CN210945672U - High-efficiency intermediate frequency melting furnace for waste steel auxiliary materials - Google Patents
High-efficiency intermediate frequency melting furnace for waste steel auxiliary materials Download PDFInfo
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- CN210945672U CN210945672U CN201921880237.8U CN201921880237U CN210945672U CN 210945672 U CN210945672 U CN 210945672U CN 201921880237 U CN201921880237 U CN 201921880237U CN 210945672 U CN210945672 U CN 210945672U
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- preheating
- furnace body
- pipe
- melting furnace
- frequency melting
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000002844 melting Methods 0.000 title claims abstract description 27
- 230000008018 melting Effects 0.000 title claims abstract description 27
- 239000002699 waste material Substances 0.000 title claims description 12
- 239000007789 gas Substances 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000003517 fume Substances 0.000 claims abstract description 4
- 230000002146 bilateral effect Effects 0.000 claims abstract 2
- 238000009413 insulation Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 54
- 239000003345 natural gas Substances 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000000155 melt Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 6
- 238000004321 preservation Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a scrap steel auxiliary material high efficiency intermediate frequency melts stove, the on-line screen storage device comprises a base, the fixed material loading chamber that is equipped with on the base, material loading chamber one side is equipped with the furnace body, the furnace body bottom through the support frame with base fixed connection, the furnace body top is equipped with feed hopper and the pipe of discharging fume, the fixed preheating box that is equipped with of furnace body bilateral symmetry, the furnace body below is equipped with the gas bin, gas bin both sides are all connected and are equipped with the intake pipe, the intake pipe is kept away from gas bin one end with the preheating box is connected mutually, be equipped with the preheating chamber in the preheating box, preheat the intracavity and be equipped with circular preheating tube, the circular preheating tube outside is equipped with a plurality of lateral conduit, circular preheating tube with be connected through the connecting tube between. Has the advantages that: thereby greatly improving the effect of heating natural gas, leading the natural gas to be more fully combusted, reaching the melting point of molten steel, improving the recovery rate of the steel, saving energy and protecting environment.
Description
Technical Field
The utility model relates to a melt the stove, particularly, relate to a scrap steel auxiliary material high efficiency intermediate frequency melts stove.
Background
With the development of national economy of China, equipment made of a large amount of steel gradually reaches the elimination period, and particularly, more and more scrap steel is generated in the industries of scrapped automobiles, mechanical equipment and mechanical processing. Such as various waste equipment, steel structural members, "scrapped" locomotives, vehicles, rails, automobiles, ships, tools, appliances, and the like. The annual production of scrap steel can account for 25-30% of the total production of steel in industrially developed countries. The full utilization of the scrap steel is also one of the important ways for reducing pollution and reducing the smelting amount of the steel iron ore.
The development of short-run steelmaking is a necessary trend in all developed industrial countries to make full and efficient use of scrap. However, the normal steel plant converter has limited ability of utilizing the steel scrap, and the adoption of electric steelmaking has high cost and large investment. The common coal-fired and gas-fired cupola furnace can not melt the scrap steel but only melt the iron. Since the melting point of iron is only 1230 c and the melting point of steel 1520 c. However, in the melting process of the melting furnace, the temperature of the melting furnace in the initial stage is low, so that the natural gas is heated too slowly and cannot be fully combusted, and the melting point of the natural gas cannot be reached.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a scrap steel auxiliary material high efficiency intermediate frequency melts stove to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-efficiency medium-frequency melting furnace for waste steel accessories comprises a base, wherein a feeding cavity is fixedly arranged on the base, a furnace body is arranged on one side of the feeding cavity, the bottom of the furnace body is fixedly connected with the base through a support frame, a feeding funnel and a smoke exhaust pipe are arranged at the top of the furnace body, preheating boxes are symmetrically and fixedly arranged on two sides of the furnace body, a gas storage box is arranged below the furnace body, gas inlet pipes are respectively connected with two sides of the gas storage box, one ends of the gas inlet pipes, far away from the gas storage box, are connected with the preheating boxes, a preheating cavity is arranged in the preheating box, a circular preheating pipe is arranged in the preheating cavity, a plurality of branch pipelines are arranged on the outer side of the circular preheating pipe, the circular preheating pipe is connected with the branch pipelines through connecting pipelines, an electric heating plate is fixedly arranged on, one end of the air injection pipe, which is far away from the preheating box body, penetrates through the furnace body and extends into the furnace body to be connected with a gas nozzle, and a discharge hole is formed in the bottom of the furnace body.
