An intelligent ultrasonic washing system for fly ash resource utilization

Abstract

The invention discloses an intelligent ultrasonic water washing system for fly ash resource utilization, which relates to the technical field of fly ash treatment, and comprises two groups of symmetrically arranged racks, wherein a thrust plate and a clamping plate are arranged between the two groups of racks, the thrust plate is fixed to one side rack, and a clamping module is arranged on the other side rack for driving the clamping plate to approach or move away from the thrust plate; wherein a plurality of groups of filter press plate frames are arranged between the thrust plate and the clamping plate, wherein a first clamping plate and a second clamping plate are symmetrically and slidably arranged in the filter press plate frame, the first clamping plate and the second clamping plate are embedded in the filter press plate frame and form a concave cavity, the first clamping plate and the second clamping plate are connected to a driving module for driving them to approach or move away from each other; and further comprises an ultrasonic water washing module and a scraping module; the scraping assembly of the invention scrapes along the filter press plate frame to completely remove the filter material, and can effectively prevent some residual materials from adhering to the concave cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of fly ash treatment, and in particular to an intelligent ultrasonic water washing system for fly ash resource utilization. Background Art

[0002] Fly ash is tiny ash particles emitted during fuel combustion. Its particle size generally ranges from 1 to 100 μm. Also known as fly ash or soot, it is a fine solid particulate matter found in the flue gas ash produced by fuel combustion. Fly ash contains high concentrations of chlorine, heavy metals, and dioxins, making it a hazardous waste. Because its chemical composition is similar to that of building materials, the current method for harmless and resource-based treatment of fly ash is primarily water washing. This involves removing dioxins from the collected fly ash and then washing it with water to remove chloride salts and heavy metals, reducing the mass percentage of chloride ions in the ash to below 1%, thus meeting the concentration requirements of the relevant raw materials.

[0003] In the prior art, the raw ash and aqueous solution are usually pulped and then fed into a plate-and-frame filter press for solid-liquid separation. During this process, the material is ultrasonically washed multiple times until the salt concentration of the discharged washing liquid meets the standard. Finally, the filter plates and frames are separated by a plate puller, and the remaining solid material is discharged.

[0004] However, in actual application, since each filter press plate frame is provided with a filter trough or concave cavity, when the solid material is discharged, the material is easily attached to the filter trough or concave cavity. The currently used scraper cannot be embedded in the filter trough or concave cavity to scrape the material, so the material removal effect is poor. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent ultrasonic water washing system for fly ash resource utilization to solve the following technical problems:

[0006] Since each filter press plate frame is provided with a filter trough or concave cavity, the material is easily attached to the filter trough or concave cavity when discharging the solid material. The currently used scraper cannot be embedded in the filter trough or concave cavity to scrape the material, so the material removal effect is poor.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] An intelligent ultrasonic water washing system for fly ash resource recovery comprises two sets of symmetrically arranged racks, with a thrust plate and a compression plate arranged between the two sets of racks. The thrust plate is fixed to one rack, and a compression module is provided on the other rack for driving the compression plate toward or away from the thrust plate.

[0009] Among them, several groups of filter press plate frames are arranged between the thrust plate and the pressure plate, and the first pressure plate and the second pressure plate are symmetrically slidably arranged in the filter press plate frame. The first pressure plate and the second pressure plate are embedded in the filter press plate frame to form a concave cavity. The first pressure plate and the second pressure plate are connected to a driving module that drives them to move closer or farther away from each other;

[0010] It also includes an ultrasonic water washing module and a scraping module. The ultrasonic water washing module is used to perform ultrasonic water washing on the fly ash material; the scraping module is used to remove the filter cakes attached to the first pressing plate and the second pressing plate.

[0011] Preferably, the pressing module includes a driving cylinder fixedly arranged on the frame, and a driving end of the driving cylinder is fixed to the pressing plate.

