CN113476950A - Wet-process regenerated water glass production device and method - Google Patents
Wet-process regenerated water glass production device and method Download PDFInfo
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- CN113476950A CN113476950A CN202110804120.7A CN202110804120A CN113476950A CN 113476950 A CN113476950 A CN 113476950A CN 202110804120 A CN202110804120 A CN 202110804120A CN 113476950 A CN113476950 A CN 113476950A
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- filtering
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- wet
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 33
- 235000019353 potassium silicate Nutrition 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 133
- 230000007246 mechanism Effects 0.000 claims abstract description 108
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000010865 sewage Substances 0.000 claims abstract description 27
- 239000000706 filtrate Substances 0.000 claims description 24
- 238000011069 regeneration method Methods 0.000 claims description 13
- 230000008929 regeneration Effects 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000012295 chemical reaction liquid Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 239000004576 sand Substances 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000004115 Sodium Silicate Substances 0.000 description 7
- 238000005192 partition Methods 0.000 description 7
- 229910052911 sodium silicate Inorganic materials 0.000 description 7
- 238000005457 optimization Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1862—Stationary reactors having moving elements inside placed in series
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
- C01B33/325—After-treatment, e.g. purification or stabilisation of solutions, granulation; Dissolution; Obtaining solid silicate, e.g. from a solution by spray-drying, flashing off water or adding a coagulant
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a device and a method for producing regenerated water glass by a wet method, which comprises a device main body, a centrifugal filtering mechanism, a first filtering mechanism, a stirring reaction mechanism, a second filtering mechanism and a kettle body arranged on one side of the device main body, wherein the centrifugal filtering mechanism, the first filtering mechanism, the stirring reaction mechanism and the second filtering mechanism are sequentially arranged in the device main body from top to bottom, an inclined blanking pipeline and a liquid dredging pipeline are connected between the device main body and the kettle body, one end of the inclined blanking pipeline is connected to the first filtering mechanism, one end of the liquid dredging pipeline is connected to the lower part of the second filtering mechanism, and the centrifugal filtering mechanism is used for filtering regenerated sewage by the wet method. The device and the method for producing the wet-process regenerated water glass can efficiently recover the water glass in the wet-process regenerated sewage, and adopt an integrated arrangement pattern from top to bottom for a plurality of reaction devices, so that the time consumption of the production process can be effectively reduced, the occupation of space is reduced, the influence of the sewage on the environment is reduced, and the waste of resources is reduced.
Description
Technical Field
The invention belongs to the technical field of water glass production, and particularly relates to a device and a method for producing regenerated water glass by a wet method.
Background
The water glass is a general name of various silicate water solutions, is commonly used as a binder in the casting industry, and has the advantages of no toxicity, no smell, high strength, low cost, good fluidity and the like, so that the water glass sand is widely applied. As a large casting country, the amount of used water glass sand produced in China each year reaches millions of tons, but the reuse rate of the used water glass sand is regulated to be not lower than 60% in the Admission Condition of casting industry issued in 2013, so that the regeneration and reuse of the used water glass sand are imperative.
The regeneration and reuse of the used sodium silicate sand refers to that after the used sodium silicate sand is crushed, residual binder, salt and other impurities on the surface of the used sand are removed, so that the physical and chemical properties of the used sodium silicate sand are recovered to be close to those of new sand, and the used sodium silicate sand is used for replacing the new sand. The main methods for regenerating the used sodium silicate sand comprise dry regeneration and wet regeneration, wherein the dry regeneration sand has poor usability and can only be used as back sand generally, and the regeneration and the reuse can not be really realized; the wet regeneration is to dissolve the residual binder and salt and other impurities on the surface of sand grains by using water, and then separate the binder and salt dissolved in the water from the sand along with the water by sand-water separation. The stripping rate of wet regeneration can reach 80-90%, and the regenerated sand has good quality, and can directly replace new sand, thereby really realizing regeneration and reuse, but the difficulty in wastewater treatment in the current wet regeneration method is an important factor limiting the wide application of the method.
