Naphthalene series water reducing agent waste residue treatment device and method

Abstract

The application discloses a naphthalene series water-reducing agent waste residue treatment device and method, and relates to the solid waste recovery technical field.The naphthalene series water-reducing agent waste residue treatment device comprises a crushing module, a dilution module and a recovery disc group.The recovery disc group comprises a mixing rotary disc and a residue filtering rotary disc; and the residue filtering rotary disc is internally provided with a main flow cavity, a shunt channel and a sorting channel from inside to outside.The application does not use a large amount of water to flush and immerse the waste residue, but controls the discharge of the naphthalene series water-reducing agent waste material and the dilution liquid through the crushing module and the dilution module, so as to control the dilution ratio of the waste material in a proper range and reduce the water consumption; and only the rotating speed of the residue filtering rotary disc needs to be changed, so that the solid-liquid separation of the dilution waste material, the discharge of the waste residue and the backwashing operation of the first filter screen can be selectively performed, the working mode can be flexibly and quickly switched, and the waiting time during shutdown is reduced as much as possible.

Description

Technical Field

[0001] This invention relates to the field of solid waste recycling technology, specifically to a device and method for treating naphthalene-based water-reducing agent waste residue. Background Technology

[0002] The production process of naphthalene-based water-reducing agents generates waste materials, including waste residue (mainly composed of calcium sulfate) and naphthalene-based water-reducing agent residue on the surface of the waste residue (which is fluid and sticky due to its moisture content); these are difficult to dry. Landfilling would cause environmental pollution and resource waste.

[0003] Existing technologies such as the Chinese patent "A Waste Residue Treatment Device for Naphthalene-based Water-reducing Agents" (Publication No. CN208033261U) and the Chinese patent "A Waste Residue Treatment Device for the Production of Naphthalene-based Water-reducing Agents" (Publication No. CN209531691U) both adopt the method of first crushing and then separating to recover waste residue. The separation methods used are rinsing / immersion washing (used to dissolve the naphthalene-based water-reducing agent on the surface of the waste residue) and filtration, respectively. Both of them have the problem of excessive water consumption (after excessive dilution, the naphthalene-based water-reducing agent needs to be re-concentrated for easy storage, transportation and utilization). Summary of the Invention

[0004] In order to overcome the problem of "excessive water consumption in the process of treating naphthalene-based water-reducing agent waste residue" in the above-mentioned background technology, the present invention provides a naphthalene-based water-reducing agent waste residue treatment device and method.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A naphthalene-based water-reducing agent waste residue treatment device includes: a crushing module for crushing the waste residue in the naphthalene-based water-reducing agent waste and controlling the flow rate of the naphthalene-based water-reducing agent waste; a dilution module for discharging a quantitative amount of diluent; and a recovery disc assembly for removing the naphthalene-based water-reducing agent from the surface of the waste residue.

[0006] As a further optimization of the present invention, the recovery disc assembly includes a mixing disc and a filter residue disc; the mixing disc is used to mix the naphthalene-based water-reducing agent waste and the diluent to obtain diluted waste; the filter residue disc is used to recover the waste residue in the diluted waste; the filter residue disc is provided with a main flow chamber, a diversion channel, and a sorting channel from the inside to the outside, and the sorting channel includes an uphill channel and a downhill channel; one end of the diversion channel is connected to the outer edge of the main flow chamber, and the other end of the diversion channel is connected to the bottom end of the uphill channel and the downhill channel. The top of the channel is connected in a three-way configuration; a first filter screen is provided at the bottom of the uphill channel; the filter residue swirl can rotate at a first speed, causing the diluted waste to flow to the position of the first filter screen and undergo solid-liquid separation under the action of centrifugal force, wherein the waste liquid penetrates the first filter screen and overcomes its own gravity and is discharged through the top opening of the uphill channel, and the waste residue is blocked by the first filter screen; then the filter residue swirl can rotate at a second speed, causing the waste residue to fall downward and be discharged through the bottom opening of the downhill channel; the first speed is greater than the second speed.

[0007] As a further optimization of the present invention, the end of the diversion channel away from the main flow cavity is provided with an upright elastic lever, and the bottom end of the elastic lever is provided with a counterweight; the elastic lever is located on the side of the first filter screen; when the rotation speed of the filter residue rotating disk changes, it can drive the bottom end of the elastic lever to swing, which is used to stir the waste residue at the position of the first filter screen.

[0008] As a further optimization of the present invention, the sorting channel is C-shaped with its opening facing away from the main flow cavity; the top of the first filter screen is inclined outward to form an outward convex space to accommodate the waste residue.

[0009] As a further optimization of the present invention, the mixing disc is disposed within the main flow chamber and coaxially arranged with the filter residue disc; the mixing disc is provided with a central cavity and a radial flow channel from the inside to the outside, one end of the radial flow channel is connected to the outer edge of the central cavity, and the other end is connected to the main flow chamber; a first solenoid valve is installed in the radial flow channel, and the first solenoid valve is electrically connected to a disc generator installed between the mixing disc and the filter residue disc; the relative rotational speed of the mixing disc and the filter residue disc can be adjusted to control the opening and closing timing of the first solenoid valve to match the start and end timing of the solid-liquid separation of the diluted waste.

[0010] As a further optimization of the present invention, the mixing disc and the filter residue disc rotate in opposite directions.

[0011] As a further optimization of the present invention, adjusting the relative rotation speed of the filter residue rotating disc and the mixing rotating disc can adjust the magnitude of the current output by the disc generator, which is used to control the opening and closing of the first solenoid valve.

[0012] As a further optimization of the present invention, adjusting the relative rotation speed of the filter residue rotating disc and the mixing rotating disc can adjust the frequency of the current output by the disc generator; the mixing rotating disc is equipped with a current sensor, a computing unit, a battery and a switch. The current sensor is used to collect the actual frequency data of the current output by the disc generator, and the computing unit is used to calculate the relationship between the actual frequency data and the built-in standard frequency data, thereby determining whether to control the opening and closing of the first solenoid valve by the switch.

[0013] As a further optimization of the present invention, it also includes a liquid phase storage chamber and a solid phase storage chamber that can be fitted onto the outer wall of the filter cake swirl plate; the vertical cross-section of the liquid phase storage chamber and the solid phase storage chamber are both U-shaped; the liquid phase storage chamber can be pressed onto the solid phase storage chamber; the height of the outer wall of the liquid phase storage chamber is higher than the inner wall, which is used to prevent splashing of the waste liquid; the height of the outer wall of the solid phase storage chamber is higher than the inner wall, which is used to form a feeding gap and prevent splashing of the waste residue.

[0014] A method for treating naphthalene-based water-reducing agent waste residue involves using a naphthalene-based water-reducing agent waste residue treatment device to recover waste residue from naphthalene-based water-reducing agent waste. The steps include: S1, crushing the waste residue from the naphthalene-based water-reducing agent waste using the crushing module; S2, rotating the mixing disc to mix the naphthalene-based water-reducing agent waste from the crushing module and the diluent from the dilution module to obtain diluted waste; S3, rotating the filter residue disc to separate the waste residue and waste liquid in the diluted waste and discharge them respectively through the top opening of the uphill channel and the bottom opening of the downhill channel.

[0015] In summary, the present invention has at least one of the following advantages: (1) In this invention, instead of using a large amount of water to rinse and soak the waste residue, the discharge of naphthalene-based water-reducing agent waste and diluent is controlled by the crushing module and the dilution module respectively, thereby controlling the dilution ratio within a suitable range, reducing unnecessary water consumption, and avoiding the problem that the waste liquid needs to be re-concentrated to recover the naphthalene-based water-reducing agent (which can reduce unnecessary process steps).

