CN210794989U - Material pneumatic conveying auxiliary device - Google Patents
Material pneumatic conveying auxiliary device Download PDFInfo
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- CN210794989U CN210794989U CN201921764407.6U CN201921764407U CN210794989U CN 210794989 U CN210794989 U CN 210794989U CN 201921764407 U CN201921764407 U CN 201921764407U CN 210794989 U CN210794989 U CN 210794989U
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Abstract
The utility model discloses a material pneumatic conveying auxiliary device belongs to dry material pneumatic conveying equipment technical field. The device comprises a terminal pipeline and a blocking pipe, wherein one end of the terminal pipeline is connected with the pneumatic conveying pipeline, the other end of the terminal pipeline is connected with the blocking pipe, the setting direction of the blocking pipe is parallel to that of the pneumatic conveying pipeline, and the blocking pipe and the pneumatic conveying pipeline are respectively positioned on two sides of the terminal pipeline and are oppositely arranged; the pipe diameter of the blocking pipe is larger than that of the pneumatic conveying pipeline. The utility model provides a pneumatic conveying terminal device high-pressure wind direct impact wearing and tearing damage steel construction problem, prolonged equipment life.
Description
Technical Field
The utility model relates to a material pneumatic conveying auxiliary device belongs to dry material pneumatic conveying equipment technical field.
Background
The Taigang mining division builds the anthurium pellets at the end of 2004 for production, the production process is a 200 ten thousand tons pellet grate-rotary kiln production system, bentonite is used as a pellet binder, the bentonite and iron ore concentrate are mixed according to 1.5 percent, and the mixture is produced into 9-16mm green pellets by a pelletizer, and then the green pellets are roasted to prepare the Taigang mining division. The bentonite is also the main raw material for pellet sintering, and the annual dosage is about 3 ten thousand tons. The bentonite is transported to a pelletizing workshop by a train, and then is transported into two bentonite bins by wind power, a quantitative feeding device consisting of a speed-regulating screw feeder and an impact scale is arranged below the bentonite bins, and the pneumatic transmission pressure reaches 0.4-0.6 Mpa. The pneumatic conveying terminal device is positioned at the top of the bentonite bin and discharges bentonite gas mixed material to the bin after pressure relief.
The device has the problems of serious impact wear and incapability of cleaning after sundries are blocked for many years, and the stability of system production is influenced. The pneumatic conveying terminal device has the problems that a steel structure is impacted by high-pressure airflow for a long time, ore leakage is serious after abrasion, repair welding or integral replacement is needed frequently, and two pneumatic conveying terminal devices are replaced every year. In addition, sundries such as plastic ropes and plastic bags for packing bentonite entering from the conveying pipeline are often gathered in the terminal device and cannot be cleaned, the conveying effect is affected, the main pipeline needs to be detached for cleaning in serious cases, the production is affected, the maintenance workload of workers is increased, and the structure is unreasonable.
Disclosure of Invention
The utility model provides a new pneumatic conveying auxiliary device, extension equipment life guarantees the continuous steady operation of production.
The utility model adopts the technical proposal that:
a material pneumatic conveying auxiliary device comprises a terminal pipeline and a blocking pipe, wherein one end of the terminal pipeline is connected with the pneumatic conveying pipeline, the other end of the terminal pipeline is connected with the blocking pipe, the setting direction of the blocking pipe is parallel to that of the pneumatic conveying pipeline, and the blocking pipe and the pneumatic conveying pipeline are respectively positioned on two sides of the terminal pipeline and are oppositely arranged; the pipe diameter of the blocking pipe is larger than that of the pneumatic conveying pipeline.
Furthermore, the terminal pipeline is of a cylindrical structure, and the blocking pipe and the pneumatic conveying pipeline are respectively fixed on the side wall of the outer surface of the cylinder and are oppositely arranged; the bottom outlet of the terminal pipeline is connected with the storage bin.
Furthermore, the blocking pipe consists of a blind pipe and a handhole door, and the blind pipe is connected with the handhole door through a bolt. A section of blind pipe is designed at the position where the materials impact and is used for storing the materials to form a material protection layer, so that the steel structure is not abraded and leaks the materials. The matched flange handhole cover is added at the tail end of the blind pipe, so that the plugging packing rope, bag and other sundries can be conveniently checked and cleaned after being disassembled, and the problem that the main pipeline needs to be disassembled for checking and cleaning in the past is solved.
Further, in order to ensure that the designed diameter D of the blind pipe completely covers the impact part and the length L of the blind pipe can stably store materials, the parameters are designed according to the following formula:
the outer diameter D of the blind pipe ranges from: d + Δ d = d + g × (H/v)2≤D<H; wherein Δ d is an increasing outer diameter, Δ d = g × t2= g×（H/v）2；
The length L of the blind tube ranges from: l is more than or equal to D/tan theta;
in the above formula, θ is the repose angle of the material, D is the outer diameter of the blind pipe, D is the inlet pipe diameter of the pneumatic conveying pipeline, v is the inlet speed of the material, H is the running distance of the material in the terminal pipeline, and g is the acceleration of gravity.
Furthermore, the terminal pipeline and the blind pipe are Q235 steel pipes, and the handhole door is a Q235 steel plate.
The utility model provides a material pneumatic conveying auxiliary device, the beneficial effect who brings:
(1) the problem that the steel structure is damaged due to direct impact and abrasion of high-pressure wind of the pneumatic conveying terminal device is solved, and the service life of equipment is prolonged;
(2) the added flange handhole cover is convenient for cleaning up sundries such as blocked packing ropes, bags and the like, and changes the problem that the main pipeline needs to be dismantled for cleaning up in the past.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the pneumatic material conveying auxiliary device of the present invention.
