Reed wool preparation production line

Abstract

The invention discloses a reed velvet preparation production line, and particularly relates to the technical field of reed velvet preparation, the reed velvet preparation production line comprises a heat source group, and a surge bin, an extrusion tearing machine, a preheating conveyor, a digester, a spiral conveyor, a tearing thread rolling machine, a conveying and homogenizing bin and a high-concentration mill which are connected in sequence; the heat source group is respectively connected with the preheating conveyor and the digester through pipelines; and the digester comprises a cooking conveying device and a spiral dryer device. The steaming and conveying device can make high-temperature steam make more sufficient contact with reed materials, the steaming, softening and sterilizing effects of the reed materials are improved, and the spiral drying machine device can further soften and dry the reed materials at high temperature; meanwhile, steam exhausted by the spiral dryer device enters the preheating conveyor to preheat the reed materials, the softening effect of the reed materials is improved, cooking waste liquid is not generated, and the effects of energy conservation, consumption reduction and low pollution are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of reed fluff preparation, and particularly relates to a production line for reed fluff preparation. Background Art

[0002] The fireworks molded box is an innovative packaging and production process in the fireworks industry, which combines mechanized production and material optimization. Reed fluff is mainly used as an environmentally friendly fiber raw material in the production of fireworks molded boxes. Combining with the hot pressing forming technology, a molded structure with low cost and high strength can be achieved. Using reed fluff as the raw material to make fireworks molded boxes has a lower comprehensive cost compared with traditional paper tubes, and the natural degradation period of reed fiber products is short, meeting the environmental protection requirements.

[0003] The production line for reed fluff preparation mainly involves the pretreatment of reed raw materials, fiber separation, fluff collection, and forming. In the production line for reed fluff preparation, the reed materials are usually cooked at high temperature by boiling in water. After cooking, the reed materials need to be squeezed and dehydrated by a machine. Using the boiling method is likely to produce a large amount of cooking waste liquid. Moreover, the reed materials are piled together and soaked in the cooking boiler for cooking. Due to the piling of reed materials, the cooking and softening degrees of the reed materials inside and outside are different, affecting the quality of the final reed fluff product. Summary of the Invention

[0004] The purpose of the present invention is to provide a production line for reed fluff preparation to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A production line for reed fluff preparation, comprising:

[0006] A heat source group and a buffer bin, an extrusion and tearing machine, a preheating conveyor, a cooker, a screw conveyor, a tearing and rubbing machine, a conveying and leveling bin, and a high-concentration grinder connected in sequence;

[0007] The heat source group is respectively connected to the preheating conveyor and the cooker through pipelines;

[0008] The cooker includes a cooking conveying device and a screw dryer device;

[0009] The cooking conveying device includes a cooking cylinder and a heat preservation shell fixedly sleeved on the cooking cylinder. A hollow rotating shaft and a second spiral blade are nested in the cooking cylinder, and a loosening mechanism is provided on the hollow rotating shaft;

[0010] The screw dryer device includes a drying cylinder and an outer shell cover fixedly sleeved on the drying cylinder. A heat-conducting conveying component is nested inside the drying cylinder. A plurality of filter meshes are installed on the side wall of the drying cylinder, and a drying cavity is formed inside the cylinder wall of the drying cylinder.

[0011] Preferably, both ends of the hollow rotating shaft rotatably penetrate through the two side walls of the cooking cylinder and extend out of the cooking cylinder, and first brackets are fixed at both ends of the cooking cylinder;

[0012] The loosening mechanism includes a fixed rod nested in the hollow rotating shaft and a plurality of rotating rods rotatably embedded on the hollow rotating shaft. The plurality of rotating rods are distributed between the blades of the second spiral blade. A dispersing block is fixed at the outer end of the rotating rod, and a first bevel gear is fixed at the inner end of the rotating rod and extends into the hollow rotating shaft. Both ends of the fixed rod extend out of the hollow rotating shaft and are respectively fixedly connected to the corresponding first brackets. A second bevel gear is fixedly sleeved on the rod body of the fixed rod corresponding to the position of each first bevel gear, and the second bevel gear is meshed and connected with the first bevel gear;

[0013] When the hollow rotating shaft rotates, the second spiral blade and the plurality of rotating rods on it are driven to rotate along with it. The second spiral blade rotates to convey the reed material. When the plurality of rotating rods rotate, the first bevel gear at their inner ends is driven to rotate around the second bevel gear. The meshing of the first bevel gear and the second bevel gear causes the first bevel gear to rotate on its own axis, thereby driving the rotating rod to rotate on its own axis. The rotating rod rotating on its own axis drives the dispersing block to rotate, and the passing reed material is dispersed, so that the high-temperature steam contacts the reed material more fully, improving the cooking effect of the reed material.

