A device for treating silicon slag for producing sodium silicate

Abstract

The application relates to the technical field of sodium silicate production equipment, and discloses a silicon residue treatment equipment for producing sodium silicate, which comprises a treatment mechanism for separating silicon residue, the treatment mechanism is rotationally matched in a treatment bin, the upper end of the treatment mechanism is matched with a driving mechanism for driving the treatment mechanism to rotate, and the treatment mechanism is in communication with the matching end of the driving mechanism, a silicon residue feeding bin and a flushing pipeline; the pump wheel assembly and the impeller assembly are arranged, the pump wheel assembly and the impeller assembly are coupled through hydraulic force, the pump wheel assembly and the impeller assembly can smoothly rotate at different speeds, the speed requirement of centrifugal separation of the material at the bottom of the treatment bin can be met, the mixed stirring and filtering speed requirement of the filter assembly and the pump wheel assembly can be ensured, and the technical problems that the motor cannot rotate at high speed or the rotating load is too large due to the large hydraulic pressure of the solid matter at the bottom of the treatment bin when the motor is directly driven can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sodium silicate production equipment, in particular to silicon slag processing equipment for producing sodium silicate. Background Art

[0002] Sodium silicate solution is produced by the reaction of quartz sand and liquid caustic soda. This chemical reaction is an overreaction, so the production of sodium silicate solution produces a large amount of silicon slag waste. After initial filtration, the silicon slag is a viscous mud containing a large amount of unreacted quartz sand, sodium silicate solution, water, and insoluble colloidal impurities wrapped around the quartz sand. Treatment of the silicon slag generally involves washing and separating the quartz sand from the slag. The colloidal impurities are then coagulated and filtered using a flocculant. Finally, a portion of the sodium silicate solution and quartz sand raw material is recovered, while the remaining impurities are treated as waste.

[0003] In the process of processing silicon slag, a variety of mechanical equipment is required for separating and processing the silicon slag, as well as sufficient water sources for cleaning the silicon slag. For example, the Chinese invention patent with authorization announcement number CN115945449B discloses a sodium silicate extraction device in silicon slag, including an extraction box, a hopper is provided on the top of the extraction box, and the hopper is connected to the extraction box through a feed pipe; an extraction chamber is provided in the extraction box, two sets of chain conveyors are installed in the extraction chamber, and several sets of cleaning components are installed between the two sets of chain conveyors.

[0004] Although the technical solution proposed in this patent can extract a portion of the sodium silicate solution, due to the viscous nature of silicon slag, the extraction of the sodium silicate solution by this solution is very limited, and the large amount of quartz sand contained in the silicon slag cannot be effectively recycled and utilized, and the silicon slag treatment requirements during the continuous production of sodium silicate solution cannot be met.

[0005] Therefore, it is necessary to invent a processing equipment that can quickly process and separate silicon slag. Summary of the Invention

[0006] The purpose of the present invention is to provide a silicon slag treatment device for producing sodium silicate in order to solve the technical problem of how to efficiently treat and recover silicon slag in the continuous production of silicic acid solution.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0008] A silicon slag treatment device for producing sodium silicate, comprising:

[0009] The frame includes a base, side frames are fixedly welded on both sides of the base, and a motor bracket is welded at one end of the base;

[0010] The slag discharge bin is provided with a treatment bin for separating silicon slag, an overflow bin is arranged above the slag discharge bin, and the upper end of the treatment bin is communicated with the overflow bin, and the bottom of the treatment bin is provided with a slag discharge hole communicated with the slag discharge bin.

[0011] The silicon slag feeding bin is arranged above the slag discharge bin, and a flushing pipeline is connected to the feeding inlet of the silicon slag feeding bin.

[0012] Further, the treatment mechanism for separating silicon slag is rotatably fitted in the treatment bin, the upper end of the treatment mechanism is fitted with a driving mechanism for driving the rotation of the treatment mechanism, and the fitting end of the treatment mechanism and the driving mechanism is communicated with the silicon slag feeding bin and the flushing pipeline.

[0013] The treatment mechanism includes a rotating base assembly rotatably fitted at the bottom of the treatment bin, a impeller assembly is fixed above the rotating base assembly, and the impeller assembly is arranged inside the treatment bin, a pump wheel assembly is arranged above the impeller assembly, and the pump wheel assembly and the impeller assembly are a hydraulic coupling mechanism, a filter assembly is fixed to the upper end of the pump wheel assembly, a feeding pipe assembly for driving the rotation of the pump wheel assembly and feeding is fixed to the upper end of the filter assembly, and the top of the feeding pipe assembly is fitted with the driving mechanism and communicated with the silicon slag feeding bin.

