CN114669069A - Preparation method and preparation device of high-purity polyaluminium chloride water treatment agent - Google Patents
Preparation method and preparation device of high-purity polyaluminium chloride water treatment agent Download PDFInfo
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- CN114669069A CN114669069A CN202210388104.9A CN202210388104A CN114669069A CN 114669069 A CN114669069 A CN 114669069A CN 202210388104 A CN202210388104 A CN 202210388104A CN 114669069 A CN114669069 A CN 114669069A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/20—Sprayers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/56—Chlorides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
Abstract
The invention belongs to the technical field of water treatment, and particularly relates to a preparation method and a preparation device of a high-purity polyaluminium chloride water treatment agent, which comprises a drying tower main body, wherein an atomizing spray head is arranged outside the drying tower main body, a fixing frame is arranged above the inner wall of the drying tower main body, a plurality of filter cloth bags are arranged inside the fixing frame, limiting rods are arranged inside the filter cloth bags, and the limiting rods are fixedly connected with the fixing frame; drive the lift ring through updraft, slide on the gag lever post, thereby prevent that stifled ring can drive clean brush and scrape the brush to filtering the sack, like this alright effectually prevent that it from blockking up and leading to shutting down in the in-process of drying, the production efficiency of high-purity polyaluminium chloride has been improved, and it also can be effectual clears up the powder that is infected with on filtering the sack, prevent to filter remaining material when remaining the last drying on the sack, thereby the condition of compounding appears when leading to high-purity polyaluminium chloride dry, further improvement the purity of polyaluminium chloride.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a preparation method and a preparation device of a high-purity polyaluminium chloride water treatment agent.
Background
Polyaluminum chloride (PAC) is a new water treatment material, has the advantages of high hydrolysis speed, low effluent turbidity and the like, is widely used, and is often required to be prepared into polyaluminum chloride particles by a spray drying method in the preparation process of the polyaluminum chloride.
The chinese patent with publication number CN107117637B discloses a spray drier for producing polyaluminium chloride, including staving, feed liquor pipe, inlet manifold, main dish and the supplementary dish of spouting, the feed liquor pipe stretches into the staving top, and feed liquor pipe end connection atomizer, the staving top still is equipped with inlet manifold, inlet manifold and inlet manifold are connected, and inlet manifold end connection is assisted and is spouted the dish, staving lateral wall bottom also is equipped with inlet manifold, the inlet manifold tip is equipped with main dish of spouting, main dish of spouting is hemispherical, the staving bottom is equipped with the discharge gate, and this device hot-blast gas coverage is wide, and can adjust atomizer spraying range, can control the hot-blast gas intake.
When the existing spray dryer is used, part of powdery materials are inevitably taken away by hot air for drying when the hot air is discharged, the powdery materials need to be filtered and recovered in a cloth bag dust removal mode, the cloth bag is extremely easy to block when the equipment is used for too long time, shutdown maintenance is needed, the condition of mixing materials caused by other materials remained in the cloth bag can also occur, and the purity of polyaluminium chloride is further reduced; therefore, the invention provides a preparation method and a preparation device of a high-purity polyaluminium chloride water treatment agent.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the preparation device of the high-purity polyaluminium chloride water treatment agent comprises a drying tower main body, wherein an atomizing spray head is arranged outside the drying tower main body, a fixing frame is arranged above the inner wall of the drying tower main body, a plurality of filter cloth bags are arranged inside the fixing frame, limiting rods are arranged inside the filter cloth bags and fixedly connected with the fixing frame, lifting rings are sleeved outside the limiting rods, anti-blocking rings are rotatably connected outside the lifting rings, rotating fan blades are arranged above the anti-blocking rings, and cleaning brushes are arranged inside the anti-blocking rings; when the device works, in the process that air flows through the filter cloth bag and is discharged through the fixing frame, the ascending air flow blows the rotating fan blades to drive the anti-blocking ring to rotate, and the ascending air flow exerts upward force on the rotating fan blades to drive the lifting ring to slide on the limiting rod, in the process, the anti-blocking ring drives the cleaning brush to scrape the filter cloth bag, so that powder on the filter cloth bag is scraped off, the condition that the air flow is not smooth due to blockage of the filter cloth bag is prevented, in the process, the size of the air flow flowing into the filter cloth bag is also changed due to continuous change of the blockage condition of the powder on the filter cloth bag, the lifting ring can slide up and down in the filter cloth bag, the scraping area is changed, and the filter cloth bag can be effectively scraped in a multi-directional manner in the drying process to prevent the filter cloth bag from being blocked to stop, the production efficiency of high-purity polyaluminium chloride is improved, and the powder that is infected with on it also can be effectual to filtering the sack is cleared up, prevents to filter remaining material when the sack was last dry, thereby the condition of compounding appears when leading to high-purity polyaluminium chloride dry, further improvement polyaluminium chloride's purity.
