Feed puffing equipment capable of utilizing waste heat

Abstract

The invention discloses feed puffing equipment capable of utilizing waste heat, which is applied to the field of feed processing, and is provided with a driving assembly, a switching assembly, a pushing assembly, a conveying assembly and a waste heat collecting assembly, so that feed can be fed before puffing by adopting a single driving device; feeding in the puffing extrusion process and intermittent cutting of puffed feed after extrusion discharge are completed, and continuous discharge or intermittent feed discharge can be adjusted; by arranging the waste heat collecting assembly and the heat preservation assembly, after feed is discharged, the waste heat collecting assembly is used for receiving the feed, steam mist generated when the feed is discharged is collected and conveyed into the heat preservation assembly, the steam mist is gathered in the heat preservation assembly, a heat preservation layer is formed in a heat preservation bin through heat of the steam mist, and the heat preservation layer can conduct heat preservation on a heating plate; the outward radiating speed of the heat of the heating plate is reduced; in conclusion, the energy-saving effect is achieved whether a single driving device achieves multifunctional driving or waste heat utilization.

Description

Technical Field

[0001] The invention relates to the field of feed processing, and in particular to feed puffing equipment capable of utilizing waste heat. Background Art

[0002] Extruded feed is a pelletized feed processed by extrusion technology. When the feed is squeezed out of the die hole under great pressure, it suddenly leaves the body and enters the atmosphere, causing the temperature and pressure to drop sharply, causing the water in the feed to evaporate quickly and the volume of the feed to expand rapidly. When the existing feed extrusion equipment is in use, the feed is discharged through the equipment, and the feed will have a certain amount of heat. This heat will form steam mist and dissipate in the air, which cannot be collected and utilized, resulting in waste. In order to solve the above problems, we propose a feed extrusion equipment that can utilize waste heat. Summary of the invention

[0003] The purpose of the present invention is to provide a feed puffing device capable of utilizing waste heat, the advantage of which is that the discharged feed heat can be collected and utilized.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a feed puffing device capable of utilizing waste heat, comprising an extrusion cylinder, a heat preservation component and a waste heat collection component are respectively installed on the surface of the extrusion cylinder, a conveying component is arranged inside the extrusion cylinder, a hopper is connected to the upper surface of the extrusion cylinder, a fixed shell is installed at one end of the extrusion cylinder, a pushing component and a switching component are respectively arranged inside the hopper and the fixed shell, a driving component is installed on the side of the fixed shell away from the extrusion cylinder, and a steam connection pipe is also connected to the surface of the extrusion cylinder; A heating plate is also installed inside the extrusion cylinder.

[0005] By adopting the above technical scheme, by setting up a switching component, a driving component, a pushing component, a waste heat collection component and a conveying component, a single drive can be used to realize the conveying of feed in the hopper, the extrusion of feed in the extrusion barrel, and the cutting of feed after extrusion molding; and through the cooperation of the insulation component and the waste heat collection component, the waste heat of the feed after being discharged from the equipment and expanded can be collected to form a heat preservation layer on the outside of the heating plate; the preheating is utilized to reduce the volatilization of heat from the heating plate.

[0006] The present invention is further configured as follows: the heat-insulating assembly comprises a heat-insulating cylinder, the heat-insulating cylinder is fixedly sleeved on the surface of the extrusion cylinder, and a heat-insulating bin is provided inside the heat-insulating cylinder.

[0007] The above technical solution is adopted, by setting a heat preservation component, which is used to form a heat preservation layer on the surface of the extrusion cylinder where the heating plate is located; the upper surface of the heat preservation cylinder is connected with a one-way exhaust valve, and the flow direction of the valve is from bottom to top, which can prevent the external cold air from entering the heat preservation bin; the steam mist after the feed is puffed can be collected inside the heat preservation bin, and as the feed is continuously discharged, the equipment continuously collects the steam mist, and the heat of the steam mist is received inside the heat preservation bin to form a wrapping space, so as to surround the surface of the extrusion cylinder where the heating plate is located, thereby realizing the utilization of the heat of the steam mist formed after the feed is discharged, and realizing the heat preservation of the outer layer of the extrusion cylinder where the heating plate is located; After the equipment is shut down, feed is no longer produced, the steam mist generated by the feed disappears, and the steam mist inside the insulation bin is discharged through the one-way valve.