[0012] Preferably, two groups of bearing rods are symmetrically fixed between the two groups of frames, both ends of the pressing plate are slidably connected to the bearing rods, and ears are symmetrically fixed on both sides of each filter press plate frame, and the ears are slidably arranged on the bearing rods;

[0013] It also includes a separation module, which is used to drive the compressed filter press plates and frames to separate from each other.

[0014] Preferably, a first cylinder is fixedly arranged on the side of the first pressing plate facing the second pressing plate, and a second cylinder is fixedly arranged on the side of the second pressing plate facing the first pressing plate and plugged into the first cylinder, and the outer wall of the second cylinder is slidably fitted with the interior of the first cylinder;

[0015] Wherein, the diameter of the second cylinder is equal to the inner diameter of the feed port.

[0016] Preferably, the driving module includes air holes opened on the filter press plate frame, the first pressing plate and the second pressing plate enclose an air cavity, the air holes are connected to the air cavity, and the air holes are connected to the external air pressure pump through the air pipe.

[0017] Preferably, two sets of limiting plates are symmetrically arranged in each filter press plate frame, the limiting plates are fixed to the filter press plate frame through limiting rods, and the first pressing plate and the second pressing plate are symmetrically arranged on both sides of the limiting plate;

[0018] Among them, a plurality of groups of telescopic springs are symmetrically fixedly arranged on both sides of the limit rod, and the other ends of the telescopic springs are respectively fixed to the first pressing plate and the second pressing plate.

[0019] Preferably, the ultrasonic water washing module includes a diversion water inlet opened above the side walls of the concave cavity on both sides, a main water inlet for communicating with the diversion water inlets on both sides is opened on the outer wall of the filter press frame, the main water inlet is connected to the water washing centrifugal pump for conveying washing liquid through a pipeline, and also includes a diversion water outlet opened below the side walls of the concave cavity on both sides, a main water outlet for communicating with the diversion water outlet on both sides is opened on the outer wall of the filter press frame, and the main water outlet is connected to the washing liquid storage tank through a pipeline.

[0020] Preferably, the separation module comprises a separation seat symmetrically arranged between the two sets of frames, and the separation seat is connected to a moving part that drives it to move back and forth linearly between the two sets of frames;

[0021] Wherein, an elastic buckle is provided on the separation seat, and when the elastic buckle moves along the length direction of the bearing rod, the filter press plate frame is separated by a one-way snap connection with the ear seat.

[0022] Preferably, the scraping module comprises symmetrically arranged scrapers, with inclined guide surfaces provided at the bottom of the two groups of scrapers, and drive seats symmetrically fixedly arranged on the scrapers, the drive seats being slidably sleeved on the positioning rods, the positioning rods on both sides being respectively fixed to the drive frame, and the drive frame being connected to the lifting part that drives the lifting thereof;

[0023] Wherein, a reset spring is provided on the positioning rod.

[0024] Preferably, the lifting part includes a support rod fixed to one side of the separation seat, and positioning plates are fixedly arranged on the top ends of the support rods on both sides;

[0025] Among them, a lifting cylinder is fixedly arranged on one side of the positioning plate, the driving end of the lifting cylinder is fixed to the positioning frame, and driving rods are symmetrically fixed on both sides of the positioning frame, and the bottom end of the driving rod is fixed to the driving frame.

[0026] Beneficial effects of the present invention:

[0027] (1) The present invention transports the mixed fly ash slurry to the space between each group of filter press plates through a feed pipe and a feed port, performs preliminary solid-liquid separation under pressure, reduces the water content of the material, and then simultaneously reduces the salt content of the material; then, the material in each filter press plate is subjected to multi-stage ultrasonic water washing treatment by an ultrasonic water washing module until the salt concentration of the discharged cleaning liquid reaches the target value, and then the ultrasonic water washing treatment is stopped, thereby promoting the full dissolution of chloride salts, heavy metals, etc. that are difficult to dissolve in the fly ash particles;

