Ultrahigh pressure filter press for sludge dewatering

Abstract

The invention belongs to the technical field of sludge treatment, and discloses an ultrahigh pressure filter press for sludge dewatering, the ultrahigh pressure filter press comprises a filtering mechanism, the filtering mechanism comprises a filtering frame, the side surface of the filtering frame is provided with a groove, and the top of the filtering frame is fixedly connected with a first filtering plate; through cooperation of structures such as a fluted disc and teeth, the pore size through which filtrate can pass is adjusted conveniently, the pore size through which the filtrate can pass is equal to the size of a first filter pore in the initial stage of dehydration and when the water content of sludge is high, at the moment, the porosity is large, free water in the sludge can be discharged under the action of self gravity, and the sludge can be recycled. Along with the rotation of the filter pressing shell, the fluted disc enables the aperture through which filtrate can pass to be reduced to the minimum under the action of two groups of teeth, particulate matters in sludge are prevented from passing through the first filter plate and the fluted disc, the aperture size is automatically adjusted along with the dehydration process, and the dehydration effect can be improved; the dehydration efficiency and the solid content of a mud cake are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge treatment, in particular to an ultra-high pressure filter press used for sludge dehydration. Background Art

[0002] In modern society, with the acceleration of industrialization and urbanization, a large amount of sludge is generated in various industrial production and urban sewage treatment processes. These sludges contain a lot of water. If they are not effectively dehydrated, they will not only take up a lot of storage space, but also bring a series of environmental and management problems. Filter presses are generally used to treat sludge.

[0003] Most of the existing filter presses used for sludge dehydration place the sludge on top of the filter cloth and squeeze out the water in the sludge by hydraulic pressure. In the early stage of dehydration, the sludge has a high water content and the pore size of the filter is small, so the free water in the sludge is discharged slowly. Squeezing out the free water in the sludge directly by hydraulic pressure may cause the filter cloth to rupture or the filtration to be insufficient, resulting in poor filtration effect. Therefore, an ultra-high pressure filter press for sludge dehydration is proposed. Summary of the invention

[0004] In order to solve the problem proposed in the above background technology that most of the sludge is placed on the filter cloth and the water in the sludge is squeezed out by hydraulic means, and in the early stage of dehydration, the sludge has a high water content and the pore size of the filter is small, the free water in the sludge is discharged slowly, and directly squeezing out the free water in the sludge by hydraulic means may cause the filter cloth to rupture or the filtration to be insufficient, resulting in poor filtration effect, the present invention provides an ultra-high pressure filter press for sludge dehydration.

[0005] To achieve the above object, the present invention provides the following technical solution: an ultra-high pressure filter press for sludge dehydration, comprising a filtering mechanism, a cleaning mechanism is arranged inside the filtering mechanism, the filtering mechanism is arranged inside the filter pressing mechanism, and the filter pressing mechanism is arranged inside the main body mechanism; The filter mechanism includes a filter frame, a groove is provided on the side of the filter frame, a first filter plate is fixedly connected to the top of the filter frame, a plurality of first filter holes are evenly provided on the first filter plate, a first slide groove is provided inside the filter frame, a toothed disc is rotatably connected inside the first slide groove, a protrusion is fixedly connected to the top of the toothed disc, a vent is provided on the side of the filter frame away from the groove, two blocks are rotatably connected inside the first slide groove, the blocks are elastically connected to the inner wall of the first slide groove through a spring, and a fixing hole is provided on the side of the filter frame close to the vent.

[0006] Preferably, the fixing hole is located above the vent hole, the first slide groove is located between the fixing hole and the groove, a plurality of first filter holes are evenly arranged on the toothed disc, the toothed disc is rotatably connected to the bottom of the first filter plate through a protrusion, the clamping block is located on the side of the first slide groove away from the groove, the shape of the clamping block is "L"-shaped, and the side of the clamping block away from the spring is clamped with the side of the toothed disc.