[0014] Preferably, a second driving component for driving the hollow rotating shaft to rotate is provided behind the cooking cylinder;

[0015] A heat preservation cavity is provided between the heat preservation shell and the cooking cylinder, and a second steam outlet pipe head is provided at the left end of the lower side of the heat preservation shell;

[0016] A second feed port is opened at the left end of the upper side of the cooking cylinder, a second discharge port is opened at the right end of the lower side of the cooking cylinder, an overpass port is opened on the cylinder body at the right end of the cooking cylinder inside the heat preservation shell, and the inner cavity of the cooking cylinder is communicated with the heat preservation cavity through the overpass port. A blocking net is installed in the overpass port, and a second steam inlet pipe head is provided at the left end of the lower side of the cooking cylinder;

[0017] The inner cavity of the second steam inlet pipe head is communicated with the inner cavity of the cooking cylinder. High-temperature steam enters the cooking cylinder through the second steam inlet pipe head. The high-temperature steam contacts the reed material in the cooking cylinder to cook and soften the reed material at high temperature. At the same time, the high-temperature steam moves in the cooking cylinder together with the reed material. When it moves to the right end of the cooking cylinder, a part of the steam enters the drying cylinder along with the reed material, and another part of the steam enters the heat preservation cavity through the mesh holes of the blocking net and flows in the heat preservation cavity, and finally is discharged through the second steam outlet pipe head. When the steam flows in the heat preservation cavity, a heat preservation layer is formed, reducing the heat loss in the cooking cylinder, thereby ensuring the high-temperature softening effect on the reed material.

[0018] Preferably, second brackets are provided at both ends of the drying cylinder;

[0019] The heat-conducting conveying assembly includes a hollow heat-conducting shaft and heat-conducting spiral fins fixedly sleeved on the hollow heat-conducting shaft. A heat-conducting cavity is formed inside the heat-conducting spiral fins, and the heat-conducting cavity communicates with the inner cavity of the hollow heat-conducting shaft. Both ends of the hollow heat-conducting shaft rotatably penetrate through the two side walls of the drying cylinder and extend outside the drying cylinder. The right end of the hollow heat-conducting shaft is connected with an air inlet head through a rotary joint, and the left end of the hollow heat-conducting shaft is connected with an exhaust pipe head through a rotary joint. The exhaust pipe head and the air inlet head respectively penetrate through the corresponding second brackets fixedly.

[0020] The diameter of the hollow heat-conducting shaft increases sequentially from left to right.

[0021] A third driving assembly for driving the hollow heat-conducting shaft to rotate is provided behind the drying cylinder.

[0022] The rotation of the hollow heat-conducting shaft drives the rotation of the heat-conducting spiral fins to convey the softened reed materials in the drying cylinder. During the conveying process, part of the high-temperature steam enters the hollow heat-conducting shaft through the exhaust pipe head, and another part of the steam enters the drying cavity. The heat is transferred to the reed materials in the drying cylinder through the inner wall of the drying cavity and the outer walls of the hollow heat-conducting shaft and the heat-conducting spiral fins, further softening the reed materials at high temperature and drying the moisture in the reed materials at the same time. When the reed materials are conveyed in the drying cylinder, the heat-conducting spiral fins continuously squeeze the reed materials, and the water vapor between the reed materials is discharged through the filter screen.

[0023] Preferably, a water collecting cavity is provided between the outer shell cover and the drying cylinder. A drain port is provided at the left end of the lower side of the outer shell cover, and the drain port communicates with the water collecting cavity.

[0024] A plurality of water filter ports are formed in the side wall of the drying cylinder. The inner cavity of the drying cylinder communicates with the water collecting cavity through the water filter ports, and the filter screen is installed in the water filter ports.

[0025] A third feed port is provided at the left end of the upper side of the drying cylinder, and the third feed port is connected with the second discharge port. A third discharge port is provided at the right end of the lower side of the drying cylinder. A third steam outlet pipe head is provided at the left end of the lower side of the drying cylinder, and a third steam inlet pipe head is provided at the right end of the lower side of the drying cylinder. The inner cavities of the third steam outlet pipe head and the third steam inlet pipe head both communicate with the drying cavity.

[0026] High-temperature steam can enter the drying cavity through the third steam outlet pipe head, and the reed materials are dried through the inner wall of the drying cavity. The water and water vapor generated by the drying and extrusion of the reed materials can enter the water collecting cavity through the mesh holes of the filter screen and are finally discharged through the drain port.

[0027] Preferably, the preheating conveyor includes a conveying cylinder and a preheating cover fixed on the conveying cylinder. A preheating chamber is provided between the preheating cover and the conveying cylinder. A conveying shaft is rotatably nested inside the conveying cylinder. A first spiral blade is sleeved on the conveying shaft. A first steam inlet pipe head is provided at the right end of the front side of the preheating cover, and a first steam outlet pipe head is provided at the left end of the lower side of the preheating cover;

[0028] A first feed inlet is provided at the left end of the upper side of the conveying cylinder, and a first discharge outlet is provided at the right end of the lower side of the conveying cylinder. The first discharge outlet is connected to the second feed inlet;

[0029] The rotation of the conveying shaft drives the rotation of the first spiral blade, so that the reed material is conveyed in the conveying cylinder. Steam enters the preheating chamber through the first steam inlet pipe head and finally discharges from the first steam outlet pipe head. When the steam flows in the preheating chamber, heat is transferred to the reed material in the conveying cylinder through the inner wall of the preheating chamber to preheat the reed material.

