Search

CN-121972262-A - Prevent piling up conveying equipment for coal of water conservancy diversion

CN121972262ACN 121972262 ACN121972262 ACN 121972262ACN-121972262-A

Abstract

The invention discloses a conveying device for coal for preventing accumulation and flow guiding, which relates to the technical field of conveying devices and comprises a conveying unit and a pre-crushing unit, wherein the pre-crushing unit comprises an inner crushing cylinder in the shape of a step cylinder, the diameter of the step cylinder is sequentially increased from bottom to top, a plurality of rolling components are uniformly distributed on each layer of cylinder in an annular mode, the number of the rolling components is sequentially decreased from top to bottom, the rolling components on each layer of cylinder are linked through a first transmission belt, and crushing rollers in the rolling components are in sliding connection with the inner crushing cylinder and are provided with reset springs. The invention also provides a disturbance mechanism which consists of a stirring rod and a pestle rod, wherein the pestle rod can rotate and axially slide under the drive of the curved groove sleeve. According to the invention, through multistage progressive crushing and composite disturbance diversion, uniform crushing and smooth conveying of coal are realized, material accumulation is effectively prevented, self-adaptive adjustment capability is provided, and conveying efficiency and equipment reliability are remarkably improved.

Inventors

  • XU YUPENG
  • YU HAOTIAN
  • ZHANG JIANNAN
  • ZHANG WEI
  • ZHANG QINGUO

Assignees

  • 江苏山鑫重工有限公司

Dates

Publication Date
20260505
Application Date
20260408

Claims (9)

  1. 1. The coal conveying equipment capable of preventing accumulation and diversion is characterized by comprising a conveying unit (1) and a pre-crushing unit (2), wherein the pre-crushing unit (2) comprises a crushing mechanism, the crushing mechanism comprises an inner crushing cylinder (4), a hopper (6) and a plurality of rolling components, the inner crushing cylinder (4) is arranged above the conveying unit (1) through an equipment bracket (3), and the hopper (6) is arranged at the top of the inner crushing cylinder (4); the inner crushing cylinder (4) is in a step cylinder shape, the step cylinder diameter of the inner crushing cylinder (4) is sequentially increased from bottom to top, a plurality of rolling components are uniformly distributed on each layer of step cylinder in an annular mode, and the number of the rolling components on each layer of cylinder is sequentially decreased from top to bottom; The inner crushing cylinder (4) is provided with a plurality of tooth petals on the inner wall of the cylinder, the inner crushing cylinder (4) is provided with a plurality of tensioning guides (18) on the outer wall of the cylinder, the tooth petals and the tensioning guides (18) are arranged between two adjacent rolling components, a plurality of rolling components on each layer of cylinder are connected with the same first transmission belt (11), and a plurality of tensioning guides (18) on the outer wall of each layer of cylinder are used for tensioning the first transmission belt (11).
  2. 2. The coal conveying equipment for preventing accumulation and diversion according to claim 1, wherein each rolling assembly further comprises a sliding carrier (20) and a crushing roller (21), the sliding carriers (20) are in sliding connection with the inner crushing cylinder (4), a reset spring is arranged between each sliding carrier (20) and the inner crushing cylinder (4), each sliding carrier (20) is 匚 -shaped, the inside of each sliding carrier (20) is hollow, the crushing roller (21) is in rotary connection with the sliding carrier (20) through a mandrel, and the crushing roller (21) is located inside the inner crushing cylinder (4).
  3. 3. The anti-accumulation and diversion coal conveying equipment according to claim 2, wherein a driven pulley (24) is further connected to a mandrel of the crushing roller (21), the driven pulley (24) is located inside the sliding carrier (20), the first driving belt (11) is connected with the driven pulley (24), a pair of guide wheels (23) are arranged on one side, away from the crushing roller (21), of the sliding carrier (20), guide columns (25) are arranged inside the sliding carrier (20), and the pair of guide wheels (23) and the guide columns (25) conduct reversing guide on the first driving belt (11).
  4. 4. A stacking-preventing and guiding coal conveying device according to claim 3 is characterized in that a plurality of driving elements are further arranged on the outer side of the inner crushing cylinder (4), and each driving element drives a first driving belt (11) to move respectively.
  5. 5. The anti-accumulation and diversion coal conveying equipment is characterized in that a rear roller (22) is arranged on one side, far away from a crushing roller (21), of the sliding carrier (20), an outer rotary drum (5) is rotatably arranged on the equipment support (3), the outer rotary drum (5) is sleeved on the outer side of the inner crushing drum (4), inner convex rings (17) are arranged on inner rings of the outer rotary drum (5) corresponding to step cylinders of each layer, semicircular bulges are arranged on the inner rings of each inner convex ring (17), and the semicircular bulges are in contact with the rear roller (22).
  6. 6. The anti-accumulation and diversion coal conveying equipment according to claim 5 is characterized in that a first motor (12) is installed on the equipment support (3), a driving gear (13) is installed on a motor shaft of the first motor (12), tooth grooves are formed in the outer wall of the outer rotary drum (5), and the driving gear (13) is meshed with the tooth grooves.
  7. 7. The coal conveying equipment for preventing accumulation and diversion according to claim 6, wherein the pre-crushing unit (2) further comprises a disturbance mechanism, the disturbance mechanism comprises a hollow three-support beam (7), the hollow three-support beam (7) is installed in the hopper (6), a shaft sleeve belt wheel (9) is installed in the center of the hollow three-support beam (7) in a rotating mode, a spline shaft (10) is installed in the center of the shaft sleeve belt wheel (9) in an axially sliding mode, a stirring rod (16) is connected to the upper end of the spline shaft (10), a pestle rod (15) is connected to the lower end of the spline shaft (10), the stirring rod (16) is located in the hopper (6), and the pestle rod (15) is located in the inner crushing cylinder (4).
  8. 8. The anti-accumulation and diversion coal conveying equipment according to claim 7 is characterized in that a driving belt wheel (14) is further coaxially arranged on a motor shaft of the first motor (12), a second driving belt (19) is connected between the driving belt wheel (14) and the shaft sleeve belt wheel (9), and the second driving belt (19) is positioned in the hollow three-support beam (7).
  9. 9. The coal conveying equipment capable of preventing accumulation and diversion according to claim 7, wherein a pin is arranged at the bottom of the pestle rod (15), a curved groove sleeve (8) is arranged at the bottom of the inner crushing cylinder (4), the bottom end of the pestle rod (15) is in sliding connection with the curved groove sleeve (8), a continuous closed-loop curved groove is formed in the inner ring of the curved groove sleeve (8), and the pin is arranged in the curved groove in a sliding mode.

