CN114028864B

CN114028864B - High-salt solid waste integrated washing equipment and control method thereof

Info

Publication number: CN114028864B
Application number: CN202111364996.0A
Authority: CN
Inventors: 戴波; 杨本涛; 谭潇玲; 魏进超; 刘克俭; 冯哲愚
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2023-06-23
Anticipated expiration: 2041-11-17
Also published as: CN114028864A

Abstract

The invention provides high-salt solid waste integrated washing equipment and a control method thereof, wherein the washing equipment comprises three-stage filters which are vertically arranged, the position of a washing tank in the two-stage filters and the steering direction of a ceramic plate are just opposite to those of the first-stage filters and the three-stage filters, and materials after all-stage treatment can be directly conveyed under the action of gravity, so that the configuration of related equipment in the material conveying process is greatly simplified; the invention combines the washing tank and the vacuum ceramic filter to form an integrated washing and filtering device, and the washed material is directly conveyed into the tank of the filter by the extrusion action of the stirring paddle, so that the continuity of a washing and filtering working system is further enhanced; the control method adopts a double-factor adjustment mode, so that the influence of another parameter on the operation effect of the equipment in the single-factor adjustment process can be avoided, the control process is more comprehensive, and the operation efficiency of the equipment can be further improved.

Description

High-salt solid waste integrated washing equipment and control method thereof

Technical Field

The invention relates to iron ore sintering treatment equipment, in particular to high-salt solid waste integrated washing equipment and a control method thereof.

Background

The electric dust-removing ash of the sintering machine head is dust trapped by an electric dust remover of flue gas of the sintering machine head in the process of sintering iron ore, and is a common high-salt solid waste in the steel industry. The element composition of the sintering machine head ash contains impurity elements such as lead, potassium, sodium and the like which are harmful to blast furnace ironmaking and also contains a large amount of elements such as iron, carbon, silicon, calcium, aluminum and the like which are useful for iron and steel smelting. In order to avoid the influence of corresponding elements on the service performance of the blast furnace or the heavy metal pollution and the resource waste, the internal elements of the sintering machine head ash need to be selectively separated and recycled. Three-stage countercurrent washing is one of the mature schemes at present, and mainly comprises the steps of washing and filtering high-salt solid waste for three times in sequence, thoroughly dissolving chlorine, potassium, sodium, thallium and other related elements in water, treating heavy metal elements in generated sewage, recycling potassium, sodium and the like, and re-sintering the solid waste with the water content of less than 20% after the treatment is completed, wherein the technological process is shown in figure 1.

In the application process of the high-salt solid waste treatment process, the existing equipment is mainly configured in a one-to-one grading manner according to the process requirements, and is regulated and controlled in a grading manner. The device comprises two main body devices, namely 3 water washing devices and 3 filtering devices, wherein the water washing devices mainly adopt water washing tanks, the filtering devices mainly adopt plate-frame filters, centrifugal filters and the like, and the device is provided with corresponding materials, water flow conveying systems and other auxiliary devices in the single-stage water washing process and the grading transmission process, and the configuration specifications of the devices at all levels are basically consistent in order to ensure the water washing effect. According to the actual use condition in the field, the method has the defects of obvious occupied area, large equipment consumption, large integral regulation difficulty and the like due to the lack of integrity among all stages of equipment.

Meanwhile, the existing equipment control method only controls a single vacuum ceramic filter, the control object is single, the control is inaccurate, the energy consumption is large, and meanwhile, the existing control scheme of the vacuum ceramic filter is mainly based on a single factor adjustment method, so that the operation efficiency of equipment is affected.

Disclosure of Invention

In order to solve the technical problems, the invention provides the high-salt solid waste integrated washing equipment, which can greatly reduce the occupied area in the high-salt solid waste washing process, reduce the consumption and the application cost of the equipment and simplify the operation flow.

Further, it is necessary to provide a control method of the above-mentioned high-salt solid waste integrated washing apparatus.

The technical scheme provided by the invention is as follows:

a high-salt solid waste integrated washing device,

the filter comprises a shell, wherein a primary filter, a secondary filter and a tertiary filter are arranged in the shell from top to bottom, a feed inlet is arranged at the top of the shell, and a discharge outlet is arranged at the bottom of the shell;

the primary filter comprises a primary washing tank, a primary stirring paddle and a primary vacuum ceramic filter;

the primary washing tank is divided into a primary ceramic filter plate trough area and a primary stirring paddle area, a primary vacuum ceramic filter is installed in the primary ceramic filter plate trough area, a primary stirring paddle is installed in the primary stirring paddle area, a feeding port is aligned above the primary stirring paddle, the primary vacuum ceramic filter comprises a ceramic filter plate hollow rotating shaft, and a scraping port matched with the ceramic filter plate is arranged on the primary washing tank;

A secondary filter is arranged below the primary filter, and comprises a secondary washing tank, a secondary stirring paddle and a secondary vacuum ceramic filter;

the secondary washing tank is divided into a secondary ceramic filter plate material tank area and a secondary stirring paddle area, a secondary vacuum ceramic filter is arranged in the secondary ceramic filter plate material tank area, a secondary stirring paddle is arranged in the secondary stirring paddle area, the upper part of the secondary stirring paddle is opposite to a scraping port of the primary washing tank, the secondary vacuum ceramic filter comprises a ceramic filter plate hollow rotating shaft, and the secondary washing tank is provided with a scraping port matched with the ceramic filter plate;

a three-stage filter is arranged below the two-stage filter, and comprises a three-stage washing tank, a three-stage stirring paddle and a three-stage vacuum ceramic filter;

the three-stage washing tank is divided into a three-stage ceramic filter plate material tank area and a three-stage stirring paddle area, a three-stage vacuum ceramic filter is installed in the three-stage ceramic filter plate material tank area, a three-stage stirring paddle is installed in the three-stage stirring paddle area, the upper part of the three-stage stirring paddle is right opposite to a scraping opening of the two-stage washing tank, the three-stage vacuum ceramic filter comprises a ceramic filter plate hollow rotating shaft, and the three-stage washing tank is provided with a scraping opening matched with the ceramic filter plate;

The scraping opening of the three-stage washing tank is vertically opposite to the discharging opening.

Wherein, the primary washing tank is provided with a primary water inlet close to the primary stirring paddle, and a primary water outlet close to the primary vacuum ceramic filter; the secondary water washing tank is provided with a secondary water inlet close to the secondary stirring paddle, and the secondary water washing tank is provided with a secondary water outlet close to the secondary vacuum ceramic filter; the three-stage washing tank is provided with a three-stage water inlet close to the three-stage stirring paddle, and the three-stage washing tank is provided with a three-stage water outlet close to the three-stage vacuum ceramic filter; the three-stage water inlet is connected with a water inlet pipeline, the three-stage water outlet is connected with the two-stage water inlet through a pipeline, the three-stage water pump is arranged between the three-stage water outlet and the two-stage water inlet, the two-stage water outlet is connected with the two-stage water inlet through a pipeline, the one-stage water outlet is connected with a water outlet pipeline and communicated with a sewage storage tank, the water outlet pipeline is provided with the one-stage water pump, and the one-stage water inlet is communicated with a water supplementing pipeline in parallel.

