A sewage treatment equipment for steel ball ultrasonic cleaning wastewater

Abstract

The present application relates to sewage treatment equipment technical field, specifically to a kind of steel ball ultrasonic cleaning wastewater sewage treatment equipment, including installation box seat, mixing tank and sludge dewatering machine shell, the sludge dewatering machine shell is fixedly installed in the upper end of installation box seat with mixing tank. By optimizing the structure of the screw shaft assembly, integrating the air guide and air guide, an active oxygen gas flow guide system is formed, which allows the gas to diffuse along a spiral path and release evenly to the sludge layer, oxidizing and decomposing harmful substances such as hydrogen sulfide. It can also assist in spraying and flushing the stacked screw assembly and spiral plate body to prevent clogging and assist in cleaning. Through the cooperation of the screw shaft assembly and the sludge extrusion assembly, the gap at the sludge discharge port is adjusted, and the sludge is efficiently extruded, the sludge dewatering efficiency and the quality of the cake are improved, and the gap between the extrusion back plate is further stabilized through the auxiliary pneumatic of the air guide, which improves the efficiency of the sewage sludge dewatering.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment equipment, in particular to a sewage treatment equipment for steel ball ultrasonic cleaning wastewater. BACKGROUND

[0002] As the core component of precision mechanical parts, the surface cleanliness of steel balls directly affects the vibration, noise and service life of equipment. During the machining process of steel balls, cutting fluid, rust-proof oil and lubricating oil are used, which are stripped and dispersed into wastewater during ultrasonic cleaning. However, the wastewater generated during ultrasonic cleaning contains high concentrations of pollutants, usually containing grease, surfactants, heavy metal ions (such as chromium and nickel), and small particles falling off the surface of steel balls. If not treated directly, such wastewater will cause serious pollution to water bodies, soil and ecosystems, and also violate environmental regulations. In order to remove oil, suspended solids and metal ions in wastewater, coagulants (such as PAC) and flocculants (such as PAM) are usually added. These agents combine with pollutants to form flocs, which settle in the sedimentation tank to produce chemical sludge, the main components of which are metal hydroxides, oils, organic matter and coagulant residues. Therefore, sludge thickener is necessary for steel ball ultrasonic cleaning wastewater treatment. The sludge thickener can reduce the water content of sludge to 95%-97% and reduce the volume by 60%-80% through gravity settling or mechanical separation.

[0003] In the prior art, such as a stacked screw type sludge dewatering machine with publication number CN221344353U, the stacked screw dewatering blades are arranged with gradually decreasing spiral intervals from right to left to gradually increase the extrusion force on the sludge, so that the sludge is rapidly concentrated after entering the end of the stacked screw rotating rod due to the increasing dewatering extrusion force, and is pushed into the dewatering section for dewatering. The water in the sludge can be completely squeezed out, and the stacked screw knife rod arranged between the gaps of the stacked screw dewatering blades can stir and crush the substances present in the sludge, thereby preventing the substances from winding around the stacked screw rotating rod and the stacked screw dewatering blades and the problem of a certain amount of water present in the sludge, and further improving the efficiency of sludge dewatering.

[0004] In order to solve the problem of small force after dewatering of sludge in the existing equipment, the adjustment method of spiral interval is adopted for treatment. However, during the actual operation of the stacked screw type sludge dewatering machine, harmful gases such as hydrogen sulfide and ammonia in the sludge, as well as volatile organic compounds, are released due to anaerobic decomposition or mechanical extrusion, resulting in a poor operating environment and potential safety hazards, affecting the effect of sewage treatment.

[0005] Therefore, the present application provides a sewage treatment equipment for steel ball ultrasonic cleaning wastewater to solve the problem that harmful gases such as hydrogen sulfide and ammonia in the sludge, as well as volatile organic compounds, are released due to anaerobic decomposition or mechanical extrusion during the operation of the existing stacked screw type sludge dewatering machine, resulting in a poor operating environment and potential safety hazards, affecting the effect of sewage treatment. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application aims to provide a sewage treatment equipment for steel ball ultrasonic cleaning wastewater to solve the problems presented in the background.

[0007] To achieve the above object, the present application provides the following technical scheme: a sewage treatment equipment for steel ball ultrasonic cleaning wastewater, comprising a mounting box seat, a mixing box and a sludge dewatering machine shell, the sludge dewatering machine shell and the mixing box are both fixedly installed at the upper end of the mounting box seat, the lower end of the sludge dewatering machine shell is connected with a water collecting tank, the side of the sludge dewatering machine shell close to the mixing box is fixedly connected with a feeding adapter cylinder, the feeding adapter cylinder is fixedly installed on the outer surface of one side of the sludge dewatering machine shell through bolts, the inner side of the sludge dewatering machine shell is provided with a wastewater sludge dewatering mechanism, the wastewater sludge dewatering mechanism comprises a limiting assembly, a spiral shaft assembly and a sludge extrusion assembly, the limiting assembly comprises a limiting partition plate, a limiting ring, a guide rod and a stacked screw assembly, the spiral shaft assembly comprises a hollow shaft body and a spiral plate body, the spiral plate body is spirally distributed on the outer side of the hollow shaft body, the outer surface of the spiral plate body is movably abutted with the inner side of the stacked screw assembly, the inner side of the hollow shaft body is provided with a gas guide piece and an air guide piece, the sludge extrusion assembly comprises a sleeving conical ring body, an extrusion back plate and a limiting rotating ring, the inner side of the limiting rotating ring is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with one side of the extrusion back plate, one end of the hollow shaft body away from the feeding adapter cylinder is provided with a driving assembly, the driving assembly comprises a sludge discharging frame plate, a driving machine group and a shaft sleeve, the hollow shaft body is fixedly connected with the output shaft of the driving machine group through the shaft sleeve.