At present, a method and a corresponding device for recycling water glass from wet-process recycled sewage exist, but the device for recycling the water glass from the wet-process recycled sewage mostly adopts a plurality of devices or reaction tanks which are communicated for treatment, so that the occupied area is large, and the reaction time is long.
Disclosure of Invention
The invention aims to solve the problems and provide a device and a method for producing regenerated water glass by a wet method, which have simple structure and reasonable design.
The invention realizes the purpose through the following technical scheme:
a wet-process regenerated water glass production device comprises a device main body, a centrifugal filtering mechanism, a first filtering mechanism, a stirring reaction mechanism, a second filtering mechanism and a kettle body, wherein the centrifugal filtering mechanism, the first filtering mechanism, the stirring reaction mechanism and the second filtering mechanism are sequentially arranged in the device main body from top to bottom, the kettle body is arranged on one side of the device main body, an inclined type blanking pipeline and a liquid dredging pipeline are connected between the device main body and the kettle body, one end of the inclined type blanking pipeline is connected to the first filtering mechanism, one end of the liquid dredging pipeline is connected to the lower part of the second filtering mechanism, the centrifugal filtering mechanism is used for filtering wet-process regenerated sewage, the first filtering mechanism is used for collecting filter residues filtered by the centrifugal filtering mechanism and conveying the filter residues to the kettle body through the inclined type blanking pipeline, the stirring reaction mechanism is used for stirring filtrate filtered by the centrifugal filtering mechanism and the first filtering mechanism, the second filtering mechanism is used for filtering liquid output by the stirring reaction mechanism and collecting the filter residues, the filtrate filtered by the second filtering mechanism is transmitted to the kettle body through a liquid dredging pipeline.
As a further optimization scheme of the invention, the centrifugal filtering mechanism comprises a bearing connected at the upper end of the device main body, a sewage input pipe arranged in the middle of the bearing, a limit ring plate connected with the outer wall of the upper end of the sewage input pipe, a motor box connected at the upper end of the device main body, a second motor arranged in the motor box, a driving gear connected on the output shaft of the second motor, and a centrifugal cylinder connected at the lower end of the sewage input pipe, the connection is at the connecting ring board on the centrifuge bowl outer wall, connect a plurality of third motor at connecting ring board lower extreme, connect the screw rod of connecting in third motor output shaft, cup joint the nut on the screw rod, connect the connecting rod on the nut lateral wall, connect the lower shrouding in connecting rod one end and connect the first funnel on the device main part inner wall, lower shrouding is used for the lower extreme export of sealed centrifuge bowl, first funnel is located the below of screw rod, be equipped with the teeth of a cogwheel with drive gear meshing on the connecting ring board outer wall.
As a further optimization scheme of the invention, the first filtering mechanism comprises a first filtering plate connected to the inner wall of the device main body, a first rotating shaft connected to the middle part of the first filtering plate in a penetrating manner, a plurality of first rake arms connected to the first rotating shaft and a plurality of first rake blades connected to the first rake arms, and one end of the inclined blanking pipeline is connected to the first filtering plate.
As a further optimization scheme of the invention, the stirring reaction mechanism comprises a partition plate and a second funnel which are connected to the inner wall of the device main body, a second rotating shaft which is connected to the middle of the partition plate in a penetrating manner, a plurality of first stirring blades which are connected to the second rotating shaft, a clip pipeline which is connected to the outer wall of the device main body and a valve which is arranged on the clip pipeline, one end of the clip pipeline is positioned above the partition plate, the other end of the clip pipeline is positioned below the partition plate, the second funnel is positioned below the clip pipeline, the second rotating shaft is detachably connected with the first rotating shaft, a feeding pipe is connected to the side wall of the device main body, and the feeding pipe is positioned below the first filter plate.
