CN115715961A - Liquid circulation soda ash preparation system - Google Patents

Abstract

The application relates to the technical field of soda preparation, and particularly discloses a liquid circulation soda preparation system which comprises a carbonization tower, a mother liquor pool and a forging furnace, and further comprises a mounting frame, wherein a containing frame is arranged on the mounting frame, one end of the containing frame is arranged in an opening manner, a filter pressing plate is arranged at the opening, the outer peripheral wall of one end of the filter pressing plate is in sliding fit with the inner peripheral wall of the containing frame, a filter cavity is defined between the filter pressing plate and the containing frame, a feed inlet for enabling solution flowing out of the carbonization tower to enter the filter cavity is formed in the top of the containing frame, a solution used for filtering the filter cavity is arranged between the containing frame and the filter pressing plate, and filtered mother liquor is pumped out to a filter component of the mother liquor pool; the filter pressing component is used for driving the accommodating frame and the filter pressing plate to approach or depart from each other; and the discharging mechanism is used for discharging the precipitate in the filtering cavity out of the filtering cavity. The method has the effect of reducing the residual attached water on the sodium bicarbonate precipitate so as to improve the production purity of the finished sodium carbonate product.

Description

Liquid circulation soda ash preparation system

Technical Field

The application relates to the field of soda ash preparation technology, in particular to a liquid circulation soda ash preparation system.

Background

Soda ash, also known as soda or soda ash, is an inorganic chemical raw material classified as salt; soda ash is widely used in places such as daily washing, acid neutralization and food processing, and is also commonly used for producing glass products, ceramic glaze and the like.

In the related technology, the liquid circulation type soda production system comprises a carbonization tower, a filtering tank, a mother liquor tank and a forging furnace, ammonia brine is sent into the carbonization tower by a pump, and the ammonia brine and compressed gas perform carbonization reaction in the carbonization tower to absorb carbon dioxide so as to produce turbid solution with sodium bicarbonate precipitate in the carbonization tower; then the turbid solution flows into a filter tank from the carbonization tower, mother liquor is separated from sodium bicarbonate under the filtration of a filter screen in the filter tank, then the filtered mother liquor flows into a mother liquor tank, the ammonium chloride is separated out after ammonia gas and sodium chloride are added into the mother liquor in the mother liquor tank, and then the reacted mother liquor is pumped into the carbonization tower for liquid circulation; and the sodium bicarbonate is sent into a forging furnace and calcined to obtain the soda ash.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the sodium bicarbonate sediment in the turbid solution is filtered and separated, part of attached water often remains on the sodium bicarbonate sediment, and because the attached water often contains sodium chloride, the sodium chloride in the attached water is separated out and mixed in the sodium carbonate in the process of preparing the sodium carbonate by calcining the sodium bicarbonate, so that the separated sodium chloride reduces the finished product purity of the sodium carbonate.

Disclosure of Invention

In order to improve the finished product production purity of soda ash, the application provides a liquid circulation soda ash preparation system.

The application provides a liquid circulation soda preparation system adopts following technical scheme:

the utility model provides a liquid circulation soda preparation system, includes carbonizer, mother liquor pond and forging furnace, still includes the mounting bracket, be provided with the holding frame on the mounting bracket, the one end of holding frame is the opening setting, just the opening part is provided with the filter-pressing board, the one end periphery wall of filter-pressing board with the interior perisporium of holding frame slides the laminating, the filter-pressing board with enclose into the filter chamber between the holding frame, the holding frame top is seted up and is supplied the solution that the carbonizer flows to get into the feed inlet of filter chamber, the holding frame with be provided with between the filter-pressing board:

the filtering component is used for filtering the solution and pumping the filtered mother liquor to the mother liquor pool;

the filter pressing assembly is used for driving the accommodating frame and the filter pressing plate to approach or separate from each other;

and the discharging mechanism is used for discharging the precipitate in the filtering cavity out of the filtering cavity.

