CN219474199U - Continuous dust-free drying furnace - Google Patents

Abstract

The utility model discloses a continuous dust-free drying furnace, which comprises a furnace body, a conveying belt and a thermal circulation bellows, wherein the two ends of the furnace body are respectively provided with an inlet and an outlet, the conveying belt passes through the furnace body, the two ends of the conveying belt extend out of the inlet and the outlet of the furnace body respectively, the thermal circulation bellows is used for heating and circulating airflow of the furnace body, the thermal circulation bellows comprises a bellows body communicated with the furnace body, a first filter arranged in the bellows body, a heater arranged in the bellows body, and a fan, the two ends of the fan are respectively connected with the furnace body and the bellows body, the fan is used for extracting and conveying the airflow in the bellows body into the furnace body, and the bellows body is provided with an air inlet communicated with the outside. The utility model forms high-temperature circulating air in the furnace, can quickly dry water on a workpiece, can keep positive pressure in the furnace, and prevents external air from directly entering the furnace without filtration when the workpiece is fed or discharged, and is particularly aimed at drying aluminum alloy sheets with the thickness of less than 0.15 mm.

Description

Continuous dust-free drying furnace

Technical Field

The utility model relates to the field of drying equipment, in particular to a continuous dust-free drying furnace.

Background

The existing dust-free drying furnace is generally smaller in size and mainly aims to effectively achieve the cleaning capability. The existing dust-free drying furnace is smaller in general in the feed inlet and the discharge outlet, so as to prevent dust from entering the feed inlet and the discharge outlet.

However, the dust-free drying oven above is used, and the time required for a single drying oven to dry the workpiece is long. If more workpieces to be dried exist, the problems of work piece backlog, large transportation workload, more demands for transport vehicles and temporary product storage racks, more product carrying links and more operators exist. Not only affects the production efficiency, but also increases the pollution probability of the workpieces in the carrying process.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the dust-free drying furnace which has strong drying capacity and can continuously dry workpieces.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a continuous dust-free drying furnace, its includes the furnace body that both ends are provided with the access & exit respectively, follow pass in the furnace body and both ends are followed respectively the conveyer belt that the access & exit of furnace body stretched out, and heat and circulate the thermal cycle bellows of furnace body air current, the thermal cycle bellows include with the bellows body of furnace body intercommunication, set up first filter in the bellows body, set up heater in the bellows body, both ends are connected respectively the furnace body with the fan of bellows body, the fan will the air current extraction in the bellows body is sent into in the furnace body, the bellows body is provided with external communicating air intake.

In the technical scheme, the hot air in the furnace is always in a circulating state, the inside of the furnace is in a positive pressure state relative to the outside of the furnace, when a workpiece enters the furnace body, the air flow in the furnace can flow outwards, and the air outside the furnace can not flow inwards, so that unfiltered air can be effectively prevented from entering the furnace.

According to the preferred technical scheme, a valve plate for adjusting the opening degree of the air inlet is arranged on the air inlet.

The preferable technical scheme, the top of conveyer belt be provided with the blast pipe of air-out end intercommunication of fan, the below of conveyer belt be provided with the return air pipe of bellows body intercommunication, the blast pipe with return air pipe surface evenly distributed has the through-hole, the blast pipe with the return air pipe is followed the length direction extension distribution of conveyer belt.

According to a further technical scheme, the thermal circulation bellows is arranged at the top of the furnace body, and the return air pipe is communicated with the bellows body through a connecting pipe arranged at the side part of the furnace body.

According to a further technical scheme, a second filter is arranged in the air supply pipe.

According to a further technical scheme, the first filter is a primary filter, the second filter is a high-efficiency filter, and the high-efficiency filter is filled in the air supply pipe.

According to the preferred technical scheme, wind shielding curtains are respectively arranged on the inlet and outlet of the furnace body.

According to the preferable technical scheme, an insulation layer is arranged on the surface of the shell of the fan.

In a preferred technical scheme, the heater is a steam heat exchanger.

According to the preferred technical scheme, a plurality of access doors are arranged on the side portion of the furnace body.

Among the above-mentioned technical scheme, the access door sets up with the furnace body lateral part uniformly, can make things convenient for the maintainer to overhaul in time, also does benefit to the maintainer to get into from suitable access point, convenient investigation and overhaul.

The utility model has the advantages that:

1. the utility model forms high-temperature circulating air in the furnace, which not only can clean water on the workpiece, but also can keep positive pressure in the furnace, and prevent external air from directly entering the furnace without filtration when the workpiece is fed or discharged, so that the feed inlet and the feed outlet of the utility model can be made into larger sizes and are suitable for workpieces with different sizes;

2. the utility model has larger volume and longer conveyer belt, can continuously dry clean workpieces, and reduces the time, labor, transportation and the like;

3. according to the utility model, 99.99% of dust in circulated air can be filtered through the cooperation of the first filter and the second filter, so that dust-free conditions are achieved;

4. the heat preservation layer is arranged on the surface of the shell of the fan, so that heat loss can be effectively reduced, and the fan is more energy-saving and environment-friendly;

5. the utility model has good drying effect particularly for aluminum alloy thin plates with the thickness of less than 0.15 mm.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, in which the drawings are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

The utility model is further described below with reference to the accompanying drawings and examples:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the thermal cycle bellows structure of the present utility model.

Wherein: 1. a conveyor belt; 2. a thermal circulation bellows; 3. a blower; 4. an air supply pipe; 5. an air return pipe; 6. a connecting pipe; 7. an access door; 8. cleaning a jig; 9. a first filter; 10. a heat preservation layer; 11. and an air outlet end.

