Device for biologically treating sludge

Abstract

The utility model relates to the field of biological sludge process reduction, and is characterized in that a biological sludge treatment device is disclosed and comprises a treatment pond, sliding assemblies are arranged on the front side and the rear side of the treatment pond, a supporting frame is fixedly connected to the outer sides of the sliding assemblies, and a discharging bin is fixedly connected to the inner side of the supporting frame; a power assembly is fixedly connected to the front face of the discharging bin, a rotating shaft is fixedly connected to the back face of the power assembly, stirring blades are fixedly connected to the periphery of the rotating shaft, a rotating gear is fixedly connected to the periphery of the rotating shaft, a transmission gear is meshed with the bottom of the rotating gear, and a rotating column is fixedly connected into the transmission gear. According to the device, the connecting rod, the rotating cylinder and the electric sliding rail are arranged to drive the discharging bin to slide left and right at a constant speed, meanwhile, the rotating motor is started, the stirring blades smash sludge, meanwhile, the discharging plate regularly swings, and therefore the scattered sludge evenly falls into a treatment pond, the working efficiency is improved, and the working effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of biological sludge process reduction, especially relates to a device for biological treatment of sludge. BACKGROUND

[0002] The biological sludge process reduction technology is a technical means aiming to reduce the amount of sludge and improve the efficiency of sludge treatment. The core of the biological sludge process reduction technology lies in utilizing the metabolic characteristics of organisms, regulating the environmental conditions in the sludge treatment process, promoting the metabolic activities of microorganisms, thereby accelerating the decomposition and transformation of organic matter in the sludge, reducing the amount of sludge, and realizing the reduction and resource utilization of sludge through the optimization of the sludge treatment process.

[0003] Among them, the method of treating sludge by using earthworms is a convenient and low-cost biological sludge treatment method, and can realize the stabilization, reduction, harmlessness and resource utilization of sludge. Therefore, the method has broad application prospects in the field of sewage treatment and sludge treatment, and thus a device for biological treatment of sludge is needed.

[0004] Currently, when treating sludge by using earthworms, the soil containing a large amount of earthworms is usually first spread on the bottom of the treatment tank, and then the sludge is manually spread and spread above the soil containing a large amount of earthworms, so that the earthworms can quickly enter the inside of the sludge for feeding and reduce the amount of sludge. However, in actual work, manually spreading and spreading the sludge not only makes the work more laborious, but also makes it difficult to evenly distribute the sludge above the earthworms, and the work efficiency is low and the work effect is poor. Therefore, a device for biological treatment of sludge is proposed to solve the above problems. Utility model content

[0005] In order to make up for the above shortcomings, the utility model provides a device for biological treatment of sludge, aiming at improving the problem that it is difficult to evenly distribute the sludge above the earthworms by manually spreading the sludge in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a device for biological treatment of sludge, including treatment pool, the both sides of treatment pool are provided with sliding assembly, sliding assembly outside fixedly connected with support frame, the inboard of support frame is fixedly connected with the hopper, the front of hopper is fixedly connected with power component, the back of power component is fixedly connected with rotating shaft, the outer periphery of rotating shaft is fixedly connected with stirring vane, the outer periphery of rotating shaft is fixedly connected with rotating gear, the bottom of rotating gear is engaged with transmission gear, the inside fixedly connected with rotating column of transmission gear, the outer periphery of rotating column is fixedly connected with connecting rod, the outer periphery front of connecting rod is fixedly connected with rotating cylinder, the bottom of hopper is provided with the hopper, the inside rotatably connected with swing axle of hopper, the outer periphery of swing axle is fixedly connected with the hopper plate, the outer periphery of swing axle is fixedly connected with connecting plate, the inside of connecting plate is provided with adjusting hole, the inside of adjusting hole is connected with rotating cylinder through connecting component.

[0007] Preferably, the connecting component includes a threaded sleeve, the top end of the threaded sleeve is hinged to the outer periphery of the rotating cylinder, the inside of the threaded sleeve is threadedly connected with a threaded column, the bottom end of the threaded column is rotatably connected with a threaded seat, and the inside of the threaded seat is threadedly connected with a bolt.

[0008] Preferably, the sliding assembly includes an electric sliding rail, the inside of the electric sliding rail is fixedly connected to the outside of the treatment pool, and the outer periphery of the electric sliding rail is provided with an electric sliding block, and the outside of the electric sliding block is fixedly connected to the inside of the support frame.

