Municipal sludge and sewage treatment device

Abstract

The municipal sludge and sewage treatment device comprises a shell and a uniform filter pressing mechanism, a sludge discharging opening is formed in the rear side of the upper end of the shell, sliding grooves are formed in the middles of the front inner wall and the rear inner wall of the sludge discharging opening, a drainage groove is formed in the middle of the left side wall of the shell, and the uniform filter pressing mechanism comprises a lead screw, a sludge discharging head and a belt pulley. The screw rods are rotationally connected to the interior of the mud discharging opening, the thread directions of the two screw rods are opposite, the mud discharging heads are slidably connected to the interior of the sliding groove through the limiting protrusions, the outer surfaces of the screw rods are in threaded connection with the centers of the interiors of the mud discharging heads, the belt wheels are arranged at the right ends of the screw rods, and the two belt wheels are in transmission connection through belts. The municipal sludge and sewage treatment device is provided with the uniform filter pressing mechanism, so that sludge can be uniformly conveyed to the filter pressing belt, the sludge can be quickly distributed and uniformly paved, the sludge accumulation condition is avoided, the dehydration work can be quickly performed, and the municipal sludge and sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal sludge and sewage treatment, in particular to a municipal sludge and sewage treatment device. Background Art

[0002] Urban sewage treatment is generally divided into three levels: primary treatment, which is the application of physical treatment methods to remove insoluble pollutants and parasite eggs in sewage; secondary treatment, which is the application of biological treatment methods to oxidize and degrade various complex organic matter in sewage into simple substances; tertiary treatment, which is the application of chemical precipitation, biochemical, physical and chemical methods, etc., to remove phosphorus, nitrogen, difficult-to-degrade organic matter, inorganic salts, etc. in sewage. After the completion of the tertiary treatment, the remaining sludge needs to be dehydrated, which requires the use of municipal sludge sewage treatment equipment. When the existing municipal sludge sewage treatment equipment is working, the concentrated sludge is fully mixed with a certain concentration of flocculant in an external static and dynamic mixer, and the tiny solid particles in the sludge are aggregated into larger volumes. The flocculated sludge is transported to the filter belt for concentrated gravity dehydration. Under the action of gravity, the free water is separated to form stagnant sludge, which is then clamped between the upper and lower filter belts. The sludge is gradually squeezed under the action of the squeezing force and shear force from small to large in the wedge-shaped pre-pressing area, the low-pressure area and the high-pressure area to achieve the maximum separation of mud and water, and finally form a filter cake for discharge. The traditional municipal sludge and sewage treatment device directly discharges the mixed sludge on the filter belt. The sludge on the filter belt is unevenly distributed, and the gravity dehydration effect is poor. When the filter press dehydration work is performed, the thicker sludge cannot discharge the internal water in time, and the filter press dehydration effect is poor. For this reason, we propose a municipal sludge and sewage treatment device. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a municipal sludge and sewage treatment device, which is equipped with a uniform filter pressing mechanism, can evenly transport the sludge to the filter pressing belt, and can also quickly divert and spread the sludge, thereby avoiding the occurrence of sludge accumulation, and can quickly perform dehydration work, thereby improving the treatment efficiency of municipal sludge and sewage, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a municipal sludge and sewage treatment device, comprising a shell and a uniform filter pressing mechanism;

[0005] Shell: A lower mud opening is provided at the rear side of the upper end, and a slide groove is provided in the middle of the front and rear inner walls of the lower mud opening, and a drainage groove is provided in the middle of the left side wall of the shell;

[0006] Uniform pressure filtration mechanism: It includes a lead screw, a lower mud head, and a pulley. The lead screws are rotatably connected to the inside of the lower mud outlet. The thread directions of the two lead screws are opposite. The lower mud heads are slidably connected to the inside of the chute through limit protrusions. The outer surfaces of the lead screws are threadedly connected to the inner centers of the lower mud heads. The pulleys are all arranged at the right ends of the lead screws. The two pulleys are connected by a belt drive. It can discharge municipal sludge evenly. With a uniform pressure filtration mechanism, it can evenly transport the sludge to the pressure filtration belt, quickly divert and spread the sludge, avoid the occurrence of sludge accumulation, and can quickly carry out dehydration work, improving the treatment efficiency of municipal sludge and sewage.

