CN213864396U - Positive pressure dense-phase continuous conveying device for powder - Google Patents
Positive pressure dense-phase continuous conveying device for powder Download PDFInfo
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- CN213864396U CN213864396U CN202021461585.4U CN202021461585U CN213864396U CN 213864396 U CN213864396 U CN 213864396U CN 202021461585 U CN202021461585 U CN 202021461585U CN 213864396 U CN213864396 U CN 213864396U
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Abstract
The utility model discloses a powder malleation dense phase continuous conveyor, including feed bin, batcher, injection conveyer, blender, the female pipe of transport and the female pipe of compressed air, be connected through the passage between feed bin and the batcher, the feeder bottom is equipped with the discharge gate, injection conveyer includes upper feed opening, front end air inlet nozzle and exit end venturi area material shower nozzle, wherein upper feed opening and batcher bottom discharge gate intercommunication, venturi area material shower nozzle is connected with the blender input, be equipped with injection conveyer bleeder valve on the blender entry, be connected through the flange between the output of blender and the female pipe of transport, the device provides new transport theory and new control method on traditional pneumatic conveying basis, effectively improve system transport efficiency, operating stability, reliability and economic nature, can reduce the energy consumption simultaneously, reduce equipment initial investment and maintenance and operation maintenance cost etc., simple operation, convenient use and high practicability.
Description
Technical Field
The utility model relates to a likepowder thing airtight pneumatic transport technical field specifically is a likepowder thing malleation dense phase continuous conveyor.
Background
The powder conveying is widely applied to various production enterprises, no matter which conveying technology firstly ensures that the powder is closed and does not raise dust, and the environmental pollution is reduced, the traditional powder pneumatic conveying is divided into positive pressure conveying and negative pressure conveying, the positive pressure conveying is divided into dense-phase conveying and dilute-phase conveying, the positive pressure dilute-phase continuous pneumatic conveying and the positive pressure dense-phase pneumatic conveying work based on the principle of a pneumatic jet pump, the positive pressure dilute-phase continuous pneumatic conveying belongs to low-pressure conveying, the conveying output is low and the distance is short, the positive pressure dense-phase pneumatic conveying belongs to high-pressure conveying, the conveying distance is larger than 500m, the conveying quantity is larger than 30t/h, and dilute-phase continuous conveying equipment which is lower than the conditions is more economical.
The traditional positive pressure dense-phase conveying device has no corresponding high-pressure continuous feeding device, only can perform intermittent charging and conveying, has frequent equipment action and large equipment loss in operation; the average solid-gas ratio in the conveying process is low, the conveying efficiency is low and the energy consumption is high; the solid-gas ratio changes greatly, the material moves fast in the initial stage and the final stage of a conveying cycle, the equipment abrasion is large, and the economic benefit of a production enterprise is seriously influenced; therefore, the utility model provides a powder malleation dense phase continuous conveyor solves above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model aims to provide a likepowder malleation dense phase continuous conveyor to solve above-mentioned problem.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a likepowder malleation dense phase continuous conveyor, includes feed bin, batcher, injection conveyer, blender, carries female pipe and the female pipe of compressed air, be connected through the passage between feed bin and the batcher, the feeder bottom is equipped with the discharge gate, and the injection conveyer includes upper feed opening, front end air inlet nozzle and exit end venturi area material shower nozzle, and wherein upper feed opening and batcher bottom discharge gate intercommunication, venturi area material shower nozzle are connected with the blender input, and the blender entry is equipped with injection conveyer bleeder valve, is connected through the flange between the output of blender and the female pipe of transport.
In one alternative: and a feeding door and a feeding valve are sequentially arranged on the material guide pipe from top to bottom.
In one alternative: the feeder is vertical convergent screw feeder, and its appearance is the cone of handstand, including metal casing and screw rod, the screw rod passes through the bearing rotation to be installed in metal casing, and the fixed tapered helical blade that is equipped with on the screw rod, metal casing top fixed mounting has inverter motor, and inverter motor's output shaft extends to in the metal casing and is connected with the screw rod upper end.
