Disc dryer

Abstract

The invention relates to the technical field of dryers, and discloses a disc dryer which comprises a tower body, a discharging port is formed in the bottom of the tower body, a top cover is arranged at the top of the tower body, a feeding hole is formed in the side wall of the top cover, an air outlet pipe is arranged at the top of the top cover, and the extending end of the air outlet pipe is connected with an exhaust pipe. A base is fixed to the top of the top cover, a driving mechanism is fixed to the top of the base, a main shaft is arranged in the tower body, and a cooling layer is arranged in the bottom end of the tower body; the main shaft structure is arranged in the center of the tower body, the main shaft is of a hollow structure, the air inlet is formed in the main shaft end located at the end opening of the air inlet pipe, after a thermal medium enters the direct blowing layer, part of the thermal medium enters the main shaft through the air inlet, and the thermal medium is directly conveyed to the pre-desolventizing layer and the desolventizing layer above the direct blowing layer through the main shaft; therefore, air in the pre-desolventizing layer and the desolventizing layer can be rapidly heated.

Description

Technical Field

[0001] The invention relates to the technical field of dryers, in particular to a disc dryer. Background Art

[0002] The dryer is a drying equipment used in the production and processing of wet meal of edible oil. The existing edible oil production process includes the use of oil beans as raw materials to produce oil. In its production process, the raw materials are first pretreated and then the wet meal is obtained through an extractor. The working principle of the dryer is to feed the wet meal into the dryer through the feed port, and then use the heating medium to enter from the bottom of the dryer. The heat medium heats the disk surface, so that the material forms a layer of pile on the disk surface. With the action of the scraper on the disk surface, the material is constantly turned over and gradually dried.

[0003] When the existing dryer is in use, a heat medium is sent into the machine from the air inlet. As the heat medium is continuously transported, the inside of the machine is heated and the wet meal is dried on the layered disc structure inside the machine, thereby achieving evaporation of water and solvent. However, after the heat medium enters the dryer, it is blocked by the layered disc structure. The higher the heat medium goes, the lower the heat. After reaching the uppermost disc structure of the dryer, the air above the uppermost disc structure is difficult to be heated to the temperature required for drying the wet meal, resulting in the need to continuously apply more and greater heat from the outside of the dryer to meet the drying requirements. A large amount of energy consumption is required in the wet meal drying process, and the use effect and economic benefits are poor. Summary of the invention

[0004] The present invention provides a disc dryer to solve the problems of large energy consumption when heat medium enters the dryer and poor use effect and economic benefit.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a disc dryer comprises a tower body, a discharge port is arranged at the bottom of the tower body, a top cover is arranged at the top of the tower body, a feed hole is arranged at the side wall of the top cover, an air outlet pipe is arranged at the top of the top cover, an extended end of the air outlet pipe is connected to an exhaust pipe, a base is fixed at the top of the top cover, a driving mechanism is fixed at the top of the base, a main shaft is arranged inside the tower body, a cooling layer is arranged inside the bottom end of the tower body, a direct blowing layer is arranged above the cooling layer, an air inlet pipe is arranged at a position of the tower body close to the direct blowing layer, a desolvation layer is arranged above the direct blowing layer, a pre-desolvation layer is arranged above the desolvation layer, the interior of the main shaft is a hollow structure, an air inlet is arranged on the outer wall of the bottom end of the main shaft, the air inlet is located in the direct blowing layer, a plurality of exhaust ports are arranged on the outer wall of the main shaft, each of the exhaust ports corresponds to the inner space of the desolvation layer and the pre-desolvation layer respectively.

[0006] Preferably, the direct blowing layer includes a lower direct blowing layer disk body, the air inlet is located above the lower direct blowing layer disk body, an upper direct blowing layer disk body is also arranged above the lower direct blowing layer disk body, an upper direct blowing layer tube body is arranged above the upper direct blowing layer disk body, a bearing fixing plate is arranged below the lower direct blowing layer disk body, a bearing is fixed in the middle of the bearing fixing plate, and the bottom end of the main shaft passes through the inner liner ring of the bearing.

