Fly ash dechlorination treatment device with multi-stage water washing function

Abstract

The application discloses a fly ash dechlorination treatment device with a multi-stage water washing function, and relates to the technical field of solid waste treatment. The fly ash dechlorination treatment device comprises a support, a water washing tank, a driving motor, a transmission shaft and a dispersion mechanism. The water washing tank is fastened to the support, the driving motor is fastened to the water washing tank, the output end of the driving motor is in transmission connection with the transmission shaft, and the dispersion mechanism is fastened to the transmission shaft. The dispersion mechanism is used for stirring fly ash and is arranged on the transmission shaft in several groups. The support provides a stable working environment for the fly ash dechlorination treatment device. First, fly ash to be washed is added into the water washing tank, then clean water is added into the water washing tank for cleaning. The driving motor is started, torque is output to the transmission shaft, the transmission shaft is driven to rotate, the dispersion mechanism fixed to the transmission shaft is driven to act, the dispersion mechanism is in the shape of a blade, the fly ash and water mixture in the water washing tank can be stirred, the fly ash and water are uniformly stirred, and the precipitation of chlorides is promoted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solid waste treatment, and particularly relates to a fly ash dechlorination treatment device with a multi-stage water washing function. BACKGROUND

[0002] The fly ash of household waste incineration contains high salt, mainly chlorides. If comprehensive utilization is to be carried out, desalination measures should be taken to reduce the chlorine content to below 2%. The existing fly ash water washing desalination technology mainly mixes and stirs fly ash and water through a stirring device, and then uses a plate and frame filter to separate the solid and liquid to let the water carry out the salt in the fly ash.

[0003] Because the fly ash is a powder solid, the powder is easy to agglomerate together during the stirring process of water washing, and the fly ash powder inside the agglomerate cannot contact clean water, so the chlorides cannot be completely removed, resulting in poor water washing effect. SUMMARY

[0004] The present application aims to provide a fly ash dechlorination treatment device with a multi-stage water washing function to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: the present application provides a fly ash dechlorination treatment device with a multi-stage water washing function, which comprises a support, a water washing tank, a driving motor, a transmission shaft and a dispersion mechanism. The water washing tank is fixedly connected with the support, the driving motor is fixedly connected with the water washing tank, the output end of the driving motor is in transmission connection with the transmission shaft, and the dispersion mechanism is fixedly connected with the transmission shaft. The dispersion mechanism is used for stirring fly ash, and a plurality of groups of the dispersion mechanism are arranged on the transmission shaft.

[0006] The support provides a stable working environment for the fly ash dechlorination treatment device. First, the fly ash to be washed is added into the water washing tank, then clean water is added into the water washing tank for cleaning, the driving motor is started to output torque to the transmission shaft, thereby driving the transmission shaft to rotate, so as to drive the dispersion mechanism fixed on the transmission shaft to act. The dispersion mechanism is in the form of a blade, which can stir the mixture of fly ash and water in the water washing tank, so as to uniformly stir the fly ash and water, thereby promoting the precipitation of chlorides.

[0007] Further, the dispersion mechanism comprises a connecting block, a frame, a variable assembly, a detection assembly and a dispersion assembly. The connecting block is fixedly connected with the transmission shaft, the frame is in rotary connection with the connecting block, the variable assembly is fixedly connected with the frame, the variable assembly is used for collecting fly ash agglomerates, the detection assembly is fixedly connected with the frame, the detection assembly is electrically connected with the variable assembly, the detection assembly is used for detecting the size of the fly ash agglomerates, and the dispersion assembly is fixedly connected with the frame. The dispersion assembly is used for dispersing the fly ash agglomerates.

[0008] Because the particle diameter of fly ash is very small, the distance between particles is very short, and the Van der Waals force between particles is much greater than the gravity of the particles themselves. Therefore, fly ash particles often attract and agglomerate each other during the water washing process, and the dispersion mechanism is used to process the fly ash agglomerates; the connecting block is used to fix the dispersion mechanism on the transmission shaft, and the frame is used to provide a mounting base for the variable assembly. Because the impact force of different sizes of fly ash agglomerates is different, the larger the fly ash agglomerates, the greater the impact force on the detection assembly, and the size of the mesh on the variable assembly is controlled by detecting the size of this impact force.

