CN214582323U

CN214582323U - Environment-friendly phosphorus ore drying device

Info

Publication number: CN214582323U
Application number: CN202120498996.9U
Authority: CN
Inventors: 王涛; 艾余光峻; 杨秦心; 余坤林
Original assignee: Yichang Longdongwan Mining Co ltd
Current assignee: Yichang Longdongwan Mining Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-11-02
Anticipated expiration: 2031-03-09

Abstract

The utility model provides an environment-friendly phosphorus ore drying device, including guipure transport dryer and gas boiler, be equipped with many finned tubes in the guipure transport dryer, each finned tube both ends communicate with inlet manifold and exhaust manifold respectively, be equipped with a plurality of air inlets at guipure transport dryer lower extreme, install a plurality of air blowers in guipure transport dryer upper end, air exhauster upper end and gas bag intercommunication, the gas bag pass through the pipeline in proper order with cyclone, phosphorus removal device, catch water and gas boiler air intake intercommunication, gas boiler steam outlet passes through pipeline and inlet manifold intercommunication. The utility model discloses can realize when dry to the phosphorus ore, purify the emission to the dust and the waste gas of dry production.

Description

Environment-friendly phosphorus ore drying device

Technical Field

The utility model relates to an environment-friendly phosphorus ore drying device.

Background

The phosphorus ore is generally stored in an open-air stacking mode, the phosphorus ore needs to be dried before yellow phosphorus is processed by an electric furnace method, so that the moisture of the phosphorus ore meets the process requirement, the existing drying adopts a mesh belt type conveying dryer or a drum dryer, the phosphorus ore can generate more dust and waste gas in the drying process, and the direct discharge can pollute the environment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an environment-friendly phosphorus ore drying device, can realize the dry while of phosphorus ore, purify the emission to the dust and the waste gas of dry production.

In order to solve the above problem, the to-be-solved technical scheme of the utility model is:

the utility model provides an environment-friendly phosphorus ore drying device, including guipure transport dryer and gas boiler, be equipped with many finned tubes in the guipure transport dryer, each finned tube both ends communicate with inlet manifold and exhaust manifold respectively, be equipped with a plurality of air inlets at guipure transport dryer lower extreme, install a plurality of air blowers in guipure transport dryer upper end, air exhauster upper end and gas bag intercommunication, the gas bag pass through the pipeline in proper order with cyclone, phosphorus removal device, catch water and gas boiler air intake intercommunication, gas boiler steam outlet passes through pipeline and inlet manifold intercommunication.

The dephosphorization device comprises an alkaline solution tank, the alkaline solution tank is communicated with a dephosphorization pipe and a mist discharge pipe, a plurality of nozzles are arranged in the dephosphorization pipe, the nozzles are communicated with the lower end of the alkaline solution tank through a spray branch pipe and a spray header pipe, a filter and an infusion pump are arranged on the spray header pipe, and the bottom of the steam-water separator is communicated with the alkaline solution tank through a pipeline.

The upper end and the lower end of the alkali liquor tank are respectively communicated with a liquor inlet pipe and a blow-off pipe, electromagnetic valves are respectively arranged on the liquor inlet pipe and the blow-off pipe, a liquid level sensor and a pH value sensor are arranged on the alkali liquor tank pipe, the liquid level sensor and the pH value sensor are connected with the input end of a controller, and the electromagnetic valves and the infusion pump are connected with the output end of the controller.

The utility model has the advantages that: carry out the drying to the phosphorus ore through the guipure conveying desiccator, the dust in the dry tail gas that produces is tentatively got rid of by cyclone, and the tail gas of remaining a small amount of dust then purifies the emission by phosphorus removal device, and the gas boiler that the tail gas after the purification then sent into burns once more, thoroughly eliminates the harmful substance in the waste gas, and harmless emission when realizing the phosphorus ore drying is friendly to the environment.

Drawings

The invention will be further explained with reference to the drawings:

figure 1 is a schematic structural diagram of the present invention,

fig. 2 is an electrical schematic diagram of the present invention.

In the figure: the device comprises a controller 1, an air inlet main pipe 2, a cyclone separator 3, a phosphorus removal device 4, a steam-water separator 5, a gas boiler 6, an air inlet 7, an exhaust main pipe 8, a finned tube 9, a mesh belt conveying dryer 10, an exhaust fan 11, an air bag 12, a phosphorus removal pipe 40, a mist discharge pipe 41, a liquid inlet pipe 42, an electromagnetic valve 43, a sewage discharge pipe 44, a Ph value sensor 45, an alkali liquor tank 46, a liquid level sensor 47, an infusion pump 48 and a nozzle 49.

Detailed Description

As shown in fig. 1 and 2, an environment-friendly phosphate rock drying device comprises a mesh belt conveying dryer 10 and a gas boiler 6, wherein a plurality of finned tubes 9 are arranged in the mesh belt conveying dryer, two ends of each finned tube 9 are respectively communicated with an air inlet main pipe 2 and an air outlet main pipe 8, a plurality of air inlets 7 are arranged at the lower end of the mesh belt conveying dryer 10, a plurality of exhaust fans 11 are arranged at the upper end of the mesh belt conveying dryer 10, the upper ends of the exhaust fans 11 are communicated with an air bag 12, the air bag 12 is sequentially communicated with a cyclone separator 3, a phosphorus removal device 4, a steam-water separator 5 and an air inlet of the gas boiler 6 through pipelines, and a steam outlet of the gas boiler 6 is communicated with the air inlet main pipe 2 through a pipeline.

