CN217929839U

CN217929839U - High-efficient environmental protection's carborundum smelting furnace

Info

Publication number: CN217929839U
Application number: CN202221989472.0U
Authority: CN
Inventors: 孙金雷; 许建军
Original assignee: Lianyungang Yuhua Mineral Product Co ltd
Current assignee: Lianyungang Yuhua Mineral Product Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-29
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses a carborundum smelting furnace of high-efficient environmental protection belongs to carborundum and smelts the field, including a resistance furnace, an electrostatic precipitator, a exhaust-heat boiler and a turbine. The high-efficiency environment-friendly silicon carbide smelting furnace preliminarily adsorbs and collects the smoke dust particles in the furnace gas by arranging the electric dust remover and the ash bucket; the filter layer and the activated carbon contained in the filter layer are adsorbed before the furnace gas is finally discharged, so that air pollution is further avoided; the high-temperature high-pressure steam generated by the water tank drives the fan blades to do work in a rotating manner through the steam pipe, then the high-temperature high-pressure steam drives the power generation module of the steam turbine to generate power and transmit the power to the resistance furnace for use as supplementary electric power, the waste heat of the furnace gas is recycled and fully utilized to heat the steam to generate the power, secondary utilization is realized, a large amount of heat energy resources are avoided being generated during high-temperature smelting, electric power is additionally supplemented, electric power resources are saved, and smelting cost is reduced.

Description

High-efficient environmental protection's carborundum smelting furnace

Technical Field

The utility model belongs to carborundum smelting field, concretely relates to carborundum smelting furnace of high-efficient environmental protection.

Background

The silicon carbide has stable chemical properties, high heat conductivity coefficient, small thermal expansion coefficient and good wear resistance, and is widely applied to the fields of functional ceramics, high-grade refractory materials, grinding materials, metallurgical raw materials and the like, and the smelting production process, technical equipment and single-ton energy consumption of the silicon carbide in China reach the world leading level.

The silicon carbide is obtained through high-temperature smelting, furnace gas is generated at high temperature in the smelting process, the furnace gas not only contains a large amount of smoke and dust, but also has huge heat, the serious air pollution is caused, and the energy waste problem also exists. Therefore, an improvement of the silicon carbide smelting furnace with high efficiency and environmental protection is provided.

SUMMERY OF THE UTILITY MODEL

To the above defect of prior art or improve in the demand one or more, the utility model provides a carborundum smelting furnace of high-efficient environmental protection has waste heat recovery, reutilization's advantage.

In order to achieve the purpose, the utility model provides a high-efficiency environment-friendly silicon carbide smelting furnace, which comprises a resistance furnace, an electric dust remover, a waste heat boiler and a steam turbine, wherein an inner cavity of the resistance furnace is used for accommodating silicon carbide smelting raw materials and heating at high temperature; the lower end surface of the electric dust collector is integrally provided with a plurality of ash hoppers, and the electric dust collector finishes the removal of the smoke dust by adsorbing the smoke dust contained in the furnace gas into the ash hoppers; the waste heat boiler is provided with a water tank, and the waste heat boiler heats water in the water tank by using the waste heat of the furnace gas to generate steam and drives the steam turbine to do work and generate power so as to be recycled.

As a further improvement of the utility model, the pipeline at the top end of the resistance furnace is connected with a furnace gas pipe, and the other end of the furnace gas pipe is connected with the electric dust remover in a pipeline way; the electric dust collector is provided with a cavity, smoke dust in furnace gas is positively charged when the furnace gas passes through the cavity, and a bottom plate of the cavity of the electric dust collector is negatively charged and is communicated with the ash bucket.

