Deslagging device of coal mill

Abstract

The utility model relates to the technical field of coal mills, and discloses a slag discharge device of a coal mill, which comprises a discharge barrel, a feed port is arranged at the top of the discharge barrel, two discharge ports are arranged at the bottom of the discharge barrel, and a guide mechanism is arranged in the discharge barrel. The two discharging ports are formed in the bottom of the discharging barrel, waste residue discharging has multiple choices due to the two discharging ports, meanwhile, the guiding mechanism is additionally arranged in the discharging barrel and can seal any discharging port, when a collecting box of one discharging port is full, the discharging port on the side of the discharging port can be sealed through the guiding mechanism, and therefore waste residues can be discharged conveniently. The waste residue is discharged from the other discharge port, so that the downtime for cleaning the collecting box is saved, the residue discharge efficiency is improved, and meanwhile, the cloth bag cylinder is arranged on the discharge port, so that the flying dust amount during residue discharge of the discharge port can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mills, in particular to a slag discharge device for a coal mill. Background Art

[0002] A coal mill is a machine that breaks up coal into powder and is a crucial auxiliary equipment for pulverized coal furnaces. The coal grinding process primarily involves crushing, pulverizing, and grinding. Crushing consumes the least energy, while grinding consumes the most. Various coal mills utilize two or all three of these methods during the pulverization process, but the primary method depends on the type of mill.

[0003] Publication No. CN217910710U discloses a coal mill slag discharge device. This device, driven by a drive assembly, rotates multiple agitating paddles within the discharge mechanism, breaking up the slag and preventing it from forming piles that make discharge difficult. However, there is only one discharge port. When large amounts of slag are discharged, the waste slag collection box must be cleaned. This requires the coal mill to shut down, halting slag discharge and delaying grinding time, resulting in low slag discharge efficiency.

[0004] Therefore, we propose a coal mill slag discharge device to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art in the above background technology, the purpose of the present invention is to provide a coal mill slag discharge device to solve the problems raised in the above background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A coal mill slag discharge device comprises a discharge barrel, wherein the top of the discharge barrel is provided with an inlet, the bottom of the discharge barrel is provided with two discharge ports, and a guide mechanism is provided inside the discharge barrel;

[0010] The guide mechanism includes a rotating rod rotatably mounted on the bottom of the feed port, a material guide plate is fixed on the rotating rod, and the material guide plate is in contact with the side wall of the discharge port.

[0011] Furthermore, one end of the rotating rod extends to the outside of the discharge barrel and is provided with a rotating handle.

[0012] Furthermore, a limit stop is provided on the top of the inner wall of the discharge port.

[0013] Furthermore, a crushing mechanism is provided in the discharge barrel, and a driving mechanism is provided on the outer wall of the discharge barrel;

[0014] The crushing mechanism includes two rollers rotatably mounted on the inner wall of the discharge cylinder, and a plurality of crushing teeth arranged in a staggered manner are arranged on the two rollers;

[0015] The driving mechanism includes a driven gear fixed to one end of the two rollers and a driving motor fixed to the outer wall of the discharge barrel. A driving gear meshing with one of the driven gears is fixed on the rotating shaft of the driving motor, and the driving gear meshes with the other driven gear through a transmission gear.

[0016] Preferably, a closing mechanism is provided on the guide mechanism, and the closing mechanism includes an inner rod rotatably installed inside the rotating rod, a rotating groove is opened on the side wall of the rotating rod, a closing plate is slidably installed in the rotating groove, and the bottom of the closing plate passes through the rotating groove and is fixed to the side wall of the inner rod.

[0017] Furthermore, the size of the closing plate is the same as that of the guide plate.

[0018] Furthermore, one end of the inner rod passes through the turning handle and is fixed with a screw ear.

[0019] Preferably, cloth bag tubes are provided outside the two discharge ports.

[0020] (3) Beneficial effects

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] By arranging two discharge ports at the bottom of the discharge barrel, the two discharge ports provide multiple options for discharging waste slag. At the same time, a guide mechanism is added in the discharge barrel, and the guide mechanism can close any discharge port. When the collection box of one of the discharge ports is full, its side discharge port can be closed by the guide mechanism, so that the waste slag is discharged from the other discharge port, so as to save the downtime when cleaning the collection box and improve the slag discharge efficiency. At the same time, the bag tube set on the discharge port can greatly reduce the amount of dust flying when discharging slag from the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the external structure of the coal mill slag discharge device of the utility model;

[0024] Figure 2 This is a partial cross-sectional structural diagram of the utility model coal mill slag discharge device;

[0025] Figure 3 This is a schematic diagram of the internal structure of the slag discharge device of the coal mill of the utility model;

[0026] Figure 4 This is a schematic diagram of the crushing mechanism of the coal mill slag discharge device of the utility model;

[0027] Figure 5 This is a schematic diagram of the closing mechanism of the coal mill slag discharge device of the utility model.

[0028] In the figure: discharge barrel 1, feed port 11, discharge port 12, crushing mechanism 2, roller 21, crushing teeth 22, driving mechanism 3, driven gear 31, driving gear 32, driving motor 33, transmission gear 34, guide mechanism 4, rotating rod 41, guide plate 42, rotating handle 43, limit block 44, closing mechanism 5, inner rod 51, rotating groove 52, closing plate 53, screw ear 54, cloth bag barrel 6. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-5 As shown, the utility model provides a coal mill slag discharge device, comprising a discharge barrel 1, a feed port 11 being provided at the top of the discharge barrel 1, two discharge ports 12 being provided at the bottom of the discharge barrel 1, and a guide mechanism 4 being provided inside the discharge barrel 1;

[0031] The guiding mechanism 4 includes a rotating rod 41 rotatably mounted at the bottom of the feed port 11, a guide plate 42 is fixed on the rotating rod 41, the guide plate 42 is in contact with the side wall of the discharge port 12, one end of the rotating rod 41 extends to the outside of the discharge barrel 1 and is provided with a rotating handle 43, and a limit block 44 is provided at the top of the inner wall of the discharge port 12.