[0030] Preferably, the left end of the conveying shaft rotatably penetrates through the left side wall of the conveying cylinder and extends outside the conveying cylinder. A first driving assembly for driving the rotation of the conveying shaft is provided behind the conveying cylinder. The first driving assembly drives the conveying shaft to rotate, and the rotation of the conveying shaft drives the first spiral blade thereon to rotate to convey the reed material in the conveying cylinder.

[0031] Preferably, the heat source group includes an electric steam generator, a filter and a circulation pump;

[0032] The steam output end of the electric steam generator is connected to the second steam inlet pipe head, the third steam inlet pipe head and the air inlet pipe head respectively through pipelines. Both the exhaust pipe head and the third steam outlet pipe head are connected to the first steam inlet pipe head through pipelines. The first steam outlet pipe head is connected to the circulation pump through a pipeline. The circulation pump is connected to the feed end of the electric steam generator through a pipeline. The second steam inlet pipe head is connected to the filter through a pipeline. The output end of the filter is connected to the feed end of the electric steam generator through a pipeline;

[0033] The electric steam generator generates steam. Part of the steam enters the cooking cylinder in the cooking and conveying device through a pipeline and the second steam inlet pipe head. Part of the steam enters the drying cavity in the spiral dryer device through a pipeline and the third steam inlet pipe head. Another part of the steam enters the hollow heat-conducting shaft in the spiral dryer device through a pipeline and the air inlet pipe head. The steam in the cooking cylinder conducts high-temperature cooking and softening on the reed materials. The steam and water discharged from the cooking and conveying device enter the filter for filtration treatment. The steam and water after filtration treatment return to the electric steam generator for reheating. The steam in the spiral dryer device conducts high-temperature drying treatment on the reed materials. The discharged steam enters the preheating cavity in the preheating conveyor through a pipeline and the first steam inlet pipe head to preheat the reed materials in the preheating conveyor.

[0034] Preferably, a first screw conveyor is provided between the buffer bin and the extrusion and tearing machine. The first screw conveyor transports the reed materials stored in the buffer bin into the extrusion and tearing machine for extrusion and tearing treatment.

[0035] A second screw conveyor is provided at the discharge end of the high-concentration grinder. A belt conveyor is provided at the discharge end of the second screw conveyor. An aggregate bin is provided at the discharge end of the belt conveyor. A packing machine is provided at the discharge end of the aggregate bin. The high-concentration grinder transports the reed fluff after high-concentration grinding into the aggregate bin for storage through the second screw conveyor and the belt conveyor. At the same time, the reed fluff in the aggregate bin is packed by the packing machine, which facilitates the transportation of the reed fluff.

[0036] In the above technical solution, the technical effects and advantages provided by the present invention are as follows:

[0037] 1. In the present invention, the cooker is composed of a cooking and conveying device and a spiral dryer device, and high-temperature steam is used as the cooking source. Part of the high-temperature steam enters the cooking and conveying device to conduct high-temperature cooking and softening on the reed materials. Another part of the steam enters the spiral dryer device to further high-temperature soften the reed materials after cooking and softening. At the same time, the reed materials are extruded and high-temperature dried. Moreover, the steam in the spiral dryer device enters the preheating conveyor to preheat the reed materials before cooking, which greatly improves the high-temperature cooking and softening effect of the reed materials, does not generate cooking waste liquid, does not generate toxic substances, and the waste water is almost zero discharged, avoiding environmental pollution, meeting the requirements of clean production, and achieving the effects of energy saving, consumption reduction, and low pollution.

[0038] 2. In the present invention, a loosening mechanism is provided on the hollow rotating shaft inside the cooking and conveying device. When the hollow rotating shaft rotates, it drives a plurality of rotating rods thereon to rotate along with it. When the plurality of rotating rods rotate, they drive the first bevel gear at their inner ends to rotate around the second bevel gear. The meshing of the first bevel gear and the second bevel gear causes the first bevel gear to rotate on its own axis, thereby driving the rotating rods to rotate on their own axes. The self-rotation of the rotating rods drives the dispersing blocks to rotate, dispersing the passing reed materials, enabling the high-temperature steam to come into more sufficient contact with the reed materials, and improving the cooking and softening effect of the reed materials.