[0007] Furthermore, the uniform pressure filtration mechanism further includes a uniform paving assembly. The uniform paving assembly includes fixed diversion plates, mounting plates, movable diversion plates, gears, and rack plates. The fixed diversion plates are evenly arranged in the middle of the top wall of the housing. The mounting plates are all arranged in the middle of the inside of the housing. The movable diversion plates are rotatably connected to the middle of the inside of the mounting plates through mounting holes. The gears are all arranged at the upper ends of the outer surfaces of the movable diversion plates. The rack plates are all slidably connected to the middle of the inside of the housing. Horizontally adjacent gears are meshed with the rack plates, providing a basis for paving the municipal sludge.

[0008] Furthermore, the uniform paving assembly further includes springs and connecting wheels. The connecting wheels are all arranged at the right ends of the rack plates. Springs are provided between the left sides of the connecting wheels and the right sides of the housing. The springs are sleeved on the right outer surfaces of the rack plates, which can quickly pave the municipal sludge.

[0009] Furthermore, the uniform pressure filtration mechanism further includes a transmission assembly. The transmission assembly further includes a rotating shaft, a cam, a worm gear, and a worm. The rotating shafts are rotatably connected to the upper right ends of the housing. The cams are all arranged in the middle of the outer surfaces of the rotating shafts. The outer edges of horizontally adjacent cams are fitted and installed with the outer edges of the connecting wheels. The protruding directions of the two cams are opposite. The worm gear is arranged at the rear end of the rotating shaft. The worms are all arranged at the right ends of the front pulleys. The worms are meshed with the worm gears, providing a transmission effect for the discharge and paving of the municipal sludge.

[0010] Furthermore, the uniform pressure filtration mechanism further includes a first motor. The first motor is arranged at the rear right end of the housing through a bracket. The input end of the first motor is electrically connected to the output end of the single-chip microcomputer. The left end of the output shaft of the first motor is fixedly connected to the right end of the worm, providing a stable drive for the discharge and paving of the municipal sludge.

[0011] Furthermore, the uniform filter pressing mechanism also includes a filter pressing assembly, which includes an upper filter pressing conveyor belt, a lower filter pressing conveyor belt, a motor 2 and a motor 3. The inner middle of the shell is rotatably connected to a uniformly distributed roller 1, and the inner lower end of the shell is rotatably connected to a uniformly distributed roller 2. The five rollers 1 are all connected through the upper filter pressing conveyor belt transmission, and the four rollers 2 are all connected through the lower filter pressing conveyor belt transmission. The upper filter pressing conveyor belt and the lower filter pressing conveyor belt are installed in coordination. Motor 2 is arranged at the right front end of the shell, and motor 3 is arranged at the right rear end of the shell. The input ends of motor 2 and motor 3 are both electrically connected to the output end of the single-chip microcomputer, the left end of the output shaft of motor 2 is fixedly connected to the right end of roller 2 at the lower end of the rear side, and the left end of the output shaft of motor 3 is fixedly connected to the right end of roller 1 at the upper end of the front side, so that municipal sludge can be quickly filter pressed and dehydrated.

[0012] Furthermore, it also includes a single-chip microcomputer, which is arranged at the front right side of the shell, and the input end of the single-chip microcomputer is electrically connected to an external power supply to provide a control effect for the treatment of municipal sludge.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the municipal sludge sewage treatment device has the following advantages:

[0014] 1. The single chip microcomputer controls the operation of motor 1. The output shaft of motor 1 drives the worm to rotate. As the worm rotates, the two pulleys rotate synchronously. The thread directions of the two screws are opposite, so the two lower mud heads will move relative to each other along the direction of the screw as the pulleys rotate. At the same time, the mixed sludge is evenly arranged on the top of the upper filter press conveyor belt through the lower mud heads, so that the sludge can be evenly transported to the filter press belt.