[0008] Preferably, the gas guide piece comprises a gas guide pipe, a conical end pipe and a center nozzle, the center nozzle is arranged in the center of the inner side of the conical end pipe, one end of the gas guide pipe extends to the outside of the feeding adapter cylinder, a rotary joint is arranged outside the input end of the gas guide pipe, the rotary joint is rotatably connected with the inner wall of the feeding adapter cylinder, the other end of the rotary joint is fixedly connected with a hose, and the input end of the hose is provided with a gas tank; the gas guide pipe penetrates through the center of the hollow shaft body, and a plurality of groups of uniformly distributed conical nozzles are uniformly arranged on the outer ring inner wall of the gas guide pipe, a triangular strip plate is arranged between two groups of the uniformly distributed conical nozzles, and the triangular strip plate is fixedly installed outside the gas guide pipe.

[0009] Preferably, the gas guide pipe is fixedly connected with the conical end pipe away from the one end of the feeding adapter cylinder, the conical end pipe is throughly connected with the gas guide pipe, the inner side surface of the conical end pipe is fixedly connected with the triangular rib plate, the triangular rib plate is provided with multiple groups and is circularly arranged about the central axis of the conical end pipe, the inner side of the triangular rib plate is fixedly connected with the outer surface of the central nozzle, and the inner side of the central nozzle is threadedly connected with the inner wall of the gas guide pipe.

[0010] Preferably, the air guide member comprises a threaded column and a vane, the outer surface of one end of the threaded column is provided with a male thread, the inner wall of the one end of the hollow shaft body close to the threaded column is provided with a threaded groove matched with the male thread, the vane is rotatably installed on the one end of the threaded column away from the male thread through a bearing, and the inner wall of the one end of the threaded column away from the vane is provided with a stress hole.

[0011] Preferably, the outer ring inner wall of the hollow shaft body is uniformly provided with mounting holes, the inner side of the mounting hole is fixedly installed with a spiral distribution air jet nozzle, the spiral distribution air jet nozzle is adaptively distributed along the spiral path of the spiral plate body, and the inner wall of the one end of the hollow shaft body close to the threaded column is annularly provided with an auxiliary air guide hole.

[0012] Preferably, the sleeve joint conical ring body is fixedly installed on the outer surface of the one end of the hollow shaft body away from the feeding adapter cylinder, the inner wall of the sleeve joint conical ring body is uniformly provided with a butt joint air guide bend groove, the input end of the butt joint air guide bend groove corresponds to the auxiliary air guide hole one by one, the side of the butt joint air guide bend groove away from the auxiliary air guide hole is provided with an expansion straight groove, and the expansion straight groove is throughly connected with the butt joint air guide bend groove.

[0013] Preferably, the inner side of the extrusion back plate is movably abutted with the outer surface of the sludge dewatering machine shell, a gap is formed between the outer side of the extrusion back plate and the sludge dewatering machine shell, the inner ring surface of the extrusion back plate is movably connected with the outer surface of the hollow shaft body, the one side of the extrusion back plate close to the sleeve joint conical ring body is provided with the inner surface slidably connected with the outer surface of the sleeve joint conical ring body, and the inner side surface of the extrusion back plate is fixedly connected with an extrusion plate through bolts.

[0014] Preferably, the limiting partition plate is fixedly installed on the inner side of the sludge dewatering machine shell, the limiting ring is provided with two groups, the two groups of limiting rings are respectively fixedly installed on the inner side walls of the sludge dewatering machine shell, the two ends of the guide rod respectively penetrate the inner walls of the limiting rings, the stacking screw assembly comprises multiple movable rings and fixed rings, the fixed rings are fixedly installed on the guide rod, one group of movable rings is arranged between the two groups of fixed rings, and the inner ring surface of the movable ring is movably abutted with the outer surface of the spiral plate body.

[0015] Preferably, the inner side of the limiting ring is provided with a mud collecting assembly, the mud collecting assembly comprises a mud collecting cone ring, the mud collecting cone ring is composed of a group of cone rings and a plurality of groups of connecting plates and is integrally formed, the outer ring surface of the cone ring is fixedly provided with an ear plate, the inner side surface of the guide rod is provided with an ear plate embedding groove matched with the ear plate, the mud collecting cone ring is fixedly connected with the guide rod through bolts, and the outer ring surface of the mud collecting cone ring is provided with an extrusion cavity between the outer side of the sleeve jointed cone ring body.