[0007] Preferably, the desolvation layer comprises a lower desolvation layer disc body arranged above the upper direct blowing layer disc body, an intermediate desolvation layer disc body is arranged above the lower desolvation layer disc body, and an upper desolvation layer disc body is arranged above the intermediate desolvation layer disc body.

[0008] Preferably, the pre-desolventizing layer comprises a lower pre-desolventizing layer disc body arranged above an upper desolventizing layer disc body, an intermediate pre-desolventizing layer disc body is arranged above the lower pre-desolventizing layer disc body, and an upper pre-desolventizing layer disc body is arranged above the intermediate pre-desolventizing layer disc body.

[0009] Preferably, an air-conducting layer is arranged outside the desolvation layer and the pre-desolvation layer, and the air-conducting layer includes an upper direct-blowing layer tube body arranged on the top of the upper direct-blowing layer disk body, a lower desolvation layer tube body is arranged on the top of the lower desolvation layer disk body, an intermediate desolvation layer tube body is arranged on the top of the intermediate desolvation layer disk body, an upper desolvation layer tube body is arranged on the top of the upper desolvation layer disk body, a lower pre-desolvation layer tube body is arranged on the top of the lower pre-desolvation layer disk body, and an intermediate pre-desolvation layer tube body is arranged on the top of the intermediate pre-desolvation layer disk body.

[0010] Preferably, the tops of the intermediate pre-desolvent layer tube body, the lower pre-desolvent layer tube body, the upper desolvent layer tube body, the intermediate desolvent layer tube body, the lower desolvent layer tube body and the upper direct blowing layer tube body are all provided with pores, and the inner walls of the intermediate pre-desolvent layer tube body, the lower pre-desolvent layer tube body, the upper desolvent layer tube body, the intermediate desolvent layer tube body, the lower desolvent layer tube body and the upper direct blowing layer tube body are all provided with through holes corresponding to the pores.

[0011] Preferably, the outer wall of the main shaft is provided with a dispersion component, and the dispersion component includes a fixed tube arranged on the outer wall of the main shaft, the outer wall of the fixed tube is provided with a rake, one side of the rake is provided with a scraper, one side of the scraper is provided with a pressure rod, and the outer wall of the fixed tube is also provided with a positioning ring, the interior of the rake is a hollow structure, and a plurality of holes are opened at the bottom of the rake, one end of the rake is communicated with the interior of the main shaft, and a plurality of rod bodies are provided at the bottom of the rake.

[0012] Preferably, a squeezing assembly is provided at the bottom of the pressure rod, and the squeezing assembly includes a mounting tube, a telescopic rod is provided inside the mounting tube, a spring is sleeved outside the telescopic rod, and a squeezing ball is fixed to the bottom end of the telescopic rod.

[0013] Preferably, a support rod is provided at the bottom of the positioning ring, a rollable track ball is provided at the end of the support rod, a slide rail is provided below the track ball, a groove is provided at the top of the slide rail, and a push rod is fixed to the side wall of the support rod, the end of the push rod is inclined downward and extends into the groove.

[0014] Preferably, a breaking up assembly is also provided at the bottom end of the tower body, and the breaking up assembly includes a bearing seat fixed to the outer wall of the tower body, a three-phase motor is fixed to one side of the bearing seat, the output shaft of the three-phase motor extends to the interior of the tower body and is connected to a sphere, the interior of the sphere is a hollow structure, and the outer wall of the sphere is a hollow structure, an injection pipe is provided below the sphere, the end of the injection pipe is connected to a cooling pipe, the end of the cooling pipe extends to the outside of the tower body and is connected to a fan.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are: (1) The main shaft structure is arranged in the center of the tower body. The main shaft is a hollow structure. An air inlet is opened at the main shaft end located at the air inlet port. After the hot medium enters the direct blowing layer, part of the hot medium enters the main shaft through the air inlet, and directly transports the hot medium to the pre-desolventizing layer and the desolventizing layer above the direct blowing layer through the main shaft, so that the air in the pre-desolventizing layer and the desolventizing layer can be quickly heated, so that the pre-desolventizing layer and the desolventizing layer are quickly heated, and the inside of the tower body is heated evenly, so as to meet the drying requirements of the solvent in the wet meal, effectively improve the heat utilization rate, reduce heat loss, and improve economic benefits.

