CN210220656U

CN210220656U - A energy-conserving formula high temperature exhaust gas collection device for graphite electrode processing

Info

Publication number: CN210220656U
Application number: CN201921039286.9U
Authority: CN
Inventors: Shuitian Wan; 万水田
Original assignee: Inner Mongolia Huarui Carbon Technology Co Ltd
Current assignee: Inner Mongolia Huarui Carbon Technology Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-03-31
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses an energy-conserving formula high temperature waste gas collection device for graphite electrode processing relates to graphite electrode processing technology field, including roasting the burning furnace, the upper end of roasting the burning furnace is provided with the closing cap, and the upper end one side of roasting the burning furnace installs the exhaust port, the one end of exhaust port is connected with the flue gas and burns burning furnace, the lower extreme of flue gas burning furnace is installed, the inboard be provided with, and the condenser is installed to one side of flue gas burning furnace. The honeycomb ceramic heat accumulator has low thermal expansion, large specific heat capacity and large specific surface area; the waste gas heat loss is reduced, the utilization rate of fuel is improved to the maximum extent, the air nonuniformity can be avoided due to the design of the air distribution plate, most of gas is ensured not to be mixed along the riverbed in order to form short channeling, namely, the flow resistance can be prevented from being generated due to the increase of the flow speed of some parts of the pressure drop of the bed layer, the leakage loss is reduced, and meanwhile, the phenomenon that the explosion is caused due to the fact that the reaction in the furnace is nonuniform, and the pressure can be increased is avoided.

Description

A energy-conserving formula high temperature exhaust gas collection device for graphite electrode processing

Technical Field

The utility model relates to a graphite electrode processing technology field specifically is an energy-conserving formula high temperature waste gas collection device for graphite electrode processing.

Background

The graphite electrode is regarded as one of important industrial mineral raw materials at home and abroad along with the rapid development of the world industry, particularly in recent years, the development of scientific technology, the customized graphite electrode processing technology plays an important role in various industries, the technology for processing the graphite product is gradually well done, the graphite product processing technology plays important roles of sealing, temperature resistance, corrosion resistance, electric conduction, heat preservation, pressure resistance, wear resistance, oxidation resistance and the like in a wide field, the problem of urgent need of parts of a sander is solved for the domestic wood processing industry, and the blank of domestic similar products is filled.

However, in the process of processing graphite products, the exhaust gas discharged from the roasting furnace contains asphalt tar, asphalt smoke is generated by the combustion of the asphalt tar, the asphalt smoke obstructs the breathing and sense organs of people and is harmful to the health of people, and the heat contained in the exhaust gas is lost by the traditional exhaust gas collection mode, so that the heat loss is caused. Accordingly, those skilled in the art have provided an energy-saving high-temperature exhaust gas collecting apparatus for graphite electrode processing to solve the above-mentioned problems in the background art.

Disclosure of Invention

An object of the utility model is to provide an energy-conserving formula high temperature waste gas collection device for graphite electrode processing 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: the utility model provides an energy-conserving formula high temperature waste gas collection device for processing of graphite electrode, includes and bakes burning furnace, the upper end of burning furnace is provided with the closing cap over burning furnace, and bakes burning furnace's upper end one side and installs the exhaust port, the one end of exhaust port is connected with flue gas and burns burning furnace, the support frame is installed to flue gas burning furnace's lower extreme, the inboard of support frame is provided with the waste residue mouth, and one side that flue gas burnt burning furnace installs the condenser, the cooling tower is installed to one side of condenser, install turbo generator between cooling tower and the condenser, the bottom of burning furnace is provided with the secondary air import over a slow fire, and.

As a further aspect of the present invention: the inner side of the roasting furnace is provided with a boiling layer, the inner side of the boiling layer is provided with a cooling pipe, the lower end of the boiling layer is connected with an air distribution plate, and the lower end of the sealing cover is provided with an explosion-proof plug.

As a further aspect of the present invention: the inner side of the flue gas incinerator is provided with two ceramic heat accumulators, a flue gas inner cavity is connected between the two ceramic heat accumulators, the inner side of the flue gas inner cavity is provided with a heat insulation brick, and one end of the flue gas inner cavity is connected with a heat accumulation type burner.

As a further aspect of the present invention: the air distribution plate is a circular component with a through hole, and the explosion-proof plug is a cylindrical high-temperature-resistant material component.

As a further aspect of the present invention: two ceramic heat accumulators and flue gas inner chamber through connection, the inside nozzle of forging of high temperature that is provided with of flue gas inner chamber, ceramic heat accumulators is cellular component.

As a further aspect of the present invention: the roasting furnace and the flue gas incinerator are in through connection through a pipeline, the condenser and the turbine generator are in through connection with the cooling tower, the turbine generator is electrically connected with the flue gas incinerator, and the cooling tower is externally connected with a chimney.

As a further aspect of the present invention: the roasting furnace is a stainless steel component and is externally connected with a power supply, the secondary air inlet is communicated with the roasting furnace, and the waste slag port is communicated with the flue gas incinerator.

