A sludge concentration treatment device in sewage treatment

Abstract

The present invention discloses a mud concentration treatment device in sewage treatment, which belongs to the technical field of mud concentration treatment. The mud concentration treatment device in sewage treatment comprises a sewage treatment box, and slopes are provided on both sides of the bottom surface of the sewage treatment box. The slopes divide the two sides of the sewage treatment box into a gravity concentration area and an extrusion area, and a first scraper is installed between the gravity concentration area and the extrusion area of ​​the sewage treatment box. An extrusion transport mechanism is provided on one side of the first scraper, and the extrusion transport mechanism is located in the extrusion area of ​​the sewage treatment box, which is used to elastically hammer and extrude the mud and reduce the water removal time of the mud. The present invention can significantly improve the dehydration efficiency, improve the solid-liquid separation effect, reduce blockage, and extend the life of the filter belt by adopting a rapid dehydration mechanism and an extrusion transport mechanism. At the same time, it can also reduce energy consumption and operating costs, and enhance the adaptability and processing capacity of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of mud concentration treatment, and in particular relates to a mud concentration treatment device in sewage treatment. Background Art

[0002] With the acceleration of urbanization, the construction of sewage treatment plants is increasing, and the treatment of sludge has become an important issue. The sludge generated by sewage treatment plants contains a large amount of organic matter, pathogens, heavy metals and harmful chemicals. If it is directly landfilled or discharged at will, it will pollute the soil, groundwater and air. Therefore, it is necessary to use a concentration device to remove moisture from the sludge, greatly reduce the sludge volume, and reduce the risk of secondary pollution in subsequent transportation and disposal. The concentrated and dehydrated sludge can be converted into biogas (renewable energy) through anaerobic digestion, or made into organic fertilizer for soil improvement, promoting resource recycling, reducing the accumulation of sludge in the environment and pollution of the land, and reducing the negative impact on the natural environment.

[0003] When treating sludge in sewage, a belt thickener is often used to rely on the gravity and friction of the belt filter belt and the sludge to remove moisture from the sludge through screening and pressing processes, thereby achieving sludge concentration. However, in daily use, for sludge with a high moisture content or high viscosity, gravity dehydration of the belt thickener is usually limited and cannot achieve the ideal dehydration level, which means that additional pressing or other treatment processes may be required to further reduce the moisture content of the sludge. If the sludge particles are large or contain more fibrous matter, they may accumulate on the filter belt and cause clogging of the filter belt. In addition, the pressing process relies on conventional pressure and squeezing of the filter belt, which will lead to incomplete water removal, especially for sludge with high moisture content or high viscosity, and the ideal dehydration effect cannot be achieved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a sludge concentration treatment device in sewage treatment.

[0005] The technical solution adopted to solve the above technical problems is: a mud concentration treatment device in sewage treatment, comprising a sewage treatment box, wherein slopes are provided on both sides of the bottom surface of the sewage treatment box, and a plurality of slides are provided through the outer walls of both sides of the sewage treatment box, wherein the slopes divide the two sides of the sewage treatment box into a gravity concentration area and an extrusion area, and a first scraper is installed between the gravity concentration area and the extrusion area of ​​the sewage treatment box, an extrusion transport mechanism is provided on one side of the first scraper, and the extrusion transport mechanism is located in the extrusion area of ​​the sewage treatment box, and is used for elastically hammering and extruding the mud and reducing the water removal time of the mud;

[0006] The extrusion transport mechanism includes a first synchronous belt assembly arranged in a triangular structure, a plurality of second connecting plates are respectively arranged on both sides of the first synchronous belt assembly, four second connecting plates located on one side of the first synchronous belt assembly are rotatably connected head to tail alternately, and the four second connecting plates are arranged in a diamond structure, the four second connecting plates are rotatably connected at the connection between two of each other, and the first connecting plate is rotatably connected at the connection between one of the fork-shaped seats and the second connecting plate, the other end of the first connecting plate is rotatably connected to the eccentric part of the synchronous wheel in the first synchronous belt assembly, the U-shaped seat is fixedly connected to the U-shaped seat at one end away from the second connecting plate, the top surface of the U-shaped seat is fixedly connected to the first spring, a quick dehydration mechanism is arranged on one side of the first spring, and the quick dehydration mechanism is located in the gravity concentration area of ​​the sewage treatment box, and is used for shaking gravity dehydration of the concentrated slurry in the sewage and reducing the adhesion of the sludge to the filter belt;

[0007] The quick dehydration mechanism includes three second rollers arranged in a triangular structure, and two of the three second rollers are hollow in structure, and the other second roller is solid in structure, and the other second roller with a solid structure is rotatably connected to the inner wall of the sewage treatment box, and the two second rollers with hollow structures are fixedly connected with cams, and the three second rollers are transmitted through a second filter belt. At the same time, a number of baffles are arranged at the bottom of the second filter belt, and both ends of the baffles are fixedly connected to the inner wall of the sewage treatment box, and the two second rollers with hollow structures are rotatably connected with second sliders at both ends, and the top and bottom of the second slider are fixedly connected with second springs for driving the cam to shake elastically to reduce the initial gravity dehydration time of the sludge in the sewage.

