two tuber pipes (12) other end connection are equipped with air feed pipe (15), and air feed pipe (15) bottom connection is equipped with exhaust fan (11).

2. The car-type heat treatment furnace according to claim 1, wherein twenty of the second flame injection heads (23) are arranged in one row, and two rows of the second flame injection heads (23) are respectively fixed in the first fixing holes (4) on the front and rear side surfaces of the furnace body (1).

3. The car-type heat treatment furnace according to claim 1, wherein the second burner (7) is formed in two rows of twenty, and the fourth burner (8) and the first burner (22) fixed to the second burner (7) are symmetrically fixed to the inside of the furnace shell (1) in one row.

4. The car-type heat treatment furnace according to claim 1, wherein the first burner pipe (6) is fixed to the middle of the top end of the furnace shell (1) through a fixing seat (21).

5. The car type heat treatment furnace according to claim 1, wherein the first blast pipe (9) is connected to a blower (14) through a blast supply pipe (15), and a draft pipe (18) is connected to one side of the blower (14).

6. The car-type heat treatment furnace according to claim 1, wherein the second air duct (12) is connected to the exhaust fan (11) through an air supply duct (15), and an exhaust duct (17) is connected to one side of the exhaust fan (11).

7. The car type heat treatment furnace according to claim 1, wherein the number of the air supply ducts (15) is two, and one of the air supply ducts (15) is fixed to the exhaust fan (11) and the other air supply duct (15) is fixed to the blower (14).

8. The car-type heat treatment furnace according to claim 1, wherein a rail groove (2) is formed in the bottom end of the inside of the furnace body (1), the rail groove (2) is provided with the placing frame (3), and the top of one side of the furnace body (1) is provided with the sealing plate (20).