CN111514987A - Material layer construction device of crushing and grinding equipment, crushing and grinding equipment and material layer construction method of crushing and grinding equipment - Google Patents

Material layer construction device of crushing and grinding equipment, crushing and grinding equipment and material layer construction method of crushing and grinding equipment Download PDF

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Publication number
CN111514987A
CN111514987A CN202010348243.XA CN202010348243A CN111514987A CN 111514987 A CN111514987 A CN 111514987A CN 202010348243 A CN202010348243 A CN 202010348243A CN 111514987 A CN111514987 A CN 111514987A
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CN
China
Prior art keywords
grinding
layer
grinding disc
crushing
disc
Prior art date
Application number
CN202010348243.XA
Other languages
Chinese (zh)
Inventor
俞章法
郝兵
纪杨建
弯勇
李�浩
陶飞
王新昌
Original Assignee
中信重工机械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 中信重工机械股份有限公司 filed Critical 中信重工机械股份有限公司
Priority to CN202010348243.XA priority Critical patent/CN111514987A/en
Publication of CN111514987A publication Critical patent/CN111514987A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs

Abstract

The invention relates to the technical field of crushing and grinding, and discloses a crushing and grinding equipment material layer construction device, crushing and grinding equipment and a crushing and grinding equipment material layer construction method. Wherein, the grinding equipment bed of material founds the device and includes: a grinding disc; the grinding roller is positioned above the non-central part of the grinding disc and used for pressing or grinding the materials on the grinding disc; the feeding mechanism is used for feeding materials to the center of the grinding disc from the position right above the grinding disc; the flattening plate is positioned above the edge of the grinding disc and used for flattening the materials in the contact area with the grinding roller to form a material layer with a certain thickness; the pressurizing mechanism is used for driving the grinding roller to compact the material positioned at the edge of the grinding disc; and the sensor is used for measuring the thickness of the material layer. The feeding mechanism can enable the materials to fall in the center of the grinding disc; the flattening plate can flatten materials; the pressurizing mechanism can assist in compacting materials; the sensor can detect the thickness of the material layer in real time. Therefore, the problem that the grinding efficiency is influenced due to poor material layer formation in the background art is solved.

Description

Material layer construction device of crushing and grinding equipment, crushing and grinding equipment and material layer construction method of crushing and grinding equipment

Technical Field

The invention relates to the technical field of crushing and grinding, in particular to a crushing and grinding equipment material layer construction device, crushing and grinding equipment and a crushing and grinding equipment material layer construction method.

Background

A vertical roller mill (short for vertical mill) is used as mineral crushing mill equipment and is used for crushing and milling materials in a natural environment, the materials are crushed and milled on a rotary millstone by a crushing roller (short for grinding roller) through pressurization of an oil cylinder, the materials are crushed through extrusion among material particles, the grinding roller and the millstone are not in contact in the whole process, the materials are dried in the crushing and milling process, moisture is taken away by hot air, the crushing and milling process is completed in closed equipment, the whole process is continuous and can not be interrupted, high-temperature hot air flows in the equipment, good sealing performance is required, and the materials are provided with a special feed port and are isolated from the outside.

The materials ground and ground vertically are softer, the materials are easy to extrude and flow in the pressurizing process of the grinding roller, the materials are not compacted, and the vibration of the equipment is large and the operation is unstable. Therefore, the formation of the material layer is the key of the stable work of the vertical mill, and the formation mode of the material layer influences the grinding efficiency and influences the production efficiency and yield. The state of the material layer (compacted by the grinding roller) is an important parameter for reflecting the working state of the vertical mill, and the material layer can help to analyze the grinding effect and judge whether the equipment generates larger vibration or not.

Because of the space limitation of the powder concentrator, the traditional vertical mill is provided with a feed inlet on the side surface of the material returning cone of the powder concentrator, and a material layer is formed by the dead weight of the material. In addition, because the material can not fall in the center of the grinding disc, a material pile is easily formed above the grinding disc, the material pile is bonded into blocks after the material pile is formed for a long time, the internal space environment is changed, the formation of a material layer is influenced, and the grinding efficiency and the yield of grinding equipment are further influenced.

Disclosure of Invention

The invention aims to provide a material layer constructing device of a crushing and grinding device, the crushing and grinding device and a material layer constructing method of the crushing and grinding device, and aims to solve the problem that the crushing and grinding efficiency is influenced due to poor material layer formation in the background technology.