[0016] (2) By simply changing the rotation speed of the filter cake rotating disc, the solid-liquid separation of the diluted waste, the discharge of the waste residue, and the backwashing of the first filter screen can be selectively performed. This solution can flexibly and quickly switch working modes, reduce downtime, and solve the problem that centrifugal equipment is difficult to backwash in traditional technology.

[0017] (3) The recycling tray group can discharge waste residue and waste liquid from different height positions, and then put them into the vertically stacked liquid phase storage chamber and solid phase storage chamber respectively, which facilitates separate storage.

[0018] (4) The waste residue is supported by the second filter screen at a height in the middle of the solid phase storage chamber. The diluent discharged from the backwash can flow through the waste residue (and penetrate) the second filter screen to achieve secondary cleaning of the waste residue, further reducing the amount of naphthalene-based water-reducing agent remaining on its surface and increasing the calcium sulfate content ratio. The diluent accumulated at the bottom of the solid phase storage chamber also contains extractable naphthalene-based water-reducing agent, which facilitates material recovery.

[0019] (5) The relative rotation speed of the filter residue rotary disc and the mixing rotary disc is used to control the opening and closing of the first solenoid valve; the absolute rotation speed of the filter residue rotary disc is used to control the flow direction of the dilution waste (and diluent); therefore, the timing and flow direction of the dilution waste (and diluent) flowing into the diversion channel can be controlled separately, and the two can be adapted to each other to avoid interference between different batches of dilution waste and ensure the reliability of the sorting effect.

[0020] (6) The scheme of controlling the opening and closing of the first solenoid valve by relative rotational speed is highly flexible. When the absolute rotational speed of the mixing disc is inconvenient to adjust due to carrying certain functions, the absolute rotational speed of the mixing disc can be adjusted to open and close the first solenoid valve. When the absolute rotational speed of the filter cake disc is inconvenient to adjust due to carrying certain functions, the absolute rotational speed of the mixing disc can be adjusted to open and close the first solenoid valve. This scheme can cleverly adapt to the fluid discharge requirements during solid-liquid separation and backwashing, and has the technical effect of convenient control.

[0021] (7) The top of the first filter screen is inclined outward to form an outward convex space. The outward convex space is used to increase the single-time capacity (specifically, volume) of the waste residue at the position of the first filter screen, thereby increasing the amount of naphthalene-based water-reducing agent waste that can be processed in a single batch by the present invention, and maximizing the processing efficiency.

[0022] (8) When the filter residue swivel rotates at a variable speed, the bottom end of the elastic lever can swing, thereby causing the waste residue in the convex space to slide and move against each other, thereby reducing the amount of waste liquid remaining on the surface of the waste residue during solid-liquid separation.

[0023] (9) The relative rotation between the mixing disc and the filter disc can be transmitted to the disc generator, thereby generating a monitorable current (the magnitude and frequency of the current can be monitored in real time) which is used as a signal for opening and closing the first solenoid valve, thereby realizing the control of the first solenoid valve and simplifying the structure of the present invention as much as possible.

[0024] (10) Compared with the traditional method of installing a screw conveyor in a horizontal screen cylinder, the present invention can more accurately control the centrifugation time (i.e. the solid-liquid separation time) and reduce the amount of waste liquid remaining on the surface of the waste residue. Attached Figure Description

[0025] The present application will be further explained below with reference to the accompanying drawings: Figure 1 This is a front view of the overall structure of the present invention. Figure 2 This is a front view diagram of the vertical section of the filter cake swirl disc structure; Figure 3 This is a semi-sectional top view of the filter cake swirl disc structure; Figure 4 This is a schematic diagram of the position of the elastic lever and the front view of the structural section. Figure 5 This is a semi-sectional top view of the liquid phase storage chamber and the solid phase storage chamber. Figure 6 A front view of the vertical section of the mixing disc and filter disc structure; Figure 7 This is a front view of the vertical section of the first and second drive shafts. Figure 8 A top-view cross-section of the mixing disc and the filter disc structure; Figure 9 This is a front view of the vertical section of the first solenoid valve structure. Figure 10 A top view of two liquid phase storage chambers interlocked together; Figure 11 A top view of two solid phase storage chambers interlocked together. Figure 12 Line graph showing the relationship between processing time and the absolute rotational speed of the filter cake swirl (I); Figure 13 Line graph showing the relationship between processing time and the absolute rotational speed of the filter cake swirl (II); Figure 14 This is a top view diagram showing the position and structure of the first and second convex ribs; Figure 15 This is a side view of the first and second convex rib structures in an elevation section. Figure 16 Line graph showing the relationship between processing time and the absolute and relative rotational speeds of the filter cake swirl disc (I); Figure 17 Line graph showing the relationship between processing time and the absolute and relative rotational speeds of the filter cake swirl disc (II).

[0026] Explanation of reference numerals in the attached figures: In the picture, 1. Crushing module; 10. Upper floor slab; 11. First housing; 111. Hopper; 12. Crushing roller; 13. Upper lifting rod; 14. Lower lifting frame; 15. Injection pipe; 151. First valve body; 2. Dilution module; 21. Water injection pipe; 211. Second valve body; 3. Recycling disc assembly; 31. Mixing disc; 311. Central cavity; 3111. Second fin; 312. Radiation channel; 313. First solenoid valve; 3131. Separator cylinder; 3132. Outer coil; 3133. Moving iron core; 3134. Fixed iron core; 3135. Return spring; 3136. Separator plate; 3137. Valve core; 314. Upper rotor; 315. Lower rotor; 316. 317. First rib; 32. Second rib; 32. Filter cake swirl plate; 321. Main flow chamber; 3211. First fin; 322. Diversion channel; 323. Sorting channel; 3231. Uphill channel; 3232. Downhill channel; 324. First filter screen; 325. Elastic lever; 33. First drive shaft; 331. First gear; 34. Second drive shaft; 341. Second gear; 35. Reinforcing bushing; 4. Liquid phase storage chamber; 5. Solid phase storage bin; 51. Feed gap; 52. Limiting ring plate; 53. Second filter screen; 6. Base; 60. Lower floor slab; 61. Step structure; 62. First motor; 63. First accelerator; 64. Second motor; 65. Second accelerator; 7. Waste residue. Detailed Implementation

[0027] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows: Reference Figures 1-2 This embodiment provides a naphthalene-based water-reducing agent waste residue treatment device, including: a crushing module 1, a dilution module 2, a recovery disc assembly 3, a liquid phase storage chamber 4, a solid phase storage chamber 5, and a base 6. The crushing module 1 and dilution module 2 are both erected above the recovery disc assembly 3, facilitating the direct injection of naphthalene-based water-reducing agent waste and diluent into the top-opening central cavity 311 (the injection direction is parallel to the direction of gravity, thus preventing deviation). When the naphthalene-based water-reducing agent waste flows through the crushing module 1, the crushing module 1 crushes the waste residue 7 within the naphthalene-based water-reducing agent waste and controls the flow rate of the naphthalene-based water-reducing agent waste (per unit time). The dilution module 2 can discharge diluent and control the amount of diluent injected into the recovery disc (i.e., control the dilution ratio of the naphthalene-based water-reducing agent waste). When the naphthalene-based water-reducing agent waste flows through the recovery disc assembly 3, the recovery disc assembly 3 removes the naphthalene-based water-reducing agent from the surface of the waste residue 7, thereby recovering clean waste residue 7. The base 6 is placed on the upper surface of the lower floor slab 60 and below the crushing module 1 and dilution module 2. The recovery tray assembly 3 is positioned above the base 6 and below the crushing module 1 and dilution module 2. The liquid phase storage chamber 4 and the solid phase storage chamber 5 are located above the base 6 and fitted around the outer periphery of the recovery tray assembly 3 for (temporary) storage of the screened waste residue 7 and waste liquid. Both the upper floor slab 10 and the lower floor slab 60 are floor slabs within a building (e.g., a workshop), stably supported by structural elements such as beams, walls, and columns.