[0008] The present invention is further configured as follows: the waste heat collection assembly includes a collection bin, a waste heat guide groove is provided inside the collection bin, a side of the waste heat guide groove close to the insulation bin is connected to the insulation bin, a material receiving groove connected to the waste heat guide groove is also provided inside the collection bin, and a side of the collection bin close to the insulation barrel is sealed and fixedly connected to the insulation barrel through a flange; The interior of the collecting bin is sleeved with a discharging assembly.

[0009] The above technical solution is adopted to collect the heat of the feed after it is discharged from the equipment and expanded by setting the waste heat collection component; After the feed is extruded through the discharge assembly, the temperature difference between the extrusion barrel and the outside is too large, the moisture in the feed evaporates quickly, and the volume of the feed expands rapidly to complete puffing. The steam mist generated by the rapidly evaporating water will enter the waste heat guide groove and then enter the insulation bin, and then gather inside the insulation bin to form an insulation layer.

[0010] The present invention is further configured as follows: the discharging assembly comprises a discharging plate, a plurality of discharging holes are opened inside the discharging plate, a connecting rod is rotatably connected to the inside of the discharging plate through a bearing, a plug rod is fixedly connected to one side of the connecting rod, a cutter is fixedly sleeved on the surface of the connecting rod, and the cutter is located on the outside of the discharging plate; A connecting seat which is threadedly connected to the extrusion cylinder is fixedly sleeved on the surface of the discharge plate.

[0011] The above technical solution is adopted, through the setting of the discharging component, to cooperate with the conveying component to realize the extrusion of the feed; At the same time, it is used to cooperate with the conveying component to cut off the feed after extrusion; Specifically, when the conveying auger and the rotating rod rotate, the conveying auger will squeeze the feed through the discharge hole to form strips and discharge them from the inside of the equipment; The rotation of the rotating rod will drive the insert rod, connecting rod and cutter to rotate inside the discharge plate with the cooperation of the bearing; when the cutter rotates, it can cut off the feed that has been extruded through the discharge hole; The connecting seat is used to fix the discharge plate; It should be noted that the rotation direction of the rotating rod should be opposite to the direction of the threaded connection between the connecting seat and the extrusion cylinder. This design can ensure that when the rotating rod rotates to drive the cutter to rotate and cut the feed, the threads between the connecting seat and the extrusion cylinder will not be separated.

[0012] The present invention is further configured as follows: the conveying assembly comprises a conveying auger, the interior of the conveying auger is rotatably connected to a rotating rod via a bearing, and one end of the rotating rod is provided with a slot for clamping with the insertion rod; The conveying auger is rotatably connected to the extrusion cylinder through a bearing.

[0013] The above technical solution is adopted, through the setting of the conveying component, to extrude the feed and drive the cutter to rotate; The conveying auger conveys the material. Since the discharge space of the discharge hole is smaller than the diameter of the extrusion cylinder, the feed is pushed, squeezed, compressed and retracted and then discharged through the discharge hole. The inside of the slot is connected to the cutter. When the connecting seat is disassembled, the connecting seat rotates and its internal discharge plate rotates on the surface of the connecting rod through the bearing. As the connecting seat rotates away from the extrusion cylinder, the discharge plate moves with it and pulls the plug rod and the slot apart. To install the connector, you only need to insert the rod into the slot and tighten the connector and the extrusion barrel threads.

[0014] The present invention is further configured as follows: the pusher assembly comprises a pusher auger, a first bevel gear is fixedly sleeved on the surface of the pusher auger, a second bevel gear is meshed with the first bevel gear, a rotating rod is fixedly sleeved inside the second bevel gear, a first pulley is fixedly sleeved on the surface of the rotating rod, the first pulley is connected to the second pulley through a belt drive, and the second pulley is fixedly sleeved on the surface of the conveying auger; The push auger is rotatably connected to a bracket fixedly connected to the hopper via a bearing; The rotating rod is rotatably connected to a supporting plate fixedly connected to the bracket through a bearing.

