An oil tiger nut spray drying device and method

Abstract

The present invention relates to the technical field of material drying, and particularly relates to an oil tiger nut spray drying device and method. The device includes a drying tank, a supporting device is installed on the outer surface of the drying tank, a feeding device is installed at the upper end of the drying tank, and a discharge pipe in an L shape is installed at the lower end of the drying tank; a suction device is further included, and the suction device is connected to the drying tank. The filtering mechanism adopted in the present invention effectively increases the area of the hot air discharge port, improves the efficiency of hot air discharge, and the filtering mechanism cooperates with the scraping mechanism to continuously scrape the filter screen during the drying operation, avoiding the blockage of the hot air discharge port after drying, thus preventing a large amount of hot air from being discharged from the discharge port, effectively reducing the influence of hot air on the collection of the dried oil tiger nut material, ensuring the discharge rate of the oil tiger nut material, and also avoiding the phenomenon of over-drying of the oil tiger nut material.

Description

Technical Field

[0001] The present invention relates to the technical field of material drying, and particularly relates to an oil cyperus esculentus spray drying device and method. Background Art

[0002] The oil cyperus esculentus, also known as tiger nut, is a nutritious crop rich in oil, protein, dietary fiber and minerals. The oil cyperus esculentus is usually processed into powder form. The specific processing technology includes steps such as raw material soaking, raw material crushing, pulping, homogenization treatment, spray drying, cooling and packaging, etc. Among them, spray drying is one of the most important steps.

[0003] After the oil cyperus esculentus is pretreated by washing, peeling, etc., it is made into an oil cyperus esculentus wet feed liquid through grinding, soaking and other methods. Then, before the oil cyperus esculentus wet feed liquid enters the spray drying tower, it needs to be heated to a certain temperature to facilitate the rapid evaporation of water. After that, the heated liquid is sent into the spray drying tower through a high-pressure pump, and fine droplets are formed at the top of the tower through a rotary atomizer or nozzle. At the same time, hot air is introduced into the spray drying tower. Under the action of the hot air, the oil cyperus esculentus wet feed liquid quickly evaporates water to complete drying. However, when the existing spray drying tower discharges the dried hot air, due to the small aperture of the exhaust hole and the easy blockage of the filter cloth on the exhaust hole, the efficiency and effect of the hot air discharged from the exhaust hole are not ideal, resulting in the hot air being easily discharged from the discharge port. And the hot air discharged from the discharge port is easy to blow away the dried oil cyperus esculentus material, which is not conducive to the collection of the oil cyperus esculentus material, and it is easy to have the problem of over-drying of the oil cyperus esculentus material. Summary of the Invention

[0004] Based on this, it is necessary to provide an oil cyperus esculentus spray drying device and method, aiming to solve the problems generated when the existing drying device sprays and dries the oil cyperus esculentus wet feed liquid.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions to implement: An oil cyperus esculentus spray drying device, comprising: a drying tank, a supporting device is installed on the outer surface of the drying tank, a feeding device is installed at the upper end of the drying tank, and a discharge pipe in an L-shaped structure is installed at the lower end of the drying tank.

[0006] It further includes a suction device, the suction device is connected to the drying tank, the suction device includes an air suction pipe installed through the tank wall of the drying tank and in an L-shaped structure, a conical pipe located inside the drying tank is installed at the lower end of the vertical section of the air suction pipe, a filtering mechanism is connected to the lower end of the conical pipe, a plurality of scraping mechanisms evenly distributed circumferentially are arranged on the outer periphery of the filtering mechanism, the scraping mechanisms are fixedly connected to the inner wall of the drying tank, a support ring is connected to the lower end of the filtering mechanism, a supporting mechanism is connected to the lower end of the support ring, and the supporting mechanism is connected to the inner wall of the drying tank.

[0007] It further includes a driving device, which is connected to the discharge pipe. The driving device includes a driving mechanism connected to the discharge pipe, and a spiral plate located inside the drying tank is connected to the driving mechanism.

[0008] It further includes a knocking device, which is connected to the driving mechanism and located below the supporting mechanism. The knocking device includes a rotating rod connected to the driving mechanism, a knocking mechanism is connected to the rotating rod, a connecting column is installed at a position where the lower end of the rotating rod is close to the inner wall of the drying tank, and a first scraping strip is installed at the lower end of the connecting column.