[0039] 3. In the present invention, a drying cavity is provided inside the cylinder wall of the drying cylinder of the cooking and conveying device, and a heat-conducting conveying component is provided inside the drying cylinder. The heat-conducting conveying component conveys the cooked reed materials, and at the same time, steam flows in the drying cavity and the heat-conducting conveying component. Heat is transferred to the reed materials through the inner wall of the drying cavity and the outer wall of the heat-conducting conveying component, thereby realizing the drying of the reed materials and further high-temperature softening, improving the softening treatment effect of the reed materials. At the same time, there is no need to dehydrate the reed materials again, reducing the processing procedures for the reed materials and improving the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0041] Figure 1 is the process schematic diagram of the present invention;

[0042] Figure 2 is the connection pipeline diagram of the heat source group, preheating conveyor and cooker of the present invention;

[0043] Figure 3 is the structural schematic diagram of the cooking and conveying device of the present invention;

[0044] Figure 4 is the cross-sectional view of the cooking and conveying device of the present invention;

[0045] Figure 5 is the cross-sectional view of the hollow rotating shaft of the present invention;

[0046] Figure 6 is for the present invention Figure 5 Part A enlarged view;

[0047] Figure 7 is the structural schematic diagram of the spiral dryer device of the present invention;

[0048] Figure 8 is the cross-sectional view of the spiral dryer device of the present invention;

[0049] Figure 9 Schematic structural diagram of the drying cylinder of the present invention;

[0050] Figure 10 Stereoscopic sectional view of the drying cylinder of the present invention;

[0051] Figure 11 Schematic partial sectional view of the heat-conducting conveying assembly of the present invention;

[0052] Figure 12 Schematic structural diagram of the preheating conveyor of the present invention;

[0053] Figure 13 Stereoscopic sectional view of the preheating conveyor of the present invention.

[0054] Explanation of reference numerals in the drawings:

[0055] 10. Preheating conveyor; 11. Conveying cylinder; 12. Preheating cover; 121. Preheating chamber; 122. First steam inlet pipe head; 123. First steam outlet pipe head; 13. Conveying shaft; 14. First spiral blade; 15. First driving assembly; 16. First feed inlet; 17. First discharge outlet;

[0056] 20. Cooking and conveying device; 21. Cooking cylinder; 211. First support; 212. Second feed inlet; 213. Second discharge outlet; 214. Transition port; 215. Intercepting net; 216. Second steam inlet pipe head; 22. Heat preservation shell; 221. Heat preservation chamber; 222. Second steam outlet pipe head; 23. Hollow rotating shaft; 24. Second spiral blade; 25. Loosening mechanism; 251. Fixed rod; 252. Rotating rod; 253. Dispersing block; 254. First bevel gear; 255. Second bevel gear; 26. Second driving assembly;

[0057] 30. Screw dryer device; 31. Drying cylinder; 311. Drying chamber; 312. Water filter port; 313. Filter screen; 314. Second support; 315. Third feed inlet; 316. Third discharge outlet; 317. Third steam outlet pipe head; 318. Third steam inlet pipe head; 32. Outer shell cover; 321. Water collection chamber; 322. Drainage port; 33. Heat-conducting conveying assembly; 331. Hollow heat-conducting shaft; 332. Heat-conducting spiral blade; 333. Heat-conducting chamber; 334. Air inlet pipe head; 335. Exhaust pipe head; 34. Third driving assembly;

[0058] 40. Electric steam generator; 50. Filter; 60. Circulation pump; 70. Extrusion and tearing machine; 80. Tearing and wire-rolling machine; 90. High-concentration grinding machine. Detailed implementation manners

[0059] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0060] The present invention provides a reed fluff preparation production line as Figures 1 to 13 shown, including:

[0061] a heat source group, a buffer bin, an extrusion and tearing machine 70, a preheating conveyor 10, a cooking vessel, a screw conveyor, a tearing and rubbing machine 80, a conveying and leveling bin, and a high-concentration grinder 90 that are connected in sequence;

[0062] The heat source group is respectively connected to the preheating conveyor 10 and the cooking vessel through pipelines;

[0063] The cooking vessel includes a cooking conveying device 20 and a screw dryer device 30.

[0064] A first screw conveyor is provided between the buffer bin and the extrusion and tearing machine 70, and the first screw conveyor transports the reed material stored in the buffer bin into the extrusion and tearing machine 70 for extrusion and tearing treatment;

[0065] A second screw conveyor is provided at the discharge end of the high-concentration grinder 90. A belt conveyor is provided at the discharge end of the second screw conveyor. An aggregate bin is provided at the discharge end of the belt conveyor. A packing machine is provided at the discharge end of the aggregate bin. The high-concentration grinder 90 transports the reed fluff after high-concentration grinding into the aggregate bin for storage through the second screw conveyor and the belt conveyor. At the same time, the reed fluff in the aggregate bin is packed by the packing machine, which is convenient for the transportation of the reed fluff.

