A desulfurization wastewater sludge treatment device

Abstract

The application discloses a desulfurization wastewater sludge treatment device, and relates to the technical field of environmental protection equipment, which comprises a base, a conveying chamber, a dewatering chamber, a driving mechanism and other components. A spiral power component is arranged in the conveying chamber and the dewatering chamber, and the conveying and extrusion dewatering of sludge are realized under the driving of the driving mechanism. The dewatering chamber adopts a double-layer structure, an outer heat preservation cover reduces heat loss, and an inner dewatering chamber cooperates with an electric heating element to improve the dewatering effect. Water is discharged through a drain pipe, and water vapor is extracted by a steam pump. The device is also provided with an auxiliary dewatering component driven by an electromagnet, which can break the compact structure of sludge through reciprocating motion, thereby enhancing the dewatering effect and cleaning the surface sludge of the spiral power component. The device integrates the functions of conveying, heating, extrusion and soil crushing, has high dewatering efficiency, low energy consumption, stable and reliable operation, and is suitable for efficient treatment of desulfurization wastewater sludge.

Description

Technical Field

[0001] This invention relates to the field of environmental protection equipment technology, and more specifically, to a desulfurization wastewater sludge treatment device. Background Technology

[0002] In industrial sectors such as coal-fired power plants and steel mills, desulfurization is a crucial step in controlling sulfur dioxide emissions. However, the wastewater generated during desulfurization contains large amounts of suspended solids, heavy metal ions, and sulfates, which can cause serious environmental damage if not properly treated. Desulfurization wastewater sludge, a byproduct of desulfurization wastewater treatment, is characterized by high water content, complex composition, and a tendency to clump, making its treatment and disposal a persistent challenge in the field of industrial waste management.

[0003] Traditional methods for treating sludge from desulfurization wastewater mainly include natural drying, filter press dewatering, and centrifugal dewatering. Among these, filter press dewatering is the most widely used. However, filter press dewatering requires frequent replacement of filter cloth, resulting in high energy consumption and low dewatering efficiency. Especially for highly viscous sludge, problems such as filter cloth clogging and difficulty in sludge cake removal are prone to occur. In addition, the large pressure applied to the sludge during the filter press process may cause the sludge to clump together and become overly compacted, which in turn prevents the residual water inside from being discharged in time, resulting in poor dewatering effect and even requiring secondary treatment in subsequent processes. Summary of the Invention

[0004] The purpose of this invention is to provide a desulfurization wastewater sludge treatment device to solve the above-mentioned problems.

[0005] To achieve the above objectives, an embodiment of the present invention provides the following technical solution:

[0006] A desulfurization wastewater sludge treatment device includes a base, a conveying chamber, a dewatering chamber, and a drive mechanism. A support base is fixedly installed on the upper end of the base. The conveying chamber is fixedly installed on the support base and has a connected feed inlet fixedly installed on the upper end of the conveying chamber. The dewatering chamber is fixedly installed on the support base and is connected to the conveying chamber. A screw drive component is rotatably installed in both the dewatering chamber and the conveying chamber. A sludge discharge outlet is fixedly installed at the end of the dewatering chamber away from the conveying chamber. A drain pipe is fixedly installed at the lower end of the dewatering chamber. The drive mechanism is fixedly installed on the base and is used to drive the screw drive component to rotate.

[0007] As a further improvement of the present invention, the dehydration chamber includes an outer heat insulation cover and an inner dehydration chamber. A connected water collection cover is fixedly installed at the lower end of the outer heat insulation cover, and a drain pipe is fixedly installed at the lower end of the water collection cover. The upper and lower ends of the inner dehydration chamber are respectively provided with an exhaust hole and a drain hole. Filter cloth is fixedly connected inside the exhaust hole and the drain hole. The outer heat insulation cover serves to isolate the outside environment and prevent heat leakage. The inner dehydration chamber is used to press and dehydrate the sludge in conjunction with the spiral power component. The squeezed water is filtered through the drain hole and collected in the water collection cover, while water vapor, due to its lower density, rises and enters the inner space of the outer heat insulation cover from the exhaust hole.

