CN218421833U - Dust recovery device in ammonium phosphate granulation - Google Patents
Dust recovery device in ammonium phosphate granulation Download PDFInfo
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- CN218421833U CN218421833U CN202221951194.XU CN202221951194U CN218421833U CN 218421833 U CN218421833 U CN 218421833U CN 202221951194 U CN202221951194 U CN 202221951194U CN 218421833 U CN218421833 U CN 218421833U
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Abstract
The utility model provides a dust recovery device in ammonium phosphate granulation. The utility model provides a device, which comprises a dust collection fan, a dust collection mechanism, a washer and an evacuation chimney, wherein the dust collection mechanism comprises a dust collection box, at least two draught fans and at least two dust collection cylinders, the draught fans correspond to the dust collection cylinders one by one, the draught fans are arranged at the tops of the dust collection cylinders, each dust collection cylinder is provided with an air inlet pipe, all the air inlet pipes are positioned at the same side, and all the dust collection cylinders are communicated with the dust collection box; the dust discharge port of the dust collection box is communicated with the feed port of the granulator. Can retrieve the ammonium phosphate in the dust and return to the granulator through designing dust removal mechanism, design the scrubber can retrieve ammonia, the residual dust in the dust, greatly reduced the dust of production field, guaranteed the clean health of site environment, also reduced the running cost, reduced the investment simultaneously. The equipment is simple to operate and easy to control, and is convenient for workers to maintain and overhaul.
Description
Technical Field
The utility model relates to a phosphorus ammonium production technical field, concretely relates to dust recovery unit in phosphorus ammonium granulation.
Background
The granulator is key equipment in ammonium phosphate particle production, ammonium phosphate slurry is cooled and dried to form particles in the falling process through natural ventilation or mechanical forced ventilation, and more ammonium phosphate dust is generated in the granulator due to physical, chemical and other reasons in the process. Most of the ammonium phosphate dust falls on the nearby ground, corrodes roads and buildings, harms part of crop growth, pollutes the surrounding environment and carries the ammonium phosphate dust, causes product waste and increases the production cost consumption. The problem of environmental pollution caused by dust emission in ammonium phosphate granulation is a technical problem which puzzles various production enterprises for a long time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dust recovery unit in ammonium phosphate granulation to the above-mentioned not enough of prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a dust recovery device in ammonium phosphate granulation, which comprises a dust collection fan, a dust removal mechanism, a washer and an evacuation chimney,
the dust removal mechanism comprises a dust collection box, at least two draught fans and at least two dust removal cylinders, the draught fans correspond to the dust removal cylinders one by one, the draught fans are arranged at the tops of the dust removal cylinders, each dust removal cylinder is provided with an air inlet pipe, all the air inlet pipes are positioned on the same side, and all the dust removal cylinders are communicated with the dust collection box; the dust discharge port of the dust collection box is communicated with the feed port of the granulator;
the inlet of the dust collection fan is communicated with the outlet of the bucket elevator, the outlet of the dust collection fan is communicated with all the air inlet pipes, all the air outlets of the dust collection cylinder are communicated with the inlet of the scrubber, and the outlet of the scrubber is communicated with the inlet of the evacuation chimney.
Furthermore, one end of the air inlet pipe extends to be spirally wound on the inner wall of the dust removing cylinder, and the other end of the air inlet pipe is arranged on the outer wall of the top of the dust removing cylinder.
Further, the dust collection box is arranged right below all the dust removal cylinders.
Furthermore, the dust collection box is conical, and a probe is arranged on the inner wall of the dust collection box.
Furthermore, the dust collection fan comprises an air box, a driving motor and dust collection fan blades, the driving motor and the dust collection fan blades are arranged in the air box, an output shaft of the driving motor is connected with a transmission shaft, one end of the transmission shaft is connected with the output shaft of the driving motor, the other end of the transmission shaft is connected with the dust collection fan blades in a transmission mode, an inlet of the air box is communicated with an outlet of the bucket elevator, and an outlet of the air box is communicated with all air inlet pipes.
Furthermore, a dust discharge port of the dust collection box is communicated with the feed port of the granulator through a screw conveyor, the feed port of the screw conveyor is communicated with the dust discharge port of the dust collection box, and a discharge port of the screw conveyor is communicated with the feed port of the granulator.
Furthermore, the scrubber comprises a vapor-liquid separation tower, the exhaust ports of all the dust removing cylinders are communicated with the inlet of the vapor-liquid separation tower, and the gas outlet of the vapor-liquid separation tower is communicated with the inlet of the evacuation chimney.
