A double-circulation double-exhaust oven based on independent temperature control

Abstract

The application discloses a double-cycle double-waste drying furnace based on independent temperature control, which comprises a furnace body (1), a hearth (2) is arranged in the furnace body (1), linear threading openings (3) are arranged on the front and back sides of the middle part of the hearth (2), and a movable lifting partition plate assembly (4) is arranged between the two linear threading openings (3); a plurality of electric heating modules (5) are arranged in the hearth (2) and are distributed side by side, and the electric heating modules (5) are located below the linear threading openings (3); an adjustable air inlet module (6) is arranged at the bottom of the hearth (2), and an adjustable air outlet module (7) is arranged at the top of the hearth (2). The application has the characteristics that two different temperature drying operations can be simultaneously performed.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of baking oven for enameled wire production, in particular to a kind of double-circulation double-row waste baking oven based on independent temperature control. BACKGROUND

[0002] Enameled wire needs to use baking oven in production process to dry and heat curing paint film on the surface of wire, its principle is that the wire after painting is baked in furnace, forming insulated wire.However, enameled wire products are various, and the paint layer on the surface of different enameled wire products is also different, and the drying temperature of different paint layers is also different, in order to produce different types of enameled wire products.But, since the existing baking oven is generally single-furnace structure, a baking oven can only carry out single drying temperature drying operation, and the same baking oven cannot carry out drying operation of two different drying temperature enameled wires at the same time;This will lead to the need to set up multiple baking ovens in the production process of enameled wire in order to ensure the production of different enameled wires and their production capacity, and the enterprise equipment investment will increase.Therefore, the existing technology cannot carry out drying operation of two different drying temperature enameled wires at the same time. SUMMARY

[0003] The purpose of the present application is to provide a kind of double-circulation double-row waste baking oven based on independent temperature control.The present application has the characteristics of being able to carry out two different temperature drying operations at the same time.

[0004] The technical scheme of the present application: a kind of double-circulation double-row waste baking oven based on independent temperature control, including furnace body, furnace body is equipped with furnace, and the front and back sides of the middle part of furnace are equipped with wire type threading port, and movable lifting baffle assembly is arranged between the two wire type threading ports;Multiple electric heating modules are arranged in the furnace, and the electric heating modules are located below the wire type threading port;Adjustable air inlet module is arranged at the bottom of the furnace, and adjustable air outlet module is arranged at the top of the furnace.

[0005] In the foregoing double-circulation double-row waste baking oven based on independent temperature control, the adjustable air inlet module includes multiple air inlets located at the bottom of the furnace and corresponding to the positions of the electric heating modules, each air inlet is connected with an air inlet branch pipe, and the air inlet branch pipes are connected in parallel with an air inlet main pipe;A lower electric gate valve is arranged between adjacent air inlet branch pipes on the air inlet main pipe, and a lower filter and a primary electric heater are arranged at both ends in the air inlet main pipe.

[0006] In the foregoing double-circulation double-row waste baking oven based on independent temperature control, the adjustable air outlet module includes multiple air outlets located at the top of the furnace and corresponding to the positions of the electric heating modules, each air outlet is connected with an air outlet branch pipe, and the air outlet branch pipes are connected in parallel with an air outlet main pipe, and an upper electric gate valve is arranged between adjacent air outlet branch pipes on the air outlet main pipe;A main exhaust pipe is arranged at both ends of the air outlet main pipe, and a primary catalytic combustor, a secondary catalytic combustor and an upper filter are sequentially arranged in the main exhaust pipe.

[0007] In the aforementioned double-circulation double-waste-removal oven based on independent temperature control, the main exhaust pipe side end is further connected with a circulation branch pipe above the upper filter, and the circulation branch pipe is connected with the end of the air inlet main pipe; the inlet of the circulation branch pipe and the upper end of the main exhaust pipe are both provided with electric valves.

[0008] In the aforementioned double-circulation double-waste-removal oven based on independent temperature control, the movable lifting partition assembly comprises a middle partition shell corresponding to the furnace chamber, and a cavity is arranged in the middle partition shell, two upper and lower sealing base plates are arranged in the cavity, and end partition plates are arranged on the sealing base plates; upward high-temperature-resistant hydraulic cylinders and downward high-temperature-resistant hydraulic cylinders matched with the sealing base plates are arranged on the front and rear side walls in the cavity; sliding blocks matched with linear threading holes are arranged at the front and rear ends of the middle partition shell; and electric lead screws matched with the sliding blocks are arranged on the front and rear side walls of the furnace body.