[0007] Preferably, the cleaning mechanism includes a second filter plate, an air inlet hole is provided on the second filter plate, a cavity is provided inside the second filter plate, a plurality of second filter holes are evenly provided on the top of the second filter plate, the inner wall of the second filter hole is connected to the cavity through the cleaning hole, a rotating plate is provided below the second filter plate, a plurality of third filter holes are evenly provided on the rotating plate, and a first motor is provided on the side of the rotating plate.

[0008] Preferably, the cleaning hole is slanted downward on one side close to the second filter hole, the air inlet hole is communicated with the cavity, the side of the rotating plate is rotatably connected to the first motor through a rotating shaft, the shape of the second filter hole is conical, and the size of the third filter hole is adapted to the smaller size of the second filter hole cross-section.

[0009] Preferably, the size of the third filter hole is smaller than that of the first filter hole, the larger cross-sectional size of the second filter hole matches that of the first filter hole, the second filter plate is fixedly connected to the bottom of the filter frame, and the air inlet and the air vent are connected.

[0010] Preferably, the filter press mechanism includes a second motor, the bottom of the second motor is rotatably connected to a gear, a filter press shell is arranged on the side of the gear, a plurality of teeth are fixedly connected to the side of the filter press shell, four filter press chambers are evenly arranged on the top of the filter press shell, a rotating drum is rotatably connected to the center of the filter press shell, the bottom of the filter press shell is rotatably connected to the top of the main shell, a plurality of filter screens are arranged between the rotating drum and the main shell, four pressurizers are fixedly connected to the side of the main shell, air outlet holes are arranged on the side of the four pressurizers close to each other, and four second slide grooves are evenly arranged on the side of the filter press shell.

[0011] Preferably, four groups of teeth are fixedly connected to the side of the rotating drum, and the four groups of teeth are staggered with the four second slide grooves. The side of the filter press housing is meshed with gears through the teeth. The four groups of teeth are located above the filter screen, and the air outlet is located above the main housing. The four pressurizers are respectively located on one side of the four groups of teeth close to the filter press housing.

[0012] Preferably, the size of the second slide groove is matched with the size of the filter rack, the filter rack is slidably connected to the second slide groove, a first slide groove is provided inside the filter press shell, four groups of teeth on the rotating drum are slidably connected to the first slide groove, the rotating drum is located between four filter racks, the first slide groove inside the filter rack is communicated with the first slide groove inside the filter press shell, the first motor is fixedly connected to the side of the filter press shell, the second filter plate is rotatably connected to the inner wall of the filter press shell, and the teeth on the rotating drum are meshed with the toothed disc.

[0013] Preferably, the main structure includes a support plate, the top of the support plate is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a hydraulic cylinder, the bottom of the hydraulic cylinder is slidably connected to a pressure plate, two spreaders are arranged above the filter press shell, the bottom of the support plate is fixedly connected to two cylinders, the side of the cylinder close to the filter press shell is slidably connected to a magnetic telescopic rod, and two conveyor belts are arranged on the side of the main shell.