[0016] (2) An air guide layer is arranged outside the direct blowing layer, the desolventizing layer and the pre-desolventizing layer. The air guide layer includes a plurality of pipe bodies. Each pipe body is provided with air holes. Each pipe body corresponds to a pre-desolventizing layer or a desolventizing layer. After the heat medium passes through the direct blowing layer, the air is heated and can flow upward through the air holes in the pipe body. The hot air enters the pre-desolventizing layer or the desolventizing layer, which can increase the speed at which the heat medium enters the pre-desolventizing layer or the desolventizing layer, thereby accelerating the heating speed of the internal environment of the tower body, improving the overall heating efficiency of the tower body, and reducing the waiting time of the preheating tower.

[0017] (3) By arranging a dispersion component on the outer wall of the main shaft, the dispersion component mainly includes a rake, a scraper and a pressure rod structure. The rake, the scraper and the pressure rod are arranged in a circular distribution around the main shaft and move with the main shaft when the main shaft rotates. This is conducive to efficiently breaking up the wet meal above the tray assembly, so that the hot air can fully contact the wet meal, the wet meal is heated more evenly, and the drying efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the tower body of the present invention; Figure 3 A perspective view of the disassembled components; Figure 4 for Figure 2 Enlarged view of part A in the middle; Figure 5 for Figure 2 Enlarged view of middle part B; Figure 6 This is an exploded view of the gas-conducting layer; Figure 7 A top view of the middle pre-desolventizing layer tube body and the middle pre-desolventizing layer disc body; Figure 8 A perspective view of the spindle and pallet assembly; Fig. 9 A perspective view of a dispersed component; Fig.10 for Fig. 9 The state diagram after the fixed pipe is removed; Fig.11 is a schematic diagram of the structure of the extrusion component; Fig.12 is a schematic diagram of the internal structure of the extrusion component; Fig.13 The exploded view of the locating ring and the slide rail; Fig.14 for Fig.13 Enlarged view of part C in the middle.