[0008] As a further improvement of the present invention, multiple electric heating elements are fixedly installed at the outer end of the inner dehydration chamber, and a steam pump is fixedly installed at the upper end of the outer insulation cover. The air inlet of the steam pump is connected to the upper end of the outer insulation cover through a pipe. The inner dehydration chamber can be directly heated by the electric heating elements. Combined with the extrusion of the spiral power component, the dehydration effect can be significantly improved. The steam pump can quickly discharge water vapor.

[0009] As a further improvement of the present invention, multiple electromagnetic drive seats are fixedly installed on the outer end of the outer heat insulation cover, and multiple auxiliary dewatering components corresponding to the electromagnetic drive seats are fixedly installed on the inner side wall of the outer heat insulation cover. Multiple through holes corresponding to the auxiliary dewatering components are opened on the inner dewatering chamber, and the auxiliary dewatering components pass through the through holes and extend into the inner side of the inner dewatering chamber. The electromagnetic drive seat can trigger the auxiliary dewatering components to break up the soil inside the inner dewatering chamber through the magnetic field, which facilitates the discharge of water and prevents the water inside from being unable to be discharged due to the sludge being squeezed too densely. Combined with the spiral power component to form an intermittent squeezing-breaking and loosening state of the sludge, the drainage effect of the sludge can be significantly improved.

[0010] As a further improvement of the present invention, the auxiliary dewatering component includes a hollow control seat fixedly installed inside the outer insulation cover. A matching inner push rod is slidably installed inside the hollow control seat. A magnetic collar is fixedly installed at the outer end of the inner push rod. A soil-breaking ball is fixedly installed at the end of the inner push rod away from the hollow control seat, and the soil-breaking ball is located inside the inner dewatering chamber. The electromagnetic drive seat can apply a repulsive or attractive magnetic field to the magnetic collar, causing it to drive the inner push rod to move back and forth in the hollow control seat. When moving forward, it can increase the contact area with the sludge, thereby improving the soil-breaking effect, avoiding the sludge from being too dense and difficult to dewater and discharge. Furthermore, the soil-breaking ball can form contact with the screw power component, breaking the soil layer that may be adhering to its surface and promoting its detachment, ensuring the pressing and dewatering effect of the screw power component on the sludge. When moving backward, the soil-breaking ball returns to the through hole, restoring the normal pressing state of the screw power component on the sludge.

[0011] As a further improvement of the present invention, the soil-breaking ball includes a ball core, a sealing ring fixedly connected to one end of the ball core near the inner push rod, and a soil-cleaning end fixedly installed at the other end of the ball core away from the inner push rod. The spherical shape of the ball core can reduce interference with the sludge under compression under normal conditions. At the same time, in the soil-breaking state, even if it is squeezed by the spiral power component, it can retract due to the spherical characteristics, effectively ensuring the safety of the operation. The soil-cleaning end can enhance the sealing of the through hole, and the sealing ring can directly contact the spiral power component to clean the sludge that may adhere to its surface.

[0012] As a further improvement of the present invention, a flow chamber extending to the inner side of the inner push rod is provided on the ball core, and the flow chamber is connected to the hollow control seat and filled with heat-conducting oil. Multiple soil-breaking components are installed at the outer end of the ball core in a ring array distributed at an angle away from the inner push rod. The heat-conducting oil can absorb the heat of the high-temperature water vapor in the space of the outer insulation cover for recycling. When the ball core is reset, the heat-conducting oil is squeezed to drive the soil-breaking components to trigger the extension action. The oblique setting makes it easier to perform the soil-breaking action. When the ball core moves to the soil-breaking state, the heat-conducting oil flows back to its original position to reabsorb heat.

[0013] As a further improvement of the present invention, the soil crushing component includes an inner nested tube fixedly installed on the spherical core, and the inner nested tube is connected to the flow chamber. A matching inner soil crushing needle is slidably installed on the inner side of the inner nested tube. A bulldozing ring matching the inner soil crushing needle is fixedly installed on the outer end of the inner nested tube. An elastic reset component is fixedly connected between the inner soil crushing needle and the inner nested tube. A heating flow channel connected to the inner nested tube is opened in the inner soil crushing needle. After the heat transfer oil is squeezed, it will enter the heating flow channel through the inner nested tube and extend out through hydraulic drive, forming an oblique soil crushing action. This not only improves the soil crushing effect, but also makes it easier for the water inside the sludge to penetrate inward and be discharged. The bulldozing ring can scrape off the sludge that may be adhered to the surface when the inner soil crushing needle is reset. The elastic reset component can pull the inner soil crushing needle back to its original position by elastic force after the hydraulic drive of the heat transfer oil is lost.