Preferably, the inner part of the anti-blocking ring is slidably connected with a balancing weight, a return spring is fixed between the balancing weight and the anti-blocking ring, a telescopic block is fixed on one side of the balancing weight, which is far away from the return spring, and the telescopic block is fixedly connected with the cleaning brush; the during operation carries out the pivoted in-process at the gag lever post, and its inside balancing weight can receive the effect of centrifugal force to it can stretch out and draw back spring and make its deformation after promote the flexible piece motion, flexible piece motion and then drive the motion of clean brush, like this alright make the motion state of clean brush under different air current states different, thereby when filtering the sack comparatively unobstructed, the brush effect reinforcing is scraped to filtering the sack to clean brush, prevents in advance to filter the sack and the condition of jam appears.
Preferably, an elastic air bag is slidably connected inside the telescopic block, an elastic pull rope is fixed on one side of the inside of the elastic air bag, which is close to the balancing weight, and a balancing ball is fixed on one end of the elastic pull rope, which is far away from the elastic air bag; the during operation, when flexible piece appears the motion under the effect of centrifugal force, the inside counter weight ball of elasticity gasbag can stretch the elasticity stay cord under the effect of inertial force and centrifugal force, thereby pulling elasticity gasbag makes its deformation, and then make elasticity gasbag blowout air current, spun air current is discharged to filtering the sack through flexible piece, thereby carry out the back flush to it from filtering the inside of sack, further improvement to filtering the scraping brush effect of sack surface powder, improved the anti-blocking effect to filtering the sack, the production efficiency and the purity of high-purity polyaluminium chloride have further been improved.
Preferably, a plurality of floating ropes are fixed outside the telescopic block, and a striking ball is fixed at one end of each floating rope, which is far away from the telescopic block; during operation, in the process of the movement of the telescopic block, the floating rope and the knocking ball outside the telescopic block can also float in a reciprocating mode under the driving of airflow, so that the knocking ball can knock the filtering cloth bag in a reciprocating mode, powder attached to the surface falls off, and the cleaning effect on the powder on the outer surface of the filtering cloth bag is further improved.
Preferably, a counterweight magnetic ring is fixed below the lifting ring, a limiting frame is arranged below the counterweight magnetic ring, a steering lever is rotatably connected inside the limiting frame, and an impact ball is fixed at one end of the steering lever, which is close to the inner wall of the fixing frame; the during operation, when the large tracts of land powder blockked up appears in filter cloth bag surface, at this moment along with letting in the inside air current of filter cloth bag and weaken, the counter weight magnetic ring can drive the drop ring downstream under the effect of gravity, contact with the steering lever until the drop ring, the drop ring promotes its motion with steering lever contact back, thereby the steering lever can drive the impact ball and strike the mount, and then produce vibrations by a relatively large margin, this vibrations can be conducted to the filter cloth bag, thereby arouse the vibrations of filter cloth bag, if this vibrations are enough to shake the powder and then the air current can let in the filter cloth bag once more in, thereby equipment moves once more and need not shut down and clears up the filter cloth bag.
Preferably, a support ring is connected between the limit frame and the limit rod in a sliding manner, an alarm contact is fixed on one side of the support ring close to the limit frame, and a power-on contact is arranged on one side of the alarm contact close to the limit frame and is fixedly connected with the limit frame; during operation, in case when the condition of blocking up appears totally in filtering the sack, the counter weight magnetic ring at this moment can contact with the support ring to promote the support ring and slide downwards, thereby the support ring motion drives the motion of alarm contact, contacts until alarm contact and circular telegram contact, can send alarm signal after alarm contact and circular telegram contact, reminds staff's equipment to appear unusually, and the condition of damage probably appears in powder recovery mechanism.
Preferably, a buffer spring is fixed between the support ring and the fixing frame, and a buffer elastic sheet is fixed above the support ring; the during operation, buffer spring can cushion the counter weight magnetic ring with the design of buffering shell fragment, prevents that it from damaging to appear in the too big equipment that leads to of impact force under the effect of gravity, and buffer spring also can make the impact ball strike the vibrations that produce to the mount and last a period and can not strike the back and report to the police immediately simultaneously with the buffering of buffering shell fragment, filters the outside powder of sack in this period and also can shake and fall to equipment continues the operation.
