CN211445482U - Ceramic sludge treatment system - Google Patents

Abstract

The utility model discloses a ceramic sludge treatment system. The system further comprises a crushing and screening device, a stirring and mixing device and a drying device, which are arranged in sequence according to the sludge treatment sequence. The ceramic sludge block is crushed and sieved. The stirring and mixing device is provided with a dry powder feeding mechanism. The dry powder feeding mechanism is used to add oxidant dry powder to the crushed ceramic sludge. The drying device includes an ultrasonic generating mechanism and a microwave. Generator, the drying device is used to remove the moisture in the ceramic sludge and destroy the flocculant. The ceramic sludge treatment system provided by the utility model can realize multiple process steps such as flocculation and dehydration, dispersion, drying and surface modification of the ceramic sludge, and the treated ceramic sludge becomes dispersed ceramic fine powder particles containing water. The rate is low and can be directly used for making building materials.

Description

A ceramic sludge treatment system

technical field

The utility model relates to the technical field of sludge treatment, in particular to a ceramic sludge treatment system.

Background technique

Ceramic sludge is the sludge produced in the polishing process in the ceramic production process. Its main components are a mixture of ceramic micropowder, grinding aid and water. The main components of ceramic micropowder are silicon dioxide and silicon carbide. Ceramic micropowder has the characteristics of small particle size and high hardness. The treated ceramic sludge can be used as a fine aggregate for building materials, or as a surface layer material for high-quality permeable blocks. However, in the prior art, due to the limitation of the treatment process, the ceramic polishing sludge is usually directly landfilled after flocculation, dehydration and drying, and the utilization value is low. There are also attempts to use it as a building material, such as for making concrete blocks. However, due to the backwardness of the ceramic polishing sludge treatment process, the treated ceramic sludge is easy to harden, the water content is high, and there is a flocculant. When such ceramic sludge is used as a building material, there are the following defects: 1. The moisture content of the ceramic sludge is still close to 40%. When it is used to make blocks, the water in the ceramic sludge will increase the water-cement ratio of the concrete, resulting in a low block strength; 2. Large pieces of compacted ceramic sludge When the mud is directly used to make building materials, the lumpy sludge will form mechanical weak points inside the building materials, resulting in low block strength; 3. There are polymer flocculants in the dehydrated ceramic sludge, which will affect the water content of the cement. It has an adverse effect on the formation of concrete blocks, which makes the early strength of concrete blocks poor, and ultimately affects the mechanical properties of concrete products.

It can be seen that the existing technology still needs to be improved and improved.

Utility model content

In view of the above-mentioned deficiencies of the prior art, the present invention provides a ceramic sludge treatment system, which aims to improve the treatment effect of the ceramic sludge and enhance the regeneration and utilization value of the ceramic sludge.

In order to achieve the above object, the utility model has adopted the following technical solutions:

A ceramic sludge treatment system, the system includes a flocculation device and a dehydration device, wherein the system further includes a crushing and screening device, a stirring and mixing device, and a drying device arranged in sequence according to the sludge treatment sequence, the crushing and screening device. The device is used to pulverize and sieve the dehydrated ceramic sludge block. The stirring and mixing device is provided with a dry powder feeding mechanism, and the dry powder feeding mechanism is used to add oxidant dry powder to the pulverized ceramic sludge. The device includes an ultrasonic generating mechanism and a microwave generator, and the drying device is used for removing moisture in the ceramic sludge and destroying the flocculant.

In the ceramic sludge treatment system, the drying device includes a sealed conveying channel, the ultrasonic generating mechanism includes an ultrasonic generator and an ultrasonic transducer, a conveying belt is arranged at the bottom of the conveying channel, and the inner wall of the conveying channel is Several ultrasonic transducers and several microwave generators are arranged on the upper part, and an ultrasonic generator is arranged outside the conveying channel, and the ultrasonic generator is electrically connected with the ultrasonic transducer.

In the ceramic sludge treatment system, the direction of movement of the conveyor belt is the rear, the ultrasonic transducers are evenly distributed on the side walls of the front 2/3 of the conveying channel, and the microwave generators are evenly distributed behind the conveying channel. 2/3 of the side wall section.

