Drying device for rice processing

Abstract

The utility model discloses a drying device for rice processing, and belongs to the technical field of rice processing. Comprising a supporting frame, a drying cylinder horizontally arranged on the supporting frame, a heating assembly connected with the drying cylinder, a stirring assembly arranged in the drying cylinder, a feeding channel arranged at the top end of the drying cylinder, a connecting pipeline arranged on the side wall of the feeding channel and a first filter screen arranged in the connecting pipeline. The impurity collecting box is arranged at the discharging end of the connecting pipeline and located above the drying cylinder, the second filter screen is vertically arranged in the impurity collecting box, the dust suction pipe can move vertically, and the first exhaust fan is arranged outside the impurity collecting box and connected with the impurity collecting box; the mesh diameter of the first filter screen is larger than that of the second filter screen; a blocking assembly is arranged at the top end of the feeding channel. The rice drying device can effectively remove dust, suspended solids and other impurities in the rice drying process, and effectively reduces the degree of harm to the environment in the rice processing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to rice processing technical field especially, relates to a drying device for rice processing. BACKGROUND

[0002] Rice is the finished product after the rice is cleaned, hulled, milled and finished product arranged. It is also called rice, which is food after the rice is cleaned, hulled, milled and finished product arranged.

[0003] The rice after the cleaning process contains a large amount of water, which needs to be dried to ensure that the subsequent process can proceed smoothly. During the drying process, some dust, fine suspended matter and other impurities adhering to the surface of the rice will gradually fall off from the surface of the rice. If these impurities are not cleaned in time, they will be scattered into the environment with the airflow, causing environmental pollution. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a drying device for rice processing, which can effectively remove dust, suspended matter and other impurities in the drying process of rice and effectively reduce the harm to the environment during the rice processing.

[0005] The utility model aims at achieving the following technical solutions:

[0006] A drying device for rice processing, comprising a support frame, a drying cylinder horizontally arranged on the support frame, a heating assembly connected to the drying cylinder, a stirring assembly arranged in the drying cylinder, a feeding channel arranged at the top end of the drying cylinder, a connecting pipe arranged on the side wall of the feeding channel, a first filter screen arranged in the connecting pipe, a impurity collection box arranged above the drying cylinder at the discharge end of the connecting pipe, a second filter screen vertically arranged in the impurity collection box and a dust suction pipe capable of vertically displacing, and a first air extractor arranged outside the impurity collection box and connected to the impurity collection box.

[0007] The mesh aperture of the first filter screen is larger than that of the second filter screen.

[0008] Preferably, the stirring assembly comprises a central shaft rotatably arranged in the drying cylinder, a scraper sleeve arranged outside the central shaft, and a motor arranged at the end of the drying cylinder and fixedly connected to one end of the central shaft.

[0009] Preferably, the dust suction pipe is arranged between the first filter screen and the second filter screen, two ends of the dust suction pipe are slidably connected with inner walls of the impurity collecting box respectively, a plurality of suction holes are arranged on a side of the dust suction pipe close to the second filter screen, a top end of the dust suction pipe is provided with a dust suction hose, and the top end of the dust suction hose penetrates through a top end of the impurity collecting box and is connected with the second air extractor.

[0010] Preferably, the two ends of the dust suction pipe are respectively provided with sliding blocks, and the inner walls of the impurity collecting box are provided with vertical sliding grooves in sliding fit with the sliding blocks.

[0011] Preferably, the first filter screen and the side wall of the feeding channel are threadedly connected, and a side of the first filter screen away from the second filter screen is in the same vertical plane as the inner side of the side wall of the feeding channel.

[0012] Preferably, the plugging assembly is a top cover or a piston.

[0013] Preferably, the side wall of the drying cylinder is provided with a discharge port, and the discharge port is hingedly connected with a discharge cover.