Preferably, a powered magnet is fixed at the bottom end of the limiting rod, and the magnetism generated after the powered magnet is powered on is the same as the magnetism of one side, close to the powered magnet, of the counterweight magnetic ring; the during operation, in case after alarm contact and circular telegram contact, circular telegram magnet also can be the while circular telegram and produce magnetism, and then applys a repulsion to the counter weight magnetic ring to promote counter weight magnetic ring and lift ring operation, scrape the brush to filtering the sack, if scrape brush inefficacy then alarm contact can contact with circular telegram contact once more after a period, just can shut down when alarm contact contacts contact with circular telegram contact after once more.
Preferably, a cleaning shell is arranged below the atomizing nozzle, a follow-up magnetic plug is connected in the cleaning shell in a sliding manner, a cleaning spring is fixed between the follow-up magnetic plug and the cleaning shell, an anti-blocking brush rod is fixed on one side of the follow-up magnetic plug, which is far away from the cleaning spring, and a plurality of brush sheets are fixed on one side of the anti-blocking brush rod, which is close to the atomizing nozzle; during operation, the lifting ring moves the counter weight magnetic ring in the downward movement process after the filter cloth bag is blocked, under the action of magnetic force, the follow-up magnetic plug also can stretch the cleaning spring to make the deformation of the cleaning spring push the anti-blocking brush rod to move, thereby the anti-blocking brush rod moves to drive the brush piece to scrape the brush and block the atomizing nozzle, and the situation that the powder inside the drying tower main body is too much and cannot be discharged, so that the powder blocks the atomizing nozzle to cause the abnormal spraying of the high-purity polyaluminium chloride solution is prevented.
A preparation method of a high-purity polyaluminium chloride water treatment agent is suitable for any one preparation device of the high-purity polyaluminium chloride water treatment agent, and comprises the following steps:
s1, putting 100 parts of aluminum hydroxide into a reaction kettle, then adding 200-300 parts of concentrated hydrochloric acid into the reaction kettle, and stirring for 20-30 minutes;
s2, putting the reaction solution prepared in the step one into a transfer reaction kettle for heating and pressurizing, and preparing a polyaluminium chloride solution after reaction;
s3, placing the polyaluminum chloride solution into a centrifuge for centrifugal treatment, and taking supernatant to obtain high-purity polyaluminum chloride solution;
s4, putting the high-purity polyaluminium chloride solution into the drying tower main body for drying treatment, and effectively preventing the filter cloth bag from remaining dry substances in the last use through the mutual matching of the anti-blocking ring, the rotary fan blade and the cleaning brush, so that the purity of the polyaluminium chloride is further improved.
The invention has the following beneficial effects:
1. according to the preparation method and the preparation device of the high-purity polyaluminium chloride water treatment agent, the ascending air flow drives the lifting ring to slide on the limiting rod, so that the anti-blocking ring can drive the cleaning brush to scrape the filter cloth bag, the machine halt caused by blockage in the drying process can be effectively prevented, the production efficiency of the high-purity polyaluminium chloride is improved, the powder stained on the filter cloth bag can be effectively cleaned, the residual material in the previous drying process is prevented from remaining on the filter cloth bag, the mixed material condition is prevented from occurring in the drying process of the high-purity polyaluminium chloride, and the purity of the polyaluminium chloride is further improved.
2. According to the preparation method and the preparation device of the high-purity polyaluminium chloride water treatment agent, the follow-up magnetic plug is driven by magnetic force to stretch the cleaning spring to deform and then push the anti-blocking brush rod to move, the anti-blocking brush rod moves to drive the brush piece to move to scrape and block the atomizing nozzle, and the situation that the high-purity polyaluminium chloride solution cannot be normally sprayed due to the fact that the atomizing nozzle is blocked by excessive powder in the drying tower main body and cannot be discharged is prevented.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a perspective view of the main structure of a drying tower in the present invention;
FIG. 2 is a partial sectional view of the main structure of the drying tower according to the present invention;
FIG. 3 is a partial cross-sectional view of the structure of the holder of the present invention;
FIG. 4 is a partial cross-sectional view of the lift ring structure of the present invention;
FIG. 5 is an enlarged view of a portion of the invention at A in FIG. 3;
FIG. 6 is a schematic view of the cleaning housing of the present invention;
fig. 7 is a flow chart of the method of the present invention.