In the ceramic sludge treatment system, the rear end of the conveying channel is provided with a hot air inlet, the front end of the conveying channel is provided with a hot air outlet, and both the hot air inlet and the hot air outlet are provided with metal meshes to prevent microwave leakage.

In the ceramic sludge treatment system, the inner wall of the conveying channel is provided with a microwave shielding layer and a sound insulation layer.

In the ceramic sludge treatment system, the flocculation device includes a flocculation tank, the bottom of the flocculation tank is a conical structure, and a dosing mechanism is arranged above the flocculation tank.

In the ceramic sludge treatment system, the medicine dosing mechanism includes a medicine storage tank and a medicine addition pump arranged below the medicine storage tank.

In the ceramic sludge treatment system, the crushing and screening device includes a body and a crushing mechanism and a screening mechanism arranged in the body, the screening mechanism is arranged below the crushing mechanism, and the screening mechanism includes: Vibrating screen.

In the ceramic sludge treatment system, the pulverizing mechanism includes a blade, a rotating shaft, and a driving motor, the blade is fixedly connected to the rotating shaft, and the rotating shaft is drivingly connected to the driving motor.

In the ceramic sludge treatment system, the system is further provided with a control mechanism, and the control mechanism is respectively electrically connected with the flocculation device, the dehydration device, the crushing and screening device, the stirring and mixing device, and the drying device.

Beneficial effects:

The utility model provides a ceramic sludge treatment system. The system is provided with a flocculation device, a dehydration device, a crushing and screening device, a stirring and mixing device, and a drying device, so as to realize flocculation, dehydration, dispersion, drying, and drying of ceramic sludge. Surface modification and other process steps. The system can deeply dewater the ceramic sludge and destroy the flocculant molecular chain inside the ceramic sludge. The treated ceramic sludge is a dispersed ceramic micropowder with low moisture content and high regeneration value.

Description of drawings

Fig. 1 is the structural representation of the ceramic sludge treatment system provided by the utility model;

Fig. 2 is the structural representation of flocculation device;

Fig. 3 is the structural representation of crushing and sieving device;

Fig. 4 is the structural representation of stirring and mixing device;

5 is a schematic structural diagram of a drying device;

Figure 6 is a cross-sectional view of the delivery channel housing;

FIG. 7 is a schematic structural diagram of a preferred drying device.

Detailed ways

The present utility model provides a ceramic sludge treatment system. In order to make the purpose, technical scheme and effect of the present utility model clearer and clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

1-5, the present utility model provides a ceramic sludge treatment system, which includes a flocculation device 1, a dehydration device 2, a crushing and screening device 3, a stirring and mixing device 4, and a drying device 5, which are used to complete the ceramic sludge. The treatment process of sludge, the treatment process of ceramic sludge includes the following steps: (1) flocculation and sedimentation of ceramic sludge, by adding a flocculant, the suspended ceramic sludge is flocculated and precipitated to accelerate the separation of ceramic sludge and water (2) Dewatering of ceramic sludge, dewatering the flocculated and precipitated ceramic sludge to a moisture content of 30%-40%; (3) Pulverizing the dehydrated ceramic sludge, passing through a pulverizer and a sieving machine, dewatering the dehydrated The ceramic sludge block is crushed into fine particles; (4) Add oxidant dry powder, and mix the oxidant dry powder with granular ceramic sludge; (5) Flocculant chain scission and water removal, through ultrasonic, microwave The combined action of , hot air and oxidant destroys the long-chain molecules of the flocculant. Through the internal thermal effect of hot air and microwave, the water in the ceramic sludge is evaporated, and the ceramic micropowder with fine particles and good dispersibility is obtained.

As shown in Figure 2, the flocculation device includes a flocculation tank 1.1. A feed port A1.2 is provided on the side wall of the flocculation tank 1.1. The ceramic sludge enters the flocculation tank through the feed port. The bottom of the flocculation tank 1.1 It is a conical structure, a discharge port A1.3 is arranged at the bottom of the cone, and a dosing mechanism is provided above the flocculation tank near the feeding port A1.2. The dosing mechanism includes a drug storage tank 1.4 and a feeding The medicine pump 1.5, the medicine dosing pump 1.5 is a metering pump, and the flocculation tank is also provided with an agitator A1.6, which is used to more fully mix the ceramic sludge and the flocculant. During operation, the ceramic sludge enters the flocculation tank 1.1 through the feeding port A1.2. At the same time of feeding, the flocculant is added through the dosing mechanism. The coating sediment, when standing, sediments at the bottom of the flocculation tank, and then flows out from the discharge port A1.3. It should be noted that the agitator A1.6 is in the gap working mode, stirring is performed during the dosing, and stops when the dosing is completed, so that the ceramic sludge is fully precipitated.

