CN209639379U - A kind of drying machine with hot air circulation - Google Patents

Abstract

A kind of drying machine with hot air circulation, including staving, guide duct at the top of staving is set, for cleaning the disposal box of hot wind, for realizing the blower of hot air circulation, hot air pipe for gas heating, the staving, guide duct, disposal box, blower, hot air pipe is sequentially communicated to form hot air circulation channel, the staving includes dry bucket, bung above dry bucket is set, the cone tank of dry bucket bottom is set, the bung and dry bucket are hinged, the bung is equipped with the connector for connecting guide duct, the connector, dry bucket, cone tank is sequentially communicated, the bottom of the cone tank is equipped with taper discharge head, the taper discharge head is connected to cone tank, heat-preservation cotton is filled between the outer wall and inner wall of the staving, the outer wall of the guide duct hot air pipe is provided with insulating layer, the inner wall of the cone tank is fixed Annular hollow pipe is installed.

Description

A dryer with hot air circulation

technical field

The utility model relates to the field of drying equipment, in particular to a drying machine with hot air circulation.

Background technique

The dryer is a mechanical device that uses heat energy to reduce the moisture content of the material. It is used to dry the object. It vaporizes the moisture in the material by heating to obtain a solid material with a specified moisture content. The plastic dust particle dryer in the traditional industry directly inhales and heats the external cold air into the drying chamber and contacts the atomized material in parallel to achieve drying. This method has low drying efficiency and high energy consumption. All heat energy is discharged into the air, in order to reduce energy consumption, in response to the national environmental protection policy of energy conservation and emission reduction.

Now there are hot air circulation dryers on the market. By using the discharged hot air to reuse the remaining heat to dry the product, the energy consumption of the dryer is greatly reduced. For example, the Chinese utility model patent, the patent name is a kind of Hot air circulation dryer with energy-saving function, the patent application number is 201820220726.X, which discloses a hot air circulation dryer with energy-saving function, including a body, the middle part of the body is an open structure, and the middle end of the front of the body is A glass window is provided, the bottom of the exhaust fan is connected to the middle of the back of the body, the top of the exhaust fan is arranged outside the body, one side of the bottom of the body is connected to a control box through an air inlet pipe, and the bottom of the body is connected to a control box. The inside is provided with a stage, and there are a plurality of the stages, and the two stages are parallel structures, and the inside of the surface wall of the body is provided with an exhaust pipe, and the thread of the exhaust pipe is Surrounding the inside of the surface wall of the body, the exhaust pipe and the air inlet pipe are connected to each other, and a circulation port is provided between the exhaust pipes, and the space between the circulation port and the exhaust pipe is an open structure. The dryer can effectively use the circular feedback to transfer heat and reduce the energy consumption of the dryer. However, the dryer with this structure absorbs moisture by setting an alumina device on the loading table, so it cannot handle dust and other particles in the material. After long-term operation, the dust will gather in the exhaust fan and heat pipe, which will affect the normal influence of the exhaust fan and heat pipe, and there are unreasonable structural settings of the discharge port and heat pipe, which will make the discharge of the dryer The process is relatively cumbersome, and the overall volume of the heating pipe is relatively large, so the installation is difficult.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a dryer with hot air circulation.

The technical scheme that the utility model solves its technical problem adopts is:

A dryer with hot air circulation, comprising a barrel body, an air guide pipe arranged on the top of the barrel body, a dust collecting box for cleaning hot air, a fan for realizing hot air circulation, and a hot air pipe for gas heating. The barrel body, air guide pipe, dust collection box, fan, and hot air pipe are connected in sequence to form a hot air circulation channel. The barrel body includes a drying barrel, a barrel cover arranged above the drying barrel, and a conical barrel arranged at the bottom of the drying barrel , the bung is hinged with the drying bucket, the bung is provided with a connector for connecting the air guide pipe, the connector, the drying bucket, and the conical bucket are connected in sequence, and the bottom of the conical bucket is provided with a conical Shaped discharge head, the conical discharge head communicates with the conical barrel, insulation cotton is filled between the outer wall and the inner wall of the barrel body, the outer wall of the hot air pipe of the air guide pipe is provided with an insulating layer, the The inner wall of the conical barrel is fixed with an annular hollow pipe, and several hot air nozzles are arranged on the annular hollow pipe, and the hot air pipe, the annular hollow pipe, and the hot air nozzles are connected in sequence, and the hot air nozzles are arranged obliquely upward .

