Tail gas emission device for flat wire baking furnace of enamelling machine

Abstract

The utility model belongs to the technical field of enameled wire production lines, and discloses a tail gas emission device for a flat wire baking furnace of an enameling machine, which is used on the enameling machine, the enameling machine is provided with a baking device, the baking device is provided with the tail gas emission device, and the tail gas emission device comprises a heat cyclic utilization mechanism which is arranged at the positions of a corrugated furnace tube and an inlet flow guide tube. The hot air circulation hearth is arranged at the joint of the corrugated furnace tube and the inlet flow guide tube; the circulating fan is communicated with the hot air circulating hearth; the circulating pipeline is communicated with the circulating fan; the reaction cavity is arranged on the circulation pipeline, and a precious metal catalysis assembly is arranged in the reaction cavity; the reaction cavity is communicated with the corrugated furnace tube; the heat exchange mechanism comprises a first exchange pipe and a second exchange pipe which are communicated with the furnace mouth heat exchange pipe; the fan is communicated with the first exchange pipe and the second exchange pipe; and the fan communicates with a waste gas purification mechanism. The tail gas purification device is simple in structure, reasonable in design and convenient to purify tail gas.

Description

Technical Field

[0001] The utility model belongs to the technical field of enameled wire production lines, and particularly relates to an exhaust gas emission device for a flat wire baking furnace of an enameling machine. Background Technique

[0002] The drive motor of new energy vehicles adopts extra-thick film rectangular enameled wire, which can effectively reduce the winding resistance and thus reduce the copper loss. It has higher efficiency, higher power density, better heat dissipation, better NVH performance, (less noise) smaller volume and weight, and is more in line with the development trend of lightweight and integration of new energy vehicles. The demand in the new energy vehicle industry has shown an explosive growth.

[0003] Our company has developed an enameling machine, which in turn includes a unwinding device, a wire drawing device, a rolling device, a flat wire drawing device, a water cleaning device, a bare wire softening device, a painting device, a baking device and a rapid cooling zone device along the working direction. Among them, the exhaust gas emission in the baking device includes two contents, namely the recycling of exhaust gas and the purified emission of the recycled exhaust gas.

[0004] However, the current exhaust gas is only directly emitted without purification treatment, which will cause a certain degree of environmental pollution and does not conform to the current national conditions.

[0005] In addition, in the existing recycling of exhaust gas, the noble metal catalytic components are fixedly installed. After being used for a period of time, maintenance or replacement will be carried out, but the operation time is long, the process is complex, and it is very inconvenient to use. Content of the Utility Model

[0006] In order to solve the problems in the related technologies, the utility model provides an exhaust gas emission device for a flat wire baking furnace of an enameling machine, which solves the problems mentioned in the background technique.

[0007] The technical solution of this application is as follows:

[0008] Tail gas emission device for flat wire baking furnace of enameling machine, which is used on the enameling machine. The enameling machine successively includes a pay-off device, a wire drawing device, a rolling device, a flat wire drawing device, a water cleaning device, a bare wire softening device, a painting device, a baking device and a rapid cooling zone device along the working direction. There is a baking furnace on the baking device, and an inlet guide pipe, a corrugated furnace pipe and a furnace mouth heat exchange pipe are successively connected in the baking furnace. It is characterized in that a tail gas emission device is installed on the baking device. The tail gas emission device includes: a heat recycling mechanism installed at the positions of the corrugated furnace pipe and the inlet guide pipe, including a hot air circulation furnace chamber arranged at the connection of the corrugated furnace pipe and the inlet guide pipe; a circulation fan communicated with the hot air circulation furnace chamber; a circulation pipeline communicated with the circulation fan; a reaction cavity arranged at one end of the circulation pipeline, and a precious metal catalytic component is arranged in the reaction cavity; the reaction cavity is communicated with the end of the corrugated furnace pipe through a pipeline; a heat exchange mechanism arranged on the furnace mouth heat exchange pipe, including a first exchange pipe and a second exchange pipe connected to the furnace mouth heat exchange pipe; a fan simultaneously connecting the adjacent ends of the first exchange pipe and the second exchange pipe; the fan is communicated with an external discharge pipeline, and the external discharge pipeline is communicated with an exhaust gas purification mechanism.