[0014] The feeding pipe assembly includes a sleeve fixing frame fixed to the upper end surface of the side frame, a rotating sleeve is fixed to the sleeve fixing frame, and a feeding shaft pipe is rotatably fitted at the center position of the rotating sleeve.

[0015] The filter assembly includes a filter bin plate connected to the lower end of the feeding shaft pipe through a flange, a plurality of connecting rods for fixed connection are arranged on the filter bin plate, the lower end surface of the connecting rod is fixedly connected with the pump wheel assembly, a plurality of stirring rods for stirring are fixed to the connecting rod, and an annular filter screen is fixed between the filter bin plate and the pump wheel assembly.

[0016] The pump wheel assembly includes a pump wheel housing fixedly connected with a plurality of connecting rods through bolts, a pump wheel mounting plate is fixed at the center of the pump wheel housing, and a plurality of pump wheel vanes are arranged between the pump wheel housing and the pump wheel mounting plate.

[0017] The impeller assembly includes a plurality of impeller fixing rods fixed at one end to the rotating base assembly, an impeller housing is fixedly connected to the upper end surface of the impeller fixing rod, an impeller fixing plate is fixed at the center position of the impeller housing, a plurality of impeller vanes are fixedly installed between the impeller housing and the impeller fixing plate, and the plurality of impeller vanes and the impeller housing are a matching mechanism with the pump wheel vanes and the pump wheel housing.

[0018] Further, the treatment bin includes a circular table bin body arranged in the slag discharge bin, a fixed support plate is fixedly welded to the outer wall of the circular table bin body, and the fixed support plate is fixedly welded to the slag discharge bin and the side frame, an overflow baffle is arranged at the upper end outlet of the circular table bin body, and a plurality of slag discharge holes are arranged at the bottom of the circular table bin body.

[0019] Furthermore: the driving mechanism includes a driving wheel fixed on the outer wall of the upper end of the feed pipe assembly and a motor fixing plate fixed on the motor bracket, a motor is fixedly mounted on the motor fixing plate, and the output end of the motor is connected to the driving wheel through a pulley.

[0020] Further: the rotating base assembly includes a base fixing frame fixed on the upper end surface of the base, a rotating base is fixed at the center position of the base fixing frame, the rotating base passes through the bottom surface of the processing chamber, and rotates with the bottom surface of the processing chamber. A sealing plate for sealing the bottom of the processing chamber is fixed at one end of the rotating base passing through the bottom surface of the processing chamber.

[0021] Furthermore: the processing mechanism also includes a centrifugal wheel assembly for further separating silicon slag, the centrifugal wheel assembly includes a connecting flange fixedly connected to the lower end face of the impeller housing by bolts, a top cover baffle is welded to the lower end face of the connecting flange, a plurality of centrifugal blades are fixedly welded between the top cover baffle and the sealing plate, and a plurality of scraping grooves for cleaning quartz sand are provided on the impeller blades.

[0022] Further: the processing mechanism also includes a limiting shaft assembly for limiting the coaxiality of the pump wheel assembly and the impeller assembly, the limiting shaft assembly includes a bearing seat fixed at the center position of the rotating base, a rotating shaft is rotatably fitted in the bearing seat, the top key of the rotating shaft is connected to a connecting kit, and the pump wheel mounting plate is fixedly installed on the connecting kit.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The processing mechanism provided by the present invention is such that when silicon slag is continuously processed, the silicon slag after preliminary washing and mixing is further dispersed at the impeller assembly. Quartz sand particles are dispersed from the silicon slag muddy mixture and rub and collide with the blades, forming the first stage of cleaning; then, the impeller assembly is driven to rotate and centrifugally ejected. The ejected quartz sand particles and impurity slurry collide and rub with the impeller assembly, forming the second stage of cleaning of the quartz sand; in this process, the impeller assembly is driven to rotate by the rotating quartz sand and impurity slurry, and then the mixture is centrifuged and ejected through the impeller assembly, thereby fully stripping off the impurities coated on the quartz sand particles and fully mixing with the flocculation liquid during continuous stirring, so that the flocculant and other liquids can fully react with the impurities in the mixed liquid, while at the same time cleaning the quartz sand to a greater extent, making it easier to recycle.

[0025] 2. The pump wheel assembly and impeller assembly provided in the present invention can achieve smooth differential rotation of the pump wheel assembly and the impeller assembly through hydraulic coupling, which can not only meet the speed requirement for centrifugal separation of materials at the bottom of the processing bin, but also ensure the mixing, stirring and filtering speed requirements of the filter assembly and the pump wheel assembly, while avoiding the technical problems of being unable to rotate at high speed or excessive rotation load due to the large amount of solid matter and high hydraulic pressure at the bottom of the processing bin when the motor is directly driven.

