CN208390142U

CN208390142U - It is a kind of can wet type grinding vertical roll grinder

Info

Publication number: CN208390142U
Application number: CN201820541574.3U
Authority: CN
Inventors: 聂文海; 彭凌云; 王小峰; 宋留庆
Original assignee: Sinoma (tianjin) Powder Technology Equipment Co Ltd; Tianjin Cement Industry Design and Research Institute Co Ltd
Current assignee: Hefei Zhongya Building Materials Equipment Co.,Ltd. Tianjin Branch; Tianjin Cement Industry Design and Research Institute Co Ltd
Priority date: 2018-04-16
Filing date: 2018-04-16
Publication date: 2019-01-18
Anticipated expiration: 2028-04-16

Abstract

The utility model belongs to the field of vertical roller mills, in particular to a vertical roller mill capable of wet grinding. A water replenishing device is installed in the vertical roller mill, and the water replenishing device includes at least two water pipes. The water pipes enter the feeding cone from the top of the casing of the vertical roller mill, and run along the feeding cone. The inner wall extends downward, and at the same time, a water distribution pipe is arranged inside the unloading cone to supply water to the grinding roller and the grinding disc. The utility model provides a wet grinding vertical roller mill with low grinding energy consumption and high grinding efficiency.

Description

It is a kind of can wet type grinding vertical roll grinder

Technical field

The utility model belongs to vertical roll grinder field, in particular to it is a kind of can wet type grinding vertical roll grinder.

Background technique

Vertical Mill is widely used as a kind of energy-efficient milling equipment in building material industry.Its bed of material of Vertical Mill crushes It is obvious that working principle is allowed to energy-saving effect, has realized extensive substitution ball mill at present.Vertical Mill can effectively reduce material size, Have both the function of the 4th section of ultrafine grinding and primary grinding, power consumption is low, abrasion are low, it is small to cross grinding degree, particularly with certain ores 3mm may be implemented and throw tail in advance, subsequent ball milling operation treating capacity and mill feed size can be substantially reduced.But there are also very in the application for Vertical Mill Big potentiality, Vertical Mill structure, in terms of have very big development space.

At present mine industry mainly by wet grinding and in a manner of sorting based on, and traditional Vertical Mill is dry type milling equipment, Technique is mainly based on whole grinding vertical and pre-grinding vertical.

Therefore, these problems are based on, provide that a kind of grinding energy is low, comminution is high-efficient can wet type grinding vertical roller grinder Machine has important practical significance.

Utility model content

The utility model is to solve technical problem present in well-known technique and provide that a kind of grinding energy is low, comminution efficiency It is high can wet type grinding vertical roll grinder.

The utility model is adopted the technical scheme that solve technical problem present in well-known technique:

It is a kind of can wet type grinding vertical roll grinder, the center of top of the vertical roll grinder is equipped with for make-up water and raw material The feed cone fed is equipped with water replanishing device in the vertical roll grinder, and the water replanishing device includes at least two water pipes, described Water pipe enters the feed cone by the cover top portion of the vertical roll grinder, extends downwardly along the blanking conical inner surface, while It is equipped with distributive pipe inside feed cone, moisturizing is carried out to the grinding roller and mill.

The utility model can also use following technical scheme:

It is above-mentioned can be in the vertical roll grinder of wet type grinding, further, the vertical roll grinder does not include built-in choosing Powder machine.

It is above-mentioned can in the vertical roll grinder of wet type grinding, further, the vertical roll grinder further include collecting chamber, Material scraping plate and power device, the power device include motor and speed reducer, the motor output shaft and speed reducer input shaft phase Even, the mill is connected with speed reducer output shaft, and the enclosure space around mill constitutes the collecting chamber, the collecting chamber Below shell, the material scraping plate is connect with mill, and mill drives material scraping plate rotation, and the inside of the vertical roll grinder is equipped with Grinding roller and mill, the grinding roller are at least two cone rollers, and the mill is square position structure, and the mill edge is equipped with collet.

It is above-mentioned can be in the vertical roll grinder of wet type grinding, further, feed cone lower end discharge gate is set to The mill center.

It is above-mentioned can be in the vertical roll grinder of wet type grinding, further, the upper surface of the mill lower part is equipped with close Capping, the sealing cover cover the speed reducer, and the intersection of the sealing cover and the mill is equipped with sealant and O-ring.

It is above-mentioned can be in the vertical roll grinder of wet type grinding, further, the scum mouth of the vertical roll grinder passes through Skewed slot is directly connect with the vibrating screen, and the coarse grain product outlet of the vibrating screen is delivered to described vertical by belt conveyor The feed cone of roller mill is ground, and the fine particle product outlet of the vibrating screen connects skewed slot and enters subsequent job.

It is above-mentioned can be in the vertical roll grinder of wet type grinding, further, the screen mesh size of the vibrating screen is 3mm.