[0008] The above technical solution can help loosen the sludge from the surface of the filter belt, reduce the adhesion of the sludge to the filter belt, and thus extend the service life of the filter belt.

[0009] Furthermore, the fork-shaped seat is slidably connected to the outer wall of the sewage treatment box body at one end away from the second connecting plate, and the U-shaped seat is fixedly connected to a first slider at one end away from the second connecting plate. The first slider is located in the slide groove of the sewage treatment box body, and the first slider is slidably connected to the sewage treatment box body. The top and bottom of the two first sliders are respectively fixedly connected to a first spring, and the other end of the first spring is fixedly connected to the sewage treatment box body. The synchronous wheels on both sides of the first synchronous belt assembly are fixedly connected to the outer wall of the sewage treatment box body through a rotatably connected L-shaped fixed plate, and the other synchronous wheel in the first synchronous belt assembly is rotatably connected to the outer wall of the sewage treatment box body. A number of connecting plates are fixedly connected between a number of the first sliders on both sides of the top of the sewage treatment box body, and the connecting plates are slidably connected to the inside of the sewage treatment box body. A number of first rollers are connected between the several connecting plates located at the top of the sewage treatment box body through the first filter belt transmission.

[0010] Through the above technical solution, the water in the mud is more easily discharged from the filter belt through vibration, which accelerates the water penetration and discharge, so that the initial gravity dewatering stage can be completed more efficiently and reduce the amount of additional dewatering work required in subsequent steps.

[0011] Furthermore, the first slider located on one side of the sewage treatment box is fixedly connected to a first L-shaped connecting piece, and a first bevel gear is rotatably connected to one side of the first L-shaped connecting piece. The connecting shaft of the first bevel gear is rotatably connected to the first L-shaped connecting piece, the first slider and the connecting plate, and the through end of the connecting shaft of the first bevel gear is fixedly connected to the first roller shaft located at one end of the connecting plate. The first bevel gear is transmission-connected to the second bevel gear on one side, and the second bevel gear is rotatably connected to the first L-shaped connecting piece. The second bevel gear located at the top and bottom of one side of the sewage treatment box is slidably connected to a first limit rod, the first limit rod laterally limits the second bevel gear, and the first limit rod is in a non-contact state with the first L-shaped connecting piece, and the bottom ends of the first limit rods on both sides are fixedly connected to a second synchronous belt assembly, and the first limit rod is fixedly connected to the synchronous wheel in the second synchronous belt assembly.

[0012] With the above technical solution, moisture accumulation on the filter belt will increase the burden on the belt concentrator and affect its processing capacity. Shaking helps to reduce moisture accumulation, ensure that moisture is removed in time, and maintain the smoothness and stability of the processing process.

[0013] Furthermore, the top end of the first limit rod is rotatably connected to the outer wall of the sewage treatment box, the synchronous wheel in the second synchronous belt assembly is rotatably connected to the sewage treatment box, a second motor and a first motor are installed on one side of the sewage treatment box, the output end of the second motor is rotatably connected to the sewage treatment box, and the through-end of the second motor is fixedly connected to the first limit rod, the output end of the first motor is rotatably connected to the sewage treatment box, and the through-end of the first motor is fixedly connected to a connecting rod, the other end of the connecting rod is rotatably connected to the sewage treatment box, and the through-end of the connecting rod is fixedly connected to the synchronous wheel in the second bevel gear located at the top of the sewage treatment box.

[0014] Through the above technical solution, through the combination of transportation and extrusion, the sludge is constantly moving and compressed on the filter belt. This dynamic process can break up large particles in the sludge, reduce the chance of filter belt clogging, maintain efficient operation of the equipment, and reduce the frequency of maintenance.

[0015] Furthermore, the second slider located on one side of the sewage treatment box body is fixedly connected to a second L-shaped connecting piece, and a third bevel gear is rotatably connected to one side of the second L-shaped connecting piece, the third bevel gear connecting shaft is rotatably connected with the second L-shaped connecting piece and the second slider, and the through end of the third bevel gear connecting shaft is fixedly connected to the second roller shaft, the third bevel gear is transmission connected to a fourth bevel gear, and the fourth bevel gear is rotatably connected to the second L-shaped connecting piece, the fourth bevel gear is slidably connected with a second limit rod, and the second limit rod laterally limits the fourth bevel gear, the second limit rod penetrates and does not contact the second L-shaped connecting piece, the top end of the second limit rod rotates with the outer wall of the sewage treatment box body, and the bottom ends of the second limit rods located on both sides of the outer wall of the sewage treatment box body are fixedly connected with the third synchronous belt assembly, and the second limit rod is fixed to the synchronous wheel inside the third synchronous belt assembly, and the synchronous wheel in the third synchronous belt assembly is rotatably connected to the outer wall of the sewage treatment box body.