[0026] 3. The centrifugal wheel assembly provided in the present invention is provided with a centrifugal wheel assembly at the bottom of the impeller assembly. When the impeller assembly rotates, it drives the centrifugal wheel assembly to rotate together, and the slag is centrifugally thrown out in the horizontal direction of the circumference through the multiple centrifugal blades provided by the centrifugal wheel assembly. During this process, the quartz sand particles in the slag collide and rub with the centrifugal blades and the scraping grooves provided on the centrifugal blades, thereby cleaning the quartz sand particles again. The repeated friction and impact make the quartz sand particles clean to a greater extent, and at the same time, it is more conducive to the separation of the quartz sand particles from other impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a structural schematic diagram of a silicon slag treatment device for producing sodium silicate according to the present invention;

[0029] Figure 2 This is a top view of a silicon slag treatment device for producing sodium silicate according to the present invention;

[0030] Figure 3 This invention Figure 2 Cross-sectional view along AA;

[0031] Figure 4 It is a schematic diagram of the internal component structure of the processing chamber of the present invention;

[0032] Figure 5 It is a schematic diagram of the internal structure of the processing mechanism of the present invention;

[0033] Figure 6 It is a schematic structural diagram of the pump wheel assembly and the impeller assembly of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the centrifugal wheel assembly of the present invention.

[0035] The following are the descriptions of the reference numerals:

[0036] 1, rack; 2, residue discharge bin; 3, overflow bin; 4, treatment bin; 5, treatment mechanism; 6, driving mechanism; 7, silicon residue feeding bin; 8, flushing pipeline; 11, base; 12, side frame; 13, motor support; 41, round table bin body; 42, fixed support plate; 43, overflow baffle; 44, residue discharge hole; 51, feeding pipe assembly; 52, filtering assembly; 53, pump wheel assembly; 54, impeller assembly; 55, centrifugal wheel assembly; 56, rotating base assembly; 57, limiting shaft assembly; 61, motor; 62, motor fixing plate; 63, driving wheel; 511, feeding shaft pipe; 512, sleeve fixing frame; 513, rotating sleeve; 521, filtering bin plate; 522, filtering screen; 523, connecting rod; 524, stirring rod; 531, pump wheel housing; 532, pump wheel mounting plate; 533, pump wheel hinge; 541, impeller housing; 542, impeller fixing plate; 543, impeller hinge; 544, impeller fixing rod; 551, connecting flange; 552, top cover baffle; 553, centrifugal rotating blade; 561, rotating base; 562, base fixing frame; 563, sealing plate; 571, connecting sleeve; 572, rotating shaft; 573, bearing seat. DETAILED DESCRIPTION

[0037] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In the description of the present application, it needs to be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The present application will be further described below in conjunction with the drawings:

[0040] like Figure 1-Figure 7 As shown, a silicon slag processing device for producing sodium silicate comprises:

[0041] The frame 1 includes a base 11, side frames 12 are fixedly welded on both sides of the base 11, and a motor bracket 13 is welded at one end of the base 11; a movable wheel or a fixed shock-absorbing mechanism can be set at the bottom of the frame 1 as needed, and the side frame 12 includes two side frames fixedly welded on the extension structure on both sides of the frame 1, and a truss on the top for installing the processing mechanism 5 and the silicon slag feeding bin 7.

[0042] A slag discharge bin 2 is provided with a processing bin 4 for separating silicon slag in the slag discharge bin 2, and an overflow bin 3 is provided above the slag discharge bin 2. The slag discharge bin 2 is a bin body that is buckled together at the top and bottom and fixed in the middle by bolts. The bottom of the slag discharge bin 2 is an inclined surface for discharging treated quartz sand. The top end face of the slag discharge bin 2 and the surrounding welded panels form an overflow bin 3 for collecting overflowed sodium silicate solution and condensed gel. The upper port of the processing bin 4 is connected to the overflow bin 3, and the bottom of the processing bin 4 is provided with a slag discharge hole 44 connected to the slag discharge bin 2; the silicon slag is processed in the processing bin 4, and the treated quartz sand accumulates at the bottom of the processing bin 4 and is squeezed out from the slag discharge hole 44. The sodium silicate solution and impurity colloid overflow from the upper end of the processing bin 4 to the overflow bin 3 for collection, and then are filtered and separated.

[0043] The silicon slag feeding bin 7 is arranged above the slag discharge bin 2, and the feeding port of the silicon slag feeding bin 7 is connected to the flushing pipe 8; the silicon slag material enters the processing bin 4 from the silicon slag feeding bin 7, and the flushing pipe 8 is externally connected to a high-pressure device. The clean water or the filtered solution in the overflow bin 3 is used to dilute and flush the silicon slag when the silicon slag enters the processing bin 4, and the flocculant is sent into the processing bin 4 together with the cleaning water.