[0014] Preferably, the heating assembly comprises a hot air blower arranged on the drying cylinder, an air pipe connected with an air outlet end of the hot air blower, an air hood connected with an air outlet end of the air pipe, and a third filter screen arranged at an air outlet end of the air hood; and the air outlet end of the air hood is connected with the side wall of the drying cylinder.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] By arranging the connecting pipe on the side wall of the feeding channel, arranging the impurity collecting box at the discharge end of the connecting pipe, arranging the second filter screen in the impurity collecting box, arranging the first air extractor connected with the impurity collecting box outside the impurity collecting box, arranging the first filter screen in the connecting pipe, and arranging the plugging assembly in the feeding channel, the top end of the feeding channel can be blocked by the plugging assembly during the drying process, so that the impurities are prevented from being discharged along the feeding channel, and then the impurities such as dust, small suspended matters and water vapor are all discharged into the connecting pipe, and then into the impurity collecting box, and then blocked by the second filter screen, so that the impurities are prevented from being directly discharged into the environment together with the water vapor and causing harm to the environment.

[0017] By arranging the first filter screen, the rice can be blocked, so that part of the rice is prevented from entering the connecting channel under the action of the scraper driving the rice to rotate and the airflow, and causing adverse effects on the removal of impurities.

[0018] In addition, the first filter screen is arranged on the side wall of the feeding pipe, does not shield the feeding channel of the feeding pipe, and can feed the drying cylinder at any time, thereby ensuring smooth feeding. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a sectional structure schematic view in the front view direction of the embodiment 1;

[0020] Figure 2 is a sectional structure schematic view in the front view direction of the embodiment 1; Figure 1 is a sectional structure schematic view in the right view direction;

[0021] Figure 3 is a sectional structure schematic view in the front view direction of the embodiment 1; Figure 1 is a sectional structure schematic view in the front view direction of the embodiment 1;

[0022] In the figure, 2 is a drying cylinder, 3 is a connecting pipe, 5 is a impurity collection box, 6 is a dust collection pipe, 7 is a first air extractor, 8 is a first filter screen, 9 is a second filter screen, 4 is a feeding channel, 10 is a central shaft, 11 is a scraper, 12 is a motor, 13 is a through hole, 14 is a dust collection hose, 15 is a hydraulic rod, 16 is a discharging cover, 18 is a vertical chute, 19 is a hot air blower, 21 is an air pipe, 20 is a third filter screen, 101 is an arc-shaped plate, 102 is a supporting leg, and 103 is a cross rod. DETAILED DESCRIPTION

[0023] Embodiment 1

[0024] A drying device for rice processing, as shown in Figure 1 and Figure 2 , comprises a supporting frame, a drying cylinder 2 horizontally arranged on the supporting frame, a heating assembly connected with the drying cylinder 2, a stirring assembly arranged in the drying cylinder 2, a feeding channel 4 arranged at the top end of the drying cylinder 2, a connecting pipe 3 arranged on the side wall of the feeding channel 4, a first filter screen 8 arranged in the connecting pipe 3, an impurity collection box 5 arranged at the discharging end of the connecting pipe 3 and above the drying cylinder 2 (as shown in Figure 1 and Figure 3 , in actual implementation, a fixing rod needs to be arranged between the impurity collection box 5 and the drying cylinder 2 to ensure that the impurity collection box 5 is firmly arranged on the drying cylinder 2), a second filter screen 9 vertically arranged in the impurity collection box 5 and a dust collection pipe 6 capable of vertically moving, and a first air extractor 7 arranged outside the impurity collection box 5 and connected with the impurity collection box 5 (as shown in Figure 1 , arranged on the side wall of the drying cylinder 2); the mesh aperture of the first filter screen 8 is larger than the mesh aperture of the second filter screen 9; and the top end of the feeding channel 4 is provided with a plugging assembly. Further, the plugging assembly is a top cover or a piston, both of which are prior art and are not shown in the figure.

[0025] Further, as shown in Figures 1-2 The stirring assembly comprises a central shaft 10 arranged to rotate in the drying cylinder 2, a scraper 11 arranged outside the central shaft 10, and a motor 12 arranged at the end of the drying cylinder 2 and fixedly connected with one end of the central shaft 10; at least one side of the scraper 11 is in contact with the inner wall of the drying cylinder 2; a plurality of through holes 13 are arranged on the scraper 11.