[0016] Furthermore, a fourth motor is installed on one side of the sewage treatment box, an output end of the fourth motor is rotatably connected to the sewage treatment box, and a through end of the fourth motor is fixedly connected to a synchronous wheel in the third synchronous belt assembly.

[0017] Through the above technical solution, applying periodic impact force can make the pressure distribution on the sludge more uniform, avoid local over-squeezing or excessive wear of the filter belt, increase the service life of the filter belt and reduce the risk of equipment failure.

[0018] Furthermore, one end of the first scraper is located between the two first filter belts, and the other end of the first scraper is located at the bottom of the second filter belt. A through hole is opened through the center of the slope inside the sewage treatment box, and a drain pipe is installed at the bottom of the sewage treatment box. The drain pipe is connected to the inside of the sewage treatment box through the through hole inside the sewage treatment box, and a water inlet tank is installed at the top of the gravity concentration area of ​​the sewage treatment box.

[0019] Furthermore, a leveling plate is provided on one side of the water inlet tank, and the leveling plate is movably connected to the top of the sewage treatment tank through a threaded rod, and two second scrapers are provided on one side of the extrusion area of ​​the sewage treatment tank, and the two second scrapers are fixedly connected to the inner wall of the sewage treatment tank, and the two second scrapers are arranged in a mirror image, and one end of the second scraper located inside the sewage treatment tank is in contact with the first filter belt.

[0020] Through the above technical solution, the moisture in the sludge is removed, thereby greatly reducing the volume of the sludge, which makes the subsequent sludge disposal more efficient and reduces the costs of transportation, storage and disposal.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention adopts an extrusion and transportation mechanism, in which the first motor and the second motor operate simultaneously, and the first motor drives the connecting rod to rotate, so that the first synchronous belt assembly is transmitted, so that the synchronous wheels on both sides of the first synchronous belt assembly drive the first connecting plate to rotate synchronously and generate relative rotation with the synchronous wheels in the first synchronous belt assembly, thereby pulling a fork-shaped seat to reciprocate in a linear direction. Under the action of the four second connecting plates, the four second connecting plates generate relative rotation with each other, so that the two fork-shaped seats and the U-shaped seats reciprocate in opposite and separate directions respectively, so that the two first filter belts reciprocate up and down in opposite and separate directions when extruding and transporting the mud, ensuring the continuous extrusion of the mud in the whole process, avoiding uneven dehydration or poor effect due to static or simple insufficient squeezing;

[0022] (2) The present invention adopts a rapid dehydration mechanism. The fourth motor drives the third synchronous belt assembly to transmit, so that the second limit rods on both sides of the sewage treatment box rotate at the same time, thereby driving the fourth bevel gear to rotate and then the third bevel gear to rotate, driving the second rollers on both sides of the second filter belt to rotate, thereby driving the second filter belt to drive. The hollow cam inside the second roller rotates at the same time. Under the action of the protruding end of the cam, centrifugal force is generated and under the cooperation of the second spring, the second slider moves in a small range in the second limit rod, so that the second filter belt follows the synchronous up and down cyclic movement. When the second slider moves up and down, the second L-shaped connecting piece moves synchronously, and the fourth bevel gear slides up and down on the second limit rod, so that the baffle at the bottom of the second filter belt beats the second filter belt and its mud, so as to achieve the purpose of beating the mud while transporting the second filter belt, which can effectively prevent the accumulation of particles squeezed by the mud, maintain the uniformity of the mud layer, avoid local accumulation and affect the dehydration effect. At the same time, it can promote the mud to be more evenly distributed on the filter belt, avoid sludge accumulation in certain areas, help the filter belt to maintain a consistent treatment effect throughout the filtration process, and improve the efficiency of gravity dehydration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0024] Figure 2 is a schematic diagram of the structure of the present invention from a second viewing angle;

[0025] Figure 3 It is a third perspective structural schematic diagram of the present invention;

[0026] Figure 4 is a schematic diagram of the structure from a fourth viewing angle of the present invention;

[0027] Figure 5 It is a cross-sectional structural schematic diagram of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the connection between the connecting plate and the first roller shaft of the present invention;

[0029] Figure 7 yes Figure 2 A schematic diagram of the enlarged structure at point A;

[0030] Figure 8 It is a schematic structural diagram of the connection between the second connecting plate and the first connecting plate of the present invention from a first viewing angle;

[0031] Fig. 9 is a schematic structural diagram of the connection between the second connecting plate and the first connecting plate of the present invention from a second viewing angle;

[0032] Fig.10 yes Figure 3 A schematic diagram of the enlarged structure at B;

[0033] Fig.11 is a schematic diagram of the internal structure of the second filter belt of the present invention;

[0034] Fig.12 yes Figure 3 A schematic diagram of the enlarged structure at C;

[0035] Fig.13 yes Figure 4 Enlarged structural diagram at D.