[0009] Further, an opening is provided on the reaction cavity, and a cover plate is installed on the opening.

[0010] Further, the precious metal catalytic component includes an upper mounting seat and a lower mounting seat corresponding to the air inlet direction of the circulation pipeline; the upper mounting seat is located above, the lower mounting seat is located below, the precious metal catalytic component is installed between the upper mounting seat and the lower mounting seat, and the precious metal catalytic component obliquely cuts the air inlet direction of the circulation pipeline.

[0011] Further, the surface of the upper mounting seat facing the precious metal catalytic component is an inclined surface slanting downward, and a lower mounting base is provided at the lower part of the inclined surface.

[0012] Further, the surface of the lower mounting seat facing the precious metal catalytic component is a lower seat body slanting upward, and an abutting mounting base is provided on the top surface of the lower seat body.

[0013] Further, the waste gas purification mechanism includes: a purification housing; a purification inlet pipe and a purification outlet pipe provided on both sides of the purification housing; a water filtration container provided at the bottom of the purification housing, the water filtration container being filled with water, and a grid plate being provided at the upper part of the water filtration container; a water replenishment mechanism installed at the lower part of the purification housing; a gas pipe provided inside the purification housing, the upper part of the gas pipe communicating with the purification inlet pipe, and the lower part extending to the bottom of the water filtration container; a filtration and sealing housing provided inside the purification housing, with multiple filtration components provided inside the filtration and sealing housing; the lower part of the filtration and sealing housing communicating with the water filtration container, and the upper part of the filtration and sealing housing communicating with the purification outlet pipe.

[0014] Further, the water replenishment mechanism includes a water replenishment tank installed at the bottom of the purification housing, a water pump being provided inside the water replenishment tank, and the water pump communicating with the water filtration container through a pipeline.

[0015] Further, the multiple filtration components include a plurality of filter plates installed inside the filtration and sealing housing, and a filter inlet pipe being provided at the bottom of each filter plate, the filter inlet pipe communicating with the upper part of the water filtration container; filter sponges being filled inside the filter plates.

[0016] Further, the multiple filtration components further include a tail filter plate, with charcoal being filled inside the tail filter plate.

[0017] Adopting the above technical solution, compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. After the tail gas emission of the present utility model is purified by water washing and filtration, harmful substances are absorbed and purified, and then discharged into the atmosphere, achieving pollution-free emission, realizing environmental protection, and having low costs for water washing and filtration, good filtration effects, and being suitable for the treatment of the tail gas of the baking system.

[0019] 2. The precious metal catalytic component in the present utility model has a cover plate for convenient viewing and maintenance, and the installation method is convenient for disassembly, facilitating later replacement.

[0020] 3. After being purified and filtered by the present utility model, the discharged waste gas is much lower than the waste gas emission value allowed by the national standard, and the VOCs emission is not more than 20 mg / m 3 .

[0021] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present utility model. Description of the Drawings

[0022] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments in line with the present utility model, and are used together with the specification to explain the principles of the present utility model.

[0023] Figure 1 This is a schematic structural diagram of the overall structure of the present utility model.

[0024] Figure 2 This is a schematic structural diagram of the precious metal catalytic component in the present utility model.

[0025] Figure 3 This is a schematic structural diagram of the waste gas purification mechanism in the present utility model. Specific Embodiments

[0026] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0027] Please refer to Figures 1 - 3 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present utility model.

[0028] Embodiment

[0029] As Figures 1 - 3 shown, this embodiment provides a tail gas emission device for the flat wire baking furnace of an enameling machine, which is used on an enameling machine. The enameling machine successively includes a pay-off device, a wire drawing device, a rolling device, a flat wire drawing device, a water cleaning device, a bare wire softening device, a painting device, a baking device, and a rapid cooling zone device along the working direction. A baking furnace is provided on the baking device, and an inlet guide pipe 9, a corrugated furnace pipe 10, and a furnace mouth heat exchange pipe 13 are successively connected in the baking furnace.

[0030] A tail gas emission device is installed on the baking device, and the tail gas emission device includes a heat recycling mechanism and a heat exchange mechanism.

