CN219836567U

CN219836567U - Coal pulverizer with screening function

Info

Publication number: CN219836567U
Application number: CN202320756528.6U
Authority: CN
Inventors: 杨国峰; 张永超; 赵立会; 刘存喜; 慕广斌; 范立华; 吴刚
Original assignee: Tianjin Detong Electric Co ltd
Current assignee: Tianjin Detong Electric Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-10-17
Anticipated expiration: 2033-04-07

Abstract

The utility model discloses a coal pulverizer with a screening function, which comprises a shell, wherein a screening cylinder is rotatably arranged in the shell, a pulverizing roller is eccentrically arranged in the screening cylinder, the pulverizing roller is rotatably connected with the shell, one ends of the pulverizing roller and the screening cylinder are also provided with a transmission mechanism, the transmission mechanism is respectively connected with the screening cylinder and the pulverizing roller, the shell at the other ends of the pulverizing roller and the screening cylinder is also provided with a feed hopper, and the output end of the feed hopper penetrates through the shell and then stretches into the screening cylinder. The driving wheel is utilized to drive the roller and the crushing roller to rotate simultaneously, and the rotating speeds of the roller and the crushing roller are different due to different sizes of gears, so that massive coal can be crushed rapidly by utilizing the rotating speed difference, qualified products after being screened by the roller can be discharged from the discharge port through the roller, and unsatisfactory coal blocks can continuously rotate in the roller and are crushed by the crushing roller until falling through the roller after meeting the requirements, crushing and screening are performed simultaneously, and the working efficiency is improved.

Description

Coal pulverizer with screening function

Technical Field

The utility model belongs to the technical field of coal crushing, and particularly relates to a coal crusher with a screening function.

Background

Coal is one of the indispensable energy sources of production life of human, and the coal needs to be classified according to the size after being mined from the coal mine so as to be convenient for carrying out subsequent different processing and use, wherein the coal needs to be crushed, and the existing crushing equipment directly outputs the crushed coal, so that some coal which is not crushed or cannot reach the required crushing degree can be avoided in the coal crushing process, the crushed coal which cannot reach the required coal is mixed with the crushed finished product after the coal is crushed, the coal which does not reach the required coal is screened out at present, and the unqualified coal is screened out and then sent to a crusher for crushing, so that the process is complicated, the labor intensity of workers is high, and the working progress is influenced by the secondary crushing.

Therefore, a coal pulverizer with screening function is needed to solve the problems.

Disclosure of Invention

The utility model aims to solve the problem of providing a coal pulverizer with a screening function.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a coal pulverizer with screening function, includes the shell rotate in the shell and be provided with screening section of thick bamboo, screening section of thick bamboo is interior eccentric to be provided with crushing roller, crushing roller with the shell rotates to be connected crushing roller with screening section of thick bamboo's one end still is provided with drive mechanism, drive mechanism respectively with screening section of thick bamboo with crushing roller links to each other crushing roller with still be provided with the feeder hopper on the shell of screening section of thick bamboo other end, the output of feeder hopper passes behind the shell stretch into in the screening section of thick bamboo.

Preferably, two supporting wallboards are oppositely arranged in the shell, the screening cylinder is rotatably installed on the two supporting wallboards in a penetrating mode, one end of the screening cylinder is fixedly provided with a screening fluted disc, the other end of the screening cylinder is fixedly provided with a limiting ring, the output end of the feeding hopper penetrates through the limiting ring and then stretches into the screening cylinder, and a plurality of crushing teeth are fixedly arranged on the inner wall of the screening cylinder.

So set up, support screening section of thick bamboo, ensured that screening section of thick bamboo can normally rotate, realize screening function.

Preferably, connecting shafts are respectively arranged at two ends of the crushing roller, the crushing roller is rotationally connected with the shell through the connecting shafts, the ratio of the outer diameter of the crushing roller to the inner diameter of the screening cylinder is 3:5, the axis of the crushing roller is positioned below the axis of the screening cylinder, a plurality of anti-skid grooves are further formed in the outer wall of the crushing roller, and the minimum distance between the outer wall of the crushing roller and the inner wall of the screening cylinder is larger than the height of the crushing teeth.

