CN114082236A - High-salt solid waste integrated washing device - Google Patents

High-salt solid waste integrated washing device Download PDF

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Publication number
CN114082236A
CN114082236A CN202111363431.0A CN202111363431A CN114082236A CN 114082236 A CN114082236 A CN 114082236A CN 202111363431 A CN202111363431 A CN 202111363431A CN 114082236 A CN114082236 A CN 114082236A
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CN
China
Prior art keywords
ceramic filter
slurry
vacuum ceramic
bin
washing
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Granted
Application number
CN202111363431.0A
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Chinese (zh)
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CN114082236B (en
Inventor
谭潇玲
杨本涛
戴波
魏进超
刘克俭
冯哲愚
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Zhongye Changtian International Engineering Co Ltd
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Zhongye Changtian International Engineering Co Ltd
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Publication of CN114082236A publication Critical patent/CN114082236A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/15Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/35Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • B01D33/41Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/46Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/58Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/60Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/80Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00Operations not covered by a single other subclass or by a single other group in this subclass

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention discloses a high-salinity solid waste integrated washing device which comprises a rack, a primary vacuum ceramic filter, a secondary vacuum ceramic filter and a tertiary vacuum ceramic filter, wherein the rack is provided with a water inlet and a water outlet; each stage of vacuum ceramic filter comprises a slurry bin, a pressure chamber, a ceramic filter plate and a rotating shaft, wherein the slurry bin is an open slurry bin with a narrow lower part and a wide upper part, the left side of the slurry bin is a feeding side, the right side of the slurry bin is provided with a blanking notch, and the top end of the side wall of the blanking notch is provided with a scraping device which is abutted against the ceramic filter plate; the left feeding side of the slurry bin of the second-stage vacuum ceramic filter is positioned below the blanking notch on the right side of the slurry bin of the first-stage vacuum ceramic filter, and the left feeding side of the slurry bin of the third-stage vacuum ceramic filter is positioned below the blanking notch on the right side of the slurry bin of the second-stage vacuum ceramic filter. According to the invention, the three vacuum ceramic filters are horizontally connected in series and integrally arranged, so that the configuration of related equipment in the material conveying process is greatly simplified.

Description

High-salt solid waste integrated washing device
Technical Field
The invention relates to water washing separation equipment, in particular to a high-salt solid waste integrated water washing device.
Background
With the continuous promotion of a 'producing city integration' development mode, the steel industry gradually evolves towards a 'wastewater zero discharge, waste gas ultra-low discharge and solid waste non-discharge' coordinated mode. At present, solid waste generated in the steel industry mainly contains iron, and most of the solid waste is subjected to internal circulation treatment in steel plants through sintering, blast furnaces, rotary kilns and other high-temperature furnaces. However, part of high-salt solid wastes (such as sintering three-field ash, sintering four-field ash, and blast furnace cloth bag dust removal ash) especially sintering machine head ash contains more alkali and chlorine metal, and if the high-salt solid wastes are directly returned to high-temperature kilns such as sintering furnaces, rotary kilns and the like, the unfavorable conditions such as equipment corrosion and kiln caking can be caused.
In the process of utilizing solid waste resources, in order to avoid the influence of corresponding elements on the service performance of high-temperature equipment, the elements of the solid waste need to be selectively separated and recovered. The water washing and filtering are one of the feasible schemes at present, the solid waste is mainly washed and filtered for multiple times in sequence, relevant elements such as chlorine, potassium, sodium and the like in sintering machine head ash are washed and dissolved in water, then filtrate is treated to carry out resource recovery on potassium, sodium salt and the like, the water content of the solid material after the filtering treatment is about 15-20%, the solid material can be sintered again, and the process flow is shown in figure 1.
