Sludge concentration and dewatering integrated device with self-cleaning scraper and vibration mechanism

Abstract

The utility model discloses a sludge concentration dehydration integrated device with self -cleaning scraper and vibration mechanism relates to sludge concentration dehydration integrated machine technical field, including by the frame main part, upper filter zone, lower filter zone constitutes sludge concentration dehydration integrated machine, scrape wall subassembly, vibration subassembly, two groups scrape wall subassembly respectively are used to carry out scrape wall operation to the surface of upper filter zone, lower filter zone, vibration subassembly with upper filter zone, lower filter zone inclined position's rear end contact is used for for upper filter zone, lower filter zone provides high -frequency vibration operation. The utility model discloses a scrape wall subassembly, vibration subassembly are set up, and the self -cleaning scraper, high -frequency vibration auxiliary and concentration dehydration integrated structure are combined, have solved the most intractable jam and maintenance problem in sludge dehydration pretreatment link, and the continuous operation ability and efficiency of equipment have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the technical field of integrated sludge thickening and dewatering machines, specifically an integrated sludge thickening and dewatering device with a self-cleaning scraper and a vibration mechanism. Background Technology

[0002] The belt conveyor sludge thickening and dewatering integrated machine is a continuous automated solid-liquid separation device that integrates thickening and dewatering functions. It is mainly used to reduce the water content of sludge. The working process of the belt conveyor sludge thickening and dewatering integrated machine is divided into the following stages: I. Flocculation Pretreatment: Before entering the machine, the sludge is thoroughly mixed and reacted with the added polymeric flocculant in the mixing reaction tank. This causes the tiny particles in the sludge to aggregate into large flocs, facilitating subsequent water capture; II. Gravity Concentration / Dehydration Zone: The flocculated sludge is first evenly spread on the horizontally moving filter belt. Under the action of gravity, a large amount of free water in the sludge will naturally pass through the filter belt and be separated. The main purpose of this stage is to initially increase the sludge concentration and reduce its fluidity in preparation for subsequent extrusion. 3. Wedge-shaped pre-compression zone: The sludge that has been dewatered by gravity then enters a wedge-shaped zone with a gradually narrowing gap. The upper and lower filter belts begin to slowly converge, applying initial and slight pressure to the sludge to further thicken it and enhance the compression stability of the flocs, smoothly transitioning to the high-pressure zone.

[0003] Fourth, the "S"-shaped pressing zone: This is the key link in deep dewatering. The sludge is sandwiched between the upper and lower filter belts and passes through multiple pressing rollers arranged in an "S" shape with diameters decreasing from large to small. During this process, the bending pressure and shear force on the sludge gradually increase from small to large, which can effectively squeeze out the capillary water in the sludge flocs and finally form a dry and hard sludge cake with low moisture content.

[0004] Existing belt sludge thickening and dewatering machines are equipped with scraper structures at the discharge end to scrape off residual sludge from the surface of the filter belt. However, in actual use, the scraper may not fit tightly with the filter belt, wear may occur, or the scraped sludge may accumulate on the scraper, resulting in sludge residue and filter belt blockage. Therefore, in order to further improve the anti-clogging function of the filter belt, an integrated sludge thickening and dewatering device with a self-cleaning scraper and a vibration mechanism is provided. Utility Model Content

[0005] The purpose of this invention is to provide an integrated sludge thickening and dewatering device with a self-cleaning scraper and a vibration mechanism to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated sludge thickening and dewatering device with a self-cleaning scraper and a vibration mechanism, comprising a sludge thickening and dewatering integrated machine consisting of a frame body, an upper filter belt, and a lower filter belt. The upper and lower filter belts are distributed vertically and are installed inside the frame body via conveying rollers. The upper filter belt is positioned at the discharge port of the frame body with its trajectory inclined upwards and its front end protruding beyond the front end of the lower filter belt. The lower filter belt is positioned at the discharge port of the frame body with its trajectory inclined downwards. Two sets of scraping components are installed at the front end of the main frame at the unloading port. The two sets of scraping components are used to scrape the surfaces of the upper filter belt and the lower filter belt, respectively. The frame body has mounting slots on both sides near the discharge port. Vibration components are mounted on the frame body through the mounting slots. The vibration components are in contact with the rear ends of the inclined parts of the upper and lower filter belts to provide high-frequency vibration operation for the upper and lower filter belts.

