An environmental engineering sludge treatment equipment

Abstract

This utility model belongs to the field of sludge treatment technology, specifically an environmental engineering sludge treatment device. It includes a rotating shaft with three sets of three stirring blades equidistantly installed at the middle of the shaft. Scrapers are fixed to the four ends of the cross-shaped structure. A driving bevel gear is installed on the outer side of the rotating shaft, a driven bevel gear is installed at one end of the shaft, and a spiral blade is installed at the other end. Five stirring rods are equidistantly installed on the outer side of the rotating shaft. A drive motor rotates the rotating shaft, causing the stirring blades to perform circumferential stirring of the sludge. The cross-shaped structure drives the scrapers to scrape sludge off the cylinder wall. Simultaneously, the driving and driven bevel gears on the rotating shaft mesh, driving the shaft to rotate. This causes the spiral blades and stirring rods to perform lateral and longitudinal stirring and tumbling of the sludge while making circumferential motion. The multi-component coordinated operation achieves multi-directional stirring, increases the contact area between the sludge and hot air, and accelerates the drying process.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically to an environmental engineering sludge treatment device. Background Technology

[0002] In industrial wastewater treatment plants, when treating sludge, the dewatered sludge needs to be dried to achieve harmless treatment, reduce environmental pollution, and facilitate subsequent recycling of the sludge. Therefore, a sludge treatment device is required.

[0003] A Chinese patent with authorization announcement number CN116768451B discloses a modular sludge dryer, including a drying module. A discharge device is installed at the end of the drying module away from the motor assembly module. A stirring assembly is installed inside the drying module on the side closer to the motor assembly module. The outer wall of the stirring assembly has equidistantly arranged stirring rods. This invention adds new drying modules, aligning the socket grooves of the new drying modules with the socket rods of the old drying modules. When the socket rods are pushed into the socket grooves, the gas inside the socket grooves is pushed out through a spiral exhaust groove, thus temporarily fixing the sludge. Repeatedly adding drying modules increases the length of the sludge dryer, thereby increasing the length of the sludge drying chamber, increasing the capacity of the dried sludge, reducing the drying time, and improving the degree of drying.

[0004] However, the aforementioned dryers still have some problems. In practical applications, after the sludge enters the drying drum, it will accumulate locally inside the drum, hindering heat transfer. The sludge at the bottom is compacted by gravity and does not have sufficient contact with the heating surface, resulting in slow water evaporation and reduced sludge drying efficiency. Therefore, an environmental engineering sludge treatment device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes an environmental engineering sludge treatment device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An environmental engineering sludge treatment device of this utility model includes a drying drum. A drive motor is installed on one side of the drying drum, and a rotating shaft is installed at the output end of the drive motor. One end of the rotating shaft passes through the drying drum. Three sets of stirring blades, each consisting of three blades, are equidistantly installed at the middle of the rotating shaft. Two cross-shaped supports are symmetrically installed at both ends of the rotating shaft. Scrapers are fixedly connected to the four ends of each cross-shaped support. The scrapers are in contact with the inner wall of the drying drum. Mounting frames are installed at both ends of the rotating shaft, and the outer side of the rotating shaft is located within the mounting frames. The drying cylinder is internally equipped with a driving bevel gear. Rotary shafts are rotatably mounted through both sides of the mounting frame. One end of each shaft, located inside the mounting frame, is fitted with a driven bevel gear, which meshes with the driving bevel gear. The other end of each shaft is fitted with a helical blade. Five stirring rods are equidistantly mounted on the outer side of the shaft, positioned in the gaps between the helical blades. This multi-directional stirring of the sludge inside the drying cylinder improves the uniformity of sludge mixing and increases the contact area between the sludge and hot air, thereby accelerating the sludge drying process and improving drying efficiency and quality.

[0007] Preferably, a drive wheel is installed at the other end of the rotating shaft, and a feed hopper is installed on the top side of the drying cylinder. Two connecting shafts are symmetrically and rotatably installed inside the feed hopper. A driven wheel is installed on the outer side of one of the connecting shafts. The drive wheel and the driven wheel are connected by a belt, so that crushing and mixing operations can be carried out simultaneously.