As a further improvement, the electrostatic precipitator is kept away from the tracheal other end of stove has a gas-supply pipe, the gas-supply pipe other end with exhaust-heat boiler keeps the pipe connection, exhaust-heat boiler is inside to have a water tank, the water tank up end can open and shut be equipped with a water inlet, the water tank with it establishes to the heating chamber to have the gap between the exhaust-heat boiler, the heating chamber supplies the burner gas to encircle the water tank utilizes the waste heat to heat water in the water tank produces vapor, water tank top outer wall pipe connection has a steam pipe.

As a further improvement of the utility model, the top of the heating cavity is also provided with an annular filter layer, and the filter layer contains active carbon.

As a further improvement of the utility model, the steam pipe runs through exhaust-heat boiler table wall and continue to extend with the steam turbine keeps the pipe connection, the inside flabellum and the power module of having of steam turbine, the vapor drive of steam intraductal transmission the flabellum rotates and passes through the power module power generation that the steam turbine has, the steam turbine still be equipped with a power transmission line with resistance furnace keeps to circuit connection.

Generally, through the utility model above technical scheme who conceives compares with prior art, the beneficial effect who has includes:

the high-efficiency environment-friendly silicon carbide smelting furnace preliminarily adsorbs and collects the smoke dust particles in the furnace gas by arranging the electric dust remover and the ash bucket, thereby avoiding influencing the emission of polluted air and heating; the heating cavity and the water tank are arranged, so that furnace gas can surround the water tank to heat water in the water tank to generate steam; the filter layer and the activated carbon contained in the filter layer are adsorbed before the furnace gas is finally discharged, so that air pollution is further avoided; high-temperature high-pressure steam generated by the water tank drives the fan blades to do work through the steam pipe, then the power generation module of the steam turbine is driven to generate power and transmit the power to the resistance furnace for use as supplementary electric power, the waste heat of the furnace gas is recycled and fully utilized to heat the steam to generate the power, secondary utilization is realized, a large amount of heat energy resources are avoided being generated during high-temperature smelting, electric power is additionally supplemented, electric power resources are saved, and smelting cost is reduced.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic rear view of the present invention;

FIG. 4 is a schematic side view of the cross-sectional structure of the present invention;

fig. 5 is the structure schematic diagram of the waste heat boiler of the utility model.

In all the figures, the same reference numerals denote the same features, in particular: 1. a resistance furnace; 11. a furnace gas pipe; 2. an electric dust collector; 21. an ash hopper; 22. a gas delivery pipe; 3. a waste heat boiler; 31. a water tank; 32. a water inlet; 33. a vapor tube; 34. a heating cavity; 35. a filter layer; 4. a steam turbine; 41. a fan blade; 42. and (4) a power transmission line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Examples

As shown in the figures 1-5, the high-efficiency environment-friendly silicon carbide smelting furnace comprises a resistance furnace 1, an electric dust remover 2, a waste heat boiler 3 and a steam turbine 4, wherein a cavity in the resistance furnace 1 is used for accommodating silicon carbide smelting raw materials and heating the silicon carbide smelting raw materials at a high temperature; the lower end surface of the electric dust collector 2 is integrally provided with a plurality of ash hoppers 21, and the electric dust collector 2 finishes the removal of the smoke dust by adsorbing the smoke dust contained in the furnace gas into the ash hoppers 21; the exhaust-heat boiler 3 is provided with a water tank 31, and the exhaust-heat boiler 3 heats water in the water tank 31 by using the waste heat of the furnace gas to generate steam and drives the steam turbine 4 to do work and generate power for recycling.

In the embodiment, the dust collector 2 and the ash bucket 21 are arranged to primarily adsorb and collect the smoke particles in the furnace gas, so that the pollution air emission and heating are prevented from being influenced; the heating cavity 34 and the water tank 31 are arranged, so that furnace gas can surround the water tank 31 to heat water in the water tank 31 to generate steam; the filter layer 35 and the activated carbon contained in the filter layer 35 are adsorbed before the furnace gas is finally discharged, so that air pollution is further avoided; the high-temperature and high-pressure steam generated by the water tank 31 drives the fan blades 41 to rotate and apply work through the steam pipe 33, and further drives the power generation module of the steam turbine 4 to generate power and transmit the power to the resistance furnace 1 to be used as supplementary power.

