CN216224248U

CN216224248U - A compounding and pelletization device for composite friction braking material

Info

Publication number: CN216224248U
Application number: CN202122837535.2U
Authority: CN
Inventors: 龙波; 马成龙; 曹静武; 程景琳; 赵旭; 丁向莹; 孙志远; 魏东彬
Original assignee: Beijing Tianyishangjia New Material Co Ltd
Current assignee: Beijing Tianyishangjia New Material Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-08
Anticipated expiration: 2031-11-18

Abstract

The utility model provides a mixing and granulating device for a composite friction braking material, which belongs to the technical field of granulation and comprises the following components: a barrel body, wherein a granulating mechanism is arranged inside the barrel body; the granulating mechanism is provided with a rotating disc for granulating; the mixing bin is arranged at the upper end of the barrel; the mixing bin is provided with a feeding hole and a discharging hole; the discharge hole of the mixing bin is communicated with the inlet of the cylinder; the spraying piece is arranged inside the barrel body and is arranged at the upper end of the granulating mechanism; the spray member has a nozzle; the nozzle faces the axial center line direction of the cylinder body; a drying assembly having a heating member for heating; the heating element is arranged at the lower end of the rotating disc; the mixing and granulating device for the composite friction braking material is carried out in the same equipment in the whole process, the turnover among different equipment is not needed, the crushing degree of the crystalline flake graphite is reduced, and the production efficiency is improved.

Description

A compounding and pelletization device for composite friction braking material

Technical Field

The utility model relates to the technical field of granulation, in particular to a mixing and granulating device for a composite friction braking material.

Background

At present, the powder metallurgy brake pad mainly comprises an iron-based friction material and a copper-based friction material, and the main production process comprises mixing, pressing and sintering. Compounding refers to the process of uniformly mixing metallic and non-metallic powders by mechanical or fluid means.

The mixing materials commonly used at present are classified into three types according to the use: 1) the mixer only has a mixing function; 2) the mixer has the functions of mixing and adding liquid; 3) the mixer has the functions of mixing, adding liquid and vacuumizing;

powder metallurgy friction material uses easy broken natural scale graphite at the compounding in-process, and at traditional pelletization in-process, the material need shift over to next equipment after the compounding and add the forming agent and pelletize the drying, has enough to meet the need the in-process between different equipment, and the broken degree of natural scale graphite has the problem that production efficiency is low simultaneously to aggravate easily.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defects that the crushing degree of natural crystalline flake graphite is easy to aggravate and the production efficiency is low in the process of transferring materials in different equipment in the prior art, so that the mixing and granulating device for the composite friction braking material is provided.

In order to solve the technical problems, the utility model provides a mixing and granulating device for a composite friction braking material, which comprises:

a barrel body, wherein a granulating mechanism is arranged inside the barrel body; the granulating mechanism is provided with a rotating disc for granulating;

the mixing bin is arranged at the upper end of the barrel; the mixing bin is provided with a feeding hole and a discharging hole; the discharge hole of the mixing bin is communicated with the inlet of the cylinder;

the spraying piece is arranged inside the barrel body and is arranged at the upper end of the granulating mechanism; the spray member has a nozzle; the nozzle faces the axial center line direction of the cylinder body;

a drying assembly having a heating member for heating; the heating member is arranged at the lower end of the rotating disk.

Preferably, a stirring element is arranged at the horizontal axis of the mixing silo.

Preferably, the stirring part comprises a stirring shaft connected with the mixing bin and spiral stirring blades arranged on the stirring shaft.

Preferably, the nozzle has a plurality of nozzles; the plurality of nozzles are uniformly arranged in the circumferential direction.

Preferably, the nozzle is arranged obliquely downward.

Preferably, the granulating mechanism is a rotary granulator; the rotary granulator comprises a rotating disc which is rotatably arranged relative to the cylinder.

