CN215981941U

CN215981941U - Coal pulverizer lubricating oil recycle device

Info

Publication number: CN215981941U
Application number: CN202121508495.0U
Authority: CN
Inventors: 王大海; 尹玉光; 倪龙宇
Original assignee: Shilian Chemical Jiangsu Co ltd
Current assignee: Shilian Chemical Jiangsu Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-03-08
Anticipated expiration: 2031-07-02

Abstract

The utility model provides a lubricating oil recycling device for a coal mill, which comprises a gear shield, an oil accumulation box, a precipitation box and a recycling bin, wherein the gear shield is arranged on the gear shield; an oil outlet groove communicated with the inside and the outside of the gear shield is formed in the side surface of the gear shield; the upper end surface of the oil accumulation box is welded on the lower end surface of the gear shield and extends out of the gear shield along the Y direction, and the oil accumulation box is positioned below the oil outlet groove; the upper end face of the part of the oil accumulation box extending out of the gear shield along the Y direction is opened to form an oil inlet end; the oil inlet end of the oil accumulation box is positioned in the oil outlet range of the oil outlet groove; one end face of the oil accumulation box, which is far away from the oil outlet groove, is opened to form an oil outlet end; the sedimentation box is welded on the lower end surface of the oil accumulation box along the Y direction; the oil inlet end of the settling box is lower than the oil outlet end of the oil accumulation box; the recycling bin is communicated with the sedimentation box through a pipeline; the recycling bin is lower than the sedimentation box. The utility model can avoid the blocking phenomenon of the bottom of the gear shield and can realize the recycling of the lubricating oil.

Description

Coal pulverizer lubricating oil recycle device

Technical Field

The utility model belongs to the technical field of coal mills, and particularly relates to a lubricating oil recycling device for a coal mill.

Background

When the coal mill normally operates, the dry oil injection pump periodically injects oil to the transmission gear for lubrication. Because the coal mill runs in a dust environment for a long time, lubricating oil sprayed by the dry oil injection pump is easy to accumulate at the bottom of the gear shield and is combined with coal powder to form oil residue, and the oil residue blocks a gap between the gear and the gear shield. Along with the gear operation, most oil residues are attached to the gear, so that the surface of the gear cannot form an oil film for effective lubrication, the abrasion degree of the gear is aggravated, the service life of the gear is shortened, and the stable operation of the coal mill is seriously restricted.

In the prior art, in order to ensure the stable operation of the mill, the gear shield can only be frequently disassembled and inspected to clean oil residues on the surface of the gear and at the bottom of the gear shield. However, the oil residue has high viscosity, so that the cleaning operation is time-consuming and labor-consuming. In addition, the oil residue is in a solid-liquid mixed state, which is not beneficial to recycling, and affects the sanitation of the surrounding environment.

Disclosure of Invention

The utility model aims to provide a lubricating oil recycling device for a coal mill, which can avoid the phenomenon of blocking the bottom of a gear shield and can recycle the lubricating oil. In order to achieve the purpose, the utility model adopts the following technical scheme:

a coal pulverizer lubricating oil recycle device includes:

the side surface of the gear shield is provided with an oil outlet groove which is communicated with the inside and the outside of the gear shield;

the upper end surface of the oil accumulation box is welded on the lower end surface of the gear shield and extends out of the gear shield along the Y direction, and the oil accumulation box is positioned below the oil outlet groove; the upper end face of the part of the oil accumulation box extending out of the gear shield along the Y direction is opened to form an oil inlet end; the oil inlet end of the oil accumulation box is positioned in the oil outlet range of the oil outlet groove; one end face, far away from the oil outlet groove, of the oil accumulation box is opened to form an oil outlet end;

the sedimentation box is welded on the lower end surface of the oil accumulation box along the Y direction; the oil inlet end of the settling box is lower than the oil outlet end of the oil accumulation box;

the recycling bin is communicated with the sedimentation box through a pipeline; the recycling bin is lower than the settling box.

Preferably, the distance between the oil outlet groove and the lower end face of the gear shield is a preset distance.

Preferably, the recovery device further comprises an L-shaped step arranged on the ground, the L-shaped step comprises a horizontal step and a vertical step fixed on the horizontal step, the bottom surface of the settling box is arranged on the horizontal step, and the recovery barrel is arranged on the ground.

Preferably, the oil accumulation box extends out of the gear shield along the X direction.

Preferably, the oil accumulation box is made of 304 stainless steel.

Preferably, the lower end face of the oil accumulation box is obliquely arranged.

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

(1) the oil outlet groove is formed in the side face of the gear shield and guides lubricating oil to the oil accumulation box, so that the bottom of the gear shield can be prevented from being blocked, dead zones at the bottom of the gear shield are fundamentally eliminated, oil residues are prevented from being attached to the gear, oil films on the surface of the gear are uniformly distributed, and the gear is well lubricated.