[0014] As a further improvement of the present invention, the driving mechanism includes a drive motor fixedly mounted on the base, a small pulley fixedly mounted on the output end of the drive motor, a large pulley connected to the small pulley via a transmission belt, and the large pulley fixedly connected to the spiral power component via a transmission shaft. When the drive motor is started, it drives the small pulley to rotate, and the transmission belt drives the large pulley to rotate, thereby driving the spiral power component to decelerate and rotate via the transmission shaft.

[0015] As a further improvement of the present invention, the spiral power component includes a conveying shaft section. The end of the conveying shaft section near the sludge discharge outlet is connected to an integrally formed extrusion shaft section via a transition shaft section. The conveying shaft section and the extrusion shaft section are located inside the conveying chamber and the dewatering chamber, respectively. Spiral guide plates are installed on the outer ends of the conveying shaft section and the extrusion shaft section. The outer diameter of the conveying shaft section is smaller than that of the extrusion shaft section. The outer diameter of the transition shaft section gradually increases along the direction from the conveying shaft section to the extrusion shaft section. The outer diameter of the spiral guide plates remains consistent. The conveying shaft section plays the role of conveying sludge in the conveying chamber, and the extrusion shaft section plays the role of pressing and dewatering sludge in the dewatering chamber.

[0016] Compared with the prior art, the advantages of the present invention are: (1) The present invention uses the gradient extrusion structure of the spiral power component to gradually increase the squeezing force on the sludge during the conveying process, and with the periodic crushing action of the auxiliary dewatering component, a dynamic "squeeze-loosen-re-squeeze" cycle is formed. This cycle can not only break the dense structure formed by the sludge during the extrusion process, avoiding the water from being trapped and difficult to discharge, but also make the subsequent extrusion more evenly applied to all parts of the sludge. The electric heating element increases the temperature of the sludge, reduces the binding force between water and sludge particles, and makes the water easier to remove. The precise filtration of the filter cloth ensures effective separation of water, and finally makes the state of the dewatered sludge more in line with the requirements of subsequent treatment; (2) The double-layer structure of the outer heat insulation cover can effectively block the heat exchange between the inside and outside, reduce the heat generated by the electric heating element from dissipating to the outside, ensure the temperature stability of the inner dewatering chamber, and reduce the energy consumption required to maintain the temperature. The heat transfer oil circulation system cleverly recovers the heat of water vapor in the outer heat insulation cover and uses it to drive the crushing action, realizing the secondary use of heat and avoiding energy waste. The variable frequency speed control motor used in the drive mechanism can adjust the running speed in real time according to the amount of sludge feed and the moisture content. While ensuring the treatment effect, it avoids the energy loss caused by the equipment running idle or overloaded. The overall operation process is more energy-saving and environmentally friendly. (3) The soil breaking ball of the auxiliary dewatering component can clean the sludge adhering to the surface of the spiral power component in time during the reciprocating motion, preventing the equipment running resistance from increasing and the treatment efficiency from decreasing due to sludge accumulation. The soil breaking mechanism with electromagnetic drive and hydraulic linkage is sensitive and can automatically adjust the action frequency according to the sludge state, reducing the frequency of manual operation and maintenance, reducing the risk of equipment failure caused by human error, and improving the safety and stability of the overall operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the drive mechanism of the present invention;

[0019] Figure 3 This is a cross-sectional view of the outer heat insulation cover portion of the present invention;

[0020] Figure 4 This is a cross-sectional view of the internal dehydration chamber portion of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the spiral power component of the present invention;

[0022] Figure 6 This is a schematic diagram of the auxiliary dehydration component of the present invention;

[0023] Figure 7 This is a cross-sectional view of the auxiliary dehydration component of the present invention;

[0024] Figure 8 This is a cross-sectional view of the soil crushing component of the present invention.