[0015] The above technical solution is adopted, through the setting of the pushing assembly, so that the feed inside the hopper can rotate synchronously with the rotation of the conveying auger; When the conveying auger and the rotating rod need to rotate synchronously, the driving motor starts and drives the connecting rod to rotate, the connecting rod drives gear four to rotate, gear four drives gear one meshing with it to rotate, the rotation of gear one will simultaneously drive gear two meshing with it and the annular slide groove to rotate, when gear three rotates, it will drive pulley two to rotate, pulley two will rotate pulley one through the belt drive, pulley one drives the rotating rod inside it to rotate, the rotating rod drives the bevel gear one meshing with it to rotate, the bevel gear one drives the pushing auger to transport the feed inside the hopper downward into the inside of the extrusion cylinder, and the rotating conveying auger transports it forward.

[0016] The present invention is further configured as follows: the switching assembly includes a gear 1, a fixed plate is provided on one side of the gear 1, a cylinder is fixedly connected to one side of the fixed plate, a circular groove is provided on the other side of the fixed plate, and two sliders fixedly connected to the gear 1 are slidably connected inside the circular groove; Gear 2 and gear 3 are meshed inside the gear 1, the pulley 2 is fixedly sleeved on the surface of the rotating rod, and the gear 3 is fixedly sleeved on the surface of the conveying auger; The gear 1 is provided with a sleeve groove inside; The interior of the fixed shell is slidably connected to two guide rods fixedly connected to the fixed plate.

[0017] The above technical solution is adopted, through the setting of the switching component, to push and pull the gear 1 to reciprocate; and to drive the conveying auger and the rotating rod to rotate; The interior of gear one includes a sleeve groove and an inner tooth part, and the inner tooth part can mesh with gear two and gear three at the same time, and gear one is used to mesh with gear four; The cylinder is used to push gear one to move. When the sleeve groove inside gear one corresponds to gear two, the teeth inside gear one and gear three are in meshing state. At this time, the rotation of gear one can drive gear three and drive the conveying auger inside it to rotate. The conveying auger rotates alone to continuously squeeze the feed. After the cylinder pushes the internal teeth of gear one and gear two and gear three to mesh, gear one will drive gear two and gear three to rotate at the same time, and gear two and gear three will respectively drive the conveying auger and rotating rod to rotate; the synchronous rotation of the conveying auger and the rotating rod is used to continuously extrude the feed and intermittently cut off the feed.

[0018] The present invention is further configured as follows: the driving assembly comprises a driving motor, the output end of the driving motor is fixedly connected to a connecting rod via a coupling, and a gear 4 meshing with a gear 1 is fixedly sleeved on the surface of the connecting rod; The driving motor is rotatably connected to the fixed shell via a bearing, and the connecting rod is rotatably connected to the fixed shell via a bearing.

[0019] The above technical solution is adopted to drive the gear 1 to rotate through the setting of the driving assembly; When the drive motor is started, its output end will drive the connecting rod to rotate, the rotation of the connecting rod will drive gear four to rotate, and the rotation of gear four can drive gear one to rotate.

[0020] In summary, the present invention has the following beneficial effects: The present invention provides a driving component, a switching component, a pushing component, a conveying component and a waste heat collecting component. A single driving device can be used to realize feeding of feed before expansion, feeding during the expansion extrusion process and intermittent cutting of the expanded feed after extrusion and discharge, and can adjust continuous discharge and intermittent discharge during discharge; and by providing a waste heat collecting component and a heat preservation component, after the feed is discharged, the waste heat collecting component is used to receive the feed, and the steam mist generated when the feed is discharged is collected and conveyed to the inside of the heat preservation component, the steam mist is gathered inside the heat preservation component, and the heat of the steam mist is used to form a heat preservation layer in the heat preservation bin, so that the heat preservation of the heating plate can be realized by utilizing the waste heat of the steam mist formed after the feed is discharged, and the speed of heat dissipation of the heating plate to the outside is reduced; in summary, whether it is a single driving device to realize multi-functional driving or to utilize waste heat, it has certain energy-saving significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 The present invention Figure 2 A partial enlarged schematic diagram in the middle; Figure 4 is a schematic diagram of a conveying assembly of the present invention; Figure 5 Schematic diagram of the meshing of gear 1 and gear 3 of the present invention; Figure 6 It is a schematic diagram of the meshing of gear 1, gear 2 and gear 3 of the present invention; Figure 7 It is a schematic diagram of the meshing side of gear 3 and gear 1 of the present invention; Figure 8 is a cross-sectional view of a gear of the present invention; Fig. 9 It is a schematic diagram of the coordinated use of the annular slide groove and the slider of the present invention.