In the figure: 1. a drying tower main body; 2. an atomizing spray head; 3. a fixed mount; 4. a filter cloth bag; 5. a limiting frame; 6. a limiting rod; 7. a lifting ring; 8. an anti-blocking ring; 9. rotating the fan blade; 10. cleaning the brush; 11. a return spring; 12. a balancing weight; 13. a telescopic block; 14. an elastic air bag; 15. a counterweight ball; 16. an elastic pull rope; 17. a flying rope; 18. knocking and hitting the ball; 19. a counterweight magnetic ring; 20. a steering lever; 21. striking a ball; 22. a support ring; 23. a buffer spring; 24. a buffering elastic sheet; 25. an alarm contact; 26. a power-on contact; 27. energizing a magnet; 28. cleaning the shell; 29. a servo magnetic plug; 30. cleaning the spring; 31. an anti-blocking brush rod; 32. and (7) brushing sheets.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
As shown in fig. 1 to 4, the preparation apparatus for a high-purity polyaluminum chloride water treatment agent according to the embodiment of the invention comprises a drying tower main body 1, wherein an atomizing spray head 2 is installed outside the drying tower main body 1, a fixing frame 3 is installed above the inner wall of the drying tower main body 1, a plurality of filter cloth bags 4 are installed inside the fixing frame 3, a limiting rod 6 is arranged inside each filter cloth bag 4, the limiting rod 6 is fixedly connected with the fixing frame 3, a lifting ring 7 is sleeved outside the limiting rod 6, an anti-blocking ring 8 is rotatably connected outside the lifting ring 7, a rotating fan blade 9 is installed above the anti-blocking ring 8, and a cleaning brush 10 is arranged inside the anti-blocking ring 8; when the drying device works, in the process that air flow flows through the filter cloth bag 4 and is discharged through the fixing frame 3, the ascending air flow blows the rotating fan blades 9 to drive the anti-blocking ring 8 to rotate, and the ascending air flow exerts an upward force on the ascending air flow so as to drive the lifting ring 7 to slide on the limiting rod 6, in the process, the anti-blocking ring 8 drives the cleaning brush 10 to scrape and brush the filter cloth bag 4, so that powder on the filter cloth bag 4 is scraped off, the condition that the air flow is not smooth due to blockage of the filter cloth bag 4 is prevented, in the process, the blockage condition of the filter cloth bag 4 by the powder is continuously changed, the size of the air flow flowing into the filter cloth bag 4 is also changed, the lifting ring 7 can slide up and down in the filter cloth bag 4, the scraping area is changed, and the filter cloth bag 4 can be effectively scraped and stopped due to the blockage in multiple directions in the drying process, the production efficiency of high-purity polyaluminium chloride is improved, and the powder that is infected with on the filter cloth bag 4 can be cleared up effectively, residual material when drying last time is prevented from remaining on the filter cloth bag 4, so that the condition of mixing materials appears when the high-purity polyaluminium chloride is dried, and the purity of the polyaluminium chloride is further improved.
As shown in fig. 4, a counterweight 12 is slidably connected inside the anti-blocking ring 8, a return spring 11 is fixed between the counterweight 12 and the anti-blocking ring 8, a telescopic block 13 is fixed on one side of the counterweight 12 away from the return spring 11, and the telescopic block 13 is fixedly connected with the cleaning brush 10; the during operation carries out the pivoted in-process at gag lever post 6, its inside balancing weight 12 can receive the effect of centrifugal force to it can stretch reset spring 11 and promote flexible piece 13 motion after making its deformation, flexible piece 13 motion and then drive the motion of cleaning brush 10, like this alright make the motion state of cleaning brush 10 under different air current states different, thereby when filtering sack 4 is more unobstructed, cleaning brush 10 is to the brush effect reinforcing of scraping of filtering sack 4, prevent in advance to filter the condition that the jam appears in sack 4.
As shown in fig. 4, an elastic air bag 14 is slidably connected inside the telescopic block 13, an elastic pull rope 16 is fixed inside the elastic air bag 14 on a side close to the counterweight block 12, and a counterweight ball 15 is fixed on one end of the elastic pull rope 16 far away from the elastic air bag 14; the during operation, when flexible piece 13 appears the motion under the effect of centrifugal force, the inside counter weight ball 15 of elastic air bag 14 can stretch elastic stay cord 16 under the effect of inertial force and centrifugal force, thereby pulling elastic air bag 14 and making its deformation, and then make elastic air bag 14 blowout air current, spun air current is discharged to filtering cloth bag 4 through flexible piece 13 on, thereby carry out the back flush to it from filtering cloth bag 4's inside, further improvement to filtering cloth bag 4 surface powder scrape the brush effect, improved the shutoff effect of preventing to filtering cloth bag 4, further improved high-purity polyaluminium chloride's production efficiency and purity.
