CN217303511U - A drying-machine system for drying ardealite - Google Patents
A drying-machine system for drying ardealite Download PDFInfo
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- CN217303511U CN217303511U CN202221134315.1U CN202221134315U CN217303511U CN 217303511 U CN217303511 U CN 217303511U CN 202221134315 U CN202221134315 U CN 202221134315U CN 217303511 U CN217303511 U CN 217303511U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The patent relates to a dryer system for drying phosphogypsum, which is used for drying phosphogypsum. The technical scheme adopted by the invention is as follows: the utility model discloses a drying-machine system for drying phosphogypsum, including drying-machine, feed mechanism, dust collector and steam buffer tank, the feed mechanism sets up steel grating, measurement conveyer and material loading conveyer in proper order; the tail part of the dryer is provided with a feeding hole, the head part of the dryer is provided with a discharging hole, a feeding machine is arranged at the discharging hole, and the feeding machine is arranged at the rear part of a feeding conveyor of the feeding mechanism; the dust removing device comprises a spiral dust remover and a multi-stage cloth bag dust remover. The steam outlet of the steam buffer tank is communicated with the discharge port end of the dryer through a steam pipeline, and the steam pipeline is provided with an electric regulating valve, a temperature sensor, a flow meter and a pressure sensor. The utility model has the advantages that: the drying efficiency of the dryer is controlled by setting feedback signals such as temperature and pressure on the steam supply pipeline, so that the effects of saving energy and prolonging the service life of the dryer are achieved.
Description
Technical Field
The patent relates to a dryer system for drying phosphogypsum, which is used for drying phosphogypsum.
Background
Because the components of the waste phosphogypsum are complex, the components of different phosphogypsum of each batch are greatly different, each device cannot be monitored in time in the process of drying the phosphogypsum in the production process, or the production line can be caused to operate unstably due to nonstandard operation of workers during temperature adjustment, so that a series of problems of unstable quality, low yield, high energy consumption and the like of the dried phosphogypsum are solved.
The feeding mode in the ardealite drying is an important factor for ensuring the yield and the quality, and especially for a gypsum dryer, because too much feeding is carried out, the temperature of the dryer is reduced, the temperature fluctuation is large, and qualified gypsum powder is difficult to dry. Meanwhile, the temperature of the dryer is increased due to too little feeding, and the gypsum powder is easy to over-burn.
The modern industry has strict requirements on feeding in order to improve the product percent of pass, the feeding fluctuation is smaller and smaller, and the feeding fluctuation is strictly controlled within a certain range. The task of automatic feed adjustment is to maintain the dryer temperature within a certain range. The main factors causing the temperature change of the dryer are the feeding change, the change of the steam flow, and the change of the temperature and the pressure of the steam. When the fluctuation range of the steam is large, the feeding amount is changed along with the fluctuation range of the steam, and the manual feeding can not meet the production requirement.
The traditional control mode is that the steam feeding amount is manually adjusted according to the discharging temperature, so that the temperature fluctuation is inevitably large, the worker is tired due to long-term operation, and hidden troubles are brought to production. If various production data are fed back in time, the production temperature is monitored in real time by using the controller, and the steam input quantity is adjusted by the controller through the preset control target temperature, so that the constant discharge temperature is realized, and the manual intervention adjustment is not needed.
Disclosure of Invention
This patent relates to adopts the drying-machine system that is used for drying the ardealite, solves and adopts superheated steam stoving gypsum production and control problem.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model relates to a dryer system for drying phosphogypsum, which comprises a dryer,
the feeding mechanism is sequentially provided with a steel grating, a metering conveyor and a feeding conveyor;
the tail part of the dryer is a feeding hole, the head part of the dryer is a discharging hole, a feeding machine is arranged at the discharging hole, and the feeding machine is arranged at the rear part of a feeding conveyor of the feeding mechanism;
the dust removal device comprises a spiral dust remover and a multi-stage bag dust remover, the spiral dust remover is communicated above a discharge port of the dryer, the multi-stage bag dust remover is communicated with an upper gas outlet of the spiral dust remover, a chain conveyor is arranged at the discharge port of the dryer, a lower dust removal port of the spiral dust remover and a lower dust removal port of the multi-stage bag dust remover, and the tail end of the chain conveyor is connected to the finished product bin;
the steam buffer tank, the steam outlet of steam buffer tank passes through steam conduit and communicates in drying-machine discharge gate end, is equipped with electrical control valve, temperature sensor, flowmeter, pressure sensor on the steam conduit.