[0066] In the present invention, the reed material stored in the buffer bin is transported into the extrusion and tearing machine 70 through the first screw conveyor. The extrusion and tearing machine 70 tears the reed material to separate the coarse fiber bundles. Then the torn reed material enters the preheating conveyor 10 for preheating treatment. The preheated reed material enters the cooking conveying device 20 of the cooking vessel for high-temperature cooking and softening. Then the reed material that has undergone high-temperature cooking and softening enters the screw dryer device 30 for drying treatment. Then it is transported to the tearing and rubbing machine 80 through the screw conveyor for tearing and rubbing treatment. After completion, it is transported to the high-concentration grinder 90 through the conveying and leveling bin for high-concentration grinding treatment to separate the fiber filaments of the reed material to form reed fluff. Then it is transported into the aggregate bin for storage through the second screw conveyor and the belt conveyor. At the same time, the reed fluff in the aggregate bin is packed by the packing machine, which is convenient for the transportation of the reed fluff;

[0067] The steamer consists of a steaming and conveying device 20 and a screw dryer device 30, and uses high-temperature steam as the steaming source. A part of the high-temperature steam enters the steaming and conveying device 20 to conduct high-temperature steaming and softening on the reed materials, and another part of the steam enters the screw dryer device 30 to further conduct high-temperature softening on the steamed and softened reed materials. At the same time, the reed materials are extruded and high-temperature dried, and the steam in the screw dryer device 30 enters the preheating conveyor 10 to preheat the reed materials before steaming, greatly improving the high-temperature steaming and softening effect of the reed materials, without generating steaming waste liquid, without generating toxic substances, with almost zero wastewater discharge, avoiding environmental pollution, meeting the requirements of clean production, and achieving the effects of energy conservation, consumption reduction and low pollution.

[0068] As Figures 3 to 6 shown, the steaming and conveying device 20 includes a steaming cylinder 21 and a heat preservation shell 22 fixedly sleeved on the steaming cylinder 21. A hollow rotating shaft 23 and a second spiral blade 24 are nested in the steaming cylinder 21, and a loosening mechanism 25 is arranged on the hollow rotating shaft 23.

[0069] Both ends of the hollow rotating shaft 23 rotate through the two side walls of the steaming cylinder 21 and extend outside the steaming cylinder 21. First brackets 211 are fixedly arranged at both ends of the steaming cylinder 21;

[0070] A second driving component 26 for driving the hollow rotating shaft 23 to rotate is arranged behind the steaming cylinder 21;

[0071] The loosening mechanism 25 includes a fixed rod 251 nested in the hollow rotating shaft 23 and a plurality of rotating rods 252 rotatably embedded on the hollow rotating shaft 23. The plurality of rotating rods 252 are distributed between the blades of the second spiral blade 24. A dispersing block 253 is fixedly arranged at the outer end of the rotating rod 252, and a first bevel gear 254 is fixedly arranged at the inner end of the rotating rod 252 and extends into the hollow rotating shaft 23. Both ends of the fixed rod 251 extend outside the hollow rotating shaft 23 and are respectively fixedly connected to the corresponding first brackets 211. Second bevel gears 255 are fixedly sleeved on the rod body of the fixed rod 251 corresponding to the positions of the respective first bevel gears 254, and the second bevel gears 255 are meshed and connected with the first bevel gears 254;

[0072] In the present invention, when the hollow rotating shaft 23 in the steaming and conveying device 20 rotates, the second spiral blade 24 and the plurality of rotating rods 252 thereon are driven to rotate therewith. The rotation of the second spiral blade 24 enables the reed materials to be conveyed in the steaming cylinder 21. When the plurality of rotating rods 252 rotate, the first bevel gears 254 at their inner ends are driven to rotate around the second bevel gears 255. The meshing of the first bevel gears 254 and the second bevel gears 255 enables the first bevel gears 254 to rotate self, thereby driving the rotating rods 252 to rotate self. The self-rotation of the rotating rods 252 drives the dispersing blocks 253 to rotate, and the passing reed materials are dispersed, so that the high-temperature steam contacts the reed materials more fully, improving the steaming effect of the reed materials.

[0073] As shown Figure 4 in FIG., a heat preservation cavity 221 is provided between the heat preservation shell 22 and the cooking cylinder 21, and a second steam outlet pipe head 222 is provided at the left end of the lower side of the heat preservation shell 22;

[0074] A second feed port 212 is opened at the left end of the upper side of the cooking cylinder 21, a second discharge port 213 is opened at the right end of the lower side of the cooking cylinder 21, an overpass port 214 is opened on the cylinder body at the right end of the cooking cylinder 21 within the heat preservation shell 22, the inner cavity of the cooking cylinder 21 is communicated with the heat preservation cavity 221 through the overpass port 214, an interception net 215 is installed in the overpass port 214, and a second steam inlet pipe head 216 is provided at the left end of the lower side of the cooking cylinder 21;

[0075] In the present invention, the inner cavity of the second steam inlet pipe head 216 is communicated with the inner cavity of the cooking cylinder 21, high-temperature steam enters the cooking cylinder 21 through the second steam inlet pipe head 216, the high-temperature steam contacts the reed material in the cooking cylinder 21 to perform high-temperature cooking and softening on the reed material. At the same time, the high-temperature steam moves in the cooking cylinder 21 together with the reed material. When moving to the right end of the cooking cylinder 21, a part of the steam enters the drying cylinder 31 along with the reed material, and another part of the steam enters the heat preservation cavity 221 through the mesh holes of the interception net 215 and flows in the heat preservation cavity 221, and finally is discharged through the second steam outlet pipe head 222. When the steam flows in the heat preservation cavity 221, a heat preservation layer is formed to reduce the heat loss in the cooking cylinder 21, thereby ensuring the high-temperature softening effect on the reed material.