[0022] Reference numerals: 1, extrusion cylinder; 2. Insulation assembly; 21. Insulation cylinder; 22. Insulation bin; 3. Waste heat collection component; 31. Collection bin; 32. Waste heat guide trough; 33. Material receiving trough; 34. Discharging assembly; 341. Discharging plate; 342. Discharging hole; 343. Connecting rod; 344. Inserting rod; 345. Cutter; 346. Connecting seat; 4. Conveying assembly; 41. Conveying auger; 42. Rotating rod; 43. Slot; 5. Hopper; 6. Fixed shell; 7. Pushing assembly; 71. Pushing auger; 72. Bevel gear 1; 73. Bevel gear 2; 74. Rotating rod; 75. Pulley 1; 76. Pulley 2; 8. Switching assembly; 81. Gear 1; 82. Fixed plate; 83. Cylinder; 84. Circular slide groove; 85. Sliding block; 86. Gear 2; 87. Gear 3; 88. Guide rod; 89. Slot; 9. Driving assembly; 91. Driving motor; 92. Connecting rod; 93. Gear four; 10. Steam connecting pipe; 11. Heating plate. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1: refer to Figure 1-Figure 9 A feed puffing device capable of utilizing waste heat comprises an extrusion barrel 1, a heat preservation component 2 and a waste heat collection component 3 are respectively installed on the surface of the extrusion barrel 1, a conveying component 4 is arranged inside the extrusion barrel 1, a hopper 5 is connected to the upper surface of the extrusion barrel 1, a fixed shell 6 is installed at one end of the extrusion barrel 1, a pushing component 7 and a switching component 8 are respectively arranged inside the hopper 5 and the fixed shell 6, a driving component 9 is installed on the side of the fixed shell 6 away from the extrusion barrel 1, and a steam connecting pipe 10 is also connected to the surface of the extrusion barrel 1; a heating plate 11 is also installed inside the extrusion barrel 1; by arranging the driving component 9, the switching component 8, the pushing component 7, the conveying component 4 and the waste heat collection component 3, a single driving device can be used to realize the feeding of feed before puffing, and the puffing extrusion The feeding during the pressing process and the puffed feed after extrusion and discharge are intermittently cut off, and the continuous discharge and intermittent discharge can be adjusted during the discharge; and by arranging the waste heat collection component 3 and the insulation component 2, after the feed is discharged, the waste heat collection component 3 is used to receive the feed, and the steam mist generated when the feed is discharged is collected and transported to the inside of the insulation component 2, and the steam mist is gathered inside the insulation component 2, and the heat of the steam mist is used to form an insulation layer in the insulation bin 22, so that the waste heat of the steam mist formed after the feed is discharged can be used to keep the heating plate 11 warm, and the speed of heat dissipation from the heating plate 11 can be reduced; in summary, whether it is a single drive device to realize multi-functional drive or to utilize waste heat, it has certain energy-saving significance.

[0025] Furthermore, the heat preservation component 2 includes a heat preservation cylinder 21, which is fixedly sleeved on the surface of the extrusion cylinder 1, and a heat preservation bin 22 is provided inside the heat preservation cylinder 21. The heat preservation component 2 is provided to form a heat preservation layer on the surface of the extrusion cylinder 1 at the location of the heating plate 11. The upper surface of the heat preservation cylinder 21 is connected with a one-way exhaust valve, and the flow direction of the valve is from bottom to top, which can prevent the external cold air from entering the heat preservation bin 22. The steam mist after the feed is puffed can be collected inside the heat preservation bin 22, and as the feed is continuously discharged, the equipment continuously collects the steam mist, and the heat of the steam mist is received inside the heat preservation bin 22 to form a wrapping space, so as to surround the surface of the extrusion cylinder 1 at the location of the heating plate 11, thereby realizing the heat utilization of the steam mist formed after the feed is discharged, and realizing the heat preservation of the outer layer of the extrusion cylinder 1 at the location of the heating plate 11. After the equipment is shut down, the feed is no longer produced, the steam mist generated by the feed disappears, and the steam mist inside the heat preservation bin 22 is discharged through the one-way valve.

