Arch breaking device for particles or powder

Abstract

The utility model relates to the technical field of material conveying, and discloses a particle or powder arch breaking device which comprises a bottom frame and a stock bin erected in a cavity of the bottom frame, a feeding screw is horizontally arranged at the bottom of the stock bin, one end of the feeding screw is arranged on the side wall of the stock bin, the other end of the feeding screw is connected with a discharging structure, and the discharging structure is communicated with one side of the stock bin. A spiral stirring shaft is axially erected on the side wall of the stock bin above the feeding screw rod in parallel, and the spiral stirring shaft and the feeding screw rod are arranged in the direction opposite to the rotating direction and the rotating direction; the problems that in the prior art, when a stirring paddle or an air hammer breaks an arch, materials are prone to being stirred or vibrated to be hard and cannot reach the bottom, so that no materials can be discharged from a feeding screw, and the feeding effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a particle or powder arch breaking device. Background Art

[0002] When powdered or granular materials are unloaded from a silo, due to the frictional force and adhesive force between particles and between particles and the inner wall of the silo, the materials form a bridge in the silo.

[0003] Currently, the commonly used arch breaking methods generally use stirring paddles or pneumatic hammers for vibration, such as: an arch breaking screw conveyor with the publication number CN107010333A. However, when stirring with this spiral stirring blade or breaking the arch with a pneumatic hammer, it is easy to harden or vibrate and harden the materials, and the arch breaking effect is not good; also, because the feeding screw of the feeder for particles or powders is at the bottom of the silo, the hardened or vibrated and hardened materials cannot reach the bottom, resulting in no material for the feeding screw to discharge, and the feeder cannot discharge materials normally. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a particle or powder arch breaking device, which overcomes the problems in the prior art that when using a stirring paddle or a pneumatic hammer to break the arch, it is easy to harden or vibrate and harden the materials, and the materials cannot reach the bottom, resulting in no material for the feeding screw to discharge and poor feeding effect.

[0005] In order to achieve the above object, the present application adopts the following technical solutions.

[0006] The utility model is a particle or powder arch breaking device, including: a chassis, a silo erected in the cavity of the chassis, a feeding screw horizontally arranged at the bottom of the silo, one end of the feeding screw is arranged on the side wall of the silo, the other end is connected with a discharging structure, the discharging structure is arranged through one side of the silo, and a spiral stirring shaft is axially and parallelly erected on the side wall of the silo above the feeding screw, and the spiral stirring shaft is arranged with a reverse helix and rotation direction to the feeding screw.

[0007] Further improvement lies in that: two spiral stirring shafts are arranged at intervals and symmetrically on the upper side of the feeding screw. The spiral stirring shaft includes: a main shaft and spiral teeth arranged outside the main shaft. One end of the main shaft is connected with a stirring motor through a transmission component. The feeding screw includes: a feeding main shaft and spiral fins arranged in the middle of the feeding main shaft. One end of the feeding main shaft is connected with a driving motor through a feeding transmission component.

[0008] Further improvement lies in that: the spiral fins are arranged with variable pitch.

[0009] Further improvement lies in that: the transmission component and the feeding transmission component are set as synchronous belt wheel transmission.

[0010] A further improvement lies in that the drive motor and the stirring motor are servo motors electrically connected to the main control unit.

[0011] A further improvement lies in that the silo includes a bottom-closed conical bin body, a feed inlet arranged above the conical bin body, and a discharge outlet arranged on one side of the conical bin body and adapted to the discharge structure. A bearing installation structure is arranged on the opposite side of the discharge outlet and is rotatably connected to the feeding screw in a matching manner.

[0012] A further improvement lies in that the silo further includes a cover plate arranged at the upper end of the feed inlet. An opening communicating with the cavity of the silo is provided on the cover plate. An outwardly convex connecting flange is further provided outside the opening. The cover plate is fixedly connected to the chassis through a support structure. A side plate is further provided on the side of the silo.

[0013] A further improvement lies in that a feeding silo is further provided above the silo.