[0009] Further, the connecting block is provided with an arc-shaped slot, the side of the frame close to the connecting block is provided with a rotating shaft, the rotating shaft is rotatably connected with the connecting block, the dispersion assembly comprises a connecting column, an arc-shaped sliding block, a resistance rod and an arc-shaped spring, the connecting column is fixedly connected with the rotating shaft, the arc-shaped sliding block is fixedly connected with the connecting column, the arc-shaped sliding block is slidably connected with the arc-shaped slot, the resistance rod is fixedly connected with the arc-shaped sliding block, the resistance rod is arranged on both sides of the arc-shaped sliding block, one end of the arc-shaped spring is fixedly connected with the resistance rod, and the other end of the arc-shaped spring is fixedly connected with the inner wall of the arc-shaped slot. Two contacts are symmetrically arranged on the arc-shaped slot, and the two contacts are electrically connected with the resistance rod respectively.

[0010] During the stirring process, the distribution position of fly ash agglomerates in the water washing tank is uneven. During the rotation of the dispersion mechanism, the fly ash agglomerates may fall on the upper half, the middle part or the lower half of the variable assembly. Because the rotating shaft is located at the midpoint of the frame, when the fly ash agglomerates are located on the upper half of the variable assembly, under the influence of the weight of the fly ash agglomerates, the frame will deflect to one side with the rotating shaft as the center of rotation. Under the driving of the connecting column, the arc-shaped sliding block will deflect to one side along the arc-shaped slot. The resistance rod on the same side contacts the contact, the circuit is connected, and the position of the fly ash agglomerates falling on the upper half of the variable assembly is higher. Under the action of the lever, the farther the resistance rod deviates to one side, the shorter the distance through which the current flows through the resistance rod, and the smaller the relative resistance of the resistance rod. That is, the higher the position of the fly ash agglomerates on the variable assembly, the smaller the relative resistance of the resistance rod, and the larger the current flowing in the circuit. Conversely, when the fly ash agglomerates are located in the middle part of the variable assembly, the frame does not deflect, the resistance rod does not contact the contact, and the circuit is not connected.

[0011] Further, the dispersion assembly further comprises a fixed electromagnet, a repelling magnet, a moving block, a supporting spring and an ultrasonic disperser. The frame is further provided with a sliding groove. The fixed electromagnet is fixedly connected with the sliding groove, the repelling magnet is fixedly connected with the moving block, the repelling magnet is arranged opposite to the fixed electromagnet, the moving block is slidably connected with the sliding groove, one end of the supporting spring is fixedly connected with the moving block, the other end of the supporting spring is fixedly connected with the inner wall of the sliding groove, and the ultrasonic disperser is fixedly connected with the moving block. The output end of the ultrasonic disperser faces the variable assembly.

[0012] When the fly ash agglomerate is located in the upper half of the variable assembly, the opposite ends of the fixed electromagnet and the repelling magnet are different poles;

[0013] When the fly ash agglomerate is located in the lower half of the variable assembly, the opposite ends of the fixed electromagnet and the repelling magnet are same poles.

[0014] When the fly ash agglomerate is located in the middle part of the variable assembly, the frame does not deflect, the resistance rod does not contact the contact point, the circuit is not connected, and the fixed electromagnet is not powered. At this time, the moving block is located in the middle position of the sliding groove under the support of the supporting spring, and the ultrasonic disperser is also located in the middle position, so that the fly ash agglomerate located in the middle part of the variable assembly is dispersed at a fixed point. When the fly ash agglomerate is located in the upper half of the variable assembly, the negative pole of the power supply in the circuit is connected to the fixed electromagnet at this time, that is, the opposite ends of the fixed electromagnet and the repelling magnet are different poles. Under the action of the magnetic force, the moving block is driven by the repelling magnet to move upward along the sliding groove, and the supporting spring is stretched under the force. The farther the fly ash agglomerate is located in the variable assembly, the smaller the relative resistance of the resistance rod, the greater the current flowing in the circuit, the greater the current transmitted to the fixed electromagnet, the greater the magnetic force of the fixed electromagnet, and the longer the distance of the moving block moving along the sliding groove. The ultrasonic disperser fixed with the moving block is moved upward by a longer distance. When the fly ash agglomerate is located in the lower half of the variable assembly, the positive pole of the power supply in the circuit is connected to the fixed electromagnet at this time, that is, the opposite ends of the fixed electromagnet and the repelling magnet are same poles. Under the action of the magnetic force, the moving block is driven by the repelling magnet to move downward along the sliding groove, and the supporting spring is compressed under the force. The farther the fly ash agglomerate is located in the variable assembly, the smaller the relative resistance of the resistance rod, the greater the current flowing in the circuit, the greater the current transmitted to the fixed electromagnet, the greater the magnetic force of the fixed electromagnet, and the longer the distance of the moving block moving along the sliding groove. The ultrasonic disperser fixed with the moving block is moved downward by a longer distance. That is, the position of the ultrasonic disperser is automatically adjusted according to the position of the fly ash agglomerate in the variable assembly, and the fly ash agglomerate is dispersed at a fixed point.

