Stirring device of screw feeder

Abstract

The utility model belongs to the technical field of screw feeders, and particularly relates to a stirring device of a screw feeder, which comprises a shell, an auger is arranged in the shell, a stirring mechanism is arranged above the auger, a material blocking assembly is arranged above the stirring mechanism, the material blocking assembly comprises a material blocking plate movably mounted in a material bin, and the material blocking plate is arranged in the material bin. The stirring assembly is arranged above the packing auger, materials above the packing auger are scattered, the bridging phenomenon is prevented, the striker plate is arranged, the striker plate can be opened in the blanking process, the feeding port of the stock bin can be closed, and the feeding port of the stock bin can be opened. And the size of an opening gap of the baffle plate is controlled according to the blanking amount, and the blanking plate is closed when blanking is not carried out, so that the materials can be effectively prevented from flying out of the stock bin when the stirring mechanism works through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of screw feeders, in particular to a stirring device of a screw feeder. Background Art

[0002] my country is a large agricultural country with abundant biomass resources. Various crops produce more than 600 million tons of straw each year. Biomass power generation mainly uses agricultural, forestry and industrial waste as raw materials, and can also use urban garbage as raw materials, adopting direct combustion or gasification to generate electricity. In actual use in my country, bark residue, straw and other plant fuels are usually directly burned or fermented into biogas and then burned. The heat generated by the combustion makes the water vapor drive the turbine to generate electricity. After the bark residue, straw and other materials are crushed, they enter the feeder from the silo by their own gravity. Before entering the feeder, the material is easy to agglomerate and form an arch bridge above the screw rod, which cannot enter the feeder smoothly, affecting the material transportation.

[0003] CN214691728U discloses a stirring device of a screw feeder and a screw feeder, wherein the screw feeder comprises a casing and a screw rod arranged in the casing, the stirring device comprises a stirring shaft, the stirring shaft extends perpendicular to the feeding direction of the feed hopper, and one end of the stirring shaft is inserted into the feed hopper and the shaft body portion inserted into the feed hopper is provided with stirring wings, and the other end of the stirring shaft extends outside the feed hopper and is used for transmission connection with a driving motor. Through the above technical scheme, the stirring device of the screw feeder provided in the present disclosure can solve the problem that the material is easy to agglomerate and form an arch bridge before entering the feeder. However, in the present utility model, the material of the stirring device is easy to fly out of the hopper during operation, resulting in material loss. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, the utility model provides a stirring device for a screw feeder.

[0005] A stirring device for a screw feeder comprises an outer shell, an auger is arranged in the outer shell, a stirring mechanism is arranged above the auger, a material blocking assembly is arranged above the stirring mechanism, and the material blocking assembly comprises a material blocking plate movably installed in a silo so that the material blocking plate has a closed state for blocking a material feed port of the silo, and an open state for opening the material feed port of the silo.

[0006] Furthermore, the stirring mechanism includes a plurality of rotating shafts, and a plurality of first stirring rod groups are evenly distributed on the circumference of the rotating shafts. The ends of the first stirring rods are hook structures inclined in the direction of rotation, and the first stirring rods on adjacent rotating shafts are staggered.

[0007] Furthermore, a mounting plate is provided on the side wall of the silo, and a second stirring rod group inclined downward is provided on the mounting plate, and the second stirring rods are staggered with the first stirring rods adjacent thereto.

[0008] Furthermore, the two baffle plates are symmetrically installed on the side wall of the silo, one end of the two baffle plates is rotatably connected to the silo through a rotating shaft, and the other ends of the two baffle plates are in contact with each other in a closed state and separated from each other in an open state.

[0009] Furthermore, one end of the rotating shaft extends out of the silo and is connected to a gear, the gear is meshed with a rack, the two racks are connected by a cross bar, the bottom of the cross bar is connected to a guide rod, the guide rod passes through a guide seat and is threadedly connected to a baffle, a telescopic rod is provided at the bottom of the baffle, a telescopic spring is provided on the outer periphery of the telescopic rod, the bottom of the telescopic rod is installed on a bottom plate, the top of the telescopic spring is connected to the baffle, and the bottom is connected to the bottom plate, and the guide seat is fixedly installed on the side wall of the silo.