[0016] Preferably, a plurality of extrusion holes are uniformly arranged on the inner ring surface of the mud collecting cone ring, and the outer side of the mud collecting cone ring is fixedly provided with a reinforcing rib plate, and the reinforcing rib plate is in one-to-one correspondence with the connecting plates.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The sewage treatment equipment for steel ball ultrasonic cleaning wastewater is provided, the structure of the spiral shaft assembly is optimized, the air guide member and the air guide member are integrated, the active oxygen gas flow guide system is formed, the gas is diffused along the spiral path and uniformly released to the sludge layer, hydrogen sulfide and other harmful substances are oxidized and decomposed, the auxiliary flushing of the spiral stack assembly and the spiral plate body can be performed, the blockage and auxiliary cleaning are avoided, the cooperation of the spiral shaft assembly and the sludge extrusion assembly enables the gap adjustment at the sludge discharge port and the auxiliary efficient extrusion of the sludge, the dewatering efficiency and the quality of the sludge cake are improved, and the air guide member is further assisted by the air guide member, the gap stability between the extrusion back plates is further maintained, and the dewatering efficiency of the sewage sludge is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0020] Figure 2 It is a front structure schematic diagram of the present application;

[0021] Figure 3 It is a side structure schematic diagram of the present application;

[0022] Figure 4 It is Figure 3 a B-B cross-sectional structure schematic diagram of the present application;

[0023] Figure 5 It is Figure 4 an A enlarged structure schematic diagram of the present application;

[0024] Figure 6 It is a disassembly structure schematic diagram of the wastewater sludge dewatering mechanism of the present application;

[0025] Figure 7 It is a B-B enlarged structure schematic diagram of the sludge dewatering machine shell and the limiting assembly of the present application; Figure 3

[0026] ​Figure 8 This is a top view schematic diagram of the connection structure between the drive assembly and the helical shaft assembly of the present invention;

[0027] Figure 9 This is a schematic diagram of the disassembled structure of the spiral shaft assembly of the present invention;

[0028] Figure 10 for Figure 9 A magnified structural diagram at point B;

[0029] Figure 11 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0030] Figure 12 for Figure 11 A magnified structural diagram at point C;

[0031] Figure 13 for Figure 12 A magnified structural diagram at point C1;

[0032] Figure 14 This is a schematic diagram of the separation structure of the mud-collecting component and the guide rod of the present invention;

[0033] Figure 15 This is a three-dimensional structural diagram of the mud-gathering component of the present invention;

[0034] Figure 16 The sludge extrusion assembly of the present invention Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0035] Figure 17 for Figure 16 A magnified structural diagram at point D;

[0036] Figure 18 This is a schematic diagram of the disassembled structure of the extrusion plate and extrusion back plate of the present invention;

[0037] Figure 19 This is a three-dimensional structural diagram of the air intake component of the present invention.

[0038] In the figure: 1, mounting box seat; 2, mixing box; 21, water inlet box; 22, connecting hopper; 23, sealing conduit; 3, sludge dewatering machine shell; 31, limiting partition; 311, limiting ring; 312, guide rod; 3120, ear plate slot; 313, stacking screw assembly; 32, feeding connecting cylinder; 4, water collecting tank; 5, sludge unloading frame plate; 51, drive unit; 52, shaft sleeve; 33, hollow shaft body; 330, spiral distribution air jet; 3300, auxiliary air guide hole; 331, air guide pipe; 3310, uniform distribution cone-shaped spray head; 3311, triangular strip; 332, conical end pipe; 3321, triangular rib plate; 333, center nozzle; 334, threaded column; 3340, stress hole; 335, impeller; 34, spiral plate body; 35, sleeving conical ring body; 350, butt joint air guide bend; 3500, expanded straight slot; 3501, piston rod; 3502, sleeving spring; 36, extrusion back plate; 361, extrusion plate; 37, limiting rotating ring; 371, electric telescopic rod; 38, sludge gathering assembly; 381, sludge gathering conical ring; 3810, extrusion hole; 382, reinforcing rib plate. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme of the present application clear, complete description, and the advantages are more clear and obvious, the following will be further described in detail with the embodiments of the present application combined with the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all embodiments, only to explain the embodiments of the present application, and not for the purpose of limiting the embodiments of the present application, all other embodiments obtained by the person skilled in the art without doing creative work, belong to the scope of protection of the present application.

