CN216063726U

CN216063726U - Flour milling system

Info

Publication number: CN216063726U
Application number: CN202122401822.9U
Authority: CN
Inventors: 史红伟; 李姜
Original assignee: Changxing Kibing Glass Co ltd
Current assignee: Changxing Kibing Glass Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-18
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to the technical field of mechanical equipment, in particular to a milling system which comprises an air quantity detection device, a grinding machine, an analyzer, a cyclone separator, a first induced draft fan, a dust remover and a second induced draft fan, wherein the grinding machine, the analyzer, the cyclone separator and the first induced draft fan are sequentially communicated; the circulating air passage where the first induced draft fan is located is a first circulating air passage, the circulating air passage where the second induced draft fan is located is a second circulating air passage, and the air quantity detection device is arranged on the first circulating air passage and the second circulating air passage and used for detecting the air quantities of the first circulating air passage and the second circulating air passage. This milling system, the bicirculating air passageway can make the powder grind more abundant of separation, has effectively guaranteed the powder output, and the system need not the power frequency that deliberately improves each draught fan in the course of working, has effectively reduced the powder processing energy consumption from this.

Description

Flour milling system

Technical Field

The utility model relates to the technical field of mechanical equipment, in particular to a powder grinding system.

Background

At present, petroleum coke grinding systems generally utilize an induced air fan to drive air circulation, the circulated air is blown into an air duct below a grinding machine, so that ground powder at the bottom of the grinding machine is blown to the top of the grinding machine, then the ground powder is screened by an analyzer and sent to a cyclone analysis cylinder to precipitate the slightly coarser powder, the other finer powder is introduced into a dust remover, the dust remover sucks some ultrafine powder into a filter bag of the dust remover, the ultrafine powder is filtered out through the filter bag, and the powder is mixed by a powder feeding reamer to form finished powder. When the flour milling system is used, the circulating air volume is improved for improving the yield of finished flour, so that the induced draft fan is overloaded and the power consumption is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a powder grinding system, and aims to solve the problems that an induced draft fan in the traditional powder grinding system is overloaded and the energy consumption of the system is overhigh.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a milling system comprises an air quantity detection device, a grinding machine, an analyzer, a cyclone separator, a first induced draft fan, a dust remover and a second induced draft fan, wherein the grinding machine, the analyzer, the cyclone separator and the first induced draft fan are sequentially communicated;

the circulating air passage where the first induced draft fan is located is a first circulating air passage, the circulating air passage where the second induced draft fan is located is a second circulating air passage, and the air quantity detection device is arranged on the first circulating air passage and the second circulating air passage and used for detecting the air quantities of the first circulating air passage and the second circulating air passage.

In one embodiment, the air volume detection device comprises a controller and a first sensor, wherein the controller is electrically connected with the first sensor, the first sensor is arranged at the outlet of the analyzer, and the first sensor is used for detecting the air volume at the outlet of the analyzer.

In one embodiment, the air volume detection device further comprises a second sensor, the second sensor is electrically connected with the controller, the second sensor is arranged at an outlet of the first induced draft fan, and the second sensor is used for detecting the air volume at the outlet of the first induced draft fan.

In one embodiment, the air volume detecting device further comprises a third sensor electrically connected with the controller, the third sensor is arranged at the inlet of the dust remover, and the third sensor is used for detecting the air volume at the inlet of the dust remover.

In one embodiment, the first induced draft fan comprises a first variable frequency motor, and the first variable frequency motor is electrically connected with the controller.

In one embodiment, the second induced draft fan comprises a second variable frequency motor, and the second variable frequency motor is electrically connected with the controller.

In one embodiment, the milling system comprises a three-way air pipe, the three-way air pipe is provided with an air inlet port and two air outlet ports, the air inlet port is communicated with an outlet of the first induced draft fan, and the two air outlet ports are respectively communicated with the grinding machine and the dust remover.

In one embodiment, the milling system further comprises a feeder disposed on one side of the mill for feeding material to the mill.

In one embodiment, the grinder is provided with a first air inlet and a second air inlet, the first air inlet is communicated with an outlet of the first induced draft fan, and the second air inlet corresponds to a discharging end of the feeder to receive materials and simultaneously supply air.