[0015] 2. At this time, the single-chip microcomputer controls the operation of Motor 2 and Motor 3. Motor 2 and Motor 3 drive the lower pressure filtration conveyor belt and the upper pressure filtration conveyor belt to rotate synchronously. As the upper pressure filtration conveyor belt rotates, the upper pressure filtration conveyor belt drives the sludge to move forward. When the sludge passes through the fixed diversion piece, it is diverted. At this time, since the worm is meshed with the worm wheel, as the worm rotates, the worm wheel also rotates, driving the rotating shaft to rotate synchronously. As the rotating shaft rotates, the cam also rotates. When the protrusion of the rear cam contacts the outer edge of the connecting wheel, the rear cam presses the rear connecting wheel to move leftward. The rear spring is compressed under force, and the rear rack plate also moves leftward synchronously, driving the rear gear to rotate. The rear movable diversion piece rotates leftward synchronously, spreading out the passing sludge. As the rotating shaft continues to rotate, the protrusion of the rear cam leaves the connecting wheel, and the rear rack plate and the movable diversion piece return to their original positions. When the protrusion of the front cam contacts the outer edge of the connecting wheel, the front cam presses the front connecting wheel to move leftward. The front spring is compressed under force, and the front rack plate also moves leftward synchronously, driving the front gear to rotate. The front movable diversion piece rotates leftward synchronously, spreading out the passing sludge again. This process repeats. Then the flattened sludge is carried forward by the upper pressure filtration conveyor belt until it is squeezed by the upper pressure filtration conveyor belt and the lower pressure filtration conveyor belt. At this time, the water in the sludge is squeezed out, and the remaining filter cake is then discharged outside the machine body, quickly diverting and spreading the sludge evenly, avoiding the occurrence of sludge accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic cross-sectional structural diagram of the uniform pressure filtration mechanism of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the uniform pressure filtration mechanism of the present utility model.

[0019] In the figure: 1 housing, 2 lower mud inlet, 3 drainage trough, 4 uniform pressure filtration mechanism, 41 lead screw, 42 lower mud head, 43 pulley, 44 uniform paving assembly, 441 fixed diversion piece, 442 mounting plate, 443 movable diversion piece, 444 gear, 445 rack plate, 446 spring, 447 connecting wheel, 45 transmission assembly, 451 rotating shaft, 452 cam, 453 worm wheel, 454 worm, 46 Motor 1, 47 pressure filtration assembly, 471 upper pressure filtration conveyor belt, 472 lower pressure filtration conveyor belt, 473 Motor 2, 474 Motor 3, 5 single-chip microcomputer, 6 chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3 , this embodiment provides a technical solution: a municipal sludge sewage treatment device, including a housing 1 and a uniform pressure filtration mechanism 4;

[0022] Housing 1: A lower mud outlet 2 is provided at the rear side of its upper end to facilitate the lower mud operation. Chutes 6 are provided in the middle of the front and rear inner walls of the lower mud outlet 2. A drainage groove 3 is provided in the middle of the left side wall of the housing 1. It also includes a single-chip microcomputer 5, which is arranged at the front end of the right side of the housing 1. The input end of the single-chip microcomputer 5 is electrically connected to an external power supply to provide a control effect for the treatment of municipal sludge;