[0040] Example one, please refer to Figures 1-19The application provides a technical scheme: a sewage treatment equipment for steel ball ultrasonic cleaning wastewater, which comprises a mounting box seat 1, a mixing box 2 and a sludge dewatering machine shell 3, the sludge dewatering machine shell 3 and the mixing box 2 are both fixedly installed at the upper end of the mounting box seat 1, a water collecting tank 4 is connected through the lower end of the sludge dewatering machine shell 3, the upper surface of one side of the mounting box seat 1 is fixedly installed with the mixing box 2, the inner side of the mixing box 2 is provided with a mixing mechanism, one side of the mixing box 2 is fixedly installed with a water inlet tank 21, one side of the mixing box 2 away from the water inlet tank 21 is sealingly connected with a connecting hopper 22, a sealing conduit 23 is connected through the inner wall of the lower side of the connecting hopper 22, a feed connecting cylinder 32 is fixedly connected to the side of the sludge dewatering machine shell 3 close to the mixing box 2, the feed connecting cylinder 32 is fixedly installed on the outer surface of one side of the sludge dewatering machine shell 3 through bolts, the inner side of the sludge dewatering machine shell 3 is provided with a wastewater sludge dewatering mechanism, the wastewater sludge dewatering mechanism comprises a limiting assembly, a spiral shaft assembly and a sludge extrusion assembly, the limiting assembly comprises a limiting partition plate 31, a limiting ring 311, a guide rod 312 and a stacked screw assembly 313, the limiting partition plate 31 is fixedly installed on the inner side of the sludge dewatering machine shell 3, the limiting ring 311 is provided with two groups, the two groups of limiting rings 311 are respectively fixedly installed on the inner side walls of the sludge dewatering machine shell 3, the two ends of the guide rod 312 respectively penetrate the inner walls of the limiting rings 311, the stacked screw assembly 313 comprises multiple movable rings and fixed rings, the fixed rings are fixedly installed on the guide rod 312, one group of movable rings is arranged between the two groups of fixed rings, the inner side surface of the movable ring is movably abutted against the outer surface of a spiral plate body 34; the spiral shaft assembly comprises a hollow shaft body 33 and the spiral plate body 34, the end of the hollow shaft body 33 close to the mixing box 2 is a concentration section, the end of the hollow shaft body 33 away from the mixing box 2 is a dewatering section; the spiral plate body 34 is spirally distributed on the outer side of the hollow shaft body 33, the outer ring inner wall of the hollow shaft body 33 is uniformly provided with mounting holes, the inner side of the mounting holes is fixedly installed with spirally distributed air nozzles 330, the spirally distributed air nozzles 330 are adaptively distributed along the spiral path of the spiral plate body 34; the outer surface of the spiral plate body 34 is movably abutted against the inner side of the stacked screw assembly 313, the inner side of the hollow shaft body 33 is provided with a gas guide part and an air guide part, the gas guide part comprises a gas guide pipe 331, a conical end pipe 332 and a central nozzle 333, the central nozzle 333 is arranged on the central inner side of the conical end pipe 332, one end of the gas guide pipe 331 extends to the outside of the feed connecting cylinder 32; the air guide part comprises a threaded column 334 and an impeller 335; the sludge extrusion assembly comprises a sleeved conical ring body 35, an extrusion back plate 36 and a limiting rotating ring 37, the sleeved conical ring body 35 is fixedly installed on the outer surface of the end of the hollow shaft body 33 away from the feed connecting cylinder 32, the inner side of the extrusion back plate 36 is movably abutted against the outer surface of the sludge dewatering machine shell 3, a gap is formed between the extrusion back plate 36 and the outer side of the sludge dewatering machine shell 3, and the inner ring surface of the extrusion back plate 36 is movably connected with the outer surface of the hollow shaft body 33.The inner side of the limiting swivel ring 37 is fixedly connected with an electric telescopic rod 371, the limiting swivel ring 37 is rotatably installed on the inner side wall of the sludge discharging frame plate 5, the output end of the electric telescopic rod 371 is fixedly connected with one side of the extrusion back plate 36, the end of the hollow shaft body 33 away from the feeding connecting cylinder 32 is provided with a driving assembly, the driving assembly comprises the sludge discharging frame plate 5, a driving unit 51 and a shaft sleeve 52, the driving unit 51 is composed of a motor unit and a speed reducer unit, the driving unit 51 is fixedly installed on the outer side of the sludge discharging frame plate 5, the sludge discharging frame plate 5 is fixedly installed on the outer surface of the side of the sludge dewatering machine shell 3 away from the mixing box 2 through bolts, the shaft sleeve 52 is fixedly installed on the output shaft of the driving unit 51 and is rotatably connected with the inner wall of the sludge discharging frame plate 5, the inner side of the shaft sleeve 52 is clampingly connected with the outer surface of one end of the hollow shaft body 33; the hollow shaft body 33 is fixedly connected with the output shaft of the driving unit 51 through the shaft sleeve 52;