By adopting the technical scheme, when the soda is prepared, turbid solution flowing out of the carbonization tower is filtered in the filter cavity along the feeding hole, then the solution is filtered by the filter assembly, filtered mother liquor is pumped out to the mother liquor pool, and the filtered residual sodium bicarbonate precipitate is retained in the filter cavity; then start the filter pressing subassembly, the filter pressing subassembly orders about holding frame and filter-pressing board and is close to each other for the space of filter chamber between holding frame and the filter-pressing board reduces by a wide margin, so that holding frame and filter-pressing board extrude the drainage to the deposit of inside, thereby remaining attached water on the sodium bicarbonate deposit is reduced by a wide margin, treat the filter-pressing completion back, discharge the sodium bicarbonate deposit in the filter chamber through discharge mechanism, attached water on the sodium bicarbonate deposit at this moment reduces by a wide margin, at the in-process of calcining sodium bicarbonate preparation soda, reduced the sodium chloride and educed the volume owing to attached water reduces, the effectual finished product purity that improves soda.

Optionally, the filter assembly respectively is provided with a set ofly in the top and the bottom of holding frame, the filter assembly includes filtrate pipe and suction pump, the filtrate pipe sets firmly on the pressure filter board, just the length direction of filtrate pipe with the direction of sliding of pressure filter board is unanimous, a plurality of water strainer holes have been seted up to the periphery side of filtrate pipe, set up the perforation that supplies the filtrate pipe to run through on the holding frame, the periphery side of filtrate pipe with the interior perisporium of fenestrate laminating that slides, the suction pump intake the end with the one end that the holding frame was worn out to the drain pipe is linked together, the outlet end of suction pump with the intercommunication has flexible drain pipe between the mother liquor pond.

Through adopting above-mentioned technical scheme, back in the muddy solution that flows out at the carbonators carries out the filter chamber along the feed inlet, the suction pump passes through the solution of filtrating pipe extraction filter chamber in, then the filtration pore pair in the filtrate pipe sodium bicarbonate sediment in the solution filters for mother liquor in the solution takes place to separate with the sediment, and sediment this moment is held back in the filter chamber, and the mother liquor is by the suction pump suction in the mother liquor pond. The mother liquor flowing into the mother liquor pool can be used for producing ammonium chloride and sodium bicarbonate next time, so that the cyclic utilization of the liquid is realized.

Optionally, the filter-pressing subassembly respectively is provided with a set ofly in the top and the bottom of holding frame, the filter-pressing subassembly includes slide rail, slide, wedge, driver and resets, the slide rail set firmly in on the filter-pressing board, the slide is along the perpendicular to the direction slidable mounting of filter-pressing board sliding direction in on the slide rail, the driver set up in be used for ordering about on the filter-pressing board the slide slides, the wedge set firmly in on the outer wall of holding frame, just the inclined plane of wedge is kept away from the slide rail, on the slide in the wedge is kept away from one side of slide rail has set firmly the briquetting, a side of briquetting with the inclined plane slip laminating of wedge, the piece that resets is used for the slide is kept away from drive about during the wedge the filter-pressing with the holding frame returns the normal position.

Through adopting above-mentioned technical scheme, treat that a large amount of sodium bicarbonate deposit and be held back in the filter chamber, for reducing to deposit the attached water of adhesion, the staff starts the driver, and the driver orders about the slide and slides, then gliding slide presses the wedge through the briquetting to make wedge and slide rail be close to each other, thereby realize that the mutual slip between holding frame and the pressure filter plate is close to, carry out the extrusion drainage of inside sodium bicarbonate deposit through the holding frame that is close to each other and pressure filter plate. After filter-pressing drainage is finished, the driver drives the sliding plate to slide and return to the original position, and then the reset piece drives the filter-pressing plate and the containing frame to return to the original position, so that the discharging mechanism can discharge sediments conveniently.

Optionally, the reset piece is a reset spring arranged between the slide rail and the wedge block, one end of the reset spring is fixedly connected with one end face, facing the slide rail, of the accommodating frame, and the other end of the reset spring is fixedly connected with the slide rail.

