CN217473171U

CN217473171U - Electric furnace for treating automobile exhaust purification catalyst carrier

Info

Publication number: CN217473171U
Application number: CN202220896469.8U
Authority: CN
Inventors: 肖令华; 田海平; 肖进岭; 董如杰
Original assignee: Luoyang Tairui Intelligent Electric Furnace Co ltd
Current assignee: Luoyang Tairui Intelligent Electric Furnace Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-09-23
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses an electric furnace for treating automobile exhaust purification catalyst carrier, which relates to the technical field of electric furnace equipment and comprises a furnace body, a furnace chamber is arranged in the furnace body, a loading platform is arranged at the bottom in the furnace chamber, an exhaust port is arranged at the position corresponding to the loading platform at the top of the furnace chamber, a fan is arranged at the position of the exhaust port, an air inlet is arranged at the position corresponding to the loading platform at the bottom of the furnace chamber, an air inlet duct, a circulating duct and an exhaust duct are also arranged on the furnace body, a heater is arranged in the circulating duct, one end of the circulating duct is connected with the outlet end of the fan, one end of the lower part of the circulating duct is connected with the air inlet at the bottom of the furnace chamber, the air inlet duct is communicated with the air inlet, the exhaust duct is connected with the air outlet end of the fan, valves are arranged on the air inlet duct, the circulating duct and the exhaust duct, compared with the traditional furnace chamber heating treatment exhaust carrier, the technology is converted into hot air convection heating mode by heat radiation, the heating time is shortened from 4-5 hours to 40-50 minutes, greatly saves time cost and electric energy, and the product after final treatment has better performance.

Description

Electric furnace for treating automobile exhaust purification catalyst carrier

Technical Field

The utility model belongs to the technical field of the electric stove, more specifically say, in particular to an electric stove for handling automobile exhaust purifies catalyst carrier.

Background

At present, a carrier of a tail gas purification catalyst of a diesel engine automobile on the market is commonly used as a honeycomb carrier, and the honeycomb carrier has the advantages of small gas resistance, smooth and uniform atmosphere, high mechanical strength, good thermal stability, thin catalytic active coating, large specific surface area and the like. However, the voids in the honeycomb carrier are easy to form carbon deposition after long-term use, so that the honeycomb voids are blocked, the carrier cannot work normally, and the purification effect is reduced. If the carrier is replaced again, the cost is about 1 ten thousand pieces of money, and in order to save the cost, the carrier is mostly reprocessed for reuse. The original method for treating the carbon deposit blockage honeycomb gaps in the market is to use a traditional electric furnace for heating, and the technical defects are that the inner space of a hearth is large, the temperature of the hearth is slowly raised, the heat radiation is used for completely burning the carbon deposit in the gaps for 4-5 hours, the burnt carbon deposit becomes powder and can be continuously remained in the honeycomb gaps, the gaps cannot be thoroughly removed, an additional tool is used for blowing and sweeping when the carbon deposit is completely removed, the process is complex, and the environment is polluted.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an electric stove for handling automobile exhaust purification catalyst carrier, solves the problems that the tail gas purification catalyst carrier processing procedure is complicated and the environment is polluted in the prior art, compared with the tail gas carrier heated and processed by the traditional hearth, the technology converts heat radiation into a hot air convection heating mode, the heating time is shortened to 40-50 minutes from 4-5 hours, the time cost is greatly saved, the electric energy is also saved, and the product performance after final processing is better.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an electric stove for handling automobile exhaust purifies catalyst carrier, includes the furnace body, be provided with furnace in the furnace body, the bottom is provided with the objective table in the furnace, the furnace top corresponds the objective table position and is provided with the gas vent, the gas vent position is provided with the fan, the furnace bottom corresponds the objective table position and is provided with the air inlet, still be provided with air intake duct, circulation wind channel, exhaust wind channel on the furnace body, be provided with the heater in the circulation wind channel, the exit end of fan is connected to circulation wind channel one end, and the air inlet position of furnace bottom is connected to lower part one end, air intake duct is linked together with the air inlet, exhaust wind channel links to each other with the air-out end of fan, all be provided with the valve that is used for controlling each wind channel break-make on air intake duct, circulation wind channel, the exhaust wind channel.