As a further improvement of the utility model, several heat pipes are arranged in the hot air pipe, and a mounting plate for installing the heat pipe is provided at the end of the heat pipe, the heat pipe is a U-shaped structure, and the mounting plate The mounting position for installing the heat pipe is provided on the top, the mounting position is a regular polygon structure with an even number of sides, and each heat pipe is installed on two vertices opposite to the mounting position to form a cross installation structure.

As a further improvement of the utility model, the top of the conical discharge head is provided with an insertion groove for connecting with the conical barrel, the conical barrel is clamped with the insertion groove, and the conical discharge head The side wall is provided with an auxiliary channel, and the auxiliary channel communicates with the inner cavity of the tapered discharge head.

As a further improvement of the utility model, the outer wall of the hot air pipe is fixedly connected with a control box for controlling the operation of the dryer, and the control box is connected with a fan and a heating pipe circuit, and the fan is connected in parallel with the heating pipe.

As a further improvement of the utility model, a bracket is fixedly installed below the tapered bucket, and the bracket is fixedly connected with the side wall of the tapered bucket, and there are multiple anti-slip grooves evenly distributed on the bottom of the bracket.

As a further improvement of the utility model, a dust collecting net is arranged in the dust collecting box, a dust collecting chamber is arranged under the dust collecting mesh, and an outlet for dust removal is arranged under the dust collecting chamber.

As a further improvement of the utility model, the outer wall of the annular hollow tube is bonded to the inner wall of the tapered barrel.

As a further improvement of the utility model, an air volume regulating device is provided on the air guiding pipe.

The beneficial effects of the utility model are: a drying machine with hot air circulation of the utility model, by setting the barrel body, the air guide pipe, the dust collecting box, the fan, and the hot air pipe in order to form a hot air circulation channel, so that the air in the barrel The hot air passes through the action of the fan on the hot air circulation channel through the dust collection and cleaning, and the hot air is recycled after being heated by the hot air pipe, and the outer wall and the inner wall of the barrel are filled with insulation cotton, and the air guide pipe and The outer wall of the hot air pipe is wrapped with a layer of insulation layer to reduce heat loss and reduce the energy consumption of the dryer as a whole; further, the U-shaped structure of the heating pipes is installed in a crossed manner, which greatly reduces the installation space of the heating pipes and makes the dryer more efficient. The volume is reduced.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a schematic diagram of the overall installation structure of the present embodiment;

Fig. 2 is the schematic diagram of hot air circulation of the present embodiment;

Fig. 3 is the structural representation of the hot air pipe of the present embodiment;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the structural representation of dust box of present embodiment;

Figure 6 is a top view of Figure 5;

Fig. 7 is the perspective view of the tapered discharge head of the present embodiment;

Fig. 8 is the bottom view of the bracket of this embodiment;

Fig. 9 is an enlarged view of part A in Fig. 2;

Fig. 10 is a schematic structural view of the annular hollow tube of this embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model.