By adopting the technical scheme, when the wedge-shaped block is not pressed by the pressing block, the reset spring is in a free telescopic state, and a stable filter cavity is defined between the pressing filter plate and the accommodating frame; when the pressing block presses the wedge-shaped block, the return spring is compressed, and the filter cavity is gradually reduced at the moment so as to perform filter pressing operation of sodium bicarbonate precipitation; and after the filter pressing is finished and the pressing block does not press the wedge block any more, the reset spring loses pressure and expands, so that the filter pressing plate and the containing frame return to the original position.

Optionally, a cover plate is fixedly arranged on the sliding plate at the top of the accommodating frame, the bottom of the cover plate is in sliding fit with the top surface of the accommodating frame, and when the sliding plate drives the pressing block to press the wedge block, the cover plate slides to cover the feed port.

Through adopting above-mentioned technical scheme, pass through the briquetting at the gliding slide in-process of top and press the wedge, the overlay on the slide of top still carries out the shutoff operation of feed inlet to avoid a small amount of solution or precipitate to discharge from the feed inlet in the process of filter-pressing.

Optionally, a plurality of filtrate holes have been seted up on the diapire of holding frame, are located set firmly the cover on the slide at holding frame top the sunshade in filtrate hole, the sunshade with the diapire of holding frame slides the laminating, orders about as gliding slide the briquetting is pressed during the wedge, the sunshade slides and keeps away from the filtrate hole.

Through adopting above-mentioned technical scheme, two filter pressing subassemblies about order about the in-process that holding frame and filter-pressing board are close to each other jointly, the gliding slide of lower part drives the sunshade and slides to make the sunshade no longer cover the filtrate hole, at the in-process of the inner wall extrusion sodium bicarbonate of holding frame and filter-pressing board sediment this moment, extrude partly drainage along the drainage hole of filtrate pipe of water, another part is discharged along the filtrate hole, thereby realized the precipitate and attached effective separation of water.

Optionally, a water collecting hopper is fixedly arranged at the bottom of the accommodating frame, an opening at one end of the water collecting hopper faces the plurality of filtrate holes, an opening at the other end of the water collecting hopper is communicated with a flexible liquid feeding pipe, and one end, far away from the water collecting hopper, of the flexible liquid feeding pipe is communicated with the mother liquor pool.

Through adopting above-mentioned technical scheme, set up the collection of water catch bowl in order to carry out the exhaust mother liquor of filtrate hole department, then the mother liquor that flexible liquid sending pipe collected the water catch bowl delivers to the mother liquor pond in to reduce the waste of mother liquor, so that carry out high-efficient cyclic utilization in the mother liquor gets into the mother liquor pond.

Optionally, a discharge port is formed in one side wall of the accommodating frame, and the discharge mechanism includes a vibration assembly and an opening and closing assembly for opening or closing the discharge port;

the vibration assembly comprises a plurality of supporting springs and a vibrator, wherein the supporting springs are fixedly arranged on the mounting frame and used for elastically supporting the accommodating frame on the mounting frame, and the vibrator is fixedly arranged on the outer wall of the accommodating frame.

Through adopting above-mentioned technical scheme, treat that the filter pressing subassembly accomplishes the filter-pressing back of precipitate, the filter pressing subassembly orders about the holding frame and keeps away from each other with the filter-pressing board, then the discharge gate is opened to the subassembly that opens and shuts, and the vibrator orders about the holding frame and takes place high-frequency vibration to through high-frequency vibration with the precipitate of filter chamber along discharge gate vibration discharge.

Optionally, the opening and closing assembly comprises a sealing plate arranged on the accommodating frame in a sliding manner and a linear power part used for driving the sealing plate to cover the discharge hole in a sliding manner or to be away from the discharge hole in a sliding manner.