[0076] As shown Figures 7 to 11 in FIG., the spiral dryer device 30 includes a drying cylinder 31 and a housing cover 32 fixedly sleeved on the drying cylinder 31. A heat conduction conveying component 33 is nested inside the drying cylinder 31, a plurality of filter meshes 313 are installed on the side wall of the drying cylinder 31, and a drying cavity 311 is opened in the cylinder wall of the drying cylinder 31.

[0077] Both ends of the drying cylinder 31 are provided with second brackets 314;

[0078] The heat conduction conveying component 33 includes a hollow heat conduction shaft 331 and heat conduction spiral fins 332 fixedly sleeved on the hollow heat conduction shaft 331. A heat conduction cavity 333 is opened inside the heat conduction spiral fins 332, the heat conduction cavity 333 is communicated with the inner cavity of the hollow heat conduction shaft 331, both ends of the hollow heat conduction shaft 331 rotate through the side walls on both sides of the drying cylinder 31 and extend outside the drying cylinder 31. The right end of the hollow heat conduction shaft 331 is connected with an air inlet pipe head 334 through a rotary joint, the left end of the hollow heat conduction shaft 331 is connected with an exhaust pipe head 335 through a rotary joint, and the exhaust pipe head 335 and the air inlet pipe head 334 respectively penetrate through the corresponding second brackets 314 fixedly;

[0079] The diameter of the hollow heat conduction shaft 331 increases sequentially from left to right;

[0080] A third driving assembly 34 for driving the rotation of the hollow heat conduction shaft 331 is provided at the rear of the drying cylinder 31;

[0081] In the present invention, the rotation of the hollow heat conduction shaft 331 drives the rotation of the heat conduction spiral fins 332 to convey the softened reed materials in the drying cylinder 31. During the conveying process, a part of the high-temperature steam enters the hollow heat conduction shaft 331 through the exhaust pipe head 335, and another part of the steam enters the drying cavity 311. The heat is transferred to the reed materials in the drying cylinder 31 through the inner wall of the drying cavity 311 and the outer walls of the hollow heat conduction shaft 331 and the heat conduction spiral fins 332, further softening the reed materials at high temperature and drying the moisture in the reed materials at the same time. When the reed materials are conveyed in the drying cylinder 31, the heat conduction spiral fins 332 continuously squeeze the reed materials, and the water vapor between the reed materials is discharged through the filter screen 313.

[0082] As Figure 2 、 Figure 3 and Figure 8 shown, a water collecting cavity 321 is provided between the outer shell cover 32 and the drying cylinder 31. A drain port 322 is provided at the left end of the lower side of the outer shell cover 32, and the drain port 322 communicates with the water collecting cavity 321;

[0083] A plurality of water filtering ports 312 are formed in the side wall of the drying cylinder 31. The inner cavity of the drying cylinder 31 communicates with the water collecting cavity 321 through the water filtering ports 312, and the filter screen 313 is installed in the water filtering ports 312;

[0084] A third feed port 315 is provided at the left end of the upper side of the drying cylinder 31. The third feed port 315 is connected to the second discharge port 213. A third discharge port 316 is provided at the right end of the lower side of the drying cylinder 31. A third steam outlet pipe head 317 is provided at the left end of the lower side of the drying cylinder 31. A third steam inlet pipe head 318 is provided at the right end of the lower side of the drying cylinder 31. The inner cavities of the third steam outlet pipe head 317 and the third steam inlet pipe head 318 both communicate with the drying cavity 311;

[0085] In the present invention, the high-temperature steam can enter the drying cavity 311 through the third steam outlet pipe head 317, and the reed materials are dried through the inner wall of the drying cavity 311. The moisture and water vapor generated by the drying and extrusion of the reed materials can enter the water collecting cavity 321 through the mesh holes of the filter screen 313 and are finally discharged through the drain port 322.

[0086] As Figure 2 、 Figure 3 、 Figure 12 and Figure 13As shown in the figure, the preheating conveyor 10 includes a conveying cylinder 11 and a preheating cover 12 fixed on the conveying cylinder 11. A preheating chamber 121 is provided between the preheating cover 12 and the conveying cylinder 11. A conveying shaft 13 is rotatably nested inside the conveying cylinder 11. A first spiral blade 14 is sleeved on the conveying shaft 13. A first steam inlet nozzle 122 is provided at the right end of the front side of the preheating cover 12, and a first steam outlet nozzle 123 is provided at the left end of the lower side of the preheating cover 12;

[0087] A first feed inlet 16 is provided at the left end of the upper side of the conveying cylinder 11, and a first discharge outlet 17 is provided at the right end of the lower side of the conveying cylinder 11. The first discharge outlet 17 is connected to the second feed inlet 212;

[0088] The left end of the conveying shaft 13 rotatably penetrates through the left side wall of the conveying cylinder 11 and extends outside the conveying cylinder 11. A first driving assembly 15 for driving the conveying shaft 13 to rotate is provided behind the conveying cylinder 11.