Fig. 2 is a bottom view of the terminal pipe of fig. 1.
In the figure, 1 is a terminal pipeline, 2 is a pneumatic conveying pipeline, 3 is a blind pipe, 4 is a handhole cover, and A is the direction of material inlet.
Detailed Description
Example (b):
as shown in fig. 1-2, an auxiliary device for pneumatic conveying of materials comprises a terminal pipeline 1 and a blocking pipe, wherein one end of the terminal pipeline 1 is connected with a pneumatic conveying pipeline 2, the other end of the terminal pipeline is connected with the blocking pipe, the setting direction of the blocking pipe is parallel to that of the pneumatic conveying pipeline 2, and the blocking pipe and the pneumatic conveying pipeline are respectively located on two sides of the terminal pipeline 1 and are oppositely arranged; the pipe diameter of the blocking pipe is larger than that of the pneumatic conveying pipeline.
Furthermore, the terminal pipeline 1 is of a cylindrical structure, and the blocking pipe and the pneumatic conveying pipeline are respectively fixed on the side wall of the outer surface of the cylinder and are oppositely arranged; the bottom outlet of the terminal pipeline is connected with the storage bin.
Further, the blocking pipe is composed of a blind pipe 3 and a hand hole cover 4, and the blind pipe 3 is connected with the hand hole cover 4 through a bolt.
Further, the outer diameter D of the blind pipe ranges from: d + Δ d = d + g × (H/v)2≤D<H; wherein Δ d is an increasing outer diameter, Δ d = g × t2= g×（H/v）2；
The length L of the blind tube ranges from: l is more than or equal to D/tan theta;
in the above formula, θ is the repose angle of the material, D is the outer diameter of the blind pipe, D is the inlet pipe diameter of the pneumatic conveying pipeline, v is the inlet speed of the material, H is the running distance of the material in the terminal pipeline, and g is the acceleration of gravity. In the present embodiment, L =370mm, H =500mm, D =139mm, and D =230 mm.
Furthermore, the terminal pipeline and the blind pipe are Q235 steel pipes, and the handhole door is a Q235 steel plate.
The specific manufacturing method comprises the following steps:
1. optimize the structure shape of the pneumatic conveying auxiliary device
(1) A blind pipe with the length of 370mm is additionally arranged at the impact part of the high-pressure airflow at the inlet, a bentonite material protection layer is formed in the blind pipe, and the airflow does not directly impact the steel plate shell.
(2) The diameter of the blind pipe is 91mm larger than that of the inlet pipeline; to fully cover the worn part.
(3) Increase detachable flange end cap handhole door at the blind pipe end, when debris blockked up the device, removable flange clearance has solved the problem of dismantling the main pipe clearance in the past.
2. The iron casting is changed into the steel structure, thereby being convenient for manufacturing equipment and reducing the cost.
Claims (5)
1. The utility model provides a material pneumatic conveying auxiliary device which characterized in that: the pneumatic pipe comprises a terminal pipeline and a blocking pipe, wherein one end of the terminal pipeline is connected with the pneumatic conveying pipeline, the other end of the terminal pipeline is connected with the blocking pipe, the setting direction of the blocking pipe is parallel to that of the pneumatic conveying pipeline, and the blocking pipe and the pneumatic conveying pipeline are respectively positioned on two sides of the terminal pipeline and are oppositely arranged; the pipe diameter of the blocking pipe is larger than that of the pneumatic conveying pipeline.
2. The pneumatic material conveying auxiliary device according to claim 1, characterized in that: the terminal pipeline is of a cylindrical structure, and the blocking pipe and the pneumatic conveying pipeline are respectively fixed on the side wall of the outer surface of the cylinder and are oppositely arranged; the bottom outlet of the terminal pipeline is connected with the storage bin.
3. The pneumatic material conveying auxiliary device according to claim 1, characterized in that: the plug pipe is composed of a blind pipe and a hand hole cover, and the blind pipe is connected with the hand hole cover through a bolt.
4. The pneumatic material conveying auxiliary device according to claim 3, wherein: the outer diameter D of the blind pipe ranges from: d + Δ d = d + g × (H/v)2≤D<H; wherein Δ d is an increasing outer diameter, Δ d = g × t2= g×（H/v）2；
The length L of the blind tube ranges from: l is more than or equal to D/tan theta;
in the above formula, θ is the repose angle of the material, D is the outer diameter of the blind pipe, D is the inlet pipe diameter of the pneumatic conveying pipeline, v is the inlet speed of the material, H is the running distance of the material in the terminal pipeline, and g is the acceleration of gravity.
5. The pneumatic material conveying auxiliary device according to claim 3, wherein: the terminal pipeline and the blind pipe are Q235 steel pipes, and the handhole door is a Q235 steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764407.6U CN210794989U (en) | 2019-10-21 | 2019-10-21 | Material pneumatic conveying auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764407.6U CN210794989U (en) | 2019-10-21 | 2019-10-21 | Material pneumatic conveying auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210794989U true CN210794989U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921764407.6U Active CN210794989U (en) | 2019-10-21 | 2019-10-21 | Material pneumatic conveying auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210794989U (en) |
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2019
- 2019-10-21 CN CN201921764407.6U patent/CN210794989U/en active Active
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