In one alternative: the spraying conveyor is connected with an electrically-adjustable nozzle, and the outer end of an air inlet nozzle of the spraying conveyor is connected with a compressed air main pipe through a hose movable joint.
In one alternative: and the conveying main pipe is provided with a blocking discharge valve, a pressure gauge and a pressure transmitter.
In one alternative: the compressed air feeding device is characterized in that a first guide pipe, a second guide pipe, a third guide pipe and a fourth guide pipe are connected to the compressed air main pipe, one end, far away from the compressed air main pipe, of the first guide pipe extends into a pipe section, close to the feeder, of the guide pipe, a feeding purge valve is arranged on the first guide pipe, one end, far away from the compressed air main pipe, of the second guide pipe is connected with a first branch pipe and a second branch pipe in a branching mode, one ends, far away from the second guide pipe, of the first branch pipe and the second branch pipe extend into the injection conveyor, a fluidization air door is arranged on the second guide pipe, one end, far away from the compressed air main pipe, of the third guide pipe extends into the mixer, a mixing air inlet valve is arranged on the third guide pipe, one end, far away from the compressed air main pipe, of the fourth guide pipe extends into the conveying main pipe, a conveying air replenishing valve is arranged on the fourth guide pipe, and a feeding air inlet valve is arranged on a pipe section, located between the second guide pipe and the third guide pipe.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects:
1. the positive-pressure dense-phase continuous powder conveying device avoids the time required by repeated charging in the traditional dense-phase intermittent conveying, and avoids the time consumption, gas consumption and system abrasion caused by high-speed movement of materials in the initial pressure increasing stage and the final pressure decreasing stage of each cycle of the traditional dense-phase conveying;
2. the positive pressure dense-phase continuous powder conveying device avoids the traditional dense-phase intermittent conveying frequent start-stop system, valve opening and closing and the like, and has less action times and less loss during the operation of equipment;
3. in the process of conveying the powder positive pressure dense phase continuous conveying device, the system automatically controls feeding, the optimal solid-gas ratio is always kept in the pipeline, and compared with the traditional dense phase conveying, the average solid-gas ratio is high, so that the conveying efficiency is greatly improved, the average moving speed of the material is low, and the abrasion of pipeline equipment is small;
4. the positive pressure dense phase continuous powder conveying device has high automation degree, improves the operation reliability and stability of the system, and reduces the operation cost and the maintenance cost.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Notations for reference numerals: 1-stock bin, 2-feed gate, 3-feed valve, 4-feeding purge valve, 5-electric regulation nozzle, 6-feeder, 7-jet conveyor, 8-jet conveyor discharge valve, 9-fluidization air door, 10-feeding air inlet valve, 11-mixing air inlet valve, 12-mixer, 13-blockage removal valve, 14-pressure gauge, 15-pressure transmitter, 16-conveying main pipe, 17-compressed air main pipe and 18-conveying air supplement valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Please refer to fig. 1, in the embodiment of the present invention, a positive pressure dense-phase continuous powder conveying device, includes a bin 1, a feeder 6, a jet conveyor 7, a mixer 12, a conveying main pipe 16 and a compressed air main pipe 17, the bin 1 is connected with the feeder 6 through a material guiding pipe, the material guiding pipe is sequentially provided with a feeding door 2 and a feeding valve 3 from top to bottom, the feeder 6 is a vertical tapered screw feeder, the appearance of the vertical tapered screw feeder is an inverted cone, the vertical tapered screw feeder comprises a metal shell and a screw rod, the screw rod is installed in the metal shell through a bearing rotation, the screw rod is fixedly provided with a tapered helical blade, the top of the metal shell is fixedly provided with a variable frequency motor, an output shaft of the variable frequency motor extends into the metal shell and is connected with the upper end of the screw rod, and the bottom of the feeder 6 is provided with a discharge port.