In the application process of the existing treatment process, each procedure corresponds to one or more devices. Including two main body equipment: a water washing device and a filtering device. The washing equipment mainly adopts a washing tank, so that the volume is large; the filtering equipment mainly adopts a plate frame filter, a centrifugal filter and the like, the equipment has low efficiency and large size, and each stage of filtration adopts a plurality of pieces of equipment which are connected in parallel for use; in addition, corresponding materials, water flow conveying systems and other auxiliary equipment are arranged in the single-stage water washing process and the grading transmission process, and the configuration specifications of all stages of equipment are basically consistent in order to ensure the water washing effect. According to the actual use condition of the site, the method has the obvious defects of large occupied area, large equipment consumption, large overall regulation difficulty and the like due to the lack of integrity among all levels of equipment. The iron content of the high-salt solid waste in the steel industry is high, the high-salt solid waste is relatively large, and the chlorine salt can not be fully dissolved by conventional washing.
Disclosure of Invention
In order to solve the technical problems, the invention provides a washing integrated treatment method and equipment for high-salt solid waste, which are used for treating a washing process for sintering machine head ash, can greatly reduce the occupied area in the washing process of the sintering machine head ash, reduce the consumption and application cost of equipment and simplify the operation flow.
The technical scheme provided by the invention is as follows:
a high-salt solid waste integrated water washing device,
comprises a frame, a first-stage vacuum ceramic filter, a second-stage vacuum ceramic filter and a third-stage vacuum ceramic filter;
each stage of vacuum ceramic filter comprises a slurry cabin, a pressure chamber, a ceramic filter plate and a rotating shaft, wherein the slurry cabin is an open slurry cabin with a narrow lower part and a wide upper part, the slurry bin is arranged on the frame, the pressure chamber is arranged on the frame through the rotating shaft, a filter disc driving motor is arranged on the rotating shaft, the ceramic filter plate is arranged on the circumferential surface of the pressure chamber, the ceramic filter plate is provided with an inner cavity, the surface of the ceramic filter plate is provided with filter holes communicated with the inner cavity, the inner cavity of the ceramic filter plate is communicated with the pressure chamber, the pressure chamber is communicated with a vacuum pumping device, the left side of the slurry bin is a feeding side, the right side of the slurry bin is provided with a blanking notch, the top end of the side wall of the blanking notch is provided with a scraping device which is abutted against the ceramic filter plate, and when the ceramic filter plate rotates, the lower part of the ceramic filter plate passes through the slurry of the slurry bin;
the feeding side on the left side of the slurry cabin of the secondary vacuum ceramic filter is positioned below the blanking notch on the right side of the slurry cabin of the primary vacuum ceramic filter, and the filter material scraped by the upper scraper of the primary vacuum ceramic filter on the ceramic filter plate can fall into the slurry cabin of the secondary vacuum ceramic filter;
the feeding side on the left side of the slurry cabin of the third-stage vacuum ceramic filter is positioned below the blanking notch on the right side of the slurry cabin of the second-stage vacuum ceramic filter, and the filter material scraped by the upper scraper of the second-stage vacuum ceramic filter on the ceramic filter plate can fall into the slurry cabin of the third-stage vacuum ceramic filter.
Wherein, every grade of vacuum ceramic filter's bottom is equipped with prevents the deposit stirring rake, prevent the deposit stirring rake including preventing the deposit stirring rake pivot and encircleing prevent that the epaxial blade of deposit stirring rake is constituteed, prevent deposit stirring rake pivot one end and install on the rear side inner wall in thick liquid storehouse, prevent that the other end of deposit stirring rake pivot passes the preceding lateral wall in thick liquid storehouse and with prevent the deposit stirring rake driver and be connected, prevent the deposit stirring rake pivot with the junction of preceding lateral wall is equipped with the sealing member.
The inner cavity of the ceramic filter plate of the three-stage vacuum ceramic filter is connected with a filtrate pipeline, the filtrate pipeline is connected with a filtrate distributor, the filtrate distributor of the three-stage vacuum ceramic filter is communicated with the slurry cabin of the second-stage vacuum ceramic filter through a filtrate recovery pipe, and filtrate in the inner cavity of the ceramic filter plate in the three-stage vacuum ceramic filter is recovered to the slurry cabin of the second-stage vacuum ceramic filter.