[0009] According to an embodiment of the present invention, the supporting device includes an annular plate sleeved and installed on the outer surface of the drying tank, and a plurality of support columns are installed at the lower end of the annular plate and are circumferentially and evenly distributed.

[0010] According to an embodiment of the present invention, the feeding device includes a sprayer installed through the top wall of the drying tank, a feeding pipe is installed at the upper end of the sprayer, and an air inlet pipe is installed on the side wall of the sprayer.

[0011] According to an embodiment of the present invention, the filtering mechanism includes a rotating ring that is rotatably connected to the lower end of the conical pipe and has a conical structure. The lower end of the rotating ring is rotatably connected to the upper end of the support ring. A plurality of placement through holes are circumferentially and evenly distributed on the annular wall of the rotating ring. A filter net close to the outer surface of the rotating ring is installed in the placement through hole. A plurality of second scraping strips are circumferentially and evenly distributed and used for scraping the outer surface of the conical pipe are installed at the upper end of the outer surface of the rotating ring, and a plurality of third scraping strips are circumferentially and evenly distributed and used for scraping the outer surface of the support ring are installed at the lower end of the outer surface of the rotating ring. A rotating support chain is connected to the inner wall of the rotating ring.

[0012] According to an embodiment of the present invention, the scraping mechanism includes a support plate installed on the inner wall of the drying tank, and a scraping strip is installed at one end of the support plate away from the inner wall of the drying tank, and the scraping strip is attached to the outer surface of the rotating ring.

[0013] According to an embodiment of the present invention, the supporting mechanism includes a supporting tray installed at the lower end of the support ring. A plurality of fixing columns are circumferentially and evenly distributed on the annular side wall of the supporting tray, and one end of the fixing column away from the supporting tray is fixedly connected to the inner wall of the drying tank.

[0014] According to an embodiment of the present invention, the driving mechanism includes a rotating rod that penetrates and is rotatably connected to the pipe wall of the discharge pipe. The rotating rod is fixedly connected to the spiral plate. The lower end of the rotating rod is fixedly connected to the output shaft of a driving motor, and the driving motor is fixedly connected to the outer wall of the discharge pipe through a fixing plate. The upper end of the rotating rod is fixedly connected to the rotating rod, and the knocking mechanism is located between the connecting column and the rotating rod.

[0015] According to an embodiment of the present invention, the knocking mechanism includes a rectangular frame slidably and penetratingly connected to the rotating rod. A connecting spring is installed between the upper end of the bottom wall of the rectangular frame and the lower end of the rotating rod. The upper end of the rectangular frame is integrally formed with a right-angled triangular block with an upward inclined surface. A horizontally arranged knocking rod is installed on the vertical surface of the right-angled triangular block opposite to the inclined surface.

[0016] According to an embodiment of the present invention, the rotating chain includes a cylindrical rod penetrating and concentrically rotatably connected to the bearing tray. The lower end of the cylindrical rod is fixedly connected to the rotating rod. A plurality of circumferentially uniformly distributed connecting strips are installed at the upper end of the cylindrical rod. The end of the connecting strip away from the cylindrical rod is fixedly connected to the inner wall of the rotating ring.

[0017] In addition, the present invention also provides a spray drying method for Cyperus esculentus, which specifically includes the following steps: S1: Fix the drying tank at the working position through the supporting device, then connect the discharge pipe to the existing collecting device, and then connect the feeding device to the existing gas heater and the existing container filled with the wet material liquid of Cyperus esculentus respectively. Then connect the suction pipe to the existing cyclone separation equipment.

[0018] S2: Start the driving mechanism. The driving mechanism drives the filtering mechanism to rotate, and at the same time, the driving mechanism drives the knocking mechanism to rotate through the rotating rod.

[0019] S3: The gas heater injects hot air into the feeding device. At the same time, the container injects the wet material liquid into the feeding device. The feeding device atomizes the wet material liquid and injects it into the drying tank for rapid drying.

[0020] S4: The dried material moves downward by its own gravity and enters the collecting device through the discharge pipe. The hot air generated by drying enters the cyclone separation equipment through the suction pipe and is discharged.

[0021] S5: Repeat steps S1-S4 until all the wet material liquid is dried and the work ends.