Compared with the prior art, the utility model provides a beneficial effect that technical scheme brought is:
the utility model provides a dust recovery device in ammonium phosphate granulation, including dust collection fan, dust removal mechanism, scrubber and evacuation chimney, dust removal mechanism includes dust collection box, at least two draught fans and at least two dust removal cylinders, the draught fans correspond to the dust removal cylinders one by one, the draught fans are arranged on the top of the dust removal cylinders, each dust removal cylinder is provided with an air inlet pipe, all air inlet pipes are located on the same side, all dust removal cylinders are communicated with the dust collection box; the dust discharge port of the dust collection box is communicated with the feed port of the granulator. Can retrieve the ammonium phosphate in the dust and return to the granulator through designing dust removal mechanism, design the scrubber can retrieve ammonia, the residual dust in the dust, greatly reduced the dust in production field, guaranteed the clean health of site environment, also reduced the running cost, reduced the investment simultaneously. The equipment is simple to operate and easy to control, and is convenient for workers to maintain and overhaul.
Drawings
Fig. 1 is the utility model discloses a dust recovery unit in ammonium phosphate granulation.
1. A dust collecting fan; 11. a bellows; 12. a drive motor; 13. dust collection fan blades; 2. a dust removal mechanism; 21. a dust collection box; 211. a probe; 22. an induced draft fan; 23. a dust removal cylinder; 24. an air inlet pipe; 25. an exhaust port; 3. a washer; 31. a vapor-liquid separation column; 4. evacuating the chimney; 5. a granulator; 6. a bucket elevator; 7. a screw conveyor.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the utility model discloses a dust recovery device in ammonium phosphate granulation, including dust collection fan 1, dust removal mechanism 2, scrubber 3 and evacuation chimney 4, dust removal mechanism 2 includes dust collection box 21, at least two draught fans 22 and at least two dust collection cylinder 2, draught fan 22 and dust collection cylinder one-to-one, draught fan 22 sets up at the top of dust collection cylinder 23, every dust collection cylinder 23 is provided with air-supply line 24, all air-supply lines 24 are located same one side, all dust collection cylinders 23 all communicate with dust collection box 21; the dust discharge port of the dust collection box 21 is communicated with the feed port of the granulator 5, the inlet of the dust collection fan 1 is communicated with the outlet of the bucket elevator 6, the outlet of the dust collection fan 1 is communicated with all air inlet pipes 24, the air exhaust ports 25 of all dust removal cylinders 23 are communicated with the inlet of the scrubber 3, and the outlet of the scrubber 3 is communicated with the inlet of the evacuation chimney 4. By designing the dust removal mechanism, ammonium phosphate in the dust can be recovered and returned to the granulator, and the multiple dust removal cylinders realize multi-stage dust removal and have high efficiency; and a plurality of dust removal barrels can be combined differently, the number and the position arrangement of the dust removal barrels can be arranged according to the requirements of dust removal power and the arrangement of product space, and the dust removal device is very flexible and practical. The scrubber can recover ammonia in the dust, thereby greatly reducing the dust in the production field, ensuring the cleanness and sanitation of the field environment, reducing the operation cost and simultaneously reducing the investment. And the device is simple to operate and easy to control, and is convenient for workers to maintain and overhaul.
In some embodiments, in order to ensure that the centrifugal force given to the dust particles by the airflow movement is large enough to collect the finer dust particles, one end of the air inlet pipe 24 may extend and be spirally wound on the inner wall of the dust removing cylinder 23, and the other end of the air inlet pipe 24 may be disposed on the top outer wall of the dust removing cylinder 23, so as to facilitate the formation of cyclone in the dust removing cylinder 23, promote the rapid flow of the air flow, and improve the working efficiency of dust removal.
In some embodiments, the cross-section of the air inlet duct 24 may be rectangular for dust separation and settling within the dust collection canister, with high dust collection efficiency.
In some embodiments, to reduce energy consumption, the dust box 21 may be disposed directly below all of the dust removing cylinders 23.
In some embodiments, in order to prevent dust and facilitate the operation of workers, the dust box 21 may have a conical shape, and the inner wall of the dust box may be further provided with a probe 211, and the probe 211 may monitor the height of the ammonium phosphate dust in the dust box 21, and may send an alarm signal to the workers when the dust box 21 is overfilled.
In some embodiments, in order to effectively collect dust and prevent dust from flying, the dust collection fan 1 may include a wind box 11, a driving motor 12 and a dust collection fan blade 13, the driving motor 12 and the dust collection fan blade 13 are disposed in the wind box 11, an output shaft of the driving motor 12 is connected to a transmission shaft, one end of the transmission shaft is connected to the output shaft of the driving motor, the other end of the transmission shaft is connected to the dust collection fan blade 13, an inlet of the wind box 11 is communicated with an outlet of the bucket elevator 6, and an outlet of the wind box 11 is communicated with all of the air inlet pipes 24.