[0009] Compared with the prior art, the movable lifting partition assembly is arranged in the furnace body to divide the furnace chamber into two independent drying cavities, and the independent temperature control electric heating modules arranged in parallel, the adjustable air inlet module and the adjustable exhaust module capable of automatically adjusting the air inlet and exhaust areas according to the positions of the drying cavities are matched with each other, so that independent temperature control, air inlet and exhaust treatment circulation of the two drying cavities can be realized. At the same time, the movable lifting partition assembly can automatically adjust the size of the two drying cavities according to the production amount of the required drying enameled wire, so that the purpose of flexibly adjusting the drying cavities according to the production amount can be achieved, and the use efficiency of the oven is effectively improved under the premise of meeting various production amounts. In summary, the oven has the characteristics of being capable of simultaneously performing two different temperature drying operations. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 is a structural schematic diagram of the oven;

[0011] Fig. 2 is a structural schematic diagram of the oven;

[0012] The marks in the drawings are: 1-furnace body, 2-furnace, 3-linear threading port, 4-mobile lifting partition assembly, 5-electric heating module, 6-adjustable air inlet module, 7-adjustable air outlet module, 601-air inlet, 602-air inlet branch pipe, 603-air inlet main pipe, 604-lower electric gate valve, 605-lower filter, 606-primary electric heater, 701-air outlet, 702-air outlet branch pipe, 703-air outlet main pipe, 704-upper electric gate valve, 705-main exhaust pipe, 706-primary catalytic combustor, 707-secondary catalytic combustor, 708-upper filter, 709-circulation branch pipe, 710-electric valve, 401-middle partition shell, 402-cavity, 403-sealing base plate, 404-end partition, 405-upward high-temperature-resistant hydraulic cylinder, 408-downward high-temperature-resistant hydraulic cylinder, 406-sliding block, 407-electric screw module. DETAILED DESCRIPTION

[0013] The application will be further described below in conjunction with the drawings and examples, but not as the basis for limiting the application.

[0014] Example. The double-circulation double-exhaust oven based on independent temperature control is composed of Figs. 1-2 as shown, including a furnace body 1, the furnace body 1 is provided with a furnace 2, the front and rear sides of the middle part of the furnace 2 are provided with linear threading ports 3, and a mobile lifting partition assembly 4 is arranged between the two linear threading ports 3; a plurality of electric heating modules 5 are arranged in the furnace 2 in parallel, and the electric heating modules 5 are located below the linear threading ports 3; an adjustable air inlet module 6 is arranged at the bottom of the furnace 2, and an adjustable air outlet module 7 is arranged at the top of the furnace 2.

[0015] The adjustable air inlet module 6 includes a plurality of air inlets 601 located at the bottom of the furnace 2 and corresponding to the positions of the electric heating modules 5, each air inlet 601 is connected with an air inlet branch pipe 602, and the air inlet branch pipes 602 are connected in parallel to an air inlet main pipe 603; the air inlet main pipe 603 is provided with a lower electric gate valve 604 between adjacent air inlet branch pipes 602, and the air inlet main pipe 603 is provided with a lower filter 605 and a primary electric heater 606 at both ends.

[0016] The adjustable air outlet module 7 includes a plurality of air outlets 701 located at the top of the furnace 2 and corresponding to the positions of the electric heating modules 5, each air outlet 701 is connected with an air outlet branch pipe 702, and the air outlet branch pipes 702 are connected in parallel to an air outlet main pipe 703, and the air outlet main pipe 703 is provided with an upper electric gate valve 704 between adjacent air outlet branch pipes 702; the air outlet main pipe 703 is provided with a main exhaust pipe 705 at both ends, and the main exhaust pipe 705 is sequentially provided with a primary catalytic combustor 706, a secondary catalytic combustor 707 and an upper filter 708.