[0028] (2) The present invention drives the first pressing plate and the second pressing plate to move away from each other in the opposite directions through the driving module, so as to further squeeze the material in the concave cavity and form a filter cake. Finally, the pressing module drives the pressing plate to reset, and synchronously drives the filter press frames to separate from each other. The filter cakes in the two adjacent filter press frames can fall under the action of gravity. For the filter cakes partially attached to the surfaces of the first pressing plate and the second pressing plate, the present invention drives the first pressing plate and the second pressing plate to move away from each other in the opposite directions through the driving module, so that the first pressing plate and the second pressing plate move to be flush with the surface of the filter press frame. Finally, the scraping assembly is used to scrape the material along the filter press frame to remove all the filter material, thereby effectively preventing some residual material from being attached to the concave cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 This is a structural diagram of an intelligent ultrasonic water washing system for fly ash resource utilization according to the present invention;

[0031] Figure 2 This is a structural schematic diagram of a compression plate in an intelligent ultrasonic water washing system for fly ash resource utilization according to the present invention;

[0032] Figure 3 This is a structural diagram of an ear seat in an intelligent ultrasonic water washing system for fly ash resource utilization according to the present invention;

[0033] Figure 4 This is a schematic structural diagram of an ultrasonic generator in an intelligent ultrasonic water washing system for fly ash resource utilization according to the present invention;

[0034] Figure 5 This is a structural schematic diagram of a pressure plate in an intelligent ultrasonic water washing system for fly ash resource utilization according to the present invention;

[0035] Figure 6 It is a structural schematic diagram of a separation seat in an intelligent ultrasonic water washing system for fly ash resource utilization according to the present invention.

[0036] Figure: 1, frame; 2, filter press plate frame; 3, moving part; 4, positioning plate; 5, separation seat; 101, driving cylinder; 102, pressing plate; 103, thrust plate; 104, filtrate pipe; 105, feed pipe; 106, collecting box; 201, ear seat; 202, feed port; 203, filtrate hole; 204, concave cavity; 205, first pressing plate; 206, generating probe; 207, ultrasonic generator; 208, main water inlet; 209, main water outlet; 210, air hole; 2 11. Diverter inlet; 212. Diverter outlet; 213. Second pressure plate; 214. First cylinder; 215. Second cylinder; 216. Limit plate; 217. Limit rod; 218. Telescopic spring; 301. Bearing rod; 401. Lifting cylinder; 402. Positioning frame; 403. Drive rod; 404. Drive frame; 405. Positioning rod; 406. Return spring; 407. Scraper; 408. Inclined guide surface; 409. Support rod; 410. Drive seat; 501. Elastic buckle. DETAILED DESCRIPTION

[0037] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] Example 1

[0039] See also Figure 1 As shown, the present invention is an intelligent ultrasonic water washing system for fly ash resource utilization, comprising two sets of symmetrically arranged racks 1, with a thrust plate 103 and a compression plate 102 arranged parallel to each other between the two sets of racks 1, and the thrust plate 103 is fixed to one side of the rack 1; in one embodiment of this embodiment, a feed pipe 105 is provided on one side of the thrust plate 103, the feed pipe 105 is fixed to the rack 1, and the other end of the feed pipe 105 is connected to a feed pump for conveying a mixed slurry of fly ash and water;

[0040] It should be noted that before ultrasonic water washing of fly ash, the raw ash is transported to a pulping tank and fully mixed with the washing liquid to obtain a slurry, so that the fly ash particles are fully dissolved; specifically, the raw ash can be transported to a weighing bin by a vacuum feeding pump, and then transported to a quenching pulping tank by a screw conveyor to fully mix the fly ash and the washing liquid, and the mixing ratio can be 1:3; the cleaning liquid selected in this step can be a primary filtrate or clean water.