As a preferred scheme, a baffle is arranged on the side wall of the rotating disk; one end of the baffle extends towards the center of the rotating disc; the baffle has a gap with the bottom of the rotating disc, and the gap is used for controlling the grain size of the granules.

Preferably, the baffle is slidably disposed with respect to the rotating disk.

As a preferred scheme, the inner wall of blending bunker is provided with the ceramic layer.

Preferably, the discharge port of the mixing bin extends out towards the inside of the cylinder.

The technical scheme of the utility model has the following advantages:

1. the utility model provides a mixing and granulating device for a composite friction brake material, which comprises: the device comprises a cylinder, a mixing bin, a spraying piece and a drying assembly; a spraying part and a granulating mechanism are arranged in the barrel, and the spraying part is arranged at the upper end of the granulating mechanism; after the powder is uniformly stirred in the material changing bin, the powder falls into the barrel after being discharged, in the descending process, the forming agent is sprayed out through the nozzle, the forming agent is uniformly sprayed on the powder, the mixture adhered with the forming agent falls into a rotating disc of the granulating mechanism to form round grains, the round grains are heated through the heating element, and the solvent of the forming agent is volatilized to obtain the required grains; the whole process is carried out in the same equipment, the turnover among different equipment is not needed, the crushing degree of the scale graphite is reduced, and the production efficiency is improved.

2. According to the mixing and granulating device for the composite friction braking material, a plurality of nozzles are arranged along the circumferential direction, so that the forming agent can be uniformly sprayed on the powder.

3. According to the mixing and granulating device for the composite friction brake material, provided by the utility model, heating and drying are carried out while the rotary disc rolls for granulating, natural crystalline flake graphite and the like which are low in density and easy to break are well wrapped, and the uniformity and good fluidity of components of a mixed mixture are ensured.

In conclusion, the mixture obtained by the device can ensure that different positions of the friction block have better physical properties and stable friction properties when the friction block is formed by pressing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a mixing and granulating apparatus of the present invention.

Fig. 2 is a top view of the rotating disk shown in fig. 1.

Description of reference numerals:

1. a barrel; 2. a mixing bin; 3. a stirring member; 4. a feed inlet; 5. a discharge port; 6. a spray member; 7. mixing the materials; 8. rotating the disc; 9. and a baffle plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The mixing and granulating device for the composite friction brake material, as shown in fig. 1, includes a cylinder 1, wherein a cavity is arranged in the cylinder 1; the upper end of barrel 1 is provided with blending bunker 2, the upper end of blending bunker 2 is provided with the feed inlet 4 that is used for the raw materials to get into, and the lower extreme is provided with the discharge gate 5 that is used for the raw materials outflow. A stirring piece 3 is arranged on a horizontal axis in the mixing bin 2; specifically, stirring member 3 includes the (mixing) shaft, and the both ends of (mixing) shaft are connected with the both ends of blending bunker 2, and the (mixing) shaft is provided with spiral stirring vane from a left side to the right side.

In the use process, the raw materials are put into the mixing bin 2 from the inlet, are stirred by the stirring piece 3 to form a uniformly mixed mixture 7, and the mixture 7 flows out from the discharge hole 5 of the mixing bin.

The discharge port 5 is provided with an extending end, and the extending end extends towards the interior of the cavity of the cylinder body 1; a spray piece 6 is arranged in the cavity of the cylinder body 1, and the spray piece 6 is used for spraying a forming agent; one end of the spray piece 6 is communicated with a container of the forming agent through a pipeline, and the other end of the spray piece is provided with a nozzle; the nozzle is arranged at the lower end of the discharge hole 5; the nozzles are uniformly arranged along the circumferential direction of the discharge port 5 and are inclined downwards, so that the forming agent is uniformly sprayed downwards along the periphery of the outflow direction of the mixture 7, and the forming agent is uniformly sprayed on the mixture 7.