Example:

This embodiment discloses a dryer with hot air circulation, which includes a barrel body 1, an air guide pipe 2 arranged on the top of the barrel body 1, a dust collection box 3 for cleaning hot air, a fan 4 for realizing hot air circulation, The hot air pipe 5 used for gas heating, the barrel body 1, the air guide pipe 2, the dust collection box 3, the fan 4, and the hot air pipe 5 are sequentially connected to form a hot air circulation channel. The barrel body 1 includes a drying barrel 11, The barrel cover 12 arranged on the top of the drying barrel 11, the conical barrel 13 arranged at the bottom of the drying barrel 11, the barrel cover 12 is hinged with the drying barrel 11, and the barrel cover 12 is provided with a connection for connecting the air guide pipe 2 Head 121, the connecting head 121, the drying barrel 11, and the conical barrel 13 are sequentially connected. The outer wall and the inner wall of the barrel body 1 are filled with insulation cotton, the outer wall of the air guide pipe 2 and the hot air pipe 5 are provided with an insulation layer, and the dryer is provided with an insulation structure as a whole, so that the hot air is reduced during the circulation process. The heat is lost to further improve the utilization rate of heat in the hot air. The air guide pipe 2 is provided with an air volume adjustment device 21, and the air volume adjustment device 21 is a flow valve. The user can control the flow of the hot air in the dryer through the flow valve. control. The inner wall of the tapered barrel 13 is fixedly equipped with an annular hollow pipe 7, and the annular hollow pipe 7 is provided with several hot air nozzles 8, and the hot air pipe 5, the annular hollow pipe 7, and the hot air nozzle 8 are sequentially arranged. Connected, the hot air nozzles 8 are arranged obliquely upwards, the outer wall of the annular hollow tube 7 is attached to the inner wall of the tapered barrel 13, and the hot air is evenly distributed in each hot air nozzle 8 through the annular hollow tube 7 and enters the barrel body 1 , so that the hot air distribution in the barrel body 1 is more uniform, and the drying quality and drying efficiency of materials are improved.

As a preferred embodiment, the hot air pipe 5 is provided with three heating pipes 51, and the end of the hot air pipe 5 is provided with a mounting plate 52 for installing the heating pipes 51, and the heating pipe 51 is a U-shaped structure. , the mounting plate 52 is provided with a mounting position 521 for installing the heating pipe 51, the mounting position 521 is a regular hexagonal structure, and each of the heating tubes 51 is installed on the two opposite vertices of the mounting position 521 A cross installation structure is formed on the top, and the heating pipes 51 of the U-shaped structure are installed crosswise, and the three heating pipes 51 are connected in parallel, which greatly reduces the installation space of the heating pipes 51, reduces the volume of the dryer, and makes the same pipe diameter A plurality of heating pipes 51 can be installed in the hot air pipe 5 to improve the space utilization rate of the hot air pipe 5 and improve the heating efficiency of the dryer.

As a preferred embodiment, the top of the conical discharge head 6 is provided with an insertion groove 61 for connecting with the conical barrel 13, the conical barrel 13 is snapped into the insertion groove 61, and the conical outlet The side wall of the discharge head 6 is provided with an auxiliary channel 62 , and the auxiliary channel 62 communicates with the inner cavity of the tapered discharge head 6 .

As a preferred embodiment, the outer wall of the hot air pipe 5 is fixedly connected with a control box 9 for controlling the operation of the dryer. The control box 9 is connected to the fan 4 and the heating pipe 51. Connected in parallel, the control box 9 is provided with a power supply voltage stabilization circuit to make the operation of the dryer more stable, and a temperature sensor and a humidity sensor are arranged on the inner wall of the barrel body 1, and the temperature sensor and the humidity sensor are connected to the circuit signal of the control box 9. connect.

As a preferred embodiment, a bracket 10 is fixedly installed below the tapered bucket 13, the bracket 10 is fixedly connected to the side wall of the tapered bucket 13, and the bottom of the bracket 10 is evenly distributed with multiple anti-skid grooves 101, The installation of the dryer is more stable through the structural arrangement of the anti-slip groove 101 at the bottom of the bracket 10 .

As a preferred embodiment, the dust collection box 3 is provided with a dust collection net 31, a dust collection chamber 32 is provided below the dust collection net 31, and an outlet for dust removal is provided below the dust collection chamber 32. 33. By setting the dust collection box 3 in front of the air inlet of the fan 4, the hot air passes through the dust collection box 3 from the barrel body 1 to remove dust and then enters the fan 4 and the hot air pipe 5, so that the hot air entering the fan 4 and the hot air pipe 5 All are clean, will not affect the normal operation of the fan 4 and the hot air pipe 5, indirectly prolong the service life of the fan 4 and the hot air pipe 5, and reduce the failure rate of the dryer.