Specifically, referring to fig. 1-3, a furnace gas pipe 11 is connected to the top end of the resistance furnace 1 through a pipeline, and the other end of the furnace gas pipe 11 is connected with the electric dust collector 2 through a pipeline; the electric dust collector 2 is provided with a cavity, smoke dust in the furnace gas is positively charged when the furnace gas passes through, and a bottom plate of the cavity of the electric dust collector 2 is negatively charged and is communicated with the ash bucket 21.

In the embodiment, the furnace gas pipe 11 is arranged to keep the pipeline connection between the resistance furnace 1 and the electric dust remover 2, so that furnace gas generated in the smelting process of the resistance furnace 1 enters the electric dust remover 2 through the furnace gas pipe 11; by arranging the electric dust collector 2, smoke in the furnace gas is positively charged when the furnace gas passes through, the negative charges of the bottom plate of the electric dust collector 2 are matched to generate an adsorption effect on the smoke in the furnace gas, and the smoke falls into the ash bucket 21 by matching with the dead weight of the smoke to complete the smoke removal in the furnace gas.

Specifically, referring to fig. 1-5, the other end of the electric precipitator 2, which is far away from the furnace gas pipe 11, is provided with a gas pipe 22, the other end of the gas pipe 22 is in pipe connection with the waste heat boiler 3, a water tank 31 is arranged inside the waste heat boiler 3, a water inlet 32 is arranged on the upper end face of the water tank 31 in an openable and closable manner, a gap is arranged between the water tank 31 and the waste heat boiler 3 and is set as a heating cavity 34, the heating cavity 34 is used for allowing furnace gas to surround the water tank 31 and heating water in the water tank 31 by using waste heat to generate steam, and a steam pipe 33 is connected to the outer wall pipe at the top end of the water tank 31.

In this embodiment, the gas pipe 22 is arranged to allow the furnace gas to enter the heating cavity 34 and surround the water tank 31, and the water in the water tank 31 is heated by the waste heat of the furnace gas to generate steam, and is continuously transmitted through the steam pipe 33.

Specifically, referring to fig. 5, the top of the heating cavity 34 is further provided with an annular filter layer 35, and the filter layer 35 contains activated carbon.

In this embodiment, by providing the filter layer 35 containing activated carbon, the particles contained in the furnace gas are continuously adsorbed when the furnace gas rises, and then the exhaust is completed after the filtration by the filter layer 35, thereby avoiding air pollution.

Specifically, referring to fig. 1 to 4, the steam pipe 33 penetrates through the surface wall of the exhaust-heat boiler 3 and continues to extend to be in pipeline connection with the steam turbine 4, a fan blade 41 and a power generation module are arranged inside the steam turbine 4, the fan blade 41 is driven by the steam transmitted in the steam pipe 33 to rotate and generate power through the power generation module arranged in the steam turbine 4, and the steam turbine 4 is further provided with a power transmission line 42 which is in circuit connection with the electric resistance furnace 1.

In this embodiment, the steam pipe 33 is provided to allow high-temperature and high-pressure steam generated by heating the water tank 31 to be transmitted into the steam turbine 4 and apply work to the driving fan 41, and the steam is used in cooperation with a power generation module provided in the steam turbine 4 to generate power and transmitted to the electric resistance furnace 1 through the power transmission line 42 to supplement the power.