[0023] Uniform pressure filtration mechanism 4: It includes a lead screw 41, a lower mud head 42 and a pulley 43. The lead screws 41 are all rotatably connected to the inside of the lower mud outlet 2. The thread directions of the two lead screws 41 are opposite. The lower mud heads 42 are all slidably connected to the inside of the chute 6 through limit protrusions. The outer surfaces of the lead screws 41 are threadedly connected to the inner centers of the lower mud heads 42. The pulleys 43 are all arranged at the right ends of the lead screws 41. The two pulleys 43 are all connected by a belt drive. The diameters of the two pulleys 43 are different, which can achieve the belt drive effect and can evenly discharge municipal sludge. The uniform pressure filtration mechanism 4 further includes a uniform paving assembly 44. The uniform paving assembly 44 includes a fixed diversion plate 441, a mounting plate 442, a movable diversion plate 443, a gear 444 and a rack plate 445. The fixed diversion plates 441 are evenly arranged in the middle of the top wall of the housing 1. The mounting plates 442 are all arranged in the middle of the inside of the housing 1. The movable diversion plates 443 are all rotatably connected to the middle of the inside of the mounting plates 442 through mounting holes. The gears 444 are all arranged at the upper ends of the outer surfaces of the movable diversion plates 443. The rack plates 445 are all slidably connected to the middle of the inside of the housing 1. Horizontally adjacent gears 444 are all meshed with the rack plates 445, providing a basis for paving the municipal sludge. The uniform paving assembly 44 further includes springs 446 and connecting wheels 447. The connecting wheels 447 are all arranged at the right ends of the rack plates 445. Springs 446 are provided between the left sides of the connecting wheels 447 and the right sides of the housing 1. The springs 446 are all sleeved on the right outer surfaces of the rack plates 445, which can quickly pave the municipal sludge. The uniform pressure filtration mechanism 4 further includes a transmission assembly 45. The transmission assembly 45 further includes a rotating shaft 451, a cam 452, a worm gear 453 and a worm 454. The rotating shafts 451 are all rotatably connected to the upper right ends of the housing 1. The cams 452 are all arranged in the middle of the outer surfaces of the rotating shafts 451. The outer edges of horizontally adjacent cams 452 are fitted and installed with the outer edges of the connecting wheels 447. The protruding directions of the two cams 452 are opposite. The worm gear 453 is arranged at the rear end of the rotating shaft 451. The worms 454 are all arranged at the right ends of the front pulley 43. The worms 454 are meshed with the worm gear 453, providing a transmission effect for the discharge and paving of the municipal sludge. The uniform pressure filtration mechanism 4 further includes a motor 1 46. The motor 1 46 is arranged at the rear right end of the housing 1 through a bracket. The input end of the motor 1 46 is electrically connected to the output end of the single-chip microcomputer 5. The left end of the output shaft of the motor 1 46 is fixedly connected to the right end of the worm 454, providing a stable drive for the discharge and paving of the municipal sludge. The uniform pressure filtration mechanism 4 further includes a pressure filtration assembly 47. The pressure filtration assembly 47 includes an upper pressure filtration conveyor belt 471, a lower pressure filtration conveyor belt 472, a motor 2 473 and a motor 3 474. A uniformly distributed first roller is rotatably connected to the middle of the inside of the upper housing 1. A uniformly distributed second roller is rotatably connected to the lower end of the inside of the housing 1. The five first rollers are all connected by the upper pressure filtration conveyor belt 471. The four second rollers are all connected by the lower pressure filtration conveyor belt 472. The upper pressure filtration conveyor belt 471 and the lower pressure filtration conveyor belt 472 are fitted and installed.The second motor 473 is arranged at the front end of the right side of the housing 1, and the third motor 474 is arranged at the rear end of the right side of the housing 1. The input ends of the second motor 473 and the third motor 474 are electrically connected to the output end of the single-chip microcomputer 5. The left end of the output shaft of the second motor 473 is fixedly connected to the right end of the second roller at the lower end of the rear side, and the left end of the output shaft of the third motor 474 is fixedly connected to the right end of the first roller at the upper end of the front side, which can quickly carry out the pressure filtration and dehydration work on municipal sludge. There is a uniform pressure filtration mechanism, which can evenly convey the sludge to the pressure filtration belt, and can also quickly divide and spread the sludge evenly, avoiding the occurrence of sludge accumulation, and can quickly carry out the dehydration work, improving the treatment efficiency of municipal sludge and sewage.