[0009] Preferably, the power component includes a motor support, the back of the motor support is fixedly connected to the front of the hopper, the bottom surface of the motor support is fixedly connected with a rotating motor, and the front of the rotating shaft is fixedly connected to the output shaft on the back of the rotating motor.

[0010] Preferably, the outer periphery of the rotating shaft is rotatably connected to the inside of the hopper, and the back of the rotating column is rotatably connected to the front of the hopper.

[0011] Preferably, the hopper plate is located inside the hopper, and the hopper plate and the connecting plate are in the same direction.

[0012] In addition, the adjusting hole is provided with several groups, which are linearly and equidistantly distributed inside the connecting plate. The outer periphery of the bolt is slidably connected to the inside of the adjusting hole.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through setting connecting rod, rotating cylinder, electric slide rail drives the uniform speed left and right sliding of discharging bin, simultaneously opens rotating motor, makes the sludge broken by stirring vane and makes the regular swing of discharging plate, so that the splashed sludge evenly falls into treatment pool, improves work efficiency, improves work effect.

[0015] 2. The utility model discloses through setting threaded rod, bolt can conveniently adjust the length of connecting assembly, simultaneously adjust the connecting position between connecting assembly and connecting plate, so that can conveniently adjust swing amplitude to adapt to different operation requirement. DRAWINGS

[0016] Figure 1 It is the whole top surface schematic diagram of the device for biological treatment sludge that the utility model proposes;

[0017] Figure 2 It is the discharging bin front face partial schematic diagram of the device for biological treatment sludge that the utility model proposes;

[0018] Figure 3 It is the discharging bin right side cross section schematic diagram of the device for biological treatment sludge that the utility model proposes;

[0019] Figure 4 It is the left side schematic diagram of the connecting assembly of the device for biological treatment sludge that the utility model proposes.

[0020] Legend:

[0021] 1, treatment pool;2, electric slide rail;3, electric slide block;4, support frame;5, discharging bin;6, motor support;7, rotating motor;8, rotating shaft;9, stirring vane;10, rotating gear;11, transmission gear;12, rotating column;13, connecting rod;14, rotating cylinder;15, threaded sleeve;16, threaded column;17, threaded seat;18, bolt;19, discharging port;20, swing shaft;21, discharging plate;22, connecting plate;23, adjusting hole. SPECIFIC IMPLEMENTATION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0023] Refer to Figures 1-2The utility model provides an embodiment: a device of biological treatment sludge, including to sludge carries out biological reduction treatment's treatment pool 1, both sides of treatment pool 1 before and after are provided with a group of sliding assembly, and sliding assembly includes electric slide rail 2, and electric slide rail 2 is provided with two groups, and symmetrically sets up before and after the both sides of treatment pool 1, and the inside fixed connection of electric slide rail 2 is in the outside of treatment pool 1, and the outer periphery of electric slide rail 2 is provided with electric sliding block 3, and electric sliding block 3 can slide in the outer periphery left and right of electric slide rail 2, and the outside fixed connection of sliding assembly has the support frame 4 of starting support fixed effect, and the inside fixed connection of electric sliding block 3 is in the outside of support frame 4, and the inside fixed connection of support frame 4 has the discharge bunker 5, and the front fixed connection of discharge bunker 5 has power component, and power component includes the motor bracket 6 of starting fixed support effect, and the front fixed connection of motor bracket 6 is in the discharge bunker 5, and the bottom fixed connection of motor bracket 6 has the rotating motor 7 of providing rotation power, and the back fixed connection of power component has the rotating shaft 8, and the front fixed connection of rotating shaft 8 is on the output shaft on the back of rotating motor 7, and opens rotating motor 7, and the output shaft of rotating motor 7 drives rotating shaft 8 to rotate, and the outer periphery rotation connection of rotating shaft 8 is in the inside of discharge bunker 5, and the outer periphery fixed connection of rotating shaft 8 has the stirring vane 9, and the stirring vane 9 is provided with several groups, and evenly distributes in the outer periphery of rotating shaft 8, and the stirring vane 9 can scatter sludge.