As shown in fig. 4, a plurality of drift ropes 17 are fixed outside the telescopic block 13, and a knocking ball 18 is fixed at one end of each drift rope 17 far away from the telescopic block 13; when the dust remover works, in the moving process of the telescopic block 13, the external floating rope 17 and the knocking ball 18 can also float back and forth under the driving of air flow, so that the knocking ball 18 can knock the filtering cloth bag 4 back and forth, powder attached to the surface falls off, and the cleaning effect on the powder on the outer surface of the filtering cloth bag 4 is further improved.
As shown in fig. 3, a counterweight magnetic ring 19 is fixed below the lifting ring 7, a limiting frame 5 is arranged below the counterweight magnetic ring 19, a steering lever 20 is rotatably connected inside the limiting frame 5, and a striking ball 21 is fixed at one end of the steering lever 20 close to the inner wall of the fixing frame 3; the during operation, when the large tracts of land powder blockked up appears in filtering sack 4 surface, at this moment along with letting in filtering sack 4 inside air current and weakening, counter weight magnetic ring 19 can drive the drop ring 7 downstream under the effect of gravity, contact until drop ring 7 and steering lever 20, the drop ring 7 promotes its motion with steering lever 20 contact back, thereby steering lever 20 can drive impact ball 21 and strike mount 3, and then produce vibrations by a relatively large margin, this vibrations can be conducted to filtering sack 4, thereby arouse the vibrations of filtering sack 4, if this vibrations are enough to shake the powder and fall then the air current can let in filtering sack 4 once more, thereby equipment moves once more and need not shut down and clear up filtering sack 4.
As shown in fig. 5, a support ring 22 is slidably connected between the limiting frame 5 and the limiting rod 6, an alarm contact 25 is fixed on one side of the support ring 22 close to the limiting frame 5, an energizing contact 26 is arranged on one side of the alarm contact 25 close to the limiting frame 5, and the energizing contact 26 is fixedly connected with the limiting frame 5; during operation, in case when the condition of blocking up appears in filtering sack 4 completely, counter weight magnetic ring 19 at this moment can contact with support ring 22 to promote support ring 22 and slide downwards, thereby support ring 22 motion drives alarm contact 25 and moves, contacts until alarm contact 25 and circular telegram contact 26, can send alarm signal after alarm contact 25 contacts 26 with circular telegram contact, reminds staff's equipment to appear unusually, and the powder is retrieved the condition that the mechanism probably appears damaging.
As shown in fig. 5, a buffer spring 23 is fixed between the support ring 22 and the fixing frame 3, and a buffer elastic sheet 24 is fixed above the support ring 22; during operation, buffer spring 23 and buffering shell fragment 24's design can cushion counter weight magnetic ring 19, prevents that it from damaging to appear in the too big equipment that leads to of impact force under the effect of gravity, and buffer spring 23 and buffering shell fragment 24's buffering also can make impact ball 21 strike the vibrations that produce to mount 3 and continue for a period and can not strike the back and report to the police immediately simultaneously, and the outside powder of filtration sack 4 also can shake in this period and fall to equipment continues the operation.
As shown in fig. 5, a powered magnet 27 is fixed at the bottom end of the limit rod 6, and the magnetism generated after the powered magnet 27 is powered on is the same as the magnetism of the counterweight magnetic ring 19 on the side close to the powered magnet 27; in operation, once the alarm contact 25 contacts with the power-on contact 26, the power-on magnet 27 is powered on to generate magnetism, and then a repulsive force is applied to the counterweight magnetic ring 19, so that the counterweight magnetic ring 19 and the lifting ring 7 are pushed to operate, the filtering cloth bag 4 is scraped and brushed, if the scraping and brushing are invalid, the alarm contact 25 contacts with the power-on contact 26 again after a period of time, and the equipment stops when the alarm contact 25 contacts with the power-on contact 26 again.