[0022] In summary, the present invention has the following beneficial effects: 1. The filtering mechanism adopted in the present invention effectively increases the area of the hot air discharge port, improves the efficiency of hot air discharge, and the filtering mechanism cooperates with the scraping mechanism to continuously scrape the filter screen during the drying operation, avoiding the blockage of the hot air discharge port after drying, thus preventing a large amount of hot air from being discharged from the discharge port, effectively reducing the impact of hot air on the collection of the dried Cyperus esculentus material, ensuring the discharge rate of the Cyperus esculentus material, and also avoiding the phenomenon of over-drying of the Cyperus esculentus material.

[0023] 2. The suction device, knocking device and driving device adopted by the present invention cooperate with each other, and can turn on the vibration-assisted discharging mode during the drying process. At the same time, combined with the scraping treatment of the suction device on its own surface and the scraping treatment of the knocking device on the bottom of the drying tank, the dried tiger nut materials can be effectively discharged into the discharge pipe, ensuring the discharge rate of the tiger nut materials and avoiding the waste of tiger nut paste materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 Fig. shows a three-dimensional structure diagram of the first perspective of the present invention.

[0026] Figure 2 Fig. shows a three-dimensional structure diagram of the second perspective of the present invention.

[0027] Figure 3 Fig. shows the front view of the present invention.

[0028] Figure 4 Fig. shows the left view of the present invention.

[0029] Figure 5 Fig. shows Figure 4 the cross-sectional view taken along A-A in

[0030] Figure 6 Fig. shows Figure 5 the enlarged view of area N in

[0031] Figure 7 Fig. shows the structural diagram of the suction device of the present invention.

[0032] Figure 8 Fig. shows the structural diagram of the drying tank, discharge pipe, driving device and knocking device of the present invention.

[0033] Figure 9 Fig. shows Figure 8 the enlarged view of area X in

[0034] Among them, the above-mentioned drawings include the following reference numerals: 1, drying tank; 2, supporting device; 21, circular ring plate; 22, supporting column; 3, feeding device; 31, atomizer; 32, feeding pipe; 33, inlet pipe; 4, discharge pipe; 5, suction device; 51, suction pipe; 52, conical pipe; 53, filtering mechanism; 531, rotating ring; 532, placing through hole; 533, filter screen; 534, second scraping strip; 535, third scraping strip; 536, rotating chain; 5361, cylindrical rod; 5362, connecting strip; 54, scraping mechanism; 541, support plate; 542, scraping strip; 55, support ring; 56, supporting mechanism; 561, supporting tray; 562, fixing column; 6, driving device; 61, driving mechanism; 611, rotating rod; 612, driving motor; 62, spiral plate; 7, knocking device; 71, rotating rod; 72, knocking mechanism; 721, rectangular frame; 722, connecting spring; 723, knocking rod; 73, connecting column; 74, first scraping strip. Detailed implementation manners

[0035] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] Refer to Figures 1 - 4 , an oil tiger nut spray drying device, including a drying tank 1, a supporting device 2 is installed on the outer surface of the drying tank 1, the supporting device 2 includes a circular ring plate 21 sleeved on the outer surface of the drying tank 1, and a plurality of support columns 22 evenly distributed circumferentially are installed at the lower end of the circular ring plate 21, and a discharge pipe 4 with an L-shaped structure is installed at the lower end of the drying tank 1.

[0037] During specific work, the drying tank 1 is lifted to the working position by an existing crane, and the plurality of support columns 22 support and limit the drying tank 1 through the circular ring plate 21, and then the discharge pipe 4 is connected to an existing collection device.

[0038] Refer to Figure 1 and Figure 5, the Cyperus esculentus spray drying equipment further includes a suction device 5, the suction device 5 is connected to the drying tank 1, the suction device 5 includes a suction pipe 51 installed through the tank wall of the drying tank 1 and having an L-shaped structure, the lower end of the vertical section of the suction pipe 51 is installed with a conical pipe 52 located inside the drying tank 1, the lower end of the conical pipe 52 is connected with a filtering mechanism 53, a plurality of scraping mechanisms 54 are circumferentially and evenly distributed on the outer periphery of the filtering mechanism 53, the scraping mechanisms 54 are fixedly connected with the inner wall of the drying tank 1, the lower end of the filtering mechanism 53 is connected with a support ring 55, the lower end of the support ring 55 is connected with a supporting mechanism 56, and the supporting mechanism 56 is connected with the inner wall of the drying tank 1.