The inner cavity of the ceramic filter plate of the second-stage vacuum ceramic filter is connected with a filtrate pipeline, the filtrate pipeline is connected with a filtrate distributor, the filtrate distributor of the second-stage vacuum ceramic filter is communicated with the slurry cabin of the first-stage vacuum ceramic filter through a filtrate recovery pipe, and filtrate in the inner cavity of the ceramic filter plate in the second-stage vacuum ceramic filter is recovered to the slurry cabin of the first-stage vacuum ceramic filter.
Wherein, the inner cavity of the ceramic filter plate of the first-stage vacuum ceramic filter is connected with a filtrate pipeline.
The bottom of the slurry cabin of each stage of vacuum ceramic filter is provided with a liquid outlet, and a valve is arranged on the liquid outlet.
Wherein, the side walls of the slurry bins of the two vacuum ceramic filters and the three-stage vacuum ceramic filter are provided with ultrasonic devices below the liquid level of the feeding part.
Wherein, the side walls of the slurry bins of the two vacuum ceramic filters and the three-stage vacuum ceramic filter are provided with small-flow liquid high-speed nozzles below the liquid level of the feeding part.
The high-salt solid waste integrated washing device further comprises a washing bin, a feeding port is formed in the top end of the washing bin, and the lower end of the right side of the washing bin is communicated with a slurry bin of the primary vacuum ceramic filter;
the bottom in washing storehouse is equipped with washing storehouse stirring rake, washing storehouse stirring rake includes washing storehouse stirring rake pivot and encircles the stirring piece in washing storehouse stirring rake pivot periphery is constituteed, the vertical pass in washing storehouse stirring rake pivot with the bottom in washing storehouse, the washing storehouse stirring rake pivot is passed the one end in washing storehouse is connected with washing storehouse stirring rake driver, the bottom in washing storehouse still is equipped with row cinder notch, be equipped with the valve on the cinder notch.
Wherein, the washing bin and the three slurry bins can be integrally formed.
Wherein, the upper portion in washing storehouse is provided with screening plant, screening plant is located the upper portion in washing storehouse stirring rake.
Preferably, the screening device is a roller type screening device, and comprises a plurality of screening rollers and roller drivers, wherein the screening rollers are arranged from high to low, the screening roller at the high position is positioned below the feeding port, and a large hopper bin is arranged at one side of the screening roller at the low position.
The side wall of the washing bin is provided with an exhaust port and a liquid adding port, and the exhaust port is further provided with a spraying nozzle.
The rotating shaft of the stirring paddle of the washing bin is close to the bottom of the washing bin, and a scraper is arranged at the bottom of the washing bin and is abutted to the surface of the bottom of the washing bin.
Compared with the prior art, the high-salt solid waste integrated washing device provided by the invention is used for washing and separating materials such as sintering machine head ash and the like, and has the following advantages:
(1) the three vacuum ceramic filters are horizontally connected in series and integrally arranged, so that the configuration of related equipment in the material conveying process is greatly simplified;
(2) the device has the advantages of large production capacity, good filtering effect, small occupied area and the like, and is easy to realize automatic control.
