CN217929450U

CN217929450U - Mesh belt type dryer with heat recovery function

Info

Publication number: CN217929450U
Application number: CN202220638345.XU
Authority: CN
Inventors: 陈俊年; 项聪; 熊丽; 谯延海; 任强; 张静; 蒋玮
Original assignee: Sichuan Nanchong Huajing Zhinong Agricultural Equipment Manufacturing Co ltd
Current assignee: Sichuan Nanchong Huajing Zhinong Agricultural Equipment Manufacturing Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-11-29
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses a guipure formula drying-machine with heat recovery function, including stoving case and the heat recovery fan that has the drying chamber, the heat recovery fan includes exhaust pipe, the aspiration channel of an inlet end and drying chamber intercommunication, exhaust end and drying chamber intercommunication, both ends arrange in exhaust pipe and the intraductal heat exchange structure of aspiration channel, set up at the intraductal first fan of exhaust and set up the second fan in the aspiration channel, be provided with the check valve that only allows gas to circulate from the inlet end to the exhaust end in exhaust pipe and the aspiration channel respectively. The hot air outflow in the drying chamber can be effectively avoided after the fan is stopped.

Description

Mesh belt type dryer with heat recovery function

Technical Field

The utility model belongs to the technical field of the guipure formula drying-machine, specifically relate to a guipure formula drying-machine with heat recovery function.

Background

The mesh belt type dryer is a drying device which uses a steel mesh as a transmission belt to carry materials for continuous drying. The transmission belt is meshed, so that the drying machine is most suitable for drying various regular or irregular blocky objects (such as coal blocks, various mineral powder, food, vegetables and the like).

In order to realize heat recovery, a heat recovery fan is arranged on the existing mesh belt type dryer and comprises an exhaust pipe, an air suction pipe and a heat exchange device arranged between the exhaust pipe and the air suction pipe, fans are respectively arranged at the air outlet ends of the exhaust pipe and the air suction pipe, the air exhaust end of the exhaust pipe and the air inlet end of the air suction pipe are arranged outside the mesh belt type dryer, and the air inlet end of the exhaust pipe and the air outlet end of the air suction pipe are communicated with a drying chamber of the mesh belt type dryer.

Although above-mentioned structure of sampling can fine realization heat recovery utilize when realizing the humidity control in the guipure formula drying-machine drying-chamber, nevertheless, above-mentioned structure of sampling, after the fan shut down, hot-air in the drying-chamber can follow exhaust pipe, aspiration channel outward flow, leads to the temperature reduction in the drying-chamber, makes drying efficiency, stoving required time and product quality receive the influence.

SUMMERY OF THE UTILITY MODEL

In order to solve the phenomenon that the interior steam of drying chamber outflows after current guipure formula drying-machine fan shuts down, the utility model provides a guipure formula drying-machine with heat recovery function, it can effectively avoid the interior steam of drying chamber to outflow after the fan shuts down.

The utility model discloses a following technical scheme realizes:

the utility model provides a mesh belt type dryer with a heat recovery function, which comprises a drying box with a drying chamber and a heat recovery fan,

the heat recovery fan comprises an exhaust pipe, an exhaust end and an air suction pipe, wherein the exhaust pipe is communicated with the drying chamber, the air suction pipe is communicated with the drying chamber, the two ends of the exhaust pipe are arranged in a heat exchange structure in the exhaust pipe and the air suction pipe, a first fan is arranged in the exhaust pipe, and a second fan is arranged in the air suction pipe, and the exhaust pipe and the air suction pipe are respectively internally provided with a one-way valve which only allows gas to flow from the intake end to the exhaust end.

This scheme is through setting up a check valve on the exhaust pipe and the aspiration channel of heat recovery fan, and when arbitrary fan stop work, under the effect of check valve, the gas in the drying chamber can not be discharged through the aspiration channel, because the pressure of check valve both sides is less than it and opens the threshold value on the exhaust pipe, the gas in the drying chamber can not discharge through the aspiration channel yet simultaneously, effectively avoids can effectively avoiding the phenomenon of the interior steam outflow of drying chamber after the fan shuts down.

In a possible design, the first fan and the second fan are respectively arranged at the exhaust ends of the exhaust pipe and the air suction pipe, and the one-way valve is respectively arranged at the air inlet ends of the exhaust pipe and the air suction pipe.

In one possible design, an adsorption structure is arranged in the channel between the air inlet end of the air suction pipe and the heat exchange structure.

This scheme realizes filtration through set up adsorption structure in the aspiration channel, improves the quality that gets into the interior gas of drying chamber, improves the oven-dry mass of product.

In a possible design, the aspiration channel includes first pipe fitting and with first pipe fitting threaded connection's second pipe fitting, adsorption structure arrange in first pipe fitting just be provided with in the first pipe fitting and be used for carrying on spacing first limit structure to adsorption structure, heat exchange structure's one end is arranged in the second pipe fitting, be provided with in the second pipe fitting and be used for carrying on spacing second limit structure to adsorption structure.