[0015] Further, the variable assembly includes a fixed net and a moving net, the frame is provided with a movable slot, the fixed net is tightly connected with the frame, the fixed net is located on the water surface of the dispersing mechanism, the moving net is slidably connected with the movable slot, the movable slot is provided with an adjusting assembly, the adjusting assembly is electrically connected with the detecting assembly, the adjusting assembly is used for adjusting the position of the moving net, and the fixed net and the moving net are both provided with mesh holes.

[0016] In the initial state, the meshes on the fixed network and the mobile network coincide, at this time, the relative mesh diameter is maximum, which can intercept the large volume of fly ash agglomerates, but as the fly ash agglomerates are dispersed, the volume of the agglomerates will gradually decrease, and the small-diameter fly ash agglomerates will directly pass through the mesh and cannot be intercepted on the fixed network, the relative position between the mobile network and the fixed network is adjusted by adjusting the adjusting assembly, so as to adjust the size of the relative mesh between the two, and the small-diameter fly ash agglomerates are captured.

[0017] Further, the detection assembly comprises a protective shell, a force receiving rod and a pressure sensitive resistor, the protective shell is fixedly connected with the frame, the force receiving rod is rotationally connected with the protective shell, one end of the pressure sensitive resistor is fixedly connected with the inner wall of the protective shell, the detection end of the pressure sensitive resistor is in abutment with the force receiving rod, and the pressure sensitive resistor is electrically connected with the adjusting assembly.

[0018] In the initial dispersion stage, the volume of the fly ash agglomerates is large, and the weight is large; when the dispersion mechanism rotates and stirs in the water washing tank, when the fly ash agglomerates collide with the part of the force receiving rod extending outside the protective shell, the force receiving rod in the protective shell will be deflected to the other side, thereby pressing the pressure sensitive resistor, and as the volume of the fly ash agglomerates gradually decreases during the dispersion process, the pressure on the pressure sensitive resistor is smaller, the resistance value of the pressure sensitive resistor is smaller, and the current transmitted to the adjusting assembly is larger.

[0019] Further, the adjusting assembly comprises an adjusting electromagnet, an attracting block and an adjusting spring, the adjusting electromagnet is fixedly connected with the inner wall of the movable groove, the attracting block is arranged opposite to the adjusting electromagnet, the attracting block is fixedly connected with the mobile network, the attracting block is made of ferromagnetic material, one end of the adjusting spring is fixedly connected with the inner wall of the movable groove, and the other end of the adjusting spring is fixedly connected with the mobile network.

[0020] Because the volume of the fly ash agglomerates is smaller, the current transmitted to the adjusting electromagnet by the pressure sensitive resistor is larger, the magnetic force of the adjusting electromagnet is larger, the attracting force on the attracting block is larger, thereby the distance that the mobile network moves along the movable groove to the side of the adjusting electromagnet is farther, the area where the meshes on the mobile network and the meshes on the fixed network coincide is reduced, the relative mesh diameter between the two is reduced, that is, the size of the mesh on the variable assembly is automatically adjusted according to the volume of the fly ash agglomerates, so as to capture fly ash agglomerates of different sizes.

[0021] Further, the water washing tank is provided with a feeding port, a water inlet and a discharging port, and the water inlet is connected with a water source.

[0022] The fly ash that needs to be washed is added into the water washing tank from the feeding port, the cleaning water is added from the water inlet, and the discharging port is used for discharging the fly ash after washing for subsequent treatment, and multiple groups of water washing tanks can be arranged to realize multi-stage washing of the fly ash, so as to improve the removal effect of chlorides.

[0023] Compared with the prior art, the beneficial effects of the present application are:

[0024] 1. When the fly ash agglomerate is located in the upper half of the variable component, the negative pole of the power supply in the circuit is connected to the fixed electromagnet, that is, the opposite ends of the fixed electromagnet and the repelling magnet are opposite magnetic poles. Under the action of the magnetic force, the moving block will be driven by the repelling magnet to move upward along the slide slot, and the supporting spring will be stretched. The higher the position of the fly ash agglomerate in the variable component, the smaller the relative resistance of the resistance rod, the greater the current flowing in the circuit, the greater the current transmitted to the fixed electromagnet, the greater the magnetic force of the fixed electromagnet, the longer the distance the moving block moves upward along the slide slot, and the longer the distance the ultrasonic disperser fixed to the moving block is moved upward; when the fly ash agglomerate is located in the lower half of the variable component, the circuit The positive pole of the intermediate power supply is connected to the fixed electromagnet, that is, the facing ends of the fixed electromagnet and the repelling magnet are the same magnetic poles. Under the action of the magnetic force, the moving block will be driven by the repelling magnet to move downward along the slide slot, and the supporting spring will be compressed. The lower the position of the fly ash agglomerate in the variable component, the smaller the relative resistance of the resistance rod, the greater the current flowing through the circuit, the greater the current transmitted to the fixed electromagnet, the greater the magnetic force of the fixed electromagnet, the longer the distance the moving block moves down along the slide slot, and the longer the distance the ultrasonic disperser fixed to the moving block is moved down; that is, the position of the ultrasonic disperser is automatically adjusted according to the position of the fly ash agglomerate in the variable component, and the fixed-point dispersion of the fly ash agglomerates is achieved.

