CN215140219U - Pipe chain conveying system of flour mill - Google Patents
Pipe chain conveying system of flour mill Download PDFInfo
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- CN215140219U CN215140219U CN202120829921.4U CN202120829921U CN215140219U CN 215140219 U CN215140219 U CN 215140219U CN 202120829921 U CN202120829921 U CN 202120829921U CN 215140219 U CN215140219 U CN 215140219U
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Abstract
A pipe chain conveying system of a flour mill is characterized by comprising a feeding machine, an industrial platform, a jaw crusher, a first conveying pipe, a second conveying pipe, a third conveying pipe, a first pneumatic conveying device, the flour mill, a first screening device, a second screening device and a second pneumatic conveying device; the two pneumatic conveying devices and the conveying pipe form a closed circulating working system to convey the powder, so that the trouble of manual repeated conveying is avoided, the labor is saved, and the working efficiency is improved; the conveying pipeline adopts an airtight structure, so that the problems of diffusion and dust raising of powder materials during conveying can be avoided.
Description
Technical Field
The utility model relates to a conveying system especially relates to a milling machine pipe chain conveying system.
Background
Brushes (Brush) are an important component of an electric machine, responsible for conducting electric current between a rotating and a stationary part. The carbon brush is also called as a carbon brush because the carbon brush is made of graphite powder and metal powder in a large amount by pressing. Therefore, to grind the lump mixture (carbon, resin, etc.) to a specified particle size, the grinding process adopted in the present process is shown in fig. 1, and the specific steps are as follows:
1) and feeding the powder material by using a lifter, and adding the powder material into a crusher.
2) The lower part of the crusher is connected with a gallon bucket.
3) The mill was fitted with a 40 mesh screen.
4) Gallon bucket carries to milling machine department, uses the lifting machine material loading, adds the crocus in the milling machine.
5) 2 discharge ports at the bottom of the pulverizer, storing powder of minus 40 meshes for later use, and feeding the powder of plus 40 meshes again for pulverizing.
6) Repeating the operation for 2-8 times to finish the first grinding.
7) And replacing the 140-mesh screen, and feeding the-40-mesh powder ground for the first time into a grinding machine by using a lifting machine to grind the powder.
8) 2 discharge ports at the bottom of the flour mill are divided into coarse powder and fine powder, and the process is finished.
Therefore, the whole milling process is carried and fed, manual full-load work is needed, the container is replaced for multiple times in the process, and the risk that the powder is mixed in the mixing material and the foreign matters is caused. The process of replacing the screen, carrying and feeding each time needs the equipment to be stopped, and the working efficiency is obviously influenced. The dust emission is serious. The verification shows that about 10 percent of the crushed powder can be directly subjected to subsequent classification by using-40-mesh powder, and the powder can be directly ground together with + 40-mesh powder in the prior art, so that part of the powder is too fine, and the too fine powder needs to be scrapped.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a pipe chain conveying system of a flour mill, which is convenient and efficient and can reduce the workload of manpower; the problem of serious ash raising in the traditional transportation process is also solved.
In order to achieve the above object, the utility model adopts the following technical scheme:
a pipe chain conveying system of a flour mill comprises a feeding machine, a jaw crusher, a first conveying pipe, a second conveying pipe, a third conveying pipe, a first pneumatic conveying device, the flour mill, a first screening device, a second screening device and a second pneumatic conveying device;
the feeding machine is arranged on the ground, and the crusher is arranged above the feeding machine;
an outlet right below the jaw crusher is connected with a first screening device; the first screening device is installed on the ground;
the first screening device is connected with the first pneumatic conveying device through a first conveying pipe;
the first pneumatic conveying device is connected with the second screening device through a third conveying pipe;
the first screening device is connected with the second pneumatic conveying device through the second conveying pipe;
the second pneumatic conveying device is arranged above the pulverizer;
the second conveying pipe sucks powder to an inlet above the pulverizer through a second pneumatic conveying device, and the second conveying pipe is provided with another connecting port to be connected with the inlet above the pulverizer so as to introduce the powder into the pulverizer;
the outlet right below the pulverizer is connected with the second screening device;
the second screening device is provided with three discharge ports respectively: a first discharge port, a second discharge port and a third discharge port;
the second discharge hole is connected with the second conveying pipe; and forming a recyclable closed working system by the flour mill, the second screening device and the second conveying pipe.