[0044] It also includes a processing mechanism 5 for separating silicon slag. The processing mechanism 5 is rotatably engaged in the processing bin 4. The upper end of the processing mechanism 5 is equipped with a driving mechanism 6 for driving the processing mechanism 5 to rotate, and the mating ends of the processing mechanism 5 and the driving mechanism 6 are connected to the silicon slag feed bin 7 and the flushing pipe 8; flushing water, flocculant and other liquid medicines and silicon slag enter the processing mechanism 5 from the upper port of the processing mechanism 5, the driving mechanism 6 drives the processing mechanism 5 to rotate, and the processing mechanism 5 stirs and mixes the silicon slag, and centrifugally separates it.

[0045] The processing mechanism 5 includes a rotating base assembly 56 that rotates and fits at the bottom of the processing chamber 4. An impeller assembly 54 is fixed above the base assembly 56, and the impeller assembly 54 is arranged inside the processing chamber 4. A pump wheel assembly 53 is provided above the impeller assembly 54, and the pump wheel assembly 53 and the impeller assembly 54 are a hydraulic coupling mechanism. The impeller assembly 54 cooperates with the rotating base assembly 56 as a driven mechanism, and is driven by no power element itself; a filter assembly 52 is fixed at the upper end of the pump wheel assembly 53, and a feed pipe assembly 51 for driving the pump wheel assembly 53 to rotate and feed is fixed at the upper end of the filter assembly 52, and the top of the feed pipe assembly 51 cooperates with the driving mechanism 6 and is connected to the silicon slag feeding bin 7; the pump wheel assembly 53 is fixedly connected to the filter assembly 52 and the feed pipe assembly 51, and as an active mechanism, it is driven by the driving mechanism 6 to rotate actively; the impeller assembly 54 and the pump wheel assembly 53 are as shown Figure 3 and Figure 6 As shown, they are arranged relative to each other, with a clearance fit between them and no hard connection. The impeller assembly 54 and the pump wheel assembly 53 are provided with blades that are mirror images of each other. During the rotation process, the continuously fed silicon slag mixture is used as the medium, and the silicon slag mixture thrown out when the pump wheel assembly 53 rotates at high speed drives the impeller assembly 54 to rotate; the pump wheel assembly 53 and the impeller assembly 54 are hydraulically coupled, so that the pump wheel assembly 53 and the impeller assembly 54 can rotate smoothly at different speeds, which can not only meet the speed requirements for centrifugal separation of materials at the bottom of the processing bin 4, but also ensure the mixing, stirring and filtering speed requirements of the filter assembly 52 and the pump wheel assembly 53, while avoiding the technical problems of being unable to rotate at high speed or excessive rotational load due to the large amount of solid matter and high hydraulic pressure at the bottom of the processing bin 4 when the motor is directly driven.

[0046] In specific work, the driving mechanism 6 drives the processing mechanism 5 to rotate, and the silicon slag is continuously fed into the feeding pipe assembly 51 from the feeding bin 7, at the same time, the high-pressure flushing water and the flocculating agent and other liquid medicine enter the feeding pipe assembly 51 from the flushing pipeline 8; after being diluted and mixed in the filtering assembly 52, part of the solution is filtered out from the filtering assembly 52 to the processing bin 4 under the action of centrifugal force. Under the continuous feeding of the silicon slag, the mixed silicon slag mixture is pushed to the pump wheel assembly 53, and after being stirred and dispersed by the preliminary flushing, when passing through the pump wheel assembly 53, the blades arranged on the pump wheel assembly 53 further disperse the silicon slag mixture. The quartz sand particles are dispersed from the silicon slag mud mixture, and rub and collide with the blades to form the first-stage cleaning; and then the quartz sand and the impurity thick slurry are centrifugally thrown out by the pump wheel assembly 53, and collide and rub with the impeller assembly 54 to form the second-stage cleaning of the quartz sand; in this process, the impeller assembly 54 is rotated by the rotating quartz sand and the impurity thick slurry, and then the mixture is centrifugally thrown out by the impeller assembly 54, so that the impurities wrapped on the quartz sand particles are fully stripped, and the flocculating agent and other liquid medicine are fully mixed in the continuous stirring to enable the flocculating agent and other liquid medicine to fully produce a gelation reaction with the impurities in the mixed liquid, and the quartz sand is cleaned to a greater extent, which is convenient for recycling.