[0008] Preferably, crushing rollers are installed on the outer side of the connecting shaft inside the feed hopper. A drive gear and a driven gear are respectively installed at one end of the connecting shaft. The drive gear and the driven gear mesh with each other. Through the transmission of the drive wheel, the driven wheel, and the belt, as well as the meshing of the drive gear and the driven gear, the equipment can drive the two crushing rollers in the feed hopper to rotate synchronously, crushing the incoming sludge. The crushed sludge particles are smaller, have a larger surface area, and are easier to exchange heat with hot air, thereby significantly improving the sludge drying effect.

[0009] Preferably, two mounting cavities are symmetrically installed on the top side of the drying cylinder. Each mounting cavity has five air inlet slots inside its top side. A negative pressure motor is installed inside the top side of the mounting cavity, and five fan blades are installed at the output end of the negative pressure motor. A heating plate is installed at the bottom of the mounting cavity. Several ventilation holes are equidistantly opened through the bottom side of the mounting cavity and extending through the top side of the drying cylinder. The negative pressure motor drives the fan blades to rotate, generating airflow. After being heated by the heating plate, hot air is formed and evenly blown into the drying cylinder through the ventilation holes, which increases the temperature inside the drying cylinder and accelerates the evaporation of moisture in the sludge, further speeding up the drying process of the sludge.

[0010] Preferably, a discharge pipe is connected to the bottom side of the drying cylinder, and a sliding groove is formed between the two sides of the top end of the discharge pipe. A baffle is slidably installed inside the sliding groove. Two support legs are symmetrically installed on the bottom side of the drying cylinder, and a cylinder is installed on one side of each support leg. The working end of the cylinder is fixedly connected to one side of the baffle. When discharge is required, the cylinder retracts, causing the baffle to slide and opening the discharge pipe. When discharge needs to be stopped, the cylinder extends, pushing the baffle to slide and closing the discharge pipe, thereby improving work efficiency.

[0011] Preferably, a control panel is installed on one side of the drying cylinder. The control panel is electrically connected to the electrical components inside the device. The control panel is used to control the operation of the electrical components inside the device, thereby realizing centralized control of the electrical components inside the device.

[0012] The advantages of this utility model are:

[0013] 1. The present invention uses a drive motor to rotate a rotating shaft, on which stirring blades perform circumferential stirring of sludge. The cross-shaped drive scraper removes sludge from the cylinder wall. At the same time, the active bevel gear on the rotating shaft meshes with the driven bevel gear, driving the rotating shaft to rotate. This causes the spiral blades and stirring rod to perform lateral and longitudinal stirring and tumbling of the sludge while making circumferential motion. The multi-component coordinated operation achieves multi-directional stirring, increases the contact area between the sludge and hot air, and accelerates the drying process.

[0014] 2. The driving wheel at the other end of the rotating shaft of this utility model rotates accordingly, and rotates in conjunction with the driven wheel through the belt, thereby causing the connecting shaft to rotate as well. The driving gear rotates along with the connecting shaft. The driving gear and the driven gear mesh with each other, driving the two connecting shafts to rotate synchronously in opposite directions. The crushing roller rotates relative to each other under the drive of the connecting shaft, squeezing and shearing the dewatered sludge entering the feed hopper, crushing the sludge into smaller particles, increasing the surface area of ​​the sludge, and making it easier to exchange heat with hot air, thereby significantly improving the drying effect of the sludge. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 A cross-sectional structural diagram of a sludge treatment equipment;

[0018] Figure 3 Schematic diagram of the component structure for promoting uniform thermal drying of sludge;

[0019] Figure 4 This is a schematic diagram of the feeding and thermal drying components.

[0020] Figure 5 This is a schematic diagram of the material discharge assembly.