[0032] The feed port 11 at the top of the discharge barrel 1 is connected to the slag discharge port of the coal mill. When the coal mill is discharging slag, the waste slag enters the discharge barrel 1 from the feed port 11. The rotating rod 41 and the guide plate 42 are rotated by the rotating handle 43 to make the guide plate 42 close one of the discharge ports 12, so that the waste slag is discharged from the other discharge port 12. When the collection box of the discharge port 12 is full, the rotating handle 43 is rotated to make the guide plate 42 close the discharge port 12 on this side, so that the waste slag is discharged from the discharge port 12 on the other side. Repeating the above steps can achieve uninterrupted slag discharge, saving time.

[0033] As a preferred technical solution of the present invention: a crushing mechanism 2 is provided in the discharge barrel 1, and a driving mechanism 3 is provided on the outer wall of the discharge barrel 1;

[0034] The crushing mechanism 2 includes two rollers 21 rotatably mounted on the inner wall of the discharge cylinder 1, and a plurality of crushing teeth 22 arranged in an interlaced manner are arranged on the two rollers 21;

[0035] The driving mechanism 3 includes a driven gear 31 fixed to one end of the two rollers 21 and a driving motor 33 fixed to the outer wall of the discharge barrel 1. A driving gear 32 engaged with one of the driven gears 31 is fixed on the rotating shaft of the driving motor 33, and the driving gear 32 is engaged with the other driven gear 31 through a transmission gear 34 for transmission.

[0036] The driving motor 33 drives the two rollers 21 to rotate toward each other through the driving gear 32, the transmission gear 34 and the driven gear 31, so that the crushing teeth 22 crush the slag pile to prevent blockage.

[0037] As an optimal technical solution of the present invention: a closing mechanism 5 is provided on the guide mechanism 4, the rotating rod 41 is a hollow structure, the closing mechanism 5 includes an inner rod 51 rotatably installed inside the rotating rod 41, a rotating groove 52 is provided on the side wall of the rotating rod 41, a closing plate 53 is slidably installed in the rotating groove 52, the size of the closing plate 53 is the same as that of the guide plate 42, the bottom of the closing plate 53 passes through the rotating groove 52 and is fixed to the side wall of the inner rod 51, and one end of the inner rod 51 passes through the rotating handle 43 and is fixed with a screw ear 54.

[0038] By rotating the inner rod 51 through the screw ear 54 and driving the closing plate 53 to rotate, the two discharge ports 12 can be closed at the same time to prevent the waste residue from escaping.

[0039] As an optimal technical solution of the present invention: a bag tube 6 is provided outside the discharge port 12. The provision of the bag tube 6 can greatly reduce the amount of dust flying when the discharge port 12 discharges slag.

[0040] For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A coal mill slag discharge device, comprising a discharge barrel (1), characterized in that: The top of the discharge barrel (1) is provided with an inlet (11), the bottom of the discharge barrel (1) is provided with two discharge ports (12), and a guide mechanism (4) is provided inside the discharge barrel (1); The guide mechanism (4) comprises a rotating rod (41) rotatably mounted at the bottom of the material inlet (11), a material guide plate (42) being fixed on the rotating rod (41), and the material guide plate (42) being in contact with the side wall of the material outlet (12).

2. A coal mill slag discharge device according to claim 1, characterized in that: One end of the rotating rod (41) extends to the outside of the discharge barrel (1) and is provided with a rotating handle (43).

3. A coal mill slag discharge device according to claim 2, characterized in that: A limit stopper (44) is provided at the top of the inner side wall of the discharge port (12).

4. A coal mill slag discharge device according to claim 1, characterized in that: A crushing mechanism (2) is arranged inside the discharge barrel (1), and a driving mechanism (3) is arranged on the outer wall of the discharge barrel (1); The crushing mechanism (2) comprises two rollers (21) rotatably mounted on the inner wall of the discharge cylinder (1), and a plurality of crushing teeth (22) arranged in an interlaced manner are arranged on the two rollers (21); The driving mechanism (3) comprises a driven gear (31) fixed to one end of the two rotating rollers (21) and a driving motor (33) fixed to the outer wall of the discharging cylinder (1); a driving gear (32) meshing with one of the driven gears (31) is fixed on the rotating shaft of the driving motor (33); the driving gear (32) meshes with the other driven gear (31) through a transmission gear (34) for transmission.

5. A coal mill slag discharge device according to claim 3, characterized in that: The guide mechanism (4) is provided with a closing mechanism (5), and the closing mechanism (5) comprises an inner rod (51) rotatably mounted inside the rotating rod (41), a rotating groove (52) is provided on the side wall of the rotating rod (41), a closing plate (53) is slidably mounted in the rotating groove (52), and the bottom of the closing plate (53) passes through the rotating groove (52) and is fixed to the side wall of the inner rod (51).

6. A coal mill slag discharge device according to claim 5, characterized in that: The size of the closing plate (53) is the same as that of the guide plate (42).

7. A coal mill slag discharge device according to claim 6, characterized in that: One end of the inner rod (51) passes through the rotating handle (43) and is fixed with a screw ear (54).

8. A coal mill slag discharge device according to claim 1, characterized in that: Cloth bag tubes (6) are arranged outside the two discharge ports (12).

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