[0039] Refer to Figures 5 - 7 , the supporting mechanism 56 includes a supporting tray 561 installed at the lower end of the support ring 55, a plurality of fixing columns 562 are circumferentially and evenly distributed on the annular side wall of the supporting tray 561, and the end of the fixing column 562 far away from the supporting tray 561 is fixedly connected with the inner wall of the drying tank 1.

[0040] During specific operation, the drying tank 1 limits the supporting tray 561 through a plurality of fixing columns 562, the supporting tray 561 limits the support ring 55, at the same time, the suction pipe 51 connected to the pipe wall of the drying tank 1 limits the conical pipe 52, the support ring 55 and the conical pipe 52 limit the filtering mechanism 53, and then the suction pipe 51 is connected with an existing cyclone separation device.

[0041] Refer to Figure 1 、 Figure 2 and Figure 5 , the Cyperus esculentus spray drying equipment further includes a driving device 6, the driving device 6 is connected to the discharge pipe 4, the driving device 6 includes a driving mechanism 61 connected to the discharge pipe 4, and a spiral plate 62 located inside the drying tank 1 is connected to the driving mechanism 61.

[0042] Refer to Figure 2 and Figure 5 , the driving mechanism 61 includes a rotating rod 611 installed through and rotatably connected to the pipe wall of the discharge pipe 4, the rotating rod 611 is fixedly connected with the spiral plate 62, the lower end of the rotating rod 611 is fixedly connected with the output shaft of a driving motor 612, and the driving motor 612 is fixedly connected with the outer wall of the discharge pipe 4 through a fixing plate.

[0043] During specific operation, initially connect the driving motor 612 to an existing external power source, start the driving motor 612, the driving motor 612 drives the rotating rod 611 to rotate, the rotating rod 611 drives the spiral plate 62 to rotate, and the rotating spiral plate 62 is used for discharging the dried Cyperus esculentus paste material, so as to avoid the phenomenon of blockage when the dried Cyperus esculentus paste material falls.

[0044] Refer toFigure 5 and Figure 7 The filtering mechanism 53 includes a rotating ring 531 which is rotatably connected to the lower end of the conical tube 52 and has a conical structure. The lower end of the rotating ring 531 is rotatably connected to the upper end of the support ring 55. A plurality of placement through holes 532 evenly distributed in the circumferential direction are formed in the circumferential wall of the rotating ring 531. A filter screen 533 close to the outer surface of the rotating ring 531 is installed in the placement through hole 532. A plurality of second scraping strips 534 evenly distributed in the circumferential direction and used for scraping the outer surface of the conical tube 52 are installed at the upper end of the outer surface of the rotating ring 531. A plurality of third scraping strips 535 evenly distributed in the circumferential direction and used for scraping the outer surface of the support ring 55 are installed at the lower end of the outer surface of the rotating ring 531. A rotating support chain 536 is connected to the inner wall of the rotating ring 531.

[0045] Refer to Figure 5 and Figure 7 The rotating support chain 536 includes a cylindrical rod 5361 which passes through and is concentrically rotatably connected to the bearing tray 561. The lower end of the cylindrical rod 5361 is fixedly connected to the rotating rod 611. A plurality of connecting strips 5362 evenly distributed in the circumferential direction are installed at the upper end of the cylindrical rod 5361. The end of the connecting strip 5362 far from the cylindrical rod 5361 is fixedly connected to the inner wall of the rotating ring 531.

[0046] During specific operation, while the rotating rod 611 rotates, it drives the cylindrical rod 5361 to rotate. The cylindrical rod 5361 drives the rotating ring 531 to rotate through a plurality of connecting strips 5362. The rotating ring 531 drives a plurality of filter screens 533 to rotate. At the same time, the rotating ring 531 drives the second scraping strips 534 and the third scraping strips 535 to rotate. The rotating second scraping strips 534 can scrape off the dried oil bean paste material falling on the conical tube 52, and the rotating third scraping strips 535 can scrape off the dried oil bean paste material falling on the outer surface of the support ring 55, ensuring that the oil bean paste material fully falls, and greatly reducing the waste rate of the oil bean paste material.