[0020] In the figure: 1. Tower body; 2. Air inlet pipe; 3. Top cover; 4. Base; 5. Driving mechanism; 6. Exhaust pipe; 7. Cooling pipe; 8. Fan; 9. Sphere; 10. Jet pipe; 11. main shaft; 111. upper pre-desolventizing layer disc; 12. Air guide layer; 13. Three-phase motor; 14. Bearing seat; 15. Air inlet; 16. Rake; 17. Pressure rod; 171. Extrusion assembly; 18. Lower direct blowing layer disc; 19. Bearing fixing plate; 20. Air outlet pipe; 21. intermediate pre-desolventizing layer tube body; 211. pores; 22. middle pre-desolvent layer disc; 23. lower pre-desolvent layer tube; 24. lower pre-desolvent layer disc; 25. upper desolvent layer tube; 26. upper desolvent layer disc; 27. middle desolvent layer tube; 28. middle desolvent layer disc; 29. ​​lower desolvent layer tube; 30. lower desolvent layer disc; 31. upper direct blowing layer tube body; 311. upper direct blowing layer plate body; 32. Exhaust port; 33. Dispersion assembly; 331. Fixing tube; 332. Positioning ring; 333. Slide rail; 334. Scraper; 335. Groove; 34. Mounting tube; 35. Telescopic rod; 36. Squeeze ball; 37. Spring; 38. Track ball; 39. Push rod; 40. Support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0022] Embodiment 1 In this embodiment, Figure 1-Figure 14 As shown, a disc dryer comprises a tower body 1, a discharge port is arranged at the bottom of the tower body 1, a top cover 3 is arranged at the top of the tower body 1, a feed hole is opened on the side wall of the top cover 3, an air outlet pipe 20 is arranged at the top of the top cover 3, an exhaust pipe 6 is connected to the extended end of the air outlet pipe 20, a base 4 is fixed on the top of the top cover 3, a driving mechanism 5 is fixed on the top of the base 4, the driving mechanism 5 comprises a stepping motor and a reduction mechanism, this part is the prior art, a main shaft 11 is arranged inside the tower body 1, and the driving mechanism 5 drives the main shaft 11 is rotated, a cooling layer is provided inside the bottom end of the tower body 1, a direct blowing layer is provided above the cooling layer, an air inlet pipe 2 is provided at a position of the tower body 1 close to the direct blowing layer, a desolventizing layer is provided above the direct blowing layer, a pre-desolventizing layer is provided above the desolventizing layer, the main shaft 11 is a hollow structure inside, an air inlet 15 is provided on the outer wall of the bottom end of the main shaft 11, the air inlet 15 is located in the direct blowing layer, a plurality of exhaust ports 32 are provided on the outer wall of the main shaft 11, and each exhaust port 32 corresponds to the inner space of the desolventizing layer and the pre-desolventizing layer respectively; In this embodiment, the wet meal enters from the feed hole on the top of the top cover 3. During the drying process, the steam evaporated by the hot air is discharged from the air outlet pipe 20 and transported to the condensation mechanism through the exhaust pipe 6. The solvent and water in the steam are separated by the external condensation mechanism to facilitate the recovery of the solvent in the wet meal. It should be noted that wet meal is mainly composed of solvent, oil, protein, water and ash. Wet meal usually contains about 25% solvent, which needs to be removed in the subsequent desolventizing, drying and cooling processes. After drying, the oil is extracted through further processing to obtain a purer finished meal; The moisture content in wet meal is relatively high. Drying can effectively avoid problems such as heating, mildew, and agglomeration during storage and transportation, thereby improving the stability of wet meal. Specifically, the direct blowing layer includes a lower direct blowing layer disc 18, the air inlet 15 is located above the lower direct blowing layer disc 18, an upper direct blowing layer disc 311 is also arranged above the lower direct blowing layer disc 18, an upper direct blowing layer tube 31 is arranged above the upper direct blowing layer disc 311, a bearing fixing plate 19 is arranged below the lower direct blowing layer disc 18, a bearing is fixed in the middle of the bearing fixing plate 19, and the bottom end of the main shaft 11 passes through the inner liner ring of the bearing; Specifically, the desolventizing layer includes a lower desolventizing layer disc 30 disposed above the upper direct blowing layer disc 311, an intermediate desolventizing layer disc 28 is disposed above the lower desolventizing layer disc 30, and an upper desolventizing layer disc 26 is disposed above the intermediate desolventizing layer disc 28; Specifically, the pre-desolventizing layer includes a lower pre-desolventizing layer disc 24 disposed above an upper desolventizing layer disc 26, an intermediate pre-desolventizing layer disc 22 disposed above the lower pre-desolventizing layer disc 24, and an upper pre-desolventizing layer disc 111 disposed above the intermediate pre-desolventizing layer disc 22; In this embodiment, it should be noted that holes are provided on the tops of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30, and the wet meal passes through the upper pre-desolventizing layer disc 111, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28, the lower desolventizing layer disc 30, the upper direct blowing layer disc 311, and the lower direct blowing layer disc 18 from top to bottom, until it passes through the hole on the top of the lower direct blowing layer disc 18 and then falls into the cooling layer.