Example two
As shown in fig. 6, a first comparative example, in which another embodiment of the present invention is: a cleaning shell 28 is arranged below the atomizing nozzle 2, a follow-up magnetic plug 29 is connected in the cleaning shell 28 in a sliding manner, a cleaning spring 30 is fixed between the follow-up magnetic plug 29 and the cleaning shell 28, an anti-blocking brush rod 31 is fixed on one side of the follow-up magnetic plug 29, which is far away from the cleaning spring 30, and a plurality of brush sheets 32 are fixed on one side of the anti-blocking brush rod 31, which is close to the atomizing nozzle 2; during operation, the lifting ring 7 drives the downward movement process of the counterweight magnetic ring 19 after the filter cloth bag 4 is blocked, under the action of magnetic force, the follow-up magnetic plug 29 also can stretch the cleaning spring 30 to make the cleaning spring deform and then push the anti-blocking brush rod 31 to move, thereby the anti-blocking brush rod 31 moves to drive the brush piece 32 to move to scrape the atomizing nozzle 2 and block the atomizing nozzle, and the situation that the powder inside the drying tower main body 1 is too much and cannot be discharged, so that the powder blocks the atomizing nozzle 2 to cause the abnormal spraying of the high-purity polyaluminium chloride solution is prevented.
As shown in fig. 7, a method for preparing a high purity polyaluminum chloride water treatment agent, which is applied to any one of the above-mentioned apparatuses for preparing a high purity polyaluminum chloride water treatment agent, comprises the steps of:
s1, putting 100 parts of aluminum hydroxide into a reaction kettle, then adding 200-300 parts of concentrated hydrochloric acid into the reaction kettle, and stirring for 20-30 minutes;
s2, putting the reaction solution prepared in the step one into a transfer reaction kettle for heating and pressurizing, and preparing a polyaluminium chloride solution after reaction;
s3, placing the polyaluminum chloride solution into a centrifuge for centrifugal treatment, and taking supernatant to obtain high-purity polyaluminum chloride solution;
s4, putting the high-purity polyaluminum chloride solution into the drying tower main body 1 for drying treatment, and effectively preventing the filter cloth bag 4 from remaining dry substances in the last use through the mutual matching of the anti-blocking ring 8, the rotating fan blade 9 and the cleaning brush 10, thereby further improving the purity of the polyaluminum chloride.
The working principle is as follows: when the device is used, the high-purity polyaluminium chloride solution is atomized by the atomizing spray head 2 and then sprayed into the drying tower main body 1, then the atomized high-purity polyaluminium chloride solution is dried by introducing heated and filtered air, so that high-purity polyaluminium chloride powder is produced, the spray drying technology is mature, the principle of the device is not repeated in the application, in the process of heating airflow discharge, partial high-purity polyaluminium chloride powder is inevitably mixed in the airflow, at the moment, the airflow can flow through the filtering cloth bag 4 and then be discharged by designing the fixing frame 3, the raw materials in the airflow can be filtered by the filtering cloth bag 4, and in the process of discharging the airflow through the filtering cloth bag 4 and the fixing frame 3, the ascending airflow can blow the rotating fan blades 9 to drive the anti-blocking rings 8 to rotate, and exert an upward force on the ascending airflow, so as to drive the lifting rings 7 to slide on the limiting rods 6, in the process, the anti-blocking ring 8 can drive the cleaning brush 10 to scrape and brush the filtering cloth bag 4, so that powder on the filtering cloth bag 4 is scraped off, the situation that the airflow is not smooth due to blockage of the filtering cloth bag 4 is prevented, in the process, the blockage situation of the powder on the filtering cloth bag 4 is continuously changed, the size of the airflow flowing into the filtering cloth bag 4 is also changed, the lifting ring 7 can slide up and down in the filtering cloth bag 4, the scraping and brushing area is changed, the filtering cloth bag 4 can be effectively scraped and brushed in a multidirectional mode in the drying process, the shutdown caused by blockage of the filtering cloth bag 4 is prevented, the production efficiency of the high-purity polyaluminium chloride is improved, the powder stained on the filtering cloth bag 4 can be effectively cleaned, the residual materials during last drying are prevented from being left on the filtering cloth bag 4, and the mixed material situation is caused during drying of the high-purity polyaluminium chloride, the purity of the polyaluminum chloride is further improved;