Through adopting above-mentioned technical scheme, sharp power spare orders about the shrouding and slides along the outer wall of holding frame, can realize that the shrouding covers or slides and open the sliding of discharge gate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the filtering component filters the solution, the filtered mother liquor is pumped into the mother liquor pool, the filtered residual sodium bicarbonate precipitate is trapped in the filtering cavity, and then the filter pressing component drives the accommodating frame and the filter pressing plate to be close to each other, so that the space of the filtering cavity between the accommodating frame and the filter pressing plate is greatly reduced, the accommodating frame and the filter pressing plate squeeze the inner precipitate for drainage, thereby greatly reducing the residual attached water on the sodium bicarbonate precipitate and reducing the influence of the attached water on the purity of the soda production;

2. the driver drives the sliding plate to slide, and then the sliding plate presses the wedge block through the pressing block to enable the wedge block and the sliding rail to be close to each other, so that the accommodating frame and the pressing plate are enabled to slide and close to each other, and the sodium bicarbonate sediment in the accommodating frame and the pressing plate which are close to each other are squeezed to drain water;

3. two filter pressing assemblies about order about the in-process that holding frame and filter-pressing board are close to each other jointly, the gliding slide of lower part drives the sunshade and slides to make the sunshade open the filtrate hole, then at the in-process of the inner wall extrusion sodium bicarbonate of holding frame and filter-pressing board sediment, partly along the drainage hole discharge of filtrate pipe, another part is discharged along the filtrate hole of the mother liquor of extruding, thereby realized the effective separation of precipitate and attached water.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view showing the receiving frame and the wedge;

fig. 4 is a schematic diagram showing a slide plate, a press block, and a wedge block.

Reference numerals: 1. a carbonization tower; 2. a mounting frame; 3. an accommodating frame; 31. a water collecting hopper; 32. a flexible liquid delivery pipe; 33. a filtrate well; 4. pressing the filter plate; 41. an air supply hose; 411. a control valve; 5. a filter assembly; 51. a filtrate pipe; 511. water filtering holes; 52. a water pump; 53. a flexible liquid outlet pipe; 6. a filter pressing assembly; 61. a slide rail; 62. a slide plate; 621. a cover plate; 623. briquetting; 624. a slider; 63. a wedge block; 64. a driver; 65. a reset member; 651. a return spring; 71. a vibrating assembly; 711. a support spring; 712. a vibrator; 72. an opening and closing assembly; 721. closing the plate; 722. a linear power member.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a liquid circulation soda preparation system. Referring to fig. 1 and 2, the liquid circulation soda ash preparation system comprises a carbonization tower 1, a mother liquor pool and a forging furnace, wherein a gas supply pipeline for supplying ammonia gas and carbon dioxide gas to the inside of the carbonization tower 1 is arranged in the carbonization tower 1, the bottom of the carbonization tower 1 is communicated with a liquid supply pipe, and a control valve is arranged on the liquid supply pipe. One side of carbonators 1 is erected on the ground and is equipped with mounting bracket 2, and elastic support has holding frame 3 on mounting bracket 2, and 3 width direction's of holding frame one end is the opening setting, is provided with filter-pressing plate 4 in the opening part on holding frame 3, and filter-pressing plate 4 is close to the one end periphery wall of holding frame 3 and the interior perisporium of holding frame 3 and slides the laminating, encloses into the filter chamber between filter-pressing plate 4 and the holding frame 3.

In order to facilitate the carbonization tower 1 to guide the solution into the filter cavity, the top of the accommodating frame 3 is provided with a feed inlet which is right opposite to a water outlet of the liquid supply pipe, and in order to efficiently separate precipitates and mother liquor in the solution entering the filter cavity, a filter assembly 5, a filter pressing assembly 6 and a discharging mechanism are arranged between the accommodating frame 3 and the filter pressing plate 4; the filtering component 5 is used for filtering the solution in the filtering cavity and pumping the filtered mother liquor to the mother liquor pool; the filter pressing assembly 6 is used for driving the accommodating frame 3 and the filter pressing plate 4 to be close to or far away from each other so as to realize squeezing drainage of sediments trapped in the filter cavity; the discharging assembly is used for discharging the sediment in the filtering cavity out of the filtering cavity.