[0024] Referring to Figures 2-3The outer periphery of the rotating shaft 8 is fixedly connected with a rotating gear 10, the bottom of the rotating gear 10 is engaged with a transmission gear 11, the rotating gear 10 can drive the transmission gear 11 to rotate, the inside of the transmission gear 11 is fixedly connected with a rotating column 12 which plays a supporting and connecting role, the back of the rotating column 12 is rotatably connected to the front of the discharging bin 5, the outer periphery of the rotating column 12 is fixedly connected with a connecting rod 13, the outer periphery of the front of the connecting rod 13 is fixedly connected with a rotating cylinder 14, so that the rotating cylinder 14 is located at a non-circular center position of the rotating column 12, the bottom of the discharging bin 5 is provided with a discharging port 19 for facilitating discharging, the inside of the discharging bin 5 is rotatably connected with a swinging shaft 20 which plays a fixed connecting role, the outer periphery of the swinging shaft 20 is fixedly connected with a discharging plate 21, the discharging plate 21 is located inside the discharging port 19, when the discharging plate 21 swings along the swinging shaft 20, sludge will be spilled from the gap between the two sides of the discharging plate 21 and the discharging port 19, the outer periphery of the swinging shaft 20 is fixedly connected with a connecting plate 22, the discharging plate 21 and the connecting plate 22 are in the same direction, the inside of the connecting plate 22 is provided with adjusting holes 23 for facilitating adjustment of the swinging amplitude, the adjusting holes 23 are arranged in several groups and are linearly and equidistantly distributed in the inside of the connecting plate 22, the inside of the adjusting hole 23 is connected with the rotating cylinder 14 through a connecting assembly. When it is desired to conveniently scatter and uniformly spread sludge in the treatment tank 1, the sludge is first put into the inside of the discharging bin 5, then the rotating motor 7 is started to drive the stirring blade 9 to rotate and scatter the soil, at the same time, the rotating cylinder 14 is driven to rotate around the circular center of the rotating column 12, the rotating cylinder 14 drives the connecting plate 22 to swing through the connecting assembly, the connecting plate 22 drives the swinging shaft 20 to swing, the swinging shaft 20 drives the discharging plate 21 to make regular swinging movement inside the discharging port 19, so that the sludge is uniformly spilled from the two sides of the discharging plate 21, at the same time, the electric sliding rail 2 is started, and the electric sliding block 3 makes uniform left-right movement on the electric sliding rail 2, so that the sludge is uniformly spread in the inside of the treatment tank 1.

[0025] With reference to Figures 2-4 The connecting assembly comprises a threaded sleeve 15, the top end of the threaded sleeve 15 is hinged to the outer periphery of the rotating cylinder 14, the inside of the threaded sleeve 15 is threadedly connected with a threaded column 16, the threaded column 16 is rotated, and can move along the inner wall of the threaded sleeve 15 to adjust the length of the connecting assembly as a whole, the bottom end of the threaded column 16 is rotatably connected with a threaded seat 17, the inside of the threaded seat 17 is threadedly connected with a bolt 18, the bolt 18 is rotated, and can move along the inner wall of the threaded seat 17, the outer periphery of the bolt 18 is slidably connected in the inside of the adjusting hole 23, and the connecting assembly is arranged on the connecting plate 22. When it is desired to adjust the swinging rate of the discharging plate 21, the bolt 18 is unscrewed to release the limiting of the threaded seat 17 to the connecting plate 22, to ensure that the connecting plate 22 and the connecting rod 13 are both horizontally placed on the same side, the threaded column 16 is rotated to adjust the length of the connecting assembly, and the connecting assembly is rotated to make the threaded seat 17 opposite to another adjusting hole 23, at this time, the bolt 18 is screwed to fix the connecting assembly to the connecting plate 22 again, so that the swinging amplitude is conveniently adjusted to adapt to different operation requirements.

[0026] In another specific scenario, the following provides alternative or supplementary exemplary illustrations of the above-described apparatus, which are not intended to be uniquely defining in order to meet the requirement of patent law for adequate disclosure:

[0027] 1. Treatment tank (1)

[0028] Shape and size: cuboid, length 5000mm, width 3000mm, height 2000mm, size tolerance strictly controlled within ±5mm. The bottom surface adopts high-precision milling process, flatness controlled within ±2mm, ensuring stable placement of the equipment and avoiding tilting of the treatment tank due to uneven bottom surface, which affects sludge treatment effect.