in the process of rotating the limiting rod 6, the balancing weight 12 inside the limiting rod is acted by centrifugal force, so that the balancing weight stretches the return spring 11 to deform and then pushes the telescopic block 13 to move, the telescopic block 13 moves to further drive the cleaning brush 10 to move, and thus the movement states of the cleaning brush 10 in different air flow states are different, so that when the filter cloth bag 4 is smooth, the scraping effect of the cleaning brush 10 on the filter cloth bag 4 is enhanced, and the filter cloth bag 4 is prevented from being blocked in advance; when the telescopic block 13 moves under the action of centrifugal force, the counterweight ball 15 in the elastic air bag 14 stretches the elastic pull rope 16 under the action of inertial force and centrifugal force, so that the elastic air bag 14 is pulled to deform, the elastic air bag 14 ejects air flow, the ejected air flow is discharged onto the filter cloth bag 4 through the telescopic block 13, and the filter cloth bag 4 is back flushed from the inside of the filter cloth bag 4, so that the scraping and brushing effect on the surface powder of the filter cloth bag 4 is further improved, the anti-blocking effect on the filter cloth bag 4 is improved, and the production efficiency and the purity of the high-purity polyaluminium chloride are further improved; in the process of movement of the telescopic block 13, the external fluttering rope 17 and the knocking ball 18 can also flutter in a reciprocating manner under the driving of airflow, so that the knocking ball 18 can knock the filter cloth bag 4 in a reciprocating manner, powder attached to the surface falls off, and the cleaning effect on the powder on the outer surface of the filter cloth bag 4 is further improved;
when large-area powder blockage occurs on the outer surface of the filter cloth bag 4, the air flow introduced into the filter cloth bag 4 is weakened, the balance weight magnetic ring 19 drives the lifting ring 7 to move downwards under the action of gravity until the lifting ring 7 is contacted with the steering lever 20, the lifting ring 7 is pushed to move after being contacted with the steering lever 20, so that the steering lever 20 drives the impact balls 21 to knock the fixing frame 3, large-amplitude vibration is generated, the vibration is transmitted to the filter cloth bag 4 to cause vibration of the filter cloth bag 4, if the vibration is enough to shake off the powder, the air flow is introduced into the filter cloth bag 4 again, and the equipment operates again without stopping to clean the filter cloth bag 4; once the filter cloth bag 4 is completely blocked, the counterweight magnetic ring 19 is in contact with the support ring 22 and pushes the support ring 22 to slide downwards, the support ring 22 moves to drive the alarm contact 25 to move until the alarm contact 25 is in contact with the power-on contact 26, and an alarm signal is sent out after the alarm contact 25 is in contact with the power-on contact 26 to remind staff of abnormal equipment and possible damage to a powder recovery mechanism; the design of the buffer spring 23 and the buffer elastic sheet 24 can buffer the counterweight magnetic ring 19, so that the damage of equipment caused by overlarge impact force under the action of gravity is prevented, meanwhile, the buffer of the buffer spring 23 and the buffer elastic sheet 24 can also enable the vibration generated by the impact of the impact ball 21 on the fixed frame 3 to be continued for a period of time without immediately giving an alarm after the impact, and the powder outside the filter cloth bag 4 can be possibly vibrated down in the period of time, so that the equipment continues to operate; once the alarm contact 25 is contacted with the electrifying contact 26, the electrifying magnet 27 is electrified to generate magnetism, a repulsive force is further exerted on the counterweight magnetic ring 19, the counterweight magnetic ring 19 and the lifting ring 7 are pushed to operate, the filter cloth bag 4 is scraped, if the scraping brush is invalid, the alarm contact 25 is contacted with the electrifying contact 26 again after a period of time, and the equipment is stopped when the alarm contact 25 is contacted with the electrifying contact 26 again;
in the process that the lifting ring 7 drives the counterweight magnetic ring 19 to move downwards after the filter cloth bag 4 is blocked, under the action of magnetic force, the follow-up magnetic plug 29 also stretches the cleaning spring 30 to enable the cleaning spring to deform and then push the anti-blocking brush rod 31 to move, so that the anti-blocking brush rod 31 moves to drive the brush piece 32 to move to scrape and block the atomizing nozzle 2, and the situation that the powder inside the drying tower main body 1 cannot be discharged too much and the atomizing nozzle 2 is blocked by the powder to cause the normal ejection of high-purity polyaluminium chloride solution is prevented.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a preparation facilities of high-purity polyaluminium chloride water treatment agent which characterized in that: including drying tower main part (1), drying tower main part (1) externally mounted has atomizer (2), mount (3) are installed to the top of drying tower main part (1) inner wall, mount (3) internally mounted has a plurality of filtration sack (4), filter sack (4) inside be provided with gag lever post (6), gag lever post (6) and mount (3) fixed connection, lifter ring (7) have been cup jointed to gag lever post (6) outside, lifter ring (7) outside is rotated and is connected with and prevents stifled ring (8), prevent stifled ring (8) top and install rotatory fan blade (9), prevent that stifled ring (8) inside is provided with clean brush (10).