The ceramic filter plate is an annular ceramic filter plate, filter holes are formed in plates on two sides of the inner cavity of the ceramic filter plate, the ceramic filter plate is sleeved on the periphery of the hollow rotating shaft, the inner cavity of the ceramic filter plate is communicated with the inner cavity of the hollow rotating shaft, the primary filter assembly, the secondary filter assembly and the tertiary filter assembly further respectively comprise a vacuum pump, the inner cavity of the hollow rotating shaft is communicated with an extraction opening of the vacuum pump, the hollow rotating shaft is respectively installed in the primary washing tank, the secondary washing tank and the tertiary washing tank through bearings, and filter plate rotation drivers are respectively installed on the hollow rotating shaft.

The hollow rotating shaft is provided with a plurality of ceramic filter plates, each ceramic filter plate corresponding to each primary washing tank is provided with a scraping opening, each ceramic filter plate corresponding to each secondary washing tank is provided with a scraping opening, and each ceramic filter plate corresponding to each tertiary washing tank is provided with a scraping opening.

The ceramic filter plates in the secondary washing tanks and the primary washing tanks are opposite in rotation direction, and the scraping openings of the secondary washing tanks and stirring paddles in the primary washing tanks and the tertiary washing tanks are on the same side.

Wherein, the first-stage stirring paddle, the second-stage stirring paddle and the third-stage stirring paddle are respectively provided with a stirring paddle driver.

Wherein the system also comprises a control system, the control system comprises a central controller,

the primary water pump, the secondary water pump and the tertiary water pump are respectively provided with valve adjusting controllers, the stirring paddle drivers are respectively provided with driver regulators, and the filter plate rotating drivers are respectively provided with rotating regulators;

All the slurry concentration detector, the slurry height detector, the flow detector, the valve adjusting controller, the rotation adjuster and the driver adjuster are respectively and electrically connected with the central controller, and the vacuum pump controller is also electrically connected with the central controller.

The control method of the high-salt solid waste integrated washing equipment comprises the following steps:

1) The water discharged from the secondary water outlet of the secondary water washing tank and the water entering from the supplementing waterway enter the primary water washing tank through the primary water inlet, the material enters the primary filter from the material inlet, the water and the material are fully mixed for primary water washing through the stirring of the primary stirring paddle, the material falls into the secondary water washing tank from the scraping port through the primary filtering component separation, and the sewage is discharged from the primary water outlet;

2) The water discharged from the third-stage water outlet of the third-stage water washing tank enters the second-stage water washing tank through the second-stage water inlet, the materials falling into the second-stage water washing tank from the scraping port of the first-stage filtering component are stirred by the second-stage stirring paddle, the water and the materials are fully mixed for secondary water washing, the materials are separated by the second-stage filtering component, and the materials fall into the third-stage water washing tank from the scraping port;

3) The water enters the three-stage washing tank through the three-stage water inlet, the materials falling into the three-stage washing tank from the scraping port of the two-stage filtering component are stirred by the three-stage stirring paddle, the water and the materials are fully mixed for three times for washing, and the materials fall into the discharging port from the scraping port through the three-stage filtering component for separation, so that washing and separation are completed.

The water inflow of the three-stage water inlet is a, the water inflow of the complementary waterway of the primary water inlet is b, the feed amount c of the feed inlet is a, the water discharge amounts of the three-stage water outlet, the two-stage water outlet and the primary water outlet are controlled to be a, and the discharge amount of the discharge outlet is controlled to be b+c. The control method for the high-salt solid waste integrated washing equipment comprises the following steps of:

1) Inputting initial operation parameters into a central controller and starting operation, and presetting a control parameter slurry concentration standard value A1 and a slurry height standard value B1;

2) Monitoring the concentration and the height of the slurry in each stage of filter in the operation process, and if the slurry is normal, stably operating; if the slurry concentration and the slurry height in each stage of filter are abnormal, performing the step 3);

3) And judging the abnormal minimum-stage filter, adjusting the slurry concentration and the slurry height in the minimum-stage filter to preset values by adjusting parameters such as the rotating speed of the ceramic plate, the rotating speed of the stirring paddle, the water inflow and the like, and continuing to operate and monitor.

Preferably, a control method using the high-salt solid waste integrated washing equipment comprises the following steps:

s01: inputting initial operation parameters and starting operation at a central controller, and presetting a control parameter slurry concentration standard value A1 and a slurry height standard value B1;

S02: monitoring the concentration and the height of the slurry in each stage of filter in the operation process, and if the slurry is normal, stably operating; if the slurry concentration and the slurry height in each stage of filter are abnormal, operating S03;

s03: judging whether the concentration of the slurry of the minimum level filter is abnormal, if so, operating S04, if so, judging whether the height of the slurry is abnormal, and if so, operating S05;

s04: according to the abnormal slurry concentration measured value A2 in the minimum filter, adjusting the feeding amount and the water inflow of the filter, when the slurry concentration value is restored to the initial value, restoring the feeding amount and the water inflow to the initial values, adjusting the rotating speed of the stirring paddle, continuously monitoring the slurry height in the washing tank, judging whether the slurry height is abnormal, if the slurry height is normal, continuously and stably operating, and if the slurry height is abnormal, operating S05;

s05: outputting an abnormal slurry height actual measurement value B2, adjusting a rotation regulator for controlling the rotation speed of the ceramic filter plate and a driver regulator for controlling the stirring paddle until the slurry height is restored to a normal value, adjusting an initial value of an operation parameter of the stage filter, continuously monitoring the high-stage filter, and if the slurry concentration and the slurry height are normal, stably operating or if the slurry concentration and/or the slurry height are abnormal, operating S03.

Further, in the step S04, if the abnormal minimum level filter is a first level filter, the total water amount at the water inlet of the first level filter measured by the flow sensor is w1, and the water amount at the water outlet of the first level filter is w2, then the feeding amount is adjusted, the variation value Δc2= (w 1-w 2) (A2-A1), the rotation speed of the stirring paddle is adjusted, and the variation value Δn2= (w 1-w 2) (A2-A1)/S is adjusted, wherein S is the single-rotation material conveying amount of the stirring paddle;

if the abnormal minimum level filter is a secondary filter, the flow of the water inlet of the secondary filter is w3, the flow of the water outlet of the secondary filter is w4, the water inflow of the tertiary filter is adjusted, the variation value delta h= (w 3-w 4) (A2-A1)/A1 is adjusted, and meanwhile, the rotating speed of the ceramic filter plate in the tertiary filter is adjusted, and the variation value delta n1 = dρf/delta hA1;

if the abnormal minimum level filter is a three-level filter, the flow of the water inlet of the three-level filter is w5, and the water quantity of the water inlet of the two-level filter is w3, the water inflow of the three-level filter is adjusted, and the variation value delta h= (w 5-w 3) (A2-A1)/A1;

s05: outputting an abnormal slurry height actual measurement value B2, and adjusting the rotating speed of the ceramic filter plate to be delta n 1= (B2-B1) ρg/dρf= (B2-B1) g/df, and adjusting the rotating speed of the stirring paddle according to n2/n1 = dρf/s;

Wherein d is the thickness of a filter cake on the ceramic filter plate, ρ is the material density, f is the adsorption area, n1 is the rotating speed of the ceramic plate, and g is the cross section area of the water washing tank at the standard water level.