[0025] Explanation of the labels in the diagram:

[0026] 1. Base; 2. Support base; 3. Conveying chamber; 4. Dehydration chamber; 401. Outer insulation cover; 402. Inner dehydration chamber; 403. Water collection cover; 404. Exhaust port; 405. Drainage port; 5. Feed inlet; 6. Drive mechanism; 601. Drive motor; 602. Small pulley; 603. Transmission belt; 604. Large pulley; 605. Drive shaft; 7. Drainage pipe; 8. Spiral power component; 801. Conveying shaft section; 802. Extrusion shaft section; 803. Transition shaft section; 804. Spiral guide plate; 9. Auxiliary dewatering component; 901. Hollow control seat; 902. Inner push rod; 903. Magnetic collar; 904. Soil-breaking ball; 9041. Ball core; 9042. Soil-cleaning end; 9043. Sealing ring part; 9044. Flow chamber; 905. Soil-breaking component; 9051. Inner nested tube; 9052. Inner soil-breaking needle; 9053. Pushing ring; 9054. Elastic reset component; 9055. Heating channel; 10. Electromagnetic drive seat; 11. Sludge discharge outlet; 12. Steam pump; 13. Electric heating element. Detailed Implementation

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figures 1-5A desulfurization wastewater sludge treatment device includes a base 1, a conveying chamber 3, a dewatering chamber 4, and a drive mechanism 6. A support base 2 is fixedly installed on the upper end of the base 1. The conveying chamber 3 is fixedly installed on the support base 2. A feed inlet 5 is fixedly installed on the upper end of the conveying chamber 3. The dewatering chamber 4 is fixedly installed on the support base 2 and connected to the conveying chamber 3. A screw power component 8 is rotatably installed in both the dewatering chamber 4 and the conveying chamber 3. A sludge discharge outlet 11 is fixedly installed at the end of the dewatering chamber 4 away from the conveying chamber 3. A drain pipe 7 is fixedly installed at the lower end of the dewatering chamber 4. The drive mechanism 6 is fixedly installed on the base 1 and is used to drive the screw power component 8 to rotate.

[0029] The dehydration chamber 4 includes an outer insulation cover 401 and an inner dehydration chamber 402. A connected water collection cover 403 is fixedly installed at the lower end of the outer insulation cover 401, and a drain pipe 7 is fixedly installed at the lower end of the water collection cover 403. The upper and lower ends of the inner dehydration chamber 402 are respectively provided with an exhaust hole 404 and a drain hole 405. Filter cloth is fixedly connected inside the exhaust hole 404 and the drain hole 405. The outer insulation cover 401 serves to isolate the outside environment and prevent heat leakage. The inner dehydration chamber 402 is used to cooperate with the spiral power component 8 to press and dehydrate the sludge. The squeezed water is filtered through the drain hole 405 and collected in the water collection cover 403, while water vapor, due to its lower density, rises and enters the inner space of the outer insulation cover 401 from the exhaust hole 404.

[0030] Multiple electric heating elements 13 are fixedly installed at the outer end of the inner dehydration chamber 402, and a steam pump 12 is fixedly installed at the upper end of the outer insulation cover 401. The air inlet of the steam pump 12 is connected to the upper end of the outer insulation cover 401 through a pipe. The inner dehydration chamber 402 can be directly heated by the electric heating elements 13. Combined with the extrusion of the spiral power component 8, the dehydration effect can be significantly improved. The steam pump 12 can quickly discharge water vapor.

[0031] The dehydration chamber 4 adopts a double-layer composite structure design. The outer insulation cover 401 is composed of a rock wool insulation layer and a stainless steel outer plate, with a thickness of 50mm, which can effectively isolate the influence of external ambient temperature and reduce internal heat loss. The inner dehydration chamber 402 is made of high-strength polypropylene (PP) material, which has good chemical corrosion resistance and high temperature resistance. The filter cloth fixed inside the vent 404 and drain 405 at the top and bottom is made of polyester fiber needle-punched felt filter cloth with a filtration accuracy of 5μm, which can ensure the passage of water and water vapor while trapping sludge particles.

[0032] The electric heating element 13 is a ceramic heating tube, evenly distributed on the outside of the inner dehydration chamber 402, with a surface power density controlled at 1.5W / cm², which can achieve uniform heating of the inner dehydration chamber 402 and avoid local overheating. The steam pump 12 is a corrosion-resistant fluoroplastic centrifugal pump, which can efficiently extract water vapor inside the outer insulation cover 401. Its air inlet pipe is equipped with a stainless steel wire mesh filter to prevent impurities from entering the pump body.