Drawings
FIG. 1 is a flow diagram of a conventional water washing process of the prior art;
FIG. 2 is a schematic side view of the high-salinity solid-waste integrated water washing device of the present invention;
FIG. 3 is a schematic horizontal sectional view of the high-salinity solid-waste integrated water washing device of the present invention;
FIG. 4 is a schematic axial sectional view of a vacuum ceramic filter;
FIG. 5 is a process flow diagram for water washing separation of materials using the present invention;
the device comprises a material inlet 1, a water washing bin 2, a screening device 3, a large hopper bin 4, an exhaust port 5, a spray nozzle 6, a liquid adding opening 7, blades 8, a water washing bin stirring paddle 9, a scraping plate 10, a slag discharging opening 11, a first-stage vacuum ceramic filter 12, a second-stage vacuum ceramic filter 13, a third-stage vacuum ceramic filter 14, a rack 15, a support seat 16, a filter disc driving motor 17, a scraping blade 18, an anti-deposition stirring paddle driver 19, a liquid discharging opening 20, a slurry bin 21, a filtrate distributor 22, a rotating shaft 23, a 24 bearing, a filtrate pipeline 25, a filtrate recovery pipe 26, a ceramic filter plate 27 and an anti-deposition stirring paddle 28.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 2 to 4, the high-salt solid waste integrated water washing device comprises a frame 15, a primary vacuum ceramic filter 12, a secondary vacuum ceramic filter 13 and a tertiary vacuum ceramic filter 14;
each stage of vacuum ceramic filter comprises a slurry bin 21, a pressure chamber, a ceramic filter plate 27 and a rotating shaft 23, wherein the slurry bin 21 is an open slurry bin 21 which is narrow at the bottom and wide at the top, the slurry bin 21 is arranged on the frame 15, the pressure chamber is arranged on the frame 15 through the rotating shaft 23, a filter disc driving motor 17 is arranged on the rotating shaft 23, the ceramic filter plate 27 is arranged on the circumferential surface of the pressure chamber, the ceramic filter plate 27 is provided with an inner cavity, the surface of the ceramic filter plate 27 is provided with filter holes communicated with the inner cavity, the inner cavity of the ceramic filter plate 27 is communicated with the pressure chamber, the pressure chamber is communicated with a vacuum air extractor, the left side of the slurry bin 21 is a feeding side, the right side of the slurry bin 21 is provided with a blanking notch, the top end of the side wall of the blanking notch is provided with a scraper 18 device which is abutted against the ceramic filter plate 27, when the ceramic filter plate 27 rotates, the lower part of the slurry passes through the slurry cabin 21;
the feeding side at the left side of the slurry bin 21 of the secondary vacuum ceramic filter 13 is positioned below the blanking notch at the right side of the slurry bin 21 of the primary vacuum ceramic filter 12, and the filter material scraped by the upper scraper 18 of the primary vacuum ceramic filter 12 on the ceramic filter plate 27 can fall into the slurry bin 21 of the secondary vacuum ceramic filter 13;
the feeding side at the left side of the slurry bin 21 of the three-stage vacuum ceramic filter 14 is positioned below the blanking notch at the right side of the slurry bin 21 of the two-stage vacuum ceramic filter 13, and the filter material scraped by the upper scraper 18 of the two-stage vacuum ceramic filter 13 on the ceramic filter plate 27 can fall into the slurry bin 21 of the three-stage vacuum ceramic filter 14.
The high-salinity solid waste integrated water washing device consists of three vacuum ceramic filters connected in parallel, materials are filtered by a primary vacuum ceramic filter 12, a ceramic filter plate 27 rotates to pass through a slurry bin 21, adsorbed filter materials fall into the slurry bin 21 of a secondary vacuum ceramic filter 13 from a blanking tank under the action of a scraping blade 18 device to finish primary water washing and filtering, then fall into the slurry bin 21 of a tertiary vacuum ceramic filter 14 from the blanking tank under the action of the scraping blade 18 of the secondary vacuum ceramic filter 13 in the same way to finish secondary water washing and filtering, then finish tertiary water washing and filtering in the tertiary vacuum ceramic filter 14, and a storage bin can be placed below a blanking slot opening of the tertiary vacuum ceramic filter 14 for collection or transportation.
Further, every grade of vacuum ceramic filter's bottom is equipped with prevents deposiing stirring rake 28, prevent deposiing stirring rake 28 including preventing deposiing stirring rake pivot and encircleing prevent that deposiing stirring rake is changeed epaxial stirring piece and is constituteed, prevent that 28 pivot 23 one end of deposiing stirring rake is installed on the rear side inner wall of thick liquid storehouse 21, prevent that the other end of 28 pivots 23 of deposiing stirring rake passes thick liquid storehouse 21 preceding lateral wall and with be connected at 19, prevent 28 pivots 23 of deposiing stirring rake with the junction of preceding lateral wall is equipped with the sealing member.
The anti-deposition stirring paddle 28 is driven by the anti-deposition stirring paddle driver 19 to rotate, and is used for driving the solids deposited at the bottom of the slurry bin 21 to flow, and simultaneously stirring to make the slurry flow can accelerate the dissolution of the chlorine salt in the material to be washed.