So set up, realized the support to smashing the roller, ensured smashing the roller and can rotate to can not produce the interference with screening section of thick bamboo, but can realize smashing the coal cinder with screening section of thick bamboo mutually supporting again.

Preferably, the transmission mechanism comprises a crushing gear fixed on the connecting shaft, a screening gear is rotatably arranged on one of the supporting wallboards and meshed with the screening fluted disc, a transmission gear is fixedly arranged on the screening gear, the diameter of the transmission gear is smaller than that of the crushing gear, a driving gear is further arranged between the transmission gear and the crushing gear, and the driving gear is respectively meshed with the transmission gear and the crushing gear.

So set up, ensured the transmission of power, can make screening section of thick bamboo and crushing roller's rotational speed different to increase crushing effect.

Preferably, the bottom of the shell is fixedly provided with supporting legs, the outer wall of the shell where two supporting legs are located is fixedly provided with a bracket, the bracket is fixedly provided with a driving motor, and the output end of the driving motor passes through the side wall of the shell and is fixedly connected with the driving gear.

The setting can support driving motor like this, and the bracket can also provide operation platform for the staff when overhauling simultaneously.

Preferably, a discharge hole is further fixedly arranged at the bottom of the shell, the section of the discharge hole is isosceles trapezoid, and the length of the upper bottom of the trapezoid is larger than that of the lower bottom.

By the arrangement, crushed coal blocks can be folded, and subsequent flow operation is facilitated.

The utility model has the advantages and positive effects that:

according to the utility model, the crushing roller is arranged in the roller of the traditional roller type screening machine, the roller and the crushing roller are driven to rotate by the driving wheel, and the rotating speeds of the roller and the crushing roller are different due to different sizes of gears, so that massive coal can be rapidly crushed by utilizing the rotating speed difference, qualified products after being screened by the roller can be discharged from the discharge port through the roller, and unsatisfactory coal blocks can continuously rotate in the roller and are continuously crushed by the crushing roller until falling through the roller after meeting the requirements, the simultaneous crushing and screening is realized, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is an isometric view of the overall structure of a coal pulverizer with screening function according to the present utility model;

FIG. 2 is a schematic view of the internal structure of a coal pulverizer with screening function according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a coal pulverizer with screening function in accordance with the present utility model;

fig. 4 is a schematic diagram of a connection structure of a transmission mechanism of a coal pulverizer with a screening function according to the present utility model.

The reference numerals are explained as follows:

1. a housing; 2. supporting the wallboard; 3. a sieving cylinder; 4. crushing teeth; 5. a pulverizing roller; 6. an anti-skid groove; 7. a connecting shaft; 8. a drive gear; 9. crushing a gear; 10. screening gears; 11. screening fluted discs; 12. a limiting ring; 13. a feed hopper; 14. a discharge port; 15. a bracket; 16. a driving motor; 17. a transmission gear; 18. and (5) supporting legs.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model is further described below with reference to the accompanying drawings:

example 1: as shown in fig. 1 to 4, a coal pulverizer with screening function includes a housing 1, and is characterized in that: the screening cylinder 3 is rotationally arranged in the shell 1, the crushing roller 5 is eccentrically arranged in the screening cylinder 3 and is rotationally connected with the shell 1, one ends of the crushing roller 5 and the screening cylinder 3 are further provided with a transmission mechanism which is respectively connected with the screening cylinder 3 and the crushing roller 5, the shell 1 at the other ends of the crushing roller 5 and the screening cylinder 3 is further provided with a feed hopper 13, and the output end of the feed hopper 13 penetrates through the shell 1 and then stretches into the screening cylinder 3.

Specifically, be provided with two support wallboard 2 relatively in shell 1, screening section of thick bamboo 3 rotates and runs through and install on two support wallboard 2, so set up and support screening section of thick bamboo 3, the fixed screening fluted disc 11 that is provided with in one end of screening section of thick bamboo 3, guaranteed screening section of thick bamboo 3 can normally rotate, realize screening function, and the fixed stop collar 12 that is provided with of the other end, prevent that the coal cinder from dropping screening section of thick bamboo 3 in screening process, the output of feeder hopper 13 stretches into screening section of thick bamboo 3 after passing stop collar 12, guaranteed like this that the coal cinder can enter into screening section of thick bamboo 3 in, and still fixedly be provided with a plurality of crushing teeth 4 on screening section of thick bamboo 3's inner wall, can mutually support with crushing roller 5 and realize the crushing to big coal cinder.