In order to achieve the above object, a first aspect of the present invention provides a pulverizing device layer constructing apparatus including:

a grinding disc;

the grinding roller is positioned above the non-central part of the grinding disc and used for pressing or grinding the materials on the grinding disc;

the feeding mechanism is used for feeding materials to the center of the grinding disc from the position right above the grinding disc;

the flattening plate is positioned above the edge of the grinding disc and used for flattening the materials in the contact area of the grinding roller to form a material layer with a certain thickness;

a pressurizing mechanism for driving the grinding roller to compact the material in a region of contact with the grinding roller;

a sensor for measuring the thickness of the bed of material compacted by the pressing mechanism.

Through above-mentioned technical scheme, can make the material fall in the mill center through feeding mechanism, pave the material with the help of the shakeout board, realize material evenly distributed, through the pressurization mechanism help grinding roller compaction material, can real-time detection grinding roller and mill between the bed of material thickness through the sensor, provide data support for equipment and production state regulation and control. Therefore, the problem that the material layer is formed in the working process of the vertical mill and the material cannot fall to the center of the grinding disc during feeding in the background technology is solved, and the running performance and the production efficiency of the equipment are effectively improved.

Further, the material layer constructing device of the crushing and grinding equipment also comprises a powder concentrator cone used for guiding the material from the feeding mechanism to the center of the grinding disc.

Further, the axis of the cone of the powder concentrator coincides with the axis of the grinding disc, and an opening is formed in the bottom of the cone of the powder concentrator and faces the grinding disc.

Further, the feeding mechanism comprises a feeding hole and a discharging hole, the discharging hole is located in the cone, and the discharging hole is located outside the cone.

Further, the feeding mechanism is arranged as a screw conveyor.

Further, the pressurizing mechanism comprises an oil cylinder, and the sensor comprises a displacement sensor; a piston rod of the oil cylinder is hinged with the grinding roller, and the displacement sensor is arranged on the oil cylinder and used for detecting the expansion amount of the piston rod of the oil cylinder; the piston rod is stretched to drive the grinding roller to compact the materials of the grinding disc and form a material layer with a certain thickness.

The invention provides a grinding device in a second aspect, which comprises the grinding device material layer constructing device.

The crushing and grinding equipment with the crushing and grinding equipment material layer constructing device can solve the problem that the crushing and grinding efficiency and the yield of the crushing and grinding equipment are influenced due to poor material layer formation.

A third aspect of the present invention provides a pulverizing method comprising:

conveying the material to the center of the grinding disc from the position right above the grinding disc;

the grinding disc is driven to rotate, so that the material flows and is distributed on the surface of the grinding disc to form a tapered shape;

scraping materials in a contact area with the grinding roller by using a spreading plate to form a material layer with a certain thickness;

compacting the material by a pressurizing mechanism to form a material layer;

and measuring the thickness of the material layer.

By utilizing the grinding method, the problems of material layer formation in the working process of the vertical mill and the problem that the material can not fall in the center of the grinding disc during feeding in the background technology are solved, and the running performance and the production efficiency of the equipment are effectively improved.

Further, the materials are conveyed into the cone of the powder concentrator by the spiral conveyor and are guided to the center of the grinding disc by the cone of the powder concentrator.

Furthermore, the extension amount of the piston rod of the oil cylinder is detected by using a displacement sensor, and the thickness of the discharging layer is converted.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a bed building apparatus of the pulverizer of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of an embodiment of a connection relationship between a pressurizing mechanism and a grinding roll.

Description of the reference numerals

10 millstone 2 grinding roller

30 feeding mechanism 31 feed inlet

32 discharge outlet 40 cone

50 pressurizing mechanism 60 sensor

70 powder concentrator centrum 51 telescopic rod

52 oil cylinder 21 supporting arm

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.

In a first aspect of the present invention, there is provided a material layer constructing apparatus for a pulverizer, as shown in fig. 1, comprising:

a grinding disc 10;

the grinding roller 20 is positioned above the non-central part of the grinding disc 10 and used for pressing or grinding the materials on the grinding disc 10;

a feeding mechanism 30 for feeding material from directly above the grinding disc 10 to the center of the grinding disc 10;

a spreading plate 40 positioned above the edge of the grinding disc 10 and used for scraping the materials in the contact area with the grinding roller 20 to form a material layer with certain thickness;

a pressing mechanism 50, the pressing mechanism 50 being adapted to drive the grinding roller 20 to compact material in an area of contact with the grinding roller 20;

a sensor 60 for measuring the thickness of the layer of material compacted by the pressing means 50.