In order to further optimize the utility model discloses, can prefer following technical scheme for use:

preferably, the furnace body is further provided with a temperature measuring module, the temperature measuring module comprises a first thermocouple arranged in the hearth, a second thermocouple arranged at an air inlet at the lower part of the circulating air duct and a third thermocouple arranged at an air outlet at the upper part of the circulating air duct, and the back of the furnace body is further provided with a display used for displaying temperature measuring values of the first thermocouple, the second thermocouple and the third thermocouple.

Preferably, the object stage is designed in a bowl-shaped circular ring structure.

Preferably, the inner wall of the hearth is provided with a metal plate, and small holes for preventing deformation caused by heating are uniformly distributed in the metal plate.

Preferably, the circulating air duct comprises a vertical pipeline part, and a top horizontal pipeline and a bottom horizontal pipeline which are arranged at the upper end and the lower end of the vertical pipeline, and the heater comprises a first heating pipe arranged in the vertical pipeline part and a second heating pipe arranged in the bottom horizontal pipeline.

Preferably, the air inlet duct, the circulating duct and the exhaust duct are integrally welded to form a pipeline, the air inlet duct is connected with the bottom of the circulating duct, the exhaust duct is connected with the top of the circulating duct, and the air outlet end of the exhaust duct is connected with a dust remover.

Preferably, the air inlet duct, the circulating duct and the exhaust duct are coated with heat insulating layers.

Preferably, the fan is further equipped with a heat radiation fan for radiating heat of the fan.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

1. the scheme carries out repair treatment on the tail gas purification catalyst carrier, compared with a replacement carrier, the cost is greatly saved by recycling the carrier, in addition, the equipment is used for carrying out treatment, compared with the traditional hearth heating treatment, the technology converts heat radiation into a hot air convection heating mode, the heating time is shortened to 40-50 minutes from 4-5 hours, the time cost is greatly saved, the electric energy is also saved, the final treatment result is higher in usability, and the performance is better.

2. The objective table is bowl form ring structural design in this scheme, and the objective table material is the 316 steel sheet, is convenient for stabilize shelve the honeycomb carrier of common all kinds of cylindric four, five, six standards in the state on the existing market, and objective table lower part lug connection wind channel is convenient for hot-blast direct action on honeycomb carrier. In the scheme, the fan plays two roles of blowing and inducing air, and the fan is provided with a small electric fan so as to avoid damage caused by high-speed operation and direct contact with hot air.

3. In the scheme, three thermocouples are arranged on a furnace body, one thermocouple is arranged in a hearth to measure the temperature in the hearth, and a display is arranged at the back of an electric furnace; the second air inlet is arranged at the lower part of the air channel and used for measuring the air inlet temperature, the third air inlet is arranged at the upper part of the air channel and used for measuring the temperature of finally discharged air, and the air inlet channel, the circulating air channel and the exhaust air channel are provided with valves for controlling the on-off of each air channel, so that the on-off of the air channels can be flexibly switched according to the processing steps.

Drawings

FIG. 1 is a front view of an electric fire;

FIG. 2 is a top view of the electric furnace;

FIG. 3 is a schematic view of the internal structure of the electric furnace;

fig. 4 is an enlarged schematic view of the structure at a.

The system comprises a furnace body 1, a furnace chamber 2, a furnace door 3, a metal plate 4, a fan 5, an exhaust port 6, a circulating air duct 7, an air inlet air duct 8, an objective table 9, an exhaust air duct 10, an air inlet 11, a heating pipe II 12, a heating pipe I13, a control valve I14, a control valve II 15, a control valve III 16, a thermocouple II 17, a thermocouple I18, a thermocouple III 19, a thermocouple III 20, small holes 21, a grid 22 and a display screen.

