Underground coal mine coal conveying system
By adding auxiliary coal bunkers and guide coal scrapers to the underground coal transportation system of coal mines, the problem of main coal bunker failure affecting transportation was solved, and the continuity of coal transportation and system reliability were achieved.
Patent Information
- Application Number
- CN202422747196.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-12
AI Technical Summary
When the main coal bunker in the existing coal transportation system in the coal mine fails, it affects the coal mining and transportation tasks, takes a long time to repair, and leads to transportation interruption.
An auxiliary coal bunker is added to the coal transportation system, and the angle between the inclined support beam and the horizontal support beam of the roller frame is gradually increased. Combined with the guide scraper, the coal is guided into the auxiliary coal bunker to avoid affecting transportation when the main coal bunker fails.
When the main coal bunker fails, coal can continue to be transported through the auxiliary coal bunker, ensuring the continuity of coal mining and transportation, reducing downtime for maintenance, and improving system reliability.
Smart Images
Figure CN223421899U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an underground coal transportation system in a coal mine. Background Art
[0002] The coal conveying system of the coal mine underground in the prior art includes a belt coal conveyor and a main coal bunker. The belt coal conveyor includes a frame, belt rollers installed between the left and right side beams of the frame at intervals along the length direction of the frame, an unloading roller located at the front end of the frame, and a coal conveying belt wrapped around the belt rollers and the outside of the unloading roller. The main coal bunker is located in the front and lower part of the unloading roller in the belt coal conveyor. The belt rollers have a generally U-shaped roller frame, which includes a horizontal joist at the bottom and an inclined joist connected to both ends of the horizontal joist and arranged in an outwardly inclined manner. The angle between the inclined joist and the horizontal joist is β, and rollers are rotatably mounted on the horizontal joist and the inclined joists on both sides.
[0003] When the coal conveying system is in operation, the mined coal is transported by the conveyor belt and then unloaded into the main coal bunker at the front and bottom via the unloading roller at the front. The conveyor belt is supported by belt rollers and forms a roughly U-shaped belt during the conveying process, effectively preventing coal from scattering outside the belt during transportation.
[0004] However, long-term operation of the underground coal handling system can lead to malfunctions in the main coal bunker. For example, a large amount of coal slime adheres to the inner wall of the main coal bunker shaft, seriously affecting the coal's fall. Repairing the main coal bunker takes a considerable amount of time, and in this case, the underground coal handling system must be shut down, which seriously affects the coal mining and transportation tasks. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide an underground coal transportation system for a coal mine which will not affect the coal mining and transportation tasks even if a main coal bunker fails.
[0006] The utility model discloses a coal mine underground coal conveying system, including belt coal conveyor and main coal bunker, the belt coal conveyor includes frame, the spacing of the belt roller between the left and right side beams of frame length direction interval installation in frame, the unloading cylinder of the front end of frame and the coal conveying belt of surrounding in the outside of belt roller and unloading cylinder, the main coal bunker of the unloading cylinder of belt coal conveyor in the lower side of front, the belt roller has the roller frame of generally U shape, and the roller frame includes the horizontal roof beam of bottom and the inclined roof beam of the outward side of the inclined mode setting of connecting in the both ends of horizontal roof beam, and the angle between inclined roof beam and horizontal roof beam is beta, and horizontal roof beam and the inclined roof beam of both sides all can rotatably install the roller, still include the sub coal bunker of setting in the left lower side of belt coal conveyor, and the sub coal bunker is located the rear side of unloading cylinder, and the angle beta between the inclined roof beam of the roller frame of belt roller and horizontal roof beam gradually increases near the sub coal bunker, and the angle beta increases to 180 DEG, and correspondingly, the left and right side beams of frame are fixed with left and right side coal baffle respectively near the sub coal bunker, and the front end of right side coal baffle and left side beam are connected with the guide coal scraping plate, and the end of guide coal scraping plate and the front end of left side coal baffle form the coal outlet, and the coal on coal conveying belt can be scraped by the coal outlet and fall into the sub coal bunker of guide coal scraping plate.
[0007] The coal mine underground coal conveying system with the above structure can use the sub coal bunker when the main coal bunker is in failure and needs to be repaired. The left and right side coal baffles are fixed on the left and right side beams of the frame near the sub coal bunker, and the front end of the right side coal baffle and the left side beam are connected with the guide coal scraping plate, and the end of the guide coal scraping plate and the front end of the left side coal baffle form the coal outlet, so the coal on the coal conveying belt can be scraped by the guide coal scraping plate and fall into the sub coal bunker through the coal outlet. The angle beta between the inclined roof beam and the horizontal roof beam of the roller frame of the belt roller gradually increases near the sub coal bunker, and the angle beta increases to 180 DEG, so the coal conveying belt near the guide coal scraping plate is in a horizontal state, and the coal can be conveniently scraped by the guide coal scraping plate and fall into the sub coal bunker. BRIEF DESCRIPTION OF DRAWINGS
[0008] The utility model will be further and specifically explained in connection with the drawings below.