Furthermore, an inlet and an outlet are respectively formed in two sides of the feeding cavity, and a material guide plate is arranged between the outlet and the feeding hopper.
Furthermore, a motor is fixedly arranged in the feeding cavity, and the output end of the motor is connected with the material conveying screw rod.
Furthermore, the air inlet pipe and the air injection pipe are both provided with a first valve.
Furthermore, a second valve is arranged on the discharge hole.
Furthermore, a filter screen is arranged at the top of the smoke exhaust pipe.
Furthermore, a heat insulation layer is arranged in the furnace body.
Furthermore, the interior of the preheating box body is filled with heat preservation cotton.
The utility model provides a scrap steel auxiliary material high efficiency intermediate frequency melting furnace, beneficial effect as follows:
(1) firstly, the scrap steel auxiliary material is automatically fed through the feeding cavity, the scrap steel auxiliary material reaches the furnace body through the feeding funnel and is heated and melted, the preheating box bodies are symmetrically and fixedly arranged on two sides of the furnace body, cold natural gas enters the circular preheating pipe through the air inlet pipe and then enters the branch pipes through the connecting pipes, so that the heating area of the natural gas is greatly increased, the preheating efficiency of the flowing natural gas is increased by many times compared with that of the existing single preheating pipe in the same time, the natural gas preheating effect is improved, the natural gas is heated to the temperature required to be preheated at one time, and finally the natural gas enters the melting furnace for combustion through the gas injection pipe and the gas nozzle, so that the natural gas heating effect is greatly improved, the natural gas is combusted more fully, and the melting point of molten steel is reached, the recovery rate of steel is improved, and the method is energy-saving and environment-friendly.
(2) The material guide plate has the advantages that the material guide plate is provided with the inlet and the outlet, the material is fed and discharged, and the material guide plate plays a guiding role. During the material loading, through being equipped with motor work, drive defeated material hob and rotate, carry out automatic feeding, improved work efficiency. The inlet and outlet of gas and liquid are controlled by arranging a first valve and a second valve. Through being equipped with the filter screen to can filter waste gas, prevent that waste gas from directly discharging, influence external environment. The heat insulation layer and the heat insulation cotton are arranged, so that a good heat insulation effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a high-efficiency medium-frequency melting furnace for scrap auxiliary materials according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a preheating box body in the high-efficiency medium-frequency melting furnace for scrap steel accessories according to the embodiment of the utility model;
figure 3 is according to the utility model discloses a section view of preheating the box in steel scrap auxiliary material high efficiency intermediate frequency melting furnace.
Reference numerals:
1. a base; 2. a feeding cavity; 3. a furnace body; 4. a support frame; 5. a feed hopper; 6. preheating the box body; 7. a gas storage tank; 8. a smoke exhaust pipe; 9. an air inlet pipe; 10. a circular preheating pipe; 11. a branch pipe; 12. connecting a pipeline; 13. a gas ejector tube; 14. an electrical heating plate; 15. a motor; 16. a material conveying screw rod; 17. and a gas nozzle.