As a further optimization scheme of the invention, the second filtering mechanism comprises a second filtering plate connected to the inner wall of the device main body, a third rotating shaft connected to the middle part of the second filtering plate in a penetrating manner, a plurality of second rake arms connected to the third rotating shaft, a plurality of second rake blades connected to the second rake arms, and a plurality of fan-shaped slag pockets connected to the outer wall of the device main body, wherein the device main body is provided with a plurality of discharge grooves matched with the fan-shaped slag pockets.
As a further optimization scheme of the invention, the bottom of the device main body is provided with a first motor, the output end of the first motor is connected with a third rotating shaft, and the third rotating shaft is detachably connected with the second rotating shaft.
As a further optimization scheme of the invention, the upper end of the kettle body is provided with a fourth motor, a fourth rotating shaft connected with the output end of the fourth motor, a plurality of second stirring blades connected with the fourth rotating shaft and a bottom stirring blade connected with the lower end of the fourth rotating shaft, and the lower end of the kettle body is connected with a discharging pipe.
The method for regenerating the water glass by adopting the device comprises the following steps:
step S1, inputting the wet-process regeneration sewage into a centrifugal filtering mechanism for full filtering to generate centrifugal filtrate and centrifugal filter residue, dripping the centrifugal filtrate to a first filtering mechanism for secondary filtering, throwing the centrifugal filter residue to the first filtering mechanism by the centrifugal filtering mechanism after the secondary filtering, and conveying the centrifugal filter residue and the secondary filter residue generated after the secondary filtering to a kettle body by the first filtering mechanism through an inclined blanking pipeline;
s2, dripping the secondary filtrate filtered by the first filtering mechanism into a stirring reaction mechanism, adding lime into the stirring reaction mechanism, generating reaction liquid after the secondary filtrate fully reacts with the lime, and outputting the reaction liquid to a second filtering mechanism;
and S3, filtering the reaction liquid by a second filtering mechanism, generating a third filtrate and a third filter residue, conveying the third filtrate into the kettle body through a liquid dredging pipeline, heating and stirring the third filtrate, the centrifugal filter residue and the second filter residue, and outputting after full reaction.
The invention has the beneficial effects that:
1) according to the invention, the plurality of reaction devices are integrally arranged from top to bottom, so that the time consumption of the production process can be effectively reduced, the occupied space is reduced, the influence of sewage on the environment is reduced, and the waste of resources is reduced;
2) the multiple filtering mechanism can conveniently collect and treat the filter residues on the filter plate while filtering liquid, does not need to regularly clean and recover the filter residues on the filter plate, and is convenient and fast;
3) the invention has simple structure, high stability, reasonable design and convenient realization.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top plan view of a first filter mechanism of the present invention;
fig. 3 is a schematic structural view of a first hopper of the present invention.
In the figure: 1. a device main body; 101. a feeding pipe; 102. a first motor; 201. a sewage input pipe; 202. a limit ring plate; 203. a bearing; 204. a centrifugal cylinder; 205. a motor case; 206. a second motor; 207. a drive gear; 208. a connecting ring plate; 209. a third motor; 210. a screw; 211. a connecting rod; 212. a nut; 213. a lower sealing plate; 214. a first hopper; 301. a first filter plate; 302. a first rotating shaft; 303. a first rake arm; 304. a second rake blade; 401. a partition plate; 402. a second rotating shaft; 403. a first stirring blade; 404. a pipe in a shape of a Chinese character 'hui'; 405. a valve; 406. a second hopper; 501. a second filter plate; 502. a third rotating shaft; 503. a second rake arm; 504. a second rake blade; 505. a fan-shaped slag pocket; 6. a kettle body; 601. a fourth motor; 602. a fourth rotating shaft; 603. a second stirring blade; 604. a bottom stirring blade; 605. a discharge pipe; 7. an inclined blanking pipeline; 8. the liquid dredges the pipeline.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-3, a wet-process recycled water glass production device comprises a device main body 1, a centrifugal filtering mechanism, a first filtering mechanism, a stirring reaction mechanism, a second filtering mechanism and a kettle body 6 arranged on one side of the device main body 1 from top to bottom, wherein an inclined type blanking pipeline 7 and a liquid dredging pipeline 8 are connected between the device main body 1 and the kettle body 6, one end of the inclined type blanking pipeline 7 is connected with the first filtering mechanism, one end of the liquid dredging pipeline 8 is connected with the lower part of the second filtering mechanism, the centrifugal filtering mechanism is used for filtering wet-process recycled sewage, the first filtering mechanism is used for collecting filter residues filtered by the centrifugal filtering mechanism and conveying the filter residues into the kettle body 6 through the inclined type blanking pipeline 7, the stirring reaction mechanism is used for stirring filtrate filtered by the centrifugal filtering mechanism and the first filtering mechanism, the second filtering mechanism is used for filtering liquid output by the stirring reaction mechanism and collecting the filter residues, the filtrate filtered by the second filtering mechanism is transmitted to the kettle body 6 through the liquid dredging pipeline 8.