[0009] Figure 1 It is the overhead structure schematic diagram of the utility model discloses a coal mine underground coal conveying system.
[0010] Figure 2 It is the A view of Figure 1 .
[0011] Figure 3 It is Figure 2 .
[0012] Figure 4 yes Figure 2 B-direction view.
[0013] Figure 5 This is a schematic diagram of the main structure of the belt idler in the utility model.
[0014] Figure 6 yes Figure 5 Schematic diagram of the structure of the roller frame after the rollers are removed.
[0015] Figure 7 yes Figure 2 Schematic diagram of the main structure of the belt roller at I.
[0016] Figure 8 yes Figure 7 Schematic diagram of the structure of the roller frame after the rollers are removed.
[0017] Figure 9 yes Figure 2 Schematic diagram of the main structure of the belt roller at II in the middle.
[0018] Figure 10 yes Figure 9 Schematic diagram of the structure of the roller frame after the rollers are removed.
[0019] Figure 11 yes Figure 2 Schematic diagram of the main structure of the belt roller at III in the middle.
[0020] Figure 12 yes Figure 11 Schematic diagram of the structure of the roller frame after the rollers are removed. DETAILED DESCRIPTION
[0021] See also Figure 1 - Figure 6 The utility model discloses an underground coal conveying system for a coal mine, comprising a belt coal conveyor 10 and a main coal bunker 20. The belt coal conveyor comprises a frame 11, belt rollers 12 installed between the left and right side beams 111 and 112 of the frame at intervals along the length direction of the frame, an unloading roller 13 located at the front end of the frame, and a coal conveying belt 14 wrapped around the outside of the belt rollers and the unloading rollers. The main coal bunker is located in the front and lower part of the unloading roller in the belt coal conveyor. The belt rollers 12 have a substantially U-shaped roller frame 121, which comprises a horizontal support beam 122 at the bottom and an inclined support beam 123 connected to both ends of the horizontal support beam and arranged outwardly in an inclined manner. The angle between the inclined support beam and the horizontal support beam is β. Rollers 124 are rotatably installed on the horizontal support beam and the inclined support beams on both sides. It also includes an auxiliary coal bunker 30 opened at the lower left side of the belt coal conveyor, and the auxiliary coal bunker is located at the rear side of the unloading roller 13. See also Figure 7 - Figure 12The angle β between the inclined support beam and the horizontal support beam of the belt support roller near the auxiliary coal bunker 30 increases gradually until the angle β increases to 180°. Figure 1 - Figure 6 Correspondingly, left and right side coal blocking plates 113 and 114 are respectively fixed on the left and right side beams 111 and 112 of the frame near the auxiliary coal bunker 30. A guide coal scraper 115 is connected between the front end of the right coal blocking plate and the left side beam 111. A coal outlet 116 is formed between the end of the guide coal scraper plate and the front end of the left coal blocking plate 113. The guide coal scraper 115 can scrape the coal on the coal conveyor belt 14 into the auxiliary coal bunker 30 through the coal outlet 116.
[0022] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Any modification or equivalent replacement of the present invention to achieve the same technical effect is within the scope of protection of the present invention.
Claims
1. A coal conveying system for an underground coal mine, comprising a belt coal conveyor (10) and a main coal bunker (20), wherein the belt coal conveyor comprises a frame (11), belt rollers (12) installed between left and right side beams (111, 112) of the frame at intervals along the length direction of the frame, an unloading roller (13) located at the front end of the frame, and a coal conveying belt (14) wrapped around the belt rollers and the outside of the unloading rollers, wherein the main coal bunker is located in the front and lower part of the unloading roller in the belt coal conveyor, wherein the belt rollers (12) have a substantially U-shaped roller frame (121), wherein the roller frame comprises a horizontal support beam (122) at the bottom and an inclined support beam (123) connected to both ends of the horizontal support beam and arranged in an outwardly inclined manner, wherein the angle between the inclined support beam and the horizontal support beam is β, and rollers (124) are rotatably installed on the horizontal support beam and the inclined support beams on both sides, wherein the belt rollers (124) are rotatably installed on the horizontal support beam and the inclined support beams on both sides, and wherein the belt rollers (124) are rotatably installed on the horizontal support beam and the inclined support beams on both sides, and wherein the belt rollers (121 ... The invention also includes an auxiliary coal bunker (30) provided at the lower left side of the belt coal conveyor, and the auxiliary coal bunker is located at the rear side of the unloading roller (13); the angle β between the oblique support beam and the horizontal support beam of the roller frame in the belt roller near the auxiliary coal bunker (30) increases gradually, and the angle β increases until it increases to 180 degrees. Correspondingly, left and right side beams (111, 112) of the frame near the auxiliary coal bunker (30) are respectively fixed with left and right side coal retaining plates (113, 114); a guide coal scraper (115) is connected between the front end of the right side coal retaining plate and the left side beam (111); a coal outlet (116) is formed between the end of the guide coal scraper and the front end of the left side coal retaining plate (113); the guide coal scraper (115) can scrape coal on the coal conveying belt (14) from the coal outlet (116) into the auxiliary coal bunker (30).