As another preferred mode, a control method using the above-mentioned high-salt solid waste integrated washing equipment includes the following steps:

r01: inputting initial operation parameters and starting operation at a central controller, and presetting a control parameter slurry concentration standard value A1 and a slurry height standard value B1;

r02: monitoring the concentration and the height of the slurry in each stage of filter in the operation process, and if the slurry is normal, stably operating; if the slurry concentration and the slurry height in each stage of filter are abnormal, running R03;

r03: judging the abnormal minimum level filter, then judging the abnormal parameter of the level filter, and if the slurry height is abnormal and the slurry concentration is normal, adjusting the rotating speed of the ceramic filter plate and the rotating speed of the stirring paddle; if the slurry height is normal and the slurry concentration is abnormal, adjusting the rotating speed of the stirring paddle; if the slurry height and the slurry concentration are abnormal, simultaneously adjusting the rotating speed of the ceramic filter plate and the rotating speed of the stirring paddle; the slurry height and slurry concentration in the stage filter rinse tank are returned to normal values, and then the operating parameters of the stage rinse tank are initialized to continue to operate R02.

Further, the method comprises the steps of. The specific method of R03 is as follows:

(1) when the slurry height in the trough is abnormal and the slurry concentration is normal, directly outputting a slurry height actual measurement value A2, and calculating the deviation delta A=A2-A1; then, the rotating speed of the ceramic plate is adjusted, the initial value of the rotating speed of the ceramic plate is known as n1, the initial value of the rotating speed of the stirring paddle is known as n2, the cross section area of the water washing tank at the standard water level is g, the standard height standard value of slurry is A1, the slurry height change value delta A=A2-A1, the change value of the material quantity in the tank is delta c=delta A ρg, in addition, the material treatment capacity t=dρf1 of the vacuum ceramic filter is realized, d is the thickness of a filter cake, ρ is the material density, f is the adsorption area, n1 is the rotating speed of the ceramic plate, the change quantity delta n1 of the rotating speed of the ceramic plate of the filter is equal to n1 = n1 initial +delta Ag/df; in order to match the conveying capacity of the stirring paddles with the adjusted processing capacity of the ceramic filter, the rotating speed of the stirring paddles is adjusted, and if the single-rotation material conveying capacity of the stirring paddles is s, the rotating speed change quantity of the stirring paddles is deltan2=deltac/s=deltaaρg/s, and the rotating speed of the stirring paddles after adjustment is n2=n2 primary +deltaaρg/s;

(2) when the slurry height in the trough is normal and the slurry concentration is abnormal, directly outputting a slurry concentration actual measurement value B2, and calculating the deviation delta B=B2-B1; the rotating speed of the stirring paddle in the washing tank is regulated, and the charging amount in the tank of the ceramic filter is changed, so that the slurry concentration in the tank can be recovered to the standard value on the basis of not changing the slurry height; setting the initial value of the stirring paddle rotating speed as n2, setting B1=a1/B1, B2=a2/B2, wherein a1 and B1 are respectively the charging amount and the charging amount in a trough in a standard state, a2 and B2 are respectively actual measurement values of the charging amount and the charging amount in the trough, and B2=b1 is formed when no abnormality occurs in the slurry height, and in order to enable B2=b1, the change value of the charging amount in the trough is Δc=b1 (B1-B2), the change value of the stirring paddle rotating speed is Δn2=Δc/s=b1 (B1-B2)/s, and the adjusted stirring paddle rotating speed is n2=n2 primary +b1 (B1-B2)/s;

(3) When the slurry height and the slurry concentration in the trough are abnormal, two parameters are adjusted simultaneously, an actual measurement value A2 of the slurry height and an actual measurement value B2 of the slurry concentration are directly output, and the deviation delta A=A2-A1 and delta B=B2-B1 are calculated respectively; by adjusting the rotation speed of the ceramic plate and the rotation speed of the stirring paddle at the same time, the related parameters are restored to the standard values, and the change amount of the rotation speed of the stirring paddle is the superposition of the slurry height adjustment amount and the slurry concentration adjustment amount, the rotation speed of the ceramic plate after adjustment is n1=n1primary+ΔAg/df, and the rotation speed of the stirring paddle after adjustment is n2=n2primary+ΔAρg/s+b1 (B1-B2)/s.

Compared with the prior art, the water washing equipment and the control method provided by the invention have the following advantages:

(1) The three-stage filters are vertically arranged, the position of the water washing tank in the two-stage filter and the steering direction of the ceramic plate are just opposite to those of the first-stage filter and the three-stage filter, and the materials after the treatment at each stage can be directly conveyed under the action of gravity, so that the configuration of related equipment in the material conveying process is greatly simplified;

(2) The washing tank is combined with the vacuum ceramic filter to form integrated washing filtering equipment, and the washed materials are directly conveyed into the filter tank under the extrusion action of the stirring paddle, so that the continuity of a washing and filtering working system is further enhanced;

(3) The vacuum ceramic filter is adopted to filter the washed materials, and the equipment has a series of advantages of high production capacity, high degree of automation, good filtering effect, low energy consumption and the like in combination with the application situation of engineering sites;

(4) The sewage generated by the next-stage filter is directly pumped to the previous stage by pumping water and is used as the water washing water of the previous-stage filter, so that the self-circulation of the water flow system is realized, and only two external supplementing water inlets are needed to be arranged in the whole system.

Drawings

FIG. 1 is a flow chart of a prior art three-stage countercurrent water washing process;

FIG. 2 is a schematic structural view of the integrated water washing apparatus of the present invention;

FIG. 3 is a flow chart of one embodiment of the control method of the present invention;

FIG. 4 is a flow chart of another embodiment of the control method of the present invention;

in fig. 2: the device comprises a feed inlet 1, a primary washing tank 2, a primary stirring paddle 3, a primary vacuum ceramic filter 4, a secondary washing tank 5, a secondary stirring paddle 6, a secondary vacuum ceramic filter 7, a tertiary washing tank 8, a tertiary stirring paddle 9, a tertiary vacuum ceramic filter 10, a discharge outlet 11, a shell 12, a tertiary water inlet 13, a tertiary water outlet 14, a tertiary water pump 15, a secondary water inlet 16, a secondary water outlet 17, a secondary water pump 18, a complementary waterway 19, a primary water inlet 20, a primary water outlet 21, a primary water pump 22 and a sewage storage tank 23.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 2, the invention provides a high-salt solid waste integrated washing device,

the filter comprises a shell 12, wherein a primary filter, a secondary filter and a tertiary filter are arranged in the shell 12 from top to bottom, a feed inlet 1 is arranged at the top of the shell 12, and a discharge outlet 11 is arranged at the bottom of the shell 12;

the primary filter comprises a primary washing tank 2, a primary stirring paddle 3 and a primary vacuum ceramic filter 4;

the primary washing tank 2 is divided into a primary ceramic filter plate material tank area and a primary stirring paddle area, a primary vacuum ceramic filter 4 is installed in the primary ceramic filter plate material tank area, a primary stirring paddle 3 is installed in the primary stirring paddle area, a feeding port 1 is aligned above the primary stirring paddle 3, the primary vacuum ceramic filter 4 comprises a ceramic filter plate and a hollow rotating shaft, and a scraping port matched with the ceramic filter plate is formed in the primary washing tank 2;