[0024] The working principle of a municipal sludge sewage treatment device provided by the utility model is as follows: When treating municipal sludge sewage, the single-chip microcomputer 5 controls the operation of the first motor 46. The output shaft of the first motor 46 drives the worm 454 to rotate. With the rotation of the worm 454, the diameters of the two belt pulleys 43 are different, and the belt drive effect can be achieved. The two belt pulleys 43 rotate synchronously. Because the thread directions of the two lead screws 41 are opposite, the two sludge discharge heads 42 will move relative to each other along the direction of the lead screws 41 with the rotation of the belt pulleys 43. At the same time, the mixed sludge is evenly discharged above the upper pressure filter conveyor belt 471 through the sludge discharge heads 42. At this time, the single-chip microcomputer 5 controls the operation of the second motor 473 and the third motor 474. The second motor 473 and the third motor 474 drive the lower pressure filter conveyor belt 472 and the upper pressure filter conveyor belt 471 to rotate synchronously. With the rotation of the upper pressure filter conveyor belt 471, the upper pressure filter conveyor belt 471 drives the sludge to move forward. When the sludge passes through the fixed flow dividing piece 441, it is divided. At this time, because the worm 454 is meshed with the worm wheel 453, with the rotation of the worm 454, the worm wheel 453 also rotates, driving the rotating shaft 451 to rotate synchronously. With the rotation of the rotating shaft 451, the cam 452 also rotates. When the protrusion of the rear cam 452 contacts the outer edge of the connecting wheel 447, the rear cam 452 presses the rear connecting wheel 447 to move leftward. The rear spring 446 is compressed under force, and the rear rack plate 445 also moves leftward synchronously, driving the rear gear 444 to rotate. The rear movable flow dividing piece 443 rotates leftward synchronously, spreading the passing sludge. With the continuous rotation of the rotating shaft 451, the protrusion of the rear cam 452 leaves the connecting wheel 447, and the rear rack plate 445 and the movable flow dividing piece 443 return to their original positions. When the protrusion of the front cam 452 contacts the outer edge of the connecting wheel 447, the front cam 452 presses the front connecting wheel 447 to move leftward. The front spring 446 is compressed under force, and the front rack plate 445 also moves leftward synchronously, driving the front gear 444 to rotate. The front movable flow dividing piece 443 rotates leftward synchronously, spreading the passing sludge again. This process repeats. Then the flattened sludge is carried by the upper pressure filter conveyor belt 471 and continues to move until it is squeezed by the upper pressure filter conveyor belt 471 and the lower pressure filter conveyor belt 472. At this time, the water in the sludge is squeezed out, and the remaining filter cake is then discharged outside the machine body, completing the treatment of municipal sludge sewage. It is equipped with a uniform pressure filtration mechanism, which can evenly transport the sludge to the pressure filter belt, and can also quickly divide and spread the sludge evenly, avoiding the occurrence of sludge accumulation, and can quickly carry out the dehydration work, improving the treatment efficiency of municipal sludge sewage.

[0025] It should be noted that the single-chip microcomputer 5 disclosed in the above embodiments is an S7-200 single-chip microcomputer, the first motor 46 is a 130ZFMA1-0003CBNM motor, and the second motor 473 and the third motor 474 are both 1PH8107-1 UM22-0LC1-Z X04 motors. The single-chip microcomputer 5 controls the operation of the first motor 46, the second motor 473, and the third motor 474 using common methods in the prior art.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A municipal sludge sewage treatment device, characterized in that: It includes a housing (1) and a uniform pressure filtration mechanism (4); Housing (1): A lower mud outlet (2) is provided at the rear side of its upper end. Chutes (6) are provided in the middle of the front and rear inner walls of the lower mud outlet (2). A drainage groove (3) is provided in the middle of the left side wall of the housing (1); Uniform pressure filtration mechanism (4): It includes a lead screw (41), a lower mud head (42) and a pulley (43). The lead screws (41) are rotatably connected to the inside of the lower mud outlet (2). The thread directions of the two lead screws (41) are opposite. The lower mud heads (42) are slidably connected to the inside of the chutes (6) through limit protrusions. The outer surfaces of the lead screws (41) are threadedly connected to the inner centers of the lower mud heads (42). The pulleys (43) are all arranged at the right ends of the lead screws (41). The two pulleys (43) are connected by a belt in a transmission manner.