[0025] 2. The smaller the volume of the fly ash agglomerates, the greater the current transmitted by the varistor to the adjusting electromagnet, the greater the magnetic force of the adjusting electromagnet, and the greater the attraction to the attraction block, thereby driving the mobile net to move farther along the movable slot toward the side of the adjusting electromagnet, so that the area where the mesh on the mobile net overlaps with the mesh on the fixed net is reduced, and the relative mesh diameter between the two is reduced, that is, the size of the mesh on the variable component is automatically adjusted according to the volume of the fly ash agglomerates to capture fly ash agglomerates of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a partial cross-sectional view of the present invention;

[0028] Figure 3 for Figure 2 A local enlarged view of point A;

[0029] Figure 4 It is a partial cross-sectional view of the connecting block;

[0030] Figure 5 for Figure 4 A partial enlarged view of point B;

[0031] Figure 6It is a partial cross-sectional view of the frame;

[0032] Figure 7 It is a structural diagram of the adjustment component;

[0033] Figure 8 for Figure 7 A partial enlarged view of point C;

[0034] Figure 9 It is a structural diagram of the decentralized mechanism;

[0035] Figure 10 for Figure 9 EE cross-sectional view;

[0036] Figure 11 for Figure 10 A partial enlarged view of point D;

[0037] Figure 12 for Figure 9 FF cross-sectional view;

[0038] Figure 13 A circuit diagram of the dispersed components.

[0039] In the figure: 1- bracket, 2- washing tank, 21- feed port, 22- water inlet, 23- discharge port, 3- drive motor, 4- transmission shaft, 5- dispersion mechanism, 51- connecting block, 511- arc groove, 512- contact, 52- frame, 521- rotating shaft, 522- slide groove, 523- movable groove, 53- variable component, 531- fixed net, 532- moving net, 54- detection component, 541- protective shell, 542- force rod, 543- varistor, 55- dispersion component, 551- connecting column, 552- arc slider, 553- resistance rod, 554- arc spring, 555- fixed electromagnet, 556- repelling magnet, 557- moving block, 558- support spring, 559- ultrasonic disperser, 56- adjusting component, 561- adjusting electromagnet, 562- attraction block, 563- adjusting spring. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example: Figures 1-13As shown, the present application provides a fly ash dechlorination treatment device with multi-stage water washing function technical scheme, the fly ash dechlorination treatment device includes support 1, water washing tank 2, drive motor 3, transmission shaft 4 and dispersion mechanism 5, water washing tank 2 is fastened with support 1, drive motor 3 is fastened with water washing tank 2, the output end of drive motor 3 is transmission connected with transmission shaft 4, dispersion mechanism 5 is fastened with transmission shaft 4, dispersion mechanism 5 is used to stir fly ash, and dispersion mechanism 5 is arranged with several groups on transmission shaft 4.

[0042] Support 1 provides stable working environment for the fly ash dechlorination treatment device, first, the fly ash needing water washing is added into water washing tank 2, then clean water is added into water washing tank 2 for cleaning, drive motor 3 is started, the torque is output to transmission shaft 4, and then transmission shaft 4 is driven to rotate, so that dispersion mechanism 5 fixed on transmission shaft 4 is driven to act, dispersion mechanism 5 is in the form of blade, can stir the fly ash and water mixture in water washing tank 2, so that the fly ash and water are stirred uniformly, so as to promote the precipitation of chloride salt.

[0043] Dispersion mechanism 5 includes connecting block 51, frame 52, variable assembly 53, detection assembly 54 and dispersion assembly 55, connecting block 51 is fastened with transmission shaft 4, frame 52 is rotationally connected with connecting block 51, variable assembly 53 is fastened with frame 52, variable assembly 53 is used to collect fly ash agglomerates, detection assembly 54 is fastened with frame 52, detection assembly 54 is electrically connected with variable assembly 53, detection assembly 54 is used to detect the size of fly ash agglomerates, and dispersion assembly 55 is fastened with frame 52, and dispersion assembly 55 is used to disperse fly ash agglomerates.