[0021] In the diagram: 1. Drying cylinder; 2. Drive motor; 3. Rotating shaft; 4. Stirring blades; 5. Cross-shaped component; 6. Scraper; 7. Mounting frame; 8. Driving bevel gear; 9. Rotating shaft; 10. Driven bevel gear; 11. Spiral blades; 12. Stirring rod; 13. Driving wheel; 14. Feed hopper; 15. Connecting shaft; 16. Driven wheel; 17. Belt; 18. Crushing roller; 19. Driving gear; 20. Driven gear; 21. Mounting cavity; 22. Air inlet slot; 23. Negative pressure motor; 24. Fan blades; 25. Heating plate; 26. Ventilation hole; 27. Discharge pipe; 28. Baffle; 29. ​​Cylinder; 30. Support leg; 31. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-3 As shown, an environmental engineering sludge treatment device includes a drying cylinder 1. A drive motor 2 is installed on one side of the drying cylinder 1, and a rotating shaft 3 is installed at the output end of the drive motor 2. One end of the rotating shaft 3 passes through the drying cylinder 1. Three sets of stirring blades 4 are equidistantly installed at the middle of the rotating shaft 3. Two cross blades 5 are symmetrically installed at both ends of the rotating shaft 3. Scrapers 6 are fixedly connected to the four ends of each cross blade 5. The scrapers 6 are in contact with the inner wall of the drying cylinder 1. Both ends of the rotating shaft 3 are equipped with... The mounting frame 7 is provided. A drive bevel gear 8 is installed on the outer side of the rotating shaft 3 inside the mounting frame 7. A rotating shaft 9 is rotatably installed through both sides of the mounting frame 7. A driven bevel gear 10 is installed at one end of the rotating shaft 9 inside the mounting frame 7, and the drive bevel gear 8 and the driven bevel gear 10 mesh with each other. A spiral blade 11 is installed at the other end of the rotating shaft 9. Five stirring rods 12 are equidistantly installed on the outer side of the rotating shaft 9. The stirring rods 12 are located in the gaps of the spiral blades 11.

[0024] A control panel 31 is installed on one side of the drying cylinder 1. The control panel 31 is electrically connected to the electrical components inside the device and is used to control the operation of the electrical components. During operation, in practical applications, after the sludge enters the drying cylinder 1, it will locally accumulate inside the drying cylinder 1, hindering heat transfer. The sludge at the bottom is compacted by gravity, resulting in insufficient contact with the heating surface, which leads to slow water evaporation and reduces the efficiency of sludge drying. The drive motor 2 is started through the control panel 31, and its output end drives the rotating shaft 3 to rotate. The three sets of stirring blades 4 at the middle of the rotating shaft 3 rotate accordingly, stirring the sludge inside the drying cylinder 1 in a circumferential direction. Meanwhile, the crosses 5 at both ends of the rotating shaft 3 drive the scraper 6 to rotate along the inner wall of the drying cylinder 1, scraping off the sludge adhering to the cylinder wall and preventing sludge accumulation. In addition, the active bevel gear 8 rotates with the rotating shaft 3 and, through meshing with the driven bevel gear 10, drives the rotating shaft 9 to rotate, which in turn drives the spiral blades 11 and the stirring rod 12 to rotate. During rotation, the sludge is stirred and tumbled in the horizontal and vertical directions, and the spiral blades 11 and the stirring rod 12 make circular motions, realizing multi-directional stirring of the sludge inside the drying cylinder 1, improving the mixing uniformity of the sludge, and also increasing the contact area between the sludge and the hot air, thereby accelerating the sludge drying process and improving drying efficiency and quality.

[0025] Please see Figure 1 , 2 As shown in Figures 4 and 5, a drive wheel 13 is installed at the other end of the rotating shaft 3, and a feed hopper 14 is installed on the top side of the drying cylinder 1. Two connecting shafts 15 are symmetrically and rotatably installed inside the feed hopper 14. A driven wheel 16 is installed on the outer side of one of the connecting shafts 15. The drive wheel 13 and the driven wheel 16 are connected by a belt 17.

[0026] Crushing rollers 18 are installed on the outer side of the connecting shaft 15 and inside the feed hopper 14. A driving gear 19 and a driven gear 20 are respectively installed on one end of the connecting shaft 15, and the driving gear 19 and the driven gear 20 mesh with each other.

[0027] Two mounting cavities 21 are symmetrically installed on the top side of the drying cylinder 1. Each mounting cavity 21 has five air inlet slots 22 inside its top side. A negative pressure motor 23 is installed inside the top side of the mounting cavity 21. Five fan blades 24 are installed at the output end of the negative pressure motor 23. A heating plate 25 is installed at the bottom end of the mounting cavity 21. Several ventilation holes 26 are equidistantly opened on the bottom side of the mounting cavity 21 through the top side of the drying cylinder 1.