[0007] As a further embodiment of this utility model: the wall scraping assembly includes a scraper, a connecting shaft, a connecting arm, a pneumatic push rod, a connecting cylinder seat, a T-shaped rod, and a connecting lug; The connecting shaft is fixed to the front end of the scraper, and the connecting shaft is connected to the front end of the frame body through a bearing base. The connecting arm is fixed to one side of the connecting shaft. The tail end of the pneumatic push rod housing is rotatably connected to the frame body via a connecting lug seat. The front end of the pneumatic push rod output shaft is fixedly connected to the connecting cylinder seat. The T-shaped rod and the connecting lug are connected and fixed in sequence. The T-shaped rod is slidably connected to the connecting cylinder seat. The connecting lug is rotatably connected to the connecting arm. A pneumatic push rod is used to drive the scraper to rotate, thereby achieving the bonding operation between the scraper and the surface of the upper or lower filter belt.

[0008] As a further improvement of this utility model: a pressure sensor is also installed inside the connecting cylinder seat. The pressure sensor is located at the rear end of the T-shaped rod. The T-shaped rod is moved closer to and squeezed to the pressure sensor to monitor the adhesion status of the scraper with the upper or lower filter belt. A spring is also installed on the inner side of the connecting cylinder seat, located outside the pressure sensor. The spring is tightly fitted to the rear end of the T-shaped rod to provide a continuous thrust to the T-shaped rod. The connecting cylinder seat has an internal mounting groove for mounting pressure sensors and springs, and also has a limiting expansion groove for limiting the sliding of the T-shaped rod. The limiting expansion groove is connected to the mounting groove.

[0009] As a further embodiment of this utility model: the two scrapers are positioned to adhere to the upper and lower filter belts at the contact points between the upper and lower filter belts and the conveyor rollers.

[0010] As a further embodiment of this utility model: the vibration assembly includes a connecting frame and a small high-frequency vibrator; The connecting frame is fixedly connected to the main frame body by bolts and passes through the mounting slot. The connecting frame is distributed at the rear end of the inclined front end of the upper filter belt and the lower filter belt. The small high-frequency vibrator is installed at the front end of the connecting frame and fits against the rear end face of the inclined front end of the upper and lower filter belts. The operation of the small high-frequency vibrator is used to provide vibration power for the upper and lower filter belts.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By incorporating wall scraping and vibration components, and combining self-cleaning scrapers, high-frequency vibration assistance, and an integrated structure for concentration and dewatering, the most challenging clogging and maintenance issues in the sludge dewatering pretreatment process are resolved, significantly improving the equipment's continuous operation capability and efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the sludge thickening and dewatering integrated machine in the prior art of this utility model; Figure 2 This is a structural distribution diagram of the scraper assembly of this utility model at the discharge port of the main frame; Figure 3 This is another perspective view of the scraper assembly of this utility model at the unloading port of the main frame; Figure 4 This is a schematic diagram showing the distribution of the vibration components of this utility model; Figure 5 This is a cross-sectional view of the internal structure of the connecting cylinder seat of this utility model.