Referring to fig. 1, in order to separate mother liquor from precipitates in a solution in a filter cavity, a filter assembly 5 includes a filtrate pipe 51, a water pump 52 and a flexible liquid outlet pipe 53, the filtrate pipe 51 is welded on an inner wall of the filter pressing plate 4, a length direction of the filtrate pipe 51 is consistent with a sliding direction of the filter pressing plate 4, and a plurality of water filtering holes 511 are annularly distributed on an outer circumferential side of the filtrate pipe 51. The accommodating frame 3 is provided with a through hole for the filter liquid pipe 51 to penetrate through, the peripheral side of the filter liquid pipe 51 is in sliding fit with the inner peripheral wall of the through hole, the water inlet end of the water suction pump 52 is connected with a flexible connecting pipe, the flexible connecting pipe is communicated with one end of the filter liquid pipe 51 penetrating through the accommodating frame 3, and the water outlet end of the water suction pump 52 is communicated with the mother liquid pool through a flexible liquid outlet pipe 53.

In order to reduce the attached water on the filtered sodium bicarbonate precipitate, referring to fig. 1, 3 and 4, the filter pressing assemblies 6 are respectively provided with one group at the top and the bottom of the accommodating frame 3, and each group of filter pressing assemblies 6 comprises a slide rail 61, a slide plate 62, a wedge-shaped block 63, a driver 64 and a reset piece 65; the slide rail 61 is fixed on the filter press plate 4 by bolts, and the slide plate 62 is slidably mounted on the slide rail 61 along a direction perpendicular to the sliding direction of the filter press plate 4.

The wedge block 63 is welded on the outer wall of the accommodating frame 3, and the inclined surface of the wedge block 63 is located on a side surface of the wedge block 63 away from the slide rail 61, and the inclined surface is inclined towards one end of the feed port and away from the slide rail 61. A pressing block 623 is welded on one side, far away from the slide rail 61, of the wedge block 63 on the slide plate 62, one side, facing the wedge block 63, of the pressing block 623 is parallel to the surface of the wedge block 63, and one side, facing the wedge block 63, of the pressing block 623 is in sliding fit with the inclined surface of the wedge block 63. Reset 65 can be reset spring 651, elastic rubber board or linear electric motor etc. and reset 65 is preferred reset spring 651 in this scheme, and reset spring 651 is provided with a plurality ofly, and the one end of a plurality of reset springs 651 and holding frame 3 towards a terminal surface fixed connection, the other end and the slide rail 61 fixed connection of slide rail 61. The driver 64 may be an electric push rod, an air cylinder, etc., in this embodiment, the driver 64 is preferably an electric push rod, the electric push rod is fixedly mounted on the filter press plate 4, a piston end of the electric push rod is fixedly connected with the sliding plate 62, and a telescopic direction of the piston end of the electric push rod is consistent with a sliding direction of the sliding plate 62.

After the mother liquor in the solution is initially extracted by the filter assembly 5, the driver 64 is started to drive the sliding plate 62 to slide close to the wedge-shaped block 63 through the driver 64, then the sliding plate 62 slides to press the wedge-shaped block 63 through the pressing block 623, so that the wedge-shaped block 63 pushes the pressing block 623 to move along one side of the wedge-shaped block 63 away from the sliding rail 61, and therefore the accommodating frame 3 and the filter pressing plate 4 slide to each other to be close to each other, and the accommodating frame 3 and the filter pressing plate 4 which are close to each other at the moment perform extrusion drainage of the sodium bicarbonate precipitate in the interior, so that the attached water on the sodium bicarbonate precipitate is reduced. After the filter pressing drainage is completed, the driver 64 drives the sliding plate 62 to slide and return to the original position, and then the return spring 651 drives the filter pressing plate 4 and the containing frame 3 to return to the original position through the restoring force, so that the discharging mechanism can discharge the sediments conveniently.

Referring to fig. 1 and 4, a cover plate 621 is integrally formed on the sliding plate 62 at the top of the accommodating frame 3, and the bottom of the cover plate 621 is in sliding fit with the top surface of the accommodating frame 3; when the sliding slide plate 62 drives the pressing block 623 to press the wedge-shaped block 63, the cover plate 621 slides to cover the feeding hole, so as to avoid overflowing of sediment in the filter pressing process. In order to improve the sliding stability of the sliding plate 62, the bottom of the covering plate 621 is welded with the sliding block 624, the surface of the accommodating frame 3 is provided with a sliding groove, the sliding direction of the sliding groove is consistent with the extending direction of the sliding rail 61, and the sliding block 624 is slidably mounted inside the sliding groove.