Further, the material loading machine adopts a lifting machine matched with a gallon barrel.
Further, the hoisting height of the hoisting machine is higher than the inlet height of the jaw crusher.
Further, the first screening device is provided with a stainless steel screen of 40-50 meshes.
Further, the second screening device is a double-layer screening device; and a stainless steel screen mesh of 40-50 meshes and a stainless steel screen mesh of 140-150 meshes are sequentially arranged from top to bottom.
Further, the screened powder of 40-50 meshes is discharged into a second conveying pipe through a second discharge hole by the second screening device; continuously screening the powder of minus 40 to minus 50 meshes through a stainless steel screen mesh of 140 to 150 meshes; discharging the screened powder of 40-150 meshes from a first discharge hole; discharging the screened-140 to-150 meshes of powder from a third discharge hole.
Further, the powder is discharged to a coarse material collecting barrel through the first discharge port; and the third discharge hole discharges the powder to the fine material collecting barrel.
Further, the first pneumatic conveying device and the second pneumatic conveying device are vacuum conveying devices.
Further, an industrial platform is arranged, and the height of the platform surface of the industrial platform from the ground is respectively higher than the heights of the first screening device and the second screening device; the crusher, the first pneumatic conveying device and the flour mill are installed on the industrial platform.
The beneficial effect of this scheme is:
1. the two pneumatic conveying devices and the conveying pipe form a closed circulating working system to convey the powder, so that the trouble of manual repeated conveying is avoided, the labor is saved, and the working efficiency is improved;
2. the conveying pipeline adopts an airtight structure, so that the problems of diffusion and dust raising of powder materials during conveying can be avoided.
Drawings
The invention will be described in more detail with reference to the accompanying drawings and specific embodiments
FIG. 1 is a conventional process flow in the background art;
FIG. 2 is a side schematic view of an embodiment of a connector;
in the figure: 1. a feeding machine; 2. a jaw crusher; 3. a first screening device; 41. a first delivery pipe; 42. a second delivery pipe; 43. a third delivery pipe; 5. a first pneumatic conveying device; 6. a pulverizer; 7. a second screening device; 8. a pneumatic conveying device; 91. a first discharge port; 92. a second discharge port; 93. a third discharge port; 10. an industrial platform.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, 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 exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
As shown in fig. 2, a tube chain conveying system of a flour mill comprises a feeding machine 1, a jaw crusher 2, a first conveying pipe 41, a second conveying pipe 42, a third conveying pipe 43, a first pneumatic conveying device 5, a flour mill 6, a first screening device 3, a second screening device 7 and a second pneumatic conveying device 8; the feeding machine 1 is arranged on the ground, and the jaw crusher 2 is arranged above the feeding machine; an outlet right below the jaw crusher 2 is connected with the first screening device 3; the first screening device 3 is installed on the ground; the first screening device 3 is connected with the first pneumatic conveying device 5 through a first conveying pipe 41; the first pneumatic conveying device 5 is connected with the second screening device 7 through a third conveying pipe 43; the first screening device 3 is connected with the second pneumatic conveying device 8 through the second conveying pipe 42; the second pneumatic conveying device 8 is arranged above the pulverizer 6; the second conveying pipe 42 sucks powder to an inlet above the flour mill 6 through a second pneumatic conveying device 8, and the second conveying pipe 42 is provided with another connecting port to be connected with the inlet above the flour mill 6 so as to introduce the powder into the flour mill 6; the outlet right below the pulverizer 6 is connected with the second screening device 7; three discharge gates are installed respectively to second screening plant 7: a first discharge port 91, a second discharge port 92 and a third discharge port 93; the second discharge hole 92 is connected with the second conveying pipe 42; the mill 6, the second screening device 7 and the second duct 42 form a closed working system with circulation.
Further, the feeding machine 1 adopts a lifting machine matched with gallon barrels; the hoisting height of the hoisting machine is higher than the inlet height of the jaw crusher 2. Can make when the lifting machine feeding like this from last to better must empty the material into jaw breaker 2 down, be difficult for scattering outside, reduce wind and dust and extravagant.