[0031] The thermal recycling mechanism is installed at the positions of the corrugated furnace tube and the inlet guide pipe, and includes a hot air circulation furnace chamber 8 provided at the connection of the corrugated furnace tube 10 and the inlet guide pipe 9; a circulation fan 7 communicated with the hot air circulation furnace chamber 8; a circulation pipeline 6 communicated with the circulation fan 7; a reaction cavity 4 provided at one end of the circulation pipeline 6, and a noble metal catalytic component 5 is provided in the reaction cavity 4. The reaction cavity 4 is communicated with the end of the corrugated furnace tube 10 through a pipeline.

[0032] An opening is provided on the reaction cavity 4, and a cover plate 16 is installed on the opening. The noble metal catalytic component includes an upper mounting seat 14 and a lower mounting seat corresponding to the air inlet direction of the circulation pipeline. The upper mounting seat 14 is located above, and the lower mounting seat is located below. The noble metal catalytic component is installed between the upper mounting seat 14 and the lower mounting seat, and the noble metal catalytic component 5 obliquely cuts the air inlet direction of the circulation pipeline. The surface of the upper mounting seat 14 facing the noble metal catalytic component 5 is an inclined surface slanting downward, and a lower mounting base is provided at the lower part of the inclined surface. The surface of the lower mounting seat facing the noble metal catalytic component is a lower seat body 18 slanting upward, and an abutting mounting base 17 is provided on the top surface of the lower seat body 18.

[0033] The heat exchange mechanism is provided on the furnace mouth heat exchange pipe 13, and includes a first exchange pipe 1 and a second exchange pipe 12 communicated with the furnace mouth heat exchange pipe 13, and a fan 3 communicating with the adjacent ends of the first exchange pipe 1 and the second exchange pipe 12. The fan 3 is communicated with an outer discharge pipeline 2, and the outer discharge pipeline 2 is communicated with an exhaust gas purification mechanism.

[0034] The exhaust gas purification mechanism includes a purification outer shell 21, a purification inlet pipe 19 and a purification outlet pipe 23 provided on both sides of the purification outer shell 21. A water filter container 25 is provided at the bottom of the purification outer shell 21, the water filter container 25 is filled with water, and a grid plate 24 is provided at the upper part of the water filter container 25. A water replenishing mechanism is installed at the lower part of the purification outer shell 21. The water replenishing mechanism includes a water replenishing tank 28 installed at the bottom of the purification outer shell 21, a water pump 27 is provided in the water replenishing tank 28, and the water pump 27 is communicated with the water filter container 25 through a pipeline.

[0035] An air pipe 30 is provided in the purification outer shell, the upper part of the air pipe 30 is communicated with the purification inlet pipe 19, and the lower part extends into the bottom of the water filter container; a filter sealing outer shell is provided in the purification outer shell 21, and a multi-layer filter component is provided in the filter sealing outer shell. The lower part of the filter sealing outer shell is communicated with the water filter container 25, and the upper part of the filter sealing outer shell is communicated with the purification outlet pipe 23.

[0036] The multi-layer filter component includes a plurality of filter mesh plates 20 installed in the filter sealing outer shell, and a filter mesh inlet pipe 29 is provided at the bottom of each filter mesh plate 20, and the filter mesh inlet pipe 29 is communicated with the upper part of the water filter container; filter sponges are filled in the filter mesh plates. The multi-layer filter component further includes a tail filter plate 22, and charcoal is filled in the tail filter plate 22.

[0037] After the tail gas emission is purified by water washing and filtration, harmful substances are absorbed and purified, and then discharged into the atmosphere, achieving pollution-free emission, realizing environmental protection, and having low costs for water washing and filtration, good filtration effects, and being suitable for the treatment of the tail gas of the baking system.

[0038] In the noble metal catalytic component of the present utility model, there is a cover plate for convenient viewing and maintenance, and the installation method is convenient for disassembly and convenient for later replacement.

[0039] After the purification and filtration of the present utility model, the discharged waste gas is much lower than the waste gas emission value allowed by the national standard, and the VOCs emission is not more than 20mg / m 3 .