[0036] Figure numerals: 1, sewage treatment box; 2, water inlet tank; 3, leveling plate; 4, first scraper; 5, second scraper; 6, drainage pipe; 7, extrusion transport mechanism; 8, rapid dehydration mechanism; 9, chute; 10, slope; 71, first roller; 72, first filter belt; 73, connecting plate; 74, first slider; 75, first spring; 76, first synchronous belt assembly; 77, L-shaped fixing plate; 78, first connecting plate; 79, second connecting plate; 710, U-shaped seat; 711, fork-shaped seat; 712, connecting rod; 713, first motor; 714, first L-shaped connecting piece; 715, first bevel gear; 716, second bevel gear; 717, first limiting rod; 718, second synchronous belt assembly; 719, second motor; 81, second roller; 82, stop rod; 83, cam; 84, second slider; 85, second spring; 86, second L-shaped connecting piece; 87, third bevel gear; 88, fourth bevel gear; 89, second limiting rod; 810, third synchronous belt assembly; 811, fourth motor; 812, second filter belt. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] like Figure 1-Figure 5 As shown, a sludge concentration treatment device in sewage treatment of the present embodiment includes a sewage treatment box 1, and slopes 10 are provided on both sides of the bottom surface of the interior of the sewage treatment box 1, and a plurality of chutes 9 are provided through the outer walls of both sides of the sewage treatment box 1, and the slopes 10 divide the two sides of the sewage treatment box 1 into a gravity concentration area and an extrusion area, and a first scraper 4 is installed between the gravity concentration area and the extrusion area of ​​the sewage treatment box 1, one end of the first scraper 4 is located between the two first filter belts 72, and the other end of the first scraper 4 is located at the bottom of the second filter belt 812, a through hole is provided through the center of the slope 10 inside the sewage treatment box 1, and a drain pipe 6 is installed at the bottom of the sewage treatment box 1 to remove moisture from the sludge, thereby greatly reducing the volume of the sludge, which makes the subsequent sludge disposal more efficient and reduces the cost of transportation, storage and disposal.

[0039] The drain pipe 6 is connected to the interior of the sewage treatment box 1 through a through hole inside the sewage treatment box 1. An inlet tank 2 is installed on the top of the gravity concentration area of ​​the sewage treatment box 1. A leveling plate 3 is arranged on one side of the water inlet tank 2. The leveling plate 3 is movably connected to the top of the sewage treatment box 1 through a threaded rod, which can help the sludge to loosen from the surface of the filter belt and reduce the adhesion of the sludge to the filter belt, thereby extending the service life of the filter belt. Two second scrapers 5 are arranged on one side of the extrusion area of ​​the sewage treatment box 1. The two second scrapers 5 are fixedly connected to the inner wall of the sewage treatment box 1, and the two second scrapers 5 are arranged in a mirror image. One end of the second scraper 5 located inside the sewage treatment box 1 contacts the first filter belt 72. An extrusion and transportation mechanism 7 is arranged on one side of the first scraper 4, and the extrusion and transportation mechanism 7 is located in the extrusion area of ​​the sewage treatment box 1, which is used for elastically hammering and extruding the mud and reducing the moisture removal time of the mud.

[0040] like Figure 2-Figure 10 As shown, the extrusion transport mechanism 7 includes a first synchronous belt assembly 76 arranged in a triangular structure, and a plurality of second connecting plates 79 are respectively arranged on both sides of the first synchronous belt assembly 76. The four second connecting plates 79 located on one side of the first synchronous belt assembly 76 are alternately connected in rotation from head to tail, and the four second connecting plates 79 are arranged in a diamond structure. The connection between the four second connecting plates 79 is respectively connected in rotation with two U-shaped seats 710 and fork-shaped seats 711. The fork-shaped seat 711 is slidably connected to the outer wall of the sewage treatment box 1 at one end away from the second connecting plate 79.

[0041] The U-shaped seat 710 is fixedly connected to the first slider 74 at one end away from the second connecting plate 79, and the first slider 74 located on one side of the sewage treatment box 1 is fixedly connected to the first L-shaped connecting piece 714, and the first bevel gear 715 is rotatably connected to one side of the first L-shaped connecting piece 714. The connecting shaft of the first bevel gear 715 is rotatably connected to the first L-shaped connecting piece 714, the first slider 74 and the connecting plate 73, and the through end of the connecting shaft of the first bevel gear 715 is fixedly connected to the first roller shaft 71 at one end of the connecting plate 73. The first bevel gear 715 is transmission-connected to the second bevel gear 716 on one side, and the second bevel gear 716 is rotatably connected to the first L-shaped connecting piece 714. The second bevel gear 716 located at the top and bottom of one side of the sewage treatment box 1 is slidably connected to the first limiting rod 717, and the first limiting rod 717 laterally limits the second bevel gear 716, and the first limiting rod 717 is in a non-contact state with the first L-shaped connecting piece 714.