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

1. the honeycomb ceramic heat accumulator has the characteristics of low thermal expansion, large specific heat capacity, large specific surface area, small pressure drop, small thermal resistance, good heat conduction performance, good thermal shock resistance and the like; the heat loss of the waste gas is reduced, the utilization rate of the fuel is improved to the maximum extent, and the unit energy consumption is reduced; improve combustion conditions, meet the high-temperature requirements of thermal equipment, expand the application range of low-heat-value fuel, especially the application range of blast furnace gas, improve the utilization of the heat value of the fuel, reduce atmospheric pollution and improve the environment.

2. The preferred air distribution plate and the design of the air distribution plate can avoid the non-uniformity of air, ensure that most of the air can not form short channeling along the riverbed, namely when some parts of the pressure drop of the bed layer are increased, the flow resistance can be prevented from being generated, thereby worsening the fluidization and reducing the leakage loss, and simultaneously, the phenomenon that the pressure is increased to cause explosion due to the non-uniform reaction in the furnace is also avoided.

3. According to the preferred heat accumulating type burner, asphalt and combustible carbon dust are subjected to harmless incineration treatment through high-temperature decomposition of the heat accumulating type burner, so that carbon dioxide, water and the like are formed through combustion, pollution can be reduced, heat energy can be obtained, and the obtained heat energy is recovered through a condenser and a turbine generator to generate electric energy, so that the operation of the flue gas incinerator is maintained.

Drawings

FIG. 1 is a schematic structural diagram of an energy-saving high-temperature waste gas collecting device for graphite electrode processing;

FIG. 2 is a schematic view of the internal structure of a roasting furnace in an energy-saving high-temperature waste gas collecting device for processing graphite electrodes;

fig. 3 is a schematic view of the internal structure of a flue gas incinerator in an energy-saving high-temperature waste gas collecting device for processing a graphite electrode.

In the figure: 1. roasting furnace; 2. sealing the cover; 3. a smoke outlet; 4. an air inlet; 5. a secondary air inlet; 6. a flue gas incinerator; 7. a condenser; 8. a steam turbine generator; 9. a cooling tower; 10. a waste residue port; 11. a support frame; 101. an explosion-proof plug; 102. a boiling layer; 103. a cooling tube; 104. an air distribution plate; 601. a heat insulating brick; 602. a regenerative burner; 603. a ceramic heat accumulator; 604. a flue gas cavity.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the present invention, an energy-saving high-temperature waste gas collecting device for processing graphite electrodes comprises a roasting furnace 1, a sealing cover 2 is disposed on the upper end of the roasting furnace 1, a smoke outlet 3 is disposed on one side of the upper end of the roasting furnace 1, a smoke incinerator 6 is connected to one end of the smoke outlet 3, a support frame 11 is mounted on the lower end of the smoke incinerator 6, a waste slag port 10 is disposed on the inner side of the support frame 11, a condenser 7 is mounted on one side of the smoke incinerator 6, a cooling tower 9 is mounted on one side of the condenser 7, a turbine generator 8 is mounted between the cooling tower 9 and the condenser 7, a secondary air inlet 5 is disposed at the bottom end of the roasting furnace 1, an air inlet 4 is disposed at the middle end of the roasting furnace 1, and asphalt and combustible carbon dust are subjected to harmless incineration treatment through, the pollution can be reduced, heat energy can be obtained, and the obtained heat energy is used for recovering heat generated by incineration through the condenser 7 and the turbine generator 8 to generate electric energy, so that the operation of the flue gas incinerator 6 is maintained.

The inner side of the roasting furnace 1 is provided with a boiling layer 102, the inner side of the boiling layer 102 is provided with a cooling pipe 103, the lower end of the boiling layer 102 is connected with an air distribution plate 104, the lower end of the sealing cover 2 is provided with an explosion-proof plug 101, the inner side of the flue gas incinerator 6 is provided with two ceramic heat accumulators 603, a flue gas inner cavity 604 is connected between the two ceramic heat accumulators 603, the inner side of the flue gas inner cavity 604 is provided with a heat insulation brick 601, one end of the flue gas inner cavity 604 is connected with a heat accumulating type burner 602, the air distribution plate 104 is a circular component with a through hole, the explosion-proof plug 101 is a cylindrical high-temperature resistant material component, and the honeycomb-shaped ceramic heat accumulator 603 has the characteristics of low thermal expansion, large specific heat capacity; the heat loss of the waste gas is reduced, the utilization rate of the fuel is improved to the maximum extent, and the unit energy consumption is reduced; improve combustion conditions, meet the high-temperature requirements of thermal equipment, expand the application range of low-heat-value fuel, especially the application range of blast furnace gas, improve the utilization of the heat value of the fuel, reduce atmospheric pollution and improve the environment.