[0013] In the diagram: 1. Sludge thickening and dewatering integrated machine; 101. Main frame; 102. Upper filter belt; 103. Lower filter belt; 104. Mounting slot; 2. Scraper assembly; 201. Scraper; 202. Connecting shaft; 203. Connecting arm; 204. Pneumatic push rod; 205. Connecting cylinder seat; 206. T-shaped rod; 207. Connecting ear; 208. Limiting telescopic groove; 209. Pressure sensor; 210. Spring; 3. Vibration assembly; 301. Connecting frame; 302. Small high-frequency vibrator. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-5 In this embodiment of the present invention, a sludge thickening and dewatering integrated device with a self-cleaning scraper and a vibration mechanism includes a sludge thickening and dewatering integrated machine 1 consisting of a frame body 101, an upper filter belt 102, and a lower filter belt 103. The upper filter belt 102 and the lower filter belt 103 are distributed vertically and installed inside the frame body 101 by conveying rollers. The upper filter belt 102 is located at the discharge port of the frame body 101 with its trajectory inclined upward and the front end of the upper filter belt 102 protruding beyond the front end of the lower filter belt 103. The lower filter belt 103 is located at the discharge port of the frame body 101 with its trajectory inclined downward. Two sets of scraping components 2 are installed at the front end of the frame body 101 at the unloading port. The two sets of scraping components 2 are used to scrape the surfaces of the upper filter belt 102 and the lower filter belt 103, respectively. The frame body 101 has mounting slots 104 on both sides near the discharge port. The frame body 101 is equipped with a vibration component 3 through the mounting slots 104. The vibration component 3 contacts the rear end of the inclined part of the upper filter belt 102 and the lower filter belt 103, and is used to provide high-frequency vibration operation for the upper filter belt 102 and the lower filter belt 103. The wall scraping assembly 2 includes a scraper 201, a connecting shaft 202, a connecting arm 203, a pneumatic push rod 204, a connecting cylinder seat 205, a T-shaped rod 206, and a connecting lug 207; The connecting shaft 202 is fixed to the front end of the scraper 201, and the connecting shaft 202 is connected to the front end of the frame body 101 through the bearing base. The connecting arm 203 is fixed to one side of the connecting shaft 202. The tail end of the pneumatic push rod 204 housing is rotatably connected to the frame body 101 via a connecting ear seat. The front end of the output shaft of the pneumatic push rod 204 is fixedly connected to the connecting cylinder seat 205. The T-shaped rod 206 and the connecting ear 207 are connected and fixed in sequence. The T-shaped rod 206 is slidably connected to the connecting cylinder seat 205, and the connecting ear 207 is rotatably connected to the connecting arm 203. The pneumatic push rod 204 is used to drive the scraper 201 to rotate, thereby achieving the bonding operation between the scraper 201 and the surface of the upper filter belt 102 or the lower filter belt 103. A pressure sensor 209 is also installed inside the connecting cylinder seat 205. The pressure sensor 209 is located at the rear end of the T-shaped rod 206. The T-shaped rod 206 moves closer to and squeezes the pressure sensor 209 to monitor the contact status between the scraper 201 and the upper filter belt 102 or the lower filter belt 103. A spring 210 is also installed on the inner side of the connecting sleeve 205, which is located outside the pressure sensor 209. The spring 210 is tightly fitted with the rear end of the T-shaped rod 206 to provide a continuous thrust to the T-shaped rod 206. The connecting sleeve seat 205 has an internal mounting groove for mounting the pressure sensor 209 and the spring 210. The connecting sleeve seat 205 also has a limiting expansion groove 208 for limiting the sliding of the T-shaped rod 206. The limiting expansion groove 208 is connected to the mounting groove.