In some embodiments, in order to efficiently return the recovered ammonium phosphate dust to the granulator, the dust discharge port of the dust collection box 21 may be in communication with the feed port of the granulator 5 via the screw conveyor 7, the feed port of the screw conveyor 7 is in communication with the dust discharge port of the dust collection box 21, and the discharge port of the screw conveyor 7 is in communication with the feed port of the granulator 5.
In some embodiments, in order to exhaust the tail gas for meeting the environmental requirements and recovering the ammonia gas, the scrubber 3 may include a vapor-liquid separation tower 31, the exhaust ports 25 of all the dust removing cylinders 23 are communicated with the inlet of the vapor-liquid separation tower 31, and the gas outlet of the vapor-liquid separation tower 31 is communicated with the inlet of the evacuation chimney 4.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and not limitation, as various modifications or additions may be made to the described specific embodiments or alternatives thereto, as will be apparent to those skilled in the art, without departing from the scope of the invention or exceeding the scope of the claims. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. A dust recovery device in ammonium phosphate granulation is characterized by comprising a dust collection fan (1), a dust removal mechanism (2), a scrubber (3) and an evacuation chimney (4),
the dust removal mechanism (2) comprises a dust collection box (21), at least two induced draft fans (22) and at least two dust removal cylinders (23), the induced draft fans (22) correspond to the dust removal cylinders (23) one by one, the induced draft fans (22) are arranged at the tops of the dust removal cylinders (23), each dust removal cylinder (23) is provided with an air inlet pipe (24), all the air inlet pipes (24) are located on the same side, and all the dust removal cylinders (23) are communicated with the dust collection box (21); the dust discharge port of the dust collection box (21) is communicated with the feed port of the granulator (5);
the inlet of the dust collection fan (1) is communicated with the outlet of the bucket elevator (6), the outlet of the dust collection fan (1) is communicated with the air inlet pipe (24), the air outlet (25) of the dust collection cylinder (23) is communicated with the inlet of the scrubber (3), and the outlet of the scrubber (3) is communicated with the inlet of the emptying chimney (4).
2. The dust recovery device in ammonium phosphate granulation as set forth in claim 1, wherein one end of said air inlet pipe (24) is extended and spirally wound on the inner wall of said dust-removing cylinder (23), and the other end of said air inlet pipe (24) is disposed on the top outer wall of said dust-removing cylinder (23).
3. A dust recovery apparatus in ammonium phosphate granulation as defined in claim 2, wherein said air inlet duct (24) has a rectangular cross-section.
4. A dust recovery apparatus in ammonium phosphate granulation as defined in claim 2, wherein said dust collection box (21) is disposed right below all said dust collection cylinders (23).
5. A dust recovery device in ammonium phosphate granulation as claimed in claim 2, characterized in that said dust collection box (21) is conical, and the inner wall is provided with a probe (211).
6. The device for recovering dust in ammonium phosphate granulation according to claim 1, wherein the dust collection fan (1) comprises an air box (11), a driving motor (12) and dust collection fan blades (13), the driving motor (12) and the dust collection fan blades (13) are arranged in the air box (11), an output shaft of the driving motor (12) is connected with a transmission shaft, one end of the transmission shaft is connected with the output shaft of the driving motor, the other end of the transmission shaft is connected with the dust collection fan blades (13), an inlet of the air box (11) is communicated with an outlet of the bucket elevator (6), and an outlet of the air box (11) is communicated with all the air inlet pipes (24).
7. A dust recovery device in ammonium phosphate granulation as defined in claim 1, wherein the dust outlet of the dust collection box (21) is communicated with the feed inlet of the granulator (5) through a screw conveyor (7), the feed inlet of the screw conveyor (7) is communicated with the dust outlet of the dust collection box (21), and the discharge outlet of the screw conveyor (7) is communicated with the feed inlet of the granulator (5).
8. A dust recovery device in ammonium phosphate granulation as set forth in claim 1, characterized in that said scrubber (3) comprises a vapor-liquid separation tower (31), the exhaust ports (25) of all the dust-removing cylinders (23) are communicated with the inlet of the vapor-liquid separation tower (31), and the gas outlet of the vapor-liquid separation tower (31) is communicated with the inlet of the evacuation chimney (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951194.XU CN218421833U (en) | 2022-07-25 | 2022-07-25 | Dust recovery device in ammonium phosphate granulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951194.XU CN218421833U (en) | 2022-07-25 | 2022-07-25 | Dust recovery device in ammonium phosphate granulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218421833U true CN218421833U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221951194.XU Active CN218421833U (en) | 2022-07-25 | 2022-07-25 | Dust recovery device in ammonium phosphate granulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218421833U (en) |
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2022
- 2022-07-25 CN CN202221951194.XU patent/CN218421833U/en active Active
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