Detailed Description

Examples: as shown in fig. 1, a continuous dust-free drying furnace comprises a furnace body with inlet and outlet at both ends, a conveyor belt 1 passing through the furnace body and extending from the inlet and outlet of the furnace body at both ends, and a thermal circulation bellows 2 for heating and circulating the air flow of the furnace body, wherein the thermal circulation bellows 2 comprises a bellows body communicated with the furnace body, a first filter 9 arranged in the bellows body, a heater arranged in the bellows body, and a fan 3 with both ends connected with the furnace body and the bellows body, the fan 3 extracts and feeds the air flow in the bellows body into the furnace body, and the bellows body is provided with an air inlet communicated with the outside.

The hot air in the furnace is always in a circulating state, the inside of the furnace is in a positive pressure state relative to the outside of the furnace, when a workpiece enters the furnace body, the air flow in the furnace can flow outwards, and the air outside cannot flow into the furnace, so that unfiltered air can be effectively prevented from entering the furnace.

The air inlet is provided with a valve plate for adjusting the opening degree.

The top of conveyer belt 1 is provided with blast pipe 4 with the air-out end 11 intercommunication of fan 3, and the below of conveyer belt 1 is provided with the return air pipe 5 with bellows body intercommunication, and blast pipe 4 and return air pipe 5 surface evenly distributed have the through-hole, and blast pipe 4 and return air pipe 5 extend along the length direction of conveyer belt 1 and distribute.

The thermal circulation bellows 2 is arranged at the top of the furnace body, and the return air pipe 5 is communicated with the bellows body through a connecting pipe 6 arranged at the side part of the furnace body.

A second filter is arranged in the blast pipe 4.

The first filter 9 is a primary filter, the second filter is a high-efficiency filter, and the high-efficiency filter is filled in the air supply pipe 4.

Wind shielding curtains are respectively arranged on the inlet and outlet of the furnace body.

The surface of the shell of the fan 3 is provided with an insulating layer 10.

The heater is a steam heat exchanger.

The side of the body is provided with a plurality of access doors 7.

The access door 7 is evenly arranged on the side part of the furnace body, so that the access door can facilitate the timely overhaul of an maintainer, and is also beneficial to the access of the maintainer from a proper overhaul point, thereby facilitating the investigation and overhaul.

The application method of the embodiment comprises the following steps:

for aluminum alloy sheets having a thickness of less than 0.15 mmd.

Firstly starting a drying furnace, running a fan 3, heating air flow extracted by the fan 3 by a heater, blowing air out of the fan 3, entering a furnace body through an air supply pipe 4, passing through a conveyer belt 1, entering an air return pipe 5 below the conveyer belt 1, and returning to an air box from a connecting pipe 6 at the side edge of the furnace body to form a hot air circulation, wherein the interior of the furnace is in a positive pressure state;

a first filter 9 is arranged in the thermal circulation bellows 2, a first filtering procedure can be carried out on wind, a second filter is arranged in the air supply pipe 4, the filter is an efficient filter, 99.99% of dust can be filtered, and dust-free circulation wind is realized;

the cleaning jig 8 with the aluminum alloy sheet with the thickness smaller than 0.15mm is placed at the starting end of the conveying belt 1, the conveying belt 1 is started, the cleaning jig 8 is slowly fed into the furnace, the cleaning jig 8 receives the purging of circulating hot air in the furnace, and the hot air takes away water and dust on the aluminum alloy sheet in the cleaning jig 8 to achieve the aim of dedusting and drying.

The embodiment is convenient to operate, and can continuously dry and remove dust on the aluminum alloy sheet, so that the production efficiency is effectively improved, the proportion of personnel is reduced, and the number of moving and temporary storage racks of the aluminum alloy sheet is reduced.

Claims (10)

1. The utility model provides a continuous dustless dry furnace, its includes the furnace body that both ends are provided with the access & exit respectively, follow pass in the furnace body and both ends are followed respectively the conveyer belt that stretches out of the access & exit of furnace body to and the thermal cycle bellows of heating and circulation furnace body air current, its characterized in that: the thermal cycle bellows include with the bellows body of furnace body intercommunication, set up first filter in the bellows body, set up heater in the bellows body, both ends are connected respectively the furnace body with the fan of bellows body, the fan will the internal air current extraction of bellows is sent into in the furnace body, the bellows body is provided with the communicating air intake of external world.

2. A continuous dust-free drying oven according to claim 1, wherein: the air inlet is provided with a valve plate for adjusting the opening degree of the air inlet.

3. A continuous dust-free drying oven according to claim 1, wherein: the top of conveyer belt be provided with the blast pipe of air-out end intercommunication of fan, the below of conveyer belt be provided with the return air pipe of bellows body intercommunication, the blast pipe with return air pipe surface evenly distributed has the through-hole, the blast pipe with the return air pipe is followed the length direction extension distribution of conveyer belt.

4. A continuous dust-free drying oven according to claim 3, wherein: the thermal circulation bellows is arranged at the top of the furnace body, and the return air pipe is communicated with the bellows body through a connecting pipe arranged at the side part of the furnace body.

5. A continuous dust-free drying oven according to claim 3, wherein: a second filter is arranged in the air supply pipe.

6. A continuous dust-free drying oven according to claim 5, wherein: the first filter is a primary filter, the second filter is a high-efficiency filter, and the high-efficiency filter is filled in the air supply pipe.

7. A continuous dust-free drying oven according to claim 1, wherein: and wind shielding curtains are respectively arranged on the inlet and outlet of the furnace body.

8. A continuous dust-free drying oven according to claim 1, wherein: the surface of the shell of the fan is provided with an insulating layer.

9. A continuous dust-free drying oven according to claim 1, wherein: the heater is a steam heat exchanger.

10. A continuous dust-free drying oven according to claim 1, wherein: the lateral part of furnace body is provided with a plurality of access doors.