Further, an industrial platform 10 is provided, and the platform surface of the industrial platform 10 is higher than the heights of the first screening device 3 and the second screening device 7 from the ground; the jaw crusher 2, the first pneumatic conveying device 5 and the flour mill 6 are arranged on the industrial platform
The platform floor of the industrial platform 10 is higher than the heights of the first screening device 3 and the second screening device 7 from the ground. The jaw crusher 2 and the mill 6 on the platform level can directly discharge the powder into the first screening device 3 and the second screening device 7, and the efficiency is higher.
Further, the first screening device 3 is provided with a stainless steel screen of 40-50 meshes.
Further, the second screening device 7 is a double-layer screening device.
And a stainless steel screen mesh of 40-50 meshes and a stainless steel screen mesh of 140-150 meshes are sequentially arranged from top to bottom. Further, the screened powder of 40-50 meshes is discharged into the second conveying pipe 42 through a second discharge hole 92 by the second screening device 7; continuously screening the powder of minus 40 to minus 50 meshes through a stainless steel screen mesh of 140 to 150 meshes; discharging the screened powder of 40-150 meshes from a first discharge hole 91; and discharging the screened-140 to-150 meshes of powder from a third discharge port 93.
In the embodiment, a stainless steel screen mesh of 40 meshes is selected from the first screening device 3; a stainless steel screen mesh of 40 meshes and a stainless steel screen mesh of 140 meshes are selected from the second screening device 7.
The mesh number is expressed in the Chinese specification by the mesh number in each square centimeter area; the larger the mesh number is, the finer the granularity of the material is; the smaller the mesh number, the larger the particle size of the material. Plus or minus sign before the mesh number indicates whether the mesh of the mesh number can be missed. Negative numbers indicate mesh openings that can leak through the mesh, i.e., the particle size is smaller than the mesh size; while a positive number indicates a mesh that cannot be missed, i.e. the particle size is larger than the mesh size.
The size of a 40-mesh sieve pore is 0.425 mm; the mesh size of the 140-mesh screen is 0.106 mm.
Further, the first discharge hole 91 discharges powder to a coarse material collecting barrel; and the third discharge hole 93 discharges the powder to a fine material collecting barrel.
Further, the first pneumatic conveying device 5 and the second pneumatic conveying device 8 are vacuum conveying devices.
The vacuum conveying device is a dust-free closed pipeline conveying device for conveying particles and powdery materials by means of vacuum suction, and utilizes the air pressure difference between vacuum and an environment space to form air flow in a pipeline and drive the powdery materials to move, so that the powder conveying is completed.
In conclusion, in the whole process, firstly, a gallon barrel filled with the pretreated material is transported to a lifter, and the lifter is used for pouring the material into a jaw crusher 2 for lump material crushing; discharging the crushed powder from an outlet, feeding the powder into a first screening device 3, and screening the powder into +40 meshes and-40 meshes through a 40-mesh screen; the screened-40-mesh powder is qualified powder and is directly conveyed to a second screening device 7 through a first conveying pipe 41 under the action of a first pneumatic conveying device 5; the screened powder of +40 meshes is conveyed to the pulverizer 6 through a second conveying pipe 42 under the action of the second pneumatic conveying device 8, and is further finely ground. The flow division can effectively prevent the qualified powder from flowing into the flour mill 6 for re-milling to cause the loss of the powder due to over-fineness; and the-40 mesh powder was transported to the certified powder area using air tight transport. The qualified powder area is arranged in the second screening device 7.
Then, the plus 40-mesh powder is continuously ground in the grinding mill 6, and the ground powder is discharged from an outlet of the grinding mill 6 and enters a second screening device 7; the second screening device 7 is provided with two layers of screens, the first layer is a 40-mesh screen, and after being ground by the grinding machine 6, powder materials which can pass through the 40-mesh screen, namely-40-mesh powder materials, and the-40-mesh powder materials which are conveyed to the qualified powder area of the second screening device 7 from the first screening device 3 enter the second-layer screening area together; unqualified powder of 40 meshes which cannot pass through the 40-mesh screen after the flour mill 6 is ground is directly discharged from the second screening device 7, enters the second conveying pipe 42, is continuously conveyed into the flour mill 6 for re-grinding, and the circulation is carried out until the powder of 40 meshes is completely ground to 40 meshes.