The centrifugal filtering mechanism comprises a bearing 203 connected to the upper end of the device main body 1, a sewage input pipe 201 arranged in the middle of the bearing 203, a limit ring plate 202 connected to the outer wall of the upper end of the sewage input pipe 201, a motor box 205 connected to the upper end of the device main body 1, a second motor 206 arranged in the motor box 205, a driving gear 207 connected to the output shaft of the second motor 206, a centrifugal cylinder 204 connected to the lower end of the sewage input pipe 201, a connecting ring plate 208 connected to the outer wall of the centrifugal cylinder 204, a plurality of third motors 209 connected to the lower end of the connecting ring plate 208, a screw 210 connected to the output shaft of the third motors 209, a nut 212 sleeved on the screw 210, a connecting rod 211 connected to the side wall of the nut 212, a lower sealing plate 213 connected to one end of the connecting rod 211 and a first funnel 214 connected to the inner wall of the device main body 1, wherein the lower sealing plate 213 is used for sealing the lower outlet of the centrifugal cylinder 204, the first hopper 214 is positioned below the screw 210, and gear teeth engaged with the driving gear 207 are provided on the outer wall of the connection ring plate 208.
When the centrifugal filtering mechanism works, the second motor 206 drives the driving gear 207 to rotate, the driving gear 207 drives the connecting ring plate 208 to rotate, the connecting ring plate 208 drives the sewage input pipe 201 and the centrifugal cylinder 204 to rotate in the same direction, at this time, sewage is input into the centrifugal cylinder 204 to be subjected to centrifugal filtering treatment, liquid is thrown out from a filtering hole on the side wall of the centrifugal cylinder 204 and falls onto the first funnel 214, the first funnel 214 guides the liquid and drops the liquid onto the first filtering mechanism, filter residues in the centrifugal cylinder 204 are subjected to sufficient centrifugal filtering, the third motor 209 drives the screw rod 210 to rotate, the screw rod 210 drives the nut 212 to move downwards along the axial direction of the screw rod 210, the lower sealing plate 213 is separated from the centrifugal cylinder 204, and at this time, the filter residues in the centrifugal cylinder 204 are thrown out under the action of centrifugal force and fall to the first filtering mechanism.
The first filtering mechanism comprises a first filtering plate 301 connected to the inner wall of the device main body 1, a first rotating shaft 302 connected to the middle part of the first filtering plate 301 in a penetrating way, a plurality of first rake arms 303 connected to the first rotating shaft 302 and a plurality of first rake blades 304 connected to the first rake arms 303, and one end of the inclined blanking pipeline 7 is connected to the first filtering plate 301.
The first filtering mechanism can filter the liquid flowing through, and the filter residue on the first filtering plate 301 gradually moves to the periphery of the first filtering plate 301 under the rotation of the first rake blade 304, and is finally swept into the inclined blanking pipeline 7.