By the technical scheme, the feeding mechanism 30 can enable the material to fall in the center of the grinding disc 10; the material can be paved by the flattening plate 40, so that the material is uniformly distributed; the compression mechanism 50 can help the grinding roller 10 to compact the material; the thickness of the material layer between the grinding roller 20 and the grinding disc 10 can be detected in real time through the sensor 60, and data support is provided for equipment and production state regulation. Therefore, the technical scheme solves the problem that the grinding efficiency is influenced due to poor material layer formation in the background technology.

In order to further optimize the material falling in the center of the grinding disc 10 and avoid the material being unevenly distributed and affecting the formation of a material layer, the material layer constructing device of the grinding device is also provided with a cone 40 of the powder concentrator. The function of the concentrator cone 40 is to guide the material from the feed mechanism 30 to the concentrator cone 40 in the centre of the grinding disc 10. Specifically, the powder concentrator cone 40 is located above the grinding disc 10, preferably, the axis of the powder concentrator cone 70 is arranged to coincide with the axis of the grinding disc 10, and the bottom of the powder concentrator cone 70 is provided with an opening facing the grinding disc 10. In this way it is ensured that material can fall from directly above the grinding disc 10 to the centre position of the grinding disc 10.

The feeding mechanism 30 comprises a feeding hole 31 and a discharging hole 32, the discharging hole 32 is located inside the cone 40, and the discharging hole 32 is located outside the cone 40. Further preferably, the feeding mechanism 30 is provided as a screw conveyor.

The pressurizing mechanism 50 may be a pneumatic cylinder or an oil cylinder, and preferably an oil cylinder. The sensor 60 is a displacement sensor. A piston rod of the oil cylinder is hinged with the grinding roller 20, and the displacement sensor is arranged on the oil cylinder and used for detecting the expansion amount of the piston rod of the oil cylinder; the piston rod is extended and contracted to drive the grinding roller 20 to compact the material of the grinding disc 10 and form a material layer with a certain thickness.

A brief description of how the cylinders drive the grinding rollers 20 to compact the material to form a bed of a given thickness will now be given. As shown in fig. 2 and 3, the pulverizing and grinding equipment layer constructing apparatus further includes a support arm 21; the pressurizing mechanism 50 further comprises an expansion link 51; one end of the supporting arm 21 is hinged to a piston rod of the oil cylinder 52, the other end of the supporting arm is rigidly connected to the grinding roller 20, one end of the telescopic rod 51 is connected to the same end of the supporting arm 21 hinged to the piston rod, and the telescopic rod 51 is used for limiting the supporting arm 21 connected to one end of the oil cylinder 52 to move only in the horizontal direction (the "horizontal" refers to the orientation below with reference to fig. 1 or fig. 3). Thus, when the piston rod is shortened, the grinding roller 20 is moved away from the grinding disc 10, and when the piston rod is extended, the grinding roller 20 is moved closer to the grinding disc 10 to compact the material on the grinding disc 10.

As shown in fig. 2, the grinding rollers 20 are preferably provided in three, three grinding rollers 20 being rotationally symmetrical about the axis of the grinding disc 10.

Further, the spreading plates 40 are arranged in two, and the two spreading plates 40 are circumferentially distributed above the grinding disc 10 at intervals. Further preferably, at least one of the spreader plates 40 is disposed in a space between two of the spreader plates 40.

The working principle of the material layer constructing device of the crushing and grinding equipment is briefly described as follows:

as shown in fig. 1, first, material is delivered from directly above the grinding disc 10 to the center of the grinding disc 10 using the feed mechanism 30 and the concentrator cone 40. Under the centrifugal force of the rotating grinding disc 10, the material flow is distributed to the surface of the grinding disc 10 in a tapered shape 70. Then, the material in the contact area of the grinding roller 20 is scraped by the flattening plate 40 to form a material layer 80 with a certain thickness, and the material layer 90 is formed by driving the grinding roller 20 to compact the material by the pressurizing mechanism 50. The displacement sensor detects the extension of the piston rod of the oil cylinder, converts the thickness of the discharging layer, detects the thickness of the material layer between the grinding roller 20 and the grinding disc 10 in real time, and provides data support for the regulation and control of equipment and production state. Thus, the problems of poor material layer formation, influence on grinding efficiency and further influence on production efficiency and yield existing in the background art are solved

In a second aspect, the invention provides a crushing and grinding device, which comprises the crushing and grinding device material layer constructing device.