[0017] The side end of the main exhaust pipe 705 is also connected with a circulating branch pipe 709 above the upper filter 708, and the circulating branch pipe 709 is connected with the end of the air inlet main pipe 603; the inlet of the circulating branch pipe 709 and the upper end of the main exhaust pipe 705 are both provided with electric valves 710.

[0018] The movable lifting partition assembly 4 comprises a middle partition shell 401 corresponding to the hearth 2, the middle partition shell 401 is provided with a cavity 402, the cavity 402 is provided with two sealing base plates 403 distributed in upper and lower positions, and the sealing base plates 403 are provided with end partition plates 404; the front and rear sidewalls in the cavity 402 are both provided with upward high-temperature-resistant hydraulic cylinders 405 and downward high-temperature-resistant hydraulic cylinders 408 matched with the sealing base plates 403; the front and rear ends of the middle partition shell 401 are provided with sliding blocks 406 matched with the linear wire passing port 3; the front and rear sidewalls of the furnace body 1 are provided with electric screw modules 407 connected with the sliding blocks 406.

[0019] Each air inlet branch pipe is provided with a fan, and each air exhaust pipe is provided with an air exhaust fan;

[0020] The circulating branch pipe is provided with a circulating fan, the two ends of the air exhaust main pipe are provided with main air exhaust fans, and the two ends of the air inlet main pipe are provided with main air inlet fans.

[0021] Air equalizing covers are arranged above the air inlets, and gaps matched with the sizes of the end partition plates are arranged between adjacent air equalizing covers.

[0022] Filter covers are arranged below the air outlets, and gaps matched with the sizes of the end partition plates are arranged between adjacent filter covers.

[0023] Preferably, the air inlet is a conical flared structure.

[0024] Temperature sensors are arranged on the left and right sidewalls in the hearth, so as to monitor the temperatures of the two hearths and facilitate subsequent individual temperature control.

[0025] The two ends of the air inlet main pipe are also connected with serpentine heat exchangers through pipelines, the serpentine heat exchangers are located outside the main exhaust pipe, the air inlets of the serpentine heat exchangers are connected with air, and thus the energy utilization rate can be effectively improved.

[0026] During the baking process of the enameled wire, solvent vapor above 400 DEG C and cracked low-molecular substances are generated, the density of the solvent vapor and the humidity in the gas affect the solvent evaporation in the baking process and the curing of the paint film, and the cracked low-molecular substances affect the smoothness and brightness of the paint film, so the solvent vapor and the cracked low-molecular substances generated in the oven must be discharged from the hearth in time. According to the application, the regulating exhaust module is arranged, the solvent vapor and the low-molecular substances in the hearth are sequentially sucked into the main exhaust pipe, are combusted through a primary catalytic combustor and a secondary catalytic combustor, and then are filtered through a filter, so that the solvent vapor and the low-molecular substances can be returned to the air inlet main pipe through the circulating branch pipe or can be directly discharged to the outside.

[0027] The use process of the present application is as follows: first, according to the production of different enameled wires, the moving lifting partition assembly is controlled to move to adjust the drying areas of the two drying cavities, and the drying heating temperature of the electric heating module in each drying cavity is adjusted; at the same time, according to the size of the two drying cavities, the air inlet range of the adjustable air inlet module and the air outlet range of the adjustable air outlet module are adjusted; after the above adjustment is completed, the wire baking is started.

[0028] The electric screw module can adopt a conventional screw structure, and the electric screw module is connected with the sliding block through the support.

[0029] The working process of the moving lifting partition assembly is as follows: the electric screw modules on the front and rear side walls work synchronously, driving the sliding blocks to move left and right along the linear threading port, and when moving to the set position, the electric screw modules stop working, and the upward and downward high-temperature-resistant double-head hydraulic cylinders start working to move the upper and lower sealing base plates and end partition plates outward until the upper end partition plate contacts the top wall of the hearth and the lower end partition plate contacts the bottom surface of the hearth, and the end partition plates are located between adjacent filter covers or adjacent air uniforming covers, completing the separation adjustment of the left and right two drying cavities.

