Drying device for pretreatment of coarse cereal mixed raw materials

Abstract

The invention discloses a drying device for pretreatment of coarse cereal mixed raw materials, relates to the technical field of coarse cereal drying devices, and solves the technical problems that the temperature difference between just entering coarse cereals and hot air is large, and drying is not uniform. Comprising a drying roller which is slightly obliquely mounted at the top of a drying machine rack; the uniform drying mechanism comprises a plurality of air supply pipes embedded in the inner wall of the drying roller, an arc-shaped air guide pipe for supplying hot air into the drying roller, and a heating component arranged at the right end of the drying roller in a sleeving manner and used for providing the hot air; generated hot air can be evenly sent to each sieve plate, the drying temperature of each sieve plate is adjusted and controlled according to the coarse cereal drying time, coarse cereals can be fully dried through hot air, the situation that the drying uniformity is affected by large temperature difference cannot be generated, the gas heating time is prolonged, gas heating is even, and the drying efficiency is improved. The coarse cereal drying quality and the drying efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of miscellaneous grain drying devices, in particular to a drying device for pre-treating mixed raw materials of miscellaneous grains. Background Art

[0002] Before mixing the grains, the quality of the raw materials must be guaranteed. Therefore, a drying device is needed to dry the grain raw materials. The core benefit of drying is to improve the quality and safety of the grains, reduce the risk of mildew and bacterial growth, and thus ensure the storage safety and edible quality of the grains.

[0003] For example, a raw material drying and pretreatment device for grain processing with announcement number CN118066812B includes a frame, on top of which is rotatably mounted a drying cylinder that is inclined, on both sides of the frame are fixedly mounted a feed box and a discharge box, both of which are connected to the drying cylinder, a bent pipe is fixedly mounted through the feed box, a fan is fixedly mounted inside the bent pipe, and the bent pipe is used to draw the hot air heated by the discharge box into the drying cylinder to heat the grains inside the drying cylinder.

[0004] In the above patent, the external gas directly passes through the heating element for heating, which may cause uneven heating by hot air, and may affect the drying effect of the grains. In addition, there are no corresponding temperature control measures, and the newly fed grains are directly dried by hot air, which may cause a large temperature difference and uneven drying. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a drying device for pre-treating mixed grain raw materials.

[0006] A drying device for pre-treating mixed grain raw materials, comprising:

[0007] A drying drum, which is slightly tilted and mounted on the top of the dryer frame;

[0008] A uniform drying mechanism installed on the drying drum, the uniform drying mechanism comprising a plurality of air supply pipes embedded in the inner wall of the drying drum, an arc-shaped air guide pipe for supplying hot air to the interior of the drying drum, and a heating member sleeved on the right end of the drying drum for providing hot air;

[0009] A collection component installed at the bottom of the drying drum to recover the broken shells generated during the drying process.

[0010] Preferably, the heating component includes a hollow ring sleeved on the drying drum, with cover plates provided on both sides of the hollow ring, a plurality of annular heating rods provided inside the hollow ring, and two groups of guide groups provided on the surface of the annular cavity opened inside the hollow ring, and the two groups of guide groups are respectively located on the inner and outer sides of the annular heating rod.

[0011] Preferably, the inner surface of the hollow ring is provided with a stabilizing plate for supporting and fixing the annular heating rod, and the outer circumferential surface of the hollow ring is provided with an energy supply box connected to the annular heating rod.

[0012] Preferably, a connecting pipe is provided on the side of the cover plate on the left side, the lower end of the connecting pipe extends to the inner wall of the drying drum and is connected to the air supply pipe on the far right, a connecting pipe is provided between the air supply pipe and the arc-shaped air guide pipe, and a plurality of inclined nozzles are provided on the inner side of the arc-shaped air guide pipe.

[0013] Preferably, a temperature control and adjustment component is embedded and installed between two adjacent air supply pipes, and the temperature control and adjustment component includes a heat preservation tube installed between the two air supply pipes, and the air supply pipe and the heat preservation tube are internally communicated.

[0014] Preferably, a spiral refrigeration plate is horizontally arranged inside the heat preservation tube, and a spiral guide plate located inside the spiral refrigeration plate is arranged at the center of the heat preservation tube.

[0015] Preferably, an air pump is provided on the rightmost side of the cover plate, and an air intake pipe is provided between the air pump and the hollow ring.

[0016] Preferably, the collecting component comprises a whole distribution pipe horizontally embedded in the bottom of the drying drum, a recovery ring located inside the drying drum is arranged on the upper surface of the distribution pipe, a recovery box is arranged at the bottom of the left end of the drying drum, and a recovery pipe is arranged between the recovery box and the distribution pipe.