A secondary filter is arranged below the primary filter and comprises a secondary washing tank 5, a secondary stirring paddle 6 and a secondary vacuum ceramic filter 7;

the secondary washing tank 5 is divided into a secondary ceramic filter plate material tank area and a secondary stirring paddle area, a secondary vacuum ceramic filter 7 is arranged in the secondary ceramic filter plate material tank area, a secondary stirring paddle 6 is arranged in the secondary stirring paddle area, the upper part of the secondary stirring paddle 6 is opposite to a scraping port of the primary washing tank 2, the secondary vacuum ceramic filter 7 comprises a ceramic filter plate and a hollow rotating shaft, and the secondary washing tank 5 is provided with a scraping port matched with the ceramic filter plate;

a three-stage filter is arranged below the two-stage filter and comprises a three-stage washing tank 8, a three-stage stirring paddle 9 and a three-stage vacuum ceramic filter 10;

the three-stage washing tank 8 is divided into a three-stage ceramic filter plate material tank area and a three-stage stirring paddle area, a three-stage vacuum ceramic filter 10 is arranged in the three-stage ceramic filter plate material tank area, a three-stage stirring paddle 9 is arranged in the three-stage stirring paddle area, the upper part of the three-stage stirring paddle 9 is opposite to a scraping port of the two-stage washing tank 5, the three-stage vacuum ceramic filter 10 comprises a ceramic filter plate and a hollow rotating shaft, and the three-stage washing tank 8 is provided with a scraping port matched with the ceramic filter plate;

The scraping port of the three-stage washing tank 8 is vertically opposite to the discharging port 11.

Further, a primary water inlet 20 is formed in the primary washing tank 2 close to the primary stirring paddle 3, and a primary water outlet 21 is formed in the primary washing tank 2 close to the primary vacuum ceramic filter 4; the secondary water washing tank 5 is provided with a secondary water inlet 16 close to the secondary stirring paddle 6, and the secondary water washing tank 5 is provided with a secondary water outlet 17 close to the secondary vacuum ceramic filter 7; the three-stage washing tank 8 is provided with a three-stage water inlet 13 close to the three-stage stirring paddle 9, and the three-stage washing tank 8 is provided with a three-stage water outlet 14 close to the three-stage vacuum ceramic filter 10; the three-level water inlet 13 is connected with a water inlet pipeline, the three-level water outlet 14 and the two-level water inlet 16 are connected through a pipeline and are provided with a three-level water pump 15, the two-level water outlet 17 and the one-level water inlet 20 are connected through a pipeline and are provided with a two-level water pump 18, the one-level water outlet 21 is connected with a water outlet pipeline and is communicated with a sewage storage tank 23, the water outlet pipeline is provided with a one-level water pump 22, and the one-level water inlet 20 is also communicated with a complementary waterway 19 in parallel.

Further, the ceramic filter plate is equipped with the inner chamber in the annular ceramic filter plate, be equipped with the filtration pore on the board of ceramic filter plate inner chamber both sides, ceramic filter plate cover is in the periphery of cavity axis of rotation, ceramic filter plate inner chamber with the inner chamber of cavity axis of rotation communicates with each other, one-level filter assembly, two-stage filter assembly and three-stage filter assembly still include the vacuum pump respectively, the inner chamber of cavity axis of rotation communicates with the extraction opening of vacuum pump, the cavity axis of rotation is installed respectively through the bearing in one-level wash bowl 2, two-stage wash bowl 5 and the three-stage wash bowl 8, install the filter rotation driver in the cavity axis of rotation respectively.

The working principle of the vacuum ceramic filter is that the hollow area in the porous ceramic filter plate forms large negative pressure under the air suction effect of the vacuum system, when the porous filter plate in the ceramic filter plate rotates to be immersed in slurry, the slurry is adsorbed on the filter plate by the negative pressure, liquid enters the hollow cavity through the porous structure of the filter plate and flows out through the rotating shaft, solids are adhered on the filter plate to a certain thickness, the slurry is separated, the liquid in the material is further sucked out to form a filter cake by continuous negative pressure adsorption, the water content of the filter cake reaches about 15-20%, and when the porous ceramic filter plate passes through the scraping opening, the filter cake is stripped from the ceramic filter plate by the scraping opening, and the material is sent into the next-stage filter.

Further, a plurality of ceramic filter plates are arranged on the hollow rotating shaft, a scraping opening is respectively arranged on each ceramic filter plate corresponding to each primary washing tank 2, a scraping opening is respectively arranged on each ceramic filter plate corresponding to each secondary washing tank 5, a scraping opening is respectively arranged on each ceramic filter plate corresponding to each tertiary washing tank 8, and the quantity of the required ceramic filter plates can be flexibly installed according to the needs.

Further, the rotation direction of the ceramic filter plates in the secondary water washing tank 5 is opposite to the rotation direction of the ceramic filter plates in the primary water washing tank 2, and the scraping opening of the secondary water washing tank 5 is on the same side as the stirring paddles in the primary water washing tank 2 and the tertiary water washing tank 8. The primary washing tank, the secondary washing tank and the tertiary washing tank which are arranged in this way are aligned in the vertical direction, so that the space can be saved.

Further, the first-stage stirring paddles 3, the second-stage stirring paddles 6 and the third-stage stirring paddles 9 are respectively provided with stirring paddle drivers for respectively driving the three stirring paddles to rotate.