[0042] The bottom ends of the first limit rods 717 on both sides are fixedly connected with the second synchronous belt assembly 718, the top end of the first limit rod 717 is rotatably connected to the outer wall of the sewage treatment box 1, the synchronous wheel in the second synchronous belt assembly 718 is rotatably connected to the sewage treatment box 1, and the second motor 719 and the first motor 713 are installed on one side of the sewage treatment box 1, the output end of the second motor 719 is rotatably connected to the sewage treatment box 1, and the through end of the second motor 719 is fixedly connected to the first limit rod 717, the output end of the first motor 713 is rotatably connected to the sewage treatment box 1, and the through end of the first motor 713 is fixedly connected to the connecting rod 712, and the other end of the connecting rod 712 is rotatably connected to the sewage treatment box 1.

[0043] like Figure 3-Figure 10 The through end of the connecting rod 712 is fixedly connected to the synchronous wheel located at the top of the sewage treatment box 1 in the second bevel gear 716, and the first limiting rod 717 is fixedly connected to the synchronous wheel in the second synchronous belt assembly 718. The first slider 74 is located in the slide groove 9 of the sewage treatment box 1, and the first slider 74 is slidably connected to the sewage treatment box 1. The top and bottom of the two first sliders 74 are respectively fixedly connected to the first spring 75, and the other end of the first spring 75 is fixedly connected to the sewage treatment box 1. The synchronous wheels on both sides of the first synchronous belt assembly 76 are connected by rotation. The L-shaped fixed plate 77 is fixedly connected to the outer wall of the sewage treatment box 1, and another synchronous wheel in the first synchronous belt assembly 76 is rotatably connected to the outer wall of the sewage treatment box 1. A number of connecting plates 73 are fixedly connected between a number of first sliders 74 located on both sides of the top of the sewage treatment box 1. Through the combination of transport and extrusion, the sludge continuously moves and is compressed on the filter belt. This dynamic process can break up large particles in the sludge, reduce the chance of filter belt clogging, maintain efficient operation of the equipment, and reduce the frequency of maintenance. The connecting plate 73 is slidably connected to the inside of the sewage treatment box 1.

[0044] A plurality of connecting plates 73 located at the top of the sewage treatment box 1 are connected to a plurality of first rollers 71 through the first filter belt 72. The first rollers 71 located at both ends of the first filter belt 72 are mainly used to drive the first filter belt 72, while the first rollers 71 in the middle are used to squeeze the mud. A first connecting plate 78 is rotatably connected to the connection between one of the fork-shaped seats 711 and the second connecting plate 79. The other end of the first connecting plate 78 is rotatably connected to the eccentric part of the synchronous wheel in the first synchronous belt assembly 76. The U-shaped seat 710 is far away. A U-shaped seat 710 is fixedly connected to one end of the second connecting plate 79, and a first spring 75 is fixedly connected to the top surface of the U-shaped seat 710. Applying periodic impact force can make the pressure distribution of the sludge more uniform, avoid local over-squeezing or excessive wear of the filter belt, improve the service life of the filter belt and reduce the risk of equipment failure. A quick dehydration mechanism 8 is provided on one side of the first spring 75, and the quick dehydration mechanism 8 is located in the gravity concentration area of ​​the sewage treatment box 1, and is used for shaking the concentrated slurry in the sewage for gravity dehydration and reducing the adhesion of the sludge to the filter belt.

[0045] like Figure 4-Figure 13 As shown, the quick dehydration mechanism 8 includes three second rollers 81 arranged in a triangular structure, and two of the three second rollers 81 are hollow in structure, and the other second roller 81 is solid in structure, and the other second roller 81 with a solid structure is rotatably connected to the inner wall of the sewage treatment box 1, and the two second rollers 81 with hollow structures are fixedly connected with cams 83. Due to the fixed connection between the cam 83 and the second roller 81, when the cam 83 rotates, the change in its shape will push the second roller 81 to move up and down, and the second slider 84 connected to the second roller 81 is limited by the sewage treatment box 1, which ensures that the second roller 81 will not exceed the predetermined range of motion. Therefore, the second roller 81, driven by the cam 83, will make an up and down circular motion within a certain range, and the three second rollers 81 are transmitted through the second filter belt 812.

[0046] At the same time, a plurality of baffles 82 are arranged at the bottom of the second filter belt 812, and both ends of the baffles 82 are fixedly connected to the inner wall of the sewage treatment box 1, and both ends of the second roller shafts 81 with hollow structures inside are rotatably connected with second sliders 84, and the second slider 84 located on one side of the sewage treatment box 1 is fixedly connected with a second L-shaped connecting piece 86, and one side of the second L-shaped connecting piece 86 is rotatably connected with a third bevel gear 87, and the third bevel gear 87 connecting shaft is rotatably connected with the second L-shaped connecting piece 86 and the second slider 84, and the third bevel gear 87 connecting shaft is fixedly connected with the second roller shaft 81, and the third bevel gear 87 is transmission-connected with a fourth bevel gear 88, so that the mud is vibrated. The moisture in the filter belt is more easily discharged from the filter belt, which accelerates the penetration and discharge of moisture, so that the initial gravity dehydration stage can be completed more efficiently, reducing the additional dehydration workload required in subsequent steps, and the fourth bevel gear 88 is rotatably connected to the second L-shaped connecting piece 86, and the fourth bevel gear 88 is slidably connected with the second limit rod 89, and the second limit rod 89 laterally limits the fourth bevel gear 88, and the second limit rod 89 penetrates the second L-shaped connecting piece 86 without contact, the top end of the second limit rod 89 rotates with the outer wall of the sewage treatment box 1, and the bottom ends of the second limit rods 89 located on both sides of the outer wall of the sewage treatment box 1 are fixedly connected with the third synchronous belt assembly 810.

