CN215141979U

CN215141979U - Online screening plant of defeated coal slurry of pipe comes coal

Info

Publication number: CN215141979U
Application number: CN202121276986.7U
Authority: CN
Inventors: 王鹏斐; 贺利娜; 王晓乐; 焦凤鸣; 赵伟
Original assignee: Shaanxi Shenwei Coal Pipeline Transportation Co ltd
Current assignee: Shaanxi Shenwei Coal Pipeline Transportation Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-14
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a defeated coal slurry of pipe comes coal online screening plant, including the fixed bolster, be provided with the screen cloth on the fixed bolster, still be provided with a plurality of drum assemblies on the fixed bolster side by side, each drum assembly all includes the fixed axle, the fixed axle both ends are all fixed on the fixed bolster, be provided with the interior axle of rotation in the fixed axle, the interior axle both sides outside of rotation is fixed with the eccentric wheel with one heart, the interior axle outside one end of rotation is connected with the vibration auxiliary motor with one heart, the fixed axle outside is provided with the cylinder with one heart, the screen cloth encircles at the cylinder outer wall, fixed bolster both sides tip is fixed with driving gear and driven gear respectively; the driving gear and the driven gear are connected through a chain, and the driving gear is concentrically connected with a main motor; the chain drives the screen to move along with the rotation of the driving gear. An online vibrating screen is arranged between the crusher and the rod mill, so that the particle size of the fed material of the rod mill is ensured to be within a specified range, the quality of coal slurry is ensured, and the screening efficiency can be effectively improved.

Description

Online screening plant of defeated coal slurry of pipe comes coal

Technical Field

The utility model belongs to the technical field of defeated coal slurry of pipe screening equipment, concretely relates to defeated coal slurry of pipe comes online screening plant of coal.

Background

As a novel coal conveying mode, compared with the traditional coal conveying mode, the coal slurry pipeline conveying mode has the advantages of cleanness, high efficiency, energy conservation and the like, and the core for ensuring the safe and stable conveying of the coal slurry is to prepare the qualified pipeline coal slurry and ensure the quality of the coal slurry. The existing pulping technology is that coal is crushed to a certain granularity by a crusher and then enters a rod mill for wet pulping. Because of the fluctuation of the coal quality and the hardness of the coal, the discharge granularity of the crusher is suddenly large and suddenly small and is not completely in a set range, part of large particles enter the rod mill, the feed granularity of the rod mill can directly influence the granularity distribution of the prepared coal slurry, and further influence the stability of the coal slurry.

At present, common online screening devices on the market are mostly independent vibrating screens, the discharge amount of the crusher is large, and if the vibrating screen device is simple to use, not only the occupied area of the equipment is large, but also the working procedures are relatively complex, and the screening efficiency is relatively low. The convenient and efficient coal online screening technology can effectively improve screening efficiency, reduce operation procedures, ensure the quality of coal slurry preparation and ensure the safe transportation of pipelines.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a defeated coal slurry of pipe comes online screening plant of coal has improved coal screening efficiency, has ensured the quality of coal slurry preparation.

The utility model adopts the technical scheme that, a defeated coal slurry of pipe comes coal on-line screening plant, including the fixed bolster, be provided with the screen cloth on the fixed bolster, still be provided with a plurality of drum assemblies side by side on the fixed bolster, each drum assembly all includes the fixed axle, the fixed axle both ends are all fixed on the fixed bolster, be provided with rotatory interior axle in the fixed axle, the rotation of interior axle can be concentric in the fixed axle, the outside concentric eccentric wheel that is fixed with in the rotation of interior axle both sides, the eccentric wheel can be along with the synchronous rotation of rotatory interior axle, the outside one end of rotatory interior axle is connected with the vibration auxiliary motor is concentric, the fixed axle outside is provided with the cylinder with one heart, the cylinder can rotate with one heart outside the fixed axle, the screen cloth encircles at the cylinder outer wall, fixed bolster both sides tip is fixed with driving gear and driven gear respectively, driving gear and driven gear are located the screen cloth both ends respectively; the driving gear and the driven gear are connected through a chain, and the chain is fixed on two sides of the screen; the driving gear is concentrically connected with a main motor; the chain drives the screen to move along with the rotation of the driving gear.