[0033] The drive mechanism 6 includes a drive motor 601 fixedly mounted on the base 1. A small pulley 602 is fixedly mounted on the output end of the drive motor 601. The small pulley 602 is connected to a large pulley 604 via a transmission belt 603. The large pulley 604 is fixedly connected to the spiral power component 8 via a transmission shaft 605. When the drive motor 601 starts, it drives the small pulley 602 to rotate. The transmission belt 603 drives the large pulley 604 to rotate, which in turn drives the spiral power component 8 to decelerate and rotate via the transmission shaft 605.

[0034] The drive motor 601 of the drive mechanism 6 is a variable frequency speed control motor with a power of 5.5kW and a speed adjustment range of 0~1500r / min. The speed of the screw power component 8 can be adjusted in real time according to the sludge processing volume. The small pulley 602 and the large pulley 604 are made of gray cast iron HT200 with trapezoidal tooth grooves machined on the surface. The transmission belt 603 is a neoprene rubber synchronous belt with a transmission ratio of 3:1 to ensure the stability and accuracy of power transmission.

[0035] The spiral power component 8 includes a conveying shaft section 801. The end of the conveying shaft section 801 near the sludge discharge outlet 11 is connected to an integrally formed extrusion shaft section 802 via a transition shaft section 803. The conveying shaft section 801 and the extrusion shaft section 802 are located inside the conveying chamber 3 and the dewatering chamber 4, respectively. Spiral guide plates 804 are installed on the outer ends of the conveying shaft section 801 and the extrusion shaft section 802. The outer diameter of the conveying shaft section 801 is smaller than the outer diameter of the extrusion shaft section 802. The outer diameter of the transition shaft section 803 gradually increases along the direction from the conveying shaft section 801 to the extrusion shaft section 802. The outer diameter of the spiral guide plate 804 remains consistent. The conveying shaft section 801 plays the role of conveying sludge in the conveying chamber 3, and the extrusion shaft section 802 plays the role of pressing and dewatering the sludge in the dewatering chamber 4.

[0036] The conveying shaft section 801 and the extrusion shaft section 802 of the spiral power component 8 are made of 45# steel with heat treatment and hard chrome plating, achieving a hardness of HRC55 or higher. The spiral guide plate 804 is made of wear-resistant manganese steel with a thickness of 8mm and a uniform outer diameter of 300mm. The outer diameter of the conveying shaft section 801 is 200mm, and the outer diameter of the extrusion shaft section 802 is 280mm. The transition shaft section 803 adopts a conical transition structure to ensure a smooth transition of sludge from conveying to extrusion.

[0037] Example 2: Please refer to Figures 6-8Based on Example 1, multiple electromagnetic drive seats 10 are fixedly installed on the outer end of the outer heat insulation cover 401, and multiple auxiliary dewatering components 9 corresponding to the electromagnetic drive seats 10 are fixedly installed on the inner side wall of the outer heat insulation cover 401. Multiple through holes corresponding to the auxiliary dewatering components 9 are opened on the inner dewatering chamber 402, and the auxiliary dewatering components 9 pass through the through holes and extend to the inner side of the inner dewatering chamber 402. The electromagnetic drive seat 10 can trigger the auxiliary dewatering components 9 to break up the soil inside the inner dewatering chamber 402 through the magnetic field, which facilitates the discharge of water and prevents the water inside from being unable to be discharged due to the sludge being squeezed too densely. With the help of the spiral power component 8, the sludge is subjected to intermittent squeezing and breaking up of soil, which can significantly improve the drainage effect of the sludge.