[0041] In the embodiment, by adding a flocculating agent in the mixing box 2, the sludge particles are coagulated into larger flowers by the stirring mechanism, and the dewatering efficiency is enhanced. The pretreated sludge enters the concentration section of the sludge dewatering machine shell 3, under the driving action of the driving unit 51, the hollow shaft body 33 rotates at a low speed of 5-15 r / min, pushing the sludge to move forward, the gap between the fixed ring and the floating ring is 0.5-2 mm, allowing free water to seep out under the action of gravity, the spacing of the spiral plate body 34 gradually decreases along the axial direction, applying axial extrusion force to the sludge, further extruding water, the concentrated sludge enters the dewatering section, the floating ring floats along the axial direction under the driving of the spiral shaft, forming a dynamic filter gap with the fixed ring, continuously removing blockages, avoiding the problem of easy blockage of traditional filter cloth, the filtrate is discharged through the filter gap formed by the floating ring and the fixed ring, and the dewatered mud cake is continuously pushed to the discharge port of the sludge discharging frame plate 5 by the hollow shaft body 33, here the gap between the extrusion back plate 36 and the sludge dewatering machine shell 3 can be adjusted by controlling the extension and retraction of the electric telescopic rod 371, the sludge extrusion gap can be adjusted according to the characteristics of the sludge to adapt to different sludge dewatering requirements; it is worth noting that the structure of the hollow shaft body 33 is optimized and integrated with a gas guiding member and an air guiding member to form an active oxygen gas guiding system, so that the oxygen gas is diffused and uniformly released to the sludge layer through the spiral distribution air jet nozzle 330 along the spiral path, oxidizing and decomposing harmful substances such as hydrogen sulfide, effectively removing the odor and harmful gas generated during the unloading and extrusion of the sludge, and further improving the purification effect of the steel ball ultrasonic cleaning wastewater.

[0042] In the embodiment, by adding a flocculating agent in the mixing box 2, the sludge particles are coagulated into larger flowers by the stirring mechanism, and the dewatering efficiency is enhanced. The pretreated sludge enters the concentration section of the sludge dewatering machine shell 3, under the driving action of the driving unit 51, the hollow shaft body 33 rotates at a low speed of 5-15 r / min, pushing the sludge to move forward, the gap between the fixed ring and the floating ring is 0.5-2 mm, allowing free water to seep out under the action of gravity, the spacing of the spiral plate body 34 gradually decreases along the axial direction, applying axial extrusion force to the sludge, further extruding water, the concentrated sludge enters the dewatering section, the floating ring floats along the axial direction under the driving of the spiral shaft, forming a dynamic filter gap with the fixed ring, continuously removing blockages, avoiding the problem of easy blockage of traditional filter cloth, the filtrate is discharged through the filter gap formed by the floating ring and the fixed ring, and the dewatered mud cake is continuously pushed to the discharge port of the sludge discharging frame plate 5 by the hollow shaft body 33, here the gap between the extrusion back plate 36 and the sludge dewatering machine shell 3 can be adjusted by controlling the extension and retraction of the electric telescopic rod 371, the sludge extrusion gap can be adjusted according to the characteristics of the sludge to adapt to different sludge dewatering requirements; it is worth noting that the structure of the hollow shaft body 33 is optimized and integrated with a gas guiding member and an air guiding member to form an active oxygen gas guiding system, so that the oxygen gas is diffused and uniformly released to the sludge layer through the spiral distribution air jet nozzle 330 along the spiral path, oxidizing and decomposing harmful substances such as hydrogen sulfide, effectively removing the odor and harmful gas generated during the unloading and extrusion of the sludge, and further improving the purification effect of the steel ball ultrasonic cleaning wastewater. Figures 1-19

[0043] ​The input end of the air guide pipe 331 is provided with a rotary joint, which is rotationally connected with the inner wall of the feed connection cylinder 32, and the other end of the rotary joint is fixedly connected with a hose, and the input end of the hose is provided with a gas tank; the air guide pipe 331 penetrates the center of the hollow shaft body 33, and a plurality of groups of uniformly distributed conical nozzles 3310 are uniformly arranged on the outer ring inner wall of the air guide pipe 331, and a triangular strip plate 3311 is arranged between the two groups of uniformly distributed conical nozzles 3310, the triangular strip plate 3311 is fixedly installed outside the air guide pipe 331, and the end section of the triangular strip plate 3311 is in a triangular structure; through the triangular structure of the triangular strip plate 3311, the airflow discharged at the uniformly distributed conical nozzles 3310 can be assisted to guide, so that the airflow can be more quickly diffused outward along the triangular inclined surface of the triangular strip plate 3311; the end of the air guide pipe 331 away from the feed connection cylinder 32 is fixedly connected with a conical end pipe 332, the conical end pipe 332 is connected with the air guide pipe 331 in a penetrating manner, the inner side surface of the conical end pipe 332 is fixedly connected with a triangular rib plate 3321, the triangular rib plate 3321 is arranged in a plurality of groups and arranged in a circular array about the center axis of the conical end pipe 332, the inner side of the triangular rib plate 3321 is fixedly connected with the outer surface of a center nozzle 333, and the inner side of the center nozzle 333 is threadedly connected with the inner wall of the air guide pipe 331; one end of a threaded column 334 is provided with a male thread, a threaded groove matched with the male thread is arranged on the inner wall of one end of the hollow shaft body 33 close to the threaded column 334, and an impeller 335 is rotationally installed at the other end of the threaded column 334 away from the male thread through a bearing, and a stress hole 3340 is arranged on the inner wall of the other end of the threaded column 334 away from the impeller 335;