The utility model is also characterized in that,

the screen cloth one side top still is provided with the blanking mouth, and screen cloth opposite side below is provided with retrieves the track, retrieves the track below and is provided with the large granule and retrieves the car.

Elastic baffles are arranged on two sides of the screen.

The vibration auxiliary motor is fixed on the fixed support.

A material conveying belt is arranged under the screen, and the rotation direction of the driving gear is consistent with the movement direction of the material conveying belt.

The utility model has the advantages that,

an online vibrating screen is arranged between the crusher and the rod mill, so that the particle size of the feed material of the rod mill can be ensured to be within a specified range, and the quality of coal slurry is ensured; the screen is arranged at the upper end of the belt, so that the occupied space can be saved, and the operation process is simpler and more convenient; set up to portable screen cloth can make coal evenly relatively fall on the sifter, solve the problem that the breaker load of discharge is big, the screen cloth easily blocks up, long distance sifter has increased the screening time simultaneously, can effectively improve screening efficiency.

Drawings

FIG. 1 is a schematic structural diagram of the on-line screening device for coal slurry conveyed by a pipe.

FIG. 2 is a schematic structural view of a support roller in the on-line screening device for incoming coal of coal slurry transported by a pipe according to the present invention;

FIG. 3 is a schematic structural view of an elastic baffle plate in the online screening device for incoming coal of pipe-transported coal slurry.

In the figure, 1, a blanking port, 2, a screen, 3, a chain, 4, a driving gear, 5, a driven gear, 6, a roller assembly, 7, a main motor, 8, a vibration auxiliary motor, 9, a fixed support, 10, a recovery track, 11, a large particle recovery vehicle, 12, a material conveying belt, 13, an elastic baffle, 14, a roller, 15, a rotating inner shaft, 16, a roller shaft and 17 are rollers.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model relates to a pipe transportation coal slurry comes coal on-line screening plant, as shown in figure 1, including the fixed bolster 9, the fixed bolster 9 is provided with the screen 2, the screen 2 side is also provided with the blanking mouth 1 above, is used for collecting the coal broken in the breaker; a recovery track 10 is arranged below the other side of the screen 2 and used for receiving the coal screened by the screen 2, and a large particle recovery vehicle 11 is arranged below the recovery track 10;

the fixed support 9 is further provided with a plurality of roller assemblies 6 side by side, each roller assembly 6 comprises a fixed shaft 16, two ends of each fixed shaft 16 are fixed on the fixed support 9, a rotating inner shaft 15 is arranged in each fixed shaft 16, the rotating inner shafts 15 can concentrically rotate in the fixed shafts 16, as shown in fig. 2, two ends of each rotating inner shaft 15 horizontally penetrate through the end part of each fixed shaft 16 and penetrate through two sides of the fixed support 9, eccentric wheels 14 are concentrically fixed on the outer parts of two sides of each rotating inner shaft 15, and the eccentric wheels 14 can synchronously rotate along with the rotating inner shafts 15. One end of the outer part of the rotating inner shaft 15 is concentrically connected with the vibration auxiliary motor 8, and the vibration auxiliary motor 8 is fixed on the fixed bracket 9.

The roller 17 is concentrically arranged outside the fixed shaft 16, the roller 17 can concentrically rotate outside the fixed shaft 16, the screen 2 surrounds the outer wall of the roller 17 to form a cylindrical screen ring and wrap the plurality of rollers 17 in the cylindrical screen ring, and the upper inner surface and the lower inner surface of the screen 2 are connected with the outer wall of the roller 17.