Further, the device also comprises a control system, the control system comprises a central controller, slurry concentration detectors and slurry height detectors are respectively arranged on the primary water washing tank 2, the secondary water washing tank 5 and the tertiary water washing tank 8, flow detectors are respectively arranged on the primary water outlet 21, the primary water inlet 20, the secondary water outlet 17, the secondary water inlet 16, the tertiary water outlet 14, the tertiary water inlet 13 and the supplementing waterway 19, valve adjusting controllers are respectively arranged on the primary water pump 22, the secondary water pump 18 and the tertiary water pump 15, driver regulators are respectively arranged on the stirring paddle drivers, and rotation regulators are respectively arranged on the filter plate rotation drivers;

The material washing process is as follows: the high-salt solid waste directly enters the primary washing tank 2 through the feed inlet 1 to be washed, and the primary stirring paddle 3 is arranged in the primary washing tank 2, so that on one hand, the stirring of the stirring paddle can realize the full separation and hydrolysis of materials, on the other hand, the extrusion effect of the stirring paddle can convey the washed high-salt solid waste into the tank area of the primary ceramic filter plate, and the primary washing is directly completed through the adsorption separation of the primary vacuum ceramic filter 4. Because the scraping opening corresponding to the upper-stage vacuum ceramic filter is positioned right above the lower-stage washing tank, the transfer of materials between each stage can be completed directly under the action of gravity, and the configuration and the conveying time of related equipment in the material conveying process are greatly simplified. Therefore, the filtered ash after the first-stage filter is filtered can directly enter the second-stage washing tank 5, and the second-stage washing filtration is completed under the combined action of the second-stage stirring paddle 6 and the second-stage vacuum ceramic filter 7. Similarly, after the filtered ash falls into the three-stage washing tank 8, the third-stage washing filtration is completed under the combined action of the three-stage stirring paddles 9 and the three-stage vacuum ceramic filter 10, and then the filtered ash is discharged from the discharge port 11.

In addition, the water flow conveying route during operation is as follows: industrial water enters the three-stage washing tank 8 from the three-stage water inlet 13, is discharged from the three-stage water outlet 14 under the vacuum adsorption action of the three-stage vacuum ceramic filter 10 after washing, and enters the two-stage washing tank 5 from the two-stage water inlet 16 under the action of the three-stage water pump 15. Similarly, after the second-stage water washing is finished, the water enters the first-stage water washing tank 2 through the second-stage water outlet 16 under the action of the second-stage vacuum ceramic filter 7 and through the first-stage water inlet 20 under the action of the water pump 18. The method can realize self circulation of the water flow system, simplify the control flow and greatly reduce the water consumption.

In order to continuously operate the equipment and improve the washing efficiency and reduce the energy consumption, the concentration of slurry in the three-stage filter is required to be basically consistent, the optimal treatment effect of the vacuum ceramic filter is ensured, a water supplementing channel 19 is arranged on the first-stage filter, and sewage generated after the first-stage washing is directly conveyed to a sewage storage tank 23 through a first-stage water outlet pipe 21 under the action of a water pump 22 for treating and recycling corresponding elements.

The water inflow of the three-stage water inlet 13 is a, the water inflow of the complementary waterway 19 of the first-stage water inlet 20 is b, the feed amount c of the feed inlet 1 is controlled to be a, the water discharge amounts of the three-stage water outlet 14, the two-stage water outlet 17 and the first-stage water outlet 21 are controlled to be a, and the discharge amount of the discharge outlet 11 is controlled to be b+c.

In a normal working state, the working effect and the working capacity of the stirring paddles and the vacuum ceramic filter in the three-stage filter are always consistent. For a material conveying system, the balance operation of materials is mainly realized through two aspects, namely, the basically synchronous treatment capacity of each stage of filter is ensured, and the conveying capacity of a stirring paddle in a single-stage filter is ensured to be matched with the treatment capacity of a vacuum ceramic filter. For the water flow circulation system, the total water inflow of the three-stage filter is the industrial water input quantity a plus the water content b of the filter ash falling from the two-stage filter, the total water inflow of the two-stage filter is the sewage quantity a recovered by the three-stage filter plus the water content b of the filter ash falling from the two-stage filter, the total water inflow of the one-stage filter is the sewage quantity a recovered by the three-stage filter, and the water outflow of each stage filter is the water outflow a of the filter and the water content b of the filtered material. Therefore, the water flow systems of each stage can balance the inlet and outlet of the control water flow through self circulation, and in order to maintain the water flow balance of the whole system, a water supplementing channel 19 is added to the first-stage filter, and the water supplementing inflow is equal to the water content b of the finally discharged material of the system.

In order to enable the high-salt solid waste integrated washing equipment to operate more stably and effectively, the invention also provides a control method of the high-salt solid waste integrated washing equipment, which comprises the following steps:

Preferably, the control method may include the steps of:

1) In the primary water washing system, water discharged from a secondary water outlet (17) of a secondary water washing tank (5) and water entering from a supplementing waterway (19) enter a primary water washing tank 2 through a primary water inlet 20, materials enter a primary filter from a material inlet, water and materials are fully mixed for primary water washing through stirring of a primary stirring paddle 3, the materials are separated through a primary filtering component, the materials fall into the secondary water washing tank 5 from a scraping port, and sewage is discharged from a primary water outlet 21;

2) In the secondary water washing system, water discharged from a third-stage water outlet 14 of a third-stage water washing tank 8 enters a second-stage water washing tank 5 through a second-stage water inlet 16, materials falling into the second-stage water washing tank 5 from a scraping port of a first-stage filter assembly are stirred by a second-stage stirring paddle 6, water and the materials are fully mixed for secondary water washing, and the materials are separated by the second-stage filter assembly and fall into the third-stage water washing tank 8 from the scraping port;

3) In the tertiary washing system, water enters the tertiary washing tank 8 through the tertiary water inlet 13, scrapes the material that the material mouth falls into tertiary washing tank 8 from the secondary filter component, through the stirring of tertiary stirring rake 9, water and material intensive mixing carry out tertiary washing, separate through the tertiary filter component, and the material falls into bin outlet 11 from scraping the material mouth, accomplishes washing and separation.

In order to improve the washing efficiency of the device and reduce the energy consumption, the water inflow of the third-stage water inlet 13 is a, the water inflow of the supplementary waterway 19 of the first-stage water inlet 20 is b, the water inflow c of the feed inlet 1 is controlled to be a, the water drains of the third-stage water outlet 14, the second-stage water outlet 17 and the first-stage water outlet 21 are controlled to be b+c, and the water drain of the discharge outlet 11 is controlled to be b+c.

Preferably, as shown in fig. 3, the control method provided by the present invention may be implemented specifically by the following steps:

In the step S04, if the abnormal minimum level filter is a first level filter, the total water amount of the water inlet of the first level filter measured by the flow sensor is w1, and the water amount of the water outlet of the first level filter is w2, then the feeding amount is adjusted, the change value Δc2= (w 1-w 2) (A2-A1), the rotation speed of the stirring paddle is adjusted, and the change value Δn2= (w 1-w 2) (A2-A1)/S is adjusted, wherein S is the single-rotation material conveying amount of the stirring paddle;

if the abnormal minimum level filter is a three-level filter, the flow of the water inlet of the three-level filter is w5, and the water quantity of the water inlet of the two-level filter is w3, the water inlet of the three-level filter is adjusted, and the variation value delta h= (w 5-w 3) (A2-A1)/A1 is changed.

