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CN-122006878-A - Vertical mill feeding anti-blocking pre-screening device

CN122006878ACN 122006878 ACN122006878 ACN 122006878ACN-122006878-A

Abstract

The invention belongs to the technical field of feeding anti-blocking, and aims to provide a feeding anti-blocking pre-screening device of a vertical mill, which solves the problem that the feeding end of the vertical mill is easy to block due to high feeding humidity; the rotary type material feeding device comprises a shell, wherein a feed inlet and a discharge outlet are formed in the shell, a filter plate is arranged in the feed inlet, a material roller is arranged between the feed inlet and the discharge outlet, the material roller can rotate in the shell, a plurality of material cavities are formed in the circumference of the material roller, a swinging block is hinged to the rear side of the material roller in the rotation direction of the material roller, a torsion spring is arranged between the swinging block and the material roller, the swinging block always has a trend of being tightly attached to the shell, a swinging hammer is arranged in the material roller, and the swinging hammer can strike the material roller when the swinging block is contacted with or separated from the shell each time.

Inventors

  • LI XIUFENG
  • ZHANG QUANFENG
  • MA ZHIWEI
  • YANG GUOLIN
  • DU BIN
  • LI ANMING

Assignees

  • 卫辉市春江水泥有限公司

Dates

Publication Date
20260512
Application Date
20260319

Claims (8)

  1. 1. The utility model provides a vertical mill feeding anti-sticking prescreening device, a serial communication port, including casing (1), be equipped with feed inlet (2) and discharge gate (3) on casing (1), be equipped with filter plate (4) in feed inlet (2), be equipped with material roller (5) between feed inlet (2) and discharge gate (3), material roller (5) can rotate in casing (1), circumference all is equipped with a plurality of material chambeies (6) on material roller (5), every material chambeies (6) all articulate in material roller (5) direction of rotation's rear side has pendulum piece (7), be equipped with the torsional spring between pendulum piece (7) and material roller (5), the torsional spring makes pendulum piece (7) have the trend of pasting tightly casing (1) always, be equipped with pendulum (8) in material roller (5), pendulum (8) all can strike material roller (5) when pendulum piece (7) contact or separation with casing (1) at every time.
  2. 2. The vertical mill feeding anti-blocking pre-screening device according to claim 1 is characterized in that the middle of the shell (1) is columnar, the feeding hole (2) and the discharging hole (3) are both positioned on the outer circular surface of the columnar part and are respectively positioned on the upper side and the lower side, the material roller (5) and the columnar part are coaxially arranged, a gap is reserved between the outer wall of the material roller (5) and the inner wall of the shell (1), a rotating shaft is coaxially arranged on the material roller (5), and one end of the rotating shaft extends out of the shell (1) and is provided with a belt wheel.
  3. 3. The vertical mill feeding anti-blocking pre-screening device according to claim 1, characterized in that the material roller (5) comprises two coaxially arranged cylinders (9), a round tube (10) is fixed between the two cylinders (9), six partition plates (11) radially overlapped with the round tube (10) are uniformly distributed on the circumference of the outer wall of the round tube (10), an arc plate (12) is arranged at the outer end of each two adjacent partition plates (11), an inner cavity (13) is arranged in the area between each arc plate (12) and each partition plate (11) and the round tube (10), material cavities (6) are arranged in the area outside the arc plate (12), the partition plates (11) and the round tube (10), the inner cavities (13) and the material cavities (6) are three and are arranged at intervals, and a sealing ring (14) is arranged on one side, close to the round tube (10), of the round tube (9).
  4. 4. A vertical mill feeding anti-blocking pre-screening device according to claim 3, wherein when the feed roller (5) rotates clockwise, the feed inlet (2) is positioned at the left side of a vertical plane passing through the axis of the feed roller (5), and the central angles corresponding to two sections of arc-shaped inner walls between the feed inlet (2) and the discharge outlet (3) are both larger than (120).
  5. 5. The vertical mill feeding anti-blocking pre-screening device according to claim 3, wherein the material cavity (6) is provided with an arc-shaped groove (15) on a baffle plate (11) at the rear side of the rotation direction of the material roller (5), the section shape of the swinging block (7) is fan-shaped, the outer circular surface of the swinging block (7) is attached to the inner wall of the arc-shaped groove (15), and the swinging block (7) is not separated from the arc-shaped groove (15) all the time when rotating under the action of a torsion spring.
  6. 6. The vertical mill feeding anti-blocking pre-screening device according to claim 5, wherein the pendulum bob (8) comprises a round rod (16), a plurality of connecting rods (2417) are welded on the round rod (16), a balancing weight (18) is arranged at the other end of each connecting rod (2417), and the pendulum bob (8) is hinged on a partition plate (11) in the inner cavity (13) through the round rod (16).
  7. 7. The vertical mill feeding anti-blocking pre-screening device according to claim 6, wherein three through grooves (19) are formed in the side wall, close to the round tube (10), of the cylinder (9), a sleeve (20) is fixed to an inner cavity (13) of the cylinder (9) at the through grooves (19) through bolts, a first magnet (21) is arranged in the sleeve (20), a baffle plate (22) is bonded on one side, facing the round tube (10), of the first magnet (21), a pressure spring (23) is arranged between the first magnet (21) and the sleeve (20), the pressure spring (23) enables the baffle plate (22) to penetrate through the through grooves (19) to extend into the inner cavity (13), a connecting rod (2417) is welded on a hinge shaft of the swinging block (7) and the material roller (5), a second magnet (25) is bonded on the other end of the connecting rod (2417), the second magnet (25) is scratched from the outer side of the sleeve (20) during swinging, the pressure spring (23) is compressed by the first magnet (21), a limit plate (26) is arranged on the balancing block (18), and the limit plate (8) is not interfered with the baffle plate (22) in a retraction mode when the swinging.
  8. 8. The vertical mill feeding anti-blocking pre-screening device according to claim 5 is characterized in that scraping plates (27) are fixed on the side walls of the inner wall of the swinging block (7) attached to the shell (1) through bolts.