Specifically, be provided with connecting axle 7 respectively at the both ends of smashing roller 5, and smashing roller 5 and shell 1 through connecting axle 7 rotation connection, so set up and realized the support to smashing roller 5, the external diameter of smashing roller 5 is 3:5 with the internal diameter ratio of screening section of thick bamboo 3, can ensure that there is sufficient space in the screening section of thick bamboo 3 to carry out the coal cinder screening, the axis of smashing roller 5 is located the below of screening section of thick bamboo 3 axis, can ensure like this that smashing roller 5 can smash the coal cinder, avoid because smashing roller 5 mounted position is too high and lead to screening section of thick bamboo 3 to can not carry the coal cinder up, still offered a plurality of anti-skidding grooves 6 on smashing roller 5's outer wall, slip when can preventing smashing, smash efficiency has been ensured, and the minimum distance between smashing roller 5 outer wall and the screening section of thick bamboo 3 inner wall is greater than the height of crushing tooth 4, ensure the size of coal cinder after smashing like this.

Specifically, the drive mechanism includes that fixed strip installs the crushing tooth 4 wheel on connecting axle 7, rotate on one of them support wallboard 2 and be provided with screening gear 10, screening gear 10 meshes with screening fluted disc 11 mutually, still fixedly on screening gear 10 be provided with drive gear 17, the diameter of drive gear 17 is less than the diameter of crushing tooth 4 wheel, and still be provided with driving gear 8 between drive gear 17 and crushing tooth 4 wheel, driving gear 8 meshes with drive gear 17 and crushing tooth 4 wheel respectively, so set up and ensured the transmission of power, can make screening section of thick bamboo 3 and crushing roller 5's rotational speed different, in order to increase crushing effect.

Specifically, the bottom of the shell 1 is also fixedly provided with supporting legs 18, the outer walls of the shell 1 where two supporting legs 18 are located are fixedly provided with brackets 15, the brackets 15 are fixedly provided with driving motors 16, the output ends of the driving motors 16 penetrate through the side walls of the shell 1 and then are fixedly connected with the driving gears 8, so that the driving motors 16 can be supported, and meanwhile, the brackets 15 can provide an operation platform for workers during maintenance.

Specifically, the bottom of shell 1 is still fixed and is provided with discharge gate 14, and the cross-section of discharge gate 14 is isosceles trapezoid, and trapezoidal upper end length is greater than the lower end, so the setting can draw in the coal cinder after smashing in, is convenient for carry out the operation of follow-up journey.