[0014] Preferably, the pressure plate is located below the connecting plate, the conveyor belt is located below the supporting plate, the two material spreaders and the two connecting plates are respectively located on the side of the four filter press chambers away from each other, the size of the pressure plate is adapted to the size of the filter press chamber, the end of the magnetic telescopic rod away from the cylinder is aligned with the fixing hole, the bottom of the second motor is fixedly connected to the top of the supporting plate, and the gear is rotatably connected to the bottom of the supporting plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention facilitates the adjustment of the aperture size through which the filtrate can pass by arranging the coordination of structures such as the toothed disc and the teeth. In the initial stage of dehydration, when the sludge has a high water content, the aperture size through which the filtrate can pass is the size of the first filter hole. At this time, the porosity is relatively large, and the free water in the sludge will be discharged under the action of its own gravity, so as to quickly drain the water. As the filter press housing rotates, the toothed disc will reduce the aperture through which the filtrate can pass to the minimum under the action of the two groups of teeth, so as to avoid the situation where the particles in the sludge pass through the first filter plate and the toothed disc. The aperture size is automatically adjusted as the dehydration progresses, so as to improve the dehydration effect, the dehydration efficiency and the solid content of the mud cake. The present invention facilitates the cleaning of the inside of the second filter hole and the first filter hole by arranging the coordination of structures such as the air inlet hole and the cleaning hole. The high-pressure gas is injected into the inside of the second filter hole through the air outlet hole by the pressurizer to impact the particles inside the second filter hole, so that these particles are flushed back from the inside of the second filter hole and the first filter hole to the inside of the filter press chamber under the action of the high-pressure gas. In the process of rotation of the filter press shell, the inside of the filter hole will be impacted by the high-pressure gas twice, so the inside of the first filter hole can be cleaned, and the toothed disc can be ensured to rotate smoothly, avoiding the particles in the sludge from blocking the rotation of the toothed disc and affecting the misalignment between the first filter hole on the first filter plate and the first filter hole on the toothed disc, and reducing the wear of components, extending the service life of the device, and preventing the occurrence of local blockage affecting the dehydration speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a bottom view structural diagram of the main mechanism of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the filter press mechanism of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 A schematic diagram of the structural relationship between the filter press housing and the second filter plate of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the filtering mechanism of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 It is a schematic diagram of the structure of the filter press mechanism of the present invention from a top view; Fig. 9 It is a schematic diagram of the explosion structure of the filtering mechanism of the present invention.

[0017] In the figure: 1. Filter mechanism; 101. Filter frame; 102. Groove; 103. First filter plate; 104. First filter hole; 105. First slideway; 106. Toothed plate; 107. Bump; 108. Air vent; 109. Block; 110. Spring; 111. Fixing hole; 2. Cleaning mechanism; 201. Second filter plate; 202. Air inlet; 203. Cavity; 204. Cleaning hole; 205. Second filter hole; 206. Rotating plate; 207. Third filter hole; 208. First electric machine; 3, filter press mechanism; 301, second motor; 302, gear; 303, filter press housing; 304, teeth; 305, filter press chamber; 306, drum; 307, main housing; 308, filter screen; 309, pressurizer; 310, air outlet; 311, second slide; 4, main mechanism; 401, support plate; 402, connecting plate; 403, hydraulic cylinder; 404, pressing plate; 405, spreader; 406, cylinder; 407, magnetic telescopic rod; 408, conveyor belt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 9 As shown, the present invention provides an ultra-high pressure filter press for sludge dehydration, comprising a filter mechanism 1, a cleaning mechanism 2 is arranged inside the filter mechanism 1, the filter mechanism 1 is arranged inside a filter press mechanism 3, and the filter press mechanism 3 is arranged inside a main body mechanism 4; The filtering mechanism 1 includes a filter frame 101, a groove 102 is provided on the side of the filter frame 101, a first filter plate 103 is fixedly connected to the top of the filter frame 101, a plurality of first filter holes 104 are evenly provided on the first filter plate 103, a first slide groove 105 is provided inside the filter frame 101, a toothed disc 106 is rotatably connected inside the first slide groove 105, a protrusion 107 is fixedly connected to the top of the toothed disc 106, a vent hole 108 is provided on the side of the filter frame 101 away from the groove 102, two clamping blocks 109 are rotatably connected inside the first slide groove 105, the clamping block 109 is elastically connected to the inner wall of the first slide groove 105 through a spring 110, and a fixing hole 111 is provided on the side of the filter frame 101 close to the vent hole 108.