[0038] The auxiliary dehydration component 9 includes a hollow control base 901 fixedly installed inside the outer insulation cover 401. A matching inner push rod 902 is slidably installed inside the hollow control base 901. A magnetic collar 903 is fixedly installed at the outer end of the inner push rod 902. A soil-breaking ball 904 is fixedly installed at the end of the inner push rod 902 away from the hollow control base 901, and the soil-breaking ball 904 is located inside the inner dehydration chamber 402. The electromagnetic drive base 10 can apply a repulsive or attractive magnetic field to the magnetic collar 903, causing it to drive the inner dehydration chamber 402. The push rod 902 moves back and forth in the hollow control seat 901. When it moves forward, it can increase the contact area with the sludge, thereby improving the soil crushing effect and preventing the sludge from being too compacted and difficult to dewater and discharge. The soil breaking ball 904 can also make contact with the screw power component 8, breaking the soil layer that may be adhering to its surface and promoting its detachment, thus ensuring the pressing and dewatering effect of the screw power component 8 on the sludge. When it moves backward, the soil breaking ball 904 returns to the through hole, restoring the normal pressing state of the screw power component 8 on the sludge.

[0039] The breaking ball 904 includes a ball core 9041. A sealing ring 9043 is fixedly connected to one end of the ball core 9041 near the inner push rod 902, and a soil cleaning end 9042 is fixedly installed at the other end of the ball core 9041 away from the inner push rod 902. The ball core 9041 is spherical, which can reduce interference with the sludge under compression under normal conditions. At the same time, when the soil is breaking, even if it is squeezed by the spiral power component 8, it can retract due to the spherical characteristics, effectively ensuring the safety of the operation. The soil cleaning end 9042 can enhance the sealing of the through hole, and the sealing ring 9043 can directly contact the spiral power component 8 to clean the sludge that may be adhered to its surface.

[0040] The ball core 9041 has a flow chamber 9044 extending to the inner side of the inner push rod 902. The flow chamber 9044 is connected to the hollow control seat 901 and filled with heat-conducting oil. Multiple soil-breaking components 905 are installed at the outer end of the ball core 9041 at an angle away from the inner push rod 902. The heat-conducting oil can absorb the heat of the high-temperature water vapor in the space of the outer insulation cover 401 for recycling. When the ball core 9041 is reset, the heat-conducting oil is squeezed, which drives the soil-breaking components 905 to trigger the extension action. The oblique setting makes it easier to perform soil-breaking action. When the ball core 9041 moves to the soil-breaking state, the heat-conducting oil flows back to its original position to reabsorb heat.

[0041] The soil-breaking component 905 includes an inner nested tube 9051 fixedly installed on the spherical core 9041, and the inner nested tube 9051 is connected to the flow chamber 9044. A matching inner soil-breaking needle 9052 is slidably installed inside the inner nested tube 9051. A bulldozing ring 9053 matching the inner soil-breaking needle 9052 is fixedly installed at the outer end of the inner nested tube 9051. An elastic reset component 9054 is fixedly connected between the inner soil-breaking needle 9052 and the inner nested tube 9051. A heating flow channel communicating with the inner nested tube 9051 is opened inside the inner soil-breaking needle 9052. After the heat transfer oil is squeezed, it enters the heating channel 9055 through the inner nested tube 9051 and extends out through the inner soil-breaking needle 9052 driven by hydraulic pressure, forming an oblique soil-breaking action. This not only improves the soil-breaking effect, but also makes it easier for the water inside the sludge to penetrate inward and be discharged. The pusher ring 9053 can scrape off the sludge that may be attached to the surface when the inner soil-breaking needle 9052 is reset. The elastic reset member 9054 can pull the inner soil-breaking needle 9052 back to its original position by elastic force after the hydraulic driving action of the heat transfer oil is lost.

[0042] The electromagnetic drive base 10 uses a silicon steel sheet core with enameled wire windings and is externally wrapped with an epoxy resin insulation layer, which can generate a stable and adjustable magnetic field. The hollow control base 901 of the auxiliary dehydration component 9 is made of stainless steel, and the inner push rod 902 is hard chrome plated to improve wear resistance and corrosion resistance. The magnetic collar 903 uses neodymium iron boron permanent magnet material with a magnetic induction intensity of up to 1.2T, ensuring effective coupling with the magnetic field of the electromagnetic drive base 10.

[0043] The core 9041 of the soil-breaking ball 904 is made of aluminum alloy with a PEEK wear-resistant coating. The cleaning end 9042 is a disc-shaped structure made of ultra-high molecular weight polyethylene, which has self-lubricating properties and can effectively clean the sludge adhering to the surface of the spiral power component 8. The sealing ring 9043 is made of silicone rubber, which forms a flexible seal when in contact with the spiral power component 8 to prevent sludge leakage. The flow chamber 9044 is filled with methyl silicone oil, which has good high-temperature resistance and thermal conductivity, and its operating temperature range is -50℃ to 200℃.