Referring to fig. 2, a plurality of filtrate holes 33 for filtering precipitates are spaced apart from each other on the bottom wall of the accommodating frame 3, and a sliding plate 62 at the bottom of the accommodating frame 3 is fixedly provided with a shielding plate (not shown) of the filtrate holes 33, the shielding plate is in sliding fit with the bottom wall of the accommodating frame 3, and when the sliding plate 62 drives the pressing block 623 to press the wedge block 63, the shielding plate slides away from the filtrate holes 33; when the sliding slide plate 62 returns to the home position, the shutter covers the filtrate holes 33.

In this embodiment, referring to fig. 1 and 2, a plurality of water filtering holes 511 are formed in the periphery of one end of the filter liquid pipe 51 close to the filter press plate 4, one end of the filter liquid pipe 51 close to the filter press plate 4 penetrates through the filter press plate 4, and one end penetrating through the filter press plate 4 is communicated with the air supply hose 41, the air supply hose 41 is provided with a control valve 411 for closing or opening a communication port of the air supply hose 41, one end of the air supply hose 41 far away from the filter press plate 4 is communicated with an air supply part, and the air supply part may be an air compressor, an air blower with a filter screen, or a high-pressure air storage tank storing carbon dioxide, or the like. The bottom of holding frame 3 is vertical to be provided with water collecting bucket 31, and the one end opening of water collecting bucket 31 is towards a plurality of filtrating holes 33, and water collecting bucket 31's other end opening intercommunication is provided with flexible liquid delivery pipe 32, and the one end that water collecting bucket 31 was kept away from to flexible liquid delivery pipe 32 is linked together with the mother liquor pond to carry out the production of ammonium chloride in the mother liquor pond, then carry out liquid cyclic utilization in sending into carbonization tower 1 with the mother liquor pump after the reaction.

In the process that the upper filter pressing assembly 6 and the lower filter pressing assembly 6 drive the containing frame 3 and the filter pressing plate 4 to approach each other together, the sliding plate 62 sliding on the lower portion drives the cover plate to slide, so that the cover plate does not cover the filtrate hole 33 any more, at the moment, in the process that the inner walls of the containing frame 3 and the filter pressing plate 4 extrude sodium bicarbonate to precipitate, a part of extruded water enters the filtrate pipe 51 along the filter holes 511 of the filtrate pipe 51, and mother liquor entering the filtrate pipe 51 is blown into a mother liquor tank along the flexible liquid outlet pipe 53 under the supply of air flow of the air supply piece, so that the effective separation of precipitate and attached water is realized. While another portion of the mother liquor is discharged along the filtrate holes 33 and falls under gravity into the collecting hopper 31, and then another portion of the mother liquor is discharged along the flexible liquid sending tube 32 to the mother liquor tank.

In another embodiment, the plurality of water filtering holes 511 are disposed at the periphery of the liquid filtering tube 51 near the containing frame 3, when the upper and lower filter pressing assemblies 6 drive the containing frame 3 and the filter pressing plate 4 to approach each other, the liquid filtering tube 51 and the containing frame 3 move relatively, and then the plurality of water filtering holes 511 on the liquid filtering tube 51 move to the perforated inner wall of the containing frame 3, so that the adhered sediment at the water filtering holes 511 is effectively scraped by the perforated opening edge periphery wall in the single filter pressing process of the sodium bicarbonate sediment.