Preferably, the dryer further comprises a water storage tank and a heat exchanger, a water inlet of the water storage tank and a supplementary steam outlet of the buffer tank are respectively communicated with a water outlet and a supplementary steam inlet of the heat exchanger through pipelines, and the heat exchanger is arranged at a feed inlet at the tail part of the dryer.
Preferably, a water return pipeline is arranged between the water inlet of the water storage tank and the outlet of the heat exchanger, a supplementary steam pipeline is arranged between the inlet of the heat exchanger and the supplementary steam outlet of the steam buffer tank, a temperature sensor is arranged on the water return pipeline, and a temperature sensor, a pressure transmitter and a flowmeter are arranged on the supplementary steam pipeline.
Preferably, the heat exchanger is provided with a blower fan, and the blower fan blows hot air exchanged by the heat exchanger into the dryer.
Preferably, the steam buffer tank is provided with a temperature sensor, a pressure transmitter and a safety valve.
Preferably, the feeding mechanism further comprises a feeding hopper and a secondary screen, the steel grating is located at a feeding port of the feeding hopper, a metering conveyor is arranged at an outlet of the feeding hopper, the secondary screen is arranged at the tail end of the metering conveyor, the feeding conveyor is arranged at the lower portion of the secondary screen, a buffer bin is arranged at the tail end of the feeding conveyor, a feeding machine is arranged at a discharging port of the buffer bin, and a shaftless screw of the drying machine is arranged at an outlet of the feeding machine.
Preferably, the tail end of the chain conveyor is provided with a hoisting machine, the outlet of the hoisting machine is provided with a vibrating screen, the outlet of the vibrating screen is provided with the finished product bin, and the finished product bin is internally provided with a finished product bin high material level and a finished product bin low material level.
The utility model has the advantages of: the drying efficiency of the dryer is controlled by setting feedback signals such as temperature and pressure on the steam supply pipeline, and the effects of saving energy and prolonging the service life of the dryer are achieved.
The temperature in the dryer is in a balanced state by controlling the direct supply and the steam supplement, the temperature of the dryer is in a set value, the fluctuation is small, the product quality is stable, and the product quality is improved. The temperature and pressure sensors can be set with parameter setting alarm to remind operators to pay attention to corresponding parameters, so that accident potential can be found as soon as possible, accidents are reduced, and the safety of the system is improved.
The system completes most of the work originally completed by operators, such as adjusting feeding, steam valve opening control, timing operation data recording and the like, by the sensors, and the labor intensity of the work is greatly reduced.
Drawings
Fig. 1 is an overall structure diagram of the present invention.
Reference numerals:
1. a steel grating, 2, a feeding hopper, 3, a metering belt, 4, a sieve, 5, a feeding conveyor, 6, a buffer bin, 7, a feeder, 8, a shaftless screw, 9, a heat exchanger, 10, a fan supplementing machine, 11, a dryer discharge end temperature sensor, 12, a dryer, 13, a discharge feeder, 14, a dryer feed end temperature sensor, 15, a dryer feed end pressure sensor, 16, a cyclone dust removing feeder, 17, an air distribution valve, 18, a bag dust remover, 19, a dust removing temperature sensor, 20, a dust removing fan, 21, a chimney, 22, a bag dust removing, 25, a dust removing conveyor, 26, a lifter, 27, a vibrating screen, 28, a bin, 29, a bin high material level, 30, a bin low material level, 31, a chain conveyor, 32, a steam inlet pipe temperature sensor, 33, a return water temperature sensor, 34 and a return water pressure feeder, 35. a backwater flow meter, 36, a buffer tank temperature sensor, 37, a buffer tank pressure transmitter, 38, a buffer tank, 39, an electric regulating valve, 40, a steam supply temperature sensor, 41, a steam supply flow meter, 42, a steam supply pressure sensor, 43, a backwater temperature sensor, 44, a water storage tank, 45 and a safety valve.