Specifically, the dehydration device 2 includes a plate and frame type dehydration device and a stacked screw type dehydration device, both of which can achieve preliminary dehydration of the sludge, remove a large amount of pore water in the sludge, and facilitate subsequent drying treatment. Since both the plate and frame type dehydration device and the stacked screw type dehydration device are in the prior art, they will not be described in detail here. Preferably, the dehydration device is a plate-and-frame dehydration device, and the moisture content of the dehydrated ceramic sludge can be reduced to about 40%, which is convenient for subsequent drying treatment.

Specifically, as shown in FIG. 3, in the above-mentioned ceramic sludge treatment system, the crushing and screening device 3 includes a body 3.1, a hopper 3.2 is arranged on the body, and a crushing mechanism and a sieve are arranged in the body. The pulverizing mechanism includes a blade 3.3, a rotating shaft 3.4, and a drive motor 3.5 disposed outside the fuselage. The blade 3.3 is connected to the rotating shaft 3.4, and the rotating shaft 3.4 is connected to the drive motor 3.5. , the sieving mechanism is arranged below the crushing mechanism, including a vibrating screen 3.6, the body is also provided with a powder outlet 3.7, and the small particles of ceramic sludge sieved by the vibrating screen 3.6 are discharged from the powder outlet. outflow. Since the ceramic sludge from the plate-and-frame dehydrator forms a plate structure during dehydration, it is not conducive to the subsequent further dehydration treatment and de-flocculant treatment. The blocks are crushed and sieved to improve the efficiency of subsequent dehydration and facilitate mixing with oxidants.

Specifically, as shown in FIG. 4 , the stirring and mixing device 4 includes a shell 4.1, and a feed port B4.2 is provided above the shell 4.1, and the feed port B4.2 passes through the conveyor belt A (not shown) It is communicated with the powder outlet 3.7 of the crushing and sieving device 3. The shell 4.1 is provided with an agitator B4.4. The top of the shell 4.1 is provided with a dry powder feeding mechanism. The dry powder feeding mechanism includes a storage tank 4.5 and a The on-off valve A4.6 at the bottom of the material tank is also provided with a discharge port B4.7 at the bottom of the shell, and the discharge port B4.7 is provided with an on-off valve B4.8. When stirring and mixing, the on-off valve B4.7. 8 is closed. When the stirring is completed, the on-off valve B4.8 is opened, and the ceramic sludge particles mixed with the oxidant enter the drying device 5 from the discharge port B4.7. The stirring and mixing device 4 is mainly used for adding an oxidant and fully mixing the oxidant with the ceramic sludge particles, so as to facilitate the subsequent chain scission treatment of the flocculant.

Specifically, as shown in FIG. 5 , the drying device 5 includes a sealed conveying channel 5.1, several ultrasonic generating mechanisms and several microwave generators 5.3. The bottom of the conveying channel 5.1 is provided with a conveying belt B5.4, one end of the conveying channel 5.1 is the input end, and the other end is the output end (the direction indicated by the arrow in the figure is the moving direction of the conveying belt, and the moving direction of the conveying belt is the rear. ), there is a feeding port C5.5 above the input end, and the discharge port B4.7 of the stirring and mixing device is directly above the feeding port C5.5, and the ceramic sludge falling from the discharging port B4.7 The particles just fall on the conveyor belt B5.4, and gradually move backward with the movement of the conveyor belt B5.4; the input end of the conveying channel 5.1 is also provided with a hot air outlet 5.7, and the hot air outlet 5.7 discharges the gas through the exhaust pipe , the output end of the conveying channel 5.1 is provided with a hot air inlet 5.6, the hot air inlet 5.6 is connected to the exhaust port of the ceramic kiln through a pipeline, and the waste heat of the kiln ventilation in the ceramic production line is used to dry the ceramic sludge. The hot air inlet 5.6 Both the hot air outlet 5.7 and the hot air outlet 5.7 are provided with a metal mesh 5.9 to prevent the leakage of microwaves in the conveying channel; the ultrasonic generating mechanism includes an ultrasonic transducer 5.8 and an ultrasonic generator 5.2, and the ultrasonic On the inner side wall, the ultrasonic generator 5.2 is arranged on the outside of the conveying channel 5.1, and the ultrasonic transducer 5.8 is electrically connected with the ultrasonic generator 5.2; the microwave generator 5.3 is also arranged on the inner side wall, and the ultrasonic transducer The generator 5.8 is spaced apart from the microwave generator 5.3.