Furthermore, a support frame is arranged on the frame 15, a bearing 24 is arranged on the support seat 16, and the rotating shaft 23 is mounted on the support frame through the bearing 24.
Further, the inner cavity of the ceramic filter plate 27 of the third-stage vacuum ceramic filter 14 is connected with a filtrate pipeline 25, the filtrate pipeline 25 is connected with a filtrate distributor 22, the filtrate distributor 22 of the third-stage vacuum ceramic filter 14 is communicated with the slurry cabin 21 of the second-stage vacuum ceramic filter 13 through a filtrate recovery pipe 26, and filtrate in the inner cavity of the ceramic filter plate 27 of the third-stage vacuum ceramic filter 14 is recovered to the slurry cabin 21 of the second-stage vacuum ceramic filter 13.
Furthermore, the inner cavity of the ceramic filter plate 27 of the secondary vacuum ceramic filter 13 is connected with a filtrate pipeline 25, the filtrate pipeline 25 is connected with a filtrate distributor 22, the filtrate distributor 22 of the secondary vacuum ceramic filter 13 is communicated with the slurry cabin 21 of the primary vacuum ceramic filter 12 through a filtrate recovery pipe 26, and the filtrate in the inner cavity of the ceramic filter plate 27 of the secondary vacuum ceramic filter 13 is recovered to the slurry cabin 21 of the primary vacuum ceramic filter 12.
Furthermore, the inner cavity of the ceramic filter plate 27 of the first-stage vacuum ceramic filter 12 is connected with a filtrate pipeline 25 for leading out filtrate.
The filtrate recovered by the primary vacuum ceramic filter 12 is subjected to subsequent treatment according to the situation, the filtrate recovered by the secondary primary vacuum ceramic filter 12 is returned to the slurry cabin 21 of the primary vacuum ceramic filter 12, and the filtrate recovered by the tertiary vacuum ceramic filter 14 is returned to the slurry cabin 21 of the secondary vacuum ceramic filter 13; the material filtered by the first-stage vacuum ceramic filter 12 directly enters the slurry cabin 21 of the second-stage vacuum ceramic filter 13, and the material filtered by the second-stage vacuum ceramic filter 13 directly enters the slurry cabin 21 of the third-stage vacuum ceramic filter 14, so that the balance and circulation of solid and liquid are realized.
Further, a liquid discharge port 20 is arranged at the bottom of the slurry bin 21 of each stage of vacuum ceramic filter, a valve is arranged on the liquid discharge port 20, and slurry in the slurry bin 21 is discharged in required time.
The ultrasonic device and/or the small-flow liquid high-speed nozzle are/is arranged on the side wall of the feeding bin of the slurry bin 21 of the two-stage vacuum ceramic filter and the three-stage vacuum ceramic filter 14 and below the liquid level of the feeding position, the small-flow liquid high-speed nozzle is communicated with the water pipe, and the sprayed water flow can better break away the material, so that the material and the water in the slurry bin 21 can be better dispersed, and chlorine salt in the material can be fully and quickly dissolved.
Further, the high-salt solid waste integrated washing device also comprises a washing bin 2, a feeding port 1 is formed in the top end of the washing bin 2, and the lower end of the right side of the washing bin 2 is communicated with a slurry bin 21 of the primary vacuum ceramic filter 12; preferably, the washing bin 2 can also be integrally formed with the slurry bin 21 of the primary vacuum ceramic filter 12;
the bottom in washing storehouse 2 is equipped with washing storehouse stirring rake 9, washing storehouse stirring rake 9 includes washing storehouse stirring rake pivot and encircles the blade 8 in the periphery of washing storehouse stirring rake pivot is constituteed, 9 vertical passes in washing storehouse stirring rake pivot 23 with the bottom in washing storehouse 2, 9 pivot 23 in washing storehouse are passed the one end in washing storehouse is connected with washing storehouse stirring rake 9 driver, the bottom in washing storehouse 2 still is equipped with row cinder notch 11, be equipped with the valve on row cinder notch 11.
Further, the washing bin 2 and the three slurry bins 21 are integrally formed.