[0016] In this embodiment, it should be further explained that the operating structure of this sludge thickening and dewatering integrated machine 1 is as follows: Figure 1 As shown, the overall operating principle is the same as that of the commonly available belt sludge thickening and dewatering integrated machine on the market. Therefore, the detailed structure and operating principle of the sludge thickening and dewatering integrated machine 1 will not be elaborated here. While the sludge is dewatered by the operation of the upper filter belt 102 and the lower filter belt 103, the pneumatic push rod 204 is extended. The pneumatic push rod 204 can push the scraper 201 to flip, so that the scraper 201 moves closer to the upper filter belt 102 or the lower filter belt 103 and finally adheres to the surface of the upper filter belt 102 and the lower filter belt 103. In this way, the sludge remaining on the surface of the upper filter belt 102 and the lower filter belt 103 can be scraped off, achieving the effect of removing stubborn sludge adhering to the surface of the filter cloth. Meanwhile, when the scraper 201 is not in contact with the filter belt, the T-shaped rod 206 does not contact the pressure sensor 209 under the action of the spring 210. When the pneumatic push rod 204 drives the scraper 201 to approach and adhere to the filter belt, after the scraper 201 adheres to the filter belt, the pneumatic push rod 204 continues to run and extend a certain distance. At this time, the T-shaped rod 206 approaches the pressure sensor 209 and squeezes the spring 210 to further contract. Finally, the connecting cylinder seat 205 adheres to the connecting ear 207, realizing the adhesion and pressing of the scraper 201 and the surface of the filter belt. At the same time, the T-shaped rod 206 squeezes the pressure sensor 209 to generate an electrical signal. This electrical signal is transmitted to the controller, and the controller controls the pneumatic push rod 204 to stop running, thereby maintaining a suitable pressure between the scraper 201 and the filter belt. Meanwhile, when the scraper 201 develops gaps due to wear, the spring 210 can push the scraper 201 to flip and adhere to the filter belt. The pressure of the T-shaped steel 206, which is greater than that of the pressure sensor 209, decreases, and the resulting change in electrical signal is transmitted to the controller. The controller then controls the pneumatic push rod 204 to start running and press the scraper 201 tightly. In this way, the problem of sludge residue caused by poor adhesion between the scraper and the filter belt and wear can be effectively avoided. In addition, the control system controls the pneumatic push rod 204 to reciprocate according to a preset time interval, and the scraper 201 swings, so that the sludge remaining on the surface of the scraper 201 falls off, thus achieving the effect of cleaning the scraper 201.

[0017] Please refer to this carefully. Figures 2-4 The two scrapers 201 are positioned to contact the upper filter belt 102 and the lower filter belt 103 at the contact points between the upper filter belt 102 and the lower filter belt 103 and the conveyor roller.

[0018] In this embodiment: With this structure, the contact point between the scraper 201 and the upper filter belt 102 and the lower filter belt 103 can be supported by the conveying roller, so as to avoid deformation of the upper filter belt 102 and the lower filter belt 103 due to the squeezing of the scraper 201, thereby ensuring the stability of the scraping of the scraper 201 and the upper filter belt 102 and the lower filter belt 103.

[0019] Please refer to this carefully. Figures 2-4 The vibration assembly 3 includes a connecting frame 301 and a small high-frequency vibrator 302; The connecting frame 301 is fixedly connected to the frame body 101 by bolts and passes through the mounting slot 104. The connecting frame 301 is distributed at the rear end of the inclined front end of the upper filter belt 102 and the lower filter belt 103. The small high-frequency vibrator 302 is installed at the front end of the connecting frame 301 and is attached to the rear end face of the inclined front end of the upper filter belt 102 and the lower filter belt 103. The small high-frequency vibrator 302 is used to provide vibration power for the upper filter belt 102 and the lower filter belt 103.

[0020] In this embodiment: while the scraper 201 is working or during intermittent oscillation, a small high-frequency vibrator 302 (such as an electromagnetic vibrator) is activated. The small high-frequency vibrator 302 provides vibration force to the upper filter belt 102 and the lower filter belt 103, causing the black filament upper filter belt 102 and the lower filter belt 103 to vibrate, thereby helping to shake off the fine particles embedded in the filter belt pores, significantly improving the cleaning effect of the filter belt and extending the filter belt life.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sludge thickening and dewatering integrated device with a self-cleaning scraper and vibration mechanism, comprising a sludge thickening and dewatering integrated machine (1) consisting of a frame body (101), an upper filter belt (102), and a lower filter belt (103), characterized in that, The upper filter belt (102) and the lower filter belt (103) are distributed vertically and installed on the inner side of the frame body (101) by conveying rollers. The upper filter belt (102) is located at the discharge port of the frame body (101) with its trajectory inclined upward and the front end of the upper filter belt (102) protruding beyond the front end of the lower filter belt (103). The lower filter belt (103) is located at the discharge port of the frame body (101) with its trajectory inclined downward. The frame body (101) is equipped with two sets of scraping components (2) at the front end of the discharge port. The two sets of scraping components (2) are used to scrape the surfaces of the upper filter belt (102) and the lower filter belt (103) respectively. The frame body (101) has mounting slots (104) on both sides near the discharge port. The frame body (101) is equipped with a vibration component (3) through the mounting slots (104). The vibration component (3) contacts the rear end of the inclined part of the upper filter belt (102) and the lower filter belt (103) to provide high-frequency vibration operation for the upper filter belt (102) and the lower filter belt (103).