The utility model has at least the following beneficial effects:

according to the powder grinding system, powder ground by the grinding machine is blown to the upper analyzer by air formed by the first induced draft fan and the second induced draft fan, and then the powder circulates in the first circulating air passage and the second circulating air passage and is respectively subjected to screening, separation, dust removal and filtration to finally form finished powder. In the process, the air quantity detection device can detect the air quantities of the first circulating air passage and the second circulating air passage in real time, so that the power frequency of the first draught fan and/or the second draught fan can be adjusted according to needs to change the air quantity, the processing capacity of the grinding machine can be matched, and the energy consumption of the system is greatly reduced while the higher powder yield is ensured. This milling system, the dual cycle wind passageway can make the powder grind more abundant of separation, has effectively guaranteed the powder output, and the system need not the power frequency that deliberately improves each draught fan in the course of working, has effectively reduced the energy consumption of powder processing from this.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a milling system according to an embodiment.

Wherein, in the figures, the respective reference numerals:

100-a grinder;

200-an analyzer;

210-a first sensor;

300-cyclone separator;

400-a first induced draft fan;

410-a second sensor;

500-a dust remover;

510-a third sensor;

600-a second induced draft fan;

700-feeder.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, a milling system according to an embodiment of the present invention includes an air volume detection device, a grinder 100, an analyzer 200, a cyclone 300, a first induced draft fan 400, a dust collector 500, and a second induced draft fan 600, which are sequentially connected to each other. The air outlet of the first induced draft fan 400 is divided into two paths, one path is communicated to the grinding machine 100, the other path is communicated to the dust collector 500, the circulating air passage where the first induced draft fan 400 is located is a first circulating air passage, the circulating air passage where the second induced draft fan 600 is located is a second circulating air passage, and the air quantity detection device is arranged on the first circulating air passage and the second circulating air passage and used for detecting the air quantities of the first circulating air passage and the second circulating air passage.

The grinding mill 100 can be an existing grinding mill, for example, a grinding mill having a grinding chamber in which a grinding roller and a grinding ring are disposed, wherein material entering the grinding chamber is ground between the grinding roller and the grinding ring. The analyzer 200 may also be an existing analyzer to screen and grade the ground powder so that the fine powder meeting the fineness requirement may be introduced into the next device (e.g., cyclone) along with the gas flow via a pipeline. The cyclone 300 may be an existing cyclone, and may include a cyclone collector and a discharger, and the fine powder meeting the fineness requirement enters the cyclone collector along with the airflow through a pipeline, is separated and collected, and is discharged through the discharger to obtain a finished product. The dust collector 500 may be an existing dust collector, such as a bag-type dust collector, which collects powder through a filter bag to obtain a finished product.

In the powder grinding system of the embodiment of the utility model, the powder ground and processed by the grinding machine 100 is blown to the analyzer 200 above by the wind formed by the first induced draft fan 400 and the second induced draft fan 600, and then the powder circulates in the first circulating wind passage and the second circulating wind passage and is respectively subjected to screening, separation, dust removal and filtration to finally form the finished powder. In the process, the air quantity detection device can detect the air quantities of the first circulating air passage and the second circulating air passage in real time, so that the power frequency of the first draught fan 400 and/or the second draught fan 600 can be adjusted according to needs to change the air quantity, the processing capacity of the grinding machine 100 can be matched, and the energy consumption of the system is greatly reduced while the higher powder yield is ensured.

According to the powder grinding system disclosed by the embodiment of the utility model, the double-circulation air passage can enable powder to be ground and separated more fully, the powder yield is effectively ensured, and the power frequency of each induced draft fan is not required to be increased intentionally in the processing process of the system, so that the energy consumption for processing the powder is effectively reduced.

In one embodiment, the air volume detecting device includes a controller electrically connected to the first sensor 210, and the first sensor 210 is disposed at an outlet of the analyzer 200, and the first sensor 210 is used to detect the air volume at the outlet of the analyzer 200. Through setting up first sensor 210, can carry out real-time supervision to the amount of wind in the exit of analysis machine 200 to as the basis of adjusting first draught fan 400 and second draught fan 600 operating frequency, thereby make first draught fan 400 and second draught fan 600 provide the amount of wind that matches with the mill 100 output, improve the price/performance ratio of powder processing power consumption.