2. The municipal sludge sewage treatment device according to claim 1, characterized in that: It further includes a single-chip microcomputer (5). The single-chip microcomputer (5) is arranged at the front end of the right side of the housing (1). The input end of the single-chip microcomputer (5) is electrically connected to an external power supply.

3. The municipal sludge sewage treatment device according to claim 2, characterized in that: The uniform pressure filtration mechanism (4) further includes a uniform paving assembly (44). The uniform paving assembly (44) includes a fixed shunt plate (441), a mounting plate (442), a movable shunt plate (443), a gear (444) and a rack plate (445). The fixed shunt plates (441) are uniformly arranged in the middle of the top wall of the housing (1). The mounting plates (442) are all arranged in the middle of the inside of the housing (1). The movable shunt plates (443) are rotatably connected to the middle of the inside of the mounting plates (442) through mounting holes. The gears (444) are all arranged at the upper ends of the outer surfaces of the movable shunt plates (443). The rack plates (445) are all slidably connected to the middle of the inside of the housing (1). Horizontally adjacent gears (444) are meshed with the rack plates (445).

4. A municipal sludge sewage treatment device according to claim 3, characterized in that: The uniform paving assembly (44) further includes a spring (446) and a connecting wheel (447). The connecting wheels (447) are all arranged at the right ends of the rack plates (445). Springs (446) are provided between the left sides of the connecting wheels (447) and the right side of the housing (1). The springs (446) are all sleeved on the right outer surfaces of the rack plates (445).

5. A municipal sludge sewage treatment device according to claim 4, characterized in that: The uniform pressure filtration mechanism (4) further includes a transmission assembly (45). The transmission assembly (45) further includes a rotating shaft (451), a cam (452), a worm gear (453) and a worm (454). The rotating shafts (451) are rotatably connected to the upper ends of the right sides of the housing (1). The cams (452) are all arranged in the middle of the outer surfaces of the rotating shafts (451). The outer edges of horizontally adjacent cams (452) are fitted and installed with the outer edges of the connecting wheels (447). The protruding directions of the two cams (452) are opposite. The worm gear (453) is arranged at the rear end of the rotating shaft (451). The worms (454) are all arranged at the right ends of the front pulleys (43). The worms (454) are meshed with the worm gears (453).

6. A municipal sludge sewage treatment device according to claim 5, characterized in that: The uniform filter pressing mechanism (4) further comprises a motor 1 (46), which is arranged at the right rear end of the housing (1) via a bracket, the input end of the motor 1 (46) being electrically connected to the output end of the single-chip computer (5), and the left end of the output shaft of the motor 1 (46) being fixedly connected to the right end of the worm (454).

7. A municipal sludge sewage treatment device according to claim 6, characterized in that: The uniform filter pressing mechanism (4) further comprises a filter pressing assembly (47), wherein the filter pressing assembly (47) comprises an upper filter pressing conveyor belt (471), a lower filter pressing conveyor belt (472), a second motor (473) and a third motor (474); a first roller evenly distributed in rotation is connected to the middle of the housing (1); a second roller evenly distributed in rotation is connected to the lower end of the housing (1); the five first rollers are connected to each other through the upper filter pressing conveyor belt (471); the four second rollers are connected to each other through the lower filter pressing conveyor belt (472); The upper filter press conveyor belt (471) and the lower filter press conveyor belt (472) are installed in coordination, the second motor (473) is arranged at the right front end of the housing (1), and the third motor (474) is arranged at the right rear end of the housing (1). The input ends of the second motor (473) and the third motor (474) are both electrically connected to the output end of the single chip computer (5). The left end of the output shaft of the second motor (473) is fixedly connected to the right end of the second roller at the lower end of the rear side, and the left end of the output shaft of the third motor (474) is fixedly connected to the right end of the first roller at the upper end of the front side.

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