[0010] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is as follows: in the utility model, a stirring assembly is arranged above the auger to break up the material above the auger to prevent the occurrence of bridging, and a baffle plate is arranged, which can be opened when the material is falling, and the size of the opening gap of the baffle plate is controlled according to the amount of the falling material. When the material is not falling, the baffle plate is closed. This design can effectively prevent the material from flying out of the silo when the stirring mechanism is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of a stirring device of a spiral feeder of the utility model;

[0012] Figure 2 This is a front view of a stirring device of a spiral feeder of the utility model;

[0013] Figure 3 This is a rear view of a stirring device of a spiral feeder of the utility model;

[0014] Figure 4 This is a top view of a stirring device of a spiral feeder of the utility model;

[0015] Figure 5 For this utility model Figure 4 Schematic diagram of the cross-sectional structure along the AA direction.

[0016] In the figure, 1, housing, 2, auger, 3, baffle plate, 4, silo, 5, feed port, 6, rotating shaft, 7, hook claw, 8, first stirring rod, 9, mounting plate, 10, second stirring rod, 11, gear, 12, rack, 13, cross bar, 14, guide rod, 15, guide seat, 16, baffle, 17, telescopic rod, 18, telescopic spring, and 19, bottom plate. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0018] according to Figure 1-5 As shown, a stirring device of a screw feeder comprises a shell 1, an auger 2 is arranged in the shell 1, a stirring mechanism is arranged above the auger 2, a material baffle assembly is arranged above the stirring mechanism, and the material baffle assembly comprises a material baffle plate 3 movably installed in a silo 4, so that the material baffle plate 3 has a closed state for blocking a feed port 5 of the silo 4, and an open state for opening the feed port 5 of the silo 4.

[0019] In the above specific technical scheme, a stirring assembly is arranged above the auger 2 to break up the material above the auger 2 to prevent the occurrence of bridging, and a baffle plate 3 is arranged. The baffle plate 3 can be opened when the material is falling, and the size of the opening of the gap of the baffle plate 3 is controlled according to the amount of the falling material. When the material is not falling, the baffle plate is closed, which can effectively prevent the material from flying out of the silo 4 when the stirring mechanism is working.

[0020] The stirring mechanism includes a plurality of rotating shafts 6, and a plurality of first stirring rod groups are evenly distributed in the circumference of the rotating shafts 6. The ends of the first stirring rods 8 are hook claws 7 structures inclined in the direction of rotation. The first stirring rods 8 on adjacent rotating shafts 6 are staggered. By arranging the first stirring rods 8 staggered with each other, the agglomerated materials can be broken up.

[0021] It is worth mentioning that the rotating shaft 6 is driven by a motor and transmitted through a sprocket chain mechanism, thereby driving several rotating shafts to rotate. This is existing technology and will not be described in detail here.

[0022] A mounting plate 9 is provided on the side wall of the silo 4, and a second stirring rod group inclined downward is provided on the mounting plate 9. The second stirring rod 10 is staggered with its adjacent first stirring rod 8. By setting the second stirring rod 10, the first stirring rod 8 cooperates with the second stirring rod 10 to break up the material that falls to the edge of the silo 4.

[0023] The two baffle plates 3 are symmetrically installed on the side walls of the silo 4. One end of the two baffle plates 3 is rotatably connected to the silo 4 through a rotating shaft 6, and the other ends of the two baffle plates 3 are in contact with each other in a closed state and separated from each other in an open state.

[0024] One end of the rotating shaft 6 extends out of the silo 4 and is connected to the gear 11, the gear 11 is meshed with the rack 12, the two racks 12 are connected by a cross bar 13, the bottom of the cross bar 13 is connected to the guide rod 14, the guide rod 14 passes through the guide seat 15 and is threadedly connected to the baffle 16, a telescopic rod 17 is provided at the bottom of the baffle 16, a telescopic spring 18 is sleeved on the outer periphery of the telescopic rod 17, the bottom of the telescopic rod 17 is installed on the bottom plate 19, the top of the telescopic spring 18 is connected to the baffle 16, and the bottom is connected to the bottom plate 19, and the guide seat 15 is fixedly installed on the side wall of the silo 4.