[0047] The accumulation of moisture on the filter belt will increase the burden on the belt concentrator and affect its processing capacity. The shaking helps to reduce the accumulation of moisture, ensure that the moisture is removed in time, and maintain the smoothness and stability of the processing process. A fourth motor 811 is installed on one side of the sewage treatment box 1. The output end of the fourth motor 811 is rotatably connected to the sewage treatment box 1, and the through end of the fourth motor 811 is fixedly connected to the synchronous wheel in the third synchronous belt assembly 810, and the second limit rod 89 is fixed to the synchronous wheel inside the third synchronous belt assembly 810. The synchronous wheel in the third synchronous belt assembly 810 is rotatably connected to the outer wall of the sewage treatment box 1. The second slider 84 is fixedly connected to the top and bottom with a second spring 85, which is used to drive the cam 83 to shake elastically to reduce the initial gravity dehydration time of the sludge in the sewage.

[0048] The working principle of this embodiment is as follows: the mud with sewage is poured into the water inlet tank 2 and gradually poured onto the second filter belt 812. The fourth motor 811 drives the third synchronous belt assembly 810 to transmit, so that the second limit rods 89 on both sides of the sewage treatment box 1 rotate at the same time, thereby driving the fourth bevel gear 88 to rotate and then the third bevel gear 87 to rotate, driving the second rollers 81 on both sides of the second filter belt 812 to rotate, thereby driving the second filter belt 812 to transmit, and the mud with sewage is flattened on the second filter belt 812 under the action of the leveling plate 3.

[0049] When the second rollers 81 on both sides of the second filter belt 812 rotate, the hollow cams 83 inside the second rollers 81 rotate at the same time. Under the action of the protruding ends of the cams 83, centrifugal force is generated. Under the cooperation of the second spring 85, the second slider 84 moves in a small range in the second limit rod 89, so that the second filter belt 812 follows the synchronous up and down circular movement. When the second slider 84 moves up and down, the second L-shaped connecting piece 86 moves synchronously. At the same time, the fourth bevel gear 88 slides up and down on the second limit rod 89, so that The baffle 82 at the bottom of the second filter belt 812 beats the second filter belt 812 and the mud, so that the second filter belt 812 can beat the mud while transporting. Under the action of gravity, the water in the mud falls to the slope 10, gathers to the through hole at the center, and then is discharged through the drain pipe 6, thereby increasing the contact surface area between the second filter belt 812 and the mud and promoting the relative movement between the particles in the mud. This tiny vibration helps to accelerate the discharge of water, promotes the penetration of water and the outflow of water from the pores of the second filter belt 812, thereby enhancing the efficiency of the initial gravity dehydration process.

[0050] After the initial gravity dehydration is completed, the mud follows the second filter belt 812 to move to the first scraper 4. After the first scraper 4 scrapes the mud off the second filter belt 812, it slides through the inclined surface of the first scraper 4 to between the two first filter belts 72. The first motor 713 and the second motor 719 operate simultaneously. The first motor 713 drives the connecting rod 712 to rotate, so that the first synchronous belt assembly 76 is transmitted, so that the synchronous wheels on both sides of the first synchronous belt assembly 76 drive the first connecting plate 78 to rotate synchronously and the synchronous wheels in the first synchronous belt assembly 76 rotate relatively, thereby pulling a fork-shaped seat 711 to reciprocate in the linear direction, and the four second connecting plates 79 Under the action of , the four second connecting plates 79 rotate relative to each other, so that the two fork-shaped seats 711 and the U-shaped seat 710 reciprocate in opposite and separate directions respectively, and when the U-shaped seat 710 moves up and down reciprocatingly in opposite and separate directions, with the cooperation of the first spring 75, the two first sliding blocks 74 move up and down in the slide groove 9, thereby driving the connecting plate 73 to move synchronously, so that the two first filter belts 72 move up and down reciprocatingly in opposite and separate directions at the same time when squeezing and transporting the mud, and periodically impact the mud, thereby strengthening the squeezing of the mud, thereby squeezing more water out of the sludge, significantly reducing the water content of the sludge, and improving the dehydration effect.

[0051] After the second motor 719 drives the second synchronous belt assembly 718 to transmit, it synchronously drives the first limiting rod 717 to rotate, so that the second bevel gear 716 rotates to drive the first bevel gear 715 to rotate, thereby making the first rollers 71 at both ends of the first filter belt 72 rotate, driving the first filter belt 72 to transmit, and the mirror-image relationship between the first L-shaped connecting piece 714 and the first bevel gear 715 on the two first sliders 74 can make the two first filter belts 72 transmit in opposite directions, thereby pushing the mud forward, and when the first slider 74 moves up and down reciprocatingly and in different directions, the first L-shaped connecting piece 714 moves synchronously, so that when the second bevel gear 716 slides on the first limiting rod 717, it can always keep the purpose of driving the first filter belt 72 for transportation.