[0044] Because the particle diameter of fly ash is very small, the distance between particles is extremely short, and the van der Waals force between particles is much larger than the gravity of particles. Therefore, fly ash particles often attract and agglomerate each other during the water washing process, and the fly ash agglomerates are treated by dispersion mechanism 5; connecting block 51 is used to fix dispersion mechanism 5 on transmission shaft 4, frame 52 is used to provide installation basis for variable assembly 53, because the impact force of fly ash agglomerates of different sizes is different, the greater the fly ash agglomerates, the greater the impact force on detection assembly 54, and the size of the mesh hole on variable assembly 53 is controlled by detecting the size of the impact force.

[0045] The connecting block 51 is provided with an arc-shaped slot 511, the frame 52 is provided with a rotating shaft 521 close to the connecting block 51, the rotating shaft 521 is rotationally connected with the connecting block 51, the dispersion assembly 55 comprises a connecting column 551, an arc-shaped sliding block 552, a resistance stick 553 and an arc-shaped spring 554, the connecting column 551 is fixedly connected with the rotating shaft 521, the arc-shaped sliding block 552 is fixedly connected with the connecting column 551, the arc-shaped sliding block 552 is slidably connected with the arc-shaped slot 511, the resistance stick 553 is fixedly connected with the arc-shaped sliding block 552, the resistance stick 553 is arranged on both sides of the arc-shaped sliding block 552, one end of the arc-shaped spring 554 is fixedly connected with the resistance stick 553, and the other end of the arc-shaped spring 554 is fixedly connected with the inner wall of the arc-shaped slot 511, and two contacts 512 are symmetrically arranged on the arc-shaped slot 511 and electrically connected with the resistance stick 553.

[0046] During stirring, the distribution position of the fly ash agglomerates in the water washing tank 2 is uneven, and during rotation of the dispersion mechanism 5, the fly ash agglomerates can fall on the upper half, the middle part or the lower half of the variable assembly 53, because the rotating shaft 521 is located at the midpoint of the frame 52, when the fly ash agglomerates are located on the upper half of the variable assembly 53, under the influence of the weight of the fly ash agglomerates, the frame 52 will be deflected to one side with the rotating shaft 521 as the center, under the drive of the connecting column 551, the arc-shaped sliding block 552 will be deflected to one side along the arc-shaped slot 511, the resistance stick 553 on the same side will contact the contact 512, the circuit is connected, and the higher the position of the fly ash agglomerates on the upper half of the variable assembly 53, the longer the distance of the resistance stick 553 deflected to one side under the lever action, the shorter the distance of the current flowing through the resistance stick 553, and the smaller the relative resistance of the resistance stick 553, that is, the higher the position of the fly ash agglomerates on the variable assembly 53, the smaller the relative resistance of the resistance stick 553, and the larger the current flowing in the circuit, and vice versa; when the fly ash agglomerates are located on the middle part of the variable assembly 53, the frame 52 does not deflect, the resistance stick 553 cannot contact the contact 512, and the circuit is not connected.

[0047] The dispersion assembly 55 further comprises a fixed electromagnet 555, a repelling magnet 556, a moving block 557, a supporting spring 558 and an ultrasonic disperser 559, the frame 52 is further provided with a sliding groove 522, the fixed electromagnet 555 is fixedly connected with the sliding groove 522, the repelling magnet 556 is fixedly connected with the moving block 557, the repelling magnet 556 is oppositely arranged with the fixed electromagnet 555, the moving block 557 is slidably connected with the sliding groove 522, one end of the supporting spring 558 is fixedly connected with the moving block 557, the other end of the supporting spring 558 is fixedly connected with the inner wall of the sliding groove 522, and the ultrasonic disperser 559 is fixedly connected with the moving block 557.

[0048] When the fly ash agglomerate is located in the upper half of the variable assembly 53: the opposite ends of the fixed electromagnet 555 and the repelling magnet 556 are of different magnetic poles;

[0049] When the fly ash agglomerate is located in the lower half of the variable assembly 53: the opposite ends of the fixed electromagnet 555 and the repelling magnet 556 are of the same magnetic poles.