[0029] Material: 304 stainless steel with chromium content not less than 18% and nickel content not less than 8%. Argon arc welding is adopted for welding process, argon gas is filled for protection during welding process to prevent weld oxidation, and ultrasonic flaw detector is used for flaw detection, with sensitivity reaching level II standard, ensuring no cracks, pores and other defects. The welded part is polished, with roughness reaching Ra0.8, enhancing corrosion resistance and prolonging service life of the treatment tank.

[0030] Installation and foundation: installed on a C30 labeled concrete foundation, with M20 anchor bolts pre-buried in the foundation, bolt material Q345, depth 500mm, bottom hook length 100mm, increasing anchoring force. The treatment tank bottom reserved hole precisely matches the anchor bolt, and is fastened through high-strength nuts, with nut tightening torque 150-180N·m, ensuring stable installation of the treatment tank.

[0031] 2. Sliding assembly

[0032] Electric sliding rail (2): MGN12C type, length 6000mm. The sliding rail adopts high-precision grinding process, with straightness error within ±0.5mm in the full length range, ensuring smooth operation. The sliding block mounting surface is ground flat, with flatness ±0.1mm, ensuring close fit with the electric sliding block. Ball screw transmission is adopted, with ball diameter 8mm, material GCr15 bearing steel, hardness HRC60-65, screw lead 10mm, screw material 40Cr alloy steel, after quenching and tempering treatment, hardness HRC28-32, ensuring transmission accuracy.

[0033] Electric sliding block (3): MGC12C type, matched with the electric sliding rail. The motor adopts a DC brushless motor, with rated power 100W and rated torque 0.5N·m, and the motor interior adopts rare earth permanent magnet material, with stable magnetic flux. Connected with the screw through a gear reduction mechanism, with reduction ratio 5:1, gear material 20CrMnTi, after carburizing and quenching treatment, gear surface hardness HRC58-62. The running speed is steplessly adjustable within 0-100mm / s range, with speed fluctuation controlled within ±5%, ensuring uniform movement of the discharge bin.

[0034] Installation and commissioning: The electric slide rail is fixed on the mounting bracket on both sides of the treatment tank by M8x30 inner hexagonal bolts. The mounting bracket is made of 10mm thick Q235 steel plate and is welded to the treatment tank. The welding method is carbon dioxide gas shielded welding. After the electric slide rail is installed, the levelness and perpendicularity are detected using a level and a right-angle ruler to ensure smooth operation on the slide rail without jamming. During commissioning, the motor is tested under no load and load to ensure that the operating parameters meet the requirements.

[0035] 3. Support frame (4)

[0036] Shape and structure: "L" type structure, welded from 40mmx40mmx3mm square steel. Full welding process is used at the welding site, with a weld height of not less than 3mm. The welding sequence follows the principle of symmetrical welding to reduce welding deformation. Stress relief annealing is performed after welding at a temperature of 550-600°C for 2-3 hours to eliminate welding stress and prevent deformation.

[0037] Height and installation: The height is 1500mm, the top installation plane is milled, and the levelness is ±0.5mm to ensure stable installation of the discharge bin. It is fixed to the ground by M16x400 foundation bolts, with Q345 material and C25 concrete foundation to ensure firm connection.

[0038] 4. Discharge bin (5)

[0039] Shape and size: Rectangular cuboid with a top opening, 4000mm long, 2000mm wide and 1000mm high. Each edge is processed by numerical control cutting, with a straightness error of within ±3mm to ensure regular overall shape. The bottom is made of 10mm thick 304 stainless steel plate, and the side plate is made of 8mm thick 304 stainless steel plate. The surface roughness of the plate reaches Ra0.4.

[0040] Material and manufacturing process: 304 stainless steel, same welding process as the treatment tank. The inside is electrolytically polished to a roughness of Ra1.6 for easy sludge sliding. The top edge is edge rolled with a radius of 10mm. The edge rolling is processed by a special edge rolling die through a press to enhance the structural strength.

[0041] Installation and connection: Connected to the support frame by M12x30 high-strength bolts with a 8.8 grade and a 300mm spacing to ensure firm connection. The bolts are pre-tightened during installation with a pre-tightening force of 30-40N.m.

[0042] 5. Power assembly

[0043] Motor support (6): made of 5mm thick Q235 steel plate, processed by numerical control laser cutting, cutting accuracy reaches ±0.5mm. The surface is treated with anti-rust paint, the primer is epoxy zinc-rich primer, the paint layer thickness is not less than 30μm, the topcoat is acrylic polyurethane topcoat, the paint layer thickness is not less than 40μm. It is connected with the discharge bin by welding, and the welding part is polished to ensure the surface flatness.

