CN211717103U

CN211717103U - Drying device for environment-friendly straw

Info

Publication number: CN211717103U
Application number: CN201922492215.0U
Authority: CN
Inventors: 王学珠; 张爱丽
Original assignee: Jinan Huinuo Machinery Technology Co ltd
Current assignee: Jinan Huinuo Machinery Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-20
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a drying device for an environment-friendly suction pipe, which is characterized by comprising a frame, a drying bin and a conveying plate chain which are arranged on the frame, a heating unit and an air supply unit which are arranged in the drying bin, and a circulating unit which is arranged on the drying bin; the drying bin provides a drying occasion for the suction pipe, and the conveying plate chain horizontally penetrates through the drying bin to convey the suction pipe for drying; the heating unit is arranged below the conveying plate chain; the air supply unit is arranged above the conveying plate chain or/and below the heating unit, and the air direction of the air supply unit is arranged towards the direction of the air outlet; the circulation unit comprises a circulation pipe, wherein a first tail end of the circulation pipe is connected to the upper part of the drying bin, and a second tail end of the circulation pipe is connected to the lower part of the drying bin. This application drying device can all comparatively stable dry occasion of temperature and humidity for the straw provides for the straw is difficult for chapping in drying process, thereby has guaranteed the straw quality.

Description

Drying device for environment-friendly straw

Technical Field

The utility model relates to a straw processing field especially relates to a drying device for environmental protection straw.

Background

The environment-friendly straw is a degradable straw product produced by adopting raw materials such as starch and the like, and the production of the degradable environment-friendly straw can reduce the pollution of plastic products to the environment to a great extent.

In the production process of the environment-friendly straw, the production steps of extrusion, cooling, drying and the like are required in sequence, so that the environment-friendly straw with certain hardness and lower water absorption is obtained when the environment-friendly straw is used. The environment-friendly straw drying device is usually an ordinary straw drying device, and the device is generally open, the environment for producing the environment-friendly straw by using the open type drying device is poor, and the conditions such as temperature and humidity required by straw drying cannot be guaranteed, so that the straw is easy to chap when being dried or packaged and used after being dried, and the quality and the yield of the straw are further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a remedy prior art not enough, provide an environment-friendly is drying device for straw to solve or alleviate one or more technical problem among the prior art at least, or provide a profitable selection at least.

An environmental protection drying device for straw, includes:

a frame;

the drying bin is arranged on the rack and used as a straw drying occasion, and the top of the drying bin is distributed with air outlet holes so as to ensure that the temperature and the humidity in the drying bin are in a balance range;

locate the conveying plate chain in the frame, conveying plate chain level runs through dry storehouse setting for carry extrusion's straw to dry storehouse and carry out the drying, conveying plate chain surface is comparatively smooth, is difficult for puncturing the straw and causes the damage to it, has guaranteed the straw quality. Wherein, the conveying plate chain is driven by a transmission motor arranged on the frame.

And the heating unit is arranged in the drying bin and is mainly used for providing proper drying temperature for the drying bin, and the heating unit is arranged below the conveying plate chain so as to dry the suction pipe conveyed to the drying bin through the hole on the conveying plate chain.

Locate the air supply unit in the dry storehouse, the air supply unit is located the top of transfer plate chain or/and heating unit's below, the wind direction of air supply unit sets up towards the venthole direction, and the setting of air supply unit can increase the air current degree of flow in the dry storehouse, helps keeping dry storehouse internal heat and moisture homodisperse to temperature and humidity are comparatively even stable in having guaranteed dry storehouse.

Locate the circulation unit on the dry storehouse, the circulation unit includes the circulating pipe, the first end of circulating pipe is connected in dry storehouse upper portion, the second end of circulating pipe is connected in the lower part of dry storehouse, and the circulating pipe has communicated upper and lower space in dry storehouse to make two spaces form the convection current, so, can be better keep in the dry storehouse everywhere humidity is even stable.

Furthermore, the first tail end of the circulating pipe is connected to the top of the drying bin, so that the convection velocity of the upper space and the lower space can be increased to a certain extent, and the uniformity of the humidity in the drying bin can be further ensured.

Further, dry storehouse has front end and the rear end that sets up along the straw direction of delivery, the first end of circulating pipe is close to dry storehouse front end and sets up, and the second end is close to dry storehouse rear end and sets up, so set up the humidity that can adjust dry storehouse front end and rear end.

Further, for temperature and humidity in the dry storehouse of more accurate control, drying device is still including observing and controling the unit, observe and control the unit and include PLC controller, temperature sensor and humidity transducer link to each other with the input pin of PLC controller, heating unit links to each other with the output pin of PLC controller, and wherein, temperature sensor and humidity transducer are used for measuring humidity and temperature in the dry storehouse to with temperature and humidity signal feedback to PLC controller, when temperature or/and humidity surpass its settlement range, accessible PLC controller control heating unit adjustment heating temperature, with humidity and temperature in the control dry storehouse. Wherein, the PLC controller can adopt a controller with model number 6ES 7134-4 MB02-0AB0 of Siemens manufacturer.

Further, the top in dry storehouse is equipped with an air vent regulating part, the air vent regulating part drives in order to adjust the venthole size through a actuating mechanism, actuating mechanism with the output pin of PLC controller links to each other, and when temperature or/and humidity are unusual, can also work through PLC controller control drive mechanism to control air vent regulating part and adjust the venthole size.

Specifically, one of the structures of the air hole adjusting piece is as follows: the air hole adjusting piece comprises a grating plate which is arranged at the top of the drying bin in a sliding mode, a blocking piece matched with the air outlet hole is fixedly arranged in the grating plate, and the driving mechanism can adopt a telescopic cylinder.

Further, still be equipped with the mixed flow fan on the dry storehouse inside wall, its mainly used increases the interior air current torrent degree of dry storehouse to it is more even to realize everywhere temperature and humidity in the dry storehouse.

Further, the top of transfer plate chain is equipped with first air supply unit, first air supply unit is last draught fan, heating unit's below is equipped with second air supply unit, second air supply unit is lower ventilation blower, so sets up, and realization heating unit steam dispersion that can be better guarantees the better drying effect of straw.

Further, the circulating pipe is being equipped with the ponding chamber near second terminal department, the external drain pipe in bottom in ponding chamber, be equipped with the drain valve on the drain pipe, because gaseous precooling in the circulating pipe can the water droplet condense, consequently, set up the ponding chamber and can collect the comdenstion water temporarily, avoid its direct inflow to influence dry humidity in the dry storehouse, the water of ponding intracavity can be discharged through drain pipe intermittent type.

Further, the heating unit is temperature adjustable's heater, and wherein, the heater setting is better with conveying plate chain complex plate-type, and the heater that forms the hot plate pattern is arranged for the heating pipe comparatively commonly, can realize the even drying of straw on the conveying plate chain.

The utility model adopts the above structure, the advantage that has is:

1. this application drying device can all comparatively stable dry occasion of temperature and humidity for the straw provides for the straw is difficult for chapping in drying process, thereby has guaranteed the straw quality.

2. This application drying device through observing and controling unit, gas pocket regulating part setting can be better to the temperature and the humidity in the dry storehouse control, and then guarantee that straw drying environment is stable suitable.

Drawings

Fig. 1 is a perspective schematic view of a drying device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of the air hole adjusting member connected to the drying chamber according to one embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the circulation tube and the drying chamber in one embodiment of the present invention;

fig. 4 is a schematic cross-sectional structure view of the drying chamber in the vertical conveying direction according to one embodiment of the present invention.

1. The device comprises a rack, 2, a drying bin, 3, a conveying plate chain, 4, a heating unit, 5, an air supply unit, 6, a circulating unit, 7, an air hole adjusting piece, 8, a driving mechanism, 9, a conveying motor, 10 and a mixed flow fan;

21. the air outlet hole 51, the first air supply unit 52, the second air supply unit 61, the circulating pipe 62, the water accumulation cavity 63, the drain pipe 64 and the drain valve.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1, in this embodiment, the drying device for an eco-friendly straw includes a frame 1, a drying chamber 2 and a conveyor chain 3 provided on the frame 1, a heating unit 4 and an air supply unit 5 provided in the drying chamber 2, and a circulation unit 6 provided on the drying chamber 2; wherein, the drying bin 2 is used as a straw drying occasion, and the air outlet 21 is distributed on the top of the drying bin 2, so that the temperature and the humidity in the drying bin 2 are in a balance range; the conveying plate chain 3 horizontally penetrates through the drying bin 2 and is used for conveying the extruded straws to the drying bin 2 for drying, the surface of the conveying plate chain 3 is smooth, the straws are not easy to puncture, and the quality of the straws is ensured; specifically, the suction pipes are conveyed by driving a conveying plate chain through a conveying motor 9. The heating unit 4 is mainly used for providing a proper drying temperature for the drying bin, and the heating unit 4 is arranged below the conveying plate chain 3 so as to dry the suction pipes conveyed to the drying bin 2 through the holes in the conveying plate chain 3; the air supply unit 5 is arranged below the heating unit 4, the wind direction of the air supply unit 5 is arranged towards the direction of the air outlet 21, and the arrangement of the air supply unit 5 can increase the air flow flowing degree in the drying bin 2, so that the uniform dispersion of heat and moisture in the drying bin 2 is facilitated, and the uniform and stable temperature and humidity in the drying bin 2 are ensured; the circulation unit 6 comprises a circulation pipe 61, a first end of the circulation pipe 61 is connected to the upper part of the drying bin 2, a second end of the circulation pipe 61 is connected to the lower part of the drying bin 2, and the circulation pipe 61 is communicated with the upper space and the lower space of the drying bin 2 and enables the two spaces to form convection, so that the humidity in each part of the drying bin 2 can be kept uniform and stable better. This application drying device can all comparatively stable dry occasion of temperature and humidity for the straw provides for the straw is difficult for chapping in drying process, thereby has guaranteed the straw quality.

As shown in fig. 1, the first end of the circulation pipe 61 is connected to the top of the drying chamber 2, so that the convection velocity of the upper and lower spaces can be increased to some extent, which helps to further ensure uniform humidity in the drying chamber.

As shown in fig. 1, the drying chamber 2 has a front end and a rear end arranged along the straw conveying direction, the first end of the circulating pipe 61 is arranged near the front end of the drying chamber 2, and the second end is arranged near the rear end of the drying chamber 2, so that the relative humidity balance between the front end and the rear end of the drying chamber can be adjusted.

Understandably, in one of them embodiment, for temperature and humidity in the dry storehouse 2 of more accurate control, drying device still includes the observing and controlling unit, the observing and controlling unit includes PLC controller, temperature sensor and humidity transducer link to each other with the input pin of PLC controller, heating unit 4 links to each other with the output pin of PLC controller, and wherein, temperature sensor and humidity transducer are used for measuring humidity and the temperature in the dry storehouse to with temperature and humidity signal feedback to the PLC controller, when temperature or/and humidity surpassed its settlement range, accessible PLC controller control heating unit 4 adjustment heating temperature, with humidity and temperature in the control dry storehouse 2.

As shown in fig. 2, in one embodiment, an air hole adjusting part 7 is disposed at the top of the drying chamber 2, the air hole adjusting part is driven by a driving mechanism 8 to adjust the size of the air hole, the driving mechanism 8 is connected to an output pin of the PLC controller, and when the temperature or/and humidity is abnormal, the driving mechanism 8 can be controlled by the PLC controller to operate, so as to control the air hole adjusting part to adjust the size of the air hole.

Specifically, one of the air hole adjusting pieces 7 has the following structure: the air hole adjusting piece 7 comprises a grid plate 71 arranged at the top of the drying bin 2 in a sliding manner, and the sliding is realized by matching a sliding groove at the top of the drying bin with a sliding block at the bottom of the grid plate; a baffle plate 72 matched with the air outlet 21 is fixedly arranged in the grating plate 71, wherein the driving mechanism 8 can adopt a telescopic cylinder.

As shown in fig. 3, in one embodiment, the circulation pipe 61 is provided with a water accumulation cavity 62 near the second end, the bottom of the water accumulation cavity 62 is externally connected with a drain pipe 63, a drain valve 64 is provided on the drain pipe 63, because water drops are condensed due to precooling of the gas in the circulation pipe 61, the water accumulation cavity 62 is configured to temporarily collect condensed water, the condensed water is prevented from directly flowing into the drying chamber 2 to affect the drying humidity, and the water in the water accumulation cavity 62 can be intermittently discharged through the drain pipe 63.

As shown in fig. 4, in one embodiment, a mixed flow fan 10 is further disposed on an inner side wall of the drying chamber 2, and is mainly used for increasing the degree of air flow turbulence in the drying chamber, so as to achieve more uniform temperature and humidity throughout the drying chamber.

As shown in fig. 4, in one embodiment, a first air supply unit 51 may be disposed above the conveyor chain 3, the first air supply unit 51 is an upper induced fan, a second air supply unit 52 is disposed below the heating unit 4, and the second air supply unit 52 is a lower induced fan.

In one embodiment, the heating unit is a temperature-adjustable heater, wherein the heater is preferably arranged to be equal to the width of the conveyor chain, so that the straws on the conveyor chain can be uniformly dried.

The above-mentioned embodiments can not be regarded as the limitation to the protection scope of the present invention, and to those skilled in the art, it is right that any alternative improvement or transformation made by the embodiments of the present invention all fall within the protection scope of the present invention. The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides an environmental protection drying device for straw which characterized in that includes:

a frame;

the drying bin is arranged on the rack, and air outlet holes are distributed on the top of the drying bin;

the conveying plate chain is arranged on the rack and horizontally penetrates through the drying bin;

the heating unit is arranged in the drying bin and is arranged below the conveying plate chain;

the air supply unit is arranged above the conveying plate chain or/and below the heating unit, and the wind direction of the air supply unit is arranged towards the direction of the air outlet;

the circulation unit is arranged on the drying bin and comprises a circulation pipe, the first tail end of the circulation pipe is connected to the upper portion of the drying bin, and the second tail end of the circulation pipe is connected to the lower portion of the drying bin.

2. The drying apparatus for an eco-friendly straw according to claim 1, wherein a first end of the circulation pipe is connected to a top of the drying compartment.

3. The drying apparatus for an environmentally friendly straw according to claim 2, wherein the drying chamber has a front end and a rear end arranged along a straw conveying direction, and the first end of the circulation tube is disposed near the front end of the drying chamber and the second end is disposed near the rear end of the drying chamber.

4. The drying device for the environmental protection straw according to claim 1, further comprising a measurement and control unit, wherein the measurement and control unit comprises a PLC controller, a temperature sensor and a humidity sensor, the temperature sensor and the humidity sensor are connected with an input pin of the PLC controller, and the heating unit is connected with an output pin of the PLC controller.

5. The drying device for the environmental protection suction pipe as claimed in claim 4, wherein an air hole adjusting piece is arranged at the top of the drying bin, the air hole adjusting piece is driven by a driving mechanism to adjust the size of the air outlet hole, and the driving mechanism is connected with an output pin of the PLC.

6. The drying device for the environmental protection suction pipe as claimed in claim 5, wherein the air hole adjusting member comprises a grid plate slidably disposed at the top of the drying chamber, and a blocking piece fitted with the air outlet hole is fixedly disposed in the grid plate.

7. The drying device for the environmental protection suction pipe according to claim 1, wherein a mixed flow fan is further arranged on the side wall of the drying bin.

8. The drying device for the environmental protection draft tube according to claim 1, wherein a first air supply unit is arranged above the conveyor chain, the first air supply unit is an upper induced draft fan, a second air supply unit is arranged below the heating unit, and the second air supply unit is a lower ventilator.

9. The drying device for the environmental protection suction pipe according to claim 1, wherein the circulation pipe is provided with a water accumulation cavity near the second end, the bottom of the water accumulation cavity is externally connected with a drain pipe, and the drain pipe is provided with a drain valve.

10. The drying apparatus for an eco-friendly straw according to claim 1 or 8, wherein the heating unit is a temperature-adjustable heater.