[0050] When the fly ash agglomerate is located in the middle part of the variable assembly 53, the frame 52 does not deflect, the resistance rod 553 does not contact the contact 512, the circuit is not connected, and the fixed electromagnet 555 is not powered. At this time, the moving block 557 is located in the middle position of the sliding groove 522 under the support of the supporting spring 558, and the ultrasonic disperser 559 is also located in the middle position, so as to carry out point dispersion on the fly ash agglomerate located in the middle part of the variable assembly 53. When the fly ash agglomerate is located in the upper half of the variable assembly 53, the negative pole of the power supply in the circuit is connected to the fixed electromagnet 555 at this time, that is, the opposite ends of the fixed electromagnet 555 and the repelling magnet 556 are of different magnetic poles. Under the action of the magnetic force, the moving block 557 is driven by the repelling magnet 556 to move upward along the sliding groove 522, and the supporting spring 558 is stretched under the force. The farther the fly ash agglomerate is located in the variable assembly 53, the smaller the relative resistance of the resistance rod 553, the greater the current flowing in the circuit, the greater the current transmitted to the fixed electromagnet 555, the greater the magnetic force of the fixed electromagnet 555, and the longer the distance of the moving block 557 moving along the sliding groove 522. The ultrasonic disperser 559 fixed with the moving block 557 is moved upward by a longer distance. When the fly ash agglomerate is located in the lower half of the variable assembly 53, the positive pole of the power supply in the circuit is connected to the fixed electromagnet 555 at this time, that is, the opposite ends of the fixed electromagnet 555 and the repelling magnet 556 are of the same magnetic poles. Under the action of the magnetic force, the moving block 557 is driven by the repelling magnet 556 to move downward along the sliding groove 522, and the supporting spring 558 is compressed under the force. The farther the fly ash agglomerate is located in the variable assembly 53, the smaller the relative resistance of the resistance rod 553, the greater the current flowing in the circuit, the greater the current transmitted to the fixed electromagnet 555, the greater the magnetic force of the fixed electromagnet 555, and the longer the distance of the moving block 557 moving along the sliding groove 522. The ultrasonic disperser 559 fixed with the moving block 557 is moved downward by a longer distance. That is, the position of the ultrasonic disperser 559 is automatically adjusted according to the position of the fly ash agglomerate in the variable assembly 53, and the point dispersion of the fly ash agglomerate is realized.

[0051] The variable assembly 53 comprises a fixed net 531 and a movable net 532, the frame 52 is provided with a movable slot 523, the fixed net 531 is in fastening connection with the frame 52, the fixed net 531 is located on the water-facing surface of the dispersing mechanism 5, the movable net 532 is in sliding connection with the movable slot 523, the movable slot 523 is provided with an adjusting assembly 56, the adjusting assembly 56 is in electrical connection with the detection assembly 54, the adjusting assembly 56 is used for adjusting the position of the movable net 532, and the fixed net 531 and the movable net 532 are both provided with mesh holes.

[0052] In the initial state, the mesh holes on the fixed net 531 and the movable net 532 coincide, at this time, the relative mesh hole diameter is maximum, and a large volume of fly ash agglomerates can be intercepted, but as the fly ash agglomerates are dispersed, the volume of the agglomerates will gradually decrease, and the fly ash agglomerates with small diameters can directly pass through the mesh holes and cannot be intercepted on the fixed net 531, the relative position between the movable net 532 and the fixed net 531 is adjusted by the adjusting assembly 56, so that the size of the relative mesh holes between the two is adjusted, and the fly ash agglomerates with small diameters are captured.

[0053] The detection assembly 54 comprises a protective shell 541, a force rod 542 and a pressure-sensitive resistor 543, the protective shell 541 is in fastening connection with the frame 52, the force rod 542 is in rotational connection with the protective shell 541, one end of the pressure-sensitive resistor 543 is in fastening connection with the inner wall of the protective shell 541, the detection end of the pressure-sensitive resistor 543 is in abutment with the force rod 542, and the pressure-sensitive resistor 543 is in electrical connection with the adjusting assembly 56.

[0054] In the initial stage of dispersion, the volume of the fly ash agglomerates is large, and the weight is large; when the dispersing mechanism 5 rotates and stirs in the water washing tank 2, the fly ash agglomerates will drive the force rod 542 in the protective shell 541 to deflect to the other side when colliding with the part of the force rod 542 extending outside the protective shell 541, so as to compress the pressure-sensitive resistor 543, and as the volume of the fly ash agglomerates gradually decreases during the dispersion process, the pressure on the pressure-sensitive resistor 543 is smaller, the resistance value of the pressure-sensitive resistor 543 is smaller, and the current transmitted to the adjusting assembly 56 is larger.

[0055] The adjusting assembly 56 comprises an adjusting electromagnet 561, an attracting block 562 and an adjusting spring 563, the adjusting electromagnet 561 is in fastening connection with the inner wall of the movable slot 523, the attracting block 562 is arranged opposite to the adjusting electromagnet 561, the attracting block 562 is in fastening connection with the movable net 532, the attracting block 562 is made of ferromagnetic material, one end of the adjusting spring 563 is in fastening connection with the inner wall of the movable slot 523, and the other end of the adjusting spring 563 is in fastening connection with the movable net 532.