[0044] In the embodiment, when the active oxygen gas is introduced into the inside of the sludge dewatering machine shell 3, first, the air guide pipe 331 is arranged on the inside of the hollow shaft body 33, and the input end of the air guide pipe 331 is connected with the gas tank through the rotary joint and the hose, part of the gas diffuses into the hollow shaft body 33 through the air guide pipe 331, and then is sprayed out through the spiral distribution gas nozzle 330, and is sprayed into the gap formed by the spiral assembly 313, and part of the gas can diffuse along the wall of the air guide pipe 331 under the action of the air guide piece, so as to avoid the situation that the local gas concentration is too high or too low due to the gathering of the gas; and through the arrangement of the conical end pipe 332 and the center nozzle 333 at one end of the air guide pipe 331 close to the impeller 335, the combination of the two can make the gas form a state that the middle flow rate is fast and the flow rate on both sides is low, when the airflow reaches the area near the impeller 335, the flow rate becomes fast, the impact on the impeller 335 is accelerated, the rotation speed of the impeller 335 is faster, and the triangular rib plate 3321 can provide structural support for the conical end pipe 332 and the center nozzle 333, resist the backflow of the airflow, ensure the overall stability of the conical end pipe 332, prolong the service life, and avoid the situation that the airflow is turbulent;

[0045] And it is worth noting that the threaded column 334 is installed at the end of the hollow shaft body 33 by means of threaded fitting, facilitating quick installation and disassembly and maintenance.

[0046] Embodiment three, refer to the attached Figures 1-19 On the basis of embodiment two, in order to keep the gap between the extrusion back plate 36 and the mud stable:

[0047] The inner wall of the hollow shaft body 33 near the threaded column 334 is annularly provided with an auxiliary air guide hole 3300; the inner wall of the sleeve jointed conical ring body 35 is uniformly provided with a butt joint air guide bend groove 350, the input end of the butt joint air guide bend groove 350 corresponds to the auxiliary air guide hole 3300 one by one, the side of the butt joint air guide bend groove 350 away from the auxiliary air guide hole 3300 is provided with an expansion straight groove 3500, the expansion straight groove 3500 is in communication with the butt joint air guide bend groove 350; the side of the extrusion back plate 36 close to the sleeve jointed conical ring body 35 is provided with 360, the inner surface of 360 is in sliding connection with the outer surface of the sleeve jointed conical ring body 35, the inner side surface of the extrusion back plate 36 is fixedly connected with an extrusion plate 361 through bolts; the inner side of the expansion straight groove 3500 is slidingly connected with a piston rod 3501, the piston rod 3501 is composed of a plug plate and a plug rod, the outer surface of the plug rod is in sliding connection with the inner wall of the sleeve jointed conical ring body 35, the outer surface of the plug rod is slidingly sleeved with a sleeve spring 3502, one end of the sleeve spring 3502 is fixedly connected with the outer surface of the sleeve jointed conical ring body 35, and the other end of the sleeve spring 3502 is fixedly connected with the inner side surface of the extrusion back plate 36;

[0048] In this embodiment, the auxiliary air guide hole 3300 is in butt joint with the butt joint air guide bend groove 350, when part of the airflow is guided and diffused through the sleeve jointed conical ring body 35, enters the butt joint air guide bend groove 350 through the auxiliary air guide hole 3300, at this time the high-speed airflow can enter the expansion straight groove 3500, and the plug plate position of the piston rod 3501 is pushed, at this time the airflow provides a certain degree of resistance to the piston rod 3501, and when the extrusion back plate 36 and the extrusion plate 361 move in and out along the axial direction, the vibration of the sleeve spring 3502 can be weakened when the back pressure of the sludge is changed, and the stability of the extrusion back plate 36 can be maintained.

[0049] Embodiment four, refer to the attached Figures 1-19 On the basis of embodiment three, in order to realize efficient spinning out at the sludge dewatering section:

[0050] A mud-collecting assembly 38 is provided on the inner side of a set of limiting rings 311. The mud-collecting assembly 38 includes a mud-collecting cone ring 381, which is composed of a set of cone rings and multiple sets of connecting pieces and is integrally formed. Ear plates are fixedly installed on the outer ring surface of the cone rings. Ear plate grooves 3120 adapted to the ear plates are opened on the inner surface of the guide rod 312. The mud-collecting cone ring 381 is fixedly connected to the guide rod 312 by bolts. Ear plates are welded to the outer ring surface of the cone rings and fastened to the ear plate grooves 3120 on the inner surface of the guide rod 312 by bolts, realizing detachable installation and facilitating the replacement of worn parts during maintenance. An extrusion cavity is provided between the outer ring surface of the mud-collecting cone ring 381 and the outer surface of the sleeve cone ring body 35. Extrusion holes 3810 are evenly opened on the inner ring surface of the mud-collecting cone ring 381. A reinforcing rib plate 382 is fixed on the outer side of the mud-collecting cone ring 381, and the reinforcing rib plate 382 corresponds one-to-one with the connecting pieces.