Wherein, S05: outputting an abnormal slurry height actual measurement value B2, and adjusting the rotating speed of the ceramic filter plate to be delta n1= (B2-B1) g/df, and adjusting the rotating speed of the stirring paddle according to n 2/n1=dρf/s;

With reference to fig. 3, the invention further provides an alternative embodiment of the control method as follows:

(1) Initial operating parameters are set according to the production requirements, such as: the method comprises the steps of feeding, water inflow, supplementary water inflow, stirring paddle rotating speed, vacuum ceramic filter rotating speed, vacuum system operating power and the like, and starting the system to start to operate;

(2) The slurry concentration and height standard value which can enable the system to achieve the optimal operation effect under the operation state are set, and the change condition of parameters in the operation process is monitored in real time;

(3) When the measured data of the slurry concentration and the height in each level of filter are stable to the standard value, the system keeps running stably, otherwise, when any monitoring parameter deviates from the standard value, the system is directly positioned to the minimum washing stage number with abnormal parameters, and the system is correspondingly adjusted by combining the type and the deviation of the abnormal parameters;

(4) Firstly, judging whether the slurry concentration in the trough is abnormal, if not, directly entering the next step, and if so, adjusting. The adjustment process is as follows: (1) and outputting the slurry concentration actual measurement value A2. (2) And (3) respectively taking different measures according to different positioning stages to restore the slurry concentration to a standard value, so as to ensure that only the minimum water washing stage number with problems and the subsequent filter are adjusted in the system control process. The water inlets of the filters at all levels and the water outlets of the filters at one level are respectively provided with a flow sensor, and when the slurry concentration is monitored to be abnormal, the system immediately outputs data monitored by the flow sensors. And I, when the slurry is positioned to the first-stage filter, the feeding quantity is adjusted firstly, and meanwhile, the rotating speed of the stirring paddle is adjusted, so that the slurry concentration is adjusted. Knowing that the standard value of the slurry concentration is A1, the total water quantity of a water inlet of the primary filter measured by a flow sensor is w1, the water quantity of a water outlet is w2, and then the water quantity in a trough is w1-w2, and the actual measured value of the slurry concentration is A2=c2/(w 1-w 2); in addition, if the single-rotation material conveying amount of the stirring paddle is s, in order to make a2=a1, the change value of the feeding amount should be Δc2= (w 1-w 2) (A2-A1) and the change value of the stirring paddle rotation speed should be Δn2=Δc2/s= (w 1-w 2) (A2-A1)/s compared with the initial value. And II, when the water is positioned to the secondary filter, the water inflow of industrial water of the tertiary filter is adjusted firstly, and meanwhile, the water inflow to the secondary filter is changed by adjusting the treatment speed of the tertiary vacuum ceramic filter, so that the concentration of slurry is adjusted. Given that the flow rate at the water inlet of the two-stage filter is w3, the flow rate at the water outlet is w4, the water amount in the trough is w3-w4, and the actual measurement value a2=c2/(w 3-w 4), the change value of the system water inflow is Δh= (w 3-w 4) (A2-A1)/A1 in order to make a2=a1, compared with the initial value. In addition, the material handling capacity t1=dρfn1 of the vacuum ceramic filter (where d is the filter cake thickness, ρ is the material density, f is the adsorption area, and n1 is the ceramic plate rotation speed), and the material handling capacity t 1/water handling capacity t2=a1 (the slurry concentration in the trough should be ensured to be consistent all the time during operation), and the change value of the filter plate rotation speed is Δn1=dρf/Δha1, which can be obtained by combining the above calculation results. When the slurry is positioned to the three-stage filter, the slurry concentration can be directly adjusted by adjusting the water inflow, and the water inflow of the three-stage filter is known as w5, the water inflow in the trough is known as w5-w3, the actual measurement value A2=c2/(w 5-w 3), and in order to enable A2=A1, the change value of the system water inflow is Δh= (w 5-w 3) (A2-A1)/A1 compared with the initial value. (3) After the slurry concentration is recovered, the feeding amount, the water inflow amount, the rotating speed of the stirring paddle and the rotating speed of the filter plate are regulated again according to different conditions, so that the system keeps running stably. On the one hand, the feeding quantity is restored to an initial value c, the water inflow is restored to an initial value a, the rotation speed of the filter plate is restored to an initial value n1, on the other hand, the rotation speed of the stirring paddles is adjusted to enable the conveying quantity of the stirring paddles to be matched with the processing quantity of the ceramic filter, the processing quantity t=dρf1 of the ceramic filter is known, the single-rotation material conveying quantity of the stirring paddles is s, and then the rotation speed of the stirring paddles is n2=t/s=dρf1/s.

(5) And then judging whether the slurry concentration in the trough is abnormal, if not, directly entering the next step, and if so, adjusting. The adjustment process is as follows: (1) outputting a slurry height actual measurement value B2; (2) the rotating speed of the ceramic plate is regulated, and the processing speed of the ceramic filter is changed, so that the height of the slurry is recovered to the standard value. Knowing that the cross-sectional area of the water washing tank at the standard water level is g, the standard slurry height value is B1, the slurry height change value Δb=b2-B1, the material quantity change value in the tank is Δc1=Δbρg, the ceramic plate rotational speed change amount Δn1=Δc1/dρf=Δbρg/dρf=Δbg/df is obtained from the ceramic filter processing amount calculation formula t=dρf1, and the adjusted ceramic plate rotational speed is n1=n1 primary+Δbg/df. (3) Adjusting the rotating speed of the stirring paddle to ensure that the conveying capacity of the stirring paddle is matched with the processing capacity of the ceramic filter after adjustment, ensuring the stability of the slurry concentration and the material balance of the system, and combining the formula in (4) to obtain a relational expression n 2/n1=dρf/s between the rotating speed of the stirring paddle and the rotating speed of the ceramic filter;

(6) After the slurry concentration and the height of the stage filter are adjusted to standard values, the related operation parameters of the stage system are initialized in order to meet the yield requirement;

(7) Monitoring related parameters of other advanced stage filters, if abnormality occurs, positioning to the minimum washing stage number with problems, and adjusting the system according to the steps;

(8) And after the slurry concentration and the height of each stage of filter are adjusted to the standard values, the system keeps stable operation.

As shown in fig. 4, the control method of the present invention may also be implemented by:

The specific method of R03 is as follows:

(3) When the slurry height and the slurry concentration in the trough are abnormal, two parameters are adjusted at the same time, an actual measurement value A2 of the slurry height and an actual measurement value B2 of the slurry concentration are directly output, deviation amounts delta A=A2-A1 and delta B=B2-B1 are calculated respectively, the rotation speed of the ceramic plate and the rotation speed of the stirring paddles are adjusted at the same time, the relevant parameters are restored to standard values, the change amount of the rotation speed of the stirring paddles is superposition of the slurry height adjustment amount and the slurry concentration adjustment amount, the calculation results in (1) and (2) are combined, the rotation speed of the ceramic plate after adjustment is n1=n1 primary+delta Ag/df, the change amount of the rotation speed of the corresponding stirring paddles is delta n2=delta Aρg/s in the slurry height adjustment process, the change value of the rotation speed of the corresponding stirring paddles is delta n2=b1 (B1-B2)/s in the slurry height adjustment process, and the rotation speed of the stirring paddles after adjustment is n2=n2+Δaρg/s+b1 (B1-B2)/s.