The jet conveyor 7 utilizes the working principle of a material seal pump and comprises an upper feed opening, a front end air inlet nozzle and an outlet end Venturi strip spray head, wherein the upper feed opening is communicated with a discharge opening at the bottom of a feeder 6, the Venturi strip spray head is connected with the input end of a mixer 12, an inlet of the mixer 12 is provided with a jet conveyor discharge valve 8, further, the jet conveyor 7 is connected with an electric adjusting nozzle 5, the electric adjusting nozzle 5 is a power source of the jet conveyor 7, the outer end of the air inlet nozzle of the jet conveyor 7 is connected with a compressed air main pipe 17 through a hose movable joint, the outer end of the air inlet nozzle is connected with an assembly part of the outer wall of the jet chamber through a threaded pipe, the outer part of the air inlet nozzle is sealed by a packing pressurizing cover, the device is in a stop state, the horizontal expansion amount can be adjusted electrically or manually on site, and the outer side sealing cover must be loosened and the outer connection must be removed before operation and adjustment.
The output end of the mixer 12 is connected with a main conveying pipe 16 through a flange, the main conveying pipe 16 is provided with a blocking valve 13, a pressure gauge 14 and a pressure transmitter 15, the main compressed air pipe 17 is connected with a first guide pipe, a second guide pipe, a third guide pipe and a fourth guide pipe, wherein one end of the first guide pipe, far away from the main compressed air pipe 17, extends into a pipe section of a material guide pipe, close to the feeder 6, a feeding purge valve 4 is arranged on the first guide pipe, one end of the second guide pipe, far away from the main compressed air pipe 17, is respectively connected with a first branch pipe and a second branch pipe, one ends of the first branch pipe and the second branch pipe, far away from the second guide pipe, both extend into the jet conveyor 7, the second guide pipe is provided with a fluidization air door 9, one end of the third guide pipe, far away from the main compressed air pipe 17, extends into the mixer 12, the third guide pipe is provided with a mixing air inlet valve 11, one end of the, the fourth conduit is provided with a conveying air compensating valve 18, and a feeding air inlet valve 10 is arranged on a pipe section of the compressed air main pipe 17 between the second conduit and the third conduit.
Furthermore, the device is controlled by a remote control panel, the control panel is controlled by a PLC programmable automatic control system, and a manual control button and an automatic control button are arranged on the control panel.
The utility model discloses a theory of operation is: the utility model discloses when using:
1. firstly, checking the state of the device, judging whether a starting condition is met, and then setting a control pressure, an upper limit pressure and a lower limit pressure value through a control panel;
2. selecting manual control or automatic control;
3. starting the device, automatically checking the state and parameters of each device by a system to be normal, automatically opening a mixing air inlet valve 11 and a conveying air compensating valve 18 when the starting conditions are met, opening a discharge valve 8 of a jet conveyor, a feeding air inlet valve 10 and a feeding purging valve 4, and purging the system when a feeding valve 3 is in a closed state;
4. the pressure of the conveying main pipe 16 is lower than the lower limit pressure value for 5 seconds, and after the blowing is finished, the feeding blowing valve 4 and the conveying gulp valve 18 are closed;
5. the feeding purge valve 4 is closed in place and sends a signal, the feeder 6 is started, the starting current returns to a normal value, and the feeding valve 3 is opened;
6. the feeding machine 6 automatically tracks a 'control pressure' value according to the pressure of the conveying main pipe 16, the conveying pressure is equal to the control pressure within the range of +/-20 KPa, the rotating speed of the feeding machine 6 is not adjusted, the conveying pressure is lower than the control pressure by 20KPa and lasts for 5 seconds, the rotating speed of the feeding machine 6 is increased at a slow speed, the conveying pressure is lower than the control pressure by 50KPa and lasts for 5 seconds, the rotating speed of the feeding machine 6 is increased at a medium speed, the conveying pressure is lower than the control pressure by 80KPa and lasts for 5 seconds, the rotating speed of the feeding machine 6 is increased at a fast speed, the conveying pressure is lower than the control pressure by 100KPa and lasts for 5 seconds, and the feeding machine 6 is increased to the highest rotating speed at the fastest speed;