Detailed Description
The specific structure of the present invention is further described below:
the utility model is used for drying-machine system of ardealite, including drying-machine, feed mechanism, dust collector and steam buffer tank.
As shown in fig. 1, the feeding mechanism comprises a steel grating, a feeding hopper, a metering conveyor, a secondary screen and a feeding conveyor, the steel grating is arranged at a feeding port of the feeding hopper, the metering conveyor is arranged at an outlet of the feeding hopper, the secondary screen is arranged at the tail end of the metering conveyor, the feeding conveyor is arranged at the lower part of the secondary screen, a buffer bin is arranged at the tail end of the feeding conveyor, a feeding machine is arranged at a discharging port of the buffer bin, and an outlet of the feeding machine is a shaftless screw of the drying machine.
Steel grating and secondary sieve among the feed mechanism carry out screening selection to the material, avoid in the material of off-specification gets into the drying-machine. The feeding hopper and the metering conveyor are matched for feeding and metering, the feeding hopper can slowly release materials, and inaccurate metering caused by direct stacking on the metering conveyor is avoided.
The material loading conveyer gathers the material from the low buffer bin of carrying high, and buffer bin control feed speed guarantees that the material in the drying-machine is in reasonable quantity state, improves the stoving speed, and the material is too much or the stoving that leads to too little is inhomogeneous.
The afterbody of drying-machine is the feed inlet, and the head is the discharge gate, and the feed inlet goes out to set up the batcher, and the batcher is carried the material in the shaftless spiral of drying-machine. A dryer temperature sensor and a dryer pressure sensor are arranged at a discharge port of the dryer, the temperature and the steam pressure at the outlet position are monitored, data reference is improved for production, and the running state is monitored. The steam pipeline is communicated with a discharge hole of the dryer and provides a drying heat source for the dryer. The discharging port of the dryer is provided with a discharging feeder to control the discharging speed.
The discharge gate position of drying-machine sets up dust collector, specifically includes spiral dust remover and multistage sack cleaner, and spiral dust remover communicates in the discharge gate top of drying-machine, and multistage sack cleaner communicates in the upper portion gas outlet of spiral dust remover, and the discharge gate of drying-machine, the lower part dust removal mouth of spiral dust remover and the lower part dust removal mouth of multistage sack cleaner set up chain conveyor. The gas outlet of the multi-stage bag-type dust remover is provided with a dust removal fan and a chimney, a spiral exhaust pipeline is arranged between the spiral dust remover and the dust removal fan, the spiral exhaust pipeline avoids that the whole dust removal can not work normally when the multi-stage bag-type dust remover is in fault or in a maintenance stage, and the spiral exhaust pipeline can be used as a standby gas outlet pipeline for spiral dust removal.
The utility model provides a device of steam is the steam buffer tank, is equipped with temperature sensor, pressure transmitter and relief valve on the steam buffer tank. The steam outlet of the steam buffer tank is communicated with the discharge port end of the dryer through a steam pipeline, and the steam pipeline is provided with an electric regulating valve, a temperature sensor, a flow meter and a pressure sensor. The electric regulating valve of the steam pipeline is provided with a redundant pipeline which is connected in parallel, and the redundant pipeline is provided with a manual regulating valve so as to be used when the electric regulating valve is in fault and avoid the whole steam supply pipeline from being broken.
The dryer is exposed to the environment at the feed inlet where additional steam is required for drying. The supplementary mode is to set up heat exchanger and corresponding supplementary fan, provides steam by the steam buffer tank in the heat exchanger, then supplyes the fan and blows in hot-blast feed inlet position of drying-machine. The steam in the heat exchanger is condensed into water after heat exchange, and a water outlet tank is required to be additionally arranged.
The water inlet of concrete water storage tank and the supplementary steam outlet of buffer tank communicate respectively in the delivery port of heat exchanger and supplementary steam inlet through the pipeline, be the return water pipeline between the water inlet of water storage tank and the heat exchanger export, set up the supplementary steam pipeline between the supplementary steam outlet of heat exchanger import and steam buffer tank, set up temperature sensor on the return water pipeline, supplementary steam pipeline sets up temperature touch sensor, pressure transmitter, flowmeter.