The control method of the invention has the following advantages:

(1) Only two process parameters of slurry concentration and slurry height which have great influence on the production efficiency of equipment are monitored to be used as a control main body, and the running state of each stage of filter is mastered by real-time monitoring data. Meanwhile, when the measured data of a certain washing stage number exceeds the parameter setting range, the related operation parameters (water inflow, feeding amount, stirring paddle rotating speed and ceramic filter plate rotating speed) are adjusted, so that the measured data of slurry concentration and slurry height are restored to the optimal operation parameter range, the control flow is simplified, and the adjustment efficiency is improved.

(2) The utilization rate of equipment can be maximized, the production efficiency is ensured, the consumption of energy sources such as water consumption, electricity consumption and the like is reduced, and the water washing effect of each level of filter and the operation effect of the vacuum ceramic filter can be maximized by monitoring and regulating the concentration of slurry and the height of the slurry in real time, so that the optimal production is achieved;

(3) In the regulation and control process, the two main body control parameters are independently regulated, and different filters correspond to different regulation and control methods, so that the accurate regulation and control of the filters can be realized;

(4) The step regulation and control mode from top to bottom is adopted between the filters at all levels, so that the influence of the next-stage system on the previous-stage system can be avoided, the washing stage number required to be regulated is reduced, and the influence of the regulation and control process on the operation of the whole equipment is reduced.

(5) The control scheme of the invention can realize the integral regulation and control of the three-stage system comprising water washing and filtering, and provides a definite control scheme aiming at the problems of coupling control of the water washing and filtering systems and the mutual influence among the systems of all stages, thereby ensuring the operation efficiency on the basis of realizing the stable operation of the integrated water washing equipment;

(6) The control scheme of the invention adopts a mode of double-factor adjustment, so that the influence of another parameter on the operation effect of the equipment in the single-factor adjustment process can be avoided, the control process is more comprehensive, and the operation efficiency of the equipment can be further improved.

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

1. A control method of high-salt solid waste integrated washing equipment is characterized by comprising the following steps of:

the high-salt solid waste integrated washing equipment comprises: the device comprises a shell (12), wherein a primary filter, a secondary filter and a tertiary filter are arranged in the shell (12) from top to bottom, a feed inlet (1) is arranged at the top of the shell (12), and a discharge outlet (11) is arranged at the bottom of the shell (12);

the primary filter comprises a primary washing tank (2), a primary stirring paddle (3) and a primary vacuum ceramic filter (4);

the primary washing tank (2) is divided into a primary ceramic filter plate material tank area and a primary stirring paddle area, a primary vacuum ceramic filter (4) is installed in the primary ceramic filter plate material tank area, a primary stirring paddle (3) is installed in the primary stirring paddle area, a feeding port (1) is aligned above the primary stirring paddle (3), the primary vacuum ceramic filter (4) comprises a ceramic filter plate hollow rotating shaft, and a scraping port matched with the ceramic filter plate is arranged on the primary washing tank (2);

The primary water washing tank (2) is provided with a primary water inlet (20) close to the primary stirring paddle (3), and the primary water washing tank (2) is provided with a primary water outlet (21) close to the primary vacuum ceramic filter (4);

a secondary filter is arranged below the primary filter and comprises a secondary washing tank (5), a secondary stirring paddle (6) and a secondary vacuum ceramic filter (7);

the secondary washing tank (5) is divided into a secondary ceramic filter plate trough area and a secondary stirring paddle area, a secondary vacuum ceramic filter (7) is arranged in the secondary ceramic filter plate trough area, a secondary stirring paddle (6) is arranged in the secondary stirring paddle area, the upper part of the secondary stirring paddle (6) is opposite to a scraping port of the primary washing tank (2), the secondary vacuum ceramic filter (7) comprises a ceramic filter plate hollow rotating shaft, and the secondary washing tank (5) is provided with a scraping port matched with the ceramic filter plate;

the secondary water washing tank (5) is provided with a secondary water inlet (16) close to the secondary stirring paddle (6), and the secondary water washing tank (5) is provided with a secondary water outlet (17) close to the secondary vacuum ceramic filter (7);

A three-stage filter is arranged below the two-stage filter and comprises a three-stage washing tank (8), a three-stage stirring paddle (9) and a three-stage vacuum ceramic filter (10);

the three-stage washing tank (8) is divided into a three-stage ceramic filter plate material tank area and a three-stage stirring paddle area, a three-stage vacuum ceramic filter (10) is arranged in the three-stage ceramic filter plate material tank area, a three-stage stirring paddle (9) is arranged in the three-stage stirring paddle area, the upper part of the three-stage stirring paddle (9) is opposite to a scraping port of the two-stage washing tank (5), the three-stage vacuum ceramic filter (10) comprises a ceramic filter plate hollow rotating shaft, and the three-stage washing tank (8) is provided with a scraping port matched with the ceramic filter plate;

the three-stage washing tank (8) is provided with a three-stage water inlet (13) close to the three-stage stirring paddle (9), and the three-stage washing tank (8) is provided with a three-stage water outlet (14) close to the three-stage vacuum ceramic filter (10);

the three-level water inlet (13) is connected with a water inlet pipeline, the three-level water outlet (14) is connected with the two-level water inlet (16) through a pipeline, a three-level water pump (15) is arranged between the three-level water outlet (14) and the two-level water inlet (20), the two-level water outlet (17) is connected with the one-level water inlet (20) through a pipeline, the two-level water pump (18) is arranged between the two-level water outlet (17) and the two-level water inlet, the one-level water outlet (21) is connected with a water outlet pipeline and communicated with a sewage storage tank (23), the one-level water pump (22) is arranged on the water outlet pipeline, and the one-level water inlet (20) is also communicated with a water supplementing channel (19) in parallel;

The scraping opening of the three-stage washing tank (8) is vertically opposite to the discharging opening (11);

the high-salt solid waste integrated washing equipment also comprises a control system, wherein the control system comprises a central controller,

the device comprises a primary water washing tank (2), a secondary water washing tank (5) and a tertiary water washing tank (8), wherein a slurry concentration detector and a slurry height detector are respectively arranged on the primary water outlet (21), a primary water inlet (20), a secondary water outlet (17), a secondary water inlet (16), a tertiary water outlet (14), a tertiary water inlet (13) and a complementary waterway (19), flow detectors are respectively arranged on the primary water pump (22), the secondary water pump (18) and the tertiary water pump (15), valve adjusting controllers are respectively arranged on the primary water pump (22), the secondary water pump (18) and the tertiary water pump (15), stirring paddle drivers are respectively arranged on the primary stirring paddles (3), the secondary stirring paddles (6) and the tertiary stirring paddles (9), driver regulators are respectively arranged on the stirring paddle drivers, filter plate rotating drivers are respectively arranged on hollow rotating shafts of ceramic filter plates, and rotating regulators are respectively arranged on the filter plate rotating drivers;

all the slurry concentration detector, the slurry height detector, the flow detector, the valve adjusting controller, the rotation adjuster and the driver adjuster are respectively and electrically connected with the central controller, and the vacuum pump controller is also electrically connected with the central controller;