Further, the upper part of the washing bin 2 is provided with a screening device 3, and the screening device 3 is positioned at the upper part of the stirring paddle 9 of the washing bin and is used for removing materials with large particle size in dry ash.
Preferably, the screening device 3 may be a vibrating screen or a roller screen.
The roller type screening device comprises a plurality of screening rollers and roller drivers, the screening rollers are arranged from high to low, gaps of the screening rollers can be adjusted according to needs, so that materials with different particle sizes can be removed, the screening roller at the high position is located below the feeding port 1, a large hopper bin 4 is arranged at one side of the screening roller at the low position, and the large hopper bin 4 collects the removed materials with large particle sizes.
Preferably, the screening rollers are arranged at an inclination, preferably 2-10 °
Furthermore, the lateral wall of the washing bin 2 is provided with an exhaust port 5 and a liquid adding port 7, and the exhaust port 5 is also provided with a spraying nozzle 6.
Water washing storehouse 2 is as the preprocessing device of pending material such as dry ash, carries out the preliminary treatment to dry ash, and water washing storehouse 2 is totally enclosed structure, has seted up gas vent 5, and the effect can produce gas such as partial ammonia nitrogen for discharging dry ash at water washing in-process, for not influencing the environment, is provided with spray nozzle 6 on gas vent 5's pipeline, carries out diluted acid and water to the gas of discharging and sprays and remove ammonia.
Further, the rotating shaft 23 of the stirring paddle 9 of the washing bin is close to the bottom of the washing bin 2, the scraping plate 10 is arranged at the bottom of the washing bin 2, the scraping plate 10 is abutted to the surface of the bottom of the washing bin 2, so that materials are not deposited at the bottom of the washing bin 2, and the slag discharge port 11 at the bottom of the washing bin 2 is used for discharging indissolvable iron particles generated in the washing process.
With reference to fig. 1-5, the working principle of the invention is that dry ash (sintering machine head ash) enters a washing bin 2 at a feeding port 1 of the washing bin 2 for pretreatment, and after screening, the dry ash is quickly washed under the action of a stirring paddle 9 of the washing bin, the upper part of the washing bin 2 is a material to be washed, the lower end of the washing bin is washed solid slurry, and the solid slurry enters a slurry bin 21 of a primary vacuum ceramic filter 12 under the action of the stirring paddle 9 of the washing bin. The scraper 10 at the bottom of the stirring paddle 9 of the washing bin lifts the material deposited at the bottom and enters the stirring area of the stirring paddle 9 of the washing bin again, so that the chlorine salt can be fully dissolved into water by circulating water washing, and finally, indissolvable iron powder particles are left to be discharged through the slag discharge port 11.
In the slurry storehouse 21 of the first-stage vacuum ceramic filter 12, the rotating ceramic filter 27 forms negative pressure under the action of the vacuum pumping device, the inner cavity in the ceramic filter 27 also forms negative pressure, the hollow area in the porous filter forms large negative pressure, when the ceramic filter 27 with the filter holes is rotated to submerge into slurry, the negative pressure can adsorb the slurry on the filter, the liquid enters the inner cavity through the filter holes of the ceramic filter 27 and then enters the pressure chamber, then flows out through the filtrate distributor 22 through the pipeline, the solid is attached to the ceramic filter 27, after reaching a certain thickness, the slurry leaves, then the liquid in the material is further pumped to form filter cake through continuous negative pressure adsorption, the water content of the filter cake reaches about 15-20%, when the ceramic filter 27 is continuously rotated to be in contact with the scraper 18, the back blowing is started, the adhesive force of the filter cake on the ceramic filter 27 is reduced, thereby make the material peel off from ceramic filter 27 smoothly, the material gets into the thick liquids storehouse of second grade vacuum ceramic filter 13 from the blanking notch, be equipped with ultrasonic device and the high-speed spout of low discharge liquid in the thick liquids storehouse of second grade vacuum ceramic filter 13, under the effect of the high-speed spout of ultrasonic device and low discharge liquid, the material is broken up, carry out intensive mixing with the solution in the thick liquids storehouse of second grade vacuum ceramic filter 13, make the chlorine salt in the material go deep into the solution fast, carry out the second grade washing, adsorb and scrape the material through same mode again, get into the thick liquids storehouse 21 of tertiary vacuum ceramic filter 14, continue to carry out washing and separation for the third time, thereby accomplish a preliminary treatment, the process of washing separation for the third time.