Preferably, the air volume detecting device further includes a second sensor 410, the second sensor 410 is electrically connected to the controller, the second sensor 410 is disposed at an outlet of the first induced draft fan 400, and the second sensor 410 is configured to detect an air volume at the outlet of the first induced draft fan 400. Through setting up second sensor 410, can carry out real-time supervision to the amount of wind in the exit of first draught fan 400 to as the foundation of the first draught fan 400 operating frequency of adjustment, thereby make first draught fan 400 can automatically regulated supply with grind the amount of wind that machine 100 output matches, improve the price/performance ratio of powder processing power consumption.

Preferably, the air volume detecting device further comprises a third sensor 510, the third sensor 510 is electrically connected to the controller, the third sensor 510 is disposed at the inlet of the dust remover 500, and the third sensor 510 is used for detecting the air volume at the inlet of the dust remover 500. Through setting up third sensor 510, can carry out real-time supervision to the amount of wind of dust remover 500 import department to as the basis of adjustment second draught fan 600 operating frequency, thereby make second draught fan 600 can automatically regulated supply with the amount of wind that grinds the matching of machine 100 output, improve the price/performance ratio of powder processing power consumption. The types of the first sensor 210, the second sensor 410, and the third sensor 510 described above are preferably wind pressure sensors.

In one embodiment, the first induced draft fan 400 comprises a first variable frequency motor electrically connected to the controller. In one embodiment, second induced draft fan 600 includes a second variable frequency motor electrically connected to the controller. In the embodiment, the rotating speed of the motor can be reduced by adjusting the frequency of the variable frequency motor, the air quantity in the air duct is reduced, and the powder in the air duct can be separated out more easily when passing through the cyclone separator 300, so that the yield of the finished powder is improved. In addition, the frequency of the motor is reduced, and redundant air volume is reduced, so that the air volume in the air duct is matched with the output of the grinding machine 100, and the aim of reducing processing power consumption is fulfilled.

On the basis of each embodiment, the milling system includes tee bend tuber pipe, and tee bend tuber pipe has an air inlet port and two air-out ports, and the air inlet port communicates with the export of first draught fan 400, and two air-out ports communicate with grinding machine 100 and dust remover 500 respectively. The three-way air pipe is convenient for dividing the air outlet of the first induced draft fan 400 into two paths, thereby being beneficial to simplifying the structure.

In other embodiments, the first induced draft fan 400 may also be provided with two air outlets, and the two air outlets may be respectively connected to the grinding machine 100 and the dust remover 500 through two air pipes.

On the basis of the above embodiments, the milling system further includes a feeder 700, the feeder 700 being disposed at one side of the mill 100, the feeder 700 being used to feed the material to the mill 100. The delivery of the powder to the mill 100 may be facilitated by the provision of the feeder 700. The feeder 700 may be a screw conveyor, a belt conveyor, or the like.

In one embodiment, the grinder 100 is provided with a first air inlet communicated with the outlet of the first induced draft fan 400 and a second air inlet corresponding to the discharging end of the feeder 700 for air intake while receiving the material. In this embodiment, an air inlet of the grinder 100 is aligned with the powder inlet, which simplifies the structure and facilitates the feeding.

In other embodiments, the grinder 100 may also be provided with one inlet for communicating with the feeder 700, and two inlets, one of which is used for communicating with the first induced draft fan 400, and the other of which is opened on the wall of the grinder 100 for air intake.

The operation mode of the powder grinding system of the embodiment of the utility model is approximately as follows:

the powder to be processed is sent into the grinding mill 100 through the feeder 700, is ground in the grinding mill 100, and then enters the analyzer 200 above the grinding mill 100 for screening under the action of the circulating air formed by the first induced draft fan 400 and the second induced draft fan 600, and then the powder circulates in the first circulating air passage and the second circulating air passage. Wherein, a part of the powder is separated by the cyclone separator 300 to form a part of finished powder, and the other part of the powder enters the grinder 100 again under the action of the first induced draft fan 400. Before the part of powder enters the grinding machine 100, a part of powder enters the dust remover 500 under the action of the second induced draft fan 600, and is filtered and collected by the dust remover 500 to form finished powder.