The working procedure of this embodiment is: when the device is used, a worker firstly pours the coal blocks to be crushed into the feed hopper 13, the coal blocks directly slide into the roller along the feed hopper 13, then the worker starts the driving motor 16, the rotating shaft of the driving motor 16 drives the driving gear 8 to rotate, the driving gear 17 and the crushing teeth 4 are simultaneously driven to rotate after the driving gear 8 rotates because the driving gear 17 and the crushing teeth 4 are meshed with the driving gear 8, the diameter of the crushing teeth 4 is larger than that of the driving gear 17, the diameter of the sieving gear 10 connected with the driving gear 17 is far smaller than that of the sieving fluted disc 11, therefore, when the driving gear 8 drives the driving gear 17 and the crushing teeth 4 to rotate, the crushing roller 5 and the sieving barrel 3 rotate, but the rotating speed of the crushing roller 5 is larger than that of the sieving barrel 3, so that when the sieving cylinder 3 rotates, smaller coal pieces fall into the discharge hole 14 through the sieve holes on the sieving cylinder 3 and slide out from the discharge hole 14, while larger coal pieces can fall along the sieving cylinder 3, and because the axis of the crushing roller 5 is positioned below the axis of the sieving cylinder 3 and the installation angle a of the crushing roller 5 is between 20 and 50 degrees to ensure that the coal pieces can be crushed by the crushing roller 5, the larger coal pieces can move below the crushing roller 5 along with the sieving cylinder 3 without affecting the sieving of the sieving cylinder 3, and when the large coal pieces move below the crushing roller 5 and the coal pieces are contacted with the crushing roller 5, the rotation speed of the crushing roller 5 is larger than that of the sieving cylinder 3, and a plurality of anti-skid grooves 6 are formed on the outer wall of the crushing roller 5, so that the coal pieces can be crushed between the crushing roller 5 and the sieving cylinder 3 through the mutual cooperation of the crushing teeth 4 and the crushing roller 5, the crushed coal blocks can pass through the sieve holes on the sieving cylinder 3 to slide out of the discharge hole 14 after meeting the requirements, and the coal blocks which do not meet the requirements can be crushed and sieved again until meeting the requirements and slide out of the discharge hole 14.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. Coal pulverizer with screening function, including shell (1), its characterized in that: the utility model provides a screening cylinder (3) is provided with in shell (1) rotation, screening cylinder (3) internal eccentric is provided with crushing roller (5), crushing roller (5) with shell (1) rotate and connect crushing roller (5) with screening cylinder (3)'s one end still is provided with drive mechanism, drive mechanism respectively with screening cylinder (3) with crushing roller (5) link to each other crushing roller (5) with still be provided with feeder hopper (13) on shell (1) of screening cylinder (3) other end, the output of feeder hopper (13) passes behind shell (1) stretch into in screening cylinder (3).

2. The coal pulverizer with screening function of claim 1, wherein: two supporting wallboards (2) are oppositely arranged in the shell (1), the screening cylinder (3) is rotatably and penetratingly arranged on the two supporting wallboards (2), one end of the screening cylinder (3) is fixedly provided with a screening fluted disc (11), the other end of the screening cylinder is fixedly provided with a limiting ring (12), the output end of the feed hopper (13) penetrates through the limiting ring (12) and then stretches into the screening cylinder (3), and a plurality of crushing teeth (4) are fixedly arranged on the inner wall of the screening cylinder (3).

3. The coal pulverizer with screening function of claim 2, wherein: the utility model discloses a crushing roller, including crushing roller (5), screening section of thick bamboo (3), crushing roller (5) are provided with connecting axle (7) respectively, just crushing roller (5) pass through connecting axle (7) with shell (1) rotate and are connected, the external diameter of crushing roller (5) with the internal diameter ratio of screening section of thick bamboo (3) is 3:5, the axis of crushing roller (5) is located screening section of thick bamboo (3) axis's below still seted up a plurality of anti-skidding groove (6) on the outer wall of crushing roller (5), just the minimum distance between crushing roller (5) outer wall with screening section of thick bamboo (3) inner wall is greater than the height of crushing tooth (4).

4. A coal pulverizer with screening function according to claim 3, wherein: the transmission mechanism comprises a crushing tooth (4) wheel which is fixedly arranged on the connecting shaft (7), a screening gear (10) is rotatably arranged on one of the supporting wallboards (2), the screening gear (10) is meshed with the screening fluted disc (11), a transmission gear (17) is fixedly arranged on the screening gear (10), the diameter of the transmission gear (17) is smaller than that of the crushing tooth (4) wheel, a driving gear (8) is further arranged between the transmission gear (17) and the crushing tooth (4) wheel, and the driving gear (8) is respectively meshed with the transmission gear (17) and the crushing tooth (4) wheel.

5. The coal pulverizer with screening function of claim 4, wherein: the bottom of the shell (1) is fixedly provided with supporting legs (18), two of the supporting legs (18) are fixedly provided with brackets (15) on the outer wall of the shell (1), the brackets (15) are fixedly provided with driving motors (16), and the output ends of the driving motors (16) penetrate through the side wall of the shell (1) and are fixedly connected with the driving gears (8).

6. The coal pulverizer with screening function of claim 1, wherein: the bottom of the shell (1) is also fixedly provided with a discharge hole (14), the section of the discharge hole (14) is isosceles trapezoid, and the length of the upper bottom of the trapezoid is larger than that of the lower bottom.