Description

Prevent piling up conveying equipment for coal of water conservancy diversion Technical Field The invention relates to the technical field of conveying equipment, in particular to accumulation-preventing and flow-guiding conveying equipment for coal. Background The coal conveying equipment is essential equipment in the coal mining, production and transportation processes, and is widely applied to the scenes of mine lifting, coal preparation plant feeding, port transportation and the like. Conventional coal conveying equipment generally adopts a structural form of a belt conveyor matched with a simple crushing device so as to realize continuous conveying and primary treatment of coal. In actual working conditions, due to uneven coal block degree, partial large-volume coal blocks roll off from a conveying belt easily in the conveying process and are accumulated at the bottom of equipment, so that the conveying efficiency is affected, and equipment blockage and even shutdown faults can be caused. Therefore, the effective pretreatment of the massive coal is a key for improving the reliability of the coal conveying system in the conveying link. In the prior art with publication number CN108855543a, an attempt to integrate a crushing function into a conveying device has been made, in which a crushing device adopts a mode of combining a jaw crushing mechanism and a crushing wheel, primary crushing of large-sized coal is achieved by reciprocating extrusion of a movable jaw and a fixed jaw, and the large-sized coal falls into a conveying belt after secondary crushing by the crushing wheel. Although the structure realizes the integration of crushing and conveying to a certain extent, obvious defects still exist; The jaw crushing relies on reciprocating vibration extrusion, the phenomenon of uneven block distribution is easy to generate in the crushing process, consistency of discharge granularity is difficult to ensure, the follow-up process still needs to rely on a screening mechanism for grading treatment, the complexity of a system is increased, the equipment lacks dynamic adjustment capability for the crushing process, and when difficult-to-crush materials such as ore slag are mixed, crushing components are easy to damage due to overload, and the equipment adaptability is poor. Aiming at the problems, the field needs to develop a pre-crushing device which can realize efficient and uniform crushing in the coal conveying process and has anti-blocking and self-adaptive adjusting capabilities so as to improve the overall operation efficiency and stability of coal conveying equipment. Disclosure of Invention The invention aims to provide a coal conveying device capable of preventing accumulation and diversion, and aims to solve the problems in the prior art. The invention provides a conveying device for coal for preventing accumulation and diversion, which comprises a conveying unit and a pre-crushing unit, wherein the pre-crushing unit comprises a crushing mechanism, the crushing mechanism comprises an inner crushing cylinder, a hopper and a plurality of rolling components, the inner crushing cylinder is arranged above the conveying unit through a device bracket, and the hopper is arranged at the top of the inner crushing cylinder; The inner crushing cylinders are in a step column shape, the step cylinder diameters of the inner crushing cylinders are sequentially increased from bottom to top, a plurality of rolling components are uniformly distributed on each step column in an annular mode, and the number of the rolling components on each layer of column is sequentially decreased from top to bottom; The inner crushing cylinder is characterized in that a plurality of tooth petals are arranged on the inner wall of each layer of column casing, a plurality of tensioning guides are arranged on the outer wall of each layer of column casing, each tooth petal and each tensioning guide are arranged between two adjacent rolling assemblies, a plurality of rolling assemblies on each layer of column casing are connected with a first driving belt, the tensioning guides on the outer wall of each layer of column casing are used for tensioning the first driving belt, the inner crushing cylinder is provided with three layers of column casings, the column casing on the topmost layer is provided with five rolling assemblies, the column casing on the bottommost layer is provided with three rolling assemblies, the crushing rollers on the rolling assemblies on each layer from top to bottom are closer, the gap between each crushing roller and each tooth petal is smaller, when coal is thrown down from a hopper, coal is crushed into coal blocks with relatively consistent sizes through the crushing pretreatment of the three layers of rolling assemblies in the inner crushing cylinder, and the coal blocks are conveyed by a conveying unit. Further, every grind the commentaries on classics subassembly still includes slip carrier and broken mill, s