[0017] Preferably, a bucket-shaped cloth bag is arranged on the inner side of the right end of the recovery box, an exhaust pipe is arranged on the left end of the recovery box, a filter layer is arranged at the inner end of the exhaust pipe, and a spiral retention plate is arranged on the inner surface of the exhaust pipe.

[0018] Preferably, a discharge pipe is provided at the right end of the drying drum, the drying drum forms an acute angle with the horizontal direction, and the right end of the drying drum is lower than the left end.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention can evenly deliver the generated hot air to each sieve plate, and adjust the drying temperature at each sieve plate according to the drying time of the grains, so that the grains can be fully dried with hot air without causing a large temperature difference to affect the drying uniformity, prolonging the time for the gas to be heated, making the gas heated evenly, improving the drying quality of the grains and improving the drying efficiency.

[0021] (2) The temperature control and adjustment component designed in the present invention can control the temperature of the hot air, keeping the hot air at a suitable drying temperature for drying the grains at each sieve plate, and preventing a large temperature difference between the grains and the hot air. The temperature control is also convenient and quick.

[0022] (3) The present invention can absorb and collect the broken shells generated during the drying process of the grains through the designed collection component, and will not discharge them directly into the air, thereby improving the air quality around the grain drying area. In addition, the broken shells will not clog the filter holes and interrupt the filtration of the broken shells during the collection process, thereby ensuring the continuity of the collection of the broken shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the grain drying device of the present invention;

[0024] Figure 2 For the present invention Figure 1 a cross-sectional view of the middle drying drum;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the structure of the uniform drying mechanism in the bottom view;

[0026] Figure 4 For the present invention Figure 2 Exploded view of the heating component;

[0027] Figure 5 For the present invention Figure 3 A cross-sectional view of the medium temperature control and adjustment component;

[0028] Figure 6 For the present invention Figure 5 A magnified image of area A;

[0029] Figure 7 For the present invention Figure 3 A schematic diagram of the structure of the collection component;

[0030] Figure 8 For the present invention Figure 7 A cross-sectional view of the collecting member;

[0031] In the figure: 100, drying machine frame; 101, drying drum; 102, discharge pipe; 200, uniform drying mechanism; 201, heating component; 2011, hollow ring; 2012, cover plate; 2013, energy supply box; 2014, annular heating rod; 2015, stabilizing plate; 2016, guide group; 202, air pump; 203, arc-shaped air guide pipe; 204, temperature control adjustment component; 2041, insulation cylinder ; 2042, spiral guide plate; 2043, spiral refrigeration plate; 2044, support plate; 205, connecting pipe; 206, air supply pipe; 207, inclined nozzle; 208, connecting pipe; 300, collecting component; 301, recovery pipe; 302, recovery box; 303, exhaust pipe; 304, distribution pipe; 305, recovery ring; 306, funnel-shaped bag; 307, spiral retention plate; 308, filter layer. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] Please refer to the figure - Figure 5 The present application provides a drying device for pre-treating mixed grain raw materials, comprising:

[0035] The drying drum 101 is slightly tilted and installed on the top of the drying machine frame 100. The slight tilt facilitates the movement of the grains inside the drying drum 101 from one end to the other end. A feeding port is provided at the left end of the drying drum 101 to facilitate the unloading of grains.

[0036] The uniform drying mechanism 200 installed on the drying drum 101 can evenly deliver the generated hot air to each sieve plate by using the uniform drying mechanism 200, and adjust the drying temperature at each sieve plate according to the drying time of the grains, so that the grains can be fully dried with hot air without causing a large temperature difference to affect the drying uniformity, and the gas heating time is extended to make the gas heating uniform, thereby improving the drying quality of the grains and the drying efficiency. The uniform drying mechanism 200 includes a plurality of air supply pipes 206 embedded in the inner wall of the drying drum 101, an arc-shaped air guide pipe 203 for delivering hot air to the inside of the drying drum 101, and a heating component 201 sleeved on the right end of the drying drum 101 to provide hot air;

[0037] A collecting component 300 is installed at the bottom of the drying drum 101 to recover the broken shells generated during the drying process. The collecting component 300 can be used to absorb and collect the broken shells generated during the drying process of the grains, and will not be directly discharged into the air, thereby improving the air quality around the drying of the grains. In addition, the broken shells will not clog the filter holes during the collection process, thereby ensuring the continuity of the collection of the broken shells.