[0028] The bottom of the drying cylinder 1 is connected to a discharge pipe 27. A sliding groove is formed between the two sides of the top end of the discharge pipe 27. A baffle 28 is slidably installed inside the sliding groove. Two support legs 30 are symmetrically installed on the bottom of the drying cylinder 1. A cylinder 29 is installed on one side of each support leg 30. The working end of the cylinder 29 is fixedly connected to one side of the baffle 28. During operation, in an industrial wastewater treatment plant, when treating sludge, the dewatered sludge needs to be dried to achieve harmless treatment. The dewatered sludge usually appears in a large volume, which reduces the efficiency of sludge drying. At the same time, the drive wheel 13 at the other end of the rotating shaft 3 is driven by... The belt 17 rotates in conjunction with the driven wheel 16, causing the connecting shaft 15 to rotate as well, transmitting power to the feed hopper 14. The drive gear 19 rotates along with the connecting shaft 15. The drive gear 19 meshes with the driven gear 20, driving the two connecting shafts 15 to rotate synchronously in opposite directions. The crushing rollers 18 located inside the feed hopper 14 on the outside of the two connecting shafts 15 rotate relative to each other under the drive of the connecting shafts 15, squeezing and shearing the dewatered sludge entering the feed hopper 14, crushing the sludge into smaller particles, increasing the sludge surface area, and making it easier to exchange heat with hot air, thereby significantly improving the sludge drying effect.

[0029] While feeding, the negative pressure motor 23 starts, and the five fan blades 24 at its output end rotate. Outside air passes through the air inlet slot 22 and generates airflow in the mounting cavity 21. After the airflow is heated by the heating plate 25, it forms hot air. The hot air is blown evenly into the drying cylinder 1 through the ventilation hole 26. Multi-directional stirring makes the sludge fully contact the hot air. The hot air not only increases the temperature inside the drying cylinder 1, but also accelerates the evaporation of water in the sludge and speeds up the drying process.

[0030] When the sludge drying is complete and discharge is required, the control panel 31 controls the cylinder 29 to retract. The retraction of the cylinder 29 causes the baffle 28 to slide along the chute, opening the discharge pipe 27. When discharge is complete or discharge needs to be paused, the control panel 31 controls the cylinder 29 to extend, pushing the baffle 28 to slide in the opposite direction along the chute, closing the discharge pipe 27, preventing the sludge from continuing to flow out, thus achieving flexible control of the discharge process and improving work efficiency.

[0031] Working principle: The drive motor 2 is started via the control panel 31, and its output end drives the rotating shaft 3 to rotate. The three sets of stirring blades 4 at the middle of the rotating shaft 3 rotate accordingly, stirring the sludge inside the drying cylinder 1 in a circumferential direction. At the same time, the cross 5 at both ends of the rotating shaft 3 drives the scraper 6 to rotate along the inner wall of the drying cylinder 1, scraping off the sludge adhering to the cylinder wall and preventing sludge accumulation. In addition, the active bevel gear 8 rotates with the rotating shaft 3 and, through meshing with the driven bevel gear 10, drives the rotating shaft 9 to rotate, driving the spiral blades 11 and stirring rod 12 to rotate. During rotation, the sludge is stirred and tumbled in the horizontal and vertical directions, and the spiral blades 11 and stirring rod 12 will make circumferential motion, realizing multi-directional stirring of the sludge inside the drying cylinder 1, improving the mixing uniformity of the sludge, and also increasing the contact area between the sludge and the hot air, thereby accelerating the sludge drying process and improving drying efficiency and quality.

[0032] Simultaneously, the drive wheel 13 at the other end of the rotating shaft 3 rotates, and through the belt 17, it rotates in conjunction with the driven wheel 16, which in turn causes the connecting shaft 15 to rotate, transmitting power to the feed hopper 14. The drive gear 19 rotates when the connecting shaft 15 rotates, and the drive gear 19 meshes with the driven gear 20, driving the two connecting shafts 15 to rotate synchronously in opposite directions. The crushing rollers 18 located inside the feed hopper 14 on the outside of the two connecting shafts 15 rotate relative to each other under the drive of the connecting shafts 15, squeezing and shearing the dewatered sludge entering the feed hopper 14, crushing the sludge into smaller particles, increasing the sludge surface area, and making it easier to exchange heat with hot air, thereby significantly improving the sludge drying effect.