[0023] Embodiment 2 like Figure 2 , Figure 4 , Figure 6 and Figure 8As shown, in this embodiment, an air guide layer 12 is arranged outside the desolventizing layer and the pre-desolventizing layer, and the air guide layer 12 includes an upper direct blowing layer tube body 31 arranged on the top of the upper direct blowing layer disc body 311, a lower desolventizing layer tube body 29 is arranged on the top of the lower desolventizing layer disc body 30, an intermediate desolventizing layer tube body 27 is arranged on the top of the intermediate desolventizing layer disc body 28, an upper desolventizing layer tube body 25 is arranged on the top of the upper desolventizing layer disc body 26, a lower pre-desolventizing layer tube body 23 is arranged on the top of the lower pre-desolventizing layer disc body 24, and an intermediate pre-desolventizing layer tube body 21 is arranged on the top of the intermediate pre-desolventizing layer disc body 22; The upper direct blowing layer tube body 31 surrounds the space above the upper direct blowing layer disc body 311 to form an upper direct blowing layer; when the wet meal passes through the upper direct blowing layer tube body 31, hot air is directly blown to the wet meal, and the wet meal is baked at high temperature, so as to achieve the purpose of evaporating water and quickly perform drying treatment; The upper desolventizing layer tube body 25 surrounds the space above the upper desolventizing layer disc body 26 to form an upper desolventizing layer, the middle desolventizing layer tube body 27 surrounds the space above the middle desolventizing layer disc body 28 to form an middle desolventizing layer, and the lower desolventizing layer tube body 29 surrounds the space above the lower desolventizing layer disc body 30 to form a lower desolventizing layer; The upper pre-desolvent layer disc 111 is an upper pre-desolvent layer, the middle pre-desolvent layer tube 21 surrounds the space above the middle pre-desolvent layer disc 22 to form the middle pre-desolvent layer, and the lower pre-desolvent layer tube 23 surrounds the space above the lower pre-desolvent layer disc 24 to form the lower pre-desolvent layer; The wet meal enters the upper pre-desolventizing layer from the feed hole on the top of the top cover 3, and falls on the top of the upper pre-desolventizing layer disc 111. After being heated at high temperature, a part of the residual solvent in the wet meal is heated and evaporated. After the wet meal falls downward into the middle pre-desolventizing layer, a part of the residual solvent in the wet meal is heated and evaporated. After the wet meal falls downward into the lower pre-desolventizing layer, a part of the residual solvent in the wet meal is heated and evaporated again. The wet meal falls downward into the upper desolventizing layer, the middle desolventizing layer and the lower desolventizing layer in turn. After being heated at high temperature, the residual solvent in the wet meal is further heated and evaporated.

[0024] like Figure 2 and Figure 6 As shown, the tops of the middle pre-desolventizing layer tube body 21, the lower pre-desolventizing layer tube body 23, the upper desolventizing layer tube body 25, the middle desolventizing layer tube body 27, the lower desolventizing layer tube body 29 and the upper direct blowing layer tube body 31 are all provided with air holes 211, and the inner walls of the middle pre-desolventizing layer tube body 21, the lower pre-desolventizing layer tube body 23, the upper desolventizing layer tube body 25, the middle desolventizing layer tube body 27, the lower desolventizing layer tube body 29 and the upper direct blowing layer tube body 31 are all provided with through holes corresponding to the air holes 211; During the gas flow, the gas first enters the lowermost upper direct blowing layer tube body 31, then enters from the through hole on the inner wall of the upper direct blowing layer tube body 31, and then enters the pore 211. The gas passes from bottom to top through the lower desolventizing layer tube body 29, the middle desolventizing layer tube body 27, the upper desolventizing layer tube body 25, the lower pre-desolventizing layer tube body 23 and the pore 211 of the middle pre-desolventizing layer tube body 21, and from the lower desolventizing layer tube body 29, the middle desolventizing layer tube body 27, the upper desolventizing layer tube body 25, the lower pre-desolventizing layer tube body The gas flows through the through holes on the inner wall of the lower desolventizing layer tube body 29, the middle desolventizing layer tube body 27, the upper desolventizing layer tube body 25, the lower pre-desolventizing layer tube body 23 and the middle pre-desolventizing layer tube body 21. After the gas enters the inner space of the lower desolventizing layer tube body 29, the middle desolventizing layer tube body 27, the upper desolventizing layer tube body 25, the lower pre-desolventizing layer tube body 23 and the middle pre-desolventizing layer tube body 21, the air in the space is heated, thereby uniformly heating the interior of the tower body 1.