[0041] A pressing module is provided on the other side frame 1 to drive the pressing plate 102 toward or away from the thrust plate 103;

[0042] See also Figure 1 and Figure 3-Figure 5 , a plurality of groups of filter press plate frames 2 are arranged in an array between the thrust plate 103 and the pressing plate 102, and a first pressing plate 205 and a second pressing plate 213 are symmetrically slidably arranged in the filter press plate frame 2, and the first pressing plate 205 and the second pressing plate 213 are embedded in the filter press plate frame 2 and form a concave cavity 204, and a feed port 202 for communicating with the feed pipe 105 is opened at the central end of the first pressing plate 205 and the second pressing plate 213, wherein the first pressing plate 205 and the second pressing plate 213 are connected to a driving module that drives them to move closer to each other or away from each other;

[0043] It also includes an ultrasonic water washing module and a scraping module. The ultrasonic water washing module is used to perform ultrasonic water washing on the fly ash material; the scraping module is used to remove the filter cake attached to the first pressing plate 205 and the second pressing plate 213.

[0044] In addition, filtrate tubes 104 are provided at the four corners of the thrust plate 103, and filtrate holes 203 for communicating with the filtrate tubes 104 are correspondingly opened at the four corners of the filter press frame 2 to discharge the separated filtrate into the primary filtrate tank to achieve the effect of solid-liquid separation. This is the existing technology and will not be elaborated in this embodiment.

[0045] It can be explained that, in this embodiment, the pressing module first drives the pressing plate 102 toward the thrust plate 103 to press each filter press plate frame 2, so that the filtrate hole 203 on each filter press plate frame 2 corresponds to the filtrate tube 104 on the thrust plate 103, and then the mixed fly ash slurry is transported between each group of filter press plate frames 2 through the feed pipe 105 and the feed port 202, and preliminary solid-liquid separation is performed under pressure to reduce the water content of the material, thereby simultaneously reducing the salt content of the material; then the ultrasonic water washing module is used to perform multi-stage ultrasonic water washing on the material in each filter press plate frame 2 until the salt concentration of the discharged cleaning liquid reaches the target value and the ultrasonic water washing is stopped, and the first pressing plate 205 and the second pressing plate 205 are driven by the driving module. The pressing plate 213 moves away from the back to further squeeze the material in the concave cavity 204 and form a filter cake. Finally, the pressing module drives the pressing plate 102 to reset and synchronously drives the filter press plate frames 2 to separate from each other. The filter cakes in the two groups of adjacent filter press plate frames 2 can fall under the action of gravity. For the filter cake partially attached to the surfaces of the first pressing plate 205 and the second pressing plate 213, this embodiment drives the first pressing plate 205 and the second pressing plate 213 away from the back through the driving module, so that the first pressing plate 205 and the second pressing plate 213 move to be flush with the surface of the filter press plate frame 2. Finally, the scraping assembly can be used to scrape the material along the filter press plate frame 2 to remove all the filter material, thereby effectively preventing some residual material from adhering to the concave cavity 204.

[0046] In this embodiment, a collecting box 106 is provided at the bottom of the two side frames 1 for collecting the scraped filter cake.

[0047] Example 2

[0048] Based on Example 1, please refer to Figure 1 The clamping module includes a driving cylinder 101 fixedly arranged on the frame 1, and the driving end of the driving cylinder 101 is fixed to the clamping plate 102; specifically, in this embodiment, the clamping plate 102 can be driven to move toward or away from the thrust plate 103 by starting the driving cylinder 101.

[0049] In this embodiment, please refer to Figure 1-Figure 3 , two groups of bearing rods 301 are symmetrically fixed between the two groups of frames 1, and both ends of the pressing plate 102 are slidably connected to the bearing rods 301. Ear seats 201 are symmetrically fixed on both sides of each filter press plate frame 2, and the ear seats 201 are slidably arranged on the bearing rods 301. Among them, a separation module is also included, which is used to drive the filter press plate frames 2 to separate from each other after being pressed; it can be explained that the pressing plate 102 and each filter press plate frame 2 can slide along the bearing rods 301, which can achieve a guiding effect on the one hand and improve the stability of the movement of the two on the other hand;

[0050] When the filtration is completed, the filter press plates 2 are driven to separate from each other along the bearing rods 301 by the separation module so as to discharge the filter cake.