[0025] In the above-mentioned specific technical scheme, when the material falls from the top of the silo 4, the baffle plates 3 rotate under the action of the material, one of them rotates clockwise and the other rotates counterclockwise, so that a gap for falling material is formed between the two baffle plates 3, and the material falls onto the stirring mechanism and is broken up by the stirring mechanism. The broken up material is transported forward by the auger 2. When a large amount of material falls into the silo 4, the two baffle plates 3 rotate at a large angle due to the influence of the gravity of the material, thereby facilitating the falling of the material. When a small amount of material falls into the silo 4, the baffle plates 3 are subjected to less force and the rotation angle is also smaller. When no material enters the silo 4, the two baffle plates 3 block the feed port 5 of the silo 4. Through this design method, it can be ensured that when the stirring mechanism is working, the baffle plates 3 can prevent the material from flying out of the silo 4.

[0026] In actual use, the amount of material entering the silo 4 is uneven. When a large amount of material falls on the baffle plate 3, the baffle plate 3 rotates, and the baffle plate 3 drives the gear 11 to rotate. The gear 11 meshes with the rack 12. The rotation of the gear 11 drives the rack 12 to move downward, driving the cross bar 13 and the guide rod 14 to move downward. When the amount of material entering the silo 4 changes from large to small, the baffle 16 moves upward under the action of the spring, thereby driving the rack 12 to move upward. In the process of the rack 12 moving, the gear 11 is driven to rotate, and the gear 11 rotates, driving the baffle plate 3 to rotate, thereby reducing the gap between the two baffle plates 3. It is worth mentioning that the staff needs to select a spring with a suitable elastic coefficient. When a certain amount of material falls on the baffle plate 3, the baffle plate 3 can rotate. When the material is less than this amount, the rack 12 can move upward under the action of the spring.

[0027] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A stirring device for a screw feeder, comprising a housing (1), characterized in that: An auger (2) is arranged in the housing (1), a stirring mechanism is arranged above the auger (2), a material blocking assembly is arranged above the stirring mechanism, and the material blocking assembly comprises a material blocking plate (3) movably mounted in the silo (4), so that the material blocking plate (3) has a closed state for blocking a feed port (5) of the silo (4), and an open state for opening the feed port (5) of the silo (4).

2. The stirring device of a screw feeder according to claim 1, characterized in that: The stirring mechanism comprises a plurality of rotating shafts (6), a plurality of first stirring rod groups are evenly distributed in the circumferential direction of the rotating shafts (6), the ends of the first stirring rods (8) are hook claws (7) inclined in the direction of rotation, and the first stirring rods (8) on adjacent rotating shafts (6) are arranged in a staggered manner.

3. The stirring device of a screw feeder according to claim 2, characterized in that: A mounting plate (9) is provided on the side wall of the silo (4), and a second stirring rod group inclined downward is provided on the mounting plate (9), wherein the second stirring rod (10) is arranged alternately with the first stirring rod (8) adjacent thereto.

4. The stirring device of a screw feeder according to claim 1, characterized in that: The two baffle plates (3) are symmetrically mounted on the side wall of the silo (4); one end of the two baffle plates (3) is rotatably connected to the silo (4) via a rotating shaft (6); the other ends of the two baffle plates (3) are in contact with each other in a closed state and are separated from each other in an open state.

5. The stirring device of a screw feeder according to claim 4, characterized in that: One end of the rotating shaft (6) extends out of the silo (4) and is connected to a gear (11); the gear (11) is meshed with a rack (12); the two racks (12) are connected via a cross bar (13); the bottom of the cross bar (13) is connected to a guide rod (14); the guide rod (14) passes through a guide seat (15) and is threadedly connected to a baffle (16); a telescopic rod (17) is provided at the bottom of the baffle (16); a telescopic spring (18) is sleeved on the outer periphery of the telescopic rod (17); the bottom of the telescopic rod (17) is mounted on a bottom plate (19); the top of the telescopic spring (18) is connected to the baffle (16); and the bottom is connected to the bottom plate (19); the guide seat (15) is fixedly mounted on a side wall of the silo (4).

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