Detailed Description
The following, with reference to the drawings and the detailed description, further description of the present invention is made:
the first embodiment is as follows:
referring to fig. 1-3, a high-efficiency intermediate frequency melting furnace for waste steel auxiliary materials according to an embodiment of the present invention includes a base 1, a feeding cavity 2 is fixedly disposed on the base 1, a furnace body 3 is disposed on one side of the feeding cavity 2, the bottom of the furnace body 3 is fixedly connected to the base 1 through a support frame 4, a feeding funnel 5 and a smoke exhaust pipe 8 are disposed on the top of the furnace body 3, preheating boxes 6 are symmetrically disposed on both sides of the furnace body 3, a gas storage box 7 is disposed below the furnace body 3, gas inlet pipes 9 are connected to both sides of the gas storage box 7, one end of the gas inlet pipe 9 away from the gas storage box 7 is connected to the preheating boxes 6, a preheating cavity is disposed in the preheating box 6, a circular preheating pipe 10 is disposed in the preheating cavity, a plurality of branch pipes 11 are disposed outside the circular preheating pipe 10, the circular preheating pipe 10 is connected to the branch pipes 11 through a, the preheating device is characterized in that an electric heating plate 14 is fixedly arranged on the inner wall of the preheating cavity, an air injection pipe 13 is connected to the top of the preheating box body 6, one end of the air injection pipe 13, which is far away from the preheating box body 6, penetrates through the furnace body 3 and extends into the furnace body 3 to be connected with a gas nozzle 17, a discharge hole is formed in the bottom of the furnace body 3, firstly, waste steel auxiliary materials are automatically fed through a feeding cavity 2, the waste steel auxiliary materials reach the furnace body 3 through a feeding funnel 5 to be heated and melted, the preheating box bodies 6 are symmetrically and fixedly arranged on two sides of the furnace body 3, cold natural gas enters a circular preheating pipe 10 through an air inlet pipe 9 and then enters a plurality of branch pipelines 11 through connecting pipelines 12, so that the heating area of the natural gas is greatly increased, and in the same time, the preheating efficiency of the flowing natural gas is improved by many times compared with, thereby the effect that the natural gas preheated has been improved, accomplishes to once only heating the temperature to needs preheating with the natural gas, finally through jet-propelled pipe and gas nozzle 17, enters into and melts the burning in the stove to improve the effect of natural gas heating greatly, makeed the natural gas burning more abundant, reach the melting point that the steel melted, improved the rate of recovery of steel, energy-concerving and environment-protective.
Example two:
referring to fig. 1-3, for the feeding cavity 2, an inlet and an outlet are respectively formed at two sides of the feeding cavity 2, a material guiding plate is arranged between the outlet and the feeding hopper 5, and the material guiding plate plays a role in guiding by being provided with the inlet and the outlet to perform feeding and discharging. For the feeding cavity 2, a motor 15 is fixedly arranged in the feeding cavity 2, the output end of the motor 15 is connected with a material conveying screw rod 16, and when the feeding cavity is used for feeding, the motor 15 is arranged to work to drive the material conveying screw rod 16 to rotate so as to perform automatic feeding, so that the working efficiency is improved. For the gas inlet pipe 9, a first valve is arranged on each of the gas inlet pipe 9 and the gas injection pipe 13. For the discharge port, a second valve is arranged on the discharge port, and the inlet and outlet of gas and liquid are controlled by the first valve and the second valve. To the pipe 8 of discharging fume, 8 top installations of pipe of discharging fume are equipped with the filter screen, through being equipped with the filter screen to can filter waste gas, prevent that waste gas from directly discharging, influencing external environment. For the furnace body 3, a heat insulation layer is arranged in the furnace body 3. For the preheating box body 6, the inside of the preheating box body 6 is filled with heat preservation cotton, and a good heat preservation effect is achieved by arranging the heat preservation layer and the heat preservation cotton.