The mixture 7 sprayed with the forming agent falls into a rotary granulator; specifically, the rotary granulator comprises a rotary disc 8 which is rotatably arranged relative to the barrel 1, the mixture 7 adhered with the forming agent falls into the rotary disc 8, and meanwhile, the rotary disc 8 is obliquely and downwards arranged, so that the mixture has a rolling and falling process when rotating in the rotary disc 8, and the mixture 7 can form round granules through the rotary rolling of the rotary disc 8, similar to a snowball; the lower end of the rotating disk 8 is provided with a heating element, the heating element is started while the rotating disk 8 rotates and rolls, the solvent of the forming agent is volatilized in a heating mode, and then the mixture 7 with controllable granularity can be obtained through a cooling area.

During use, by setting the shaping agent nozzle air flow: 1-300L/min, 20-300mL/L of forming agent, 20-200rpm of the rotating disc 8, 1-89 degrees of inclination angle of the rotating disc 8, 1-10h of rotating time, 60-120 ℃ of drying temperature and other parameters, and can obtain the controllable mixture 7 with different grain size combinations, ensure the fluidity of the mixture 7 and improve the working efficiency. The friction block is ensured to have better physical property and stable friction property, and the requirement of telling the train to brake can be met.

Further, as shown in fig. 2, a baffle 9 is provided on the rotating disk 8; one end of the baffle 9 is connected with the side wall of the rotating disk 8 in a sliding way, and the other end extends towards the center of the rotating disk 8. The baffle 9 has a gap with the bottom of the rotating disc 8, which gap is used to control the particle size of the granulate. According to the required particle size, the size of the gap between the baffle plate 9 and the rotating disc 8 can be adjusted, and the size of the prepared particle size can be adjusted.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. The utility model provides a compounding and pelletization device for compound friction brake material which characterized in that includes:

a cylinder (1) provided with a granulating mechanism inside; the granulating mechanism is provided with a rotating disc (8) for granulating;

the mixing bin (2) is arranged at the upper end of the barrel (1); the mixing bin (2) is provided with a feeding hole (4) and a discharging hole (5); a discharge hole (5) of the mixing bin (2) is communicated with an inlet of the cylinder body (1);

the spraying piece (6) is arranged inside the barrel body (1) and is arranged at the upper end of the granulating mechanism; the spray piece (6) has a nozzle; the nozzle faces the axial center line direction of the barrel (1);

a drying assembly having a heating member for heating; the heating element is arranged at the lower end of the rotating disc (8).

2. A mixing and granulating apparatus for composite friction brake materials as claimed in claim 1, wherein a stirring member (3) is provided at the horizontal axis of the mixing silo (2).

3. A mixing and granulating apparatus as claimed in claim 2, wherein said stirring members (3) comprise two stirring shafts connected to the mixing silo (2) and helical stirring blades provided on the stirring shafts.

4. A mixing and granulating apparatus as claimed in claim 1, wherein said nozzles are plural; the plurality of nozzles are uniformly arranged in the circumferential direction.

5. A mixing and granulating apparatus as claimed in claim 4, wherein said nozzles are disposed in an inclined downwardly disposition.

6. A mixing and granulating apparatus for a composite friction brake material as defined in claim 1 wherein said granulating means is a rotary granulator; the rotary granulator comprises a rotary disc (8) which is rotatably arranged relative to the cylinder body (1).

7. A mixing and granulating apparatus as claimed in claim 6, wherein the rotating disc (8) is provided with baffles (9) on its side walls; one end of the baffle plate (9) extends towards the center of the rotating disc (8); the baffle (9) has a gap with the bottom of the rotating disc (8), and the gap is used for controlling the grain size of the granules.

8. A mixing and granulating apparatus as claimed in claim 7, wherein said baffles (9) are slidably disposed with respect to said rotatable disc (8).

9. A mixing and granulating apparatus as claimed in claim 1, wherein the inner wall of the mixing silo (2) is provided with a ceramic layer.

10. A mixing and granulating apparatus as claimed in claim 1, wherein the discharge outlet (5) of the mixing silo (2) projects towards the interior of the barrel (1).