The crushing and grinding equipment with the crushing and grinding equipment material layer constructing device can solve the problem that the crushing and grinding efficiency and the yield of the crushing and grinding equipment are influenced due to poor material layer formation.

In a third aspect, the present invention provides a pulverizing method comprising:

conveying the material to the center of the grinding disc 10 from the position right above the grinding disc 10;

the grinding disc 10 is driven to rotate, so that the material flows and is distributed on the surface of the grinding disc 10 to form a tapered shape;

scraping the materials in the contact area with the grinding roller 20 by using a spreading plate 60 to form a material layer with a certain thickness;

compacting the material by a pressurizing mechanism 50 to form a material layer;

and (4) measuring the thickness of the material layer, specifically, detecting the extension of a piston rod of the oil cylinder by using a displacement sensor, and converting the thickness of the material layer.

By utilizing the grinding method, the problems of material layer formation in the working process of the vertical mill and the problem that the material can not fall in the center of the grinding disc during feeding in the background technology are solved, and the running performance and the production efficiency of the equipment are effectively improved.

In the above, the material is conveyed by feeding the material into the powder concentrator cone 70 through the screw conveyor, and the material is guided to the center of the grinding disc 10 through the powder concentrator cone 70.

The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (10)

1. A pulverizing and grinding equipment material layer constructing apparatus, comprising:
a grinding disc (10);
the grinding roller (20) is positioned above the non-central part of the grinding disc (10) and used for pressing or grinding the materials on the grinding disc (10);
a feeding mechanism (30) for feeding material from directly above the grinding disc (10) to the center of the grinding disc (10);
a flattening plate (40) which is positioned above the edge of the grinding disc (10) and is used for flattening the material in the contact area with the grinding roller (20) to form a material layer with certain thickness;
a pressurizing mechanism (50), wherein the pressurizing mechanism (50) is used for driving the grinding roller (20) to compact the materials in the contact area of the grinding roller (20);
a sensor (60) for measuring the thickness of the layer of material compacted by the pressing means (50).
2. The comminution apparatus layer building device of claim 1, further comprising a concentrator cone (40) for directing material from a feed mechanism (30) to the center of the grinding disc (10).
3. The comminuted grinding apparatus layer building apparatus according to claim 2, characterized in that the axis of the powder concentrator cone (70) coincides with the axis of the grinding disc (10), the bottom of the powder concentrator cone (70) being provided with an opening facing the grinding disc (10).
4. The material layer building device of a pulverizer as claimed in claim 3, characterized in that the feed mechanism (30) comprises a feed opening (31) and a discharge opening (32), the discharge opening (32) being located inside the cone (40), the discharge opening (32) being located outside the cone (40).
5. The comminution apparatus bed building device of claim 4, characterized in that the feed mechanism (30) is provided as a screw conveyor.
6. The apparatus for building up a bed of grinding equipment according to claim 1, characterized in that the pressure means (50) comprise a cylinder (52) and the sensor (60) comprises a displacement sensor; a piston rod of the oil cylinder is hinged with the grinding roller (20), and the displacement sensor is arranged on the oil cylinder and used for detecting the expansion amount of the piston rod of the oil cylinder; the piston rod is extended and contracted to drive the grinding roller (20) to compact the material of the grinding disc (10) and form a material layer with a certain thickness.
7. A crushing and grinding apparatus characterized by the crushing and grinding apparatus layer constructing device of any one of claims 1 to 6.
8. A method for constructing a material layer of a grinding device, which is characterized by comprising the following steps:
conveying the material to the center of the grinding disc (10) from the position right above the grinding disc (10);
the grinding disc (10) is driven to rotate, so that the material flows and is distributed on the surface of the grinding disc (10) to form a tapered shape;
scraping materials in a contact area with the grinding roller (20) by using a spreading plate (60) to form a material layer with a certain thickness;
compacting the material by a pressurizing mechanism (50) to form a material layer;
and measuring the thickness of the material layer.
9. The method of constructing a bed of grinding equipment according to claim 8, characterized in that the material is fed into the mill cone (70) by means of a screw conveyor, through which mill cone (70) the material is guided to the centre of the grinding disc (10).
10. The method for constructing a material layer of a grinding device according to claim 8, characterized in that a displacement sensor is used for detecting the extension of a piston rod of the oil cylinder and converting the thickness of the material layer.
CN202010348243.XA 2020-04-28 2020-04-28 Material layer construction device of crushing and grinding equipment, crushing and grinding equipment and material layer construction method of crushing and grinding equipment CN111514987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010348243.XA CN111514987A (en) 2020-04-28 2020-04-28 Material layer construction device of crushing and grinding equipment, crushing and grinding equipment and material layer construction method of crushing and grinding equipment