[0047] Refer to Figure 5 and Figure 7 The scraping mechanism 54 includes a support plate 541 installed on the inner wall of the drying tank 1. One end of the support plate 541 far from the inner wall of the drying tank 1 is installed with a scraping strip 542. The scraping strip 542 is attached to the outer surface of the rotating ring 531. A brush structure (not shown in the figure) is provided at the end of the scraping strip 542 far from the support plate 541.

[0048] During specific operation, the rotating rotating ring 531 drives multiple filter meshes 533 to rotate. The filter meshes 533 are made of metal and have a high mesh number. The rotating filter meshes 533 come into contact with the scraping strip 542. The scraping strip 542 drives the brush structure arranged thereon to continuously scrape the outer surface of the filter meshes 533, thereby avoiding the phenomenon of blockage of the filter meshes 533, ensuring that a large amount of hot air after drying can pass through the multiple filter meshes 533 and enter the conical tube 52 during the drying process, and then enter the cyclone separation device through the suction pipe 51, thereby discharging the hot air.

[0049] Refer to Figure 5 、 Figure 6 、 Figure 8 and Figure 9 ,the oil-yielding nut spray drying device further includes a knocking device 7. The knocking device 7 is connected to the driving mechanism 61 and is located below the supporting mechanism 56. The knocking device 7 includes a rotating rod 71 connected to the driving mechanism 61. A knocking mechanism 72 is connected to the rotating rod 71. A connecting column 73 is installed at a position of the lower end of the rotating rod 71 close to the tank wall of the drying tank 1. A first scraping strip 74 is installed at the lower end of the connecting column 73. The upper end of the rotating rod 611 is fixedly connected to the rotating rod 71. The knocking mechanism 72 is located between the connecting column 73 and the rotating rod 611.

[0050] Refer to Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 ,the knocking mechanism 72 includes a rectangular frame 721 slidably penetrating and connected to the rotating rod 71. A connecting spring 722 is installed between the upper end of the bottom wall of the rectangular frame 721 and the lower end of the rotating rod 71. The upper end of the rectangular frame 721 is integrally formed with a right-angled triangular block with an upward inclined surface. A knocking rod 723 in a horizontal state is installed on the vertical surface of the right-angled triangular block opposite to the inclined surface.

[0051] During specific operation, the rotating rod 611 drives the rotating rod 71 to rotate. The rotating rod 71 drives the first scraping strip 74 to rotate through the connecting column 73. The first scraping strip 74 scrapes the bottom conical inner wall of the drying tank 1, facilitating the dried oil bean paste material falling onto the bottom inner wall of the drying tank 1 to fall into the discharge pipe 4. At the same time, the rotating rod 71 drives the rectangular frame 721, the knocking rod 723, and the right-angled triangular block to rotate with the rotating rod 611. During the process that the inclined surface of the right-angled triangular block contacts and continues to rotate with the fixed column 562, the right-angled triangular block will receive a downward pushing force. Subsequently, the right-angled triangular block drives the rectangular frame 721 to slide downward along the rotating rod 71 and stretch the connecting spring 722. At the same time, the right-angled triangular block drives the knocking rod 723 to move downward. When the right-angled triangular block separates from the fixed column 562, the stretched connecting spring 722 resets and drives the knocking rod 723 to reset upward through the rectangular frame 721. The knocking rod 723 knocks on the fixed column 562, and the fixed column 562 transmits the vibration force generated by the knocking to the support ring 55, the rotating ring 531, and the conical pipe 52 through the bearing tray 561, further shaking off the oil bean paste material falling onto the support ring 55, the rotating ring 531, and the conical pipe 52.

[0052] Refer to Figure 1 , Figure 2 and Figure 5 , a feeding device 3 is installed at the upper end of the drying tank 1. The feeding device 3 includes a sprayer 31 installed through the top wall of the drying tank 1. A feeding pipe 32 is installed at the upper end of the sprayer 31, and an air inlet pipe 33 is installed on the side wall of the sprayer 31.