Referring to fig. 1 and 2, in order to discharge the sediment entering the filter pressing in the filter cavity, the bottom wall of the accommodating frame 3 and the bottom of the filter pressing plate 4 are both disposed in an inclined shape, and a discharge port is opened on one side wall of the inclined lower side of the accommodating frame 3, and the discharge mechanism includes a vibration assembly 71 and an opening and closing assembly 72 for opening or closing the discharge port. The vibration assembly 71 includes an elastic member and a vibrator 712, the elastic member may be a telescopic rod, a rubber pad, an elastic supporting seat or a supporting spring 711, and the elastic member is a supporting spring 711 in this embodiment. The supporting springs 711 are fixedly arranged on the mounting frame 2 in a matrix shape, and the bottom of the accommodating frame 3 is fixedly connected with the top ends of the supporting springs 711, so that the accommodating frame 3 is elastically supported on the mounting frame 2 through the supporting springs 711; the vibrator 712 is a vibration motor, and the vibrator 712 is fixedly disposed on the outer wall of the accommodating frame 3 and is used for driving the accommodating frame 3 to vibrate.

The opening and closing assembly 72 includes a sealing plate 721 slidably disposed on the accommodating frame 3 and a linear power component 722, the linear power component 722 is vertically and fixedly mounted on the outer wall of the accommodating frame 3 and located above the discharge port, an output end of the linear power component 722 is fixedly connected to an upper end of the sealing plate 721, and the sealing plate 721 is driven to slide by the linear power component 722, so that the sliding sealing plate 721 is slidably covered or away from the discharge port, thereby realizing the opening or closing of the discharge port.

After the filter pressing assembly 6 completes filter pressing of the precipitate, the filter pressing assembly 6 drives the accommodating frame 3 and the filter pressing plate 4 to be away from each other, then the opening and closing assembly 72 opens the discharge port, and the vibrator 712 drives the accommodating frame 3 to generate high-frequency vibration so as to discharge the precipitate in the filter cavity along the discharge port in a vibrating manner through the high-frequency vibration. Then through setting up the conveyer belt in discharge gate department to make the conveying output of conveyer belt towards the forging furnace, can deposit sodium bicarbonate and convey to the forging furnace fast and calcine.

The implementation principle of a liquid circulation soda ash preparation system of the embodiment of the application is as follows: during the preparation of the sodium carbonate, turbid solution flowing out of the carbonization tower 1 is filtered in a filter chamber along a feed inlet, then the filter assembly 5 filters the solution, filtered mother liquor is pumped out to a mother liquor pool, and the filtered residual sodium bicarbonate precipitate is retained in the filter chamber; then the filter pressing assembly 6 drives the accommodating frame 3 and the filter pressing plate 4 to be close to each other, so that the space of the filter cavity between the accommodating frame 3 and the filter pressing plate 4 is greatly reduced, the accommodating frame 3 and the filter pressing plate 4 extrude and drain the internal sediment, and the residual attached water on the sodium bicarbonate sediment is greatly reduced. After the filter pressing is finished, discharging sodium bicarbonate sediment in the filter cavity through a discharging mechanism, and conveying the sodium bicarbonate sediment into a forging furnace through a conveying belt; at the moment, the attached water on the sodium bicarbonate precipitate is greatly reduced, and in the process of preparing the calcined soda by calcining the sodium bicarbonate, the precipitation amount of sodium chloride is reduced due to the reduction of the attached water, so that the finished product purity of the calcined soda is effectively improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a liquid circulation soda preparation system, includes carbonizer (1), mother liquor pond and forging furnace, its characterized in that: still include mounting bracket (2), be provided with holding frame (3) on mounting bracket (2), the one end of holding frame (3) is the opening setting, just the opening part is provided with filter-pressing board (4), the one end periphery wall of filter-pressing board (4) with the interior perisporium of holding frame (3) slides the laminating, filter-pressing board (4) with enclose into the filter chamber between holding frame (3), the feed inlet that supplies carbonization tower (1) outflow solution to get into the filter chamber is seted up at holding frame (3) top, holding frame (3) with be provided with between filter-pressing board (4):

the filtering component (5) is used for filtering the solution in the filtering cavity and pumping the filtered mother liquor to the mother liquor pool;

the filter pressing assembly (6) is used for driving the accommodating frame (3) and the filter pressing plate (4) to approach or separate from each other;

and the discharging mechanism is used for discharging the precipitate in the filtering cavity out of the filtering cavity.