[0051] In this embodiment, refer to Figure 5 As shown, a squeezing chamber is provided between the outer ring surface of the mud-gathering cone ring 381 and the outer surface of the sleeve cone ring body 35. When the dewatered sludge reaches the area near the sludge outlet, the sleeve cone ring body 35 rotates synchronously with the drive of the hollow shaft body 33. At this time, the sludge enters the squeezing chamber between the sleeve cone ring body 35 and the inner side of the mud-gathering cone ring 381. The sludge narrows inward as it approaches the discharge point and is evenly and multidirectionally extruded through multiple sets of extrusion holes 3810. Under the squeezing action of the squeezing plate 361, it is discharged through the discharge gap and passes through the sleeve cone ring body 35 and the inner side of the mud-gathering cone ring 381. The sludge-aggregating components 38 work together to improve the quality of the sludge cake, prevent the sludge cake from accumulating loosely, and further improve the separation effect of sewage and sludge. It is worth noting that the conical ring design forms a radially tapering extrusion chamber, the width of which gradually decreases along the sludge flow direction, enhancing the end extrusion effect. The connecting plates act as a radial support skeleton, dispersing the axial pressure transmitted by the hollow shaft 33 and preventing the conical ring from deforming. The reinforcing ribs 382 here not only serve as separators for the multiple sets of extrusion holes 3810, but also provide strength support for the sludge-aggregating conical ring 381.

[0052] The working principle and use process of the present application: in actual use, first, add flocculants in the mixing box 2, start the mixing mechanism, make the sludge particles coagulate into larger flowers, enhance the subsequent dehydration efficiency, the pretreated sludge is pumped into the feeding connecting cylinder 32; then, the driving assembly is started, the hollow shaft body 33 rotates at low speed, pushes the sludge to move to the dehydration section, the gap between the fixed ring and the running ring allows the free water to seep out under the action of gravity, and the filter gap formed by the running ring and the fixed ring is discharged into the water collecting tank 4; in addition, the gas tank inputs the active oxygen gas flow 5-10L / min to the gas guide pipe 331 through the hose and the rotary joint, the gas is diffused to the inside of the sludge dewatering machine shell 3 through the uniform distribution cone type nozzle 3310, the air guide part accelerates the gas to release to the sludge layer through the spiral distribution air jet nozzle 330, oxidizes and decomposes harmful substances such as hydrogen sulfide; in addition, part of the high-speed airflow enters the butt joint gas guide bend 350 through the auxiliary gas guide hole 3300, drives the piston rod 3501, the sleeve spring 3502 is deformed, and the elastic counterforce of the sleeve spring 3502 and the extrusion back plate 36 are dynamically balanced, the sludge discharge gap is kept stable, and finally the sludge after dehydration forms a mud cake and is discharged through the discharge port of the sludge discharge frame plate 5, through the synergistic effect of mechanical extrusion, pneumatic adjustment and gas treatment, the steel ball ultrasonic cleaning wastewater sludge is dehydrated efficiently, stably and low odor, and the environmental protection requirements of industrial wastewater treatment are met.

[0053] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for ultrasonic cleaning wastewater from steel balls, comprising a mounting base (1), a mixing tank (2), and a sludge dewatering machine housing (3), wherein the sludge dewatering machine housing (3) and the mixing tank (2) are both fixedly mounted on the upper end of the mounting base (1), and a water collection tank (4) is connected through the lower end of the sludge dewatering machine housing (3), characterized in that: The sludge dewatering machine housing (3) is fixedly connected to a feed connection cylinder (32) on the side near the mixing box (2). The feed connection cylinder (32) is fixedly installed on the outer surface of one side of the sludge dewatering machine housing (3) by bolts. A wastewater sludge dewatering mechanism is provided on the inner side of the sludge dewatering machine housing (3). The wastewater sludge dewatering mechanism includes a limiting component, a screw shaft assembly, and a sludge extrusion assembly. The limiting component includes a limiting partition (31), a limiting ring (311), a guide rod (312), and a stacked screw assembly (313). The screw shaft assembly includes a hollow shaft body (33) and a screw plate body (34). The screw plate body (34) is spirally distributed on the outside of the hollow shaft body (33). The surface of the hollow shaft (33) is in active contact with the inner side of the stacked screw assembly (313). The inner side of the hollow shaft (33) is provided with air guide and air duct. The sludge extrusion assembly includes a sleeved conical ring (35), an extrusion back plate (36), and a limiting rotating ring (37). The inner side of the limiting rotating ring (37) is fixedly connected with an electric telescopic rod (371). The output end of the electric telescopic rod (371) is fixedly connected to one side of the extrusion back plate (36). The hollow shaft (33) is provided with a drive assembly at one end away from the feed connection cylinder (32). The drive assembly includes a sludge discharge frame plate (5), a drive unit (51), and a bushing (52). The hollow shaft (33) is fixedly connected to the output shaft of the drive unit (51) through the bushing (52). The air guide component includes an air guide pipe (331), a conical end pipe (332), and a central nozzle (333). The central nozzle (333) is located on the inner side of the center of the conical end pipe (332). One end of the air guide pipe (331) extends to the outside of the feed connection cylinder (32). The air guide pipe (331) penetrates the center of the hollow shaft (33). Multiple sets of evenly distributed conical nozzles (3310) are evenly opened on the inner wall of the outer ring of the air guide pipe (331). A triangular strip plate (3311) is provided between two sets of evenly distributed conical nozzles (3310). The triangular strip plate (3311) is fixedly installed on the outside of the air guide pipe (331). The air-exhaust component includes a threaded post (334) and an impeller (335). One end of the threaded post (334) has a protruding thread on its outer surface. The hollow shaft (33) has a threaded groove on its inner wall near the threaded post (334) that matches the protruding thread. The impeller (335) is rotatably mounted on the end of the threaded post (334) away from the protruding thread via a bearing. The inner wall of the end of the threaded post (334) away from the impeller (335) has a force-bearing hole (3340).