This scheme sets up the aspiration channel into two pipe fitting structures of detachable, is convenient for realize adsorption structure's maintenance and change. First limit structure and second limit structure carry on spacingly from adsorption structure both sides to it, guarantee the stability of its structure.

In one possible design, the first and second limiting structures form a ring structure.

The limiting structure with the annular structure can improve the reliability of limiting.

In one possible design, a dehumidification structure is arranged in the air suction pipe.

High temperature in the drying chamber realizes the drying to the product material, and the gas that gets into is great if the moisture, will influence drying quality certainly, and this scheme reduces the humidity that gets into the interior gas of drying chamber through setting up dehumidification structure, improves the drying quality of material product.

In one possible design, the dehumidification structure comprises a plurality of layers of water absorption nets and a fixing frame for fixing the water absorption nets, each layer of water absorption net is in a cylindrical shape with openings at two ends, and the plurality of layers of water absorption nets are different in diameter and are coaxially arranged.

This scheme adopts the multilayer of becoming the tube-shape net structure that absorbs water, under the prerequisite that does not influence air velocity, improves the effect that absorbs water.

In one possible design, the fixing frame comprises a plurality of fixing rings which are respectively fixed at the end parts of the water absorption net, and a connecting support sheet is arranged between the fixing rings.

This scheme adopts solid fixed ring structure to realize the support that absorbs water the net, strengthens its structural stability.

In one possible design, a plurality of layers of drying channels are arranged in the drying chamber. The drying effect on the materials can be improved by adopting the multilayer channels.

Compared with the prior art, the utility model, following advantage and beneficial effect have at least:

1. the utility model discloses a set up a check valve on the exhaust pipe and the aspiration channel of heat recovery fan, effectively avoid can effectively avoiding the phenomenon of the interior steam outflow of drying chamber after the fan shuts down.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the mesh belt type dryer of the present invention;

FIG. 2 is a schematic view of the heat recovery fan of the present invention;

fig. 3 is a schematic structural diagram of the dehumidifying structure of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

It should be understood that, for the term "and/or" as may appear herein, it is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, B exists alone, and A and B exist at the same time; for the term "/and" as may appear herein, which describes another associative object relationship, it means that two relationships may exist, e.g., a/and B, may mean: a exists independently, and A and B exist independently; in addition, for the character "/" that may appear herein, it generally means that the former and latter associated objects are in an "or" relationship.

It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may not be shown in unnecessary detail to avoid obscuring the examples.

Example 1

As shown in fig. 1, the utility model discloses a mesh belt type dryer with heat recovery function in the first aspect, including drying box 1 and heat recovery fan 2 that have the drying chamber. Specifically, the drying box 1 can be realized by adopting any one of the existing structures, and is not limited here, and preferably, a multilayer drying channel is arranged in the drying chamber.

As shown in fig. 1 and 2, the heat recovery fan 2 includes an exhaust duct 21 having an air inlet end communicated with the drying chamber, an air suction duct 22 having an air outlet end communicated with the drying chamber, a heat exchange structure 23 having two ends disposed in the exhaust duct 21 and the air suction duct 22, a first fan 24 disposed in the exhaust duct 21, and a second fan 25 disposed in the air suction duct 22, wherein the exhaust duct 21 and the air suction duct 22 are respectively provided with a check valve 3 for allowing air to flow from the air inlet end to the air outlet end. The operation principle of the heat recovery fan is the same as that of the existing structure, and the details are not repeated here. After the one-way valve is added, the fan stops rotating, and gas in the drying chamber cannot be discharged through the suction pipe under the action of the one-way valve. Aiming at the air exhaust pipe channel, because the fan is stopped, the pressure on two sides of the one-way valve on the air exhaust pipe is smaller than the opening threshold value of the one-way valve, and the channel can not be opened; and aiming at the channel of the air suction pipe, because the fan is stopped, the pressure on two sides of the one-way valve on the air suction pipe is smaller than the opening threshold value of the one-way valve, the channel can not be opened, and the phenomenon that hot air in the drying chamber flows out after the fan is stopped is effectively avoided.

On the basis of the above structure, preferably, the first fan 24 and the second fan 25 are respectively disposed at the exhaust ends of the exhaust duct 21 and the air suction duct 22, and the check valve 3 is respectively disposed at the air inlet ends of the exhaust duct 21 and the air suction duct 22. The check valve and the fan are respectively arranged at two ends of the pipeline, so that the operation of the fan cannot influence the operation of the check valve even if the setting is facilitated.

Example 2

On the basis of the structure of the above embodiment 1, this embodiment discloses an optimized structure, that is, an adsorption structure is disposed in the channel between the air inlet end of the air suction pipe 22 and the heat exchange structure 23.

Specifically, after the adsorption structure is arranged, the air suction pipe 22 comprises a first pipe fitting and a second pipe fitting in threaded connection with the first pipe fitting, the adsorption structure is arranged in the first pipe fitting and is provided with a first limiting structure 26 for limiting the adsorption structure in the first pipe fitting, one end of the heat exchange structure 23 is arranged in the second pipe fitting, and the second pipe fitting is provided with a second limiting structure 27 for limiting the adsorption structure in the second pipe fitting. The first limit structure 26 and the second limit structure 27 form a ring structure. The adsorption structure is in the form of a sheet and is mounted on the diametric plane of the aspiration channel 22. The adsorption structure is only required to be a conventional dust adsorption sheet.