The two side ends of the fixed support 9 are respectively fixed with a driving gear 4 and a driven gear 5, and the driving gear 4 and the driven gear 5 are respectively positioned at the two end parts of the screen 2; the driving gear 4 and the driven gear 5 are connected through a chain 3, and the chain 3 is fixed on two sides of the screen 2; the outer edge both sides of screen cloth 2 still are provided with elastic baffle 13, as shown in fig. 3, elastic baffle 13 and the laminating of screen cloth 2, and elastic baffle 13 material is rubber or similar material, sets up to snakelike along screen cloth 2 traffic direction, and elastic baffle 13 can not produce the fracture because of tension when guaranteeing screen cloth 2 to pass through driving gear 4 and driven gear 5. The elastic baffle 13 is mainly used for preventing coal from falling from two sides of the screen 2; the driving gear 4 is concentrically connected with a main motor 7; the chain 3 drives the screen 2 to move along with the rotation of the driving gear 4;

a material conveying belt 12 is arranged under the screen 2, and the rotation direction of the driving gear 4 is consistent with the movement direction of the material conveying belt 12; the screen surface of the screen 2 is made of stainless steel material;

the utility model relates to a defeated coal slurry of pipe comes online screening plant of coal, its concrete theory of operation is:

during operation, the main motor 7 is started, the main motor 7 drives the driving gear 4 to rotate, the chain 3 drives the screen 2 to move along with the rotation of the driving gear 4, so as to drive the driven gear 5 to rotate, so as to realize the circular motion of the screen 2, the roller assembly 6 is fixed on the fixed support and used for supporting and protecting the screen 2, the roller 17 can rotate along with the movement of the screen 2, so as to reduce the abrasion on the screen surface, the vibration auxiliary motor 8 rotates to drive the rotating inner shaft 15 to rotate, so that the eccentric wheels 14 on two sides rotate to generate vibration and drive the roller 17 to generate vibration, so as to realize the small vibration of the screen 2 to prevent coal blockage, and the rotation of the roller 17 is utilized; large granule coal that screen cloth 2 intercepted falls to retrieving track 10 through the screen cloth tail end, falls into large granule through retrieving track 10 and retrieves car 11 in, need regularly carry out recovery processing to the large granule coal in retrieving the car.

Claims

1. The on-line screening device for the coal coming from the coal slurry conveyed by the pipe is characterized by comprising a fixed support (9), wherein a screen (2) is arranged on the fixed support (9), a plurality of roller assemblies (6) are arranged on the fixed support (9) side by side, each roller assembly (6) comprises a fixed shaft (16), two ends of each fixed shaft (16) are fixed on the fixed support (9), a rotating inner shaft (15) is arranged in each fixed shaft (16), each rotating inner shaft (15) can concentrically rotate in each fixed shaft (16), eccentric wheels (14) are concentrically fixed on the outer portions of two sides of each rotating inner shaft (15), each eccentric wheel (14) can synchronously rotate along with each rotating inner shaft (15), one end of the outer portion of each rotating inner shaft (15) is concentrically connected with a vibration auxiliary motor (8), a roller (17) is concentrically arranged on the outer portion of each fixed shaft (16), the roller (17) can concentrically rotate outside the fixed shaft (16), the screen (2) surrounds the outer wall of the roller (17), the two side ends of the fixed support (9) are respectively fixed with a driving gear (4) and a driven gear (5), and the driving gear (4) and the driven gear (5) are respectively positioned at the two end parts of the screen (2); the driving gear (4) and the driven gear (5) are connected through a chain (3), and the chain (3) is fixed on two sides of the screen (2); the driving gear (4) is concentrically connected with a main motor (7); the chain (3) drives the screen (2) to move along with the rotation of the driving gear (4).

2. The on-line screening device for coal coming from coal slurry transported by pipe according to claim 1, characterized in that a blanking port (1) is further arranged above one side of the screen (2), a recovery track (10) is arranged below the other side of the screen (2), and a large particle recovery vehicle (11) is arranged below the recovery track (10).

3. The on-line screening device for the coming coal of the coal slurry transported by the pipe as claimed in claim 1, characterized in that elastic baffles (13) are further arranged on two sides of the screen (2).

4. The in-line screening device for the coal coming from the pipe coal slurry as claimed in claim 1, wherein the vibration-assisted motor (8) is fixed on a fixed bracket (9).

5. The on-line screening device for the coal coming from the coal slurry conveyed by the pipe as claimed in claim 1, characterized in that a material conveying belt (12) is arranged right below the screen (2), and the rotation direction of the driving gear (4) is consistent with the movement direction of the material conveying belt (12).