7. when the conveying pressure is higher than the control pressure by 20KPa for 5 seconds, slowly reducing the rotating speed of the feeder 6, when the conveying pressure is higher than the control pressure by 50KPa for 3 seconds, reducing the rotating speed of the feeder 6 at a higher speed, when the conveying pressure is higher than the control pressure by 80KPa for 2 seconds, reducing the rotating speed of the feeder 6 to the lowest rotation at the highest speed;
8. when the conveying pressure reaches the upper limit pressure and lasts for 5 seconds, the discharge valve 8 and the feeding air inlet valve 10 of the jet conveyor are closed, the control program is automatically switched to a 'blockage removal mode', the feeding machine 6 is stopped, and the system automatically removes blockage.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A positive-pressure dense-phase continuous powder conveying device comprises a storage bin (1), a feeder (6), a jet conveyor (7), a mixer (12), a conveying main pipe (16) and a compressed air main pipe (17), and is characterized in that the storage bin (1) is connected with the feeder (6) through a material guide pipe, a discharge hole is formed in the bottom of the feeder (6), the compressed air main pipe (17) is connected with a first guide pipe, a second guide pipe, a third guide pipe and a fourth guide pipe, wherein one end, far away from the compressed air main pipe (17), of the first guide pipe extends into a pipe section, close to the feeder (6), of the material guide pipe, a feeding purge valve (4) is arranged on the first guide pipe, one end, far away from the compressed air main pipe (17), of the second guide pipe is connected with a first branch pipe and a second branch pipe respectively, one ends, far away from the second guide pipe, of the first branch pipe and the second branch pipe both extend into the jet conveyor (7), a fluidization air door (9) is arranged on the second guide pipe, one end of the third guide pipe, which is far away from the compressed air main pipe (17), extends into the mixer (12), a mixing air inlet valve (11) is arranged on the third guide pipe, one end of the fourth guide pipe, which is far away from the compressed air main pipe (17), extends into the conveying main pipe (16), a conveying air supplementing valve (18) is arranged on the fourth guide pipe, and a feeding air inlet valve (10) is arranged on a pipe section of the compressed air main pipe (17), which is positioned between the second guide pipe and the third guide pipe;
the jet conveyor (7) comprises an upper feed opening, a front-end air inlet nozzle and an outlet-end Venturi belt material spray head, wherein the upper feed opening is communicated with a discharge opening at the bottom of the feeder (6), the Venturi belt material spray head is connected with the input end of the mixer (12), an inlet of the mixer (12) is provided with a jet conveyor discharge valve (8), and the output end of the mixer (12) is connected with the conveying main pipe (16) through a flange.
2. The positive pressure dense-phase continuous powder conveying device according to claim 1, wherein a feeding gate (2) and a feeding valve (3) are arranged on the guide pipe from top to bottom in sequence.
3. The positive pressure dense-phase continuous powder conveying device according to claim 1, wherein the feeder (6) is a vertical tapered screw feeder, the shape of the feeder is an inverted cone, the feeder comprises a metal casing and a screw, the screw is rotatably mounted in the metal casing through a bearing, a tapered helical blade is fixedly arranged on the screw, a variable frequency motor is fixedly mounted at the top of the metal casing, and an output shaft of the variable frequency motor extends into the metal casing and is connected with the upper end of the screw.
4. The positive pressure dense-phase continuous powder conveying device according to claim 1, characterized in that an electrically adjustable nozzle (5) is connected to the jet conveyor (7), and the outer end of the air inlet nozzle of the jet conveyor (7) is connected with a compressed air main pipe (17) through a hose joint.
5. The positive pressure dense-phase continuous powder conveying device according to claim 1, characterized in that a blocking valve (13), a pressure gauge (14) and a pressure transmitter (15) are arranged on the conveying main pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021461585.4U CN213864396U (en) | 2020-07-23 | 2020-07-23 | Positive pressure dense-phase continuous conveying device for powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021461585.4U CN213864396U (en) | 2020-07-23 | 2020-07-23 | Positive pressure dense-phase continuous conveying device for powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213864396U true CN213864396U (en) | 2021-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021461585.4U Active CN213864396U (en) | 2020-07-23 | 2020-07-23 | Positive pressure dense-phase continuous conveying device for powder |
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| Country | Link |
|---|---|
| CN (1) | CN213864396U (en) |
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2020
- 2020-07-23 CN CN202021461585.4U patent/CN213864396U/en active Active
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