[0028] Reference Figure 1 The crushing module 1 includes a first housing 11, crushing rollers 12, an upper lifting rod 13, and a lower lifting frame 14. The crushing rollers 12 are arranged in pairs inside the first housing 11, and the two crushing rollers 12 in a pair rotate in opposite directions (each crushing roller 12 is equipped with a transmission gear at its end, and the two corresponding transmission gears of the two crushing rollers 12 in a pair are adapted to mesh, and one of the transmission gears is adapted to mesh with the drive gear. The drive gear is installed on the output shaft of the reducer, and the input shaft of the reducer is connected to the output shaft of the drive motor through a spline pair. The drive motor can drive the crushing rollers 12 to rotate, thereby crushing the large pieces of waste residue 7 in the naphthalene-based water-reducing agent waste into small pieces of waste residue 7; the first housing 11 has an installation cavity, and the drive gear, transmission gear, reducer, and drive motor are all installed in the installation cavity). The first housing 11 has a flow channel cavity, and the crushing roller 12 is rotatably installed in the flow channel cavity (e.g., connected by bearings). The flow channel cavity has a top and bottom open structure. A hopper 111 is installed at the top opening of the flow channel cavity (e.g., fixedly connected by bolts and sealing rings). The hopper 111 is inserted into an opening in the upper floor slab 10. The upper surface of the upper floor slab 10 is provided with a screw conveyor or conveyor belt, etc., for feeding naphthalene-based water-reducing agent waste into the flow channel cavity of the crushing module 1 through the hopper 111. The bottom opening of the flow channel cavity is connected to the injection pipe 15. The injection pipe 15 is upright and its bottom opening points towards the mixing disc 31. The top end of the injection pipe 15 is sealed and fixedly connected to the first housing 11 (e.g., welded or connected by bolts and sealing rings). A first valve body 151 is installed in the middle of the injection pipe 15 for controlling the discharge speed of the naphthalene-based water-reducing agent waste (via the injection pipe 15). Several upper suspension rods 13 are provided and respectively located at the outer edge of the top surface of the first housing 11 for evenly suspending the first housing 11. The bottom end of the upper suspension rod 13 is fixedly connected to the first housing 11 (e.g., by bolts) and the top end is fixedly connected to the upper floor slab 10 (e.g., by anchoring). The lower suspension frame 14 is located below the first housing 11, and the two are fixedly connected by bolts. The injection pipe 15 is fixedly connected to the lower suspension frame 14 by pipe clamps and bolts.

[0029] Reference Figure 1The dilution module 2 includes a water injection pipe 21, a water delivery pipe, a water pump, a water extraction pipe, and a water storage tank connected in sequence. The water pump draws the diluent (e.g., water) from the water storage tank through the water extraction pipe, then presses it into the water delivery pipe, and finally injects it into the mixing disc 31 through the water injection pipe 21. The water delivery pipe, for example, is made of rubber hose, which has the advantage of flexible layout; the water injection pipe 21 is made of rigid pipe (e.g., aluminum or stainless steel pipe), which has the advantage of not being easily deformed; the water injection pipe 21 is arranged in an L-shape with its bottom opening pointing towards the mixing disc 31 (the water injection pipe 21 is fixedly connected to the lower hanging frame 14 by pipe clamps and bolts); a second valve body 211 is installed in the middle of the water injection pipe 21. The water pump and / or the second valve body 211 are used to control the water output of the water injection pipe 21, that is, the amount of diluent injected into the mixing disc 31.

[0030] Reference Figure 1 The recovery disc group 3 includes a mixing disc 31 and a filter disc 32 arranged coaxially; both the mixing disc 31 and the filter disc 32 are disc-shaped; the mixing disc 31 is used to mix the naphthalene-based water-reducing agent waste and the diluent to obtain the diluted waste; the filter disc 32 is used to screen the waste residue 7 and waste liquid in the diluted waste; the solid phase storage chamber 5 and the liquid phase storage chamber 4 are used to recover the waste residue 7 and waste liquid in the diluted waste, respectively.

[0031] Reference Figure 1 , Figure 2 and Figure 3The filter cake swirl disc 32 has, from the inside out, a main flow chamber 321, a diversion channel 322, and a sorting channel 323. The filter cake swirl disc 32 has a horizontally oriented disc shape. The main flow chamber 321 is open at the top and located at the center of the top surface of the filter cake swirl disc 32. Several diversion channels 322 are arranged radially (i.e., in a circular array) around the outer periphery of the main flow chamber 321, and several sorting channels 323 are also arranged radially (i.e., in a circular array) around the outer periphery of the main flow chamber 321. The end of the diversion channel 322 closest to the main flow chamber 321 is inclined upwards, and the end closest to the sorting channel 323 is inclined downwards. The number of diversion channels 322 and sorting channels 323 is equal and they correspond one-to-one. The corresponding diversion channels 322 and sorting channels 323 are connected in a Y-shape. The sorting channel 323 is vertically oriented and its opening faces away from the main flow chamber 321 in a C-shape (i.e., the axis of the sorting channel 323 is C-shaped). The sorting channel 323 includes an uphill channel 3231 and a downhill channel 3232 (located below the uphill channel); the bottom opening of the uphill channel 3231 and the top opening of the downhill channel 3232 are connected and tangentially arranged. The axes of the uphill channel 3231 and the downhill channel 3232 are arc-shaped. One end of the diversion channel 322 is connected to the outer edge of the main flow chamber 321, and the other end of the diversion channel 322 is connected to the bottom end of the uphill channel 3231 and the top end of the downhill channel 3232 in a T-junction. The top opening of the uphill channel 3231 is located on the outer wall of the filter cake swirl plate 32, and the bottom opening of the downhill channel 3232 is located on the outer wall of the filter cake swirl plate 32; the height of the top opening of the uphill channel 3231 is higher than the height of the bottom opening of the downhill channel 3232, which is used to adapt to the height positions of the liquid phase storage chamber 4 and the solid phase storage chamber 5.

[0032] Reference Figure 2 and Figure 4 A first filter screen 324 is fixedly installed at the bottom of the uphill channel 3231 (for example, by welding or by bolts and a pressure ring; the first filter screen 324 is made of stainless steel mesh, woven from stainless steel wire); the first filter screen 324 is arranged along the cross-section of the uphill channel 3231 to filter out waste residue 7. The top of the first filter screen 324 is inclined outward to form an outward convex space to accommodate the waste residue 7; that is, during solid-liquid separation, the waste residue 7 can be temporarily stored in the outward convex space under the action of centrifugal force instead of falling downward.

[0033] Reference Figure 2 and Figure 12The uphill channel 3231 extends obliquely upward in a direction away from the main channel 321; the downhill channel 3232 extends obliquely downward in a direction away from the main channel 321. The filter residue swirl disc 32 can rotate at a first speed (at this time, its absolute speed is the first speed, not the relative speed), causing the diluted waste (originally stored in the main flow chamber 321) to flow to the position of the first filter screen 324 and undergo solid-liquid separation under the action of centrifugal force. The waste liquid (mainly composed of naphthalene-based water-reducing agent solution and undissolved naphthalene-based water-reducing agent) penetrates the first filter screen 324 and overcomes its own gravity and is discharged through the top opening of the uphill channel 3231 (flowing through the inner cavity of the uphill channel 3231 in the process). The waste residue 7 (mainly composed of calcium sulfate) is blocked by the first filter screen 324. Then, the filter residue swirl disc 32 can rotate at a second speed (at this time, its absolute speed is the second speed, not the relative speed), causing the waste residue 7 to fall downward and be discharged through the bottom opening of the downhill channel 3232 (flowing through the inner cavity of the downhill channel 3232 in the process). The first rotational speed is greater than the second rotational speed. Therefore, the centrifugal force experienced by the waste residue 7 at the filter screen position when rotating at the first rotational speed (at which point it can overcome its own gravity and be stuck in the convex space) is greater than the centrifugal force experienced when rotating at the second rotational speed (at which point it cannot overcome its own gravity and fall downward from the convex space). The diversion channel 322 and the downhill channel 3232 are connected in a Z-shape and are not separated by the first filter screen 324, so the waste residue 7 can fall downward smoothly.