[0026] Furthermore, the waste heat collection component 3 includes a collecting bin 31, a waste heat guide groove 32 is provided inside the collecting bin 31, the side of the waste heat guide groove 32 close to the insulation bin 22 is connected to the insulation bin 22, and a receiving groove 33 connected to the waste heat guide groove 32 is also provided inside the collecting bin 31, and the side of the collecting bin 31 close to the insulation cylinder 21 is sealed and fixedly connected to the insulation cylinder 21 through a flange; a discharge component 34 is provided inside the collecting bin 31, and the waste heat collection component 3 is used to collect the heat of the feed after it is discharged from the equipment and expanded; after the feed is extruded through the discharge component 34, the temperature difference between the extrusion cylinder 1 and the outside is too large, the moisture in the feed evaporates quickly, and the volume of the feed expands rapidly to complete the expansion, and the steam mist generated by the rapidly evaporated moisture will enter the waste heat guide groove 32 and then enter the insulation bin 22, and gather inside the insulation bin 22 to form an insulation layer.

[0027] Furthermore, the discharge assembly 34 includes a discharge plate 341, and a plurality of discharge holes 342 are opened inside the discharge plate 341. A connecting rod 343 is rotatably connected to the inside of the discharge plate 341 through a bearing, and a plug rod 344 is fixedly connected to one side of the connecting rod 343. A cutter 345 is fixedly sleeved on the surface of the connecting rod 343, and the cutter 345 is located on the outer side of the discharge plate 341; a connecting seat 346 threadedly connected to the extrusion barrel 1 is fixedly sleeved on the surface of the discharge plate 341. Through the arrangement of the discharge assembly 34, it is used to cooperate with the conveying assembly 4 to realize the extrusion of the feed; at the same time, it is used to cooperate with the conveying assembly 4 to realize the cutting of the extruded feed; specifically, the conveying auger 41 and the rotating rod 42 When rotating, the conveying auger 41 will squeeze the feed through the discharge hole 342 to form strips and discharge them from the equipment; and the rotation of the rotating rod 42 will drive the insertion rod 344, the connecting rod 343 and the cutter 345 to rotate inside the discharge plate 341 with the cooperation of the bearing; when the cutter 345 rotates, it can cut off the feed that has been extruded through the discharge hole 342; the connecting seat 346 is used to fix the discharge plate 341; it should be noted that the rotation direction of the rotating rod 42 should be opposite to the direction of the threaded connection between the connecting seat 346 and the extrusion cylinder 1. This design can ensure that when the rotating rod 42 rotates to drive the cutter 345 to rotate and cut off the feed, there will be no thread separation between the connecting seat 346 and the extrusion cylinder 1.

[0028] The conveying assembly 4 includes a conveying auger 41, the interior of which is rotatably connected to a rotating rod 42 through a bearing, and one end of the rotating rod 42 is provided with a slot 43 that is engaged with the plug rod 344; the conveying auger 41 is rotatably connected to the extrusion cylinder 1 through a bearing, and is used to extrude feed and drive the cutter 345 to rotate through the arrangement of the conveying assembly 4; the conveying auger 41 transports the material, and since the discharge space of the discharge hole 342 is smaller than the diameter of the extrusion cylinder 1, the feed is pushed, squeezed, compressed and retracted and will be discharged through the discharge hole 342; the interior of the slot 43 is engaged with the cutter 345, and when the connecting seat 346 is disassembled, the connecting seat 346 rotates and its internal discharge plate 341 will rotate on the surface of the connecting rod 343 through the bearing, and as the connecting seat 346 rotates away from the extrusion cylinder 1, the discharge plate 341 moves with it and pulls the plug rod 344 and the slot 43 to separate; the connecting seat 346 is installed until the plug rod 344 needs to be inserted into the slot 43, and the connecting seat 346 and the extrusion cylinder 1 are threadedly locked.

