CN212309709U

CN212309709U - Dynamic coal mill powder selecting machine

Info

Publication number: CN212309709U
Application number: CN202020512713.7U
Authority: CN
Inventors: 胡友超
Original assignee: Jiangsu Haixin Environmental Engineering Co ltd
Current assignee: Jiangsu Haixin Environmental Engineering Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-01-08
Anticipated expiration: 2030-04-09

Abstract

The utility model belongs to the technical field of powder selecting machine, in particular to a coal mill dynamic powder selecting machine, aiming at the problem that when the existing variable frequency coal mill dynamic powder selecting machine is used, the coarse material discharged from a bent pipe is not convenient to be milled, and the coarse material is processed by a special milling device, which is more troublesome, the utility model provides a proposal that the powder selecting machine comprises a powder selecting machine barrel, a central rotor is arranged in the powder selecting machine barrel, the bent pipe is arranged on the powder selecting machine barrel, the central rotor is connected with a motor, a fixed plate is fixedly arranged at the outer side of the powder selecting machine barrel, a shell is fixedly arranged at the bottom of the fixed plate, one end of the bent pipe is arranged in the shell, a discharge port is arranged at the bottom of the shell, two rotating shafts are rotatably arranged at one side of the shell, a grinding roller arranged in the shell is fixedly arranged at one end of the two rotating shafts, and the two grinding rollers are both arranged below the bent, the processing efficiency is improved, the structure is simple, and the use is convenient.

Description

Dynamic coal mill powder selecting machine

Technical Field

The utility model relates to a selection powder machine technical field especially relates to a coal grinds developments selection powder machine.

Background

The coal mill dynamic powder concentrator is mainly used as a grading device in a coal powder preparation (grinding) system of a cement plant.

Through searching, publication No.: CN205380065U patent document discloses a variable frequency coal mill dynamic powder concentrator, which comprises a powder concentrator barrel, a fine powder collecting device and a driving device arranged above the powder concentrator barrel, a coal powder separating device arranged at the middle end in the powder concentrator barrel, and a coarse material collecting device arranged at the lower end in the powder concentrator barrel, wherein the coal powder separating device comprises a conical rotor cage with a side surface composed of a plurality of stator blades with certain gaps, and a central rotor with a plurality of blades positioned at the center of the conical rotor cage and connected with the conical rotor cage, the driving device comprises a motor and a frequency converter, and the frequency converter is remotely controlled through a wireless signal transmission end.

However, when the variable-frequency dynamic coal mill powder concentrator is used, coarse materials discharged from the bent pipe cannot be conveniently milled, and special milling equipment is needed for processing, so that the problem is troublesome.

Disclosure of Invention

The utility model aims at solving frequency conversion formula coal mill developments selection powder machine when using, be not convenient for carry out the crocus to follow the interior exhaust coarse fodder of return bend, still need dedicated crocus equipment to process, more troublesome shortcoming, and a coal mill developments selection powder machine that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a coal grinds developments selection powder machine, includes the selection powder machine bucket, be equipped with central rotor in the selection powder machine bucket, and be equipped with the return bend on the selection powder machine bucket, be connected with the motor on the central rotor, the fixed plate that is provided with in the outside of selection powder machine bucket, the bottom fixed mounting of fixed plate has the casing, and the one end of return bend is located the casing, and the bottom of casing is equipped with the discharge gate, one side of casing is rotated and is installed two axis of rotation, and the equal fixed mounting in one end of two axis of rotation has the grinding roller that is located the casing, and two grinding rollers all are located the below of return bend, and the equal fixed cover in the outside of two axis of rotation is.

Preferably, the transmission mechanism comprises a transmission rod, a first bevel gear and a second bevel gear, the transmission rod is rotatably mounted on the fixing plate, the first bevel gear is fixedly mounted at the bottom end of the transmission rod, the second bevel gear is fixedly sleeved on the outer side of one of the two rotating shafts, and the first bevel gear is meshed with the second bevel gear.

Preferably, a round hole is formed in the fixing plate, the outer side of the transmission rod is in sliding connection with the inner wall of the round hole, a first bearing is fixedly mounted at the bottom of the fixing plate, and the outer side of the transmission rod is fixedly connected with the inner ring of the first bearing.

Preferably, the outer side of the transmission rod is fixedly sleeved with a second chain wheel, the outer side of the central rotor is fixedly sleeved with a first chain wheel, and the first chain wheel and the second chain wheel are meshed with a same chain.

Preferably, two rotating holes are formed in the shell, second bearings are fixedly mounted in the two rotating holes, and the outer sides of the two rotating shafts are fixedly connected with the inner rings of the two second bearings respectively.