Finally, performing secondary screening in a second screening device 7, adopting a 140-mesh screen, passing the qualified-40-mesh powder through the 140-mesh screen, screening into 40-140-mesh coarse powder and-140-mesh fine powder, and discharging the 40-140-mesh powder to a coarse material collecting barrel through the first discharge port 91; and the third discharge hole 93 discharges powder of-140 meshes to a fine material collecting barrel. The crushed powder is conveyed to the pulverizer 6 in a pipe chain conveying mode, and excessive powder storage positions which need to be used after crushing are eliminated; and the plus 40-mesh powder after being ground is circularly conveyed to the ground powder again by using a pipe chain, so that the process loss caused by manual repeated feeding is prevented. And statistics shows that the milling time of each 300kg of powder is optimized from 130 minutes to 60 minutes, so that the capacity is obviously improved.
The whole process adopts the airtight pipe to carry, can not make the powder fly away in transportation process to the on-the-spot raise dust problem has been reduced by a wide margin.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. A pipe chain conveying system of a flour mill is characterized by comprising a feeding machine, a jaw crusher, a first conveying pipe, a second conveying pipe, a third conveying pipe, a first pneumatic conveying device, the flour mill, a first screening device, a second screening device and a second pneumatic conveying device;
the feeding machine is arranged on the ground, and the crusher is arranged above the feeding machine;
an outlet right below the jaw crusher is connected with a first screening device; the first screening device is installed on the ground;
the first screening device is connected with the first pneumatic conveying device through a first conveying pipe;
the first pneumatic conveying device is connected with the second screening device through a third conveying pipe;
the first screening device is connected with the second pneumatic conveying device through the second conveying pipe;
the second pneumatic conveying device is arranged above the pulverizer;
the second conveying pipe sucks powder to an inlet above the pulverizer through a second pneumatic conveying device, and the second conveying pipe is provided with another connecting port to be connected with the inlet above the pulverizer so as to introduce the powder into the pulverizer;
the outlet right below the pulverizer is connected with the second screening device;
the second screening device is provided with three discharge ports respectively: a first discharge port, a second discharge port and a third discharge port;
the second discharge hole is connected with the second conveying pipe; and forming a recyclable closed working system by the flour mill, the second screening device and the second conveying pipe.
2. A mill pipe chain conveyor system as in claim 1 wherein the feeder employs a gallon drum-complete hoist.
3. A mill tube chain conveyor system according to claim 2, characterized in that the hoisting height of the hoisting machine is higher than the inlet height of the jaw crusher.
4. A mill tube chain conveying system according to claim 3, characterized in that the first screening device is fitted with a 40-50 mesh stainless steel screen.
5. A mill tube chain conveyor system according to claim 4, characterized in that the second screening device is a double-deck screening device; and a stainless steel screen mesh of 40-50 meshes and a stainless steel screen mesh of 140-150 meshes are sequentially arranged from top to bottom.
6. A tube chain conveying system for a pulverizer as claimed in claim 5, wherein the second screening device discharges the screened 40-50 mesh powder material into the second conveying tube through the second discharge port; continuously screening the powder of minus 40 to minus 50 meshes through a stainless steel screen mesh of 140 to 150 meshes; discharging the screened powder of 40-150 meshes from a first discharge hole; discharging the screened-140 to-150 meshes of powder from a third discharge hole.
7. A mill pipe chain conveyor system as in claim 6 wherein the first discharge port discharges powder to a coarse collection bin; and the third discharge hole discharges the powder to the fine material collecting barrel.
8. A mill pipe chain conveyor system according to claim 1, characterized in that said first pneumatic conveyor and said second pneumatic conveyor are vacuum conveyors.
9. A pulverizer pipe chain conveying system as claimed in any of claims 1 to 8, wherein an industrial platform is provided, the platform surface of the industrial platform is higher than the heights of the first screening device and the second screening device from the ground; the crusher, the first pneumatic conveying device and the flour mill are installed on the industrial platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120829921.4U CN215140219U (en) | 2021-04-22 | 2021-04-22 | Pipe chain conveying system of flour mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120829921.4U CN215140219U (en) | 2021-04-22 | 2021-04-22 | Pipe chain conveying system of flour mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215140219U true CN215140219U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120829921.4U Active CN215140219U (en) | 2021-04-22 | 2021-04-22 | Pipe chain conveying system of flour mill |
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| Country | Link |
|---|---|
| CN (1) | CN215140219U (en) |
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2021
- 2021-04-22 CN CN202120829921.4U patent/CN215140219U/en active Active
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