CN219616003U

CN219616003U - Tunnel type paint dryer

Info

Publication number: CN219616003U
Application number: CN202320878552.7U
Authority: CN
Inventors: 王学锋
Original assignee: Changshu Lier Building Material Co ltd
Current assignee: Changshu Lier Building Material Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-09-01
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses a tunnel type paint dryer, comprising: the drying furnace comprises a drying furnace body, a horizontal conveying mechanism and a hot air system, wherein a hearth of the drying furnace is a tunnel type hearth with openings at two ends and is sealed around, the horizontal conveying mechanism is installed in the hearth, two ends of the horizontal conveying mechanism extend out of the outer side of the hearth respectively, the hot air system comprises a first hot air circulation pipeline, a second hot air circulation pipeline, an air suction cover and an air blowing port, an air heater and an air blower are installed between the first hot air circulation pipeline and the second hot air circulation pipeline, the air suction cover is installed at a position, close to a feed inlet, right above the hearth of the drying furnace, the air blowing port is installed on the inner side of a hearth discharge port above the horizontal conveying mechanism, and a hot air interface is arranged at the tail end of the second hot air circulation pipeline. Through the mode, the utility model can improve the drying efficiency of the product and reduce the paint color difference formed during drying.

Description

Tunnel type paint dryer

Technical Field

The utility model relates to the field of drying equipment, in particular to a tunnel type paint dryer.

Background

In order to reduce corrosion and improve visual appearance effect during production of products such as door and window furniture, paint is sprayed on the surface, and the painted surface is required to be dried after paint spraying so as to be further assembled or put in storage. The common mode of paint surface drying is natural drying or direct drying, the natural drying time is longer, and the factory production is usually direct drying at present. At present, a batch drying furnace is usually used when the products are dried, a plurality of products can be dried once by the batch drying furnace, but the volume of the furnace body is larger, the drying effects of different placing positions inside the furnace body are also different to some extent, chromatic aberration is easy to occur on the surfaces of finished products, and the power of the drying furnace is higher and the energy consumption is larger when the drying furnace works.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a tunnel type paint dryer which can improve the production efficiency of a drying line and reduce paint color difference of different products after drying.

In order to solve the technical problems, the utility model adopts a technical scheme that: there is provided a tunnel type paint dryer including: the drying furnace comprises a drying furnace, a horizontal conveying mechanism and a hot air system, wherein a hearth of the drying furnace is a tunnel type hearth with openings at two ends, the horizontal conveying mechanism is installed in the hearth, an opening at one end of the hearth is a feed inlet, an opening at the other end of the hearth is a discharge outlet, two ends of the horizontal conveying mechanism are a charging end and a discharging end respectively, the charging end is arranged outside the feed inlet, the discharging end is arranged outside the discharge outlet, the hot air system comprises a first hot air circulation pipeline, a second hot air circulation pipeline, an air suction cover and an air blowing opening, an air heater and an air blower are installed between the first hot air circulation pipeline and the second hot air circulation pipeline, the air suction cover is installed at a position close to the feed inlet right above the hearth of the drying furnace and is communicated with the first hot air circulation pipeline, the air blowing opening is installed on the discharge outlet of the hearth, an interface is arranged at the tail end of the second hot air circulation pipeline, and the air blowing opening is connected with the hot air interface through a pipeline.

In a preferred embodiment of the present utility model, the air heater is mounted in front of the blower, and a filter is further mounted on the air heater.

In a preferred embodiment of the utility model, the horizontal conveying mechanism comprises a conveying belt and a transmission structure, wherein the conveying belt is arranged on the transmission structure, and the conveying belt is a chain type hollowed-out conveying belt.

In a preferred embodiment of the utility model, the lateral length of the opening of the suction hood is not smaller than the width of the furnace chamber at the corresponding position.

In a preferred embodiment of the present utility model, the air outlets are two kinds, namely an upper air outlet and a lower air outlet, the upper air outlet is arranged on the discharge outlet above the horizontal conveying mechanism, and the lower air outlet is arranged on the discharge outlet below the horizontal conveying mechanism. The lower air blowing port is connected with the hot air interface through a hose.

The beneficial effects of the utility model are as follows: the utility model is an improvement on the existing door and window finishing paint drying furnace, the furnace body of the drying furnace is changed into a tunnel type furnace body, so that continuous convection drying of products such as doors and windows can be realized by matching with a conveying mechanism penetrating through a hearth, the tea production efficiency is obviously increased, on one hand, the whole occupied area of the furnace body is relatively small, a plurality of workshops can be arranged, on the other hand, the hot air heating paths experienced in the drying process of all the products are the same, the surfaces of the products in the same batch have no chromatic aberration basically, and the whole drying machine adopts a circulating hot air system, so that the heat loss in the operation process is effectively reduced, and the overall benefit of the production line is improved.

Drawings

FIG. 1 is a schematic side view of a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the material outlet end structure of the embodiment shown;

FIG. 3 is a schematic view of the material inlet end structure of the illustrated embodiment;

the components in the drawings are marked as follows:

1. the air heater, 2, the air-blower, 3, the first hot air circulation pipeline, 4, the second hot air circulation pipeline and 5.