[0040] After considering the specification and practicing the present utility model, those skilled in the art will easily think of other implementation schemes of the present utility model. This application aims to cover any variations, uses or adaptive changes of the present utility model, and these variations, uses or adaptive changes follow the general principles of the present utility model and include the common general knowledge or conventional technical means in the technical field not disclosed by the present utility model. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present utility model are pointed out by the appended claims.

[0041] It should be understood that the present utility model is not limited to the precise structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only limited by the appended claims.

Claims

1. Exhaust emission device for enameling machine flat wire baking furnace, used on the enameling machine, the enameling machine is composed of unwinding device, wire drawing device, calendering device, flat wire drawing device, water cleaning device, bare wire softening device, painting device, baking device and rapid cooling zone device in the working direction; The baking device is provided with a baking furnace, and the baking furnace is provided with an inlet guide pipe, a corrugated furnace pipe and a furnace mouth heat exchange pipe which are connected in sequence; It is characterized in that The baking device is provided with an exhaust gas emission device, and the exhaust gas emission device comprises: The heat circulation mechanism is installed at the position of the corrugated furnace tube and the inlet guide pipe, including A hot air circulation furnace provided at the connection between the corrugated furnace tube and the inlet guide pipe; a circulation fan connected to the hot air circulation furnace; a circulation pipeline connected to the circulation fan; A reaction chamber is provided at one end of the circulation pipeline, wherein a noble metal catalyst component is provided in the reaction chamber; the reaction chamber is connected to the end of the corrugated furnace tube through a pipeline; The heat exchange mechanism is arranged on the furnace mouth heat exchange tube, including A first exchange tube and a second exchange tube connected to the furnace mouth heat exchange tube; A fan is connected to adjacent ends of the first exchange tube and the second exchange tube at the same time; the fan is connected to an external exhaust pipeline, and the external exhaust pipeline is connected to an exhaust gas purification mechanism.

2. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 1, characterized in that: The reaction chamber is provided with an opening, and a cover plate is installed on the opening.

3. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 1, characterized in that: The precious metal catalytic component includes an upper mounting seat and a lower mounting seat corresponding to the air inlet direction of the circulation pipeline; the upper mounting seat is located at the top, and the lower mounting seat is located at the bottom, the precious metal catalytic component is installed between the upper mounting seat and the lower mounting seat, and the precious metal catalytic component obliquely cuts the air inlet direction of the circulation pipeline.

4. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 3, characterized in that: A side of the upper mounting seat facing the noble metal catalyst component is a slope that is inclined downward, and a lower mounting base is provided at the lower part of the slope.

5. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 3, characterized in that: The side of the lower mounting seat facing the noble metal catalyst component is a lower seat body inclined upward, and the top surface of the lower seat body is provided with a supporting mounting base.

6. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 1, characterized in that: The exhaust gas purification mechanism comprises: Purify the shell; A purified air inlet pipe and a purified air outlet pipe arranged on both sides of the purified housing; A water filter container is arranged at the bottom of the purification housing, the water filter container is filled with water, and a grid plate is arranged on the upper part of the water filter container; a water replenishment mechanism is installed on the lower part of the purification housing; an air pipe is arranged in the purification housing, the upper part of the air pipe is connected to the purification air inlet pipe, and the lower part extends into the bottom of the water filter container; A filter sealing shell is arranged in the purification shell, and a multi-layer filter assembly is arranged in the filter sealing shell; the lower part of the filter sealing shell is connected to the water filter container, and the upper part of the filter sealing shell is connected to the purification outlet pipe.

7. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 6, characterized in that: The water replenishment mechanism comprises a water replenishment tank installed at the bottom of the purification shell, a water pump is arranged in the water replenishment tank, and the water pump is connected to the water filter container through a pipeline.

8. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 7, characterized in that: The multi-layer filter assembly includes a plurality of filter plates installed in the filter sealing shell, and a filter air inlet pipe is provided at the bottom of each filter plate, and the filter air inlet pipe is connected to the upper part of the water filter container; the filter plate is filled with filter sponge.

9. The tail gas emission device for the enameling machine flat wire baking furnace according to claim 8, characterized in that: The multi-layer filter assembly further comprises a rear filter plate, wherein the rear filter plate is filled with charcoal.

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