[0053] During specific operation, initially, the air inlet pipe 33 is connected to an existing gas heater, and then the feeding pipe 32 is connected to an existing container filled with wet oil cyperus rotundus liquid. When working, start the gas heater. The gas heater injects hot air into the air inlet pipe 33, and the air inlet pipe 33 injects the hot air into the sprayer 31. At the same time, the wet oil cyperus rotundus liquid is injected from the container into the feeding pipe 32 through an existing pump body. The wet oil cyperus rotundus material in the feeding pipe 32 enters the sprayer 31. The sprayer 31 atomizes the wet oil cyperus rotundus material and injects it into the drying tank 1. The hot air dries the atomized wet oil cyperus rotundus material. The dried oil cyperus material falls onto the intermittently vibrating support ring 55, rotating ring 531, and conical pipe 52. At the same time, the rotating second scraping strip 534 and the third scraping strip 535 scrape the outer surfaces of the conical pipe 52 and the support ring 55, effectively separating the oil bean paste material from the conical pipe 52 and the support ring 55. And the remaining small part of the hot air in the drying tank 1 can also perform blanking on the dried oil cyperus material, blowing the oil cyperus material to the bottom of the drying tank 1. The rotating spiral plate 62 discharges the dried oil bean paste material. The oil bean paste material enters the discharge pipe 4 and then enters the collection device. Until all the wet oil cyperus rotundus liquid is completely dried, the drying ends.

[0054] In addition, the present invention also provides a spray drying method for Cyperus esculentus, which specifically includes the following steps: S1: Fix the drying tank 1 at the working position through the supporting device 2, then connect the discharge pipe 4 to the existing collecting device, and then connect the feeding device 3 to the existing gas heater and the existing container filled with wet Cyperus esculentus liquid respectively, and connect the suction pipe 51 to the existing cyclone separation device.

[0055] S2: Start the driving mechanism 61. The driving mechanism 61 drives the filtering mechanism 53 to rotate, and at the same time, the driving mechanism 61 drives the knocking mechanism 72 to rotate through the rotating rod 71.

[0056] S3: The gas heater injects hot air into the feeding device 3, and at the same time, the container injects the wet liquid into the feeding device 3. The feeding device 3 atomizes the wet liquid and injects it into the drying tank 1 for rapid drying.

[0057] S4: The dried material moves downward by its own gravity and enters the collecting device through the discharge pipe 4. The hot gas generated by drying enters the cyclone separation device through the suction pipe 51 and is discharged.

[0058] S5: Repeat steps S1 - S4 until all the wet liquid is dried, and then the work ends.

[0059] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0060] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0061] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An oil tiger nut spray drying device, characterized in that: It includes a drying tank, a supporting device is installed on the outer surface of the drying tank, a feeding device is installed at the upper end of the drying tank, and an L-shaped discharge pipe is installed at the lower end of the drying tank; A suction device, which is connected to the drying tank. The suction device includes a suction pipe that is installed through the tank wall of the drying tank and has an L-shaped structure. The lower end of the vertical section of the suction pipe is provided with a conical pipe located inside the drying tank. The lower end of the conical pipe is connected to a filtering mechanism. A plurality of scraping mechanisms are evenly distributed circumferentially on the outer periphery of the filtering mechanism. The scraping mechanisms are fixedly connected to the inner wall of the drying tank. The lower end of the filtering mechanism is connected to a support ring, and the lower end of the support ring is connected to a supporting mechanism. The supporting mechanism is connected to the inner wall of the drying tank; A driving device, which is connected to the discharge pipe. The driving device includes a driving mechanism connected to the discharge pipe, and a spiral plate located inside the drying tank is connected to the driving mechanism; A knocking device, which is connected to the driving mechanism and is located below the supporting mechanism. The knocking device includes a rotating rod connected to the driving mechanism, a knocking mechanism is connected to the rotating rod, a connecting column is installed at a position where the lower end of the rotating rod is close to the tank wall of the drying tank, and a first scraping strip is installed at the lower end of the connecting column; The filtering mechanism includes a rotating ring that is rotatably connected to the lower end of the conical pipe and has a conical structure. The lower end of the rotating ring is rotatably connected to the upper end of the support ring. A plurality of placing through holes are evenly distributed circumferentially on the annular wall of the rotating ring. A filter screen close to the outer surface of the rotating ring is installed in the placing through holes. A plurality of scraping strips for scraping the outer surface of the conical pipe are evenly distributed circumferentially at the upper end of the outer surface of the rotating ring, and a plurality of scraping strips for scraping the outer surface of the support ring are evenly distributed circumferentially at the lower end of the outer surface of the rotating ring; The scraping mechanism includes a scraping strip. The scraping strip is attached to the outer surface of the rotating ring. When the rotating ring rotates, the rotating ring drives a plurality of filter screens to rotate. At the same time, the rotating ring drives the second scraping strip and the third scraping strip to rotate.

