CN213421882U

CN213421882U - Energy-saving heat accumulating type combustion device

Info

Publication number: CN213421882U
Application number: CN202022250192.5U
Authority: CN
Inventors: 梁舫; 杨红涛; 崔时伟
Original assignee: Shaanxi Daqin Aluminum Co ltd
Current assignee: Shaanxi Daqin Aluminum Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-11
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses an energy-saving heat accumulating type combustion device, which comprises a top flue of a smelting furnace, a heat accumulating box, an air inlet pipeline and an air outlet flue; the top flue of the smelting furnace is not less than three, the top of the top flue is respectively connected with an inlet at the bottom of a heat storage box, heat storage balls are arranged in the heat storage box, the rear side of the heat storage box is communicated with one end of an air inlet branch pipe, the other end of the air inlet branch pipe is connected with an air inlet pipeline, one end of the air inlet pipeline is closed, and the other end of the air inlet pipeline is connected with an air outlet of an air blower; the top of heat accumulation case and the one end intercommunication of air-out branch pipe, and the other end of air-out branch pipe connects the air-out flue, the air outlet of air-out flue and the air intake connection of draught fan. When heat in the smelting furnace is dissipated by the flue and passes through the heat storage box, the heat is absorbed and surrounded layer by the heat storage balls in the heat storage box, heat radiation is carried out, the heat radiation enters the smelting furnace again, natural gas is saved, production cost is reduced, and yield is improved.

Description

Energy-saving heat accumulating type combustion device

Technical Field

The utility model relates to an aluminium founding technical field for heat energy is collected and is recycled, specifically is energy-saving heat accumulation formula burner.

Background

The early smelting furnace is directly connected with an external dust removal smoke pipe, a large amount of heat in the smelting furnace is absorbed through a flue during the dust removal starting period, so that the heat in the smelting furnace is seriously dissipated, the smelting efficiency is reduced, the aluminum melting time is prolonged, the burning loss is increased, and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide energy-saving heat accumulation formula burner, when the smelting furnace heat gives off borrows when passing through the heat accumulation case by the flue, the heat is absorbed layer upon layer by the heat accumulation ball in the heat accumulation incasement and is surrounded, and the heat radiation makes use of again and gets into the smelting furnace, has practiced thrift the natural gas, and reduction in production cost has improved output, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the energy-saving heat accumulating type combustion device comprises a top flue of a smelting furnace, a heat accumulating box, an air inlet pipeline and an air outlet flue;

the top flue of the smelting furnace is not less than three, the top of the top flue is respectively connected with an inlet at the bottom of a heat storage box, heat storage balls are arranged in the heat storage box, the rear side of the heat storage box is communicated with one end of an air inlet branch pipe, the other end of the air inlet branch pipe is connected with an air inlet pipeline, one end of the air inlet pipeline is closed, and the other end of the air inlet pipeline is connected with an air outlet of an air blower;

the top of the heat storage box is communicated with one end of the air outlet branch pipe, the other end of the air outlet branch pipe is connected with an air outlet flue, and an air outlet of the air outlet flue is connected with an air inlet of the induced draft fan;

wherein, the diameter of heat accumulation ball is 20mm, and the heat accumulation ball that fills in the heat accumulation case accounts for two-thirds of heat accumulation incasement volume, the input of draught fan and air-blower is connected through external control ware and external power source's output electricity.

The air-blower blast air loops through air-supply line and air inlet branch pipe and enters into the heat accumulation case, and the draught fan induced air is taken out heat accumulation incasement air through air-out flue and air-out branch pipe to draught fan power is greater than the air-blower, makes the interior negative pressure that forms of heat accumulation case, takes out the hot smoke and dust of smelting furnace top flue through the air-out flue, and when the heat gived off in the smelting furnace and passed through the heat accumulation case by the flue, the heat was absorbed by the heat accumulation ball in the heat accumulation incasement and is surrounded layer by layer.

The heat storage device is characterized by further comprising a blocking net, wherein a metal blocking net is arranged at an inlet at the bottom of the heat storage box, and meshes of the blocking net are smaller than the diameter of the heat storage ball. The blocking net needs to be made of metal materials with high melting points, so that melting caused by high heat is avoided, and the blocking net can prevent the heat storage box from leaking into a top flue of the smelting furnace from a bottom inlet of the heat storage box.