[0034] Reference Figure 1 and Figure 2 Since the waste residue 7 is pre-crushed into small particles by the crushing module 1 rather than into irregularly shaped blocks, the probability of it getting stuck in the main flow cavity 321, the diversion channel 322 and the sorting channel 323 is reduced, thus improving the reliability of the invention.

[0035] Reference Figure 2 and Figure 13The filter cake swirl plate 32 can first rotate at a third speed (at this time, its absolute speed is the third speed, not the relative speed), and then rotate at a second speed, so that the diluted liquid can pass through the first filter screen 324 from the diversion channel 322 into the uphill channel 3231, and then flow out from the uphill channel 3231 through the first filter screen 324 (in reverse) and through the bottom opening of the downhill channel 3232 (flowing through the downhill channel 3232 in the process), realizing automatic control of (radial) backwashing of the first filter screen 324. Since the first speed > the third speed > the second speed, the centrifugal force is not enough to drive the diluted liquid to be directly discharged through the top opening of the uphill channel 3231 (for example, when it flows to the lower part of the uphill channel 3231, it achieves balance with gravity and stops climbing). Therefore, when the rotation speed drops to the second speed, the diluted liquid can flow downward and achieve backwashing, that is, realize the control of the flow direction of the diluted liquid. The present invention can use the backwashing of the diluent to clean the waste residue 7 adhering to the first filter screen 324, and has a high degree of automation, which can avoid the first filter screen 324 from being blocked and requires less manpower.

[0036] Reference Figure 6 and Figure 13 A second filter screen 53 (e.g., made of aluminum alloy / stainless steel with drainage holes, or woven from stainless steel wire) is installed at the middle height of the solid phase storage chamber 5. Waste slag 7 falls into the solid phase storage chamber 5 and is pressed against the second filter screen 53. The backwashing diluent flows into the solid phase storage chamber 5, penetrates the second filter screen 53, and accumulates at the bottom (of the solid phase storage chamber 5), achieving separation. When the backwashing diluent flows into the solid phase storage chamber 5, it can perform a secondary rinse on the slag located on the second filter screen 53, reducing the amount of naphthalene-based water-reducing agent remaining on the slag surface, improving the recovery rate, and reducing waste. The outer edge of the second filter screen 53 is fixedly connected to the solid phase storage chamber 5 (e.g., by welding or by pressure strips and bolts).

[0037] Reference Figure 12 and Figure 13 The first speed is a constant or a variable value (e.g., it varies between the fourth and fifth speeds; where both the fourth and fifth speeds are constant values).

[0038] Reference Figure 4The diversion channel 322, at its end furthest from the main flow chamber 321, is equipped with a vertically positioned elastic lever 325. The top of the elastic lever 325 is fixedly connected to the filter cake rotating disk 32 (e.g., by bolts), and the bottom is equipped with a counterweight (e.g., by bolts). Both the elastic lever 325 and the counterweight can be made of stainless steel. The elastic lever 325 is located beside the first filter screen 324 (specifically, on the side closer to the main flow chamber 321, and disposed within the protruding space). When the rotational speed of the filter cake rotating disk 32 changes, it can drive the bottom of the elastic lever 325 (and the counterweight) to swing, thereby agitating the waste residue 7 at the location of the first filter screen 324 (specifically, the waste residue 7 within the protruding space; see reference). Figure 13 In this scheme, the first rotation speed is not a constant value but a variable value within a specific range, and the minimum value of the first rotation speed is guaranteed not to cause the filter residue to fall from the convex space; the variable value includes regularly changing values ​​or irregularly changing values), thereby driving the waste residue 7 to slide and move with each other, thereby reducing the amount of waste liquid remaining on the surface of the waste residue 7 during solid-liquid separation.

[0039] Reference Figure 6 and Figure 8 A mixing swirl disk 31 is disposed within the main flow chamber 321 and coaxially arranged with the filter residue swirl disk 32. Inside the mixing swirl disk 31, from the inside out, are a central cavity 311 and radial flow channels 312. The central cavity 311 is open at the top and located at the center of the top surface of the mixing swirl disk 31, used to receive, contain, and mix the downward-discharged naphthalene-based water-reducing agent waste (from crushing module 1) and diluent (from dilution module 2). Several radial flow channels 312 are arranged radially (i.e., in a circumferential array) around the outer periphery of the main flow chamber 321. (Refer to...) Figure 14 and Figure 15The bottom surface of the central cavity 311 (along the radial direction of the mixing disk 31) is fixedly provided with a first protruding rib 316 and a second protruding rib 317 (e.g., by bolts or integral fixing). Several first protruding ribs 316 are arranged in a circular array around the axis of the mixing disk 31, and several second protruding ribs are also arranged in a circular array around the axis of the mixing disk 31. The first and second protruding ribs 316 and 317 are straight or curved, and are staggered. The vertical cross-sections of adjacent first ribs 316 and second ribs 317 are arranged in a figure-eight shape (including upright and inverted figure-eight shapes). When the naphthalene-based water-reducing agent waste and diluent fall vertically into the central cavity 311 of the rotating mixing disk 31, the first ribs 316 and second ribs 317 can cut the naphthalene-based water-reducing agent waste and diluent to mix them. During the process, the mixing disk 31 can rotate in a single direction (including rotation at a constant speed, in which the relative displacement generated by the inertia of the naphthalene-based water-reducing agent waste and diluent at the moment of contact with the first rib 316 / second rib 317 is used to achieve cutting; it also includes rotation at a variable speed, in which cutting can be achieved during the speed change). The mixing disk 31 can also rotate alternately clockwise and counterclockwise. When the direction changes, the first ribs 316 and second ribs 317 can be used to cut the naphthalene-based water-reducing agent waste and diluent to achieve mixing.

[0040] Reference Figure 6 , Figure 7 and Figure 8 One end of the radiation channel 312 is connected to the outer edge of the central cavity 311, and the other end is connected to the main flow cavity 321. A first solenoid valve 313 is installed inside the radiation channel 312. When the first solenoid valve 313 is closed, the naphthalene-based water-reducing agent waste, diluent, and dilution waste stored in the central cavity 311 cannot flow into the main flow cavity 321. When the first solenoid valve 313 is open, the naphthalene-based water-reducing agent waste, diluent, and dilution waste stored in the central cavity 311 can flow into the main flow cavity 321 under the action of centrifugal force. (Refer to...) Figure 8 The first solenoid valve 313 is installed at the end of the radiation channel 312 away from the central cavity 311; refer to Figure 14 The first solenoid valve 313 is installed at the end of the radiation channel 312 near the central cavity 311.