[0038] In this embodiment, preferably, the heating component 201 includes a hollow ring 2011 sleeved on the drying drum 101, and cover plates 2012 are arranged on both sides of the hollow ring 2011, and the two can be connected by screws for easy disassembly and assembly. A plurality of annular heating rods 2014 are arranged inside the hollow ring 2011, and two groups of guide groups 2016 are arranged on the surface of the annular cavity opened inside the hollow ring 2011, and each group of guide groups 2016 is composed of a plurality of inclined plates distributed along the circumferential surface of the annular cavity, and dispersion holes are also opened on the surface of the inclined plates, and the inclined plates in the two groups of guide groups 2016 are staggered, so that the gas entering the hollow ring 2011 will not flow in a regular annular flow, but will be dispersed by the inclined plates and the dispersion plates, and the irregular The gas flows in the hollow ring 2011, prolonging the time the gas stays in the hollow ring 2011, making it convenient for the gas to be fully heated, and there will be no uneven heating that affects the drying quality of the grains. The two groups of guide groups 2016 are respectively located inside and outside the annular heating rod 2014, and the inner surface of the hollow ring 2011 is provided with a stabilizing plate 2015 for supporting and fixing the annular heating rod 2014. The stabilizing plate 2015 supports the annular heating rod 2014, and a plurality of through holes for gas to pass through are opened on the surface of the stabilizing plate 2015, which does not affect the circulation of the gas in the hollow ring 2011. The outer circumferential surface of the hollow ring 2011 is provided with a power box 2013 connected to the annular heating rod 2014, so as to conveniently supply energy to the annular heating rod 2014.

[0039] In the present embodiment, preferably, a connecting pipe 205 is provided on the side of the cover plate 2012 located on the left side, and the lower end of the connecting pipe 205 extends to the inner wall of the drying drum 101 and is connected to the air supply pipe 206 on the far right. The air supply pipe 206 is embedded in the inner wall of the drying drum 101, so that the air supply pipe 206 and the connecting pipe 205 will not affect the rotation of the drying drum 101. A connecting pipe 208 is provided between the air supply pipe 206 and the arc-shaped air guide pipe 203. The arc-shaped air guide pipe 203 is located on the outer side of the sieve plate, and a plurality of inclined nozzles 207 are provided on the inner side of the arc-shaped air guide pipe 203. The inclined nozzles 207 can fully apply the drying hot air to the grains on each sieve plate.

[0040] In summary, when in use, the air pump 202 delivers external air into the hollow ring 2011. The air pump 202 is at the bottom of the hollow ring 2011, and the connecting pipe 205 is at the top of the hollow ring 2011, so that the gas sucked into the hollow ring 2011 can fully flow and heat inside. The gas flowing in the annular cavity will be guided and dispersed by the inclined plate, and the guided gas will pass through the annular heating rod 2014 to be heated, so that the gas is fully heated, and there will be no uneven heating. The heated gas enters the air supply pipe 206 through the connecting pipe 205, and is ejected from the arc-shaped air guide pipe 203 and the inclined nozzle 207 to act on the sieve plate, thereby drying the grains at the sieve plate. The drying time of the grains at each sieve plate in the drying drum 101 is different. The temperature control regulating component 204 can be used to regulate the hot air temperature of the grains at each sieve plate, so that the grains are in contact with the hot air of suitable temperature at different positions of the drying drum 101, and there will be no large temperature difference, thereby increasing the stability and safety of the grain drying.

[0041] Embodiment 2

[0042] Reference Figure 5 and Figure 6 , which is the second embodiment of the present invention.

[0043] In the present embodiment, preferably, a temperature control regulating component 204 is embedded and installed between two adjacent air supply pipes 206. The temperature control regulating component 204 can be used to control the temperature of the hot air to keep the hot air at a suitable drying temperature for drying the grains at each sieve plate. The grains will not be excessively dried to affect the drying quality, and the temperature regulation is convenient and quick. The temperature control regulating component 204 includes an insulation tube 2041 installed between the two air supply pipes 206, and the air supply pipe 206 and the insulation tube 2041 are connected to each other to facilitate the passage of hot air. A spiral refrigeration plate 2043 is horizontally arranged inside the insulation tube 2041, a spiral guide plate 2042 located inside the spiral refrigeration plate 2043 is arranged at the center of the insulation tube 2041, and a support plate 2044 for supporting the spiral guide plate 2042 is arranged on the inner wall of the insulation tube 2041.