Further, still include the baffle, the air inlet branch pipe is located the rear side upper portion position of heat accumulation case, and heat accumulation incasement portion rear side is located air inlet branch pipe tip downside position and is equipped with the baffle, the baffle extends towards the slope of front side top. The baffle can block the air current that air inlet branch pipe got into the heat accumulation case and enter into smelting furnace top flue, can be favorable to the orderly discharge of high temperature smoke and dust in the heat accumulation case.

Furthermore, the heat storage box also comprises a fixed rod, and the two ends of the front side of the baffle are connected with the rear side of the interior of the heat storage box through the fixed rod. The dead lever can be consolidated by the baffle, is favorable to the baffle to keep stable under the air current disturbance in the heat accumulation case.

Compared with the prior art, the beneficial effects of the utility model are that: this energy-saving heat accumulation formula burner has following benefit:

1. through heat recovery, the energy-saving heat accumulating type smelting furnace needs 10 hours of material melting for 30 tons of materials in one furnace originally, the time for material melting is 4 hours after improvement, and the production efficiency is improved.

2. When heat in the smelting furnace is dissipated by the flue and passes through the heat storage box, the heat is absorbed and surrounded layer by the heat storage balls in the heat storage box, heat radiation is carried out, the heat radiation enters the smelting furnace again, natural gas is saved, production cost is reduced, and yield is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention.

In the figure: 1 smelting furnace top flue, 2 heat storage boxes, 3 air inlet pipelines, 4 blocking nets, 5 heat storage balls, 6 air outlet branch pipes, 7 air outlet flues, 8 induced draft fans, 9 baffles, 10 air blowers, 11 air inlet branch pipes and 12 fixing rods.

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.

Referring to fig. 1-2, the present embodiment provides a technical solution: the energy-saving heat accumulating type combustion device comprises a smelting furnace top flue 1, a heat accumulating box 2, an air inlet pipeline 3 and an air outlet flue 7;

at least three top flues 1 of the smelting furnace are arranged, the tops of the flues are respectively connected with the bottom inlets of the heat storage boxes 2, heat storage balls 5 are arranged in the heat storage boxes 2, the rear sides of the heat storage boxes 2 are communicated with one ends of the air inlet branch pipes 11, the other ends of the air inlet branch pipes 11 are connected with the air inlet pipeline 3, one end of the air inlet pipeline 3 is closed, and the other end of the air inlet pipeline 3 is connected with the air outlet of;

the top of the heat storage box 2 is communicated with one end of an air outlet branch pipe 6, the other end of the air outlet branch pipe 6 is connected with an air outlet flue 7, and an air outlet of the air outlet flue 7 is connected with an air inlet of an induced draft fan 8;

wherein, the diameter of heat accumulation ball 5 is 20mm, and the heat accumulation ball 5 that fills in heat accumulation case 2 accounts for two-thirds of the volume in the heat accumulation case 2, and the input of draught fan 8 and air-blower 10 is connected with external power source's output electricity through external control ware.

Air-blower 10 blast air loops through air-supply line 3 and air inlet branch pipe 11 and enters into

heat accumulation case

2, 8 induced drafts of draught fan take out heat accumulation case 2 air through air-out flue 7 and air-out

branch pipe

6, and 8 power of draught fan are greater than air-blower 10, make and form the negative pressure in the heat accumulation case 2, take out the hot smoke and dust of smelting furnace top flue 1 through air-out flue 7, when the heat gives off in the smelting furnace and passes through the heat accumulation case by the flue, the heat is absorbed layer upon layer by the heat accumulation ball in the heat accumulation case and is encircleed, reuse the.

The heat storage device is characterized by further comprising a barrier net 4, a metal barrier net 4 is arranged at an inlet at the bottom of the heat storage box 2, and meshes of the barrier net 4 are smaller than the diameter of the heat storage balls 5. The blocking net 4 needs to be made of metal with high melting point, so that melting caused by high heat is avoided, and the blocking net 4 can prevent the heat storage balls 5 from leaking into the top flue 1 of the smelting furnace from the bottom inlet of the heat storage box 2.