The working principle is as follows:

the utility model discloses a high-efficient environmental protection carborundum smelting furnace, during the use through stove trachea 11 with resistance furnace 1 high-temperature furnace gas transmission to electrostatic precipitator 2 in that produces when smelting, and make the smoke and dust in the furnace gas take positive charge when the furnace gas passes through electrostatic precipitator 2, the negative charge that cooperates the bottom plate of electrostatic precipitator 2 to have produces the adsorption effect to the smoke and dust in the furnace gas, cooperate the dead weight of smoke and dust to make it drop to ash bucket 21 and accomplish the smoke and dust in the furnace gas and clear away; furnace gas enters a heating cavity 34 between the waste heat boiler 3 and the water tank 31 through the gas conveying pipe 22 and surrounds the water tank 31, water in the waste heat boiler 3 is heated by using the waste heat of the furnace gas to generate steam, meanwhile, the furnace gas after heat dissipation is subjected to particle adsorption again through the filter layer 35 and active carbon contained in the filter layer 35, and then the furnace gas is exhausted to the atmosphere through the filter layer 35 in a clock-following manner, so that air pollution is avoided; at this time, high-temperature and high-pressure steam generated after heating in the water tank 31 enters the steam turbine 4 together with the steam pipe 33, the fan blades 41 drive the steam turbine to rotate to apply work, the fan blades are matched with a power generation module of the steam turbine 4 to generate power, and the power is transmitted to the resistance furnace 1 through the power transmission line 42 to supplement the power, so that the effects of recovering and secondarily utilizing waste heat of furnace gas are finally 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

1. A high-efficiency environment-friendly silicon carbide smelting furnace is characterized by comprising

The device comprises a resistance furnace (1), an electric dust remover (2), a waste heat boiler (3) and a turbine (4), wherein a cavity in the resistance furnace (1) is used for accommodating silicon carbide smelting raw materials and heating the silicon carbide smelting raw materials at high temperature; a plurality of ash hoppers (21) are integrally arranged on the lower end face of the electric dust collector (2), and the electric dust collector (2) absorbs the smoke dust contained in the furnace gas into the ash hoppers (21) to complete smoke dust removal; the waste heat boiler (3) is provided with a water tank (31), and the waste heat boiler (3) heats water in the water tank (31) by using the waste heat of the furnace gas to generate steam and drives the steam turbine (4) to do work and generate power so as to be recycled.

2. A high-efficiency environment-friendly silicon carbide smelting furnace as claimed in claim 1, characterized in that the top end of the resistance furnace (1) is connected with a furnace gas pipe (11) by a pipeline, and the other end of the furnace gas pipe (11) is connected with the electric dust collector (2) by a pipeline; the electric dust collector (2) is provided with a cavity and enables smoke dust in the furnace gas to be positively charged when the furnace gas passes through, and a cavity bottom plate of the electric dust collector (2) is negatively charged and is in through connection with the ash bucket (21).

3. The silicon carbide smelting furnace of high-efficient environmental protection according to claim 2, characterized in that, keep away from electrostatic precipitator (2) the other end of furnace trachea (11) has an air-supply pipe (22), the air-supply pipe (22) other end with exhaust-heat boiler (3) keep the pipe connection, exhaust-heat boiler (3) inside has a water tank (31), water tank (31) up end can open and shut be equipped with a water inlet (32), water tank (31) with it establishes to heating chamber (34) to have the gap between exhaust-heat boiler (3), heating chamber (34) supply the burner gas to encircle water tank (31) and utilize the waste heat heating aquatic product raw steam in water tank (31), water tank (31) top outer wall pipe connection has a steam pipe (33).

4. A furnace as claimed in claim 3, wherein the heating chamber (34) is further provided with an annular filter layer (35) at the top, and the filter layer (35) contains activated carbon.

5. A furnace as claimed in claim 3, wherein the steam pipe (33) extends through the surface wall of the waste heat boiler (3) and continues to be connected with the steam turbine (4) by pipeline, the steam turbine (4) is internally provided with a fan blade (41) and a power generation module, the steam transmitted in the steam pipe (33) drives the fan blade (41) to rotate and generates power through the power generation module of the steam turbine (4), and the steam turbine (4) is also provided with a power transmission line (42) to be connected with the electric resistance furnace (1) in a pair circuit.