[0044] In summary, when the hot air entering the air supply pipe 206 does not need to be regulated in temperature, it will be sprayed from the corresponding arc-shaped air guide pipe 203 and the inclined nozzle 207 to act on the grains. When the drying temperature of the grains needs to be regulated, each temperature control and adjustment component 204 can work independently, and it can be selected whether the temperature control and adjustment component 204 has a certain cooling effect on the hot air at each node. When the temperature control and adjustment component 204 is working, multiple temperature control and adjustment components 204 are used to cool the hot air step by step. The end away from the hollow ring 2011 is the grain feed. Position, the temperature of the miscellaneous grains at the position of the discharge pipe 102 is the highest in the miscellaneous grain drying temperature range, and the miscellaneous grains just coming in may be directly dried at high temperature, which may cause temperature difference and uneven drying. Therefore, the temperature control regulating component 204 will be cooled and regulated to minimize the temperature difference between the cooled hot air and the miscellaneous grains just fed in, and the miscellaneous grains will be preheated to reduce the temperature difference and uneven drying. As the miscellaneous grains move toward the discharge pipe 102, the temperature gradually rises to improve the drying effect of the miscellaneous grains. In the whole process, the uniformity and sufficiency of drying the miscellaneous grains are improved.

[0045] In this embodiment, preferably, an air pump 202 is provided on the side of the rightmost cover plate 2012 , and an air inlet pipe is provided between the air pump 202 and the hollow ring 2011 to facilitate the delivery of external air into the hollow ring 2011 .

[0046] Embodiment 3

[0047] Reference Figure 7 and Figure 8 , which is the third embodiment of the present invention.

[0048] In this embodiment, preferably, the collecting component 300 includes a whole distribution pipe 304 horizontally embedded in the bottom of the drying drum 101. The collecting component 300 will not affect the rotation of the drying drum 101. A suction pump can be connected to the distribution pipe 304 to generate suction pressure, and the sucked gas is sent into the recovery box 302 through the recovery pipe 301. A recovery ring 305 located inside the drying drum 101 is provided on the upper surface of the distribution pipe 304. A suction nozzle is provided on the surface of the recovery ring 305 to facilitate the extraction of the gas inside the drying drum 101. A recovery box 302 is provided at the bottom of the left end of the drying drum 101, and a space between the recovery box 302 and the distribution pipe 304 is provided. A recovery pipe 301 is provided, a funnel-shaped cloth bag 306 is provided on the inner side of the right end of the recovery box 302, an exhaust pipe 303 is provided on the left end of the recovery box 302, and a filter layer 308 is provided at the inner end of the exhaust pipe 303. The filter layer 308 is a cloth layer, which can not only play a filtering role but also facilitate gas discharge. A spiral retention plate 307 is provided on the inner surface of the exhaust pipe 303, so that the gas acts on the spiral retention plate 307, a part of it flows outward along the spiral retention plate 307, and a part of it is retained by the spiral shape at the left end of the spiral retention plate 307. A part of the retained gas will impact the filter layer 308 from the left side, causing the filter layer 308 to bulge inward.

[0049] In summary, when in use, the suction pump works to suck the gas inside the drying drum 101 outward and send it into the recovery box 302, and the sucked gas will carry part of the broken shells produced by drying, and the broken shells and the gas will pass through the funnel-shaped cloth bag 306 and be sent into the recovery box 302, and the gas carries the broken shells to act on the filter layer 308, and the broken shells are retained on the filter layer 308, and the gas passes through the filter layer 308 and is discharged outward, and a part of the discharged gas is retained on the spiral retention plate 307, and the spiral gas impacts the filter layer 308 from the outside. The filter layer 308 has wind impacts inside and outside the filter layer 308, and the filter layer 308 is a cloth layer, so that the filter layer 308 is constantly agitated, which can not only continuously filter the broken shells carried by the gas, but also prevent the broken shells from adhering to the filter layer 308, and prevent the broken shells from blocking the filter layer 308, thereby ensuring continuous filtering of the broken shells in the gas. After the recycling is completed, the funnel-shaped cloth bag 306 naturally hangs down, and the bag mouth is folded to prevent the broken shells from being discharged. Then the bottom of the recycling box 302 is opened to process the broken shells.

[0050] In this embodiment, preferably, a discharge pipe 102 is provided at the right end of the drying drum 101, the drying drum 101 forms an acute angle with the horizontal direction, and the right end of the drying drum 101 is lower than the left end, so that the dried grains are conveniently discharged from the discharge pipe 102, and the dryer frame 100 is composed of multiple trusses welded vertically and horizontally, so there is space at the upper end of the dryer frame 100, which does not affect the rotation of the recycling box 302.

[0051] Embodiment 4

[0052] This embodiment is obtained by combining the first embodiment, the second embodiment and the third embodiment.