The utility model discloses a working process does: steam discharged by the gas boiler 6 enters the finned tubes 9 through the air inlet main pipe 2 to be discharged, the finned tubes 9 provide heat sources for phosphate ore in the mesh belt conveying dryer 10, meanwhile, the mesh belt conveying dryer 10 conveys the phosphate ore to move forward, the exhaust fan 11 extracts the phosphate ore drying tail gas to enter the cyclone separator 3, most of dust of the phosphate ore tail gas is removed by the cyclone separator 3 and then is sent into the phosphorus removal device 4, harmful gas and a small amount of dust in the tail gas are removed by the phosphorus removal device 4, finally, the tail gas after being dewatered by the steam-water separator 5 is sent into the gas boiler 6 to be combusted, harmful substances in the phosphate ore drying tail gas are thoroughly eliminated, harmless emission during the drying of the phosphate ore is realized, and the environment friendliness is achieved.

The phosphorus removal device 4 comprises an alkali liquor tank 46, the alkali liquor tank 46 is communicated with a phosphorus removal pipe 40 and a mist discharge pipe 41, a plurality of nozzles 49 are arranged in the phosphorus removal pipe 40, the nozzles 49 are communicated with the lower end of the alkali liquor tank through a spray branch pipe and a spray header pipe, a filter and an infusion pump 48 are arranged on the spray header pipe, and the bottom of the steam-water separator 5 is communicated with the alkali liquor tank 46 through a pipeline. After the tail gas passes through the dephosphorization pipe 40, the infusion pump 48 sends alkali liquor to each nozzle 49 to be sprayed out, and acid gas in the phosphate rock drying tail gas is neutralized.

The upper end and the lower end of an alkali liquor tank 46 are respectively communicated with a liquor inlet pipe 42 and a sewage discharge pipe 44, electromagnetic valves 43 are respectively arranged on the liquor inlet pipe 42 and the sewage discharge pipe 44, a liquid level sensor 47 and a Ph value sensor 45 are arranged on the alkali liquor tank 46, the liquid level sensor 47 and the Ph value sensor 45 are connected with the input end of a controller, the electromagnetic valves 43 and a liquid conveying pump 48 are connected with the output end of the controller, the controller is an S7-200PLC controller, alkali liquor in the alkali liquor tank 46 is detected by the Ph value sensor 45 in real time, when the acid-alkali value of the alkali liquor in the alkali liquor tank 46 is lower than a preset value, the electromagnetic valves 43 on the sewage discharge pipe 44 of the controller are opened to empty the alkali liquor and the sludge, then the electromagnetic valves 43 on the liquor inlet pipe 42 are opened to fill new alkali liquor into the alkali liquor 46, meanwhile, the liquid level sensor 47 detects the alkali liquor filling amount, after the alkali liquor filling amount reaches the preset value, the electromagnetic valves 43 on the liquor inlet pipe 42 are closed, therefore, the automatic replacement of the alkali liquor in the alkali liquor tank 46 is realized, the labor intensity of workers is reduced, and the tail gas purification effect is improved.

Claims

1. The utility model provides an environment-friendly phosphorus ore drying device, includes guipure transport desiccator (10) and gas boiler (6), its characterized in that: be equipped with many finned tubes (9) in guipure transport dryer (10), each finned tube (9) both ends communicate with air intake manifold (2) and exhaust manifold (8) respectively, be equipped with a plurality of air inlets (7) at guipure transport dryer (10) lower extreme, install a plurality of air blowers (11) in guipure transport dryer (10) upper end, air blower (11) upper end and gas bag (12) intercommunication, gas bag (12) pass through the pipeline in proper order with cyclone (3), phosphorus removal device (4), catch water (5) and gas boiler (6) air intake intercommunication, gas boiler (6) steam outlet passes through pipeline and air intake manifold (2) intercommunication.

2. The environment-friendly phosphate rock drying device of claim 1, characterized in that: the phosphorus removal device (4) comprises an alkali liquor tank (46), the alkali liquor tank (46) is communicated with a phosphorus removal pipe (40) and a fog discharge pipe (41), a plurality of nozzles (49) are arranged in the phosphorus removal pipe (40), the nozzles (49) are communicated with the lower end of the alkali liquor tank (46) through a spray branch pipe and a spray header pipe, a filter and an infusion pump (48) are installed on the spray header pipe, and the bottom of the steam-water separator (5) is communicated with the alkali liquor tank (46) through a pipeline.

3. The environment-friendly phosphate rock drying device of claim 1 or 2, characterized in that: the upper end and the lower end of the lye tank (46) are respectively communicated with a liquid inlet pipe (42) and a sewage discharge pipe (44), electromagnetic valves (43) are respectively installed on the liquid inlet pipe (42) and the sewage discharge pipe (44), a liquid level sensor (47) and a Ph value sensor (45) are installed on the lye tank (46) pipe, the liquid level sensor (47) and the Ph value sensor (45) are connected with the input end of a controller, and the electromagnetic valves (43) and an infusion pump (48) are connected with the output end of the controller.