Compared with the prior art, the utility model has the advantages of:

(1) when the scheme is used, the motor drives the central rotor to rotate to select powder, coarse materials are discharged into the shell through the bent pipe, the central rotor can drive the first chain wheel to rotate when rotating, the first chain wheel drives the second chain wheel to rotate through the chain, the second chain wheel can drive the transmission rod to rotate, the transmission rod can drive the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the rotating shaft to rotate, the two gears are meshed, so that the other transmission shaft can rotate in opposite directions when one rotating shaft rotates, the two grinding rollers are driven to rotate through the two rotating shafts, the coarse materials are ground through the two grinding rollers, and powder is discharged from a discharge hole at the bottom of the shell;

(2) the utility model discloses can carry out the crocus to the coarse fodder in the selection powder, improve machining efficiency, simple structure, convenient to use.

Drawings

Fig. 1 is a schematic structural view of a coal mill dynamic powder concentrator provided by the present invention;

fig. 2 is a schematic structural diagram of a part a of a dynamic coal mill separator according to the present invention;

fig. 3 is a schematic side view of the rotation shaft and the gear connection of the dynamic coal mill separator of the present invention.

In the figure: 1 powder selecting machine barrel, 2 central rotors, 3 bent pipes, 4 fixing plates, 5 shells, 6 rotating shafts, 7 grinding rollers, 8 gears, 9 second bevel gears, 10 transmission rods, 11 first bevel gears, 12 second sprockets, 13 first sprockets, 14 chains and 15 motors.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Example one

Referring to fig. 1-3, a coal grinds developments selection powder machine, including selection powder machine bucket 1, be equipped with central rotor 2 in selection powder machine bucket 1, and be equipped with return bend 3 on selection powder machine bucket 1, be connected with motor 15 on the central rotor 2, the outside of selection powder machine bucket 1 is fixed and is provided with fixed plate 4, the bottom fixed mounting of fixed plate 4 has casing 5, the one end of return bend 3 is located casing 5, the bottom of casing 5 is equipped with the discharge gate, one side of casing 5 is rotated and is installed two axis of rotation 6, the equal fixed mounting of one end of two axis of rotation 6 has the grinding roller 7 that is located casing 5, two grinding rollers 7 all are located the below of return bend 3, the equal fixed cover in the outside of two axis of rotation 6 is equipped with the gear 8 that is located the casing 5 outside, two gears 8 mesh mutually.

In this embodiment, the transmission mechanism includes a transmission rod 10, a first bevel gear 11 and a second bevel gear 9, the transmission rod 10 is rotatably mounted on the fixing plate 4, the first bevel gear 11 is fixedly mounted at the bottom end of the transmission rod 10, the second bevel gear 9 is fixedly sleeved on the outer side of one of the two rotating shafts 6, the first bevel gear 11 is engaged with the second bevel gear 9, and the rotation of the first bevel gear 11 drives the second bevel gear 9 to rotate.

In this embodiment, a circular hole is formed in the fixed plate 4, the outer side of the transmission rod 10 is slidably connected with the inner wall of the circular hole, a first bearing is fixedly mounted at the bottom of the fixed plate 4, the outer side of the transmission rod 10 is fixedly connected with the inner ring of the first bearing, and the first bearing enables the transmission rod 10 to rotate.

In this embodiment, the fixed cover in outside of transfer line 10 is equipped with second sprocket 12, and the fixed cover in outside of central rotor 2 is equipped with first sprocket 13, and the meshing has same chain 14 on first sprocket 13 and the second sprocket 12, can drive first sprocket 13 and rotate when central rotor 2 rotates, and first sprocket 13 passes through chain 14 and drives second sprocket 12 and rotate, and second sprocket 12 can drive transfer line 10 and rotate.

In this embodiment, two rotation holes have been seted up on casing 5, and equal fixed mounting has the second bearing in two rotation holes, and the outside of two axis of rotation 6 respectively with the inner circle fixed connection of two second bearings, the second bearing makes axis of rotation 6 can rotate.

Example two

Referring to fig. 1-3, a coal mill dynamic powder concentrator comprises a powder concentrator barrel 1, a central rotor 2 is arranged in the powder concentrator barrel 1, and be equipped with return bend 3 on the selection powder machine bucket 1, be connected with motor 15 on the central rotor 2, the fixed plate 4 that is provided with in the outside of selection powder machine bucket 1, fixed plate 4's bottom has casing 5 through welded fastening installation, the one end of return bend 3 is located casing 5, casing 5's bottom is equipped with the discharge gate, one side of casing 5 is rotated and is installed two axis of rotation 6, the grinding roller 7 that is located casing 5 is all installed through welded fastening to the one end of two axis of rotation 6, two grinding rollers 7 all are located the below of return bend 3, the equal fixed cover in outside of two axis of rotation 6 is equipped with the gear 8 that is located the casing 5 outside, two gear 8 mesh mutually, be equipped with drive mechanism on the fixed plate 4, the concrete structure and the theory of operation of: the patent document of CN205380065U is disclosed in detail, and is not repeated herein for the sake of prior art, and this application document is an improvement thereon.