The utility model has the advantages and positive effects of:

1, the utility model is not easy to form dust pollution；Wet type is to feed grinding machine with pulpous state to mine, by abrasive surface impurity It readily washes off, and feed quantity is easy to control, and because using delivery pump and pipeline, installation cost and expenditure on power are few；Meanwhile wet type point Stage efficiency is higher than dry classification, and granularity is easily controllable to be changed in narrow range, wants conducive to subsequent sorting operation to granularity It asks；The mixing of wet type is also more uniform than dry type；The heat that wet type grinding generates is easier to exclude；Dry type grinding uses air classification Mode, energy consumption is higher, and technique is more complex；Wet classification energy consumption is lower, and technique is relatively easy.

2, the utility model does not include built-in powder concentrator, reduces energy consumption, reduces equipment investment.

3, the utility model power device is driven by motor, and is rotated by speed reducer band movable grinding disc, collecting chamber will be by grinding It crosses and overflows the collection of the slurry outside mill, these slurries are scraped to scum mouth and be discharged, divided subsequently into vibrating screen by material scraping plate Grade；The effect of collet is control thickness of feed layer maximum value.

4, the utility model is equipped with sealant and O-ring in the intersection of sealing cover and mill, to prevent water from entering deceleration Machine.

Detailed description of the invention

The technical solution of the utility model is described in further detail below with reference to drawings and examples, still It should be known that these attached drawings are designed for task of explanation, therefore not as the restriction of the scope of the utility model.In addition, Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale It draws.

Fig. 1 is the cross-sectional view of the structure of the utility model；

Fig. 2 is the water replanishing device schematic top plan view of the utility model；

Fig. 3 is the mill lower seal structure of the utility model.

In figure:

1, shell；2, grinding roller；3, mill；4, collecting chamber；5, material scraping plate；6, feed cone；7, water replanishing device；8, power fills It sets；9, sealant；10, O-ring；11, water pipe.

Specific embodiment

Firstly, it is necessary to explanation, below illustrate the utility model by by way of example can wet type grinding Specific structure, features and advantages of vertical roll grinder etc., however what all descriptions were intended merely to be illustrated, without should be by it It is interpreted as forming any restrictions to the utility model.In addition, what is be described by or imply in each embodiment mentioned by this paper appoints It anticipates single technical characteristic, or shown or implicit any single technical characteristic in the drawings, it still can be in these technologies Continue any combination between feature (or its equivalent) or delete, to obtain the sheet that may do not referred to directly herein More other embodiments of utility model.In addition, same or like technical characteristic is same attached for the sake of simplifying drawing It may only be indicated at one in figure.

It will be understood that when component ' attach ' to another component when it is said that, it can be directly connected to another component or There may be intermediate members.On the contrary, when component " being directly connected to " being arrived another component when it is said that, then it represents that middle part is not present Part.

Fig. 1 gives the cross-sectional view of the structure of the utility model, and by the way that Fig. 2 shows the water replanishing devices of the utility model Schematic top plan view, and the mill lower seal structure of the utility model is shown by Fig. 3, below just come in conjunction with Fig. 1 to Fig. 3 Illustrate the utility model.

For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and It is described in detail with the accompanying drawings as follows:

It is a kind of can wet type grinding vertical roll grinder, the center of top of the vertical roll grinder is equipped with for make-up water and raw material The feed cone 6 fed, water replanishing device 7 is equipped in the vertical roll grinder, and the water replanishing device 7 includes at least two water pipes 11, the water pipe 11 is downward along 6 inner wall of feed cone by entering the feed cone 6 at the top of the shell 1 of the vertical roll grinder Extend, while being equipped with distributive pipe 11 inside feed cone 6 and moisturizing is carried out to the grinding roller 2 and mill 3.

The utility model is not easy to form dust pollution；Wet type is to feed grinding machine with pulpous state to mine, is held by abrasive surface impurity It easily washes away, and feed quantity is easy to control, and because using delivery pump and pipeline, installation cost and expenditure on power are few；Meanwhile wet classification Efficiency is higher than dry classification, and granularity is easily controllable to be changed in narrow range, the requirement conducive to subsequent sorting operation to granularity； The mixing of wet type is also more uniform than dry type；The heat that wet type grinding generates is easier to exclude；Dry type grinding uses air classification side Formula, energy consumption is higher, and technique is more complex；Wet classification energy consumption is lower, and technique is relatively easy.

For further, it can also consider in the present invention, the vertical roll grinder does not include built-in powder concentrator.

The utility model does not include built-in powder concentrator, reduces energy consumption, reduces equipment investment.

For further, it can also consider in the present invention, the vertical roll grinder further includes collecting chamber 4, scrapes Flitch 5 and power device 8, the power device 8 include motor and speed reducer, the motor output shaft and speed reducer input shaft phase Even, the mill 3 is connected with speed reducer output shaft, and the enclosure space around mill 3 constitutes the collecting chamber 4, the receipts Collection room 4 is located at 1 lower section of shell, and the material scraping plate 5 is connect with mill 3, and mill 3 drives material scraping plate 5 to rotate, the vertical roll grinder Inside be equipped with grinding roller 2 and mill 3, the grinding roller 2 be at least two cone rollers, the mill 3 be square position structure, the mill 3 Edge is equipped with collet.