According to the invention, the three vacuum ceramic filters are horizontally connected in series and integrally arranged, so that the configuration of related equipment in the material conveying process is greatly simplified; the device has the advantages of large production capacity, good filtering effect, small occupied area and the like, and is easy to realize automatic control.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (13)

1. The utility model provides a solid useless integration washing device of high salt which characterized in that:
comprises a frame (15), a primary vacuum ceramic filter (12), a secondary vacuum ceramic filter (13) and a tertiary vacuum ceramic filter (14);
each stage of vacuum ceramic filter comprises a slurry cabin (21), a pressure chamber, a ceramic filter plate (27) and a rotating shaft (23), wherein the slurry cabin (21) is an open slurry cabin (21) which is narrow at the bottom and wide at the top, the slurry cabin (21) is installed on a rack (15), the pressure chamber is installed on the rack (15) through the rotating shaft (23), a filter disc driving motor (17) is installed on the rotating shaft (23), the ceramic filter plate (27) is arranged on the circumferential surface of the pressure chamber, the ceramic filter plate (27) is provided with an inner chamber, the surface of the ceramic filter plate (27) is provided with filter holes communicated with the inner chamber, the inner chamber of the ceramic filter plate (27) is communicated with the pressure chamber, the pressure chamber is communicated with a vacuum air extractor, the left side of the slurry cabin (21) is a feeding side, the right side of the slurry cabin (21) is provided with a blanking notch, the top end of the side wall of the blanking notch is provided with a scraping blade (18) device which is abutted against the ceramic filter plate (27), and when the ceramic filter plate (27) rotates, the lower part of the ceramic filter plate passes through the slurry in the slurry bin (21);
the feeding side at the left side of the slurry bin (21) of the secondary vacuum ceramic filter (13) is positioned below the blanking notch at the right side of the slurry bin (21) of the primary vacuum ceramic filter (12), and filter materials scraped by the scraper (18) on the ceramic filter plate (27) of the primary vacuum ceramic filter (12) can fall into the slurry bin (21) of the secondary vacuum ceramic filter (13);
the feeding side at the left side of the slurry bin (21) of the three-stage vacuum ceramic filter (14) is positioned below the blanking notch at the right side of the slurry bin (21) of the second-stage vacuum ceramic filter (13), and the filter material scraped by the scraping blade (18) on the ceramic filter plate (27) of the second-stage vacuum ceramic filter (13) can fall into the slurry bin (21) of the three-stage vacuum ceramic filter (14).
2. The high-salt solid waste integrated water washing device as claimed in claim 1, wherein:
every level vacuum ceramic filter's bottom is equipped with prevents deposit stirring rake (28), prevent deposit stirring rake (28) including preventing deposit stirring rake pivot and encircleing prevent that deposit stirring rake is changeed epaxial stirring piece and is constituteed, prevent deposit stirring rake (28) pivot (23) one end and install on the rear side inner wall in thick liquid storehouse (21), the other end of preventing deposit stirring rake (28) pivot (23) passes the preceding lateral wall in thick liquid storehouse (21) and with prevent deposit stirring rake driver (19) and be connected, prevent deposit stirring rake (28) pivot (23) with the junction of preceding lateral wall is equipped with the sealing member.
3. The high-salinity solid-waste integrated water washing device as claimed in claim 2, characterized in that:
the inner cavity of the ceramic filter plate (27) of the three-stage vacuum ceramic filter (14) is connected with a filtrate pipeline (25), the filtrate pipeline (25) is connected with a filtrate distributor (22), the filtrate distributor (22) of the three-stage vacuum ceramic filter (14) is communicated with the slurry bin (21) of the second-stage vacuum ceramic filter (13) through a filtrate recovery pipe (26), and filtrate in the inner cavity of the ceramic filter plate (27) in the three-stage vacuum ceramic filter (14) is recovered into the slurry bin (21) of the second-stage vacuum ceramic filter (13).