[0020] The fixing hole 111 is located above the vent hole 108, the first slide groove 105 is located between the fixing hole 111 and the groove 102, a plurality of first filter holes 104 are evenly arranged on the toothed disc 106, the toothed disc 106 is rotatably connected to the bottom of the first filter plate 103 through the protrusion 107, the clamping block 109 is located on the side of the first slide groove 105 away from the groove 102, the shape of the clamping block 109 is "L"-shaped, and the side of the clamping block 109 away from the spring 110 is clamped with the side of the toothed disc 106.

[0021] The filter press mechanism 3 includes a second motor 301, the bottom of the second motor 301 is rotatably connected to a gear 302, a filter press housing 303 is provided on the side of the gear 302, a plurality of teeth 304 are fixedly connected to the side of the filter press housing 303, four filter press chambers 305 are evenly opened on the top of the filter press housing 303, a rotating drum 306 is rotatably connected to the center of the filter press housing 303, the bottom of the filter press housing 303 is rotatably connected to the top of the main housing 307, a plurality of filter screens 308 are provided between the rotating drum 306 and the main housing 307, and four filter press chambers 305 are fixedly connected to the side of the main housing 307. The filter press shell 303 is provided with four pressurizers 309, and an air outlet 310 is provided on one side where the four pressurizers 309 are close to each other. Four second slide grooves 311 are evenly provided on the side of the filter press shell 303. Four groups of teeth 304 are fixedly connected to the side of the rotating drum 306. The four groups of teeth 304 and the four second slide grooves 311 are staggered. The side of the filter press shell 303 is meshed with the gear 302 through the teeth 304. The four groups of teeth 304 are located above the filter screen 308. The air outlet 310 is located above the main shell 307. The four pressurizers 309 are respectively located on one side of the four groups of teeth 304 close to the filter press shell 303.

[0022] The above scheme is adopted: by setting the coordination of structures such as the toothed disc 106 and the teeth 304, it is convenient to adjust the aperture size through which the filtrate can pass. In the early stage of dehydration, when the sludge has a high water content and fine particles, the aperture size through which the filtrate can pass is the size of the first filter hole 104. At this time, the porosity is relatively large. The free water in the sludge will pass through the first filter hole 104, the second filter hole 205 and the third filter hole 207 under the action of its own gravity, and then flow to the inside of the collection device under the main shell 307 along with the filtration of several layers of filter screens 308 for rapid drainage. As the filter press shell 303 rotates, the free water in the sludge is gradually discharged under the action of its own gravity, and the sludge gradually thickens. When the filter press shell 303 rotates 45°, the toothed disc 106 will be driven by the rotation of the filter press shell 303 to rotate with the drum 30 6, and then the filter press housing 303 continues to rotate, which will cause the toothed disc 106 to rotate along the clamping block 109 toward the clamping position through the teeth 304 on the rotating drum 306, driving the first filter hole 104 on the toothed disc 106 and the first filter hole 104 on the first filter plate 103 to be misaligned, so that the pore size through which the filtered water can pass is reduced, and when the filter press housing 303 rotates 180°, the free water in the sludge is basically discharged from the inside of the filter press housing 303, and the sludge will become the thickest. Under the action of the two groups of teeth 304, the toothed disc 106 will reduce the pore size through which the filtrate can pass to the minimum, thereby preventing the particles in the sludge from passing through the first filter plate 103 and the toothed disc 106. The pore size is automatically adjusted with the dehydration process, which can improve the dehydration effect, and improve the dehydration efficiency and the solid content of the mud cake.

[0023] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Fig. 9 As shown, the cleaning mechanism 2 includes a second filter plate 201, an air inlet hole 202 is opened on the second filter plate 201, a cavity 203 is opened inside the second filter plate 201, a plurality of second filter holes 205 are evenly opened on the top of the second filter plate 201, the inner wall of the second filter hole 205 is connected with the cavity 203 through the cleaning hole 204, a rotating plate 206 is arranged below the second filter plate 201, a plurality of third filter holes 207 are evenly opened on the rotating plate 206, and a first motor 208 is arranged on the side of the rotating plate 206.