Detailed Description

In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the attached drawings of the specification and specific embodiments.

Example 1:

as shown in fig. 1-4, an electric furnace for treating a catalyst carrier for purifying automobile exhaust comprises a furnace body 1, a furnace chamber 2 is designed in the furnace body 1, a furnace door 3 is hinged on the furnace body, metal plates 4 are arranged on the furnace chamber and the inner wall of the furnace door for improving heat conduction efficiency, and small holes 20 for preventing deformation caused by heating are uniformly distributed on the metal plates 4; wherein the objective table is installed to the bottom in the furnace, and wherein there is grid 21 objective table 9 bottom, and the objective table is bowl form ring structure design in this scheme, and objective table 9 material is the 316 steel sheet, is convenient for stabilize and shelves the honeycomb carrier of common all kinds of cylindric four, five, six standards in the state in the current market, and objective table lower part lug connection wind channel is convenient for hot-blast direct action on honeycomb carrier. Furnace top corresponds the objective table position and installs gas vent 6, and furnace bottom corresponds the objective table position and installs air inlet 11, and fan 5 is installed to the gas vent position, and fan plays two effects of blast air and induced air in this scheme, and the fan still is equipped with in addition and is used for the radiating radiator fan of fan to damage because of high-speed operation and direct contact are hot-blast, and the fan adopts the boiler fan, and the model is: YN 5-47.

The furnace body is also provided with an air inlet duct, a circulating duct and an air exhaust duct, a heater is arranged in the circulating duct 7, the circulating duct comprises a vertical pipeline part, a top horizontal pipeline and a bottom horizontal pipeline, the top horizontal pipeline and the bottom horizontal pipeline are arranged at the upper end and the lower end of the vertical pipeline, and the heater comprises a first heating pipe 13 arranged in the vertical pipeline part and a second heating pipe 12 arranged in the bottom horizontal pipeline; one end of the circulating air duct is connected with the outlet end of the fan, one end of the lower portion of the circulating air duct is connected with the air inlet position at the bottom of the hearth, the air inlet air duct is communicated with the air inlet, the exhaust air duct 10 is connected with the air outlet end of the fan, and the exhaust air duct, the air inlet air duct 8 and the circulating air duct 7 are respectively provided with a first control valve 14, a second control valve 15 and a third control valve 16 which are used for controlling the on-off of each air duct, so that the switching of the subsequent processes is facilitated.

Furthermore, the furnace body is also provided with a temperature measuring module, the temperature measuring module comprises a first thermocouple 18 which is arranged in the furnace cavity and used for measuring the temperature in the furnace cavity, a second thermocouple 17 which is arranged at the air inlet at the lower part of the circulating air duct and used for measuring the temperature of the inlet air and a third thermocouple 19 which is arranged at the air outlet at the upper part of the circulating air duct and used for measuring the temperature of the finally discharged gas, the back part of the furnace body is also provided with a display screen for displaying the temperature measuring values of the first thermocouple, the second thermocouple and the third thermocouple, the first thermocouple, the second thermocouple and the third thermocouple are all connected with a control system, the display screen 22 is also connected with the control system, the model is WZP-230, the temperature value of 0-1000 ℃ can be measured, in order to reduce the manufacturing and installation cost, the inlet air duct, the circulating air duct and the exhaust air duct are integrally welded into a pipeline, and the inlet air duct is connected with the bottom part of the circulating air duct, the exhaust air duct is connected with the top of the circulating air duct, and the air outlet end of the exhaust air duct is connected with a dust remover.

Furthermore, in order to reduce heat loss, the air inlet duct, the circulating duct and the exhaust duct are coated with heat insulating layers.