[0052] The sewage in the squeezing process falls to the slope 10 under the action of gravity, gathers to the through hole at the center, and is then discharged through the drain pipe 6. The mud after squeezing is scraped off by the second scraper 5 and collected.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A sludge concentration treatment device in sewage treatment, comprising a sewage treatment box (1), wherein the sewage treatment box (1) has slopes (10) on both sides of the bottom surface, and the outer walls on both sides of the sewage treatment box (1) are penetrated by a plurality of slideways (9), wherein the slopes (10) divide the two sides of the sewage treatment box (1) into a gravity concentration area and an extrusion area, and a first scraper (4) is installed between the gravity concentration area and the extrusion area of ​​the sewage treatment box (1), characterized in that: A squeezing and transporting mechanism (7) is provided on one side of the first scraper (4), and the squeezing and transporting mechanism (7) is located in the squeezing area of ​​the sewage treatment box (1), and is used for elastically hammering and squeezing the mud and reducing the time for removing moisture from the mud; The extrusion transport mechanism (7) comprises a first synchronous belt assembly (76) arranged in a triangular structure, a plurality of second connecting plates (79) are respectively arranged on both sides of the first synchronous belt assembly (76), four second connecting plates (79) located on one side of the first synchronous belt assembly (76) are rotatably connected alternately head to tail, and the four second connecting plates (79) are arranged in a diamond structure, and the connection points between the four second connecting plates (79) are rotatably connected to two U-shaped seats (710) and fork-shaped seats (711), and one of the fork-shaped seats (711) is connected to the second connecting plate (79). A first connecting plate (78) is rotatably connected to the first connecting plate (78), the other end of the first connecting plate (78) is rotatably connected to the eccentric part of the synchronous wheel in the first synchronous belt assembly (76), one end of the U-shaped seat (710) away from the second connecting plate (79) is fixedly connected to the U-shaped seat (710), the top surface of the U-shaped seat (710) is fixedly connected to the first spring (75), one side of the first spring (75) is provided with a quick dehydration mechanism (8), and the quick dehydration mechanism (8) is located in the gravity concentration area of ​​the sewage treatment box (1), and is used for shaking the concentrated slurry in the sewage to gravity dehydrate and reduce the adhesion of the sludge to the filter belt; The rapid dehydration mechanism (8) comprises three second rollers (81) arranged in a triangular structure, wherein two of the three second rollers (81) are arranged with hollow structures inside, and the other second roller (81) is arranged with a solid structure inside. The other second roller (81) with a solid structure inside is rotatably connected to the inner wall of the sewage treatment box (1). The two second rollers (81) with hollow structures inside are fixedly connected with cams (83). The three second rollers (81) are transmitted through a second filter belt (812). At the same time, a plurality of baffles (82) are arranged at the bottom of the second filter belt (812). The two ends of the baffles (82) are fixedly connected to the inner wall of the sewage treatment box (1). The two ends of the second rollers (81) with hollow structures inside are rotatably connected with second sliders (84). The top and bottom of the second slider (84) are fixedly connected with second springs (85) for driving the cam (83) to perform elastic shaking, thereby reducing the initial gravity dehydration time of the sludge in the sewage.

2. A sludge concentration treatment device for sewage treatment according to claim 1, characterized in that: The end of the fork-shaped seat (711) away from the second connecting plate (79) is slidably connected to the outer wall of the sewage treatment box (1); the end of the U-shaped seat (710) away from the second connecting plate (79) is fixedly connected to a first slider (74); the first slider (74) is located in a slide groove (9) of the sewage treatment box (1); and the first slider (74) is slidably connected to the sewage treatment box (1); the top and bottom of the two first sliders (74) are respectively fixedly connected to a first spring (75); the other end of the first spring (75) is fixedly connected to the sewage treatment box (1); the first synchronous belt assembly ( The synchronous wheels on both sides of the first synchronous belt assembly (76) are fixedly connected to the outer wall of the sewage treatment box (1) through a rotatably connected L-shaped fixed plate (77), and another synchronous wheel in the first synchronous belt assembly (76) is rotatably connected to the outer wall of the sewage treatment box (1). A plurality of connecting plates (73) are fixedly connected between a plurality of the first sliding blocks (74) located on both sides of the top of the sewage treatment box (1), and the connecting plates (73) are slidably connected to the inside of the sewage treatment box (1). A plurality of first rollers (71) are transmission-connected between the plurality of the connecting plates (73) located on the top of the sewage treatment box (1) through a first filter belt (72).