[0044] Rotary motor (7): model Y100L-2, power 3kW, speed 2880r / min. The diameter of the motor shaft is 28mm, the keyway size is 8mm×7mm, and the motor shaft is connected with the rotating shaft by a flat key, the key is made of 45 steel with a hardness of HRC40-45. The motor is installed on the motor support through a shock pad made of rubber with a Shore hardness of 60HA to effectively reduce the vibration during motor operation. The motor needs to be tested for insulation before operation, and the insulation resistance is not less than 5MΩ.

[0045] 6. Rotating shaft (8)

[0046] Material and processing: 45 steel, after quenching and tempering treatment, the hardness reaches HRC22-25. The diameter is 40mm, the tolerance is h6, and the cylindrical error is not more than ±0.02mm. The length is 2200mm, processed by numerical control lathe, the straightness error is not more than ±0.5mm in the full length range.

[0047] Bearing installation: two ends install deep groove ball bearing 6208, the bearing and the shaft are matched by transition fit, the tolerance is H7 / js6. The bearing seat is made of cast iron, connected with the discharge bin by M10×20 bolts, the bolt material is 8.8 grade, the spacing is 150mm. During installation, the bearing is lubricated with lithium-based grease with a drop point not less than 180℃.

[0048] 7. Stirring blade (9)

[0049] Shape and size: propeller structure, blade length 300mm, width 80mm, inclination angle 45°. The blade is made of 5mm thick 304 stainless steel plate, the stamping die is made of Cr12MoV die steel, the hardness after heat treatment reaches HRC58-62. The surface is polished, the roughness reaches Ra1.6.

[0050] Quantity and installation: evenly distributed in 6 groups, connected with the rotating shaft by welding, the welding process uses argon arc welding, the welding part is tested for defects to ensure the welding quality. The angle deviation between adjacent stirring blades is controlled within ±1° to ensure uniform stirring effect. During installation, the stirring blade is tested for dynamic balance, the unbalance is not more than 5g·cm.

[0051] 8. Rotating gear (10)

[0052] Module and tooth number: the module is 3, the tooth number is 20, and the pitch diameter is 60 mm. The addendum circle diameter is 66 mm, and the dedendum circle diameter is 52.5 mm. The tooth surface precision grade is 7, and the gear is processed by grinding, with a cumulative total deviation of tooth spacing not more than ±0.03 mm.

[0053] Material and treatment: 40Cr alloy steel, after quenching treatment, the hardness reaches HRC45-50. The tooth surface is ground, the roughness reaches Ra0.8, and the transmission accuracy and wear resistance of the gear are improved. The quenching heating temperature is 850-870℃, the holding time is 30-40 minutes, and oil quenching is used.

[0054] Installation and cooperation: installed on the rotating shaft through key connection, the key size is 10mm×8mm, and the material is 45 steel. The cooperation tolerance with the rotating shaft is H7 / k6, ensuring reliable connection. During installation, the key and keyway are cleaned and lubricated to prevent seizure.

[0055] 9. Transmission gear (11)

[0056] Module and tooth number: the module is 3, the tooth number is 30, and the pitch diameter is 90 mm. The addendum circle diameter is 96 mm, and the dedendum circle diameter is 82.5 mm. The tooth surface precision grade is the same as the rotating gear, which is 7, and the gear is processed by grinding, with a cumulative total deviation of tooth spacing not more than ±0.035 mm.

[0057] Material and treatment: 40Cr alloy steel, after quenching treatment, the hardness reaches HRC45-50. The tooth surface is ground, the roughness reaches Ra0.8, and the transmission is stable. The quenching process is the same as the rotating gear.

[0058] Installation and cooperation: installed on the rotating column through key connection, the key size is 12mm×8mm, and the material is 45 steel. The cooperation tolerance with the rotating column is H7 / k6, ensuring transmission efficiency. During installation, the gear is adjusted to ensure that the tooth side clearance is between 0.1-0.2 mm.

[0059] 10. Rotating column (12)

[0060] Material and size: 45 steel, diameter is 30 mm, tolerance is h6, processed by precision grinding, cylindrical error is not more than ±0.02 mm. The length is 100 mm, the center hole is processed at both ends, and the center hole diameter is 6 mm, which is convenient for processing and installation.