Example 3

On the basis of the structure of any of the above embodiments, this embodiment discloses an optimized structure, that is, a dehumidification structure is arranged in the air suction pipe 22.

The same as embodiment 2, at this time, the air suction pipe 22 includes a first pipe and a second pipe in threaded connection with the first pipe, the dehumidification structure includes multiple layers of water absorption nets 41 and a fixing frame for fixing the water absorption nets 41, each layer of water absorption net is a cylinder with openings at two ends, and the multiple layers of water absorption nets are different in diameter and are coaxially arranged. The fixing frame comprises a plurality of fixing rings 42 which are respectively fixed at the end parts of the water absorption net, and a connecting support sheet 43 is arranged between the fixing rings. The dehumidification structure is arranged coaxially with the air suction pipe 22. The water-absorbing net can be realized by adopting the existing structure, and the detailed description is not needed.

If only the dehumidifying structure is arranged on the basis of the structure of the embodiment 1, a limiting structure can be respectively arranged on the first pipe fitting and the second pipe fitting to realize the mounting and limiting of the dehumidifying structure.

If the dehumidifying structure is added to the structure of embodiment 2, the dehumidifying structure can be installed between the air inlet end of the air suction pipe 22 and the adsorption structure. At this time, besides the first limit structure 26 and the second limit structure 27, a third limit structure 28 needs to be further provided, the outer diameters of the first limit structure 26, the second limit structure 27 and the third limit structure 28 are equal to the inner diameters of the first pipe fitting and the second pipe fitting, the air inlet end of the first pipe fitting is a structure which is gradually increased in caliber from the inlet to the inner setting and is finally maintained, that is, as shown in fig. 2, the inner diameter of the first limit structure 26 is slightly larger than the outer diameter of the fixing ring with the largest diameter in the dehumidification structure, the third limit structure 28 is a movable ring, the third limit structure can be taken out of the first pipe fitting, the first pipe fitting is placed between the dehumidification structure and the adsorption structure, the dehumidification structure and the adsorption structure are isolated, the dehumidification structure is prevented from being damaged, and the inner diameter of the third limit structure 28 is smaller than the outer diameter of the fixing ring with the largest diameter in the dehumidification structure, so that the limit of the dehumidification structure can be realized.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: modifications may be made to the embodiments described above, or equivalents may be substituted for some of the features described. Such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides a guipure formula drying-machine with heat recovery function, includes drying box (1) and heat recovery fan (2) that have the drying chamber, its characterized in that:

the heat recovery fan (2) comprises an exhaust pipe (21) with an air inlet end communicated with the drying chamber, an air suction pipe (22) with an air outlet end communicated with the drying chamber, a heat exchange structure (23) with two ends arranged in the exhaust pipe (21) and the air suction pipe (22), a first fan (24) arranged in the exhaust pipe (21) and a second fan (25) arranged in the air suction pipe (22), wherein the exhaust pipe (21) and the air suction pipe (22) are respectively provided with a one-way valve (3) which only allows air to flow from the air inlet end to the air outlet end; and an adsorption structure is arranged in a channel between the air inlet end of the air suction pipe (22) and the heat exchange structure (23).

2. The mesh belt dryer with the heat recovery function according to claim 1, wherein the first fan (24) and the second fan (25) are respectively disposed at the exhaust ends of the exhaust duct (21) and the air suction duct (22), and the check valve (3) is respectively disposed at the air inlet ends of the exhaust duct (21) and the air suction duct (22).

3. The mesh belt dryer with the heat recovery function according to claim 1, wherein the air suction pipe (22) comprises a first pipe and a second pipe in threaded connection with the first pipe, the adsorption structure is disposed in the first pipe, a first limiting structure (26) for limiting the adsorption structure is disposed in the first pipe, one end of the heat exchange structure (23) is disposed in the second pipe, and a second limiting structure (27) for limiting the adsorption structure is disposed in the second pipe.

4. The mesh belt dryer with heat recovery function as claimed in claim 3, characterized in that the first limit structure (26) and the second limit structure (27) are in a ring structure.

5. The mesh belt dryer with heat recovery function as claimed in claim 1, wherein a dehumidifying structure is provided in the air suction duct (22).

6. The mesh-belt dryer with the heat recovery function as claimed in claim 5, wherein the dehumidifying structure comprises a plurality of layers of water-absorbing meshes and a fixing frame for fixing the water-absorbing meshes, each layer of water-absorbing meshes is in a cylindrical shape with two open ends, and the plurality of layers of water-absorbing meshes are different in diameter and are coaxially arranged.

7. The mesh belt dryer with the heat recovery function as claimed in claim 6, wherein the fixing frame comprises a plurality of fixing rings respectively fixed on the ends of the water-absorbing mesh, and a connection support sheet is arranged between the fixing rings.

8. The mesh belt dryer with the heat recovery function as claimed in claim 1, wherein a plurality of layers of drying channels are arranged in the drying chamber.