[0014] The utility model has the following beneficial effects compared with the prior art:

[0015] Compared with the prior art, the utility model has a reasonable structure and is convenient to use. By arranging a feeding screw at the bottom of the silo and axially and parallelly arranging a spiral stirring shaft for arch breaking on the side wall of the silo above the feeding screw, it is not necessary to stir or vibrate the agglomerated particles or powders in the silo, thereby avoiding the hardening of the materials therein due to stirring or vibration. At the same time, due to the continuous rotation of the spiral stirring shaft, the materials bridging the arch are broken by spiral propulsion from the bottom end. Since the spiral directions and rotation directions of the spiral stirring shaft and the feeding screw are set in the opposite direction, the materials after arch breaking are conveyed in the opposite direction of feeding by the spiral stirring shaft, so that the materials above the spiral stirring shaft are conveyed to the rear end of the feeding screw, achieving the arch breaking effect under the conveying state, so that the loose particles or powders fall to the bottom of the feeding screw, realizing smooth feeding. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0017] Figure 2 It is a side view of the utility model.

[0018] Figure 3 It is another side view of the utility model.

[0019] Figure 4 It is a schematic diagram of the internal structure and transmission of the conical bin body of the utility model.

[0020] Figure 5 It is a front view of the spiral stirring shaft and its accessories of the utility model.

[0021] Figure 6 It is a front view of the feeding screw of the utility model.

[0022] Figure 7 This is a schematic three-dimensional structure diagram of another embodiment of the present utility model.

[0023] Reference numerals in the drawings:

[0024] Chassis 1, silo 2, conical bin body 21, feed inlet 22, connecting flange 24, cover plate 25, side plate 26, spiral stirring shaft 3, main shaft 31, spiral teeth 32, transmission assembly 33, stirring motor 34, feeding screw 4, feeding main shaft 41, spiral fins 42, feeding transmission assembly 43, driving motor 44, discharging structure 5, feeding bin 6. Specific embodiments

[0025] In order to deepen the understanding of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings. This embodiment is only used to explain the present utility model and does not constitute a limitation to the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the combination or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments:

[0028] As Figure 1-4 There is provided a particle or powder arch-breaking device according to an embodiment, including: a chassis 1 for supporting a silo 2, a silo 2 erected in the cavity of the chassis 1, a feeding screw 4 horizontally provided at the bottom of the silo 2, one end of the feeding screw 4 is rotatably and sealingly arranged on the side wall of the silo through a bearing and a bearing seat, and the other end penetrates through the other side wall of the silo and is rotatably connected to a discharging structure 5. Above the feeding screw 4, a spiral stirring shaft 3 is axially and parallelly erected on the side wall of the silo. The spiral stirring shaft 3 is arranged with a spiral direction and a rotation direction opposite to those of the feeding screw 4; the silo 2 includes a conical bin body 21 with a closed bottom, a feed inlet 22 provided above the conical bin body 21, and a discharge port provided on one side of the conical bin body 21 and adapted to the discharging structure 5. On the opposite side of the discharge port, there is a bearing mounting structure rotatably connected to the feeding screw 4; the silo 2 further includes a cover plate 25 covering the upper end of the feed inlet 22. The cover plate 25 is provided with an opening communicating with the cavity of the silo, and an outwardly protruding connecting flange 24 is further provided outside the opening. The cover plate 25 is fixedly connected to the chassis 1 through a support structure, and a side plate 26 is further provided on the side of the silo 2.

[0029] By arranging a feeding screw 4 at the bottom of the bin 2 and axially and parallelly arranging a spiral stirring shaft 3 for arch breaking on the side wall of the bin above the feeding screw 4, it is not necessary to stir or vibrate the agglomerated particles or powders in the bin, thus avoiding the hardening of the materials therein due to stirring or vibration. At the same time, due to the continuous rotation of the shaft of the spiral stirring shaft 3, the materials of the arch bridge are broken by spiral propulsion starting from the bottom end. Since the spiral stirring shaft 3 and the feeding screw 4 are arranged with opposite spiral directions and rotation directions, the materials after arch breaking are conveyed in the opposite direction of feeding by the spiral stirring shaft 3, so that the materials on the spiral stirring shaft 3 are conveyed to the rear end of the feeding screw 4, achieving the arch breaking effect under the conveying state, so that the loose particles or powders fall to the bottom of the feeding screw 4, realizing smooth feeding.