[0061] Installation and support: one end is installed on the bearing seat in front of the discharge bin through bearing, the bearing model is 6206, and the cooperation tolerance with the bearing seat is H7 / js6. The other end is connected with the transmission gear through the key, ensuring stable transmission. During installation, the perpendicularity of the rotating column is detected, and the perpendicularity error is not more than ±0.1 mm.

[0062] 11. Connecting rod (13)

[0063] Shape and size: Rectangular cross-section rod-like structure, cross-section size is 20mm x 30mm, length is 200mm. Length tolerance is ±0.5mm, cross-section size tolerance is ±0.2mm. Processed by CNC machining center to ensure dimensional accuracy.

[0064] Material and processing: Q235 steel, both ends are processed with pin holes, pin hole diameter is 10mm, tolerance is H7, connected with rotating cylinder and connecting plate through pin shaft, pin shaft material is 45 steel, surface is quenched, hardness is HRC40-45. After processing, the pin hole is reamed, the surface roughness reaches Ra0.8.

[0065] 12. Rotating cylinder (14)

[0066] Material and size: 45 steel, diameter is 20mm, tolerance is h6, processed by precision grinding, cylindrical error is not more than ±0.02mm. Length is 30mm, one end is processed with threaded hole, thread size is M12, used for connecting threaded sleeve.

[0067] Installation and position: Installed at one end of the connecting rod, offset from the center of the rotating cylinder, eccentric distance is 15mm, fastened by M12 x 20 bolts, bolt material is 8.8 grade, to ensure accurate position. When installing, measure and adjust the eccentric distance, error is not more than ±0.2mm.

[0068] 13. Connecting assembly

[0069] Threaded sleeve (15): Length is 150mm, inner diameter is 16mm, outer diameter is 20mm, thread size is M16 x 1.5. Made of 45 steel, surface is galvanized, galvanized layer thickness is not less than 8μm, to prevent rust. Thread processing uses CNC lathe to ensure thread accuracy.

[0070] Threaded column (16): Length is 200mm, outer diameter is 14mm, thread size is M14 x 1.5. Cooperate with threaded sleeve, adjust length by rotating, adjustment range is ±50mm. Hexagonal head is processed at both ends of the threaded column for easy operation.

[0071] Threaded seat (17): Made of 45 steel, internal thread cooperates with bolt, thread size is M12. Bottom surface is processed with plane, flatness is ±0.1mm, to facilitate adhesion with connecting plate. After processing, the threaded seat is heat treated, hardness reaches HRC28-32.

[0072] Bolt (18): M12 specification, 50mm length, 35 steel material, black surface treatment, increase corrosion resistance. Head with internal hexagonal structure, easy to install and remove. Internal hexagonal size is 10mm, tolerance is ±0.1mm.

[0073] 14. Discharge port (19)

[0074] Shape and size: rectangular, 1500mm long, 500mm wide. The edge is chamfered with a size of 5mm x 45° to prevent scratching the sludge. Numerical control cutting is used for processing, and the size accuracy is controlled within ±2mm.

[0075] Position and installation: located at the center of the discharge bin bottom, connected with the discharge bin by welding, the welding method is argon arc welding, and the weld is polished to ensure smooth surface for sludge falling. When installing, the levelness of the discharge port is detected, and the levelness error is not more than ±0.5mm.

[0076] 15. Swing shaft (20)

[0077] Material and size: 45 steel, diameter 25mm, tolerance h6, precision grinding processing, cylindrical error not more than ±0.02mm. Length is 2200mm, processed by numerical control lathe, straightness error within the full length is not more than ±0.5mm.

[0078] Installation and support: both ends are installed on the bearing seat inside the discharge bin through bearings, bearing model is 6205, and the fitting tolerance with bearing seat is H7 / js6. The bearing seat is made of cast iron, connected with the discharge bin through M8x20 bolts, the bolt material is 8.8 grade, the spacing is 120mm. When installing, the swing shaft is lubricated with calcium-based grease, the drop point is not less than 150℃.

[0079] 16. Discharge plate (21)

[0080] Shape and size: rectangular, 1400mm long, 400mm wide, thickness 5mm. The surface is polished, the roughness reaches Ra1.6, which is convenient for sludge sliding. Numerical control shearing machine is used for cutting, and the size accuracy is controlled within ±2mm.