[0051] As a further solution of this embodiment, please refer to Figure 5 The first cylinder 214 is fixedly arranged on one side of the first pressure plate 205 facing the second pressure plate 213, and the second cylinder 215 which is plugged into the first cylinder 214 is fixedly arranged on the side of the second pressure plate 213 facing the first pressure plate 205. The outer wall of the second cylinder 215 slides and fits with the inside of the first cylinder 214, wherein the diameter of the second cylinder 215 is equal to the inner diameter of the feed port 202; it can be explained that when the driving module drives the first pressure plate 205 and the second pressure plate 213 to move, the first cylinder 214 and the second cylinder 215 are always in a fitted and connected state, and the material can always be transported along the feed port 202, avoiding the material from seeping into the position between the first pressure plate 205 and the second pressure plate 213.

[0052] See also Figure 4 The driving module includes an air hole 210 opened on the filter plate frame 2, and the first pressure plate 205 and the second pressure plate 213 are enclosed to form an air cavity. The air hole 210 is connected to the air cavity, and the air hole 210 is connected to the external air pressure pump through the air pipe. It should be noted that when the first pressure plate 205 and the second pressure plate 213 are driven to move away from each other, the external air pressure pump supplies air to the air cavity through the air pipe to increase the air pressure in the air cavity, thereby driving the first pressure plate 205 and the second pressure plate 213 to move away from each other.

[0053] For further information, see Figure 5 , two groups of limit plates 216 are symmetrically arranged in each filter press plate frame 2, and the limit plates 216 are fixed to the filter press plate frame 2 by limit rods 217, and the first pressure plate 205 and the second pressure plate 213 are symmetrically arranged on both sides of the limit plate 216, wherein several groups of telescopic springs 218 are symmetrically fixed on both sides of the limit rod 217, and the other ends of the telescopic springs 218 are respectively fixed to the first pressure plate 205 and the second pressure plate 213; specifically, in the initial state, the side close to the first pressure plate 205 and the second pressure plate 213 are both in contact with the two ends of the limit plate 216, and when the first pressure plate 205 and the second pressure plate 213 are driven to move away from each other, the telescopic springs 218 can be synchronously driven to stretch and generate elastic force. Therefore, when the outer air pressure pump draws out the gas in the air cavity, the first pressure plate 205 and the second pressure plate 213 can be driven to reset synchronously under the elastic force of the telescopic springs 218.

[0054] See also Figure 2-Figure 4The ultrasonic water washing module includes a diversion water inlet 211 opened above the side walls of the concave cavity 204 on both sides, a main water inlet 208 for communicating with the diversion water inlets 211 on both sides is opened on the outer wall of the filter press plate frame 2, and the main water inlet 208 is connected to the water washing centrifugal pump for conveying washing liquid through a pipeline, and also includes a diversion water outlet 212 opened below the side walls of the concave cavity 204 on both sides, a main water outlet 209 for communicating with the diversion water outlet 212 on both sides is opened on the outer wall of the filter press plate frame 2, and the main water outlet 209 is connected to the washing liquid storage tank through a pipeline. Storage box connection; specifically, electric control valves are set between the main water inlet 208 and the main water outlet 209. In the initial state, each valve is in a closed state. When the material is ultrasonically washed with water, the electric control valves are opened, and the water washing centrifugal pump conveys washing liquid to the main water inlet 208 through the pipeline. The washing liquid enters the concave cavity 204 through the diverter outlet 212 to wash the fly ash material. The washed liquid can be discharged to the washing liquid storage tank through the diverter outlet 212, the main water outlet 209 and the pipeline for subsequent recycling.