The utility model power device 8 is driven by motor, and is rotated by speed reducer band movable grinding disc 3, collecting chamber 4 will be by grinding It crosses and overflows the collection of the slurry outside mill 3, these slurries are scraped to scum mouth and are discharged by material scraping plate 5, are carried out subsequently into vibrating screen Classification；The effect of collet is control thickness of feed layer maximum value.

It should be pointed out that the 6 lower end discharge gate of feed cone is set to 3 center of mill.

It should be pointed out that the upper surface of 3 lower part of mill is equipped with sealing cover, the sealing cover covers the deceleration The intersection of machine, the sealing cover and the mill 3 is equipped with sealant 9 and O-ring 10.

The utility model is equipped with sealant 9 and O-ring 10 in the intersection of sealing cover and mill 3, subtracts to prevent water from entering Fast machine.

For further, it can also consider in the present invention, the scum mouth of the vertical roll grinder passes through skewed slot It is directly connect with the vibrating screen, the coarse grain product of the vibrating screen, which is exported, is delivered to the vertical roller grinder by belt conveyor The feed cone 6 of machine is ground, and the fine particle product outlet of the vibrating screen connects skewed slot and enters subsequent job.

It should be pointed out that the screen mesh size of the vibrating screen is 3mm.

Studies have shown that: when the unit work consumptiom needed for calculating industrial mill using BOND the grinding work index, dry milling Correction factor generally takes 1.3, and wet grinding generally takes 1.0, i.e. dry milling power consumption is 1.3 times of wet type.It will thus be seen that wet Formula ore grinding all increased than the breaking capacity and energy efficiency of dry milling.

As an example, in the present invention, when grinding machine works, raw ore feeds feed cone 6 at the top of grinding machine, with make-up water 3 center of mill is fed simultaneously, is spread out by centrifugal force to 3 surrounding of mill；Grinding concentration about 70~85% is advisable；Mill 3 is in electricity Machine drives lower rotation, while grinding roller 2 presses downwards, and ore is made to obtain comminution effect；Levigate ore pulp overflows mill from collet Disk 3 falls into collecting chamber 4 below grinding machine, is scraped by scraper plate from scum mouth, completes comminution process.

As an example, in the present invention, water replanishing device 7 is applied at feed cone 6, the moisturizing into feed cone 6, moisturizing It is injected along inner cone body section tangential direction；Feed cone 6, case inside do anti-corrosion processing.

In conclusion the utility model can provide, a kind of grinding energy is low, comminution is high-efficient can wet type grinding it is vertical Roller mill.

The utility model is described in detail in above embodiments, but the content is only the preferable reality of the utility model Example is applied, should not be considered as limiting the scope of the present invention.Equalization made according to the scope of application of this utility model Variation and improvement etc., should still belong within the patent covering scope of the utility model.

Claims

1. A vertical roller mill capable of wet grinding, characterized in that: the top center of the vertical roller mill is provided with a blanking cone for supplying replenishment water and raw materials, and the vertical roller mill There are grinding rollers and grinding discs in the interior of the vertical roller mill, and a water replenishing device is installed in the vertical roller mill. The feed cone extends downward along the inner wall of the feed cone, and at the same time, a water distribution pipe is arranged inside the feed cone to supply water to the grinding roller and the grinding disc.

2 . The vertical roller mill capable of wet grinding according to claim 1 , wherein the vertical roller mill does not include a built-in powder separator. 3 .

3 . The wet grinding vertical roller mill according to claim 1 , wherein the vertical roller mill further comprises a collection chamber, a scraper and a power device, and the power device includes a motor and a power device. 4 . Reducer, the motor output shaft is connected with the input shaft of the reducer, the grinding disc is connected with the output shaft of the reducer, the closed space around the grinding disc constitutes the collection chamber, the collection chamber is located under the shell, the scraper plate It is connected with the grinding disc, the grinding disc drives the scraper to rotate, the grinding roller is at least two conical rollers, the grinding disc is a flat disc structure, and the edge of the grinding disc is provided with a material stopper.

4 . The vertical roller mill capable of wet grinding according to claim 3 , wherein the discharge opening at the lower end of the feeding cone is arranged in the center of the grinding disc. 5 .

5 . The wet grinding vertical roller mill according to claim 3 , wherein: the upper surface of the lower part of the grinding disc is provided with a sealing cover, the sealing cover covers the reducer, and the sealing cover A sealant and an O-ring are arranged at the junction of the cover and the grinding disc.

6. The vertical roller mill capable of wet grinding according to claim 1, wherein the slag discharge port of the vertical roller mill is directly connected to the vibrating screen through the inclined groove, and the The granular product outlet is transported to the lower cone of the vertical roller mill through a belt conveyor for grinding, and the fine-grained product outlet of the vibrating screen is connected to the chute for subsequent operations.

7 . The vertical roller mill capable of wet grinding according to claim 6 , wherein the mesh size of the vibrating screen is 3 mm. 8 .