The tail ends of the discharging feeder and the chain conveyor are connected to the elevator through the transshipment conveyor, the outlet of the elevator is a vibrating screen, the outlet of the vibrating screen is a finished product bin, and a finished product bin high material level and a finished product bin low material level are arranged in the finished product bin. The finished product storehouse is used for storing the finished product material.
Claims (7)
1. A dryer system for drying phosphogypsum comprises a dryer and is characterized by comprising,
the feeding mechanism is sequentially provided with a steel grating, a metering conveyor and a feeding conveyor;
the tail part of the dryer is a feeding hole, the head part of the dryer is a discharging hole, a feeding machine is arranged at the discharging hole, and the feeding machine is arranged at the rear part of a feeding conveyor of the feeding mechanism;
the dust removal device comprises a spiral dust remover and a multi-stage bag dust remover, the spiral dust remover is communicated above a discharge port of the dryer, the multi-stage bag dust remover is communicated with an upper gas outlet of the spiral dust remover, a chain conveyor is arranged at the discharge port of the dryer, a lower dust removal port of the spiral dust remover and a lower dust removal port of the multi-stage bag dust remover, and the tail end of the chain conveyor is connected to the finished product bin;
the steam buffer tank, the steam outlet of steam buffer tank passes through steam conduit and communicates in drying-machine discharge gate end, is equipped with electrical control valve, temperature sensor, flowmeter, pressure sensor on the steam conduit.
2. The dryer system for drying phosphogypsum as claimed in claim 1, which further comprises a water storage tank and a heat exchanger, wherein a water inlet of the water storage tank and a supplementary steam outlet of the buffer tank are respectively communicated with a water outlet and a supplementary steam inlet of the heat exchanger through pipelines, and the heat exchanger is arranged at a feed inlet at the tail part of the dryer.
3. The dryer system for drying phosphogypsum according to claim 2, wherein a water return pipeline is arranged between the water inlet of the water storage tank and the outlet of the heat exchanger, a supplementary steam pipeline is arranged between the inlet of the heat exchanger and the supplementary steam outlet of the steam buffer tank, a temperature sensor is arranged on the water return pipeline, and a temperature sensor, a pressure transmitter and a flowmeter are arranged on the supplementary steam pipeline.
4. The dryer system for drying phosphogypsum as claimed in claim 2, wherein a supplementary air blower is arranged at the heat exchanger and blows hot air exchanged by the heat exchanger into the dryer.
5. The dryer system for drying phosphogypsum according to claim 1, wherein a temperature sensor, a pressure transmitter and a safety valve are arranged on the steam buffer tank.
6. The dryer system for drying phosphogypsum according to claim 1, wherein the feeding mechanism further comprises a feeding hopper and a secondary screen, the steel grating is arranged at the feeding port of the feeding hopper, the outlet of the feeding hopper is provided with a metering conveyor, the secondary screen is arranged at the tail end of the metering conveyor, the lower part of the secondary screen is the feeding conveyor, the tail end of the feeding conveyor is a buffer bin, the discharging port of the buffer bin is provided with a feeder, and the outlet of the feeder is a shaftless screw of the dryer.
7. The dryer system for drying phosphogypsum according to claim 1, wherein the tail end of the chain conveyor is provided with a hoister, the outlet of the hoister is provided with a vibrating screen, the outlet of the vibrating screen is provided with the finished product bin, and the finished product bin is internally provided with a finished product bin high material level and a finished product bin low material level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221134315.1U CN217303511U (en) | 2022-05-12 | 2022-05-12 | A drying-machine system for drying ardealite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221134315.1U CN217303511U (en) | 2022-05-12 | 2022-05-12 | A drying-machine system for drying ardealite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217303511U true CN217303511U (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221134315.1U Active CN217303511U (en) | 2022-05-12 | 2022-05-12 | A drying-machine system for drying ardealite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217303511U (en) |
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2022
- 2022-05-12 CN CN202221134315.1U patent/CN217303511U/en active Active
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