[0041] The first solenoid valve 313 is electrically connected to a disc generator installed between the mixing disc 31 and the filter cake disc 32. The disc generator is installed at the center of the bottom surface of the main flow chamber 321, and the distance between it and the diversion channel 322 is greater than the distance between the radiation channel 312 and the diversion channel 322. Since the filter cake disc 32 is normally in a rotating state, the diluted waste discharged through the radiation channel 312 can flow into the diversion channel 322 under the action of centrifugal force, instead of flowing to the disc generator and causing jamming. The disc generator includes an upper rotor 314 and a lower rotor 315 that are coaxially arranged and cooperate with each other. The upper rotor 314 is installed at the center of the bottom surface of the mixing disc 31 (e.g., fixed by bolts), and the lower rotor 315 is installed at the center of the bottom surface of the main flow chamber 321 (e.g., fixed by bolts). When the mixing disc 31 and the filter disc 32 rotate relative to each other, they can drive the upper rotor 314 and the lower rotor 315 to rotate relative to each other, thereby generating a monitorable current (the magnitude and frequency of the current can be monitored in real time and used as a signal to open and close the first solenoid valve 313), thereby realizing the control of the first solenoid valve 313 and simplifying the structure as much as possible (since the first solenoid valve 313 is installed in the rotatable mixing disc 31, and the mixing disc 31 is installed in the rotatable filter disc, it is difficult to connect the first solenoid valve 313 to the external controller through wires and signal lines, which would cause entanglement).

[0042] The relative rotational speeds of the mixing disc 31 and the filter disc 32 are adjustable (either by adjusting the absolute rotational speed of the mixing disc 31 to match the absolute rotational speed of the filter disc 32, thus adjusting the relative speed; or by adjusting the absolute rotational speed of the filter disc 32 to match the absolute rotational speed of the mixing disc 31, thus adjusting the relative speed), which allows for further adjustment of the magnitude and / or frequency of the current output by the disc generator. This is used to control the opening and closing timing of the first solenoid valve 313 to match the start and end timing of the solid-liquid separation of the diluted waste. (Refer to...) Figure 12 and Figure 13 When the absolute speed of the filter cake rotating disc 32 is the first speed, the first solenoid valve 313 opens; when the absolute speed of the filter cake rotating disc 32 is lower than the first speed, the first solenoid valve 313 closes.

[0043] Reference Figure 16For example, when the absolute speed of the mixing disc 31 is constant at V0, and its rotation direction is opposite to that of the filter disc 32, if the absolute speed of the filter disc 32 is the first speed, then the relative speed of the filter disc 32 with respect to the mixing disc 31 (i.e., the relative speed of the upper rotor 314 and the lower rotor 315) is: first speed + V0 = seventh speed. At this time, the current output by the disc generator is Q0 and the current frequency is P0. If the absolute speed of the filter disc 32 is the second speed, then the relative speed of the filter disc 32 with respect to the mixing disc 31 (i.e., the relative speed of the upper rotor 314 and the lower rotor 315) is: second speed + V0 = sixth speed, and the sixth speed is less than the seventh speed. At this time, the current output by the disc generator is Qn and the current frequency is Pn (and Q0 > Qn, P0 > Pn). Therefore, it is only necessary to monitor in real time whether the magnitude of the current reaches Q0 (specifically, it is opened when it is greater than or equal to Q0 and closed when it is less than Q0), and / or monitor in real time whether the frequency of the current reaches P0, to determine whether the first solenoid valve 313 needs to be opened / closed (specifically, it is opened when it is greater than or equal to P0 and closed when it is less than P0).

[0044] Similarly, when the absolute rotational speed of the mixing disc 31 is a variable value, and the range of variation is V1 to V2 (V1 < V2), and the rotational direction of the mixing disc 31 is opposite to the rotational direction of the filter disc 32, if the absolute rotational speed of the filter disc 32 is the first rotational speed, then the relative rotational speed of the filter disc 32 relative to the mixing disc 31 (i.e., the relative rotational speed of the upper rotor 314 and the lower rotor 315) is: first rotational speed + V1 to first rotational speed + V2. At this time, the magnitude of the current output by the disc generator is Q1 to Q2, and the current frequency is P1 to P2. Therefore, it is only necessary to monitor in real time whether the magnitude of this current is ≥ Q1 (specifically, it is opened when it is greater than or equal to Q1 and closed when it is less than Q1), and / or monitor in real time whether the frequency of this current is ≥ P1, to determine whether it is necessary to open / close the first solenoid valve 313 (specifically, it is opened when it is greater than or equal to P1 and closed when it is less than P1).

[0045] Reference Figure 17 During backwashing, the absolute rotational speed of the filter cake swirl disk 32 needs to be reduced to below the first rotational speed. Therefore, the rotational speed of the mixing swirl disk 31 needs to be increased by v, so that the absolute rotational speed of the mixing swirl disk 31 is V0+v (or V1+v~V2+v). Then, the relative rotational speed of the filter cake swirl disk 32 with respect to the mixing swirl disk 31 is the first rotational speed + V0+v (or the first rotational speed + V1+v~the first rotational speed + V2+v), thereby meeting the conditions for opening the first solenoid valve 313, which allows the diluted liquid in the mixing swirl disk 31 to flow into the filter cake swirl disk 32.

[0046] Reference Figure 8The radial flow channel 312 is arranged along the radial direction of the mixing disc 31, and the diversion channel 322 is arranged along the radial direction of the filter residue disc 32. It is adapted to the direction of centrifugal force, thereby controlling the flow of fluids (including naphthalene-based water-reducing agent waste, diluent and dilution waste liquid) and reducing residue.

[0047] The mixing disc 31 and the filter cake disc 32 can rotate in opposite or the same direction, allowing for flexible adjustment of their relative speeds without affecting the absolute speed of the filter cake disc 32 (i.e., the opening and closing of the first solenoid valve 313 and the flow direction of the fluid within the sorting channel 323 can be independently controlled). If the absolute speed of the mixing disc 31 is zero, simply adjusting the speed of the filter cake disc 32 cannot meet the basic requirement of flexibly controlling the fluid flow direction (especially during backwashing when control requirements are high). Therefore, this invention uses a form of adapted rotation of the mixing disc 31 and the filter cake disc 32 for fluid regulation, which has the technical effects of simplifying the structure and facilitating regulation.

[0048] Adjusting the relative rotation speed between the filter cake rotating disk 32 and the mixing rotating disk 31 can regulate the magnitude of the current output by the disc generator (due to the different number of times the coil cuts magnetic field lines per unit time), which is used to control the opening and closing of the first solenoid valve 313. (Refer to...) Figure 9The first solenoid valve 313 is vertically arranged and includes a separator cylinder 3131, an outer coil 3132, a moving iron core 3133, a fixed iron core 3134, a compression spring, a separator plate 3136, and a valve core 3137. The separator plate 3136 is fixedly installed (e.g., by an integral fixed connection) in the radial flow channel 312 to play a separating role. The separator plate 3136 has a water permeable hole in the middle. The vertically arranged valve core 3137 can be raised and lowered to block (in this state, the bottom end of the valve core 3137 is adapted to press against the outer edge of the water permeable hole) or open the water permeable hole, thereby realizing the opening and closing of the first solenoid valve 313. The bottom end of the moving iron core 3133 is coaxially and fixedly connected to the top end of the valve core 3137 (e.g., through an integrated fixed connection). The mixing disc 31 has a vertical hole adapted to accommodate the moving iron core 3133 and the valve core 3137. A vertically placed separator cylinder 3131 is sealed and fixed on the top surface of the mixing disc 31 (e.g., through bolts and a sealing ring). The inner cavity of the separator cylinder 3131 is coaxially and adapted to communicate with the vertical hole. The top end of the moving iron core 3133 is higher than the top of the mixing disc 31 and is adapted to be inserted into the separator cylinder. The inner cavity of the separator cylinder 3131 has a fixed iron core 3134 (e.g., fixed by bolts) at the top of the inner cavity. A reset spring 3135 is installed between the bottom surface of the fixed iron core 3134 and the top surface of the moving iron core 3133. An outer coil 3132 is sleeved and installed on the outer periphery of the separator cylinder 3131 and fixedly connected to the mixing disc 31 (e.g., it is clamped to the outer periphery of the outer coil 3132 by a limiting shell, and then the limiting shell and the mixing disc 31 are sealed and fixedly connected by bolts and a sealing ring). When the outer coil 3132 is energized, it forms an electromagnet structure, thereby magnetically attracting the moving iron core 3133 and pulling the valve core 3137 back, realizing the opening of the first solenoid valve 313. When the outer coil 3132 is de-energized, the reset spring 3135 drives the moving iron core 3133 and the valve core 3137 to extend and block the water inlet, realizing the closing of the first solenoid valve 313.