[0026] Further, as shown in Figures 1-2 The side wall of the drying cylinder 2 is provided with a discharge port, and the discharge cover 16 is hingedly connected with the discharge port. The discharge cover 16 and the drying cylinder 2 are connected by any connecting assembly of the prior art, or can be connected by bolts.

[0027] Further, the heating assembly comprises a hot air blower 19 arranged on the drying cylinder 2, an air pipe 21 connected with the air outlet end of the hot air blower 19, an air hood connected with the air outlet end of the air pipe 21, and a third filter screen 20 arranged at the air outlet end of the air hood (for blocking the rice while allowing air to pass through). The discharge end of the air hood is connected with the side wall of the drying cylinder 2.

[0028] Further, as shown in Figures 1-2 The support frame comprises arc-shaped plates 101 arranged at the lower part of the drying cylinder 2, support legs 102 arranged at the bottom end of each arc-shaped plate 101, and a plurality of cross bars arranged between two arc-shaped plates 101.

[0029] Working principle: the rice to be dried is added into the drying cylinder 2 along the feeding channel 4, then the plugging assembly plugs the top end of the feeding channel 4, and the motor 12, the hot air blower 19 and the first air blower 7 are turned on. Under the action of the hot air blower 19, hot air enters the drying cylinder 2 along the air pipe 21 and the air hood in sequence, so as to achieve the purpose of hot air drying of the rice. Under the action of the motor 12, the central shaft 10 drives the scraper 11 to rotate in the drying cylinder 2, so as to stir the material and make the material rotate in the drying cylinder 2, so that the hot air can quickly penetrate the rice and improve the drying efficiency of the rice.

[0030] Under the action of the air blower, the dust, smaller suspended matter and other floating impurities and water vapor enter the connecting pipeline 3 together, then enter the impurity collection box 5 through the connecting pipeline 3, are blocked by the second filter screen 9, and then stay in the impurity collection box 5, while the water vapor continues to be discharged along the first air blower 7.

[0031] The impurities are continuously filtered through the first filter screen 8, and thus the impurities are continuously adhered to the first filter screen 8. If the first filter screen 8 is not cleaned in time, the smoothness of the water vapor discharge will be affected. Therefore, the dust collection pipe 6 is moved up and down at intervals to suck the adhered materials on the first filter screen 8, so as to effectively ensure the smoothness of the first filter screen 8 and the ventilation smoothness.

[0032] Embodiment 2

[0033] On the basis of Embodiment 1, as shown in Figure 1 and Figure 3 , the dust collection pipe 6 is arranged between the first filter screen 8 and the second filter screen 9, the two ends of the dust collection pipe 6 are respectively slidably connected to the inner wall of the impurity collecting box 5, a plurality of suction holes are arranged on the side of the dust collection pipe 6 close to the second filter screen 9, a dust collection hose 14 is arranged at the top end of the dust collection pipe 6, the top end of the dust collection hose 14 penetrates through the top end of the impurity collecting box 5 and is connected to a second air suction machine (prior art, not shown in the figure, which can be arranged on the drying cylinder 2), and the dust collection pipe 6 is connected to a hydraulic rod 15 arranged at the top end of the impurity collecting box 5. Further, as shown in Figure 3 , the two ends of the dust collection pipe 6 are respectively provided with sliding blocks, and the inner wall of the impurity collecting box 5 is provided with vertical sliding grooves 18 slidably matched with the sliding blocks. In this embodiment, when the dust collection pipe 6 needs to be used, the second air suction pipe 21 and the hydraulic rod 15 are opened, a certain negative pressure is formed in the dust collection pipe 6 under the action of the second air suction pipe 21, so that the impurities on the first filter screen 8 can be sucked, and the dust collection pipe 6 moves up and down with the extension and retraction of the hydraulic rod 15 under the action of the hydraulic rod 15, so that the sliding blocks slide up and down in the vertical sliding grooves 18. In the process of moving up and down, the impurities on the first filter screen 8 can be sucked to the maximum extent.