[0055] The ultrasonic water washing module also includes an ultrasonic generator 207 fixedly arranged on the outer wall of the filter press frame 2, and the ultrasonic generator 207 is electrically connected to several groups of generating probes 206 arranged on the side wall of the concave cavity 204; it can be explained that in the process of washing the fly ash material with water, by setting the ultrasonic generator 207 and the generating probe 206, the mixing effect and efficiency of the fly ash material and the washing liquid are improved; this embodiment does not limit the specific model of the ultrasonic generator 207, and the MD67-KMD-K1 model can be used.

[0056] In addition, it should be noted that the ultrasonic water washing module includes a primary ultrasonic water washing process and a secondary water washing process;

[0057] For the primary ultrasonic water washing process: the washing time of the washing liquid is 0.2-2h, the ultrasonic time of the ultrasonic generator 207 is 0-1.5h, the ultrasonic frequency is 20KHZ-150KHZ, and the frequency changes with time; low-frequency stage: set the ultrasonic frequency to 20KHZ-25KHZ and the ultrasonic time to 0-0.25h; high-frequency stage: set the ultrasonic frequency to 100KHZ-150KHZ and the ultrasonic time to 0.25-0.5h; the low-frequency stage and the high-frequency stage work alternately; then the ultrasonic frequency time is gradually extended, and the ultrasonic control system is intelligently linked with the parameters of the chloride ion concentration, conductivity, pH value, and hardness of the cleaning liquid discharged from the outlet. After the data stabilizes, the ultrasonic generator 207 is stopped, the liquid intake is stopped, and the secondary water washing is started;

[0058] For the secondary ultrasonic washing process: the washing time is 0.2-2h; at the same time, the ultrasonic generator 207 is turned on, the ultrasonic time is set to 0-1.5h, the ultrasonic frequency is 20kHz + 100-150kHz, and the low frequency and high frequency are set to work simultaneously; until the salt concentration of the discharged washing liquid meets the standard. At this time, the washing of the fly ash reaches the target value, and the salt concentration in the fly ash is effectively reduced.

[0059] See also Figure 1 、 Figure 3 as well as Figure 6 The separation module includes a separation seat 5 symmetrically arranged between the two sets of frames 1, and the separation seat 5 is connected to the moving part 3 that drives it to move back and forth linearly between the two sets of frames 1, wherein the separation seat 5 is provided with an elastic snap 501, and when the elastic snap 501 moves along the length direction of the bearing rod 301, it realizes the separation action of the filter press plate frame 2 through the one-way snap connection with the ear seat 201; specifically, through the above technical solution, the elastic snap 501 of the prior art is used to realize the automatic separation effect of the filter press plate frame 2;

[0060] In addition, the moving part 3 of this embodiment can adopt a screw and nut transmission mechanism or a synchronous belt transmission mechanism to drive the separation seat 5 to reciprocate along the bearing rod 301.

[0061] See also Figure 2 The scraping module includes symmetrically arranged scrapers 407, and inclined guide surfaces 408 are set at the bottom of the two groups of scrapers 407. Drive seats 410 are symmetrically fixed on the scrapers 407. The drive seats 410 are slidably sleeved on the positioning rods 405. The positioning rods 405 on both sides are respectively fixed to the drive frame 404, and the drive frame 404 is connected to the lifting part that drives it to rise and fall. Among them, a reset spring 406 is provided on the positioning rod 405; specifically, one end of the reset spring 406 is fixed to the drive frame 404, and the other end is fixed to the drive seat 410. In the initial state, the two groups of scrapers 40 The spacing between 7 is smaller than the thickness of the filter press plate frame 2. It can be explained that when the filter press plate frame 2 moves between the two sets of scrapers 407, the scrapers 407 are driven to move toward the bottom by the lifting part, and the inclined guide surfaces 408 of the scrapers 407 on both sides first abut against the top side of the filter press plate frame 2. As the scrapers 407 continue to move downward, the scrapers 407 move away from their backs, the reset spring 406 contracts and drives the scrapers 407 to abut against the filter press plate frame 2 and the pressure plate through elastic force. As the scrapers 407 move to the bottom of the filter press plate frame 2, the fly ash material attached to the surface of the pressure plate can be effectively scraped off.