[0025] Embodiment 3 like Figure 8-Figure 10 As shown, in this embodiment, the outer wall of the main shaft 11 is provided with a dispersion component 33, and the dispersion component 33 includes a fixed tube 331 arranged on the outer wall of the main shaft 11, and the outer wall of the fixed tube 331 is provided with a rake 16, and a scraper 334 is provided on one side of the rake 16, and a pressure rod 17 is provided on one side of the scraper 334. A positioning ring 332 is also provided on the outer wall of the fixed tube 331, and the interior of the rake 16 is a hollow structure, and a plurality of holes are opened at the bottom of the rake 16, one end of the rake 16 is communicated with the interior of the main shaft 11, and a plurality of rod bodies are provided at the bottom of the rake 16; It should be noted that the upper pre-desolventizing layer disc 111, the lower direct-blowing layer disc 18, the upper direct-blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30 constitute a tray assembly, and a fixed tube 331 is arranged between the connection parts of the main shaft 11 and the upper pre-desolventizing layer disc 111, the lower direct-blowing layer disc 18, the upper direct-blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30 respectively. The wall thickness of the fixed tube 331 is extremely small and it is made of stainless steel. The main shaft 11 and the fixed tube 331 adopt the same The main shaft 11 and the fixed tube 331 are made of the same material and fixed by welding. When the main shaft 11 rotates, the fixed tube 331 is driven to rotate. The fixed tube 331 will not drive the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30 structure outside it to rotate. The upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30 are in a state of being fixed inside the tower body 1; During the rotation of the main shaft 11, the fixed tube 331 drives the rake 16 to make a circular motion around the central axis of the main shaft 11, and the rake 16 drives the rod body at the bottom thereof, and the rod body is suspended above the upper pre-desolventizing layer disk 111, the lower direct blowing layer disk 18, the upper direct blowing layer disk 311, the middle pre-desolventizing layer disk 22, the lower pre-desolventizing layer disk 24, the upper desolventizing layer disk 26, the middle desolventizing layer disk 28 and the lower desolventizing layer disk 30. During the drying process, the wet meal is dispersed on the top of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30 to avoid the problem of wet meal agglomeration. At the same time, the wet meal is dispersed, which is conducive to more complete contact between hot air and wet meal, increasing the heating area of ​​wet meal and improving drying efficiency. During the rotation of the main shaft 11, the fixed tube 331 drives the scraper 334 to make a circular motion around the central axis of the main shaft 11. The bottom of the scraper 334 is very close to the top of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30. The scraper 334 rotates one circle. Afterwards, part of the wet meal accumulated on the top of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30 is pushed downward, and the scraper 334 makes multiple circular motions and pushes the wet meal multiple times. The wet meal can continue to fall downward, thereby continuously drying, which is beneficial to the pre-desolventizing and desolventizing of the wet meal.

[0026] like Figure 9-12 As shown, a squeezing assembly 171 is provided at the bottom of the pressure rod 17, and the squeezing assembly 171 includes a mounting tube 34, a telescopic rod 35 is provided inside the mounting tube 34, a spring 37 is sleeved outside the telescopic rod 35, and a squeezing ball 36 is fixed at the bottom end of the telescopic rod 35; In this embodiment, when the squeezing ball 36 is in a stationary state, the bottom of the squeezing ball 36 can enter the top holes of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30, and is in a suspended state. During the circular motion of the pressure rod 17, the squeezing ball 36 is driven by the mounting tube 34, the squeezing ball 36 is subjected to resistance, and squeezes the telescopic rod 35 upward, the telescopic rod 35 shortens upward, and squeezes the spring 37, and the squeezing ball 36 moves up and down. The squeezing ball 36 makes a reciprocating motion, and each time it moves downward, it falls into the top holes of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30, thereby pushing out the wet meal stuck in the holes and avoiding blockage of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30.