[0030] An optional implementation mode: As Figure 3-5 shown, two spiral stirring shafts 3 are arranged at intervals and symmetrically arranged above the sides of the feeding screw 4. The spiral stirring shaft 3 includes: a main shaft 31 and spiral teeth 32 arranged outside the main shaft 31. One end of the main shaft 31 is connected to a stirring motor 34 through a transmission component 33. The feeding screw 4 includes: a feeding main shaft 41 and spiral fins 42 arranged in the middle of the feeding main shaft 41. One end of the feeding main shaft 41 is connected to a driving motor 44 through a feeding transmission component 43; wherein, the spiral teeth 32 and the spiral fins 42 can be set as a split structure, and a sleeve with internal teeth or spline teeth is arranged at the central position of the spiral structure, and is fixed after being adapted to the external tooth section arranged on the main shaft 31 or the feeding main shaft 41 respectively; the transmission component 33 and the feeding transmission component 43 are set as synchronous belt wheel transmission, and can also be set as gear transmission; the stirring motor 34 and the driving motor 44 are fixed to the chassis 1 through an electric frame support; two spiral stirring shafts 3 are arranged at intervals and symmetrically arranged above the sides of the feeding screw 4, and the arch breaking is balanced and uniform. Three or more can also be arranged, horizontally arranged at intervals, or arranged in a staggered arrangement up and down;

[0031] An optional implementation mode: As Figure 6 shown, the spiral fins 42 are arranged with variable pitch; ensuring smooth material conveying.

[0032] An optional implementation mode: The driving motor 44 and the stirring motor 34 are set as servo motors and are electrically connected to the main control unit; the main control unit can control the speed ratio of the driving motor 44 and the stirring motor 34 through a PLC, so that the speeds of the two operate in proportion for automatic material control.

[0033] An optional implementation mode: As Figure 7 shown, it further includes a feeding bin 6 arranged above the bin 2. The feeding bin 6 is set as a conical cavity structure with upper and lower openings. A bottom flange is arranged at the lower opening and is connected to the cover plate 25 at the top of the bin 2. The lower opening is adapted to the opening of the cover plate 25 to form a cavity structure that is communicated with the bin 2 and can store more materials.

[0034] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A particle or powder arch-breaking device, comprising: The chassis (1), a bin (2) installed in the cavity of the chassis (1), a feeding screw (4) horizontally arranged at the bottom of the bin (2), one end of the feeding screw (4) is arranged on the side wall of the bin, and the other end is connected to the discharging structure (5), the discharging structure (5) is arranged through the side of the bin (2), and it is characterized in that: a spiral stirring shaft (3) is axially and parallelly installed on the side wall of the bin above the feeding screw (4), and the spiral stirring shaft (3) is arranged with a spiral direction and rotation direction opposite to that of the feeding screw (4).

2. The arch-breaking device for particles or powders according to claim 1, wherein; There are two spiral stirring shafts (3) arranged at intervals and symmetrically arranged above the side of the feeding screw (4), and the spiral stirring shaft (3) includes: a main shaft (31) and spiral teeth (32) arranged outside the main shaft (31), one end of the main shaft (31) is connected to the stirring motor (34) through a transmission component (33), the feeding screw (4) includes: a feeding main shaft (41) and spiral fins (42) arranged in the middle of the feeding main shaft (41), and one end of the feeding main shaft (41) is connected to the driving motor (44) through a feeding transmission component (43).

3. The particle or powder arch-breaking device according to claim 2, wherein; The spiral fins (42) are arranged with variable pitch.

4. The particle or powder arch-breaking device according to claim 2, wherein; The transmission component (33) and the feeding transmission component (43) are set as synchronous pulley transmissions.

5. The particle or powder arch-breaking device according to claim 2, characterized in that; The driving motor (44) and the stirring motor (34) are set as servo motors and are electrically controlled and connected to the main control unit.

6. The granule or powder arch-breaking device according to claim 1, characterized in that; The bin (2) includes a bottom-closed conical bin body (21), a feeding port (22) arranged above the conical bin body (21), and a discharging port arranged on one side of the conical bin body (21) and adapted to the discharging structure (5), and a bearing installation structure is arranged on the opposite side of the discharging port and is rotatably connected to the feeding screw (4) in a matching manner.

7. The particle or powder arch-breaking device according to claim 1, wherein; The bin (2) further includes a cover plate (25) arranged on the upper end of the feeding port (22), an opening communicating with the bin cavity is arranged on the cover plate (25), a connecting flange (24) protruding outward is further arranged outside the opening, the cover plate (25) is fixedly connected to the chassis (1) through a support structure, and a side plate (26) is further arranged on the side of the bin (2).

8. The particle or powder arch-breaking device according to any one of claims 1-7, characterized in that; It further includes a feeding bin (6) arranged above the bin (2).

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