[0062] See also Figure 2The lifting part includes a support rod 409 fixed to one side of the separation seat 5, and the positioning plates 4 are fixed on the top of the support rods 409 on both sides, wherein a lifting cylinder 401 is fixed on one side of the positioning plate 4, and the driving end of the lifting cylinder 401 is fixed to the positioning frame 402, and the driving rods 403 are symmetrically fixed on both sides of the positioning frame 402, and the bottom end of the driving rod 403 is fixed to the driving frame 404; specifically, in this embodiment, when scraping, the lifting cylinder 401 is started, and the driving end of the lifting cylinder 401 can drive the driving frame 404 to rise and fall through the driving rod 403 in the process of driving the positioning frame 402 to rise and fall, thereby adjusting the lifting and falling of the scraper 407.

[0063] In addition, it should be noted that the separation seat 5 can synchronously drive the positioning plate 4 to move through the support rod 409 during the movement, and then when separating each filter press plate frame 2, the scrapers 407 on both sides are just on both sides of the filter press plate frame 2, and there is no need to use other servo drive equipment for adjustment, which has higher stability.

[0064] A working method of an intelligent ultrasonic water washing system for fly ash resource utilization comprises the following steps:

[0065] The raw ash is transported to a slurry tank and fully mixed with water washing liquid to obtain a slurry, so that the fly ash particles are fully dissolved;

[0066] See also Figure 1 and Figure 2 , the pressing module drives the pressing plate 102 to move closer to the thrust plate 103 to press each filter press plate frame 2;

[0067] The feed pipe 105 and the feed port 202 transport the mixed fly ash slurry to the space between each set of filter press plates 2, where preliminary solid-liquid separation is performed under pressure, and the filtrate is passed into the primary filtrate tank;

[0068] The ultrasonic water washing module performs primary ultrasonic water washing and secondary water washing on the material until the salt concentration of the discharged washing liquid meets the standard;

[0069] See also Figure 2-Figure 5 , the driving module drives the first pressing plate 205 and the second pressing plate 213 to move away from each other, so as to further squeeze the material in the concave cavity 204 and form a filter cake;

[0070] The pressing module drives the pressing plate 102 to reset, and synchronously drives the filter press plates 2 to separate from each other, so that the filter cakes in the two adjacent filter press plates 2 can fall under the action of gravity;

[0071] The driving module drives the first pressing plate 205 and the second pressing plate 213 to move away from each other so that the first pressing plate 205 and the second pressing plate 213 move to be flush with the surface of the filter press plate frame 2, and the scraping assembly scrapes the pressing plates along the filter press plate frame 2.