Stirring reaction mechanism is including connecting baffle 401 and the second funnel 406 on device main part 1 inner wall, through connection is at the second pivot 402 at baffle 401 middle part, connect the first stirring vane 403 of a plurality of on second pivot 402, connect the pipe 404 of returning the shape on device main part 1 outer wall and locate the valve 405 on the pipe 404 of returning the shape, the one end of pipe 404 of returning the shape is located the top of baffle 401, the other end is located the below of baffle 401, second funnel 406 is located the below of returning the pipe 404 of shape, second pivot 402 and the detachable connection of first pivot 302, be connected with feeding pipe 101 on the lateral wall of device main part 1, feeding pipe 101 is located the below of first filter 301.
The filtered liquid is fully stirred and reacted above the partition board 401, and after the reaction is finished, the valve 405 on the square pipe 404 is opened, so that the reacted liquid can be conveyed to the second filtering mechanism for secondary filtering.
The second filtering mechanism comprises a second filtering plate 501 connected to the inner wall of the device main body 1, a third rotating shaft 502 connected to the middle part of the second filtering plate 501 in a penetrating manner, a plurality of second rake arms 503 connected to the third rotating shaft 502, a plurality of second rake blades 504 connected to the second rake arms 503, and a plurality of fan-shaped slag pocket 505 connected to the outer wall of the device main body 1, wherein the device main body 1 is provided with a plurality of discharge grooves matched with the fan-shaped slag pocket 505.
The liquid after the second filtering mechanism is reacted is filtered, and the liquid after filtering drips to the below space of second filter 501, and the filter residue on the second filter 501 is then swept the edge to second filter 501 under the rotation of second harrow leaf 504 to in getting into fan-shaped slag charge pocket 505 from the bin outlet, the staff can follow the top of fan-shaped slag charge pocket 505 and get the material, conveniently carries out recycle to the filter residue.
The bottom of the device body 1 is provided with a first motor 102, the output end of the first motor 102 is connected with a third rotating shaft 502, and the third rotating shaft 502 is detachably connected with a second rotating shaft 402.
The first motor 102 can simultaneously drive the first shaft 302, the second shaft 402 and the third shaft 502 to rotate in the same direction.
The upper end of the kettle body 6 is provided with a fourth motor 601, a fourth rotating shaft 602 connected to the output end of the fourth motor 601, a plurality of second stirring blades 603 connected to the fourth rotating shaft 602, and a bottom stirring blade 604 connected to the lower end of the fourth rotating shaft 602, and the lower end of the kettle body 6 is connected with a discharging pipe 605.
When the device is used for regenerating water glass, wet-process regenerated sewage is input into the centrifugal filtering mechanism, the second motor 206 drives the driving gear 207 to rotate, the driving gear 207 drives the connecting ring plate 208 to rotate, the connecting ring plate 208 drives the sewage input pipe 201 and the centrifugal cylinder 204 to rotate in the same direction, at the moment, sewage input into the centrifugal cylinder 204 is subjected to centrifugal filtering treatment, filtered centrifugal liquid is thrown out from a filtering hole on the side wall of the centrifugal cylinder 204 and falls onto the first funnel 214, the first funnel 214 conducts flow guiding on the centrifugal liquid and drips onto the first filtering mechanism, the first filtering mechanism conducts secondary filtering on the centrifugal liquid, after the first filtering mechanism finishes filtering the centrifugal liquid, the screw 210 is driven to rotate by the third motor 209, the screw 210 drives the nut 212 to move downwards along the axial direction of the screw 210, the lower sealing plate 213 is separated from the centrifugal cylinder 204, at the moment, centrifugal filter residues in the centrifugal cylinder 204 are thrown out under the action of centrifugal force, the centrifugal filter residues and the secondary filter residues on the first filter plate 301 are mixed, gradually move towards the periphery of the first filter plate 301 under the rotation of the first rake blade 304 and are finally swept into the inclined blanking pipeline 7, and the mixed filter residues are conveyed into the kettle body 6 from the inclined blanking pipeline 7;