[0024] The cleaning hole 204 is slanted downward on one side close to the second filter hole 205, the air inlet 202 is communicated with the cavity 203, the side of the rotating plate 206 is rotatably connected to the first motor 208 through a rotating shaft, the shape of the second filter hole 205 is conical, the size of the third filter hole 207 is adapted to the smaller size of the cross-section of the second filter hole 205, the size of the third filter hole 207 is smaller than the size of the first filter hole 104, the larger size of the cross-section of the second filter hole 205 is adapted to the size of the first filter hole 104, the second filter plate 201 is fixedly connected to the bottom of the filter frame 101, and the air inlet 202 is communicated with the air vent 108.

[0025] The size of the second slide groove 311 is adapted to the size of the filter frame 101, the filter frame 101 is slidingly connected to the second slide groove 311, a first slide groove 105 is provided inside the filter press shell 303, four groups of teeth 304 on the drum 306 are slidingly connected to the first slide groove 105, the drum 306 is located between the four filter frames 101, the first slide groove 105 inside the filter frame 101 is communicated with the first slide groove 105 inside the filter press shell 303, the first motor 208 is fixedly connected to the side of the filter press shell 303, the second filter plate 201 is rotatably connected to the inner wall of the filter press shell 303, the teeth 304 on the drum 306 are meshed with the toothed disc 106, and the friction between the inner wall of the second slide groove 311 and the surface of the filter frame 101 is relatively large.

[0026] The main mechanism 4 includes a support plate 401, a connecting plate 402 is fixedly connected to the top of the support plate 401, a hydraulic cylinder 403 is fixedly connected to the top of the connecting plate 402, a pressing plate 404 is slidably connected to the bottom of the hydraulic cylinder 403, two spreaders 405 are arranged above the filter press housing 303, two cylinders 406 are fixedly connected to the bottom of the support plate 401, a magnetic telescopic rod 407 is slidably connected to the side of the cylinder 406 close to the filter press housing 303, and two conveyor belts 408 are arranged on the side of the main housing 307. The pressing plate 404 is located below the connecting plate 402, the conveyor belt 408 is located below the supporting plate 401, the two spreaders 405 and the two connecting plates 402 are respectively located on the side away from each other of the four filter press chambers 305, the size of the pressing plate 404 is adapted to the size of the filter press chambers 305, the end of the magnetic telescopic rod 407 away from the cylinder 406 is aligned with the fixing hole 111, the bottom of the second motor 301 is fixedly connected to the top of the supporting plate 401, and the gear 302 is rotatably connected to the bottom of the supporting plate 401.

[0027] The above scheme is adopted: by setting the cooperation of the structures such as the air inlet 202 and the cleaning hole 204, it is convenient to clean the inside of the second filter hole 205 and the first filter hole 104, and the high-pressure gas is injected into the vent hole 108 through the air outlet 310 by the pressurizer 309, and then the high-pressure gas enters the cavity 203 through the air inlet 202 and is injected into the second filter hole 205 through the cleaning hole 204, so as to impact the particles inside the second filter hole 205, so that the particles are discharged from the second filter hole 205 and the first filter hole 104 under the action of the high-pressure gas. 4 is flushed back to the inside of the filter press chamber 305, and during the rotation of the filter press housing 303, the inside of the filter hole will be impacted by the high-pressure gas twice, which can clean the inside of the first filter hole 104, ensure that the toothed disc 106 can rotate smoothly, avoid the particles in the sludge blocking the rotation of the toothed disc 106 and the misalignment between the first filter hole 104 on the first filter plate 103 and the first filter hole 104 on the toothed disc 106, reduce the wear of parts, extend the service life of the device, and prevent the occurrence of local blockage affecting the dehydration speed.