[0053] When in use, the uniform drying mechanism 200 is used to draw in and heat the external air, and the temperature is adjusted step by step through the temperature control regulating component 204 to reduce the temperature difference between the hot air and the grains and increase the uniformity of drying the grains. The collecting component 300 is used to recover the hot air inside the drying drum 101, and the broken shells mixed in the recovered hot air are collected. The exhausted hot air can be connected to the set waste heat recovery system for recovery, thereby improving resource utilization.

[0054] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A drying device for pre-treatment of mixed grain raw materials, characterized in that: include: A drying drum (101), the drying drum (101) being slightly tilted and mounted on the top of the drying machine frame (100); A uniform drying mechanism (200) installed on a drying drum (101), the uniform drying mechanism (200) comprising a plurality of air supply pipes (206) embedded in the inner wall of the drying drum (101), an arc-shaped air guide pipe (203) for supplying hot air to the interior of the drying drum (101), and a heating component (201) sleeved on the right end of the drying drum (101) for providing hot air; A collecting component (300) is installed at the bottom of the drying drum (101) to recover the broken shells generated during the drying process.

2. A drying device for pre-treatment of mixed grain raw materials according to claim 1, characterized in that: The heating component (201) comprises a hollow ring (2011) sleeved on the drying drum (101), cover plates (2012) being arranged on both sides of the hollow ring (2011), a plurality of annular heating rods (2014) being arranged inside the hollow ring (2011), and two groups of guide groups (2016) being arranged on the surface of an annular cavity opened inside the hollow ring (2011), the two groups of guide groups (2016) being respectively located inside and outside the annular heating rods (2014).

3. A drying device for pre-treatment of mixed grain raw materials according to claim 2, characterized in that: The inner surface of the hollow ring (2011) is provided with a stabilizing plate (2015) for supporting and fixing the annular heating rod (2014), and the outer circumferential surface of the hollow ring (2011) is provided with an energy supply box (2013) connected to the annular heating rod (2014).

4. A drying device for pre-treatment of mixed grain raw materials according to claim 3, characterized in that: A connecting pipe (205) is provided on the side of the cover plate (2012) located on the left side, the lower end of the connecting pipe (205) extends to the inner wall of the drying drum (101) and is connected to the rightmost air supply pipe (206), a connecting pipe (208) is provided between the air supply pipe (206) and the arc-shaped air guide pipe (203), and a plurality of inclined nozzles (207) are provided on the inner side of the arc-shaped air guide pipe (203).

5. A drying device for pre-treatment of mixed grain raw materials according to claim 4, characterized in that: A temperature control and adjustment component (204) is embedded and installed between two adjacent air supply pipes (206), and the temperature control and adjustment component (204) comprises a heat preservation tube (2041) installed between the two air supply pipes (206), and the air supply pipe (206) and the heat preservation tube (2041) are internally communicated.

6. A drying device for pre-treatment of mixed grain raw materials according to claim 5, characterized in that: A spiral refrigeration plate (2043) is horizontally arranged inside the heat preservation tube (2041), and a spiral guide plate (2042) located inside the spiral refrigeration plate (2043) is arranged at the center of the heat preservation tube (2041).

7. The drying device for pre-treating mixed grain raw materials according to claim 5, characterized in that: An air pump (202) is arranged on the side of the rightmost cover plate (2012), and an air intake pipe is arranged between the air pump (202) and the hollow ring (2011).

8. The drying device for pre-treating mixed grain raw materials according to claim 1, characterized in that: The collecting component (300) comprises a whole distribution pipe (304) horizontally embedded in the bottom of the drying drum (101); a recovery ring (305) located inside the drying drum (101) is arranged on the upper surface of the distribution pipe (304); a recovery box (302) is arranged at the bottom of the left end of the drying drum (101); and a recovery pipe (301) is arranged between the recovery box (302) and the distribution pipe (304).

9. A drying device for pre-treatment of mixed grain raw materials according to claim 8, characterized in that: A funnel-shaped cloth bag (306) is arranged on the inner side of the right end of the recovery box (302), an exhaust pipe (303) is arranged on the left end of the recovery box (302), a filter layer (308) is arranged at the inner end of the exhaust pipe (303), and a spiral retention plate (307) is arranged on the inner surface of the exhaust pipe (303).

10. The drying device for pre-processing mixed grain raw materials according to claim 1, characterized in that: A discharge pipe (102) is provided at the right end of the drying drum (101), the drying drum (101) forms an acute angle with the horizontal direction, and the right end of the drying drum (101) is lower than the left end.

Images