[0089] In the present invention, the first driving assembly 15 drives the conveying shaft 13 to rotate. The rotation of the conveying shaft 13 drives the rotation of the first spiral blade 14, so that the reed material is conveyed inside the conveying cylinder 11. Steam enters the preheating chamber 121 through the first steam inlet nozzle 122 and finally discharges from the first steam outlet nozzle 123. When the steam flows in the preheating chamber 121, heat is transferred to the reed material inside the conveying cylinder 11 through the inner wall of the preheating chamber 121 to preheat the reed material.

[0090] As Figure 2 、 Figure 3 、 Figure 7 and Figure 12 shown, the heat source group includes an electric steam generator 40, a filter 50 and a circulation pump 60;

[0091] The steam output end of the electric steam generator 40 is respectively connected to a second steam inlet nozzle 216, a third steam inlet nozzle 318 and an air inlet nozzle 334 through pipelines. Both the exhaust nozzle 335 and the third steam outlet nozzle 317 are connected to the first steam inlet nozzle 122 through pipelines. The first steam outlet nozzle 123 is connected to the circulation pump 60 through a pipeline. The circulation pump 60 is connected to the feed end of the electric steam generator 40 through a pipeline. The second steam inlet nozzle 216 is connected to the filter 50 through a pipeline. The output end of the filter 50 is connected to the feed end of the electric steam generator 40 through a pipeline;

[0092] In the present invention, the electric steam generator 40 operates to generate steam. A part of the steam enters the cooking cylinder 21 in the cooking and conveying device 20 through a pipeline and the second steam inlet pipe head 216. A part of the steam enters the drying chamber 311 in the spiral dryer device 30 through a pipeline and the third steam inlet pipe head 318. Another part of the steam enters the hollow heat-conducting shaft 331 in the spiral dryer device 30 through a pipeline and the air inlet pipe head 334. The steam in the cooking cylinder 21 performs high-temperature cooking and softening on the reed material. The steam and water discharged from the cooking and conveying device 20 enter the filter 50 for filtering treatment. The filtered steam and water return to the electric steam generator 40 for reheating. The steam in the spiral dryer device 30 performs high-temperature drying treatment on the reed material. The discharged steam enters the preheating chamber 121 in the preheating conveyor 10 through a pipeline and the first steam inlet pipe head 122 to preheat the reed material in the preheating conveyor 10. The steam can be recycled, no cooking waste liquid is generated, no toxic substances are generated, and the waste water is almost zero discharged, avoiding environmental pollution, meeting the requirements of clean production, and achieving the effects of energy saving, consumption reduction, and low pollution.

[0093] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A reed velvet preparation production line, characterized in that: include: A heat source group and a buffer bin, an extrusion tearing machine (70), a preheating conveyor (10), a digester, a screw conveyor, a tearing and thread rolling machine (80), a conveying and mixing bin and a high-concentration grinder (90) connected in sequence; The heat source group is connected to the preheating conveyor (10) and the digester through pipelines respectively; The digester comprises a digester conveyor device (20) and a spiral drying device (30); The cooking and conveying device (20) comprises a cooking cylinder (21) and a heat-insulating shell (22) fixedly sleeved on the cooking cylinder (21); a hollow rotating shaft (23) and a second spiral blade (24) are nested in the cooking cylinder (21); and a loosening mechanism (25) is provided on the hollow rotating shaft (23); The spiral drying device (30) comprises a drying cylinder (31) and an outer shell cover (32) fixedly sleeved on the drying cylinder (31); a heat transfer assembly (33) is nested inside the drying cylinder (31); a plurality of filters (313) are installed on the side wall of the drying cylinder (31); and a drying chamber (311) is provided in the cylinder wall of the drying cylinder (31).

2. A reed velvet production line according to claim 1, characterized in that: The two ends of the hollow rotating shaft (23) rotate through the two side walls of the cooking cylinder (21) and extend out of the cooking cylinder (21), and the first brackets (211) are fixed to both ends of the cooking cylinder (21); The loosening mechanism (25) comprises a fixed rod (251) nested in the hollow rotating shaft (23) and a plurality of rotating rods (252) rotatably embedded in the hollow rotating shaft (23); the plurality of rotating rods (252) are distributed between the blades of the second spiral blade (24); a loosening block (253) is fixed to the outer end of the rotating rod (252); the inner end of the rotating rod (252) extends into the hollow rotating shaft (23) and is fixed with a first bevel gear (254); both ends of the fixed rod (251) extend out of the hollow rotating shaft (23) and are respectively fixedly connected to corresponding first brackets (211); the rod body of the fixed rod (251) is fixedly sleeved with a second bevel gear (255) corresponding to the position of each of the first bevel gears (254); the second bevel gear (255) is meshingly connected with the first bevel gear (254).