[0047] The quartz sand particles separated by the impeller assembly 54 are pushed to the bottom of the processing bin 4 under the action of centrifugal force and gravity, and are continuously discharged from the discharge hole 44 to the discharge bin 2, and the sodium silicate solution and the flocculated impurities are continuously rotated and stirred in the processing bin 4, and finally overflow from the top of the processing bin 4 to the overflow bin 3, and are repeatedly used as cleaning water after being filtered and impurities removed, until the concentration of the sodium silicate solution reaches a certain value or the sodium silicate solution is concentrated and recovered according to the amount of silicon slag treatment; in this way, a large amount of silicon slag generated in the continuous production of the sodium silicate solution can be efficiently treated, and the purpose of saving energy and reducing production cost is achieved.

[0048] As an embodiment of the present application as shown in Figure 3 and Figure 4 The processing bin 4 includes a circular table bin body 41 arranged in the discharge bin 2, a fixed support plate 42 is fixedly welded on the outer wall of the circular table bin body 41, and the fixed support plate 42 is fixedly welded with the discharge bin 2 and the side frame 12, an overflow baffle 43 is arranged at the upper end outlet of the circular table bin body 41, and a plurality of discharge holes 44 are arranged at the bottom of the circular table bin body 41.

[0049] During specific operation, when the quartz sand particles centrifugally ejected by the processing mechanism 5 hit the inner wall of the conical bin body 41, the quartz sand particles are further stripped of impurities coated on their surface by the impact; and the conical inner wall is set to guide the quartz sand particles when the quartz sand particles hit, preventing them from moving upward, thereby making it more conducive for the quartz sand to move and settle to the bottom of the conical bin body 41.

[0050] As an embodiment of the present invention, Figure 4 As shown: the driving mechanism 6 includes a driving wheel 63 fixed on the outer wall of the upper end of the feed pipe assembly 51 and a motor fixing plate 62 fixed on the motor bracket 13, the motor 61 is fixedly mounted on the motor fixing plate 62, and the output end of the motor 61 is connected to the driving wheel 63 through a pulley; the driving wheel 63 is fixed to the outer wall of the feed pipe assembly 51 by a clamping ring and other components, and the motor 61 rotates the feed pipe assembly 51 by driving the driving wheel 63.

[0051] As an embodiment of the present invention, Figure 4 As shown: the feed pipe assembly 51 includes a kit fixing frame 512 fixed on the upper end surface of the side frame 12, and a rotating kit 513 is fixed on the kit fixing frame 512. The center position of the rotating kit 513 is rotatably matched with the feed shaft tube 511, and the inner ring of the rotating kit 513 is fixed to the feed shaft tube 511 through a retaining ring. Its load-bearing structure is fixedly connected to the kit fixing frame 512 by bolts, and the load-bearing structure and the inner ring are matched with a bearing.

[0052] As an embodiment of the present invention, Figure 3 and Figure 5 As shown, the filter assembly 52 includes a filter plate 521 connected to the lower end of the feed shaft tube 511 through a flange, and a plurality of connecting rods 523 for fixed connection are provided on the filter plate 521. The lower end surface of the connecting rod 523 is fixedly connected to the pump impeller assembly 53. The plurality of connecting rods 523 serve as fixed connecting parts between the feed shaft tube 511 and the pump impeller assembly 53. The plurality of connecting rods 523 withstand torsional force when the feed shaft tube 511 drives the pump impeller assembly 53 to rotate. The connecting rods 523 are fixed with a plurality of stirring rods 524 for stirring. When the feed shaft tube 511 drives the pump impeller assembly 53 to rotate, the stirring rods 524 are provided to break up the viscous and muddy silicon slag and stir and mix it with the flushing water. An annular filter screen 522 is fixed between the filter plate 521 and the pump impeller assembly 53. The filter screen 522 is fixed between the filter plate 521 and the pump impeller assembly 53 through a flange connection, and is used to initially filter out part of the sodium silicate solution into the treatment chamber 4.

[0053] During operation, silicon slag is continuously fed into filter assembly 52. ​​During this process, excess flushing water continuously washes away the viscous, muddy silicon slag. After the initial flush, some sodium silicate solution is flushed out. Centrifugal force then filters out some of the sodium silicate solution through filter screen 522, leaving the remaining diluted slurry flowing downward to pump impeller assembly 53.