The device comprises an air suction cover, an upper air blowing opening, a hot air interface, a charging end, a discharging end, a drying furnace and a lower air blowing opening.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 to 3, an embodiment of the present utility model includes:

a tunnel paint dryer having an overall length of about 15 meters comprising: the drying furnace comprises a drying furnace 10, a horizontal conveying mechanism and a hot air system, wherein a hearth of the drying furnace 10 is a tunnel hearth with openings at two ends and is provided with a closed periphery, the horizontal conveying mechanism is arranged in the hearth, an opening at one end of the hearth is a feed inlet, an opening at the other end of the hearth is a discharge outlet, two ends of the horizontal conveying mechanism are a feed end 8 and a discharge end 9 respectively, the feed end 8 is arranged outside the feed inlet and exceeds the feed inlet by about 73cm, the discharge end 9 is arranged outside the discharge outlet and exceeds the discharge outlet by about 75cm, the hot air system comprises a first hot air circulation pipeline 3, a second hot air circulation pipeline 4, an air heater 1 and a blower 2 are arranged between the first hot air circulation pipeline 3 and the second hot air circulation pipeline 4, the air suction hood 5 is arranged at a position close to the feed inlet above the hearth of the drying furnace and is communicated with the first hot air circulation pipeline 3, the blower is arranged inside the discharge outlet above the horizontal conveying mechanism, and the second hot air circulation pipeline 4 is provided with a special interface 7, and the special interface 7 is connected with the air blowing port through the interface.

The air heater 1 is arranged in front of the blower 2, and a filter is also arranged on the air heater 1. The air sucked by the air suction cover 5 in the first hot air circulation pipeline 3 is filtered, filtered and mixed, heated by the air heater 1 and blown into the second hot air circulation pipeline 4 by the blower 2, so that the influence of the dissipation of small molecular substances to the surrounding air in the evaporation process can be reduced.

The horizontal conveying mechanism comprises a conveying belt and a transmission structure, wherein the conveying belt is arranged on the transmission structure, and the conveying belt is a chain type hollowed-out conveying belt. The adoption of the chain type hollowed-out conveying belt can improve the overall heat exchange efficiency and accelerate the hardening of the surface paint layer of the product placed on the conveying belt.

The lateral length of the opening of the air suction cover 5 is 2.88 meters, the longitudinal width is 45cm, and the width of the hearth at the corresponding position is 2.66 meters, so that the air suction cover 5 can transversely cover the whole hearth, a negative pressure air curtain is effectively formed, the outflow of hot air is reduced, and the heat loss of the system is reduced.

The two types of air blowing openings are respectively an upper air blowing opening 6 and a lower air blowing opening 11, the upper air blowing opening 6 is arranged on a discharge opening above the conveying belt, the upper air blowing opening 6 is connected with a hot air interface 7 at the tail end of the second hot air circulation pipeline 4 through an interface pipeline, the two types of lower air blowing openings 11 are also arranged on a discharge opening below the conveying belt, and the lower air blowing opening 11 is connected with the hot air interface 7 at the tail end of the second hot air circulation pipeline 4 through a hose. Through last blast gate 6 and lower blast gate 11 blow in to furnace from the discharge gate simultaneously, can heat simultaneously horizontal transmission mechanism upper and lower side simultaneously, on the one hand reduce hot-blast from the escape of discharge gate department, on the other hand hot-blast distribution is even, can not appear heating dead angle, and drying effect is good, because lower blast gate 11 is located the below of conveyer belt, so use the hose to connect and make things convenient for on-the-spot personnel installation and adjustment.

The utility model further optimizes the structure of the existing tunnel type paint dryer, on one hand, adopts a hot air circulation mode to recycle the heating gas, effectively reduces heat loss and reduces the whole energy consumption, and on the other hand, adopts a countercurrent mode to accelerate heat exchange in a hearth, thereby improving the evaporation rate of water vapor.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A tunnel paint dryer, the tunnel paint dryer comprising: the drying furnace comprises a drying furnace, a horizontal conveying mechanism and a hot air system, wherein a hearth of the drying furnace is a tunnel type hearth with openings at two ends, the horizontal conveying mechanism is installed in the hearth, an opening at one end of the hearth is a feed inlet, an opening at the other end of the hearth is a discharge outlet, two ends of the horizontal conveying mechanism are a charging end and a discharging end respectively, the charging end is arranged outside the feed inlet, the discharging end is arranged outside the discharge outlet, the hot air system comprises a first hot air circulation pipeline, a second hot air circulation pipeline, an air suction cover and an air blowing opening, an air heater and an air blower are installed between the first hot air circulation pipeline and the second hot air circulation pipeline, the air suction cover is installed at a position close to the feed inlet right above the hearth of the drying furnace and is communicated with the first hot air circulation pipeline, the air blowing opening is installed on the discharge outlet of the hearth, an interface is arranged at the tail end of the second hot air circulation pipeline, and the air blowing opening is connected with the hot air interface through a pipeline.

2. The tunnel paint dryer of claim 1 wherein the air heater is mounted in front of the blower and a filter is also mounted on the air heater.

3. The tunnel paint dryer of claim 1, wherein the horizontal conveyor mechanism comprises a conveyor belt and a transmission structure, the conveyor belt is mounted on the transmission structure, and the conveyor belt is a chain type hollowed-out conveyor belt.

4. The tunnel paint dryer of claim 1, wherein the lateral length of the opening of the suction hood is not less than the width of the firebox at the corresponding location.

5. The tunnel paint dryer of claim 1, wherein the number of air outlets is two, an upper air outlet and a lower air outlet, the upper air outlet being mounted on the outlet above the horizontal conveyor mechanism, and the lower air outlet being mounted on the outlet below the horizontal conveyor mechanism.

6. The tunnel paint dryer of claim 5, wherein the lower air blowing port is connected to the hot air interface via a hose.