[0072] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as limiting the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0073] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0074] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An intelligent ultrasonic water washing system for fly ash resource utilization, comprising two sets of symmetrically arranged racks (1), a thrust plate (103) and a pressing plate (102) being arranged between the two sets of the racks (1), the thrust plate (103) being fixed to one side of the racks (1), It is characterized in that A pressing module is provided on the frame (1) on the other side, for driving the pressing plate (102) to move closer to or farther away from the thrust plate (103); A plurality of filter press plate frames (2) are arranged between the thrust plate (103) and the pressing plate (102); a first pressing plate (205) and a second pressing plate (213) are symmetrically arranged in a sliding manner in the filter press plate frame (2); the first pressing plate (205) and the second pressing plate (213) are embedded in the filter press plate frame (2) to form a concave cavity (204); and the first pressing plate (205) and the second pressing plate (213) are connected to a driving module that drives them to move toward each other or away from each other; It also includes an ultrasonic water washing module and a scraping module, wherein the ultrasonic water washing module is used to perform ultrasonic water washing on the fly ash material; the scraping module is used to remove filter cakes attached to the first pressing plate (205) and the second pressing plate (213); Two groups of bearing rods (301) are symmetrically fixedly arranged between the two groups of the frames (1), two ends of the pressing plate (102) are slidably connected to the bearing rods (301), and ear seats (201) are symmetrically fixedly arranged on both sides of each filter press plate frame (2), and the ear seats (201) are slidably arranged on the bearing rods (301); It also includes a separation module, which is used to drive the filter press plate frames (2) to separate from each other after being pressed; The separation module comprises a separation seat (5) symmetrically arranged between the two sets of frames (1), and the separation seat (5) is connected to a moving part (3) that drives it to reciprocate linearly between the two sets of frames (1); The separation seat (5) is provided with an elastic buckle (501), and when the elastic buckle (501) moves along the length direction of the bearing rod (301), it realizes the separation action of the filter press plate frame (2) through one-way clamping with the ear seat (201); The scraper module comprises symmetrically arranged scrapers (407), two groups of scrapers (407) are provided with inclined guide surfaces (408) at the bottom, and drive seats (410) are symmetrically fixedly arranged on the scrapers (407). The drive seats (410) are slidably sleeved on the positioning rods (405), and the positioning rods (405) on both sides are respectively fixed to the drive frame (404), and the drive frame (404) is connected to a lifting part that drives the lifting of the drive frame (404); Wherein, the positioning rod (405) is provided with a return spring (406); A first cylinder (214) is fixedly arranged on one side of the first pressing plate (205) facing the second pressing plate (213); a second cylinder (215) plugged into the first cylinder (214) is fixedly arranged on one side of the second pressing plate (213) facing the first pressing plate (205); an outer wall of the second cylinder (215) is slidably fitted with the interior of the first cylinder (214); Wherein, the diameter of the second cylinder (215) is equal to the inner diameter of the feed port (202); The driving module comprises an air hole (210) formed on the filter plate frame (2); the first pressing plate (205) and the second pressing plate (213) enclose an air cavity, the air hole (210) is connected to the air cavity, and the air hole (210) is connected to an external air pressure pump through an air pipe; Two groups of limit plates (216) are symmetrically arranged in each of the filter press plate frames (2); the limit plates (216) are fixed to the filter press plate frames (2) via limit rods (217); and the first pressing plate (205) and the second pressing plate (213) are symmetrically arranged on both sides of the limit plates (216); Wherein, a plurality of groups of telescopic springs (218) are symmetrically fixedly arranged on both sides of the limit rod (217), and the other ends of the telescopic springs (218) are respectively fixed to the first pressing plate (205) and the second pressing plate (213).

2. According to claim 1, an intelligent ultrasonic washing system for fly ash resource utilization, It is characterized in that The pressing module comprises a driving cylinder (101) fixedly arranged on the frame (1), and a driving end of the driving cylinder (101) is fixed to a pressing plate (102).

3. According to claim 1, an intelligent ultrasonic washing system for fly ash resource utilization, It is characterized in that The ultrasonic water washing module comprises a shunt water inlet (211) provided above the side walls of the concave cavities (204) on both sides; a main water inlet (208) for communicating with the shunt water inlets (211) on both sides is provided on the outer wall of the filter press frame (2); the main water inlet (208) is connected to a water washing centrifugal pump for conveying washing liquid via a pipeline; and further comprises a shunt water outlet (212) provided below the side walls of the concave cavities (204) on both sides; a main water outlet (209) for communicating with the shunt water outlet (212) on both sides is provided on the outer wall of the filter press frame (2); the main water outlet (209) is connected to a washing liquid storage tank via a pipeline.

4. The intelligent ultrasonic water washing system for fly ash resource utilization according to claim 1, It is characterized in that The lifting part comprises a support rod (409) fixed to one side of the separation seat (5), and positioning plates (4) are fixedly arranged at the top ends of the support rods (409) on both sides; A lifting cylinder (401) is fixedly arranged on one side of the positioning plate (4), a driving end of the lifting cylinder (401) is fixed to a positioning frame (402), driving rods (403) are symmetrically fixedly arranged on both sides of the positioning frame (402), and a bottom end of the driving rod (403) is fixed to a driving frame (404).

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