In this embodiment, the transmission mechanism includes a transmission rod 10, a first bevel gear 11 and a second bevel gear 9, the transmission rod 10 is rotatably mounted on the fixing plate 4, the first bevel gear 11 is fixedly mounted at the bottom end of the transmission rod 10 by welding, the second bevel gear 9 is fixedly sleeved on the outer side of one of the two rotating shafts 6, the first bevel gear 11 is engaged with the second bevel gear 9, and the rotation of the first bevel gear 11 drives the second bevel gear 9 to rotate.

In this embodiment, a circular hole is formed in the fixed plate 4, the outer side of the transmission rod 10 is slidably connected with the inner wall of the circular hole, a first bearing is fixedly installed at the bottom of the fixed plate 4 through welding, the outer side of the transmission rod 10 is fixedly connected with the inner ring of the first bearing, and the first bearing enables the transmission rod 10 to rotate.

In this embodiment, two rotation holes have been seted up on casing 5, all have the second bearing through welded fastening in two rotation holes, the outside of two axis of rotation 6 respectively with the inner circle fixed connection of two second bearings, the second bearing makes axis of rotation 6 can rotate.

In this embodiment, during the use, motor 15 drives central rotor 2 and rotates and select powder, the coarse fodder is discharged to casing 5 by return bend 3, central rotor 2 can drive first sprocket 13 when rotating and rotate, first sprocket 13 drives second sprocket 12 through chain 14 and rotates, second sprocket 12 can drive transfer line 10 and rotate, transfer line 10 rotates and can drive first conical gear 11 and rotate, first conical gear 11 drives second conical gear 9 and rotates, second conical gear 9 drives a axis of rotation 6 and rotates, two gears 8 mesh, so can make another transmission shaft 6 rotate towards opposite direction when a axis of rotation 6 rotates, drive two grinding rollers 7 through two axis of rotation 6 and rotate, carry out the crocus to the coarse fodder through two grinding rollers 7, the powder is discharged by the discharge gate of casing 5 bottom.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. A coal mill dynamic powder concentrator comprises a powder concentrator barrel (1), wherein a central rotor (2) is arranged in the powder concentrator barrel (1), a bent pipe (3) is arranged on the powder concentrator barrel (1), a motor (15) is connected to the central rotor (2), the coal mill dynamic powder concentrator is characterized in that a fixed plate (4) is fixedly arranged on the outer side of the powder concentrator barrel (1), a shell (5) is fixedly arranged at the bottom of the fixed plate (4), one end of the bent pipe (3) is located in the shell (5), a discharge hole is formed in the bottom of the shell (5), two rotating shafts (6) are rotatably arranged on one side of the shell (5), a grinding roller (7) located in the shell (5) is fixedly arranged at one end of each rotating shaft (6), the two grinding rollers (7) are both located below the bent pipe (3), a gear (8) located on the outer side of the shell (5) is fixedly sleeved on the outer side of each rotating shaft (, the two gears (8) are meshed with each other, and a transmission mechanism is arranged on the fixing plate (4).

2. The coal mill dynamic powder concentrator as claimed in claim 1, wherein the transmission mechanism comprises a transmission rod (10), a first bevel gear (11) and a second bevel gear (9), the transmission rod (10) is rotatably mounted on the fixed plate (4), the first bevel gear (11) is fixedly mounted at the bottom end of the transmission rod (10), the second bevel gear (9) is fixedly sleeved outside one (6) of the two rotating shafts (6), and the first bevel gear (11) is meshed with the second bevel gear (9).

3. The coal mill dynamic powder concentrator as claimed in claim 1, wherein the fixing plate (4) is provided with a circular hole, the outer side of the transmission rod (10) is slidably connected with the inner wall of the circular hole, the bottom of the fixing plate (4) is fixedly provided with a first bearing, and the outer side of the transmission rod (10) is fixedly connected with the inner ring of the first bearing.

4. The coal mill dynamic powder concentrator as claimed in claim 2, characterized in that the outside of the transmission rod (10) is fixedly sleeved with a second chain wheel (12), the outside of the central rotor (2) is fixedly sleeved with a first chain wheel (13), and the first chain wheel (13) and the second chain wheel (12) are engaged with the same chain (14).

5. The coal mill dynamic powder concentrator as claimed in claim 1, wherein the housing (5) is provided with two rotation holes, a second bearing is fixedly mounted in each of the two rotation holes, and the outer sides of the two rotation shafts (6) are respectively and fixedly connected with the inner rings of the two second bearings.