[0054] As an embodiment of the present invention, Figure 3 、 Figure 5 and Figure 6 As shown, the impeller assembly 53 includes an impeller housing 531 fixedly connected to a plurality of connecting rods 523 via bolts. The impeller housing 531 is connected to the filter screen 522 and the feed pipe assembly 51 as a whole and rotates under the drive mechanism 6. A impeller mounting plate 532 is fixed to the center of the impeller housing 531. A plurality of impeller vanes 533 are provided between the impeller housing 531 and the impeller mounting plate 532. The impeller mounting plate 532 is used to fix the plurality of impeller vanes 533. The plurality of impeller vanes 533 are arranged obliquely along the direction of rotation. Driven by the impeller housing 531, the impeller vanes 533 disperse the diluted slurry flowing into the impeller housing 531 and draw it under the impeller housing 531 for centrifugal discharge.

[0055] As an embodiment of the present invention, Figure 3 、 Figure 5 and Figure 6 As shown: the impeller assembly 54 includes multiple impeller fixing rods 544, one end of which is fixed to the rotating base assembly 56. The impeller fixing rods 544 fix the impeller assembly 54 and the rotating base assembly 56 into a whole. The upper end surface of the impeller fixing rod 544 is fixedly connected to the impeller casing 541. The impeller fixing plate 542 is fixed at the center position of the impeller casing 541. A plurality of impeller blades 543 are fixedly installed between the impeller casing 541 and the impeller fixing plate 542. The plurality of impeller blades 543 and the impeller casing 541 form a matching mechanism with the pump blades 533 and the pump casing 531. The impeller blades 543 and the pump blades 533 are arranged in a mirror-symmetrical manner.

[0056] During specific operation, the impeller assembly 54 and the pump wheel assembly 53 use the continuously fed silicon slag mixture as the medium. When the pump wheel assembly 53 rotates at high speed, the silicon slag mixture thrown out by the pump wheel blades 533 drives the multiple impeller blades 543 to rotate.

[0057] As an embodiment of the present invention, Figure 3-6As shown: the rotating base assembly 56 includes a base fixing frame 562 fixed to the upper end surface of the base 11, and the base fixing frame 562 is fixed to the upper end surface of the base 11 by bolts to carry the processing mechanism 5. A rotating base 561 is fixed at the center position of the base fixing frame 562, and the rotating base 561 passes through the bottom surface of the processing chamber 4 and rotates with the bottom surface of the processing chamber 4. A mounting hole is provided at the bottom center position of the processing chamber 4, and the rotating base 561 rotates in the mounting hole. A sealing plate 563 for sealing the bottom of the processing chamber 4 is fixed to one end of the rotating base 561 passing through the bottom surface of the processing chamber 4. The sealing plate 563 is arranged on the inner bottom surface of the processing chamber 4, and is rotated with the bottom of the processing chamber 4 through the sealing element and the bearing element to seal the bottom mounting hole of the processing chamber 4, as well as to carry and connect the processing mechanism 5.

[0058] As an embodiment of the present invention, Figure 5-7 As shown: the processing mechanism 5 also includes a centrifugal wheel assembly 55 for further separating silicon slag. The centrifugal wheel assembly 55 includes a connecting flange 551 fixedly connected to the lower end face of the impeller housing 541 by bolts. A top cover baffle 552 is welded to the lower end face of the connecting flange 551. A plurality of centrifugal blades 553 are fixedly welded between the top cover baffle 552 and the sealing plate 563. A plurality of scraping grooves for cleaning quartz sand are provided on the pump wheel blade 533. The upper end faces of the plurality of centrifugal blades 553 are welded to the top cover baffle 552, and the lower end faces thereof are welded to the sealing plate 563, which can play the role of fixedly connecting the impeller assembly 54 and the rotating base assembly 56.

[0059] During specific operation, the silicon slag mixture processed by the impeller assembly 54 is discharged from the bottom of the impeller assembly 54 and dispersed under the action of centrifugal force for sedimentation and separation. However, the initial velocity of the slag discharged by the impeller assembly 54 radiates obliquely downward to the peripheral side, and the centrifugal dispersion effect is poor. After the centrifugal wheel assembly 55 is set at the bottom of the impeller assembly 54, the impeller assembly 54 drives the centrifugal wheel assembly 55 to rotate together when rotating, and the slag is centrifugally thrown out in the horizontal direction of the peripheral side through the multiple centrifugal blades 553 provided by the centrifugal wheel assembly 55. In this process, the quartz sand particles in the slag collide and rub with the centrifugal blades 553 and the scraping grooves provided on the centrifugal blades 553, thereby cleaning the quartz sand particles again. Under the action of the centrifugal blades 553, the quartz sand particles with larger mass are also separated from other gel impurities, and enter the processing bin 4 for separate discharge.