[0081] Material and installation: 304 stainless steel, connected with the swing shaft by welding, the welding process uses argon arc welding, and the welded joint is detected to ensure the welding quality. The gap with the discharge port is controlled within 5-10mm to ensure smooth sludge falling. When installing, the perpendicularity of the discharge plate is detected, and the perpendicularity error is not more than ±0.5mm.

[0082] 17. Connecting plate (22)

[0083] Shape and size: rectangular, 500mm long, 200mm wide, 8mm thick. The surface flatness is ±0.2mm, which ensures close fit with the connecting assembly. Numerical control machining center is used for processing, ensuring dimensional accuracy.

[0084] Material and installation: 304 stainless steel, connected with the swing shaft through welding, the welding is polished to ensure the surface flatness. The adjusting hole (23) is 14mm in diameter, H7 in tolerance, linearly and equidistantly distributed in 5 groups, the distance between adjacent adjusting holes is 80mm, and the tolerance is ±0.2mm. When installed, the adjusting hole is reamed, and the surface roughness reaches Ra0.8.

[0085] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. An apparatus for biological treatment of sludge, comprising a treatment tank (1), characterised in that: The processing pool (1) is provided with sliding assemblies on the front and back sides, sliding assemblies are fixedly connected with support frames (4) outside, the support frames (4) are fixedly connected with the discharge bin (5) inside, the discharge bin (5) is fixedly connected with the power assembly on the front, the power assembly is fixedly connected with the rotating shaft (8) on the back, the rotating shaft (8) is fixedly connected with the stirring blade (9) on the outer periphery, the rotating shaft (8) is fixedly connected with the rotating gear (10) on the outer periphery, the rotating gear (10) is meshed with the transmission gear (11) on the bottom, the transmission gear (11) is fixedly connected with the rotating column (12) inside, the rotating column (12) is fixedly connected with the connecting rod (13) on the outer periphery, the connecting rod (13) is fixedly connected with the rotating cylinder (14) on the outer periphery on the front, the discharge bin (5) is provided with the discharge port (19) on the bottom, the discharge bin (5) is rotatably connected with the oscillating shaft (20) inside, the oscillating shaft (20) is fixedly connected with the discharge plate (21) on the outer periphery, the oscillating shaft (20) is fixedly connected with the connecting plate (22) on the outer periphery, the connecting plate (22) is provided with the adjusting hole (23) inside, and the adjusting hole (23) is connected with the rotating cylinder (14) through the connecting assembly inside.

2. A device for biological treatment of sludge according to claim 1, characterized in that The connecting assembly comprises a threaded sleeve (15), the threaded sleeve (15) is hinged on the outer periphery of the rotating cylinder (14) on the top, the threaded sleeve (15) is screw-connected with the threaded column (16) inside, the threaded column (16) is rotatably connected with the threaded seat (17) on the bottom, and the threaded seat (17) is screw-connected with the bolt (18) inside.

3. A device for biological treatment of sludge according to claim 1, characterized in that: The sliding assembly comprises an electric sliding rail (2), the inner side of the electric sliding rail (2) is fixedly connected with the outer side of the processing pool (1), and the electric sliding rail (2) is provided with the electric sliding block (3) on the outer periphery.

4. The apparatus for biological treatment of sludge as claimed in claim 1, wherein: The power assembly comprises a motor support (6), the motor support (6) is fixedly connected with the front of the discharge bin (5) on the back, the motor support (6) is fixedly connected with the rotating motor (7) on the bottom, and the rotating shaft (8) is fixedly connected with the output shaft on the back of the rotating motor (7) on the front.

5. The apparatus for biological treatment of sludge as claimed in claim 1, wherein: The rotating shaft (8) is rotatably connected inside the discharge bin (5) on the outer periphery, and the rotating column (12) is rotatably connected on the front of the discharge bin (5) on the back.

6. The apparatus for biological treatment of sludge as claimed in claim 1, wherein: The discharge plate (21) is located inside the discharge port (19), and the discharge plate (21) is in the same direction as the connecting plate (22).

7. The apparatus for biological treatment of sludge as claimed in claim 1, wherein: The adjusting hole (23) is provided with a plurality of groups, which are linearly and equidistantly distributed inside the connecting plate (22).

8. A device for biological treatment of sludge according to claim 2, characterized in that: The bolt (18) is slidably connected inside the adjusting hole (23) on the outer periphery.

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