Still include baffle 9, air inlet branch pipe 11 is located the rear side upper portion position of heat accumulation case 2, and heat accumulation case 2 inside rear side is located 11 tip downside positions of air inlet branch pipe and is equipped with baffle 9, and baffle 9 extends towards the slope of front side top. The baffle 9 can prevent the airflow entering the heat storage box 2 from the air inlet branch pipe 11 from entering the top flue 1 of the smelting furnace, and can be beneficial to orderly discharging of high-temperature smoke dust in the heat storage box 2. The heat storage box further comprises fixing rods 12, and the two ends of the front side of the baffle plate 9 are connected with the rear side of the interior of the heat storage box 2 through the fixing rods 12. The fixing rods 12 can be reinforced by the baffle 9, which is beneficial to keeping the baffle 9 stable under the disturbance of the air flow in the heat storage box 2.

When in use: energy-saving heat accumulation formula smelting furnace is in smelting furnace top flue department welding with three heat accumulation case, heat accumulation box length 2000mm, wide 1000mm, high 1100mm, heat accumulation incasement fills the heat accumulation ball of heat accumulation case volume two-thirds, heat accumulation ball diameter 20mm, when the heat gives off in the smelting furnace and passes through the heat accumulation case by the flue, the heat is absorbed by the heat accumulation ball in the heat accumulation case layer upon layer and is surrounded, recycles the heat and gets into the smelting furnace.

The defects of the prior art are improved as follows:

firstly, an energy-saving heat accumulating type smelting furnace needs to be melted for 10 hours by heat recovery, the melting time is 4 hours after improvement, and the production efficiency is improved;

secondly, dust particles are reduced and directly discharged through a flue, so that the environment is protected;

and thirdly, the natural gas is saved, the production cost is reduced, and the yield is improved.

It should be noted that the heat storage ball 5 disclosed in this embodiment is made of AL2O3, kaolin, synthetic aggregate, mullite crystal, etc., the external controller may be a siemens PLC controller, the types of the induced draft fan 8 and the air blower 10 may be freely configured by an implementer according to actual conditions, and the external controller controls the induced draft fan 8 and the air blower 10 to work by a method commonly used in the prior art, and other parts of the present invention that are not detailed are conventional technologies known to those skilled in the art.

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

1. Energy-saving heat accumulation formula burner, its characterized in that: comprises a top flue (1) of a smelting furnace, a heat storage box (2), an air inlet pipeline (3) and an air outlet flue (7);

the smelting furnace is characterized in that at least three top flues (1) are arranged, the tops of the flues are respectively connected with inlets at the bottoms of heat storage boxes (2), heat storage balls (5) are arranged in the heat storage boxes (2), the rear sides of the heat storage boxes (2) are communicated with one ends of air inlet branch pipes (11), the other ends of the air inlet branch pipes (11) are connected with an air inlet pipeline (3), one end of the air inlet pipeline (3) is closed, and the other end of the air inlet pipeline is connected with an air outlet of an air blower (10);

the top of the heat storage box (2) is communicated with one end of an air outlet branch pipe (6), the other end of the air outlet branch pipe (6) is connected with an air outlet flue (7), and an air outlet of the air outlet flue (7) is connected with an air inlet of an induced draft fan (8);

wherein, the diameter of heat accumulation ball (5) is 20mm, and heat accumulation ball (5) that heat accumulation case (2) intussuseption was filled account for two-thirds of heat accumulation case (2) internal volume, the input of draught fan (8) and air-blower (10) is passed through external control ware and is connected with external power source's output electricity.

2. An energy-saving heat accumulating type combustion device according to claim 1, wherein: the heat storage device is characterized by further comprising a blocking net (4), wherein a blocking net (4) made of metal is arranged at an inlet at the bottom of the heat storage box (2), and meshes of the blocking net (4) are smaller than the diameter of the heat storage ball (5).

3. An energy-saving heat accumulating type combustion device according to claim 1, wherein: still include baffle (9), air inlet branch pipe (11) are located the rear side upper portion position of heat accumulation case (2), and heat accumulation case (2) inside rear side is located air inlet branch pipe (11) tip downside position and is equipped with baffle (9), baffle (9) extend towards the slope of front side top.

4. An energy-saving heat accumulating type combustion device according to claim 3, wherein: the heat storage box is characterized by further comprising fixing rods (12), and the two ends of the front side of the baffle (9) are connected with the rear side of the interior of the heat storage box (2) through the fixing rods (12).