3. The reed down production line according to claim 1, characterized in that: A second driving assembly (26) for driving the hollow rotating shaft (23) to rotate is provided at the rear of the cooking cylinder (21); A heat preservation chamber (221) is provided between the heat preservation shell (22) and the cooking cylinder (21), and a second steam outlet pipe head (222) is provided at the lower left end of the heat preservation shell (22); A second material feed port (212) is provided at the upper left end of the cooking cylinder (21), a second material discharge port (213) is provided at the lower right end of the cooking cylinder (21), a transition port (214) is provided at the right end of the cylinder body of the cooking cylinder (21) in the heat-insulating shell (22), the inner cavity of the cooking cylinder (21) is connected with the heat-insulating cavity (221) through the transition port (214), an interception net (215) is installed in the transition port (214), and a second steam inlet pipe head (216) is provided at the lower left end of the cooking cylinder (21).

4. A reed down production line according to claim 3, characterized in that: Both ends of the drying cylinder (31) are provided with a second bracket (314); The heat transfer assembly (33) comprises a hollow heat-conducting shaft (331) and a heat-conducting spiral sheet (332) fixedly sleeved on the hollow heat-conducting shaft (331); a heat-conducting cavity (333) is provided inside the heat-conducting spiral sheet (332); the heat-conducting cavity (333) is communicated with the inner cavity of the hollow heat-conducting shaft (331); both ends of the hollow heat-conducting shaft (331) are rotated to penetrate the two side walls of the drying cylinder (31) and extend to the outside of the drying cylinder (31); the right end of the hollow heat-conducting shaft (331) is connected to an air inlet pipe head (334) through a rotating joint; the left end of the hollow heat-conducting shaft (331) is connected to an exhaust pipe head (335) through a rotating joint; the exhaust pipe head (335) and the air inlet pipe head (334) are respectively fixedly penetrated through the corresponding second bracket (314); The diameter of the hollow heat-conducting shaft (331) increases from left to right; A third driving assembly (34) for driving the hollow heat-conducting shaft (331) to rotate is provided at the rear of the drying cylinder (31).

5. The reed down production line according to claim 1, characterized in that: A water collecting chamber (321) is provided between the outer shell cover (32) and the drying cylinder (31), a drainage port (322) is provided at the lower left end of the outer shell cover (32), and the drainage port (322) is connected to the water collecting chamber (321); The side wall of the drying cylinder (31) is provided with a plurality of water filter ports (312), the inner cavity of the drying cylinder (31) is connected with the water collecting cavity (321) through the water filter ports (312), and the filter screen (313) is installed in the water filter ports (312); A third feed port (315) is provided at the upper left end of the drying cylinder (31), and the third feed port (315) is connected to the second discharge port (213). A third discharge port (316) is provided at the lower right end of the drying cylinder (31). A third steam outlet pipe head (317) is provided at the lower left end of the drying cylinder (31), and a third steam inlet pipe head (318) is provided at the lower right end of the drying cylinder (31). The inner cavities of the third steam outlet pipe head (317) and the third steam inlet pipe head (318) are both connected to the drying chamber (311).

6. A reed down production line according to claim 4, characterized in that: The preheating conveyor (10) comprises a conveying cylinder (11) and a preheating cover (12) fixed on the conveying cylinder (11); a preheating chamber (121) is provided between the preheating cover (12) and the conveying cylinder (11); a conveying shaft (13) is rotatably nested inside the conveying cylinder (11); a first spiral blade (14) is sleeved on the conveying shaft (13); a first steam inlet pipe head (122) is provided at the front right end of the preheating cover (12); and a first steam outlet pipe head (123) is provided at the lower left end of the preheating cover (12); A first feed port (16) is provided at the upper left end of the conveying cylinder (11), and a first discharge port (17) is provided at the lower right end of the conveying cylinder (11), and the first discharge port (17) is connected to the second feed port (212).

7. A reed down production line according to claim 6, characterized in that: The left end of the conveying shaft (13) rotates to penetrate the left side wall of the conveying cylinder (11) and protrude out of the conveying cylinder (11). A first driving component (15) for driving the conveying shaft (13) to rotate is provided at the rear of the conveying cylinder (11).

8. The reed down production line according to claim 6, characterized in that: The heat source group includes an electric steam generator (40), a filter (50) and a circulation pump (60); The steam output end of the electric steam generator (40) is connected to the second steam inlet pipe head (216), the third steam inlet pipe head (318) and the air intake pipe head (334) through pipelines, respectively; the exhaust pipe head (335) and the third steam outlet pipe head (317) are both connected to the first steam inlet pipe head (122) through pipelines; the first steam outlet pipe head (123) is connected to the circulation pump (60) through a pipeline; the circulation pump (60) is connected to the feed end of the electric steam generator (40) through a pipeline; the second steam inlet pipe head (216) is connected to the filter (50) through a pipeline; and the output end of the filter (50) is connected to the feed end of the electric steam generator (40) through a pipeline.

9. The reed down production line according to claim 1, characterized in that: A first screw propeller is provided between the buffer bin and the extrusion tearing machine (70); The discharge end of the high-concentration grinding mill (90) is provided with a second screw propeller, the discharge end of the second screw propeller is provided with a belt conveyor, the discharge end of the belt conveyor is provided with a collection bin, and the discharge end of the collection bin is provided with a baler.

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