[0049] When the opening and closing of the first solenoid valve 313 is controlled by the magnitude of the current: the terminals of the disc generator (specifically the terminals of the upper rotor 314) and the terminals of the outer coil 3132 are connected by wires (the mixing disc 31 has a channel for laying guides), and the resistance threshold (resistance comes from the reset spring 3135, and a suitable reset spring 3135 can be obtained by changing the reset spring 3135 with different materials, widths, pitches, number of turns and other parameters a limited number of times) is matched with the magnetic attraction threshold. When the relative rotational speed between the mixing disc 31 and the filter disc 32 reaches the seventh rotational speed (or the first rotational speed + V1), a disc generator outputs a current of a specific magnitude. This current, after being input into the outer coil 3132, generates a magnetic attraction force on the moving iron core 3133, which is the magnetic attraction force threshold (a suitable disc generator can be obtained by adjusting the arrangement density of permanent magnets and the number of winding turns in the upper rotor 314 and the lower rotor 315 a limited number of times). Therefore, when the relative rotational speed between the mixing disc 31 and the filter disc 32 reaches (or exceeds) the seventh rotational speed (or the first rotational speed + V1), the first solenoid valve 313 can automatically open; conversely, when the relative rotational speed between the mixing disc 31 and the filter disc 32 is less than the seventh rotational speed (or the first rotational speed + V1), the first solenoid valve 313 can automatically close.

[0050] Since the disc generator outputs alternating current, adjusting the relative rotation speed of the filter disc 32 and the mixing disc 31 can regulate the frequency of the current output by the disc generator (i.e., controlling the opening and closing of the first solenoid valve 313 by the current frequency). Specifically, the mixing disc 31 has a receiving cavity (which is not connected to the central cavity 311 and the radial flow channel 312). A current sensor (e.g., a frequency conversion current sensor in AC current sensors), a processing unit (e.g., a central processing unit), a storage unit (e.g., a memory), a battery, and a switch are fixedly installed in the receiving cavity by bolts. The current sensor, processing unit, storage unit, and switch are connected to the battery by wires. The terminals of the disc generator (specifically the terminals of the upper rotor 314) are connected to the battery by wires and a rectifier (the current generated by the rotation of the disc generator is transmitted into the battery for storage). The terminals of the outer coil 3132 are connected to the switch by wires. The current sensor is used to collect the actual frequency data of the current output by the disc generator in real time, and the processing unit is used to calculate the relationship between the actual frequency data and the built-in standard frequency data, thereby determining whether to control the opening and closing of the first solenoid valve 313 by the switch. When the relative rotational speed between the mixing disc 31 and the filter disc 32 is the seventh rotational speed (or the first rotational speed + V1), the frequency of the current output by the disc generator is the standard frequency data. If the actual frequency data is less than the standard frequency data, the arithmetic unit determines that the relative rotational speed between the mixing disc 31 and the filter disc 32 is less than the seventh rotational speed (or the first rotational speed + V1), and then controls the outer coil 3132 to be de-energized via a switch, thus the first solenoid valve 313 is closed. If the actual frequency data is greater than or equal to the standard frequency data, the arithmetic unit determines that the relative rotational speed between the mixing disc 31 and the filter disc 32 is greater than or equal to the seventh rotational speed (or the first rotational speed + V1), and then controls the outer coil 3132 to be energized via a switch, thus the first solenoid valve 313 is open. Therefore, when the relative rotational speed of the mixing disc 31 and the filter disc 32 reaches (or exceeds) the seventh rotational speed (or the first rotational speed + V1), the first solenoid valve 313 can automatically open; conversely, when the relative rotational speed of the mixing disc 31 and the filter disc 32 is less than the seventh rotational speed (or the first rotational speed + V1), the first solenoid valve 313 can automatically close. Standard frequency data (values) are pre-stored in the storage unit.

[0051] Reference Figure 1 , Figure 2 and Figure 5The liquid phase storage chamber 4 and the solid phase storage chamber 5 can be vertically stacked coaxially and fitted around the outer periphery of the filter residue swirl plate 32, respectively adapting to the top opening of the uphill channel 3231 and the bottom opening of the downhill channel 3232. The vertical cross-sections of both the liquid phase storage chamber 4 and the solid phase storage chamber 5 are U-shaped, thus forming an annular groove for containing waste liquid and waste residue 7. The outer wall of the liquid phase storage chamber 4 is higher than the inner wall to prevent splashing waste liquid; the outer wall of the solid phase storage chamber 5 is higher than the inner wall to form the feed gap 51 and prevent splashing waste residue 7. The waste residue 7 discharged through the downhill channel 3232 can penetrate the feed gap 51 and fall into the inner cavity of the solid phase storage chamber 5 for temporary storage. A limiting ring plate 52 with an L-shaped vertical cross section is fixedly installed on the top surface of the outer wall of the solid phase storage chamber 5 (for example, by an integral fixed connection). The limiting ring plate 52 is 1 / 2 circular and coaxial with the solid phase storage chamber 5. The bottom surface of the liquid phase storage chamber 4 can be pressed and locked in the position of the limiting ring plate 52. Therefore, the liquid phase storage chamber 4 and the solid phase storage chamber 5 can be easily loaded and unloaded.

[0052] Reference Figure 1 , Figure 10 and Figure 11 The base 6 has a circular stepped structure 61 on its outer edge for fitting and mounting the solid phase storage chamber 5. Each liquid phase storage chamber 4 is half-circular and has a sealing plate at its end opening (e.g., a sealed connection achieved by welding). Two liquid phase storage chambers 4 can be joined to form a ring and fitted onto the outer circumference of the filter cake rotary disc 32 (adjacent liquid phase storage chambers 4 are detachably connected at their end joints via spring clips), facilitating easy loading and unloading of the liquid phase storage chambers 4 and the filter cake rotary disc 32. The solid phase storage chamber 5 is also half-circular and has a sealing plate at its end opening (e.g., a sealed connection achieved by welding). Two solid phase storage chambers 5 can be joined to form a ring and fitted onto the outer circumference of the filter cake rotary disc 32 (adjacent solid phase storage chambers 5 are detachably connected at their end joints via spring clips), facilitating easy loading and unloading of the solid phase storage chambers 5 and the filter cake rotary disc 32. During operation, operators can conveniently install the liquid phase storage chamber 4 and the solid phase storage chamber 5 on the outer periphery of the recovery tray group 3 using transport equipment (such as overhead cranes, forklifts, etc.; when using a forklift, the step surface of the step structure 61 is provided with a straight groove for the forklift shovel to insert).