[0029] Furthermore, the pushing assembly 7 includes a pushing auger 71, the surface of which is fixedly sleeved with a bevel gear 1 72, which meshes with a bevel gear 2 73, and a rotating rod 74 is fixedly sleeved inside the bevel gear 2 73, and a pulley 1 75 is fixedly sleeved on the surface of the rotating rod 74, which is connected to a pulley 2 76 through a belt drive, and the pulley 2 76 is fixedly sleeved on the surface of the conveying auger 41; the pushing auger 71 is rotatably connected to a bracket fixedly connected to the hopper 5 through a bearing; the rotating rod 74 is rotatably connected to a support plate fixedly connected to the bracket through a bearing, and the setting of the pushing assembly 7 is used to allow the feed inside the hopper 5 to rotate synchronously with the rotation of the conveying auger 41; When the gear 1 and the rotating rod 42 need to rotate synchronously, the driving motor 91 is started to drive the connecting rod 92 to rotate, the connecting rod 92 drives the gear four 93 to rotate, the gear four 93 drives the gear one 81 meshing with it to rotate, the rotation of the gear one 81 will simultaneously drive the gear two 86 and the annular slide groove 84 meshing with it to rotate, when the gear three 87 rotates, it will drive the pulley two 76 to rotate, the pulley two 76 will rotate through the belt drive pulley one 75, the pulley one 75 drives the rotating rod 74 inside it to rotate, the rotating rod 74 drives the bevel gear one 72 meshing with it to rotate, the bevel gear one 72 drives the pushing auger 71 to transport the feed inside the hopper 5 downward into the inside of the extrusion cylinder 1, and the rotating conveying auger 41 transports it forward.

[0030] Furthermore, the switching assembly 8 includes a gear 81, a fixed plate 82 is provided on one side of the gear 81, a cylinder 83 is fixedly connected to one side of the fixed plate 82, and a circular groove 84 is provided on the other side of the fixed plate 82, and two sliders 85 fixedly connected to the gear 81 are slidably connected inside the circular groove 84; a gear 2 86 and a gear 3 87 are meshed inside the gear 81, a pulley 2 76 is fixedly sleeved on the surface of the rotating rod 42, and a gear 3 87 is fixedly sleeved on the surface of the conveying auger 41; a sleeve groove 89 is provided inside the gear 81; two guide rods 88 fixedly connected to the fixed plate 82 are slidably connected inside the fixed shell 6, and are used to push and pull the gear 81 back and forth through the setting of the switching assembly 8; and play a role in driving the conveying auger 41 and the rotating rod 42 to rotate; the interior of the gear 81 includes a sleeve groove 89 and an inner tooth part, and the inner tooth part Part can mesh with gear two 86 and gear three 87 at the same time, and gear one 81 is used to mesh with gear four 93; cylinder 83 is used to push gear one 81 to move. When the sleeve groove 89 inside gear one 81 corresponds to gear two 86, the teeth inside gear one 81 and gear three 87 are in a meshing state; at this time, the rotation of gear one 81 can drive gear three 87 and drive the conveying auger 41 inside it to rotate; the conveying auger 41 rotates alone to continuously and uninterruptedly extrude the feed; after the cylinder 83 pushes the teeth inside gear one 81 and gear two 86 to mesh with gear three 87, when gear one 81 rotates, it will drive gear two 86 and gear three 87 to rotate at the same time, and gear two 86 and gear three 87 will respectively drive the conveying auger 41 and the rotating rod 42 to rotate; the synchronous rotation of the conveying auger 41 and the rotating rod 42 is used to continuously extrude the feed and intermittently cut off the feed.