[0027] like Fig.13 and Fig.14As shown, a support rod 40 is provided at the bottom of the positioning ring 332, a rollable track ball 38 is provided at the end of the support rod 40, a slide rail 333 is provided below the track ball 38, a groove 335 is provided at the top of the slide rail 333, and a push rod 39 is fixed to the side wall of the support rod 40, and the end of the push rod 39 is tilted downward and extends into the groove 335; specifically, the positioning ring 332 is used to assist in supporting the fixed tube 331, so as to further support the rake 16, the pressure rod 17 and the scraper 334, and ensure the fixed tube 331, the rake 16, the pressure rod 17 and the scraper 334 Stable, preventing the fixed tube 331, the rake 16, the pressure rod 17 and the scraper 334 from loosening and moving downward, so as to ensure that the rod body at the bottom of the rake 16, the squeezing ball 36 and the bottom of the scraper 334 will not contact the top of the upper pre-desolventizing layer disc 111, the lower direct blowing layer disc 18, the upper direct blowing layer disc 311, the middle pre-desolventizing layer disc 22, the lower pre-desolventizing layer disc 24, the upper desolventizing layer disc 26, the middle desolventizing layer disc 28 and the lower desolventizing layer disc 30, thereby avoiding the noise caused by the scraping between them, and effectively improving the service life and working stability of the dispersion component 33; like Figures 1 to 3 As shown, a breaking assembly is also provided at the bottom end of the tower body 1, and the breaking assembly includes a bearing seat 14 fixed to the outer wall of the tower body 1, a three-phase motor 13 is fixed to one side of the bearing seat 14, and the output shaft of the three-phase motor 13 extends to the inside of the tower body 1 and is connected to a sphere 9, the inside of the sphere 9 is a hollow structure, and the outer wall of the sphere 9 is a hollow structure, and an air jet 10 is provided below the sphere 9, and the end of the air jet 10 is connected to a cooling pipe 7, and the end of the cooling pipe 7 extends to the outside of the tower body 1 and is connected to a fan 8; Specifically, the wet meal passes through the lower direct blowing layer disc 18 and falls downward to the cooling layer. During this process, the output shaft of the three-phase motor 13 drives the sphere 9 to rotate. The wet meal passes through the hollow holes on the outer wall of the sphere 9 and falls downward again driven by the sphere 9. In the process of contacting with the sphere 9, the wet meal that has been clumped together can be separated into more dispersed powder. After passing through the sphere 9, the wet meal falls downward to the upper area of ​​the air injection pipe 10, where it is cooled by the wind and finally discharged from the bottom of the tower body 1.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A disc dryer, comprising a tower body (1), wherein a discharge port is provided at the bottom of the tower body (1), a top cover (3) is provided at the top of the tower body (1), a feed hole is provided on the side wall of the top cover (3), an air outlet pipe (20) is provided at the top of the top cover (3), and an extended end of the air outlet pipe (20) is connected to an exhaust pipe (6), characterized in that: A base (4) is fixed on the top of the top cover (3), a driving mechanism (5) is fixed on the top of the base (4), a main shaft (11) is arranged inside the tower body (1), a cooling layer is provided inside the bottom end of the tower body (1), a direct blowing layer is provided above the cooling layer, an air inlet pipe (2) is arranged at a position of the tower body (1) close to the direct blowing layer, a desolventizing layer is provided above the direct blowing layer, a pre-desolventizing layer is provided above the desolventizing layer, the main shaft (11) is hollow inside, an air inlet (15) is provided on the outer wall of the bottom end of the main shaft (11), the air inlet (15) is located in the direct blowing layer, and a plurality of exhaust ports (32) are provided on the outer wall of the main shaft (11), each exhaust port (32) corresponds to the inner space of the desolventizing layer and the pre-desolventizing layer, respectively.

2. A disc dryer according to claim 1, characterized in that: The direct blowing layer comprises a lower direct blowing layer disc (18), the air inlet (15) is located above the lower direct blowing layer disc (18), an upper direct blowing layer disc (311) is also arranged above the lower direct blowing layer disc (18), an upper direct blowing layer tube (31) is arranged above the upper direct blowing layer disc (311), a bearing fixing plate (19) is arranged below the lower direct blowing layer disc (18), a bearing is fixed in the middle of the bearing fixing plate (19), and the bottom end of the main shaft (11) passes through the inner liner ring of the bearing.

3. A disc dryer according to claim 2, characterized in that: The desolventizing layer comprises a lower desolventizing layer disc (30) arranged above an upper direct-blowing layer disc (311), an intermediate desolventizing layer disc (28) being arranged above the lower desolventizing layer disc (30), and an upper desolventizing layer disc (26) being arranged above the intermediate desolventizing layer disc (28).