Description

Vertical mill feeding anti-blocking pre-screening device Technical Field The invention belongs to the technical field of feeding anti-blocking, and particularly relates to a vertical mill feeding anti-blocking pre-screening device. Background In the grinding processing field, the vertical mill has the obvious advantages in wet areas or rainy season production by virtue of the integrated advantages of grinding and drying integration of the vertical mill, compared with other grinding machines, the vertical mill can directly process materials with higher moisture content; However, due to the high humidity of the materials, even if the front end of the materials is screened, the materials can be bonded into large-particle materials again in the subsequent conveying process, and the large-particle materials can still be blocked when the large-particle materials directly enter the air locking valve; secondly, the high-humidity material is easy to adhere to the blades of the air locking valve and the inner wall of the valve body when passing through the air locking valve, and is hardened and hardened under the action of hot air, so that clamping stagnation and abrasion occur between the blades and the hardened material, and finally the air locking effect is invalid; Therefore, a pre-screening device capable of pre-treating viscous caking materials in feed and avoiding blocking of a locking air valve is developed, and has important practical significance and application value for guaranteeing continuous and stable operation of a vertical mill, improving production efficiency and reducing production cost. Disclosure of Invention The invention aims to provide a vertical mill feeding anti-blocking pre-screening device for solving the problem that the feeding end of a vertical mill is easy to block due to high feeding humidity. The technical scheme includes that the filter plate type rotary feeding device comprises a shell, a feeding hole and a discharging hole are formed in the shell, a filter plate is arranged in the feeding hole, a material roller is arranged between the feeding hole and the discharging hole, the material roller can rotate in the shell, a plurality of material cavities are formed in the circumference of the material roller, a swinging block is hinged to the rear side of the material roller in the rotation direction of the material roller in each material cavity, a torsion spring is arranged between the swinging block and the material roller, the swinging block always has a trend of being tightly attached to the shell due to the torsion spring, a swinging hammer is arranged in the material roller, and the swinging hammer can strike the material roller when the swinging block is contacted with or separated from the shell each time. In the above or some embodiments, the middle part of the shell is columnar, the feed inlet and the discharge outlet are both positioned on the outer circular surface of the columnar part and are respectively positioned at the upper side and the lower side, the material roller and the columnar part are coaxially arranged, a gap is reserved between the outer wall of the material roller and the inner wall of the shell, a rotating shaft is coaxially arranged on the material roller, one end of the rotating shaft extends out of the shell and is provided with a belt wheel, and when the shell is used, the material roller is connected with external power through the belt wheel and further rotates in the shell. In the above or some embodiments, the material roller comprises two coaxially arranged cylinders, a round tube is fixed between the two cylinders, six baffles radially coincident with the round tube are uniformly distributed on the circumference of the outer wall of the round tube, arc plates are arranged at the outer ends of the two adjacent baffles, the areas among the arc plates, the baffles and the round tube are inner cavities, the areas among the arc plates, the baffles and the round tube are material cavities, the inner cavities and the material cavities are three and are arranged at intervals, a sealing ring is arranged at one side of the cylinder close to the round tube, the structure between the two cylinders is an integral pouring structure during production, after the two cylinders are fixed by bolts, the inner cavities are completely closed, the material cavities become three fan-shaped grooves of the outer wall of the material roller, and when the material cavities rotate, materials falling into the material inlets can be transported to the material outlets, and meanwhile the sealing ring can be prevented from entering between the cylinders and the shell. In the above or some embodiments, when the material roller rotates clockwise, the material inlet is positioned at the left side of the vertical surface passing through the axis of the material roller, and the central angles corresponding to the two arc-shaped inner walls between the material inlet and the materi