[0060] As an embodiment of the present invention, as shown in the figure: the processing mechanism 5 also includes a limiting shaft assembly 57 for limiting the coaxiality of the pump wheel assembly 53 and the impeller assembly 54, and the limiting shaft assembly 57 includes a bearing seat 573 fixed at the center position of the rotating base 561, and a rotating shaft 572 is rotatably fitted in the bearing seat 573, and the top key of the rotating shaft 572 is connected to the connecting kit 571, and the pump wheel mounting plate 532 is fixedly installed on the connecting kit 571, and a mounting hole for fixing the connecting kit 571 is provided at the center position of the pump wheel mounting plate 532, and a through hole is provided at the center of the impeller fixing plate 542, and the rotating shaft 572 passes through the through hole.

[0061] During specific operation, in the process of coupled rotation of the pump wheel assembly 53 and the impeller assembly 54, shaking is inevitable due to the lack of a hard connection, which affects the transmission of the pump wheel assembly 53 and the impeller assembly 54 and even damages the components. Therefore, a rotating matching limit shaft assembly 57 is used at the bottom of the rotating base assembly 56 to connect the limit pump wheel assembly 53, so that the rotation of the pump wheel assembly 53 and the impeller assembly 54 is on the same axis, thereby making the equipment more stable during practical use.

[0062] Working Principle: The driving mechanism 6 drives the processing mechanism 5 to rotate, and the silicon slag is continuously fed from the feed bin 7 into the feed pipe assembly 51. At the same time, high-pressure flushing water and flocculant and other liquid chemicals enter the feed pipe assembly 51 from the flushing pipe 8. After flushing and dilution, the slag is mixed in the filter assembly 52. ​​During this period, under the action of centrifugal force, a portion of the solution is filtered out from the filter assembly 52 and into the processing bin 4. Driven by the continuous feeding of silicon slag, the mixed and stirred silicon slag mixture is pushed to the pump impeller assembly 53. After the silicon slag mixture is initially flushed and dispersed, it passes through the pump impeller assembly 53, where the blades provided by the pump impeller assembly 53 further disperse the silicon slag mixture. The quartz sand particles are dispersed from the silicon slag sludge mixture and rub and collide with the blades, forming the first stage of cleaning. Then, the quartz sand particles and impurity slurry are driven to rotate by the pump impeller assembly 53 and centrifugally thrown out. The ejected quartz sand particles and impurity slurry collide and rub with the impeller assembly 54, forming the second stage of cleaning of the quartz sand. During this process, the impeller assembly 54 is driven to rotate by the rotating quartz sand and impurity slurry, and then the mixture is centrifugally thrown out by the impeller assembly 54.

[0063] The quartz sand particles separated by the impeller assembly 54 are pushed to the bottom side of the processing bin 4 under the action of centrifugal force and gravity, and are continuously discharged into the slag discharge bin 2 through the slag discharge hole 44, while the sodium silicate solution and the flocculated impurities are continuously rotated and stirred in the processing bin 4, and finally overflow from the top of the processing bin 4 into the overflow bin 3. After filtering and removing impurities, the water is repeatedly used as cleaning water until the concentration of the sodium silicate solution reaches a certain value or the sodium silicate solution is centrally purified and recovered according to the amount of silicon slag processed. In this way, a large amount of silicon slag generated in the continuous production of the sodium silicate solution can be quickly and efficiently processed, thereby achieving the purpose of saving energy and reducing production costs.