The two ceramic heat accumulators 603 are communicated with the flue gas inner cavity 604, the high-temperature calcining burner is arranged in the flue gas inner cavity 604, the ceramic heat accumulators 603 are honeycomb-shaped components, the calcining furnace 1 is communicated with the flue gas incinerator 6 through a pipeline, the condenser 7 and the turbine generator 8 are communicated with the cooling tower 9, the turbine generator 8 is electrically connected with the flue gas incinerator 6, the cooling tower 9 is externally connected with a chimney, the calcining furnace 1 is a stainless steel component, the calcining furnace 1 is externally connected with a power supply, the secondary air inlet 5 is communicated with the calcining furnace 1, the waste residue port 10 is communicated with the flue gas incinerator 6, and the air distribution plate 104 is designed to avoid air nonuniformity, ensure that most of gas cannot form short channeling along a river bed, namely when some parts of pressure drop of the bed layer are increased, the flow resistance can be prevented from being generated, so that fluidization is deteriorated and, meanwhile, the phenomenon that the reaction in the roasting furnace 1 is uneven, the pressure is increased and explosion is caused is avoided.

The utility model discloses a theory of operation is: the graphite electrode reacts in the roasting furnace 1, air enters from the air inlet 4, when the reaction is in progress, air can be injected into the roasting furnace 1 through the secondary air inlet 5, the air distribution plate 104 is designed to avoid air nonuniformity and ensure that most of the air cannot form short channeling along a river bed, namely, when some parts of the pressure drop of the bed layer are increased, the flow resistance can be prevented from being generated, so that fluidization is deteriorated, the leakage loss is reduced, meanwhile, the phenomenon that the reaction in the roasting furnace 1 is nonuniform, the pressure can be increased to cause explosion is avoided, the flue gas, asphalt and combustible carbon dust generated by the reaction are discharged into the flue gas incinerator 6 from the smoke outlet 3, and the flue gas, the asphalt and the combustible carbon dust are subjected to harmless incineration treatment through high-temperature decomposition of the regenerative burner 602 to form carbon dioxide, water and the like, so that pollution can be reduced and heat energy can be, The turbine generator 8 recovers the heat generated by the incineration to generate electric energy so as to maintain the operation of the flue gas incinerator 6.

The above-mentioned, 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. An energy-saving high-temperature waste gas collecting device for processing a graphite electrode comprises a roasting furnace (1), it is characterized in that the upper end of the roasting furnace (1) is provided with a sealing cover (2), one side of the upper end of the roasting furnace (1) is provided with a smoke outlet (3), one end of the smoke outlet (3) is connected with a flue gas incinerator (6), the lower end of the flue gas incinerator (6) is provided with a support frame (11), the inner side of the support frame (11) is provided with a waste residue port (10), a condenser (7) is arranged on one side of the flue gas incinerator (6), a cooling tower (9) is arranged on one side of the condenser (7), a turbine generator (8) is arranged between the cooling tower (9) and the condenser (7), the bottom end of the roasting furnace (1) is provided with a secondary air inlet (5), and the middle end of the roasting furnace (1) is provided with an air inlet (4).

2. The energy-saving high-temperature waste gas collecting device for the graphite electrode processing is characterized in that a boiling layer (102) is arranged on the inner side of the roasting furnace (1), a cooling pipe (103) is arranged on the inner side of the boiling layer (102), an air distribution plate (104) is connected to the lower end of the boiling layer (102), and an explosion-proof plug (101) is arranged on the lower end of the sealing cover (2).

3. The energy-saving high-temperature waste gas collecting device for graphite electrode processing according to claim 1, characterized in that two ceramic heat accumulators (603) are arranged inside the flue gas incinerator (6), a flue gas inner cavity (604) is connected between the two ceramic heat accumulators (603), an insulating brick (601) is arranged inside the flue gas inner cavity (604), and a heat accumulating type burner (602) is connected to one end of the flue gas inner cavity (604).

4. The energy-saving high-temperature waste gas collecting device for the graphite electrode machining is characterized in that the air distribution plate (104) is a circular component with through holes, and the explosion-proof plug (101) is a cylindrical high-temperature resistant material component.

5. The energy-saving high-temperature waste gas collecting device for graphite electrode processing according to claim 3, wherein two ceramic heat accumulators (603) are connected with the flue gas inner cavity (604) in a penetrating manner, a high-temperature calcining burner is arranged in the flue gas inner cavity (604), and the ceramic heat accumulators (603) are honeycomb members.

6. The energy-saving high-temperature waste gas collecting device for processing the graphite electrode is characterized in that the roasting furnace (1) is communicated with the flue gas incinerator (6) through a pipeline, the condenser (7) and the turbine generator (8) are communicated with the cooling tower (9), the turbine generator (8) is electrically connected with the flue gas incinerator (6), and the cooling tower (9) is externally connected with a chimney.

7. The energy-saving high-temperature waste gas collecting device for graphite electrode processing according to claim 1, characterized in that the roasting furnace (1) is a stainless steel component, the roasting furnace (1) is externally connected with a power supply, the secondary air inlet (5) is connected with the roasting furnace (1) in a penetrating way, and the waste slag port (10) is connected with the flue gas incinerator (6) in a penetrating way.