[0028] The working principle and use process of the present invention are as follows: first, the pre-treated sludge is transported to the inside of the filter press chamber 305 through two spreaders 405 respectively, and then the second motor 301 is started to rotate the gear 302. The rotation of the gear 302 will drive the filter press housing 303 to rotate on the main housing 307 through the side teeth 304 of the filter press housing 303. In this process, the free water in the sludge will be discharged downward through the first filter hole 104 on the first filter plate 103 under the action of its own gravity. At this time, the free water can be discharged downward through the first filter hole 104 with a larger size to achieve the effect of rapid drainage. After this part of the free water passes through the first filter hole 104, the second filter hole 205 and the third filter hole 207 in turn, it flows to the inside of the collection device below the main housing 307 along with the filtration of several layers of filter screens 308; When the filter press housing 303 rotates 45 degrees, a part of the free water in the sludge is discharged under the action of its own gravity, and the filter press housing 303 will drive the toothed disc 106 inside the filter frame 101 to move to a position meshing with the teeth 304 on the drum 306, and the vent 108 on the filter frame 101 is connected to the air outlet 310 on the pressurizer 309 corresponding to the group of teeth 304. At this time, the pressurizer 309 injects high-pressure gas into the vent 108 through the air outlet 310, and then the high-pressure gas enters the cavity 203 through the air inlet 202 and is respectively injected into the second filter hole 205 through the cleaning hole 204, impacting the particles inside the second filter hole 205, so that some of the particles are discharged from the second filter hole 205 and the first filter hole 205 under the action of the high-pressure gas. The inside of the hole 104 is flushed back into the inside of the filter press chamber 305, and then the filter press housing 303 continues to rotate, and the teeth 304 on the drum 306 will also cause the toothed disc 106 to rotate along the clamping block 109 in the direction close to the clamping position. The rotation of the toothed disc 106 will cause the first filter hole 104 on the toothed disc 106 and the first filter hole 104 on the first filter plate 103 to be misaligned, so that the aperture through which the filtered water can pass is reduced, and the clamping block 109 will be squeezed during the rotation of the toothed disc 106 to move the clamping block 109 in the direction away from the toothed disc 106 to squeeze the spring 110 and make the clamping block 109 clamped with the toothed disc 106. When the toothed disc 106 rotates one tooth, the clamping block 109 will be re-clamped with the toothed disc 106 under the action of the elastic force of the spring 110, so as to prevent the toothed disc 106 from rotating in the opposite direction under the pressure of the sludge. When the filter press housing 303 rotates 90°, one of the filter press chambers 305 filled with sludge moves to the bottom of a pressure plate 404, and when the filter press housing 303 rotates 180°, the two filter press chambers 305 filled with sludge will move to the bottom of the two pressure plates 404 respectively. In this process, the free water in the sludge is basically discharged from the inside of the filter press housing 303, and the sludge will become the thickest. After two impacts of high-pressure gas, the particles in the sludge can avoid blocking the rotation of the toothed disc 106 and the misalignment between the first filter hole 104 on the first filter plate 103 and the first filter hole 104 on the toothed disc 106. At the same time, the toothed disc 106 will reduce the aperture size through which the filtrate can pass to the minimum under the action of the two sets of teeth 304. At the same time, the pressure plate 404 is moved downward by the hydraulic cylinder 403 to apply ultra-high pressure to the teeth 304 below it. Under the action of ultra-high pressure, the solid particles in the sludge are continuously squeezed together, and the gaps in the sludge are continuously reduced, so that water molecules are squeezed out from the tiny gaps between the solid particles and discharged downward through the pores. At the same time, due to the strong squeezing effect of the ultra-high pressure, the colloidal structure in the sludge is destroyed, and the water originally wrapped in the colloid is also released and discharged, thereby obtaining a mud cake with a high solid content. After reaching the set maximum pressure and maintaining it for a period of time, the water in the sludge will be further discharged, and the solid content of the mud cake will be further consolidated. By maintaining the pressure, the structure of the mud cake can be ensured to be more compact, the rebound of the water in the mud cake can be reduced, and the stability of the dehydration effect can be improved; After the pressure plate 404 is reset by the hydraulic cylinder 403, the magnetic telescopic rod 407 is moved toward the filter frame 101 by the air cylinder 406, so that the magnetic telescopic rod 407 is engaged with the fixing hole 111, and the magnetic telescopic rod 407 is attracted by the strong magnetic force, and then the magnetic telescopic rod 407 is reset by the air cylinder 406 and the filter frame 101 is pulled out from the second chute 311, and the two first motors 208 corresponding to the second filter plates 201 in the two filter press housings 303 are started, so that the second filter plates 201 are moved to the filter frame 101. 01 rotates upward inside the filter press housing 303 to form an inclined surface, and then the second filter plate 201 is rotated back and forth slightly through the first motor 208, and the mud cake that falls on the second filter plate 201 is vibrated to break it and discharge it from the inside of the second chute 311 along the inclined surface to the conveyor belt 408, and finally transported away. When the two filter press chambers 305 are filtered, the sludge can be transported to the other two filter press chambers 305 synchronously through the two spreaders 405, and the above steps can be repeated, so that the device can perform the filtering work in a seamless cycle.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Ultra-high pressure filter press for sludge dewatering, characterized by: It comprises a filtering mechanism (1), a cleaning mechanism (2) is arranged inside the filtering mechanism (1), the filtering mechanism (1) is arranged inside a filter pressing mechanism (3), and the filter pressing mechanism (3) is arranged inside a main body mechanism (4); The filter mechanism (1) comprises a filter frame (101), a groove (102) is provided on the side of the filter frame (101), a first filter plate (103) is fixedly connected to the top of the filter frame (101), a plurality of first filter holes (104) are evenly provided on the first filter plate (103), a first slide groove (105) is provided inside the filter frame (101), a toothed disc (106) is rotatably connected inside the first slide groove (105), a protrusion (107) is fixedly connected to the top of the toothed disc (106), a vent hole (108) is provided on a side of the filter frame (101) away from the groove (102), two clamping blocks (109) are rotatably connected inside the first slide groove (105), the clamping blocks (109) are elastically connected to the inner wall of the first slide groove (105) via a spring (110), and a fixing hole (111) is provided on a side of the filter frame (101) close to the vent hole (108).