[0044] Both the inner nested tube 9051 and the inner soil-breaking needle 9052 of the soil-breaking component 905 are made of stainless steel. The end of the inner soil-breaking needle 9052 is machined at a 45° angle to enhance the soil-breaking effect. The elastic reset component 9054 uses a stainless steel spring with an elastic coefficient of 5 N / mm to ensure that the inner soil-breaking needle 9052 can reliably reset after the hydraulic drive is lost. The bulldozer ring 9053 is made of polyoxymethylene (POM) material, which has good wear resistance and dimensional stability.

[0045] Working principle:

[0046] When the desulfurization wastewater sludge enters the conveying chamber 3 through the feed inlet 5, the drive motor 601 starts, driving the transmission shaft 605 and the screw power component 8 to rotate through the transmission of the small pulley 602, the transmission belt 603 and the large pulley 604. The screw guide plate 804 of the conveying shaft section 801 pushes the sludge along the conveying chamber 3 to the dewatering chamber 4. As the outer diameter of the extrusion shaft section 802 gradually increases, the screw guide plate 804 exerts a squeezing effect on the sludge, initially discharging some water.

[0047] When the electric heating element 13 on the outside of the inner dewatering chamber 402 is energized, it heats the inner dewatering chamber 402, increasing the sludge temperature, reducing water viscosity, and enhancing the dewatering effect. Under the action of compression and heating, the water in the sludge is filtered through the filter cloth of the drain hole 405, enters the water collection hood 403, and is collected and discharged through the drain pipe 7. The water vapor generated by evaporation enters the inner space of the outer insulation hood 401 through the filter cloth of the exhaust hole 404. The steam pump 12 is periodically started to extract and treat the water vapor.

[0048] The electromagnetic drive base 10 periodically applies a changing magnetic field, generating an adsorption or repulsion force on the magnetic collar 903, driving the inner push rod 902 to move the soil-breaking ball 904 reciprocating within the inner dewatering chamber 402. When the soil-breaking ball 904 moves forward, the soil-cleaning end 9042 cleans the sludge adhering to the surface of the spiral guide plate 804, and the spherical structure of the soil-breaking ball 904 inserts into the dense sludge layer, breaking up the sludge blocks and forming a water discharge channel; when moving backward, the soil-breaking ball 904 returns to the through hole, restoring the normal squeezing state of the sludge by the spiral guide plate 804.

[0049] During the movement of the breaking ball 904, the heat-conducting oil in the flow chamber 9044 absorbs the heat from the water vapor in the outer insulation cover 401. When the breaking ball 904 resets, the heat-conducting oil is squeezed and enters the heating channel 9055 through the inner nested tube 9051. The hydraulically driven inner soil-breaking needle 9052 overcomes the elastic force of the elastic reset member 9054 and extends along a 45° inclined direction to break up sludge particles and enhance water penetration. After the hydraulic drive is lost, the elastic reset member 9054 pulls the inner soil-breaking needle 9052 back to its original position, and the pusher ring 9053 scrapes off the sludge on the surface of the inner soil-breaking needle 9052 to ensure the reliability of the next operation.