[0034] Further, on the basis of Embodiment 1 or Embodiment 2, the first filter screen 8 and the side wall of the feeding channel 4 are threadedly connected, so as to facilitate the disassembly of the first filter screen 8. The side of the first filter screen 8 away from the second filter screen 9 (i.e. the filtering surface) is in the same vertical plane as the inner side of the side wall of the feeding channel 4 (i.e. the side away from the second filter screen 9). If the filtering surface of the first filter screen 8 is exposed to the outside of the side of the connecting pipe 3 away from the second filter screen 9, part of the materials will be left on the top wall during feeding. If the filtering surface of the first filter screen 8 is arranged at a position close to the inside of the connecting pipe 3, a certain gap will be formed between the filtering surface of the first filter screen 8 and the side of the connecting pipe 3 away from the second filter screen 9, and part of the materials blocked by the first filter screen 8 will fall into the gap and be left during the drying process.

Claims

1. A drying device for rice processing, characterized in that, The device includes a support frame, a drying cylinder (2) horizontally mounted on the support frame, a heating assembly connected to the drying cylinder (2), a stirring assembly inside the drying cylinder (2), a feeding channel (4) at the top of the drying cylinder (2), a connecting pipe (3) on the side wall of the feeding channel (4), a first filter screen (8) inside the connecting pipe (3), an impurity collection box (5) located at the discharge end of the connecting pipe (3) and above the drying cylinder (2), a second filter screen (9) vertically mounted inside the impurity collection box (5), a dust suction pipe (6) capable of vertical displacement, and a first exhaust fan (7) located outside the impurity collection box (5) and connected to the impurity collection box (5). The mesh size of the first filter screen (8) is larger than that of the second filter screen (9); a sealing component is provided at the top of the feed channel (4).

2. The rice drying device according to claim 1, characterized in that, The stirring assembly includes a central shaft (10) rotatably disposed inside the drying cylinder (2), a scraper (11) sleeved outside the central shaft (10), and a motor (12) disposed at the end of the drying cylinder (2) and fixedly connected to one end of the central shaft (10); at least one side of the scraper (11) is in contact with the inner wall of the drying cylinder (2); the scraper (11) is provided with a plurality of through holes (13).

3. The rice drying device according to claim 1, characterized in that, The suction pipe (6) is disposed between the first filter screen (8) and the second filter screen (9). Both ends of the suction pipe (6) are slidably connected to the inner wall of the impurity collection box (5). The suction pipe (6) has multiple suction holes on the side near the second filter screen (9). The top end of the suction pipe (6) is provided with a suction hose (14). The top end of the suction hose (14) passes through the top end of the impurity collection box (5) and is connected to the second exhaust fan. The suction pipe (6) is connected to the hydraulic rod (15) disposed at the top end of the impurity collection box (5).

4. The rice drying device according to claim 3, characterized in that, The suction pipe (6) is provided with sliders at both ends, and the inner wall of the impurity collection box (5) is provided with a vertical groove (18) that slides with the sliders.

5. A rice drying device according to claim 1, characterized in that, The first filter screen (8) and the side wall of the feed channel (4) are threaded together. The side of the first filter screen (8) away from the second filter screen (9) is on the same vertical plane as the inner side of the side wall of the feed channel (4).

6. The rice drying device according to claim 1, characterized in that, The sealing component is a top cover or a piston.

7. A rice drying device according to claim 1, characterized in that, The drying cylinder (2) has a discharge port on its side wall, and the discharge port is hinged with a discharge cover (16).

8. A rice drying device according to claim 1, characterized in that, The heating assembly includes a hot air blower (19) mounted on the drying cylinder (2), an air duct (21) connected to the air outlet of the hot air blower (19), an air hood connected to the air outlet of the air duct (21), and a third filter screen (20) mounted on the air outlet of the air hood; the discharge end of the air hood is connected to the side wall of the drying cylinder (2).

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