at this time, the filtrate filtered by the first filtering mechanism flows into the stirring reaction mechanism, the filtrate is retained above the partition board 401, at this time, quicklime or slaked lime is added into the filtrate through the feeding pipe 101, and is fully stirred and reacted with the filtrate to generate a mixed solution of sodium hydroxide solution and calcium carbonate, then the valve 405 on the square pipe 404 is opened, the mixed solution is conveyed to the second filtering mechanism, the second filtering mechanism filters the mixed solution, the calcium carbonate becomes filter residue which is filtered by the second filtering plate 501, and sweeps down to the edge of the second filter plate 501 by the rotation of the second rake blade 504, and finally enters the fan-shaped slag pocket 505, and conveying the sodium hydroxide solution into the kettle body 6 from the liquid dredging pipeline 8 to perform heating reaction with the mixed filter residue, reacting the silicon dioxide in the mixed filter residue with the sodium hydroxide solution to generate a dilute sodium silicate solution, and subsequently treating the dilute sodium silicate solution to generate the water glass.
It should be noted that, whole process is gone on in device main part 1, has reduced the area of device, and the whole integrated nature of equipment is high, but the efficient retrieves preparation water glass from sewage, and can carry out convenient collection to the filter residue on the filter plate when filtering liquid and handle, does not need regularly to clear up the filter residue on the filter plate and retrieves, and is comparatively convenient.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The utility model provides a wet process regeneration water glass apparatus for producing which characterized in that: comprises a device main body (1), a centrifugal filtering mechanism, a first filtering mechanism, a stirring reaction mechanism and a second filtering mechanism which are sequentially arranged in the device main body (1) from top to bottom, and a kettle body (6) arranged on one side of the device main body (1), wherein an inclined type blanking pipeline (7) and a liquid dredging pipeline (8) are connected between the device main body (1) and the kettle body (6), one end of the inclined type blanking pipeline (7) is connected with the first filtering mechanism, one end of the liquid dredging pipeline (8) is connected with the lower part of the second filtering mechanism, the centrifugal filtering mechanism is used for filtering wet-method regenerated sewage, the first filtering mechanism is used for collecting filter residues filtered by the centrifugal filtering mechanism and conveying the filter residues to the kettle body (6) through the inclined type blanking pipeline (7), the stirring reaction mechanism is used for stirring filtrate filtered by the centrifugal filtering mechanism and the first filtering mechanism, the second filtering mechanism is used for filtering liquid output by the stirring reaction mechanism and collecting the filter residues, the filtrate filtered by the second filtering mechanism is transmitted to the kettle body (6) through a liquid dredging pipeline (8).
2. The wet-process reclaimed water glass production device according to claim 1, wherein: the centrifugal filtering mechanism comprises a bearing (203) connected to the upper end of the device body (1), a sewage input pipe (201) installed in the middle of the bearing (203), a limiting ring plate (202) connected to the outer wall of the upper end of the sewage input pipe (201), a motor box (205) connected to the upper end of the device body (1), a second motor (206) arranged in the motor box (205), a driving gear (207) connected to an output shaft of the second motor (206), a centrifugal cylinder (204) connected to the lower end of the sewage input pipe (201), a connecting ring plate (208) connected to the outer wall of the centrifugal cylinder (204), a plurality of third motors (209) connected to the lower end of the connecting ring plate (208), a screw (210) connected to an output shaft of the third motors (209), a nut (212) sleeved on the screw (210), a connecting rod (211) connected to the side wall of the nut (212), a lower sealing plate (213) connected to one end of the connecting rod (211) and a lower sealing plate (213) connected to the inner wall of the device body (1) The lower closing plate (213) is used for sealing the lower end outlet of the centrifugal cylinder (204), the first hopper (214) is positioned below the screw rod (210), and gear teeth meshed with the driving gear (207) are arranged on the outer wall of the connecting ring plate (208).