[0050] Finally, the dewatered sludge is discharged through sludge discharge outlet 11, completing the entire treatment process.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A desulfurization wastewater sludge treatment device, characterized in that: include: Base (1), and a support seat (2) is fixedly installed on the upper end of the base (1); The conveying chamber (3) is fixedly installed on the support base (2), and the upper end of the conveying chamber (3) is fixedly installed with a connected feed inlet (5); A dewatering chamber (4) is fixedly installed on a support base (2) and connected to a conveying chamber (3). A spiral power component (8) is rotatably installed in both the dewatering chamber (4) and the conveying chamber (3). A sludge discharge outlet (11) is fixedly installed at the end of the dewatering chamber (4) away from the conveying chamber (3). A drain pipe (7) is fixedly installed at the lower end of the dewatering chamber (4). The dewatering chamber (4) includes an outer heat insulation cover (401) and an inner dewatering chamber (402). A water collection cover (403) is fixedly installed at the lower end of the outer heat insulation cover (401), and the drain pipe (7) is fixedly installed at the lower end of the water collection cover (403). An exhaust hole (404) and a drain hole (405) are respectively opened at the upper and lower ends of the inner dewatering chamber (402). Filter cloths are fixedly connected to both the exhaust port (404) and the drain port (405). Multiple electromagnetic drive seats (10) are fixedly installed on the outer end of the outer heat insulation cover (401). Multiple auxiliary dehydration components (9) corresponding to the electromagnetic drive seats (10) are fixedly installed on the inner side wall of the outer heat insulation cover (401). Multiple through holes corresponding to the auxiliary dehydration components (9) are opened on the inner dehydration chamber (402). The auxiliary dehydration components (9) pass through the through holes and extend to the inner side of the inner dehydration chamber (402). The auxiliary dehydration components (9) include a hollow control seat (901) fixedly installed on the inner side of the outer heat insulation cover (401). A matching inner push rod (902) is slidably installed on the inner side of the hollow control seat (901). (902) A magnetic collar (903) is fixedly installed on the outer end. A soil-breaking ball (904) is fixedly installed on the end of the inner push rod (902) away from the hollow control seat (901), and the soil-breaking ball (904) is located inside the inner dewatering chamber (402). The soil-breaking ball (904) includes a ball core (9041). A sealing ring (9043) is fixedly connected to the end of the ball core (9041) near the inner push rod (902). A soil-cleaning end (9042) is fixedly installed on the end of the ball core (9041) away from the inner push rod (902). A flow chamber (9044) extending to the inner side of the inner push rod (902) is opened on the ball core (9041), and the flow chamber (9044) is connected to the hollow control seat (901). The ball core (9041) is connected and filled with heat-conducting oil. Multiple soil-breaking components (905) are installed at the outer end of the ball core (9041) at an angle away from the inner push rod (902). Each soil-breaking component (905) includes an inner nested tube (9051) fixedly installed on the ball core (9041) and is connected to the flow chamber (9044). A matching inner soil-breaking needle (9052) is slidably installed on the inner side of the inner nested tube (9051). A bulldozing ring (9053) matching the inner soil-breaking needle (9052) is fixedly installed at the outer end of the inner nested tube (9051). An elastic reset component (9054) is fixedly connected between the inner soil-breaking needle (9052) and the inner nested tube (9051).The inner soil-breaking needle (9052) has a heating flow channel (9055) that communicates with the inner nested tube (9051); The drive mechanism (6) is fixedly installed on the base (1) and is used to drive the spiral power component (8) to rotate.

2. The desulfurization wastewater sludge treatment device according to claim 1, characterized in that: Multiple electric heating elements (13) are fixedly installed at the outer end of the inner dehydration chamber (402), and a steam pump (12) is fixedly installed at the upper end of the outer insulation cover (401), and the air inlet of the steam pump (12) is connected to the upper end of the outer insulation cover (401) through a pipe.

3. The desulfurization wastewater sludge treatment device according to claim 1, characterized in that: The drive mechanism (6) includes a drive motor (601) fixedly mounted on the base (1). A small pulley (602) is fixedly mounted on the output end of the drive motor (601). The small pulley (602) is connected to a large pulley (604) via a transmission belt (603). The large pulley (604) is fixedly connected to the spiral power component (8) via a transmission shaft (605).

4. The desulfurization wastewater sludge treatment device according to claim 1, characterized in that: The spiral power component (8) includes a conveying shaft section (801). The end of the conveying shaft section (801) near the sludge discharge outlet (11) is connected to an integrally formed extrusion shaft section (802) via a transition shaft section (803). The conveying shaft section (801) and the extrusion shaft section (802) are located inside the conveying chamber (3) and the dewatering chamber (4), respectively. The outer ends of the conveying shaft section (801) and the extrusion shaft section (802) are jointly equipped with spiral guide plates (804). The outer diameter of the conveying shaft section (801) is smaller than the outer diameter of the extrusion shaft section (802). The outer diameter of the transition shaft section (803) gradually increases along the direction from the conveying shaft section (801) to the extrusion shaft section (802). The outer diameter of the spiral guide plate (804) remains consistent.

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