[0056] Because the smaller the volume of fly ash agglomerates, the greater the current delivered by the piezoresistor 543 to the regulating electromagnet 561, the greater the magnetic force of the regulating electromagnet 561, the greater the attraction force of the attracting block 562, and the farther the distance of the moving net 532 moving along the active slot 523 to the side of the regulating electromagnet 561, so that the area of the mesh on the moving net 532 coinciding with the mesh on the fixed net 531 decreases, and the relative mesh diameter between the two decreases, that is, the size of the mesh on the variable assembly 53 is automatically adjusted according to the volume of the fly ash agglomerates to capture fly ash agglomerates of different sizes.

[0057] The water washing tank 2 is provided with a feed inlet 21, a water inlet 22 and a discharge outlet 23, and the water inlet 22 is connected with a water source.

[0058] The fly ash that needs to be washed is added into the water washing tank 2 through the feed inlet 21, and the cleaning water is added through the water inlet 22, and the discharge outlet 23 is used to discharge the fly ash after washing for subsequent processing. The water washing tank 2 can be arranged in multiple groups to realize multi-stage water washing of the fly ash, thereby improving the removal effect of chlorides.

[0059] The working principle of the present application is as follows: during the stirring process, the distribution position of the fly ash agglomerates in the water washing tank 2 is uneven, and the fly ash agglomerates can fall on the upper half, the middle part or the lower half of the variable assembly 53 during the rotation of the dispersion mechanism 5. When the fly ash agglomerates are located in the middle part of the variable assembly 53, the frame 52 does not deflect, the contact 512 cannot be contacted by the electric resistance rod 553, the circuit is not connected, the fixed electromagnet 555 is not powered, the moving block 557 is located in the middle position of the sliding groove 522 under the support of the supporting spring 558, and the ultrasonic disperser 559 is also located in the middle position, so that the fly ash agglomerates located in the middle part of the variable assembly 53 are dispersed. When the fly ash agglomerates are located in the upper half of the variable assembly 53, the negative pole of the power supply in the circuit is connected to the fixed electromagnet 555 at this time, that is, the opposite ends of the fixed electromagnet 555 and the repelling magnet 556 are opposite poles, under the action of the magnetic force, the moving block 557 is driven by the repelling magnet 556 to move upward along the sliding groove 522, the supporting spring 558 is stretched under the force, and the higher the position of the fly ash agglomerates in the variable assembly 53, the smaller the relative resistance of the electric resistance rod 553, the greater the current flowing in the circuit, the greater the current transmitted to the fixed electromagnet 555, the greater the magnetic force of the fixed electromagnet 555, and the longer the distance of the moving block 557 moving upward along the sliding groove 522, and the longer the distance of the ultrasonic disperser 559 fixed with the moving block 557 moving upward. When the fly ash agglomerates are located in the lower half of the variable assembly 53, the positive pole of the power supply in the circuit is connected to the fixed electromagnet 555 at this time, that is, the opposite ends of the fixed electromagnet 555 and the repelling magnet 556 are same poles, under the action of the magnetic force, the moving block 557 is driven by the repelling magnet 556 to move downward along the sliding groove 522, the supporting spring 558 is compressed under the force, and the lower the position of the fly ash agglomerates in the variable assembly 53, the smaller the relative resistance of the electric resistance rod 553, the greater the current flowing in the circuit, the greater the current transmitted to the fixed electromagnet 555, the greater the magnetic force of the fixed electromagnet 555, and the longer the distance of the moving block 557 moving downward along the sliding groove 522, and the longer the distance of the ultrasonic disperser 559 fixed with the moving block 557 moving downward. That is, the position of the ultrasonic disperser 559 is automatically adjusted according to the position of the fly ash agglomerates in the variable assembly 53.

[0060] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims in any way.