2. The oil tiger nut spray drying equipment according to claim 1, characterized in that: The supporting device includes an annular plate sleeved on the outer surface of the drying tank, and a plurality of supporting columns are installed at the lower end of the annular plate and are evenly distributed circumferentially.

3. The oil cyperus esculentus spray drying equipment according to claim 1, characterized in that: The feeding device includes a sprayer installed through the top wall of the drying tank. A feeding pipe is installed at the upper end of the sprayer, and an air inlet pipe is installed on the side wall of the sprayer.

4. The spray drying equipment for Cyperus esculentus L. according to claim 1, wherein: A rotating chain is connected to the inner wall of the rotating ring.

5. The oil cyperus esculentus spray drying equipment according to claim 4, wherein: The scraping mechanism further includes a support plate installed on the inner wall of the drying tank. A scraping strip is installed at one end of the support plate away from the inner wall of the drying tank.

6. The oil cyperus esculentus spray drying equipment according to claim 4, wherein: The supporting mechanism includes a supporting tray installed at the lower end of the support ring. A plurality of fixing columns are evenly distributed circumferentially on the annular side wall of the supporting tray. One end of the fixing column away from the supporting tray is fixedly connected to the inner wall of the drying tank.

7. The spray drying equipment for Cyperus esculentus according to claim 1, characterized in that: The driving mechanism includes a rotating rod that penetrates and is rotatably connected to the pipe wall of the discharge pipe. The rotating rod is fixedly connected to the spiral plate. The lower end of the rotating rod is fixedly connected to the output shaft of a driving motor. The driving motor is fixedly connected to the outer wall of the discharge pipe through a fixing plate. The upper end of the rotating rod is fixedly connected to the rotating rod. The knocking mechanism is located between the connecting column and the rotating rod.

8. The oil tiger nut spray drying equipment according to claim 1, characterized in that: The knocking mechanism includes a rectangular frame slidably and penetratingly connected to the rotating rod. A connecting spring is installed between the upper end of the bottom wall of the rectangular frame and the lower end of the rotating rod. A right-angled triangular block with an upward inclined surface is integrally formed at the upper end of the rectangular frame. A horizontally arranged knocking rod is installed on the vertical surface of the right-angled triangular block opposite to the inclined surface.

9. The oil tiger nut spray drying equipment according to claim 6, characterized in that: The rotating chain includes a cylindrical rod penetrating and concentrically rotatably connected to the supporting tray. The lower end of the cylindrical rod is fixedly connected to the rotating rod. A plurality of circumferentially uniformly distributed connecting bars are installed at the upper end of the cylindrical rod. One end of the connecting bar away from the cylindrical rod is fixedly connected to the inner wall of the rotating ring.

10. The spray drying equipment for Cyperus esculentus according to claim 1, characterized in that: The method for spray-drying tiger nuts using the above tiger nut spray-drying equipment specifically includes the following steps: S1: Fix the drying tank at the working position through the supporting device, then connect the discharge pipe to the existing collecting device. Subsequently, connect the feeding device to the existing gas heater and the existing container filled with the wet tiger nut liquid respectively. Then connect the suction pipe to the existing cyclone separation equipment; S2: Start the driving mechanism. The driving mechanism drives the filtering mechanism to rotate. At the same time, the driving mechanism drives the knocking mechanism to rotate through the rotating rod; S3: The gas heater injects hot air into the feeding device. At the same time, the container injects the wet liquid into the feeding device. The feeding device atomizes the wet liquid and injects it into the drying tank for rapid drying; S4: The dried material moves downward by its own gravity and enters the collecting device through the discharge pipe. The hot gas generated by drying enters the cyclone separation equipment through the suction pipe and is discharged; S5: Repeat steps S1 - S4 until all the wet liquid is dried and the work ends.

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