[0053] Reference Figure 1 , Figure 6 and Figure 7The mixing disc 31 is rotatably connected to the base 6 via a first drive shaft 33, and the filter disc 32 is rotatably connected to the base 6 via a second drive shaft 34. The second drive shaft 34 is hollow and sleeved on the outer circumference of the first drive shaft 33, with a bearing installed between them to reduce friction. The top end of the first drive shaft 33 is fixedly connected to the center of the bottom surface of the mixing disc 31 in a T-shape (e.g., by bolts), and the bottom end is inserted into the base 6; the top end of the second drive shaft 34 is fixedly connected to the center of the bottom surface of the filter disc 32 in a T-shape (e.g., by bolts), and the bottom end is inserted into the base 6. A first motor 62 for driving the mixing disc 31 and a second motor 64 for driving the filter disc 32 are installed inside the base 6. The first motor 62 is connected to the first transmission gear via the first accelerator 63 (e.g., a gear accelerator). The first transmission gear is installed in the base 6 and is rotatable (e.g., connected via a shaft, bearing, and bearing seat). The bottom end of the first transmission shaft 33 is fixedly connected to the first gear 331 (e.g., connected via bolts and keys). The first gear 331 meshes with the first transmission gear, so the first motor 62 can drive the first gear 331 to rotate via the first transmission gear, thereby driving the first transmission shaft 33 and the mixing disc 31 to rotate. The second motor 64 is connected to the second transmission gear via the second accelerator 65 (e.g., a gear accelerator). The second transmission gear is installed in the base 6 and is rotatable (e.g., connected via a shaft, bearing, and bearing seat). The bottom end of the second transmission shaft 34 is fixedly connected to the second gear 341 (e.g., connected via bolts and keys). The second gear 341 meshes with the second transmission gear, so the second motor 64 can drive the second gear 341 to rotate via the second transmission gear, thereby driving the second transmission shaft 34 and the filter disc 32 to rotate. The first accelerator 63 and the second accelerator 65 are both fixedly installed in the inner cavity of the base 6 by bolts.

[0054] Reference Figure 6 and Figure 7 A reinforcing sleeve 35 is fitted around the outer periphery of the second drive shaft 34, and the two are connected by a bearing. The bottom end of the reinforcing sleeve 35 is fixedly connected to the top surface of the base 6 (e.g., by bolts). A thrust bearing is installed between the top surface of the reinforcing sleeve 35 and the bottom surface of the filter cake swirl disk 32, so that the weight of the filter cake swirl disk 32 can act on the reinforcing sleeve 35, thereby preventing the second drive shaft 34 from overload deformation, improving rotational stability, and extending the service life of the invention. A thrust bearing is installed between the bottom surface of the mixing swirl disk 31 and the bottom surface of the main flow cavity 321 of the filter cake swirl disk 32, so that the weight of the mixing swirl disk 31 can act on the mixing swirl disk 31 and the reinforcing sleeve 35, thereby preventing the first drive shaft 33 from overload deformation, improving rotational stability, and extending the service life of the invention. A central insertion hole is provided at the center of the filter cake swirl disk 32, and the first drive shaft 33 is adapted to be inserted into the central insertion hole and rotatedly connected by a bearing.

[0055] Reference Figure 2 The inner wall of the main flow cavity 321 has a first fin 3211 at its top. The first fin 3211 is annular and extends radially inward to stop the naphthalene-based water-reducing agent waste, diluent, and dilution waste in the main flow cavity 321 from splashing out. (Refer to...) Figure 8 The central cavity 311 has a second fin 3111 at the top opening. The second fin 3111 has a topless and frustum-shaped structure. The bottom of the inner cavity of the second fin 3111 is connected to the central cavity 311. It is used to stop the naphthalene-based water-reducing agent waste, diluent and dilution waste in the central cavity 311 to prevent them from splashing out.

[0056] Both the first valve body 151 and the second valve body 211 are solenoid valves. The first motor 62, the second motor 64, and the drive motor are all controllable motors (such as servo motors or stepper motors). By inputting electrical signals to the controllable motors through an external controller, the speed, number of revolutions per rotation, angle of rotation per rotation, and start / stop timing of the controllable motors can be controlled.

[0057] The present invention also includes an electrical cabinet, which is fixedly installed in the base 6 by bolts; the drive motor, the first motor 62, the second motor 64, the first valve body 151, the second valve body 211, and the water pump are respectively connected to the electrical cabinet by wires and signal lines; the electrical cabinet is connected to the external power supply and the external controller (such as a computer or a PLC programmable logic controller) by wires and signal lines, and the external controller controls the start and stop of the drive motor, the first motor 62, the second motor 64, the first valve body 151, the second valve body 211, and the water pump in the present invention through the electrical cabinet.

[0058] A method for treating waste naphthalene-based water-reducing agents involves using a waste residue treatment device to recover waste residue 7 from the waste naphthalene-based water-reducing agent materials. The steps include: S1. Use crushing module 1 to crush the waste residue 7 in the naphthalene-based water-reducing agent waste; S2. The mixing disc 31 rotates (and the first solenoid valve 313 is closed). Then, the crushing module 1 injects a measured amount of naphthalene-based water-reducing agent waste into the central cavity 311 of the mixing disc 31, and the dilution module 2 injects a measured amount of diluent into the central cavity 311 of the mixing disc 31. During the rotation of the mixing disc 31, the naphthalene-based water-reducing agent waste and the diluent are mixed to obtain diluted waste. The discharge rates of the naphthalene-based water-reducing agent waste and the diluent can be controlled separately by the first valve body 151 and the second valve body 211, thereby controlling them at a suitable dilution ratio (the specific value can be obtained by performing a limited number of tests in advance and stored in the peripheral controller, which controls the discharge rate by controlling the opening time of the first valve body 151 and the second valve body 211), thus avoiding the problem of excessive water consumption.

[0059] S3. The filter residue swirl plate 32 rotates to separate the waste residue 7 and waste liquid in the diluted waste material and discharge them through the top opening of the uphill channel 3231 and the bottom opening of the downhill channel 3232, respectively.

[0060] Step S3 further includes the following steps (see reference) Figure 16 ): S31, the mixing disc 31 accelerates to the point where the first valve body 151 is open for a certain period of time (e.g., 3-4 seconds), then the mixing disc 31 decelerates to control the first valve body 151 to close, so that a certain amount of diluted waste material flows from the mixing disc 31 to the position of the first filter screen 324 for solid-liquid separation. The waste residue 7 is blocked at the position of the first filter screen 324, and some waste liquid penetrates the first filter screen 324 and is discharged through the top opening of the uphill channel 3231. During this period, the filter residue disc 32 maintains the rotation speed at the first rotation speed.

[0061] S32, the filter residue swirl plate 32 continues to maintain the absolute speed at the first speed for a certain period of time (e.g., 5-6 seconds) to throw off as much waste material as possible adhering to the surface of the waste residue 7 (the diluted waste material flows in a strip shape, and its flow to the first filter screen 324 position has a time sequence, so sufficient time needs to be reserved for the diluted waste material that flows to the first filter screen 324 position later for solid-liquid separation).

[0062] S33, the filter residue swirl disc 32 decelerates to the absolute speed of the second rotating shaft and continues for a certain period of time (e.g., 6-7 seconds), causing the waste residue 7 at the position of the first filter screen 324 to fall downward and be discharged through the bottom opening of the downhill channel 3232.

[0063] In this invention, after repeating steps S1 to S3 several times, backwashing is required. The backwashing steps are as follows (refer to...). Figure 17 ): A1. The filter residue swirl disc 32 decelerates to the third absolute speed; at the same time, the mixing swirl disc 31 decelerates to the first solenoid valve 313 closes.

[0064] A2. The dilution module 2 injects the diluent into the central cavity 311 of the mixing disc 31.

[0065] A3. When the mixing disc 31 is accelerated to the point that the first solenoid valve 313 is opened for a certain period of time (e.g., 1 to 3 seconds), the diluted liquid flows from the mixing disc 31 to the filter residue disc 32, and accumulates in the uphill channel 3231 after passing through the first filter screen 324.