The working process of the equipment is as follows:

firstly, confirming the states of valves at each position, closing control valves at an air inlet and an air outlet, and opening a middle valve of an air duct; secondly, starting the fan; thirdly, electrifying and heating 2 heating pipes; blowing hot air into the hearth by a fan, and directly acting on the honeycomb carrier, wherein the temperature of the gas is stabilized at about 800 ℃; carbon deposition in the carrier is slowly oxidized and burned into powder under the action of high-temperature hot air; sixthly, after 40-50 minutes, adjusting the temperature to 400 ℃, opening the upper exhaust position control valve and the lower air inlet position control valve, and closing the air channel middle control valve, so that the temperature inside the furnace hearth can be quickly reduced. The hot air blows out the carbon deposition which is changed into powder while continuing to heat the carrier, and the carbon deposition is discharged from the air outlet. And a dust removing and purifying device is arranged outside the air outlet.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides an electric stove for handling automobile exhaust purifies catalyst carrier, includes the furnace body, its characterized in that: the improved air-conditioning furnace is characterized in that a furnace chamber is arranged in the furnace body, an object stage is arranged at the bottom in the furnace chamber, an air outlet is formed in the top of the furnace chamber corresponding to the object stage, a fan is arranged at the air outlet, an air inlet is formed in the bottom of the furnace chamber corresponding to the object stage, an air inlet duct, a circulating air duct and an exhaust air duct are further arranged on the furnace body, a heater is arranged in the circulating air duct, one end of the circulating air duct is connected with the outlet end of the fan, one end of the lower portion of the circulating air duct is connected with the air inlet position of the bottom of the furnace chamber, the air inlet duct is communicated with the air inlet, the exhaust air duct is connected with the air outlet end of the fan, and valves for controlling the on-off of the air inlet duct, the circulating air duct and the exhaust air duct are arranged on the air inlet duct.

2. The electric furnace for treating a carrier of a catalyst for purifying automobile exhaust gas according to claim 1, wherein: the furnace body is also provided with a temperature measuring module, the temperature measuring module comprises a first thermocouple arranged in the hearth, a second thermocouple arranged at an air inlet at the lower part of the circulating air duct and a third thermocouple arranged at an air outlet at the upper part of the circulating air duct, and the back part of the furnace body is also provided with a display used for displaying temperature measuring values of the first thermocouple, the second thermocouple and the third thermocouple.

3. The electric furnace for treating a carrier of a catalyst for purifying automobile exhaust gas according to claim 1, wherein: the objective table is designed into a bowl-shaped circular ring structure.

4. An electric furnace for treating a carrier for an automotive exhaust gas purifying catalyst according to claim 1, characterized in that: the furnace is characterized in that a metal plate is arranged on the inner wall of the furnace, and small holes which are prevented from deforming when heated are uniformly distributed in the metal plate.

5. The electric furnace for treating a carrier of a catalyst for purifying automobile exhaust gas according to claim 1, wherein: the circulating air duct comprises a vertical pipeline part, a top horizontal pipeline and a bottom horizontal pipeline, wherein the top horizontal pipeline and the bottom horizontal pipeline are arranged at the upper end and the lower end of the vertical pipeline, and the heater comprises a first heating pipe arranged in the vertical pipeline part and a second heating pipe arranged in the bottom horizontal pipeline.

6. An electric furnace for treating a carrier for an automotive exhaust gas purifying catalyst according to claim 1, characterized in that: the air inlet duct, the circulating duct and the exhaust duct are integrally welded to form a pipeline, the air inlet duct is connected with the bottom of the circulating duct, the exhaust duct is connected with the top of the circulating duct, and the air outlet end of the exhaust duct is connected with a dust remover.

7. The electric furnace for treating a carrier of a catalyst for purifying automobile exhaust gas according to claim 1, wherein: and the air inlet duct, the circulating duct and the exhaust duct are coated with heat-insulating layers.

8. An electric furnace for treating a carrier for an automotive exhaust gas purifying catalyst according to claim 1, characterized in that: the fan is also provided with a heat radiation fan for radiating heat of the fan.