2. The ultra-high pressure filter press for sludge dehydration according to claim 1, characterized in that: The fixing hole (111) is located above the vent hole (108); the first slide groove (105) is located between the fixing hole (111) and the groove (102); a plurality of first filter holes (104) are evenly arranged on the toothed disc (106); the toothed disc (106) is rotatably connected to the bottom of the first filter plate (103) via a protrusion (107); the clamping block (109) is located on a side of the first slide groove (105) away from the groove (102); the shape of the clamping block (109) is "L"-shaped; a side of the clamping block (109) away from the spring (110) is clamped to a side of the toothed disc (106).

3. The ultra-high pressure filter press for sludge dehydration according to claim 1, characterized in that: The cleaning mechanism (2) comprises a second filter plate (201), the second filter plate (201) is provided with an air inlet hole (202), the second filter plate (201) is provided with a cavity (203) inside, a plurality of second filter holes (205) are evenly provided on the top of the second filter plate (201), the inner wall of the second filter hole (205) is communicated with the cavity (203) through a cleaning hole (204), a rotating plate (206) is provided below the second filter plate (201), a plurality of third filter holes (207) are evenly provided on the rotating plate (206), and a first motor (208) is provided on the side of the rotating plate (206).

4. The ultra-high pressure filter press for sludge dehydration according to claim 3, characterized in that: The cleaning hole (204) is slanted downward on one side close to the second filter hole (205); the air inlet hole (202) is communicated with the cavity (203); the side of the rotating plate (206) is rotatably connected to the first motor (208) via a rotating shaft; the second filter hole (205) is conical in shape; and the size of the third filter hole (207) is adapted to the size of the smaller cross section of the second filter hole (205).