[0064] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A silicon slag treatment device for producing sodium silicate, comprising: A frame (1), the frame (1) includes a base (11), side frames (12) are fixedly welded on both sides of the base (11), and a motor bracket (13) is welded at one end of the base (11); A slag discharge bin (2), wherein a processing bin (4) for separating silicon slag is provided in the slag discharge bin (2), an overflow bin (3) is provided above the slag discharge bin (2), an upper port of the processing bin (4) is connected to the overflow bin (3), and a slag discharge hole (44) is provided at the bottom of the processing bin (4) and is connected to the slag discharge bin (2); A silicon slag feeding bin (7), the silicon slag feeding bin (7) is arranged above the slag discharge bin (2), and a flushing pipe (8) is connected to the feeding port of the silicon slag feeding bin (7); The invention is characterized in that: it also includes a processing mechanism (5) for separating silicon slag, the processing mechanism (5) is rotatably engaged in the processing bin (4), the upper end of the processing mechanism (5) is engaged with a driving mechanism (6) for driving the processing mechanism (5) to rotate, and the mating ends of the processing mechanism (5) and the driving mechanism (6) are connected to the silicon slag feeding bin (7) and the flushing pipe (8); The processing mechanism (5) includes a rotating base assembly (56) rotatably engaged with the bottom of the processing bin (4), an impeller assembly (54) is fixed above the rotating base assembly (56), and the impeller assembly (54) is arranged inside the processing bin (4), a pump wheel assembly (53) is provided above the impeller assembly (54), and the pump wheel assembly (53) and the impeller assembly (54) form a hydraulic coupling mechanism, a filter assembly (52) is fixed at the upper end of the pump wheel assembly (53), and a feed pipe assembly (51) for driving the pump wheel assembly (53) to rotate and feed is fixed at the upper end of the filter assembly (52), and the top of the feed pipe assembly (51) cooperates with the driving mechanism (6) and is connected to the silicon slag feed bin (7); The feed pipe assembly (51) includes a kit fixing frame (512) fixed to the upper end surface of the side frame (12), a rotating kit (513) is fixed on the kit fixing frame (512), and the center position of the rotating kit (513) is rotatably matched with the feed shaft tube (511); The filter assembly (52) includes a filter plate (521) connected to the lower end of the feed shaft tube (511) via a flange, a plurality of connecting rods (523) for fixed connection are provided on the filter plate (521), the lower end surface of the connecting rod (523) is fixedly connected to the pump wheel assembly (53), a plurality of stirring rods (524) for stirring are fixed on the connecting rod (523), and an annular filter screen (522) is fixed between the filter plate (521) and the pump wheel assembly (53); The impeller assembly (53) includes an impeller housing (531) fixedly connected to a plurality of connecting rods (523) via bolts, a impeller mounting plate (532) being fixed at the center of the impeller housing (531), and a plurality of impeller rotor blades (533) being provided between the impeller housing (531) and the impeller mounting plate (532); The impeller assembly (54) includes a plurality of impeller fixing rods (544) one end of which is fixed to the rotating base assembly (56); the upper end surface of the impeller fixing rod (544) is fixedly connected to the impeller housing (541); an impeller fixing plate (542) is fixed at the center of the impeller housing (541); a plurality of impeller rotor blades (543) are fixedly installed between the impeller housing (541) and the impeller fixing plate (542); and the plurality of impeller rotor blades (543) and the impeller housing (541) form a matching mechanism with the pump rotor blades (533) and the pump housing (531).

2. The silicon slag treatment equipment for producing sodium silicate according to claim 1, wherein: The processing bin (4) includes a truncated cone bin body (41) arranged in the slag discharge bin (2), a fixed support plate (42) is fixedly welded to the outer wall of the truncated cone bin body (41), and the fixed support plate (42) is fixedly welded to the slag discharge bin (2) and the side frame (12), an overflow baffle (43) is provided at the upper end outlet of the truncated cone bin body (41), and a plurality of slag discharge holes (44) are provided on the circumferential side of the bottom of the truncated cone bin body (41).

3. The silicon slag treatment equipment for producing sodium silicate according to claim 1, wherein: The driving mechanism (6) includes a driving wheel (63) fixed to the outer wall of the upper end of the feed pipe assembly (51) and a motor fixing plate (62) fixed to the motor bracket (13). The motor (61) is fixedly mounted on the motor fixing plate (62), and the output end of the motor (61) is connected to the driving wheel (63) via a pulley.

4. The silicon slag treatment equipment for producing sodium silicate according to claim 1, wherein: The rotating base assembly (56) includes a base fixing frame (562) fixed to the upper end surface of the base (11), a rotating base (561) is fixed at the center position of the base fixing frame (562), the rotating base (561) passes through the bottom surface of the processing chamber (4) and rotates with the bottom surface of the processing chamber (4), and a sealing plate (563) for sealing the bottom of the processing chamber (4) is fixed to one end of the rotating base (561) passing through the bottom surface of the processing chamber (4).

5. The silicon slag treatment equipment for producing sodium silicate according to claim 4, wherein: The processing mechanism (5) further includes a centrifugal wheel assembly (55) for further separating silicon slag. The centrifugal wheel assembly (55) includes a connecting flange (551) fixedly connected to the lower end surface of the impeller housing (541) by bolts. A top cover baffle (552) is welded to the lower end surface of the connecting flange (551). A plurality of centrifugal rotor blades (553) are fixedly welded between the top cover baffle (552) and the sealing plate (563). A plurality of scraping grooves for cleaning quartz sand are provided on the impeller rotor blades (533).

6. The silicon slag processing equipment for producing sodium silicate according to claim 5, wherein: The processing mechanism (5) further includes a limiting shaft assembly (57) for limiting the coaxiality of the pump wheel assembly (53) and the impeller assembly (54), the limiting shaft assembly (57) including a bearing seat (573) fixed at the center position of the rotating base (561), a rotating shaft (572) rotatably fitted in the bearing seat (573), a top key of the rotating shaft (572) connected to a connecting kit (571), and the pump wheel mounting plate (532) fixedly mounted on the connecting kit (571).

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