3. The sludge concentration treatment device in sewage treatment according to claim 2 is characterized in that: The first slider (74) located at one side of the sewage treatment box (1) is fixedly connected to a first L-shaped connecting piece (714); one side of the first L-shaped connecting piece (714) is rotatably connected to a first bevel gear (715); a connecting shaft of the first bevel gear (715) penetrates and rotatably connects with the first L-shaped connecting piece (714), the first slider (74) and the connecting plate (73); a through-end of the connecting shaft of the first bevel gear (715) is fixedly connected to a first roller (71) located at one end of the connecting plate (73); one side of the first bevel gear (715) is transmission-connected to a second bevel gear (716); and the second bevel gear (716) is rotationally connected to the first L-shaped connecting piece (714), the first slider (74) and the connecting plate (73). The gear (716) is rotationally connected to the first L-shaped connecting piece (714); the second bevel gear (716) located at the top and bottom of one side of the sewage treatment box (1) is slidably connected to a first limiting rod (717); the first limiting rod (717) limits the second bevel gear (716) in the lateral direction, and the first limiting rod (717) and the first L-shaped connecting piece (714) are in a non-contact state; the bottom ends of the first limiting rods (717) on both sides are fixedly connected to a second synchronous belt assembly (718), and the first limiting rod (717) is fixedly connected to a synchronous wheel in the second synchronous belt assembly (718).

4. The sludge concentration treatment device in sewage treatment according to claim 3 is characterized in that: The top end of the first limit rod (717) is rotatably connected to the outer wall of the sewage treatment box (1); the synchronous wheel in the second synchronous belt assembly (718) is rotatably connected to the sewage treatment box (1); a second motor (719) and a first motor (713) are mounted on one side of the sewage treatment box (1); the output end of the second motor (719) is rotatably connected to the sewage treatment box (1); the through end of the second motor (719) is fixedly connected to the first limit rod (717); the output end of the first motor (713) is rotatably connected to the sewage treatment box (1); the through end of the first motor (713) is fixedly connected to a connecting rod (712); the other end of the connecting rod (712) is rotatably connected to the sewage treatment box (1); the through end of the connecting rod (712) is fixedly connected to a synchronous wheel located at the top of the sewage treatment box (1) in the second bevel gear (716).

5. The sludge concentration treatment device in sewage treatment according to claim 1 is characterized in that: The second slider (84) located on one side of the sewage treatment box (1) is fixedly connected to a second L-shaped connecting piece (86); one side of the second L-shaped connecting piece (86) is rotatably connected to a third bevel gear (87); a connecting shaft of the third bevel gear (87) penetrates and rotatably connects with the second L-shaped connecting piece (86) and the second slider (84); a through-end of the connecting shaft of the third bevel gear (87) is fixedly connected to the second roller shaft (81); the third bevel gear (87) is transmission-connected to a fourth bevel gear (88); the fourth bevel gear (88) is rotatably connected to the second L-shaped connecting piece (86); the fourth bevel gear (88) penetrates and slidably connects to A second limiting rod (89), and the second limiting rod (89) limits the fourth bevel gear (88) laterally, the second limiting rod (89) and the second L-shaped connecting piece (86) penetrate each other without contact, the top end of the second limiting rod (89) rotates with the outer wall of the sewage treatment box (1), and the bottom ends of the second limiting rod (89) located on both sides of the outer wall of the sewage treatment box (1) are fixedly connected to the third synchronous belt assembly (810), and the second limiting rod (89) is fixed to the synchronous wheel inside the third synchronous belt assembly (810), and the synchronous wheel inside the third synchronous belt assembly (810) is rotatably connected to the outer wall of the sewage treatment box (1).

6. The sludge concentration treatment device in sewage treatment according to claim 5 is characterized in that: A fourth motor (811) is installed on one side of the sewage treatment box (1); an output end of the fourth motor (811) is rotatably connected to the sewage treatment box (1), and a through end of the fourth motor (811) is fixedly connected to a synchronous wheel in the third synchronous belt assembly (810).

7. The sludge concentration treatment device in sewage treatment according to claim 2 is characterized in that: One end of the first scraper (4) is located between the two first filter belts (72), and the other end of the first scraper (4) is located at the bottom of the second filter belt (812). A through hole is provided through the center of the slope (10) inside the sewage treatment box (1), and a drainage pipe (6) is installed at the bottom of the sewage treatment box (1). The drainage pipe (6) is connected to the interior of the sewage treatment box (1) through the through hole inside the sewage treatment box (1), and a water inlet tank (2) is installed at the top of the gravity concentration area of ​​the sewage treatment box (1).

8. The sludge concentration treatment device in sewage treatment according to claim 7 is characterized in that: A leveling plate (3) is provided on one side of the water inlet tank (2), and the leveling plate (3) is movably connected to the top of the sewage treatment tank (1) via a threaded rod, and two second scrapers (5) are provided on one side of the squeezing area of ​​the sewage treatment tank (1), and the two second scrapers (5) are fixedly connected to the inner wall of the sewage treatment tank (1), and the two second scrapers (5) are arranged in a mirror image, and one end of the second scraper (5) located inside the sewage treatment tank (1) contacts the first filter belt (72).

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