As a preferred embodiment, as shown in FIG. 7 , the ultrasonic transducers are evenly distributed on the sidewall of the first 2/3 section of the conveying channel, and the microwave generators are evenly distributed on the rear 2/3 section of the conveying channel on the side wall section. This is because the drying process of ceramic sludge is that with the advancement of the conveyor belt, the moisture content of the sludge gradually decreases. However, too much water in the sludge will consume microwave energy and reduce the effect of microwave. Therefore, the ultrasonic transducer is arranged on the side wall of the first 2/3 section of the conveying channel, so that in the early stage of drying, ultrasonic waves are mainly used to act on the ceramic sludge, and the combination of ultrasonic waves and oxidants promotes the degradation of the flocculant. The microwave generator is arranged on the side wall of the rear 2/3 section of the conveying channel to treat the sludge that has been relatively dry on the outside, so that the thermal effect of the microwave from the inside to the outside can play a better role, so as to ensure the overall treatment effect. energy consumption is reduced.

Preferably, as shown in FIG. 6 , the outer shell 6 of the transport channel is a metal shell, and the inner wall of the transport channel is provided with a microwave shielding layer 7 and a sound insulation layer 8 , the microwave shielding layer 7 is a metal layer, and the microwave shielding layer and Heat-resistant sound-absorbing material is filled between the shells to form a sound insulation layer 8 . The main function of the microwave shielding layer is to make the microwave energy pass through the reflection of the metal, which can better produce the pyrolysis effect on the ceramic sludge, and at the same time prevent the leakage of the microwave and cause radiation to the human body. In addition, larger noise is formed.

When the drying device of the above structure works, the hot air is blown in from the output end of the conveying channel, which plays the role of evaporating away the water in the ceramic sludge. At the same time, the ultrasonic wave generated by the ultrasonic transducer can promote the flocculation in the ceramic sludge. agent degradation, improve the efficiency and ease of dispersibility of sludge drying. The microwave generated by the microwave generator heats the ceramic sludge from the inside out, which promotes the dispersion of the ceramic sludge and accelerates the evaporation of water in the ceramic sludge.

Further, in the drying device of the above structure, since the hot air flow direction is opposite to the sludge conveying direction, the drier sludge at the rear end can be fully contacted with the drier hot air at the hot air inlet at the rear end of the transmission device, thereby improving the sludge drying efficiency. , reduce the moisture content of the final ceramic powder. The microwave can quickly penetrate the ceramic sludge and heat the internal water of the sludge from the inside out, so that the interstitial water and the bound water between the ceramic particles overflow to the outside, and are then taken away by the hot air.

Further, the drying device of the above structure can make the flocculant of the polymer chain rapidly degrade and break into short-chain molecules under the triple action of ultrasonic waves, oxidants and heat radiation, so that the flocculated and aggregated ceramic sludge can be dispersed into ceramic sludge. particles. In addition, the short-chain flocculant molecules with the same charge after the fracture are adsorbed on the ceramic particles, so that the ceramic particles are charged with the same charge, which reduces the force between the ceramic particles and the water molecules, and promotes the gap between the ceramic sludge particles. Water and bound moisture evaporate more easily. At the same time, the ceramic particles with the same charge realize the disintegration of the ceramic sludge mass and the relative dispersion of the ceramic particles through the electrostatic repulsion and the thermal effect of the microwave from the inside to the outside. Under the multiple actions of ultrasonic wave, oxidant, high-frequency microwave radiation and hot air drying, the ceramic sludge with high water content can be quickly dried to obtain dispersed ceramic micropowder particles.