4. A disc dryer according to claim 3, characterized in that: The pre-desolventizing layer comprises a lower pre-desolventizing layer disc (24) arranged above an upper desolventizing layer disc (26), an intermediate pre-desolventizing layer disc (22) being arranged above the lower pre-desolventizing layer disc (24), and an upper pre-desolventizing layer disc (111) being arranged above the intermediate pre-desolventizing layer disc (22).

5. A disc dryer according to claim 4, characterized in that: An air-conducting layer (12) is arranged outside the desolventizing layer and the pre-desolventizing layer. The air-conducting layer (12) comprises an upper direct-blowing layer tube body (31) arranged on the top of an upper direct-blowing layer disc (311), a lower desolventizing layer tube body (29) is arranged on the top of the lower desolventizing layer disc (30), an intermediate desolventizing layer tube body (27) is arranged on the top of the intermediate desolventizing layer disc (28), an upper desolventizing layer tube body (25) is arranged on the top of the upper desolventizing layer disc (26), a lower pre-desolventizing layer tube body (23) is arranged on the top of the lower pre-desolventizing layer disc (24), and an intermediate pre-desolventizing layer tube body (21) is arranged on the top of the intermediate pre-desolventizing layer disc (22).

6. A disc dryer according to claim 5, characterized in that: The tops of the intermediate pre-desolventizing layer tube body (21), the lower pre-desolventizing layer tube body (23), the upper desolventizing layer tube body (25), the intermediate desolventizing layer tube body (27), the lower desolventizing layer tube body (29) and the upper direct-blowing layer tube body (31) are all provided with air holes (211), and the inner walls of the intermediate pre-desolventizing layer tube body (21), the lower pre-desolventizing layer tube body (23), the upper desolventizing layer tube body (25), the intermediate desolventizing layer tube body (27), the lower desolventizing layer tube body (29) and the upper direct-blowing layer tube body (31) are all provided with through holes corresponding to the air holes (211).

7. A disc dryer according to claim 1, characterized in that: The outer wall of the main shaft (11) is provided with a dispersion component (33), the dispersion component (33) comprises a fixed tube (331) arranged on the outer wall of the main shaft (11), the outer wall of the fixed tube (331) is provided with a rake (16), one side of the rake (16) is provided with a scraper (334), one side of the scraper (334) is provided with a pressure rod (17), the outer wall of the fixed tube (331) is also provided with a positioning ring (332), the interior of the rake (16) is a hollow structure, and a plurality of holes are provided at the bottom of the rake (16), one end of the rake (16) is in communication with the interior of the main shaft (11), and a plurality of rod bodies are provided at the bottom of the rake (16).

8. A disc dryer according to claim 7, characterized in that: A squeezing assembly (171) is arranged at the bottom of the pressure rod (17), and the squeezing assembly (171) comprises a mounting tube (34). A telescopic rod (35) is arranged inside the mounting tube (34), a spring (37) is sleeved on the outside of the telescopic rod (35), and a squeezing ball (36) is fixed to the bottom end of the telescopic rod (35).

9. A disc dryer according to claim 7, characterized in that: A support rod (40) is provided at the bottom of the positioning ring (332), a rollable track ball (38) is provided at the end of the support rod (40), a slide rail (333) is provided below the track ball (38), a groove (335) is provided at the top of the slide rail (333), and a push rod (39) is fixed to the side wall of the support rod (40), the end of the push rod (39) is inclined downward and extends into the groove (335).

10. A disc dryer according to claim 1, characterized in that: The bottom end of the tower body (1) is also provided with a breaking up assembly, the breaking up assembly comprising a bearing seat (14) fixed to the outer wall of the tower body (1), a three-phase motor (13) fixed to one side of the bearing seat (14), an output shaft of the three-phase motor (13) extending to the inside of the tower body (1) and connected to a sphere (9), the inside of the sphere (9) being a hollow structure, and the outer wall of the sphere (9) being a hollow structure, an injection pipe (10) being provided below the sphere (9), the end of the injection pipe (10) being connected to a cooling pipe (7), the end of the cooling pipe (7) extending to the outside of the tower body (1) and connected to a fan (8), the sphere (9) and the injection pipe (10) being located in a cooling layer.

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