[0031] Furthermore, the driving assembly 9 includes a driving motor 91, the output end of which is fixedly connected to a connecting rod 92 via a coupling, and a gear four 93 meshing with the gear one 81 is fixedly sleeved on the surface of the connecting rod 92; the driving motor 91 is rotationally connected to the fixed shell 6 via a bearing, and the connecting rod 92 is rotationally connected to the fixed shell 6 via a bearing, and is used to drive the gear one 81 to rotate through the setting of the driving assembly 9; when the driving motor 91 is started, its output end will drive the connecting rod 92 to rotate, and the rotation of the connecting rod 92 will drive the gear four 93 to rotate, and the rotation of the gear four 93 can drive the gear one 81 to rotate.

[0032] Working principle: When in use, the heating plate 11 is connected to a high-temperature steam device (not shown in the figure), and the feed raw materials are put into the hopper 5 after being mixed in proportion.

[0033] See also Figure 6 , Figure 2 and Figure 3The driving motor 91 is started to drive the connecting rod 92 and the gear 4 93 to rotate, the gear 4 93 drives the gear 1 81 meshing therewith to rotate, the gear 1 81 drives the gear 2 86 and the gear 3 87 meshing therewith to rotate, the gear 2 86 drives the conveying auger 41 to rotate, and the gear 3 87 drives the rotating rod 42 therein to rotate; When the rotating rod 42 rotates, it also drives the pulley 2 76 to rotate. The pulley 2 76 rotates through the belt drive pulley 1 75. The pulley 1 75 drives the rotating rod 74 inside it to rotate. The rotating rod 74 drives the bevel gear 2 73 to rotate. The bevel gear 2 73 drives the bevel gear 1 72 meshing with it to rotate. The bevel gear 1 72 drives the pushing auger 71 inside it to rotate. The pushing auger 71 rotates to push the feed material downward into the interior of the extrusion cylinder 1. The conveying auger 41 rotates to push the feed material to move toward the discharge plate 341. The steam device is started to input high-temperature steam from the steam connecting pipe 10 into the extrusion barrel 1 to rapidly heat the material and ripen the raw material, and the heating plate 11 is started to extrude the material. When the material reaches the discharge plate 341, the discharge hole 342 is reduced in size, and the material is compressed by the extrusion and pushed out through the discharge hole 342. When the discharge hole 342 is pushed out, the temperature difference between the outside and the inside of the extrusion barrel 1 is too large, the moisture in the material will evaporate quickly, causing its volume to expand rapidly and complete puffing, and the steam mist generated during the puffing process will enter the heat preservation bin 22 through the waste heat guide groove 32. After entering the heat preservation bin 22, the steam mist will gather at the location of the heating plate 11 to form a steam mist layer. The heat of the steam mist will heat the heat preservation barrel 21, thereby forming a heat preservation layer to keep the heat released by the heating plate 11 warm. When the feed is squeezed out, in order to ensure that the material is not discharged continuously, the conveying auger 41 rotates to drive the cutter 345 to rotate and cut the discharged feed; If continuous discharging is required, the cylinder 83 can be activated to pull the gear 1 81 away from the pulley 2 76 through its output end, so that the gear 1 81 moves and the sleeve groove 89 is sleeved on the surface of the gear 2 86 (see Figure 5 ), at this time, gear one 81 is only engaged with gear three 87, and the rotation of gear three 87 can only drive the conveying auger 41 to continuously convey and extrude the material for continuous discharge; at this time, the rotating rod 42 will not drive the cutter 345 to rotate.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A feed expansion device capable of utilizing waste heat, comprising an extrusion cylinder (1), characterized in that: The surface of the extrusion barrel (1) is respectively provided with a heat preservation component (2) and a waste heat collection component (3); a conveying component (4) is provided inside the extrusion barrel (1); the upper surface of the extrusion barrel (1) is connected to a hopper (5); a fixed shell (6) is provided at one end of the extrusion barrel (1); a pushing component (7) and a switching component (8) are provided inside the hopper (5) and the fixed shell (6); a driving component (9) is provided on a side of the fixed shell (6) away from the extrusion barrel (1); and a steam connection pipe (10) is also connected to the surface of the extrusion barrel (1); A heating plate (11) is also installed inside the extrusion cylinder (1).