The ceramic sludge treatment system of the above structure is also provided with a control mechanism, which is electrically connected to the flocculation device 1, the dehydration device 2, the crushing and screening device 3, the stirring and mixing device 4, and the drying device 5, respectively, for controlling The flocculation device, dehydration device, crushing and screening device, stirring and mixing device, and drying device are turned on and off, and the addition of flocculant and oxidant is controlled at the same time, as well as the rotation speed of each stirrer, the frequency of ultrasonic generator, and the microwave generator. Frequency of. The set control mechanism can realize fully automatic control of the ceramic sludge treatment system, which greatly improves the production efficiency and production safety.

The utility model provides a ceramic sludge treatment system, which realizes flocculation-preliminary dehydration-crushing and sieving-adding oxidant- The ceramic sludge treatment process of deep dewatering and flocculant destruction, the treated ceramic sludge becomes dispersed particles with low moisture content and high utilization value.

It can be understood that, for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions of the present invention and the concept thereof, and all these changes or replacements should belong to the protection scope of the appended claims of the present invention. .

Claims (10)

1. The utility model provides a ceramic sludge treatment system, the system includes flocculation device and dewatering device, a serial communication port, the system still includes the crushing device, stirring mixing arrangement, the drying device that sieve that set gradually according to sludge treatment order, the crushing device that sieves is used for smashing, sieves the ceramic sludge piece after the dehydration, stirring mixing arrangement is equipped with dry powder feeding mechanism, dry powder feeding mechanism is arranged in adding oxidant dry powder to the ceramic sludge after smashing, drying device includes ultrasonic wave generation mechanism and microwave generator, drying device is arranged in getting rid of the moisture in the ceramic sludge and destroys the flocculating agent.

2. The ceramic sludge treatment system of claim 1, wherein the drying device comprises a sealed conveying channel, the ultrasonic generation mechanism comprises an ultrasonic generator and an ultrasonic transducer, a conveying belt is arranged at the bottom of the conveying channel, a plurality of ultrasonic transducers and a plurality of microwave generators are distributed on the inner side wall of the conveying channel, the ultrasonic generator is arranged outside the conveying channel, and the ultrasonic generator is electrically connected with the ultrasonic transducers.

3. The ceramic sludge treatment system of claim 2, wherein the ultrasonic transducers are evenly distributed on the side wall of the front 2/3 section of the conveying passage and the microwave generators are evenly distributed on the side wall section of the rear 2/3 section of the conveying passage with the direction of the movement of the conveying belt as the rear.

4. The ceramic sludge treatment system of claim 3, wherein the rear end of the conveying channel is provided with a hot air inlet, the front end of the conveying channel is provided with a hot air outlet, and the hot air inlet and the hot air outlet are both provided with metal meshes for preventing microwave leakage.

5. The ceramic sludge treatment system of claim 2 wherein the inner wall of the transfer passage is provided with a microwave shielding layer and a sound insulating layer.

6. The ceramic sludge treatment system of claim 1, wherein the flocculation device comprises a flocculation tank, the bottom of the flocculation tank is of a conical structure, and a dosing mechanism is arranged above the flocculation tank.

7. The ceramic sludge treatment system of claim 6, wherein the dosing mechanism comprises a drug storage tank and a dosing pump disposed below the drug storage tank.

8. The ceramic sludge treatment system of claim 1, wherein the pulverizing and sieving device comprises a body, and a pulverizing mechanism and a sieving mechanism arranged in the body, wherein the sieving mechanism is arranged below the pulverizing mechanism, and the sieving mechanism comprises a vibrating screen.

9. The ceramic sludge treatment system of claim 8, wherein the crushing mechanism comprises a blade, a rotating shaft and a driving motor, the blade is fixedly connected with the rotating shaft, and the rotating shaft is in transmission connection with the driving motor.

10. The ceramic sludge treatment system of claim 1, wherein the system is further provided with a control mechanism, and the control mechanism is electrically connected with the flocculation device, the dehydration device, the crushing and sieving device, the stirring and mixing device and the drying device respectively.

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