2. The wastewater treatment equipment for ultrasonic cleaning of steel balls according to claim 1, characterized in that: The end of the air guide pipe (331) away from the feed connection cylinder (32) is fixedly connected to the conical end pipe (332). The conical end pipe (332) and the air guide pipe (331) are connected in a through manner. A triangular rib plate (3321) is fixedly connected to the inner surface of the conical end pipe (332). The triangular rib plate (3321) is provided in multiple sets and arranged in a circular array about the central axis of the conical end pipe (332). The inner side of the triangular rib plate (3321) is fixedly connected to the outer surface of the central nozzle (333), and the outer surface of one inner end of the central nozzle (333) is threadedly connected to the inner wall of the air guide pipe (331).

3. The wastewater treatment equipment for ultrasonic cleaning of steel balls according to claim 1, characterized in that: The hollow shaft (33) has uniformly provided mounting holes on the inner wall of its outer ring. A spiral distribution nozzle (330) is fixedly installed on the inner side of the mounting hole. The spiral distribution nozzle (330) is distributed along the spiral path of the spiral plate (34). An auxiliary air guide hole (3300) is provided on the inner wall of the hollow shaft (33) near the threaded column (334).

4. The wastewater treatment equipment for ultrasonic cleaning of steel balls according to claim 3, characterized in that: The sleeve cone ring (35) is fixedly installed on the outer surface of the hollow shaft (33) away from the feed connecting cylinder (32). The inner wall of the sleeve cone ring (35) is uniformly provided with connecting air guide bends (350). The input end of the connecting air guide bend (350) corresponds one-to-one with the auxiliary air guide hole (3300). The side of the connecting air guide bend (350) away from the auxiliary air guide hole (3300) is provided with an expansion straight groove (3500). The expansion straight groove (3500) is connected to the connecting air guide bend (350).

5. The wastewater treatment equipment for ultrasonic cleaning of steel balls according to claim 4, characterized in that: The inner side of the extrusion back plate (36) is in contact with the outer surface of the sludge dewatering machine housing (3), and a gap is formed between the extrusion back plate (36) and the outer side of the sludge dewatering machine housing (3). The inner ring surface of the extrusion back plate (36) is movably connected to the outer surface of the hollow shaft (33). The inner surface of the extrusion back plate (36) is fixedly connected to the extrusion plate (361) by bolts.

6. The wastewater treatment equipment for ultrasonic cleaning of steel balls according to claim 1, characterized in that: The limiting partition (31) is fixedly installed on the inner side of the sludge dewatering machine housing (3). Two sets of limiting rings (311) are provided. The two sets of limiting rings (311) are respectively fixedly installed on the inner side wall of the sludge dewatering machine housing (3). The two ends of the guide rod (312) pass through the inner wall of the limiting ring (311). The stacked screw assembly (313) includes multiple moving rings and fixed rings. The fixed rings are fixedly installed on the guide rod (312). A set of moving rings is provided between the two sets of fixed rings. The inner ring surface of the moving rings is in movable contact with the outer surface of the spiral plate body (34).

7. The wastewater treatment equipment for ultrasonic cleaning of steel balls according to claim 6, characterized in that: A mud-gathering assembly (38) is provided on the inner side of a set of limiting rings (311). The mud-gathering assembly (38) includes a mud-gathering cone ring (381). The mud-gathering cone ring (381) is composed of a set of cone rings and multiple sets of connecting pieces and is integrally formed. An ear plate is fixedly installed on the outer ring surface of the cone ring. An ear plate groove (3120) adapted to the ear plate is opened on the inner surface of the guide rod (312). The mud-gathering cone ring (381) is fixedly connected to the guide rod (312) by bolts. A compression cavity is provided between the outer ring surface of the mud-gathering cone ring (381) and the outer surface of the sleeve cone ring body (35).

8. The wastewater treatment equipment for ultrasonic cleaning of steel balls according to claim 7, characterized in that: The inner ring surface of the mud-gathering cone ring (381) is uniformly provided with extrusion holes (3810), and the outer side of the mud-gathering cone ring (381) is fixed with a reinforcing rib plate (382), and the reinforcing rib plate (382) corresponds one-to-one with the connecting piece.

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