For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process
In practical application, firstly, the feeding cavity 2 is arranged to automatically feed the scrap steel auxiliary material, the scrap steel auxiliary material reaches the furnace body 3 through the feeding hopper 5 to be heated and melted, the preheating box bodies 6 are symmetrically and fixedly arranged on two sides of the furnace body 3, cold natural gas enters the circular preheating pipes 10 through the air inlet pipe 9 and then enters the branch pipes 11 through the connecting pipes 12, so that the heating area of the natural gas is greatly increased, in the same time, the preheating efficiency of the flowing natural gas is increased by many times compared with that of the existing single preheating pipe, the preheating effect of the natural gas is improved, the natural gas is heated to the temperature needing to be preheated at one time, and finally, the natural gas enters the melting furnace to be combusted through the gas injection pipe and the gas nozzle 17, the heating effect of the natural gas is greatly improved, and the combustion of the natural gas is more sufficient, the melting point of molten steel is achieved, the recovery rate of steel is improved, and the method is energy-saving and environment-friendly. The material guide plate has the advantages that the material guide plate is provided with the inlet and the outlet, the material is fed and discharged, and the material guide plate plays a guiding role. During feeding, the motor 15 is arranged to work, the material conveying screw rod 16 is driven to rotate, automatic feeding is carried out, and the working efficiency is improved. The inlet and outlet of gas and liquid are controlled by arranging a first valve and a second valve. Through being equipped with the filter screen to can filter waste gas, prevent that waste gas from directly discharging, influence external environment. The heat insulation layer and the heat insulation cotton are arranged, so that a good heat insulation effect is achieved.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a scrap steel auxiliary material high efficiency intermediate frequency melting furnace, its characterized in that, includes base (1), fixed material loading chamber (2) that is equipped with on base (1), material loading chamber (2) one side is equipped with furnace body (3), furnace body (3) bottom through support frame (4) with base (1) fixed connection, furnace body (3) top is equipped with feed hopper (5) and the pipe (8) of discharging fume, furnace body (3) bilateral symmetry is fixed and is equipped with preheating box (6), furnace body (3) below is equipped with gas bin (7), gas bin (7) both sides all are connected and are equipped with intake pipe (9), intake pipe (9) are kept away from gas bin (7) one end with preheating box (6) are connected, be equipped with preheating chamber in preheating box (6), be equipped with circular preheating tube (10) in the preheating chamber, circular preheating tube (10) outside is equipped with a plurality of lateral conduit (11), circular preheating tube (10) with be connected through connecting tube (12) between lateral conduit (11), preheat intracavity wall and fix and be equipped with electric heating board (14), it is equipped with jet-propelled pipe (13) to connect at preheating box (6) top, jet-propelled pipe (13) are kept away from preheat box (6) one end run through in furnace body (3) and extend to be connected with gas nozzle (17) in furnace body (3), furnace body (3) bottom is equipped with the discharge gate.
2. The high-efficiency medium-frequency melting furnace for waste steel auxiliary materials as claimed in claim 1, wherein an inlet and an outlet are respectively formed at two sides of the feeding cavity (2), and a material guide plate is arranged between the outlet and the feeding hopper.
3. The high-efficiency medium-frequency melting furnace for auxiliary materials of scrap steel according to claim 2, wherein a motor (15) is fixedly arranged in the feeding cavity (2), and an output end of the motor (15) is connected with a material conveying screw rod (16).
4. The high-efficiency medium-frequency melting furnace for auxiliary materials of steel scraps as claimed in claim 3, wherein the air inlet pipe (9) and the air injection pipe (13) are respectively provided with a first valve.
5. The high-efficiency medium-frequency melting furnace for waste steel auxiliary materials as claimed in claim 4, wherein a second valve is arranged on the discharge port.
6. The high-efficiency medium-frequency melting furnace for waste steel auxiliary materials as claimed in claim 5, wherein a filter screen is arranged at the top of the smoke exhaust pipe (8).
7. The high-efficiency medium-frequency melting furnace for waste steel auxiliary materials as claimed in claim 6, wherein an insulating layer is arranged in the furnace body (3).
8. The high-efficiency medium-frequency melting furnace for waste steel auxiliary materials as claimed in claim 7, wherein the preheating tank body (6) is filled with heat insulation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880237.8U CN210945672U (en) | 2019-11-01 | 2019-11-01 | High-efficiency intermediate frequency melting furnace for waste steel auxiliary materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880237.8U CN210945672U (en) | 2019-11-01 | 2019-11-01 | High-efficiency intermediate frequency melting furnace for waste steel auxiliary materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210945672U true CN210945672U (en) | 2020-07-07 |
Family
ID=71378151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921880237.8U Expired - Fee Related CN210945672U (en) | 2019-11-01 | 2019-11-01 | High-efficiency intermediate frequency melting furnace for waste steel auxiliary materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210945672U (en) |
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2019
- 2019-11-01 CN CN201921880237.8U patent/CN210945672U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 |