2. The system for preparing soda ash by liquid circulation as claimed in claim 1, wherein: the utility model discloses a filter assembly, including filter element (5) and suction pump (52), filter element (51) set firmly on filter-pressing plate (4), just the length direction of filter element (51) with the direction of sliding of filter-pressing plate (4) is unanimous, a plurality of drainage holes (511) have been seted up to the periphery side of filter element (51), set up the perforation that supplies filter element (51) to run through on holding frame (3), the periphery side of filter element (51) with the interior perisporium sliding fit of perforation, the intake end of suction pump (52) with the one end that holding frame (3) were worn out to filter element (51) is linked together, the outlet end of suction pump (52) with the intercommunication has flexible drain pipe (53) between the mother liquor pond.

3. The system for preparing soda ash by liquid circulation as claimed in claim 1, wherein: filter-pressing subassembly (6) respectively are provided with a set ofly in the top and the bottom of holding frame (3), filter-pressing subassembly (6) include slide rail (61), slide (62), wedge (63), driver (64) and reset piece (65), slide rail (61) set firmly in on filter-pressing plate (4), slide (62) along the perpendicular to filter-pressing plate (4) slip direction the direction slidable mounting in on slide rail (61), driver (64) set up in be used for ordering about on filter-pressing plate (4) slide (62), wedge (63) set firmly in on the outer wall of holding frame (3), just the inclined plane of wedge (63) is kept away from slide rail (61), slide (62) go up in keep away from wedge (63) one side of slide rail (61) has set firmly briquetting (623), a side of briquetting (623) with the inclined plane of wedge (63) slides and laminates, reset piece (65) are used for keeping away from slide (62) when wedge (63) one side of briquetting (4) order to about filter-pressing plate (3) and normal position return to the holding frame (3).

4. The system for preparing soda ash by liquid circulation as claimed in claim 3, wherein: reset piece (65) for set up slide rail (61) with reset spring (651) between wedge piece (63), reset spring (651)'s one end and holding frame (3) towards a terminal surface fixed connection, the other end of slide rail (61) lateral wall fixed connection.

5. The system for preparing soda ash by liquid circulation as claimed in claim 3, wherein: be located place have set firmly overlay (621) on slide (62) at holding frame (3) top, the bottom of overlay (621) with the top surface sliding fit of holding frame (3), when gliding slide (62) orders about briquetting (623) press wedge (63), overlay (621) slide and cover the feed inlet.

6. The system for preparing soda ash by liquid circulation as claimed in claim 3, wherein: seted up a plurality of filtrate holes (33) on the diapire of holding frame (3), be located set firmly the cover on slide (62) of holding frame (3) bottom the sunshade of filtrate hole (33), the sunshade with the diapire slip laminating of holding frame (3), order about as gliding slide (62) briquetting (623) are pressed during wedge (63), the sunshade slides and keeps away from filtrate hole (33).

7. The system for preparing soda ash by liquid circulation as claimed in claim 6, wherein: the bottom of the accommodating frame (3) is fixedly provided with a water collecting hopper (31), one end of the water collecting hopper (31) is opened towards a plurality of filtrate holes (33), the other end of the water collecting hopper (31) is communicated with a flexible liquid feeding pipe (32), and one end, away from the water collecting hopper (31), of the flexible liquid feeding pipe (32) is communicated with the mother liquor pool.

8. The system for preparing soda ash by liquid circulation as claimed in claim 1, wherein: a discharge port is formed in one side wall of the accommodating frame (3), and the discharge mechanism comprises a vibration assembly (71) and an opening and closing assembly (72) for opening or closing the discharge port;

the vibration component (71) comprises a plurality of supporting springs (711) which are fixedly arranged on the mounting frame (2) and used for elastically supporting the accommodating frame (3) on the mounting frame (2), and a vibrator (712) which is fixedly arranged on the outer wall of the accommodating frame (3).

9. The system for preparing soda ash by liquid circulation as claimed in claim 8, wherein: the opening and closing assembly (72) comprises a sealing plate (721) arranged on the accommodating frame (3) in a sliding mode and a linear power part (722) used for driving the sealing plate (721) to cover the discharging hole in a sliding mode or to be away from the discharging hole in a sliding mode.

Images