2. The apparatus for preparing a high purity polyaluminium chloride water treatment agent according to claim 1, wherein: prevent that the inside sliding connection of stifled ring (8) has balancing weight (12), be fixed with reset spring (11) between balancing weight (12) and stifled ring (8), one side that reset spring (11) were kept away from in balancing weight (12) is fixed with flexible piece (13), flexible piece (13) and cleaning brush (10) fixed connection.
3. The apparatus for preparing a high purity polyaluminium chloride water treatment agent according to claim 2, wherein: the telescopic block (13) is internally connected with an elastic air bag (14) in a sliding manner, one side, close to the balancing weight (12), of the inside of the elastic air bag (14) is fixedly provided with an elastic pull rope (16), and one end, far away from the elastic air bag (14), of the elastic pull rope (16) is fixedly provided with a balancing weight ball (15).
4. The apparatus for preparing a high purity polyaluminium chloride water treatment agent according to claim 2, wherein: a plurality of fluttering ropes (17) are fixed on the outer portion of the telescopic block (13), and a knocking ball (18) is fixed at one end, far away from the telescopic block (13), of each fluttering rope (17).
5. The apparatus for preparing a high purity polyaluminium chloride water treatment agent according to claim 1, wherein: a counterweight magnetic ring (19) is fixed below the lifting ring (7), a limiting frame (5) is arranged below the counterweight magnetic ring (19), a steering lever (20) is rotatably connected inside the limiting frame (5), and an impact ball (21) is fixed at one end, close to the inner wall of the fixing frame (3), of the steering lever (20).
6. The apparatus for preparing a high-purity polyaluminum chloride water treatment agent according to claim 1, wherein: sliding connection has support ring (22) between spacing (5) and gag lever post (6), one side that support ring (22) are close to spacing (5) is fixed with alarm contact (25), one side that alarm contact (25) are close to spacing (5) is provided with circular telegram contact (26), circular telegram contact (26) and spacing (5) fixed connection.
7. The apparatus for preparing a high purity polyaluminium chloride water treatment agent according to claim 6, wherein: a buffer spring (23) is fixed between the support ring (22) and the fixing frame (3), and a buffer elastic sheet (24) is fixed above the support ring (22).
8. The apparatus for preparing a high purity polyaluminium chloride water treatment agent according to claim 5, wherein: an electrified magnet (27) is fixed at the bottom end of the limiting rod (6), and the magnetism generated after the electrified magnet (27) is electrified is the same as the magnetism of one side, close to the electrified magnet (27), of the counterweight magnetic ring (19).
9. The apparatus for preparing a high purity polyaluminium chloride water treatment agent according to claim 1, wherein: atomizer (2) below is provided with clean casing (28), clean casing (28) inside sliding connection has follow-up magnetic plug (29), be fixed with between follow-up magnetic plug (29) and clean casing (28) clean spring (30), one side that clean spring (30) were kept away from in follow-up magnetic plug (29) is fixed with prevents stifled brush-holder stud (31), one side that prevents stifled brush-holder stud (31) and be close to atomizer (2) is fixed with a plurality of brush pieces (32).
10. A preparation method of a high-purity polyaluminium chloride water treatment agent is characterized by comprising the following steps: the preparation method is suitable for a preparation device of the high-purity polyaluminium chloride water treatment agent as defined in any one of claims 1 to 9, and comprises the following steps:
s1, putting 100 parts of aluminum hydroxide into a reaction kettle, then adding 200-300 parts of concentrated hydrochloric acid into the reaction kettle, and stirring for 20-30 minutes;
s2, putting the reaction solution prepared in the step one into a transfer reaction kettle for heating and pressurizing, and preparing a polyaluminium chloride solution after reaction;
s3, placing the polyaluminum chloride solution into a centrifuge for centrifugal treatment, and taking supernatant to obtain high-purity polyaluminum chloride solution;
s4, putting the high-purity polyaluminum chloride solution into the drying tower main body (1) for drying treatment, and effectively preventing the filter cloth bag (4) from leaving the dried substances in the last use through the mutual matching of the anti-blocking ring (8), the rotating fan blade (9) and the cleaning brush (10), thereby further improving the purity of the polyaluminum chloride.
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