4. The high-salt solid waste integrated water washing device as claimed in claim 3, wherein:
the inner cavity of the ceramic filter plate (27) of the second-stage vacuum ceramic filter (13) is connected with a filtrate pipeline (25), the filtrate pipeline (25) is connected with a filtrate distributor (22), the filtrate distributor (22) of the second-stage vacuum ceramic filter (13) is communicated with the slurry bin (21) of the first-stage vacuum ceramic filter (12) through a filtrate recovery pipe (26), and filtrate in the inner cavity of the ceramic filter plate (27) in the second-stage vacuum ceramic filter (13) is recovered into the slurry bin (21) of the first-stage vacuum ceramic filter (12).
5. The high-salinity solid-waste integrated water washing device as claimed in claim 4, characterized in that:
the inner cavity of the ceramic filter plate (27) of the first-stage vacuum ceramic filter (12) is connected with a filtrate pipeline (25).
6. The high-salt solid waste integrated water washing device as claimed in claim 5, wherein:
the bottom of the slurry cabin (21) of each stage of vacuum ceramic filter is provided with a liquid outlet (20), and the liquid outlet (20) is provided with a valve.
7. The high-salinity solid-waste integrated water washing device as claimed in claim 6, characterized in that:
and an ultrasonic device and/or a small-flow liquid high-speed nozzle are/is arranged on the side wall of the slurry cabin (21) of the two-stage vacuum ceramic filter and the three-stage vacuum ceramic filter (14) and below the liquid level of the feeding part.
8. The high-salinity solid-waste integrated water washing device as claimed in any one of claims 1 to 7, characterized in that:
the device is characterized by also comprising a washing bin (2), wherein the top end of the washing bin (2) is provided with a feeding port (1), and the lower end of the right side of the washing bin (2) is communicated with a slurry bin (21) of the primary vacuum ceramic filter (12);
the bottom in washing storehouse (2) is equipped with washing storehouse stirring rake (9), washing storehouse stirring rake (9) include washing storehouse stirring rake pivot and encircle blade (8) in the periphery of washing storehouse stirring rake pivot are constituteed, washing storehouse stirring rake (9) pivot (23) vertical pass with the bottom in washing storehouse (2), washing storehouse stirring rake (9) pivot (23) are passed the one end in washing storehouse is connected with washing storehouse stirring rake (9) driver, the bottom in washing storehouse (2) still is equipped with row cinder notch (11), be equipped with the valve on row cinder notch (11).
9. The high-salinity solid-waste integrated water washing device as claimed in claim 8, characterized in that:
the washing bin (2) and the three slurry bins (21) are integrally formed.
10. The high-salinity solid-waste integrated water washing device as claimed in claim 9, characterized in that:
the upper portion in washing storehouse (2) is provided with screening plant (3), screening plant (3) are located the upper portion in washing storehouse stirring rake (9).
11. The high-salinity solid-waste integrated water washing device as claimed in claim 10, characterized in that:
screening plant (3) are roller-type screening ware, including a plurality of screening rollers and roller driver, a plurality of screening rollers are arranged from high to low, and the screening roller of eminence is located the below of pan feeding mouth (1), and one side department of the screening roller of low department is equipped with bold hopper storehouse (4).
12. The high-salt solid-waste integrated water washing device as claimed in claim 11, wherein:
be equipped with gas vent (5) and filling opening (7) on the lateral wall in washing storehouse (2), still be equipped with on gas vent (5) and spray nozzle (6).
13. The high-salt solid-waste integrated water washing device as claimed in claim 12, wherein:
washing storehouse stirring rake (9) pivot (23) are close washing storehouse (2) bottom is equipped with scraper blade (10), scraper blade (10) with washing storehouse (2) bottom surface offsets.
CN202111363431.0A 2021-11-17 2021-11-17 High-salt solid waste integrated washing device Active CN114082236B (en)

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