3. The wet-process reclaimed water glass production device according to claim 1, wherein: the first filtering mechanism comprises a first filtering plate (301) connected to the inner wall of the device body (1), a first rotating shaft (302) connected to the middle of the first filtering plate (301), a plurality of first rake arms (303) connected to the first rotating shaft (302) and a plurality of first rake blades (304) connected to the first rake arms (303), wherein one end of the inclined blanking pipeline (7) is connected to the first filtering plate (301).
4. The wet-process reclaimed water glass production device according to claim 1, wherein: stirring reaction mechanism is including connecting baffle (401) and second funnel (406) on device main part (1) inner wall, through connection second pivot (402) at baffle (401) middle part, connect a plurality of first stirring vane (403) on second pivot (402), connect returning the shape pipeline (404) on device main part (1) outer wall and locate valve (405) on returning the shape pipeline (404), the one end of returning the shape pipeline (404) is located the top of baffle (401), the other end is located the below of baffle (401), second funnel (406) is located the below of returning the shape pipeline (404), second pivot (402) and first pivot (302) detachable connection, be connected with on the lateral wall of device main part (1) and throw material pipe (101), it is located the below of first filter (301) to throw material pipe (101).
5. The wet-process reclaimed water glass production device according to claim 1, wherein: the second filtering mechanism comprises a second filtering plate (501) connected to the inner wall of the device main body (1), a third rotating shaft (502) connected to the middle of the second filtering plate (501), a plurality of second rake arms (503) connected to the third rotating shaft (502), a plurality of second rake blades (504) connected to the second rake arms (503) and a plurality of fan-shaped slag pocket (505) connected to the outer wall of the device main body (1), and a plurality of discharging grooves matched with the fan-shaped slag pocket (505) are formed in the device main body (1).
6. The wet-process reclaimed water glass production device according to claim 1, wherein: the device is characterized in that a first motor (102) is arranged at the bottom of the device main body (1), the output end of the first motor (102) is connected with a third rotating shaft (502), and the third rotating shaft (502) is detachably connected with a second rotating shaft (402).
7. The wet-process reclaimed water glass production device according to claim 1, wherein: the upper end of the kettle body (6) is provided with a fourth motor (601), a fourth rotating shaft (602) connected to the output end of the fourth motor (601), a plurality of second stirring blades (603) connected to the fourth rotating shaft (602) and bottom stirring blades (604) connected to the lower end of the fourth rotating shaft (602), and the lower end of the kettle body (6) is connected with a discharging pipe (605).
8. A method for regenerating water glass using the device according to any one of claims 1 to 7, characterized in that it comprises the following steps:
step S1, inputting the wet-process regeneration sewage into a centrifugal filtering mechanism for full filtering to generate centrifugal filtrate and centrifugal filter residue, dripping the centrifugal filtrate to a first filtering mechanism for secondary filtering, throwing the centrifugal filter residue to the first filtering mechanism by the centrifugal filtering mechanism after the secondary filtering, and conveying the centrifugal filter residue and the secondary filter residue generated after the secondary filtering to a kettle body (6) by the first filtering mechanism through an inclined type blanking pipeline (7);
s2, dripping the secondary filtrate filtered by the first filtering mechanism into a stirring reaction mechanism, adding lime into the stirring reaction mechanism, generating reaction liquid after the secondary filtrate fully reacts with the lime, and outputting the reaction liquid to a second filtering mechanism;
and S3, filtering the reaction liquid by a second filtering mechanism, generating third filtrate and third filter residue, conveying the third filtrate into the kettle body (6) through a liquid dredging pipeline (8), heating and stirring the third filtrate, the centrifugal filter residue and the second filter residue, and outputting after full reaction.
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Application publication date: 20211008 |