The above descriptions are only preferred embodiments of the utility model, as long as the technical solutions to achieve the purpose of the utility model by basically the same means are within the scope of protection of the utility model.

Claims (6)

1. A dryer with hot air circulation, characterized in that it includes a barrel body (1), an air guide pipe (2) arranged on the top of the barrel body (1), a dust collection box (3) for cleaning hot air, A fan (4) for hot air circulation, a hot air pipe (5) for gas heating, the barrel body (1), air duct (2), dust box (3), fan (4), The hot air pipes (5) are connected in turn to form a hot air circulation channel. The barrel body (1) includes a drying barrel (11), a barrel cover (12) arranged above the drying barrel (11), and a barrel cover (12) arranged at the bottom of the drying barrel (11). Conical barrel (13), the lid (12) is hinged with the drying barrel (11), the lid (12) is provided with a connector (121) for connecting the air duct (2), the The connecting head (121), the drying barrel (11), and the conical barrel (13) are sequentially connected. The bottom of the conical barrel (13) is provided with a conical discharge head (6), and the conical discharge head ( 6) It communicates with the tapered barrel (13), the barrel body (1) is filled with insulation cotton between the outer wall and the inner wall, and the outer wall of the air guide pipe (2) hot air pipe (5) is provided with an insulation layer, The inner wall of the tapered barrel (13) is fixed with an annular hollow tube (7), and several hot air nozzles (8) are arranged on the annular hollow tube (7). The hot air tube (5), The annular hollow pipe (7) and the hot air spray head (8) are connected in sequence, the hot air spray head (8) is arranged obliquely upward, the outer wall of the annular hollow pipe (7) is attached to the inner wall of the tapered barrel (13), The hot air pipe (5) is provided with three heating pipes (51), and the end of the hot air pipe (5) is provided with a mounting plate (52) for installing the heating pipes (51), and the heating pipes ( 51) is a U-shaped structure, and the installation plate (52) is provided with an installation position (521) for installing the heat pipe (51). The installation position (521) is a regular hexagonal structure, and each of the The heating pipes (51) are all installed on the two opposite vertices of the installation position (521) to form a cross installation structure, and the heating pipes (51) of the U-shaped structure are installed in a cross manner, and the three heating pipes (51) are connected in parallel . 2. A dryer with hot air circulation according to claim 1, characterized in that: the top of the conical discharge head (6) is provided with a socket for connecting with the conical barrel (13) ( 61), the conical barrel (13) is clamped with the insertion groove (61), the side wall of the conical discharge head (6) is provided with an auxiliary channel (62), and the auxiliary channel (62) is connected to the The inner cavity of the tapered discharge head (6) is connected. 3. A dryer with hot air circulation according to claim 1, characterized in that: the outer wall of the hot air pipe (5) is fixedly connected with a control box (9) for controlling the operation of the dryer, and the control box (9) The box (9) is electrically connected to the fan (4) and the heating pipe (51), and the fan (4) is connected in parallel to the heating pipe (51). 4. A dryer with hot air circulation according to claim 1, characterized in that: a support (10) is fixedly installed under the conical barrel (13), and the support (10) is connected with the conical barrel The side walls of (13) are fixedly connected, and there are multiple anti-slip grooves (101) evenly distributed on the bottom of the bracket (10). 5. A dryer with hot air circulation according to claim 1, characterized in that: the dust collection box (3) is provided with a dust collection net (31), and the bottom of the dust collection net (31) A dust collection chamber (32) is provided, and an outlet (33) for dust removal is provided below the dust collection chamber (32). 6 . The dryer with hot air circulation according to claim 1 , characterized in that: the air guide pipe ( 2 ) is provided with an air volume regulating device ( 21 ).