[0030] The adjustment process of the adjustable air inlet module is as follows: according to the adjustment position of the moving lifting partition assembly, the lower electric gate valve between the left and right drying cavities is controlled to be closed, and the remaining lower electric gate valves are opened, so that the air inlets of the left and right two drying cavities are independent and do not affect each other; the air inlet is from the air inlet of the left and right ends of the air inlet main pipe, and after the filtering action of the lower filter and the heating of the primary electric heater, it flows into the air inlet through the air inlet branch pipe, and finally flows into the drying cavity under the air uniforming of the air uniforming cover.

[0031] The electric valves are arranged on the upper and lower ends of the circulating branch pipe.

[0032] The adjustment process of the adjustable air outlet module is as follows: according to the adjustment position of the moving lifting partition assembly, the upper electric gate valve between the left and right drying cavities is controlled to be closed, and the remaining upper electric gate valves are opened, so that the air outlets of the left and right two drying cavities are independent and do not affect each other; then, the exhaust gas flows to the respective main exhaust pipe through the exhaust gas branch pipe and the exhaust gas main pipe, and after the catalytic combustion of the primary catalytic combustor and the secondary catalytic combustor in the main exhaust pipe, the exhaust gas is filtered by the upper filter to obtain the treated gas. Since the part of the gas contains a lot of heat, the electric valve on the circulating branch pipe can be opened, and the electric valve at the upper end of the main exhaust pipe can be closed, and the treated gas can be reflowed to the air inlet of the air inlet main pipe through the circulating branch pipe, so that the heat energy utilization rate can be effectively improved. The electric valve on the circulating branch pipe can also be closed, and the electric valve at the upper end of the main exhaust pipe can be opened, so that the treated gas is directly discharged.

Claims

1. A double cycle double exhaust oven based on independent temperature control, characterized in that: The utility model relates to a kind of furnace, including furnace body (1), furnace body (1) is equipped with hearth (2), the front and rear sides of middle part of hearth (2) are equipped with linear threading port (3), and movable lifting partition assembly (4) is equipped between two linear threading ports (3);The hearth (2) is equipped with multiple side-by-side distribution electric heating module (5), and electric heating module (5) is below linear threading port (3);The bottom of the hearth (2) is equipped with adjustable air intake module (6), and the top of the hearth (2) is equipped with adjustable exhaust module (7);Adjustable air intake module (6) includes multiple air inlets (601) located at the bottom of the hearth (2) and corresponding with electric heating module (5) position, each air inlet (601) is connected with air intake branch pipe (602), and air intake branch pipe (602) is connected in parallel in air intake main pipe (603);Lower electric gate valve (604) is equipped between adjacent air intake branch pipe (602) on the air intake main pipe (603), and lower filter (605) and primary electric heater (606) are equipped in both ends of air intake main pipe (603);Adjustable exhaust module (7) includes multiple exhaust ports (701) located at the top of the hearth (2) and corresponding with electric heating module (5) position, each exhaust port (701) is connected with exhaust branch pipe (702), and exhaust branch pipe (702) is connected in parallel in exhaust main pipe (703), and upper electric gate valve (704) is equipped between adjacent exhaust branch pipe (702) on exhaust main pipe (703);Main exhaust pipe (705) is equipped in both ends of exhaust main pipe (703), and primary catalytic combustor (706), secondary catalytic combustor (707) and upper filter (708) are sequentially equipped in main exhaust pipe (705);The side end of main exhaust pipe (705) is also connected with circulation branch pipe (709) located above upper filter (708), and circulation branch pipe (709) is connected with the end of air intake main pipe (603);The inlet of circulation branch pipe (709) and the upper end of main exhaust pipe (705) are equipped with electric valve (710);Movable lifting partition assembly (4) includes middle part partition shell (401) corresponding with the hearth (2), and cavity (402) is equipped in middle part partition shell (401), two sealing base plates (403) are distributed in cavity (402) and are distributed upwards and downwards, and end partition (404) is equipped on sealing base plate (403);Upward high-temperature-resistant hydraulic cylinder (405) and downward high-temperature-resistant hydraulic cylinder (408) matched with sealing base plate (403) are equipped on the front and rear sidewalls in cavity (402);The front and rear ends of middle part partition shell (401) are equipped with sliding block (406) matched with linear threading port (3);Electric screw module (407) connected with sliding block (406) is equipped on the front and rear sidewalls of furnace body (1);Air inlet (601) is conical flared structure.

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