Claims

1. A fly ash dechlorination treatment device with multi-stage water washing function, characterized in that: The fly ash dechlorination treatment device comprises a support (1), a water washing tank (2), a driving motor (3), a transmission shaft (4) and a dispersion mechanism (5), the water washing tank (2) is fastened to the support (1), the driving motor (3) is fastened to the water washing tank (2), the output end of the driving motor (3) is in transmission connection with the transmission shaft (4), and the dispersion mechanism (5) is fastened to the transmission shaft (4); the dispersion mechanism (5) is used for stirring fly ash, and a plurality of groups of the dispersion mechanism (5) are arranged on the transmission shaft (4); The dispersion mechanism (5) comprises a connecting block (51), a frame (52), a variable assembly (53), a detection assembly (54) and a dispersion assembly (55), the connecting block (51) is fastened to the transmission shaft (4), the frame (52) is rotationally connected to the connecting block (51), the variable assembly (53) is fastened to the frame (52), and the variable assembly (53) is used for collecting fly ash agglomerates; the detection assembly (54) is fastened to the frame (52), the detection assembly (54) is electrically connected to the variable assembly (53), and the detection assembly (54) is used for detecting the size of the fly ash agglomerates; and the dispersion assembly (55) is fastened to the frame (52), and the dispersion assembly (55) is used for dispersing the fly ash agglomerates; An arc-shaped groove (511) is arranged in the connecting block (51), one side of the frame (52) close to the connecting block (51) is provided with a rotating shaft (521), the rotating shaft (521) is rotationally connected to the connecting block (51), the dispersion assembly (55) comprises a connecting column (551), an arc-shaped sliding block (552), a resistance rod (553) and an arc-shaped spring (554), the connecting column (551) is fastened to the rotating shaft (521), the arc-shaped sliding block (552) is fastened to the connecting column (551), the arc-shaped sliding block (552) is in sliding connection with the arc-shaped groove (511), the resistance rod (553) is fastened to the arc-shaped sliding block (552), the resistance rod (553) is arranged on both sides of the arc-shaped sliding block (552), one end of the arc-shaped spring (554) is fastened to the resistance rod (553), and the other end of the arc-shaped spring (554) is fastened to the inner wall of the arc-shaped groove (511); and two contact points (512) are symmetrically arranged on the arc-shaped groove (511), and the two contact points (512) are electrically connected to the resistance rod (553) respectively. The dispersion assembly (55) further comprises a fixed electromagnet (555), a repelling magnet (556), a moving block (557), a supporting spring (558) and an ultrasonic disperser (559), the frame (52) is further provided with a sliding groove (522), the fixed electromagnet (555) is in fastening connection with the sliding groove (522), the repelling magnet (556) is in fastening connection with the moving block (557), the repelling magnet (556) is oppositely arranged with the fixed electromagnet (555), the moving block (557) is in sliding connection with the sliding groove (522), one end of the supporting spring (558) is in fastening connection with the moving block (557), the other end of the supporting spring (558) is in fastening connection with the inner wall of the sliding groove (522), the ultrasonic disperser (559) is in fastening connection with the moving block (557), and the output end of the ultrasonic disperser (559) faces the variable assembly (53). When the fly ash agglomerate is located in the upper half of the variable assembly (53), the opposite ends of the fixed electromagnet (555) and the repelling magnet (556) are opposite poles. When the fly ash agglomerate is located in the lower half of the variable assembly (53), the opposite ends of the fixed electromagnet (555) and the repelling magnet (556) are same poles.

2. The fly ash dechlorination treatment device with multi-stage water washing function according to claim 1, characterized in that: The variable assembly (53) comprises a fixed net (531) and a moving net (532), the frame (52) is provided with a movable groove (523), the fixed net (531) is in fastening connection with the frame (52), and the fixed net (531) is located on the water-facing surface of the dispersion mechanism (5), the moving net (532) is in sliding connection with the movable groove (523), the movable groove (523) is provided with an adjusting assembly (56), the adjusting assembly (56) is in electrical connection with the detection assembly (54), the adjusting assembly (56) is used for adjusting the position of the moving net (532), and the fixed net (531) and the moving net (532) are both provided with mesh holes.

3. The fly ash dechlorination treatment device with multi-stage water washing function according to claim 2, characterized in that: The detection assembly (54) comprises a protective shell (541), a stress rod (542) and a piezoresistor (543), the protective shell (541) is in fastening connection with the frame (52), the stress rod (542) is in rotary connection with the protective shell (541), one end of the piezoresistor (543) is in fastening connection with the inner wall of the protective shell (541), the detection end of the piezoresistor (543) is in abutment with the stress rod (542), and the piezoresistor (543) is in electrical connection with the adjusting assembly (56).

4. The fly ash dechlorination treatment device with multi-stage water washing function according to claim 3, characterized in that: The adjusting assembly (56) comprises an adjusting electromagnet (561), an attracting block (562) and an adjusting spring (563), the adjusting electromagnet (561) is in fastening connection with the inner wall of the movable groove (523), the attracting block (562) is oppositely arranged with the adjusting electromagnet (561), the attracting block (562) is in fastening connection with the moving net (532), the attracting block (562) is made of ferromagnetic material, one end of the adjusting spring (563) is in fastening connection with the inner wall of the movable groove (523), and the other end of the adjusting spring (563) is in fastening connection with the moving net (532).

5. The fly ash dechlorination treatment device with multi-stage water washing function according to claim 1, characterized in that: The water washing tank (2) is provided with a feeding port (21), a water inlet (22) and a discharging port (23), and the water inlet (22) is connected with a water source.

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