The control method for the high-salt solid waste integrated washing equipment comprises the following steps:

the water discharged from a secondary water outlet (17) of the secondary water washing tank (5) and the water entering from a supplementing waterway (19) enter the primary water washing tank (2) through a primary water inlet (20), materials enter a primary filter from a material inlet, the materials are fully mixed by a primary stirring paddle (3) and washed once by water, the materials are separated by the primary filter, the materials fall into the secondary water washing tank (5) from a scraping port, and sewage is discharged from a primary water outlet (21);

(2) The water discharged from the third-stage water outlet (14) of the third-stage water washing tank (8) enters the second-stage water washing tank (5) through the second-stage water inlet (16), the material falling into the second-stage water washing tank (5) from the scraping port of the first-stage filter is stirred by the second-stage stirring paddle (6), the water and the material are fully mixed for secondary water washing, and the material is separated by the second-stage filter and falls into the third-stage water washing tank (8) from the scraping port;

(3) Water enters the three-stage washing tank (8) through the three-stage water inlet (13), the materials falling into the three-stage washing tank (8) from the scraping port of the two-stage filter are stirred by the three-stage stirring paddle (9), the water and the materials are fully mixed for three times to be washed, and the materials fall into the discharging port (11) from the scraping port after being separated by the three-stage filter, so that the water washing and the separation are completed;

The water inflow of the three-stage water inlet (13) is a, the water inflow of the complementary waterway (19) of the first-stage water inlet (20) is b, the feed amount c of the feed inlet (1) is controlled, the drainage amounts of the three-stage water outlet (14), the two-stage water outlet (17) and the first-stage water outlet (21) are all a, and the drainage amount of the discharge outlet (11) is controlled to be b+c;

the slurry parameter control method for the running high-salt solid waste integrated washing equipment comprises the following steps:

3) And judging the abnormal minimum level filter, and adjusting the slurry concentration and the slurry height in the level filter to preset values by adjusting the rotation speed of the ceramic plate, the rotation speed of the stirring paddle and the water inflow parameter, and continuing to operate and monitor.

2. The control method of the high-salt solid waste integrated washing equipment as claimed in claim 1, wherein the control method comprises the following steps:

The hollow rotating shaft of the ceramic filter plate comprises: the ceramic filter plate and the hollow rotating shaft, an inner cavity is formed in the annular ceramic filter plate, filtering holes are formed in plates on two sides of the inner cavity of the ceramic filter plate, the ceramic filter plate is sleeved on the periphery of the hollow rotating shaft, the inner cavity of the ceramic filter plate is communicated with the inner cavity of the hollow rotating shaft, the primary filter, the secondary filter and the tertiary filter further respectively comprise a vacuum pump, the inner cavity of the hollow rotating shaft is communicated with an extraction opening of the vacuum pump, and the hollow rotating shaft is respectively installed in the primary washing tank (2), the secondary washing tank (5) and the tertiary washing tank (8) through bearings.

3. The control method of the high-salt solid waste integrated washing equipment as claimed in claim 2, wherein the control method comprises the following steps:

be equipped with a plurality of ceramic filter on the cavity axis of rotation, it scrapes the material mouth to correspond every ceramic filter on one-level wash bowl (2) respectively, it scrapes the material mouth to correspond every ceramic filter on second grade wash bowl (5) respectively, it scrapes the material mouth to correspond every ceramic filter on tertiary wash bowl (8) respectively.

4. The control method of the high-salt solid waste integrated washing equipment as claimed in claim 3, wherein:

The rotation direction of the ceramic filter plates in the secondary washing tank (5) is opposite to the rotation direction of the ceramic filter plates in the primary washing tank (2), and the scraping opening of the secondary washing tank (5) is on the same side as the stirring paddles in the primary washing tank (2) and the tertiary washing tank (8).

5. The control method of the high-salt solid waste integrated washing equipment as claimed in claim 1, comprising the steps of:

s01, inputting initial operation parameters into a central controller and starting operation, and presetting a control parameter slurry concentration standard value A1 and a slurry height standard value B1;

s02, monitoring the concentration and the height of the slurry in each stage of filter in the operation process, and if the slurry is normal, stably operating; if the slurry concentration and the slurry height in each stage of filter are abnormal, operating S03;

s04, according to an abnormal slurry concentration actual measurement value A2 in the minimum level filter, adjusting the feeding amount and the water inflow of the filter, when the slurry concentration value is restored to an initial value, restoring the feeding amount and the water inflow to the initial values, adjusting the rotating speed of the stirring paddle, continuously monitoring the slurry height in the washing tank, judging whether the slurry height is abnormal, if the slurry height is normal, continuously and stably operating, and if the slurry height is abnormal, operating S05;

S05, outputting an abnormal slurry height actual measurement value B2, adjusting a rotation regulator for controlling the rotation speed of the ceramic filter plate and a driver regulator for controlling the stirring paddle until the slurry height is restored to a normal value, adjusting the operation parameters of the stage filter to initial values, continuously monitoring the advanced stage filter, stably operating if the slurry concentration and the slurry height are normal, and operating S03 if the slurry concentration and/or the slurry height are abnormal.

6. The control method of the high-salt solid waste integrated washing equipment as claimed in claim 5, comprising the steps of:

If the abnormal minimum level filter is a three-level filter, the flow of the water inlet of the three-level filter is w5, and the water quantity of the water outlet of the three-level filter is w3, the water inflow of the three-level filter is adjusted, and the variation value delta h= (w 5-w 3) (A2-A1)/A1;

s05, outputting an abnormal slurry height actual measurement value B2, and adjusting the rotating speed of the ceramic filter plate to be delta n 1= (B2-B1) ρg/dρf= (B2-B1) g/df, and adjusting the rotating speed of the stirring paddle according to n2/n1 = dρf/S;

7. The control method of the high-salt solid waste integrated washing equipment as claimed in claim 6, which is characterized by comprising the following steps:

r01, inputting initial operation parameters in a central controller and starting operation, and presetting a control parameter slurry concentration standard value A1 and a slurry height standard value B1;

r02, monitoring the concentration and the height of the slurry in each stage of filter in the operation process, and if normal, stably operating; if the slurry concentration and the slurry height in each stage of filter are abnormal, running R03;

r03: judging the abnormal minimum level filter, then judging the abnormal parameters of the level filter, and if the slurry height is abnormal and the slurry concentration is normal, adjusting the rotating speed of the ceramic filter plate and the rotating speed of the stirring paddle; if the slurry height is normal and the slurry concentration is abnormal, adjusting the rotating speed of the stirring paddle; if the slurry height and the slurry concentration are abnormal, simultaneously adjusting the rotating speed of the ceramic filter plate and the rotating speed of the stirring paddle; the slurry height and slurry concentration in the stage filter rinse tank are returned to normal values, and then the operating parameters of the stage rinse tank are initialized to continue to operate R02.

8. The control method of the high-salt solid waste integrated washing equipment as claimed in claim 7, wherein:

the specific method of R03 is as follows: