CN215337556U - Fodder drying-machine - Google Patents

Abstract

The utility model relates to a feed dryer, which comprises a plurality of drying cavities arranged side by side, wherein an air inlet channel and an air outlet channel are respectively arranged on two sides of each drying cavity; negative pressure cleaning device, including setting up negative pressure unit, collecting pipe, a plurality of dust collecting vat, wherein the collecting pipe with negative pressure unit intercommunication, it is a plurality of the dust collecting vat set up in the bottom below in stoving chamber and with a plurality of the sealed intercommunication of air outlet duct one-to-one, it is a plurality of the dust collecting vat respectively with the collecting pipe intercommunication, install the valve in the dust collecting vat. Negative pressure cleaning device once or clearance many times to the inside dust of fodder drying-machine, the dust collecting vat sets up in the outside in stoving chamber, compares with the mode that adopts scraper blade structure among the conventional art, and it is more convenient all to install and maintain the time, and the clearance effect is also better. And the dust collecting tank is arranged outside the drying cavity, so that the inner space of the drying cavity is not occupied, and the arrangement of each structural component in the drying cavity is utilized.

Description

Fodder drying-machine

Technical Field

The utility model relates to the technical field of feed processing equipment, in particular to a feed dryer.

Background

In a traditional horizontal feed dryer, circulating air enters a drying cavity from one side of the drying cavity, passes through a material layer and then is collected at the other side of the drying cavity. One part of the collected wet air enters the circulating system, and the other part of the collected wet air is discharged out of the dryer. Due to the structural characteristics, when dust is mixed with and even the internal airflow of the particles does circular motion, the dust is settled under the action of dead weight and falls onto the bottom plate of the drying cavity. The dust needs to be cleaned regularly, and if the dust is not cleaned, the service performance of the dryer can be seriously influenced.

In the conventional art, some dryers are required to manually dry dust on a bottom plate of a chamber periodically. Other dryers are equipped with scraper-type powder cleaning devices, however, although the scraper-type powder cleaning devices can basically realize the function of cleaning dust, more residues are easily left on the scraper and cannot be cleaned, and if the humidity of the dust is high, the dust can mildew after a long time; meanwhile, different dust formulas can cause cross contamination. In addition, in practical production, in order to improve drying efficiency, the dryer often includes a plurality of drying chambers arranged side by side. If adopt scraper blade formula's clearance mode to clear up, need each stoving chamber to set up a scraper blade structure respectively, installation and maintenance cost are all higher.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a fodder drying machine aiming at the problems of incomplete cleaning and large installation space of the scraper blade structure in the traditional fodder drying machine.

A fodder drying-machine, including multiple drying chambers set up side by side, both sides of every drying chamber have air inlet duct and air outlet duct separately; negative pressure cleaning device, including setting up negative pressure unit, collecting pipe, a plurality of dust collecting vat, wherein the collecting pipe with negative pressure unit intercommunication, it is a plurality of the dust collecting vat set up in the bottom below in stoving chamber and with a plurality of the sealed intercommunication of air outlet duct one-to-one, it is a plurality of the dust collecting vat respectively with the collecting pipe intercommunication, install the valve in the dust collecting vat.

Above-mentioned fodder drying-machine, usable negative pressure cleaning device carries out once or clearance many times to the inside dust of fodder drying-machine, and the dust collecting vat sets up in the outside in stoving chamber, compares with the mode that adopts the scraper blade structure among the conventional art, and it is all more convenient all to install during with the maintenance, and the clearance effect is also better. And, the dust collecting groove sets up in the outside in stoving chamber, does not occupy the inner space in stoving chamber, compares with the conventional art, and under the same height dimension, the stoving chamber of this embodiment more does benefit to the structural design of conveyer belt.

In one embodiment, the dust collecting tank is detachably mounted at the bottom of the drying cavity and is communicated with the air outlet channel.

In one embodiment, the dust collection tank is connected to the collection pipe by a hose.

In one embodiment, the dust collection tank is supported by the collection pipe.

In one embodiment, an air hammer is arranged outside the dust collecting tank.

In one embodiment, the dust collecting groove is flexibly connected with the air outlet channel.

In one embodiment, the dust collecting tank is connected with the air outlet channel through a corrugated pipe.

In one embodiment, the negative pressure unit comprises a cyclone and a dust removal fan, the cyclone comprises an air inlet, an air outlet and a dust outlet, the air inlet is communicated with the collecting pipe, and the air outlet is communicated with the dust removal fan.

In one embodiment, the dust removal fan is connected with an exhaust pipe.

In one embodiment, the feed dryer further comprises a case arranged at the top of the drying cavity, an air inlet channel and a moisture discharging channel which are communicated with each other are arranged in the case, a circulating fan is installed in the air inlet channel, the moisture discharging channel is provided with a moisture discharging port, an outlet of the air inlet channel is communicated with the air inlet channel, and an outlet channel is communicated with the moisture discharging channel.

Drawings

Fig. 1 is a partial structural view of a fodder dryer according to an embodiment of the present invention.

Fig. 2 is a schematic view of a circulation air path of the fodder dryer shown in fig. 1.

Fig. 3 is a schematic structural view of a negative pressure cleaning device in the feed dryer shown in fig. 1.

The relevant elements in the figures are numbered correspondingly as follows:

100. a feed dryer;

10. a drying cavity; 110. a conveyor belt;

20. an air inlet duct;

30. an air outlet channel;

40. a chassis; 410. an air intake passage; 411. an outlet; 420. a moisture removal channel; 421. a moisture removal port; 430. a circulating fan; 440. a heat exchanger;

50. a negative pressure cleaning device; 510. a negative pressure unit; 511. a saxolone; 5112. an air inlet; 5113. an air outlet; 5114. a dust outlet; 512. a dust removal fan; 513. a connecting pipe; 514. an exhaust duct; 520. a collection pipe; 530. a dust collecting tank; 540. a valve; 550. a branch pipe; 560. and (5) air hammering.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, 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 an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The utility model provides a feed dryer, aiming at the problems of incomplete cleaning, large occupied space inside the dryer and the like of a scraper structure in the traditional feed dryer. Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a partial structure of a fodder dryer 100 of an embodiment is illustrated. As shown in fig. 2, the circulation duct of the fodder dryer 100 is illustrated. The fodder dryer 100 includes a plurality of drying chambers 10 arranged side by side, and an air inlet duct 20 and an air outlet duct 30 are respectively provided at both sides of each drying chamber 10. The number of drying chambers 10 is more than 1. In fig. 1, only 2 drying chambers 10 are schematically shown, but the number of drying chambers 10 should not be limited thereto. A conveyor belt 110 for conveying materials is arranged in the drying cavity 10. When the drying cavity 10 is used for drying the fodder, the fodder dryer 100 further includes a case 40 which is assembled with the drying cavity 10, the air inlet duct 20 and the air outlet duct 30 to form a circulation air path. Referring to fig. 1 and 2, in an example, 2 layers of conveyor belts 110 are disposed in the drying chamber 10 along the height direction of the fodder dryer 100. The cabinet 40 is disposed at the top of the drying chamber 10, wherein an air inlet passage 410 and a moisture exhaust passage 420 which are communicated with each other are disposed in the cabinet 40, a circulating fan 430 is installed in the air inlet passage 410, the moisture exhaust passage 420 is provided with a moisture exhaust port 421, and an outlet 411 of the air inlet passage 410 is communicated with the air inlet duct 20. The cabinet 40 is supported at least in part in the drying chamber 10. Further, a heat exchanger 430 is installed in the intake passage 410 for heating the wind flowing toward the intake duct 20.

For convenience of illustration, the air flowing into drying chamber 10 from air inlet duct 20 is labeled as hot air H in fig. 2, the air after passing through conveyor 110 is labeled as circulating air R, the portion of circulating air R discharged from moisture discharge port 421 is moisture discharge air EX, and the outside of symbol H, R, EX in fig. 2 is circled to distinguish it from other lines more clearly. As shown in fig. 2, when the circulation fan 430 is operated, hot air H flows into the air inlet duct 20 of each drying chamber 10 from the outlet 411 of the air inlet passage 410, and then the hot air H dries the materials on each layer of the conveyor belt 110. The circulation air R after passing through the material flows into the outlet duct 30 and then into the moisture exhaust duct 420. Then, a part of the circulating air R having a large amount of moisture is discharged as the exhaust air EX, and the remaining part of the circulating air R flows into the intake passage 410 to participate in the circulation.

As described in the background art, the scraper structure in the conventional art has high installation and maintenance costs, especially when the number of drying chambers in the fodder dryer is greater than 1. And, the scraper blade structure itself has the not thorough shortcoming of clearance inadequately.

In view of the above problems, in one embodiment, as shown in fig. 1 to 3, the feed dryer 100 further includes a negative pressure cleaning device 50. The negative pressure cleaning device 50 comprises a negative pressure unit 510, a collecting pipe 520 and a plurality of dust collecting tanks 530, wherein the collecting pipe 520 is communicated with the negative pressure unit 510, the dust collecting tanks 530 are arranged below the bottom of the drying cavity 10 and are in one-to-one sealing communication with the air outlets 30, the dust collecting tanks 530 are respectively communicated with the collecting pipe 520, and valves 540 are installed in the dust collecting tanks 530. The sealed connection here means that when the dust collecting groove 530 is connected to the corresponding air outlet duct 30, the connection between the dust collecting groove 530 and the air outlet duct 30 is sealed. The valve 540 is used to isolate the connection between the dust collecting tank 530 and the collecting pipe 520, so that when the fodder dryer 100 is working normally, the bottom of the air outlet duct 30 is still closed, and the pressure of the dust collecting tank 530 is not released.

In one example, the valve 540 is a pneumatic butterfly valve for easy operation. In one example, dust collection tank 530 is in communication with collection pipe 520 via branch pipe 550. In this embodiment, 2 drying chambers 10 and 2 dust collecting grooves 530 are provided as an example for explanation, but the numbers of the drying chambers 10 and the dust collecting grooves 530 should not be limited thereto.

In one example, as shown in fig. 1 and 3, dust collection tank 530 is funnel-shaped with the larger end opening toward fodder dryer 100 and the smaller end opening into branch pipe 550. The end with a larger opening is configured as a rectangular opening, but not limited to this, and may also be configured as a circle, an irregular shape, and the like.

The working principle of the negative pressure cleaning device 50 of the feed dryer 100 of the above embodiment is as follows: when the fodder dryer 100 is operated, the valve 540 is closed and the circulating air R flows upward normally. When the feed dryer 100 is operated for a period of time and needs to be cleaned, the feed dryer 100 is stopped, the valve 540 is opened, the negative pressure unit 510 is started, the dust collected in the dust collecting tank 530 and settled from the air outlet duct 30 is sucked into the collecting pipe 520, the dust on the bottom plate of the drying chamber 10 is sucked into the dust collecting tank 530 under the action of negative pressure, and then the dust flows to the negative pressure unit 510 along with the negative pressure airflow. By the above means, as long as the negative pressure provided by the negative pressure unit 510 is enough, the dust inside the fodder dryer 100 generated during the operation can be effectively cleaned.

The fodder drying-machine 100 of above-mentioned embodiment, usable negative pressure cleaning device 50 carries out once or clearance many times to the inside dust of fodder drying-machine 100, and dust collecting groove 530 sets up in the outside in stoving chamber 10, compares with the mode that adopts the internally mounted scraper blade structure in the stoving chamber among the conventional art, and it is all more convenient when installation and maintenance, and the clearance effect is also better. And, dust collecting groove 530 sets up in the outside of stoving chamber 10, does not occupy the inner space of stoving chamber 10, compares with the conventional art, and under the same height dimension, the stoving chamber 10 of this embodiment more does benefit to the structural design of conveyer belt 110.

The specific implementation form of the negative pressure unit 510 is not limited, and it is sufficient that a negative pressure can be generated in the dust collecting groove 530 to suck the dust. In one example, as shown in fig. 3, the negative pressure unit 510 includes a salon 511 and a dust removal fan 512, where the salon 511 includes an air inlet 5112, an air outlet 5113, and a dust outlet 5114, the air inlet 5112 is communicated with the collecting pipe 520, and the air outlet 5113 is communicated with the dust removal fan 512. The salon 511 is a device based on the principle of cyclone separation, which uses centrifugal force to separate and collect dust from an air flow, as such is known to the person skilled in the art and will not be described in further detail. In specific implementation, the salon 511 is communicated with the dust removal fan 512 through a connecting pipe 513. The dust removing fan 512 is also connected with an exhaust pipe 514. When the negative pressure unit 510 works, the collected dust enters the salon 511 through the collecting pipe 520, and due to the centrifugal force and gravity, the dust is settled and discharged from the dust outlet 5114 of the salon 511, and then the clean air flow is discharged from the connecting pipe 513, enters the dust removal fan 512, and is discharged out of the room through the exhaust pipe 514. In this example, the dust can be separated by using the salon 511, so that the air flow discharged outdoors does not contain dust, and the environmental protection requirement is met.

In another example, the negative pressure unit 510 includes a dust removal fan 512 and a dust collection box (not shown), wherein the dust removal fan 512 is connected to the collecting pipe 520 through a pipe, and the dust collection box is connected to the dust removal fan 512 through a pipe. When the negative pressure unit 510 is operated, the collected dust enters the blower fan through the collecting pipe 520 and then flows into the dust box.

In the embodiment of the present invention, the dust collecting groove 530 is disposed outside the drying cavity 10, so that the installation is convenient, and the specific arrangement manner is not limited on the premise of satisfying the purpose.

In one embodiment, dust collection tank 530 is supported on collection pipe 520. In specific implementation, the negative pressure unit 510 in the negative pressure cleaning device 50 is disposed at one side of the drying chamber 10, the collecting pipe 520 extends to the lower side of the drying chamber 10, wherein the collecting pipe 520 and the branch pipe 550 are both hard pipes, so that it is not necessary to additionally provide a supporting structure to support and fix the dust collecting tank 530. That is, only the dust collecting groove 530 and the bottom of the drying chamber 10 need to be butted, and the drying chamber 10 does not need to bear the gravity of the dust collecting groove 530. For example, the dust collection groove 530 is supported by the collection pipe 520, and the bottom of the air outlet duct 30 is connected to the dust collection groove 530 by a bellows.

In one embodiment, the dust collecting groove 530 is detachably installed at the bottom of the drying chamber 10 and is communicated with the air outlet duct 30. In specific implementation, the dust collecting groove 530 may be fixed at the bottom of the drying cavity 10, for example, by screws, fasteners, or the like. Further, a dust collection groove 530 is installed to the bottom of the drying chamber 10 for convenience. Dust collection tank 530 is connected to collection pipe 520 by a hose. Thus, the position of the dust collection groove 530 can be conveniently adjusted when the dust collection groove 530 is installed.

To avoid dust agglomeration in the dust collection tank 530. As shown in fig. 3, in addition to the above embodiments, in an embodiment, an air hammer 560 is further disposed outside the dust collecting groove 530. When dust in the feed dryer 100 needs to be cleaned, the dust collecting tank 530 is vibrated by the air hammer 560, and then the negative pressure unit 510 is turned on and the valve 540 is opened. In one example, the air hammer 560 includes a hammer head, a hammer seat coupled to the hammer head. The hammer block is disposed on the outer wall of the dust collection groove 530. The hammer is connected with an air pipe which is used for connecting a compressed air source. The pneumatic connecting piece is used for filtering impurities in the compressed gas, and the electromagnetic valve is used for controlling the size of the compressed gas. The compressed gas source may be a gas bag or other source that can produce compressed gas. The air hammer 560 works as follows: after compressed gas is introduced into the air pipe, the hammer head starts to strike the hammer seat, and the hammer seat is connected to the dust collecting tank 530, so that the dust collecting tank 530 vibrates. In other embodiments, the hammer head may also directly hit the dust collection groove 530.

In order to facilitate installation of the dust collecting groove 530, in an embodiment, the dust collecting groove 530 is flexibly connected to the bottom of the drying cavity 10, so that when the dust collecting groove 530 is installed, the position of the dust collecting groove 530 can be conveniently adjusted to align with the air outlet duct 30 as soon as possible.

In one example, the dust collection tank 530 is supported by the collection pipe 520, and the dust collection tank 530 is connected to the air outlet duct 30 by a bellows. The bellows enables sealed communication of the dust collection tank 530 with the exhaust duct 30, and the bellows does not affect the adjustment of the position of the dust collection tank 530 when the dust collection tank 530 is installed. It should be noted that the dust collection groove 530 may also be supported on other supporting bases, for example, the dust collection groove 530 is directly supported on the ground.

In another example, the dust collection tank 530 is supported by the collection pipe 520, and the dust collection tank 530 is connected to the air outlet duct 30 by a bellows. The bellows enables sealed communication of the dust collection tank 530 with the exhaust duct 30, and the bellows does not affect the adjustment of the position of the dust collection tank 530 when the dust collection tank 530 is installed. Meanwhile, an air hammer 560 is arranged outside the dust collecting tank 530, when dust in the feed dryer 100 needs to be cleaned, the air hammer 560 is used for vibrating the dust collecting tank 530, and then the negative pressure unit 510 is started and the valve 540 is opened. In this example, due to the flexible connection between the dust collection groove 530 and the bottom of the drying chamber 10, when the dust collection groove 530 is vibrated by the air hammer 560, the sealing between the dust collection groove 530 and the air outlet duct 30 is less affected.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A feed dryer is characterized by comprising

The drying device comprises a plurality of drying cavities arranged side by side, wherein an air inlet channel and an air outlet channel are respectively arranged on two sides of each drying cavity;

negative pressure cleaning device, including setting up negative pressure unit, collecting pipe, a plurality of dust collecting vat, wherein the collecting pipe with negative pressure unit intercommunication, it is a plurality of the dust collecting vat set up in the bottom below in stoving chamber and with a plurality of the sealed intercommunication of air outlet duct one-to-one, it is a plurality of the dust collecting vat respectively with the collecting pipe intercommunication, install the valve in the dust collecting vat.

2. The feed dryer of claim 1, wherein the dust collection tank is detachably mounted at the bottom of the drying chamber and is communicated with the air outlet duct.

3. The feed dryer of claim 2 wherein the dust collection tank is connected to the collection pipe by a hose.

4. The feed dryer of claim 1 wherein the dust collection tank is supported by the collection pipe.

5. The feed dryer of claim 1, wherein an air hammer is provided outside the dust collection tank.

6. The feed dryer of claim 4 or 5, wherein the dust collection tank is flexibly connected to the air outlet duct.

7. The feed dryer as claimed in claim 6, wherein the dust collecting groove is connected to the air outlet duct by a bellows.

8. The feed dryer of claim 1, wherein the negative pressure unit comprises a cyclone and a dust removal fan, the cyclone comprises an air inlet, an air outlet and a dust outlet, the air inlet is communicated with the collecting pipe, and the air outlet is communicated with the dust removal fan.

9. The feed dryer of claim 8 wherein an exhaust duct is connected to the de-dusting fan.

10. The feed dryer as claimed in claim 1, further comprising a case disposed on the top of the drying chamber, wherein the case is provided therein with an air inlet channel and a moisture exhaust channel, the air inlet channel is provided therein with a circulating fan, the moisture exhaust channel is provided with a moisture exhaust port, an outlet of the air inlet channel is communicated with the air inlet channel, and the air outlet channel is communicated with the moisture exhaust channel.

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