[0033] While feeding, the negative pressure motor 23 starts, and the five fan blades 24 at its output end rotate. Outside air passes through the air inlet slot 22 and generates airflow in the mounting cavity 21. After the airflow is heated by the heating plate 25, it forms hot air. The hot air is blown evenly into the drying cylinder 1 through the ventilation hole 26. Multi-directional stirring makes the sludge fully contact the hot air. The hot air not only increases the temperature inside the drying cylinder 1, but also accelerates the evaporation of water in the sludge and speeds up the drying process.

[0034] When the sludge drying is complete and discharge is required, the control panel 31 controls the cylinder 29 to retract. The retraction of the cylinder 29 causes the baffle 28 to slide along the chute, opening the discharge pipe 27. When discharge is complete or discharge needs to be paused, the control panel 31 controls the cylinder 29 to extend, pushing the baffle 28 to slide in the opposite direction along the chute, closing the discharge pipe 27, preventing the sludge from continuing to flow out, thus achieving flexible control of the discharge process and improving work efficiency.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An environmentally friendly engineering sludge disposal apparatus, characterized by: The device includes a drying cylinder (1), a drive motor (2) is installed on one side of the drying cylinder (1), a rotating shaft (3) is installed at the output end of the drive motor (2), one end of the rotating shaft (3) passes through the drying cylinder (1), three sets of stirring blades (4) are installed at equal intervals in the middle of the rotating shaft (3), two crosses (5) are symmetrically installed at both ends of the rotating shaft (3), and scrapers (6) are fixed between the four ends of the crosses (5). The scrapers (6) are in contact with the inner wall of the drying cylinder (1), and mounting frames (7) are installed at both ends of the rotating shaft (3). The outer side of the rotating shaft (3) is equipped with a driving bevel gear (8) inside the mounting frame (7). The two sides of the mounting frame (7) are rotatably mounted with rotating shafts (9). One end of the rotating shaft (9) is equipped with a driven bevel gear (10) inside the mounting frame (7), and the driving bevel gear (8) and the driven bevel gear (10) mesh with each other. The other end of the rotating shaft (9) is equipped with a spiral blade (11). Five stirring rods (12) are equidistantly mounted on the outer side of the rotating shaft (9). The stirring rods (12) are located in the gaps of the spiral blades (11).

2. The environmentally friendly engineering sludge disposal apparatus according to claim 1, characterized in that: The other end of the rotating shaft (3) is equipped with a drive wheel (13), and the top side of the drying cylinder (1) is equipped with a feed hopper (14). The feed hopper (14) is symmetrically and rotatably mounted with two connecting shafts (15). One of the connecting shafts (15) is equipped with a driven wheel (16) on its outer side. The drive wheel (13) and the driven wheel (16) are connected by a belt (17).

3. The sludge treatment equipment for environmental protection engineering according to claim 2, characterized in that: Crushing rollers (18) are installed on the outside of the connecting shaft (15) and inside the feed hopper (14). A drive gear (19) and a driven gear (20) are respectively installed on one end of the connecting shaft (15), and the drive gear (19) and the driven gear (20) mesh with each other.

4. The sludge treatment equipment for environmental engineering according to claim 3, characterized in that: The drying cylinder (1) has two symmetrically installed mounting cavities (21) on its top side. Each mounting cavity (21) has five air inlet slots (22) inside its top side. A negative pressure motor (23) is installed inside the top side of the mounting cavity (21). Five fan blades (24) are installed at the output end of the negative pressure motor (23). A heating plate (25) is installed at the bottom end of the mounting cavity (21). Several ventilation holes (26) are equidistantly opened through the bottom side of the mounting cavity (21) and penetrating the top side of the drying cylinder (1).

5. The sludge treatment equipment for environmental protection engineering according to claim 4, characterized in that: The bottom side of the drying cylinder (1) is connected to a discharge pipe (27). A sliding groove is provided between the two sides of the top end of the discharge pipe (27). A baffle (28) is slidably installed inside the sliding groove. Two support legs (30) are symmetrically installed on the bottom side of the drying cylinder (1). A cylinder (29) is installed on one side of the support leg (30). The working end of the cylinder (29) is fixedly connected to one side of the baffle (28).

6. The sludge treatment equipment for environmental engineering according to claim 5, characterized in that: A control panel (31) is installed on one side of the drying cylinder (1). The control panel (31) is electrically connected to the electrical components inside the device. The control panel (31) is used to control the operation of the electrical components inside the device.

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