Meanwhile, in the whole process of powder grinding treatment, the first sensor 210, the second sensor 410 and the third sensor 510 respectively detect the air volume at the outlet of the analyzer 200, the air volume at the outlet of the first induced draft fan 400 and the air volume and air volume detection device at the inlet of the dust remover 500, so that the power frequency of the first induced draft fan 400 and/or the second induced draft fan 600 can be adjusted as required to change the air volume, the processing capacity of the grinding machine 100 can be matched, and the energy consumption of the system can be greatly reduced while the higher powder yield is ensured.

The traditional grinding system has the working mode that after a large block raw material is crushed to the required feeding granularity by the grinding system, the material is conveyed to a storage bin by a bucket elevator and then is uniformly conveyed into a grinding cavity of a main machine by an electromagnetic vibration feeder, the material entering the grinding cavity is ground between a grinding roller and a grinding ring, the ground powder is conveyed to an analyzer by air flow of a fan for classification, and fine powder meeting the fineness requirement enters a large cyclone collector along with the air flow through a pipeline for separation and collection and is discharged through a discharge opening to obtain a finished product.

Compared with the traditional milling system, the milling system provided by the utility model has the advantages that the double-circulation air passage is utilized to more fully mill and separate powder, the powder yield is effectively ensured, various parameters of the milling yield, the air pressure and the power consumption can be debugged for many times according to needs, the power consumption is greatly reduced while the milling yield is ensured, and the long-term and beneficial operation of the milling system is facilitated.

The grinding system can be widely applied to grinding processing of mineral product materials in the fields of metallurgy, building materials, chemical industry, mines and the like, such as gypsum, talcum, calcite, limestone, marble, potash feldspar, barite, dolomite, granite, kaolin, bentonite, medical stone, bauxite, iron oxide red, iron ore and the like.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A milling system is characterized by comprising an air quantity detection device, a grinding machine, an analyzer, a cyclone separator, a first induced draft fan, a dust remover and a second induced draft fan, wherein the grinding machine, the analyzer, the cyclone separator and the first induced draft fan are sequentially communicated;

the circulating air passage at the first draught fan is a first circulating air passage, the circulating air passage at the second draught fan is a second circulating air passage, and the air quantity detection device is arranged on the first circulating air passage and the second circulating air passage and used for detecting the air quantity of the first circulating air passage and the air quantity of the second circulating air passage.

2. The pulverizer system of claim 1, wherein the air volume detecting device includes a controller and a first sensor, the controller being electrically connected to the first sensor, the first sensor being disposed at an outlet of the analyzer, the first sensor being configured to detect an air volume at the outlet of the analyzer.

3. The pulverizer system of claim 2, wherein the air volume detection device further comprises a second sensor, the second sensor is electrically connected to the controller, the second sensor is disposed at an outlet of the first induced draft fan, and the second sensor is configured to detect an air volume at the outlet of the first induced draft fan.

4. The pulverizer system of claim 2, wherein the air volume detecting device further comprises a third sensor electrically connected to the controller, the third sensor being provided at an inlet of the dust remover, the third sensor being configured to detect an air volume at the inlet of the dust remover.

5. The mill system of claim 2, wherein the first induced draft fan includes a first variable frequency motor electrically connected to the controller.

6. The mill system of claim 2, wherein the second induced draft fan includes a second variable frequency motor electrically connected to the controller.

7. The pulverizer system of claim 1, wherein the pulverizer system comprises a tee air duct having an inlet port and two outlet ports, the inlet port communicating with the outlet of the first induced draft fan, the two outlet ports communicating with the grinder and the dust collector, respectively.

8. The mill system of claim 1 further comprising a feeder disposed on one side of the mill for feeding material to the mill.

9. The pulverizer system of claim 8, wherein the grinder is provided with a first air inlet and a second air inlet, the first air inlet is communicated with an outlet of the first induced draft fan, and the second air inlet corresponds to a discharging end of the feeder to receive the material and supply air.