5. The ultra-high pressure filter press for sludge dehydration according to claim 3, characterized in that: The size of the third filter hole (207) is smaller than the size of the first filter hole (104); the size of the larger cross section of the second filter hole (205) matches the size of the first filter hole (104); the second filter plate (201) is fixedly connected to the bottom of the filter frame (101); and the air inlet (202) is communicated with the air vent (108).

6. The ultra-high pressure filter press for sludge dehydration according to claim 3, characterized in that: The filter press mechanism (3) comprises a second motor (301), the bottom of the second motor (301) is rotatably connected to a gear (302), a filter press housing (303) is arranged on the side of the gear (302), a plurality of teeth (304) are fixedly connected to the side of the filter press housing (303), four filter press chambers (305) are evenly arranged on the top of the filter press housing (303), a rotating drum (306) is rotatably connected to the center of the filter press housing (303), the bottom of the filter press housing (303) is rotatably connected to the top of a main body housing (307), a plurality of filter screens (308) are arranged between the rotating drum (306) and the main body housing (307), four pressurizers (309) are fixedly connected to the side of the main body housing (307), air outlet holes (310) are arranged on the side of the four pressurizers (309) close to each other, and four second chutes (311) are evenly arranged on the side of the filter press housing (303).

7. The ultra-high pressure filter press for sludge dehydration according to claim 6, characterized in that: Four groups of teeth (304) are fixedly connected to the side of the rotating drum (306); the four groups of teeth (304) and the four second slide grooves (311) are staggered; the side of the filter press housing (303) is meshed with the gear (302) through the teeth (304); the four groups of teeth (304) are located above the filter screen (308); the air outlet (310) is located above the main housing (307); and the four pressurizers (309) are respectively located on one side of the four groups of teeth (304) close to the filter press housing (303).

8. The ultra-high pressure filter press for sludge dehydration according to claim 6, characterized in that: The size of the second slide groove (311) is matched with the size of the filter frame (101); the filter frame (101) and the second slide groove (311) are slidably connected; a first slide groove (105) is provided inside the filter press housing (303); four groups of teeth (304) on the rotary drum (306) are slidably connected to the first slide groove (105); the rotary drum (306) is located between the four filter frames (101); the first slide groove (105) inside the filter frame (101) is communicated with the first slide groove (105) inside the filter press housing (303); the first motor (208) is fixedly connected to the side surface of the filter press housing (303); the second filter plate (201) is rotatably connected to the inner wall of the filter press housing (303); and the teeth (304) on the rotary drum (306) are meshed with the toothed disc (106).

9. The ultra-high pressure filter press for sludge dehydration according to claim 6, characterized in that: The main body mechanism (4) comprises a support plate (401), the top of the support plate (401) is fixedly connected to a connecting plate (402), the top of the connecting plate (402) is fixedly connected to a hydraulic cylinder (403), the bottom of the hydraulic cylinder (403) is slidably connected to a pressing plate (404), two spreaders (405) are arranged above the filter press housing (303), the bottom of the support plate (401) is fixedly connected to two cylinders (406), a magnetic telescopic rod (407) is slidably connected to a side of the cylinder (406) close to the filter press housing (303), and two conveyor belts (408) are arranged on the side of the main body housing (307).

10. The ultra-high pressure filter press for sludge dehydration according to claim 9, characterized in that: The pressing plate (404) is located below the connecting plate (402), the conveyor belt (408) is located below the supporting plate (401), the two spreading devices (405) and the two connecting plates (402) are respectively located on the sides of the four filter press chambers (305) that are away from each other, the size of the pressing plate (404) is adapted to the size of the filter press chambers (305), one end of the magnetic telescopic rod (407) away from the cylinder (406) is aligned with the fixing hole (111), the bottom of the second motor (301) is fixedly connected to the top of the supporting plate (401), and the gear (302) is rotatably connected to the bottom of the supporting plate (401).

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