2. The waste heat-utilizing feed puffing equipment according to claim 1, characterized in that: The heat-insulating assembly (2) comprises a heat-insulating cylinder (21), wherein the heat-insulating cylinder (21) is fixedly sleeved on the surface of the extrusion cylinder (1), and a heat-insulating chamber (22) is provided inside the heat-insulating cylinder (21).

3. The waste heat-utilizing feed puffing equipment according to claim 2, characterized in that: The waste heat collection assembly (3) comprises a collection bin (31), a waste heat guide groove (32) is provided inside the collection bin (31), a side of the waste heat guide groove (32) close to the heat preservation bin (22) is connected to the heat preservation bin (22), a material receiving groove (33) connected to the waste heat guide groove (32) is also provided inside the collection bin (31), and a side of the collection bin (31) close to the heat preservation barrel (21) is sealed and fixedly connected to the heat preservation barrel (21) via a flange; A material discharging assembly (34) is sleeved inside the collecting bin (31).

4. The waste heat-utilizing feed expansion equipment according to claim 3, characterized in that: The discharge assembly (34) comprises a discharge plate (341), a plurality of discharge holes (342) are provided inside the discharge plate (341), a connecting rod (343) is rotatably connected to the inside of the discharge plate (341) via a bearing, an insert rod (344) is fixedly connected to one side of the connecting rod (343), a cutter (345) is fixedly sleeved on the surface of the connecting rod (343), and the cutter (345) is located on the outside of the discharge plate (341); A connection seat (346) threadedly connected to the extrusion cylinder (1) is fixedly sleeved on the surface of the discharge plate (341).

5. The waste heat-utilizing feed expansion equipment according to claim 4, characterized in that: The conveying assembly (4) comprises a conveying auger (41), the interior of the conveying auger (41) being rotatably connected to a rotating rod (42) via a bearing, and one end of the rotating rod (42) is provided with a slot (43) for engaging with the insertion rod (344); The conveying auger (41) is rotatably connected to the extrusion cylinder (1) via a bearing.

6. The waste heat-utilizing feed puffing equipment according to claim 5, characterized in that: The pushing assembly (7) comprises a pushing auger (71), the surface of the pushing auger (71) is fixedly sleeved with a bevel gear 1 (72), the bevel gear 1 (72) is meshed with a bevel gear 2 (73), a rotating rod (74) is fixedly sleeved inside the bevel gear 2 (73), a pulley 1 (75) is fixedly sleeved on the surface of the rotating rod (74), the pulley 1 (75) is connected to the pulley 2 (76) via a belt drive, and the pulley 2 (76) is fixedly sleeved on the surface of the conveying auger (41); The pushing auger (71) is rotatably connected to a bracket fixedly connected to the hopper (5) via a bearing; The rotating rod (74) is rotatably connected to a support plate fixedly connected to the bracket via a bearing.

7. The waste heat-utilizing feed expansion equipment according to claim 6, characterized in that: The switching assembly (8) comprises a gear one (81), a fixed plate (82) being provided on one side of the gear one (81), a cylinder (83) being fixedly connected to one side of the fixed plate (82), a circular groove (84) being provided on the other side of the fixed plate (82), two sliding blocks (85) being fixedly connected to the gear one (81) being slidably connected inside the circular groove (84); The gear 1 (81) is internally meshed with the gear 2 (86) and the gear 3 (87); the pulley 2 (76) is fixedly sleeved on the surface of the rotating rod (42); and the gear 3 (87) is fixedly sleeved on the surface of the conveying auger (41); The gear 1 (81) has a sleeve groove (89) formed inside. Two guide rods (88) fixedly connected to the fixed plate (82) are slidably connected inside the fixed shell (6).

8. The waste heat-utilizing feed expansion equipment according to claim 7, characterized in that: The driving assembly (9) comprises a driving motor (91), the output end of the driving motor (91) being fixedly connected to a connecting rod (92) via a coupling, and a gear 4 (93) meshing with a gear 1 (81) being fixedly sleeved on a surface of the connecting rod (92); The driving motor (91) is rotatably connected to the fixed housing (6) via a bearing, and the connecting rod (92) is rotatably connected to the fixed housing (6) via a bearing.

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