2. The sludge thickening and dewatering integrated device with self-cleaning scraper and vibration mechanism according to claim 1, characterized in that, The wall scraping assembly (2) includes a scraper (201), a connecting shaft (202), a connecting arm (203), a pneumatic push rod (204), a connecting cylinder seat (205), a T-shaped rod (206), and a connecting lug (207). The connecting shaft (202) is fixed to the front end of the scraper (201), and the connecting shaft (202) is connected to the front end of the frame body (101) through the bearing base. The connecting arm (203) is fixed to one side of the connecting shaft (202). The tail end of the pneumatic push rod (204) housing is rotatably connected to the frame body (101) via a connecting lug. The front end of the output shaft of the pneumatic push rod (204) is fixedly connected to the connecting cylinder seat (205). The T-shaped rod (206) and the connecting lug (207) are connected and fixed in sequence. The T-shaped rod (206) is slidably connected to the connecting cylinder seat (205). The connecting lug (207) is rotatably connected to the connecting arm (203). The pneumatic push rod (204) is used to drive the scraper (201) to rotate, thereby achieving the bonding operation between the scraper (201) and the surface of the upper filter belt (102) or the lower filter belt (103).

3. The sludge thickening and dewatering integrated device with self-cleaning scraper and vibration mechanism according to claim 2, characterized in that, A pressure sensor (209) is also installed inside the connecting cylinder seat (205). The pressure sensor (209) is located at the rear end of the T-shaped rod (206). The T-shaped rod (206) moves closer to and squeezes the pressure sensor (209) to monitor the fit of the scraper (201) with the upper filter belt (102) or the lower filter belt (103). A spring (210) is also installed on the inner side of the connecting sleeve (205) on the outer side of the pressure sensor (209). The spring (210) is in close contact with the rear end of the T-shaped rod (206) to provide a continuous thrust to the T-shaped rod (206). The connecting cylinder seat (205) has an installation groove for mounting pressure sensor (209) and spring (210) inside, and a limiting expansion groove (208) for limiting sliding of T-shaped rod (206) is also provided inside the connecting cylinder seat (205). The limiting expansion groove (208) is connected to the installation groove.

4. The sludge thickening and dewatering integrated device with self-cleaning scraper and vibration mechanism according to claim 2, characterized in that, The two scrapers (201) are positioned to contact the upper filter belt (102) and the lower filter belt (103) at the locations where the upper filter belt (102) and the lower filter belt (103) are in contact with the conveyor roller.

5. The sludge thickening and dewatering integrated device with self-cleaning scraper and vibration mechanism according to claim 1, characterized in that, The vibration assembly (3) includes a connecting frame (301) and a small high-frequency vibrator (302); The connecting frame (301) is fixedly connected to the frame body (101) by bolts and passes through the mounting slot (104). The connecting frame (301) is distributed at the rear end of the inclined front end of the upper filter belt (102) and the lower filter belt (103). The small high-frequency vibrator (302) is installed at the front end of the connecting frame (301) and is attached to the rear end face of the inclined front end of the upper filter belt (102) and the lower filter belt (103). The small high-frequency vibrator (302) is used to provide vibration power for the upper filter belt (102) and the lower filter belt (103).

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