(2) Lubricating oil is recycled through the oil accumulation box, the precipitation box and the recycling bin, so that the energy is saved and the environment is protected.

Drawings

Fig. 1 is a side view of a lubricating oil recycling apparatus for a coal mill according to an embodiment of the present invention.

Wherein, 1-gear shield, 2-oil outlet groove, 3-oil accumulation box, 4-precipitation box, and 5-recycling bin.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying schematic drawings, in which preferred embodiments of the utility model are shown, it being understood that one skilled in the art may modify the utility model herein described while still achieving the advantageous effects of the utility model. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the utility model.

A coal pulverizer lubricating oil recycle device includes: gear guard shield 1, oil outlet tank 2, long-pending oily box 3, deposit box 4, recycling bin 5 and L type step.

An oil outlet groove 2 for communicating the inside of the gear shield 1 with the outside is formed in the side surface of the gear shield 1; the gear is mounted in the gear shield 1, the gear rotates in the gear shield 1, and the gear shield 1 is kept still. The dry oil injection device injects lubricating oil into the gear shield 1, the lubricating oil lubricates the gear, deposits at the bottom of the gear shield 1 by self weight, and then flows into the oil accumulation box 3 through the oil outlet groove 2. The installation mode of the gear and the gear shield 1 and the mode of the dry oil injection device injecting lubricating oil into the gear shield 1 are the prior art, and are not described herein again. Further, the distance between the oil outlet groove 2 and the lower end face of the gear shield 1 is a preset distance, that is, the oil outlet groove 2 is close to the lower end face of the gear shield 1, so that the lubricating oil in the gear shield 1 is discharged into the oil accumulating box 3 to the maximum extent.

The oil accumulation box 3 is made of 304 stainless steel; the upper end surface of the oil accumulation box 3 is welded on the lower end surface of the gear shield 1 and extends out of the gear shield 1 along the Y direction, and the oil accumulation box 3 extends out of the gear shield 1 along the X direction; the oil accumulation box 3 is positioned below the oil outlet groove 2; the upper end face of the part of the oil accumulation box 3 extending out of the gear shield 1 along the Y direction is opened to form an oil inlet end; the oil inlet end of the oil accumulation box 3 is positioned in the oil outlet range of the oil outlet tank 2; an end surface (right end surface) of the oil accumulation box 3 away from the oil outlet groove 2 is opened to form an oil outlet end. In this embodiment, the end of the oil accumulation box 3 close to the sedimentation box 4 is the right end. In embodiments other than this embodiment, the lower end surface of the oil accumulation box 3 is disposed obliquely, i.e., the right end surface is lower than the left end surface, to guide the lubricating oil to the settling box 4.

The settling box 4 is made of 304 stainless steel; the sedimentation box 4 is welded on the lower end surface of the oil accumulation box 3 along the Y direction; the oil inlet end of the settling box 4 is lower than the oil outlet end of the oil accumulation box 3;

the recycling bin 5 is communicated with the sedimentation box 4 through a pipeline; the recycling bin 5 is lower than the settling box 4.

The L-shaped step is placed on the ground and comprises a horizontal step and a vertical step fixed on the horizontal step, the bottom surface of the settling box 4 is placed on the horizontal step, and the recovery barrel 5 is placed on the ground.

The working principle of the utility model is as follows:

when the coal mill normally works, the lubricating oil sprayed by the dry oil injection pump lubricates the gear of the coal mill, deposits at the bottom of the gear shield 1 by dead weight, the lubricating oil flows into the oil accumulation box 3 through the oil outlet groove 2 on the side surface of the gear shield 1, the lubricating oil flows into the precipitation box 4 through the diversion of the oil accumulation box 3, the precipitation box 4 precipitates oil residues in the lubricating oil, and the clean lubricating oil flows into the recovery barrel 5 through the pipeline to be recycled again.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a coal pulverizer is with lubricating oil recycle device which characterized in that includes:

2. The coal pulverizer lubricating oil recycling device of claim 1, wherein the distance between the oil outlet groove and the lower end surface of the gear guard is a predetermined distance.

3. The coal mill lubricating oil recycling device according to claim 1, further comprising an L-shaped step disposed on the ground, wherein the L-shaped step comprises a horizontal step and a vertical step fixed to the horizontal step, the bottom surface of the settling box is disposed on the horizontal step, and the recycling bin is disposed on the ground.

4. The coal pulverizer lubricating oil recycling device of claim 1, wherein the oil collecting box extends out of the gear guard in the X direction.

5. The coal mill lubricating oil recycling device according to claim 1, wherein the oil collecting box is made of 304 stainless steel.

6. The coal mill lubricating oil recycling device according to claim 1, wherein a lower end surface of the oil collecting box is disposed to be inclined.