[0066] A4. The filter residue swirl plate 32 is decelerated and rotated to the second absolute speed, so that the diluted liquid flows down along the uphill channel 3231 and penetrates the first filter screen 324 again, and then is discharged along the downhill channel 3232.

[0067] This invention has a simple structure and reliable function. Instead of using a large amount of water to rinse and soak the waste residue 7, it controls the discharge of naphthalene-based water-reducing agent waste and diluent through crushing module 1 and dilution module 2 respectively, thereby controlling the dilution ratio within a suitable range, reducing water consumption, and avoiding the problem of needing to re-concentrate the waste liquid to recover the naphthalene-based water-reducing agent.

[0068] By simply changing the rotation speed of the filter cake swirl plate 32, the solid-liquid separation of diluted waste, the discharge of waste residue 7, and the backwashing of the first filter screen 324 can be selectively performed. This solution can flexibly and quickly switch working modes, minimize downtime (and reduce the time required for mechanical transmission), and solve the problem of backwashing that is difficult to perform in traditional centrifugal equipment.

[0069] The recovery tray assembly 3 can discharge waste residue 7 and waste liquid from different heights, and then place them into the vertically stacked liquid phase storage chamber 4 and solid phase storage chamber 5 respectively, facilitating individual storage. Waste residue 7 is supported by the second filter screen 53 at a middle height in the solid phase storage chamber 5, allowing the backwashed diluent to flow through (and penetrate) the waste residue 7, achieving secondary cleaning of the waste residue 7, further reducing the amount of naphthalene-based water-reducing agent remaining on its surface, and increasing the calcium sulfate content ratio. The diluent accumulating at the bottom of the solid phase storage chamber 5 also contains extractable naphthalene-based water-reducing agent, facilitating material recovery.

[0070] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0072] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. A device for treating naphthalene-based water-reducing agent waste residue, characterized in that, include: The crushing module (1) is used to crush the waste residue (7) in the naphthalene-based water-reducing agent waste and control the flow rate of the naphthalene-based water-reducing agent waste; The dilution module (2) is capable of discharging a fixed amount of diluent; The recovery disc assembly (3) is used to remove naphthalene-based water-reducing agent from the surface of the waste residue (7).

2. The naphthalene-based water-reducing agent waste residue treatment device according to claim 1, characterized in that: The recovery disc assembly (3) includes a mixing disc (31) and a filter residue disc (32); the mixing disc (31) is used to mix the naphthalene-based water-reducing agent waste and the diluent to obtain diluted waste; the filter residue disc (32) is used to recover the waste residue (7) in the diluted waste. The filter cake swirl disc (32) is provided with a main flow chamber (321), a diversion channel (322), and a sorting channel (323) from the inside to the outside. The sorting channel (323) includes an uphill channel (3231) and a downhill channel (3232). One end of the diversion channel (322) is connected to the outer edge of the main flow chamber (321), and the other end of the diversion channel (322) is connected to the bottom end of the uphill channel (3231) and the top end of the downhill channel (3232) in a three-way configuration. A first filter screen (324) is provided at the bottom end of the uphill channel (3231). The filter residue swirl (32) can rotate at a first speed, causing the diluted waste to flow to the position of the first filter screen (324) and undergo solid-liquid separation under the action of centrifugal force. The waste liquid penetrates the first filter screen (324) and overcomes its own gravity and is discharged through the top opening of the uphill channel (3231), while the waste residue (7) is blocked by the first filter screen (324). Then the filter residue swirl (32) can rotate at a second speed, causing the waste residue (7) to fall downward and be discharged through the bottom opening of the downhill channel (3232). The first speed is greater than the second speed.

3. The naphthalene-based water-reducing agent waste residue treatment device according to claim 2, characterized in that: The diversion channel (322) is provided with an upright elastic lever (325) at the end away from the main flow chamber (321), and a counterweight is provided at the bottom of the elastic lever (325); the elastic lever (325) is located on the side of the first filter screen (324); when the rotation speed of the filter residue spinning disc (32) changes, it can drive the bottom of the elastic lever (325) to swing, which is used to stir the waste residue (7) at the position of the first filter screen (324).

4. The naphthalene-based water-reducing agent waste residue treatment device according to claim 3, characterized in that: The sorting channel (323) is C-shaped with its opening facing away from the main flow cavity (321); the top of the first filter screen (324) is inclined outward to form an outward convex space to accommodate the waste residue (7).

5. The naphthalene-based water-reducing agent waste residue treatment device according to claim 4, characterized in that: The mixing disc (31) is disposed in the main flow chamber (321) and is coaxially disposed with the filter residue disc (32); The mixing disc (31) has a central cavity (311) and a radial flow channel (312) arranged sequentially from the inside to the outside. One end of the radial flow channel (312) is connected to the outer edge of the central cavity (311), and the other end is connected to the main flow channel (321). A first solenoid valve (313) is installed in the radial flow channel (312). The first solenoid valve (313) is electrically connected to a disc generator installed between the mixing disc (31) and the filter cake disc (32). The relative rotation speed of the mixing disc (31) and the filter disc (32) can be adjusted to control the opening and closing timing of the first solenoid valve (313) to match the start and end timing of the solid-liquid separation of the diluted waste.

6. The naphthalene-based water-reducing agent waste residue treatment device according to claim 5, characterized in that: The mixing disc (31) and the filter disc (32) rotate in opposite directions.

7. The naphthalene-based water-reducing agent waste residue treatment device according to claim 6, characterized in that: Adjusting the relative rotation speed between the filter residue rotating disc (32) and the mixing rotating disc (31) can adjust the magnitude of the current output by the disc generator, which is used to control the opening and closing of the first solenoid valve (313).

8. The naphthalene-based water-reducing agent waste residue treatment device according to claim 6, characterized in that: Adjusting the relative rotation speed between the filter residue rotating disc (32) and the mixing rotating disc (31) can adjust the frequency of the current output by the disc generator; The mixing disc (31) is equipped with a current sensor, a computing unit, a battery and a switch. The current sensor is used to collect the actual frequency data of the current output by the disc generator. The computing unit is used to calculate the relationship between the actual frequency data and the built-in standard frequency data, so as to determine whether to control the opening and closing of the first solenoid valve (313) by the switch.

9. The naphthalene-based water-reducing agent waste residue treatment device according to any one of claims 7 or 8, characterized in that: It also includes a liquid phase storage chamber (4) and a solid phase storage chamber (5) that can be fitted onto the outer wall of the filter cake swirl plate (32); the vertical cross-section of the liquid phase storage chamber (4) and the solid phase storage chamber (5) are both U-shaped; the liquid phase storage chamber (4) can be pressed onto the solid phase storage chamber (5); the height of the outer wall of the liquid phase storage chamber (4) is higher than the inner wall, which is used to stop the splashing of the waste liquid; the height of the outer wall of the solid phase storage chamber (5) is higher than the inner wall, which is used to form a feed gap (51) and stop the splashing of the waste residue (7).

10. A method for treating waste naphthalene-based water-reducing agents, characterized in that, The waste residue (7) in the naphthalene-based water-reducing agent waste is recovered using the waste residue treatment device of claim 9, and the steps include: S1. Use the crushing module (1) to crush the waste residue (7) in the naphthalene-based water-reducing agent waste. S2. The mixing disc (31) rotates to mix the naphthalene-based water-reducing agent waste from the crushing module (1) and the diluent from the dilution module (2) to obtain diluted waste. S3. The filter residue swirl plate (32) rotates to separate the waste residue (7) and waste liquid in the diluted waste material and discharge them through the top opening of the uphill channel (3231) and the bottom opening of the downhill channel (3232), respectively.

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