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Application Number Priority Date Filing Date Title
CN202010348243.XA CN111514987A (en) 2020-04-28 2020-04-28 Material layer construction device of crushing and grinding equipment, crushing and grinding equipment and material layer construction method of crushing and grinding equipment

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CN111514987A true CN111514987A (en) 2020-08-11

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2698446Y (en) * 2004-03-18 2005-05-11 鲁扬 Flour mill
CN101318153A (en) * 2007-06-07 2008-12-10 中信重工机械股份有限公司 Method and apparatus for flattening, compacting and crushing material
CN201357083Y (en) * 2009-02-12 2009-12-09 上海宝钢工程技术有限公司 External water spraying type vertical roller mill for slag
CN201454646U (en) * 2009-06-02 2010-05-12 上海宝田新型建材有限公司 Thickness monitoring device of slag vertical mill grinding abrasive bed
CN202621230U (en) * 2012-02-13 2012-12-26 宇部兴产机械株式会社 Vertical grinder
CN202823503U (en) * 2012-06-28 2013-03-27 江苏恒远国际工程有限公司 Material layer detection and grinding roll limit device of vertical grinding roll
CN203874842U (en) * 2014-05-23 2014-10-15 河南中联节能工程有限公司 Vertical mill material distribution device
CN106423528A (en) * 2016-08-31 2017-02-22 珠海市华远自动化科技有限公司 Material layer thickness control system and method used in vertical roller mill
CN207413595U (en) * 2017-09-26 2018-05-29 龙岩亿丰机械科技有限公司 A kind of Vertical Mill drawing-in device
CN208449487U (en) * 2018-07-13 2019-02-01 西安市红会医院 A kind of Chinese materia medica preparation preparation medicinal material grinding device
CN209020489U (en) * 2018-10-19 2019-06-25 东莞市五全机械有限公司 A kind of small-sized Vertical Mill of novel ultra-fine
CN210070812U (en) * 2019-06-17 2020-02-14 上海云统创申智能科技有限公司 Material layer thickness on-line detection device of vertical flour mill
CN110860342A (en) * 2019-11-15 2020-03-06 南京钜力智能制造技术研究院有限公司 External circulation roller type vertical mill

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2698446Y (en) * 2004-03-18 2005-05-11 鲁扬 Flour mill
CN101318153A (en) * 2007-06-07 2008-12-10 中信重工机械股份有限公司 Method and apparatus for flattening, compacting and crushing material
CN201357083Y (en) * 2009-02-12 2009-12-09 上海宝钢工程技术有限公司 External water spraying type vertical roller mill for slag
CN201454646U (en) * 2009-06-02 2010-05-12 上海宝田新型建材有限公司 Thickness monitoring device of slag vertical mill grinding abrasive bed
CN202621230U (en) * 2012-02-13 2012-12-26 宇部兴产机械株式会社 Vertical grinder
CN202823503U (en) * 2012-06-28 2013-03-27 江苏恒远国际工程有限公司 Material layer detection and grinding roll limit device of vertical grinding roll
CN203874842U (en) * 2014-05-23 2014-10-15 河南中联节能工程有限公司 Vertical mill material distribution device
CN106423528A (en) * 2016-08-31 2017-02-22 珠海市华远自动化科技有限公司 Material layer thickness control system and method used in vertical roller mill
CN207413595U (en) * 2017-09-26 2018-05-29 龙岩亿丰机械科技有限公司 A kind of Vertical Mill drawing-in device
CN208449487U (en) * 2018-07-13 2019-02-01 西安市红会医院 A kind of Chinese materia medica preparation preparation medicinal material grinding device
CN209020489U (en) * 2018-10-19 2019-06-25 东莞市五全机械有限公司 A kind of small-sized Vertical Mill of novel ultra-fine
CN210070812U (en) * 2019-06-17 2020-02-14 上海云统创申智能科技有限公司 Material layer thickness on-line detection device of vertical flour mill
CN110860342A (en) * 2019-11-15 2020-03-06 南京钜力智能制造技术研究院有限公司 External circulation roller type vertical mill

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