Resource treatment method and system for endogenous pollution of lake sediment

Abstract

The invention discloses a resource treatment method and system for endogenous pollution of lake bottom mud, and belongs to the technical field of bottom mud treatment. Comprising a cutter suction device, a curing device connected with the cutter suction device, and a filter press communicated with the curing device, the lake sediment is subjected to resource treatment through the cutter suction device, the curing device and the filter press; the filter press is provided with an operating mechanism, and the operating mechanism acts on the filter plate as required; and the operating mechanism has at least two working modes: a filter plate moving mode and a filter plate replacing mode. Different from a plate pulling trolley in the prior art, the plate pulling trolley can simultaneously push at least one filter plate to achieve efficient movement of the filter plate. Meanwhile, the filter plate can be vertically lifted, manual carrying or drive-by-wire carrying in the prior art is replaced, and the maintenance efficiency of the filter plate is improved.

Description

Technical Field

[0001] The technical field of sediment treatment of the present invention, specifically, relates to a method and system for resource-based treatment of endogenous pollution in lake sediment. Background Art

[0002] Lake sediment is the internal pollution source of lake eutrophication nutrients. Through the treatment of filter press, the pollutant content in the sediment can be significantly reduced, reducing its secondary pollution to the lake water body. The dehydrated sediment can be used in the ecological restoration project of the lake, such as covering the lake sediment, building ecological floating islands, etc., which helps to restore the ecological balance of the lake.

[0003] Therefore, filter press is irreplaceable in the resource management system of lake sediment endogenous pollution. It can not only dehydrate and reduce sediment efficiently, but also promote the resource utilization of sediment, protect the ecological environment of lakes, and achieve a win-win situation of economic and ecological benefits.

[0004] The filter plate is an important component in the filter press. On the one hand, it is used to support the filter cloth. On the other hand, it is used to withstand the pressure from the hydraulic system or other pressure sources to ensure that the filter cloth can fit tightly on the filter plate to prevent leakage of the filtered liquid. Therefore, the maintenance of the filter plate is particularly important.

[0005] The replacement and maintenance of filter plates usually requires multiple steps such as removing the old filter plate, cleaning the filter plate seat, and installing a new filter plate. The operation process is relatively complicated and time-consuming. Considering the weight of the filter plate itself, a wire-controlled robot is generally used to lift the filter plate and allow workers to assist in lifting and transferring the filter plate to ensure that the replacement process goes smoothly and avoid damage to the equipment. If the operation is improper or there are quality problems with the filter plate itself, the filter plate seat or other related parts may be damaged, increasing maintenance costs and downtime.

[0006] Therefore, it is necessary to design a filter press that is not prone to damage to the filter plate and reduces human intervention, so as to be suitable for the resource-based treatment of endogenous pollution in lake sediments. Summary of the invention

[0007] In view of the problems in the related technology, the present invention proposes a method and system for resource-based treatment of endogenous pollution in lake sediments to overcome the above-mentioned technical problems existing in the existing related technology.

[0008] To this end, the specific technical scheme adopted by the present invention is as follows: a system for resource-based treatment of endogenous pollution in lake sediment, comprising: a twisting suction device, a solidification device connected to the twisting suction device, and a filter press connected to the solidification device; the lake sediment is treated as a resource through the twisting suction device, the solidification device and the filter press; the filter press is characterized in that the filter press comprises: A frame having a sludge input end; a plurality of filter plates are slidably arranged in parallel on the frame; A sliding mechanism is arranged on both sides of the frame along the length direction; A pressurizing system, which is arranged on the frame and acts on the plurality of filter plates; Wherein, the sliding mechanism is provided with an operating mechanism, and the operating mechanism acts on the filter plate according to demand; the operating mechanism has at least two working modes: a filter plate moving mode and a filter plate replacing mode.

[0009] In a further embodiment, the filter plate at least comprises: a filter plate frame, a mesh plate fixed in the filter plate frame, connecting ears symmetrically arranged on both sides of the filter plate frame, and a filter head connected to the mesh plate; the filter head is correspondingly located below the connecting ears; The connecting ear comprises: a connecting frame fixed on the filter plate frame, and an operating cavity opened on the connecting frame; the operating cavity has a predetermined size.

[0010] In a further embodiment, the operating mechanism comprises: A mobile main frame is transmission-connected to the sliding mechanism; a lifting assembly is provided on the mobile main frame; Two sets of pull plate assemblies are symmetrically installed at the bottom of the lifting assembly; The filter plate moving mode is implemented as follows: under the action of the lifting assembly, the pull plate assembly is located at the same horizontal plane as the connecting ear of the designated filter plate frame; the pull plate assembly acts on the connecting ear, and the sliding mechanism controls the pull plate assembly and the filter plate to move horizontally.

[0011] In a further embodiment, the operating mechanism further comprises: A lifting platform, driven on the top of the lifting assembly; the lifting platform has vertical freedom; At least two sets of directional wheels are installed in parallel on the lower surface of the lifting platform; The filter plate replacement mode is implemented as follows: under the action of the lifting assembly, the plate pulling assembly is located at the same horizontal plane as the connecting ear of the specified filter plate frame; the plate pulling assembly acts on the connecting ear, and the directional wheel acts on the filter plate frame; after the lifting assembly acts on the plate pulling assembly and the filter plate to move them upward to the specified height, the sliding mechanism controls the plate pulling assembly and the filter plate to move horizontally.

[0012] In a further embodiment, the pull plate assembly comprises: The housing is fixed on the lifting assembly at a predetermined tilt angle; the bottom of the housing is provided with an open jaw structure, and a driving cylinder is installed on the top; a push rod is transmission-connected to the output shaft of the driving cylinder; the push rod is partially located in the housing, and a first compression spring is provided on one side of the push rod; A cam is rotatably installed in the housing and is disposed adjacent to the jaw structure; the cam comprises: a rotating body, a mounting groove is disposed at a designated position of the rotating body; the mounting groove is configured to connect the first compression spring; The first protrusion and the second protrusion extend radially from the inside to the outside with a predetermined thickness; a thumb groove is formed between the first protrusion and the second protrusion, and the thumb groove and the mounting groove are arranged opposite to each other; a groove of a predetermined depth is formed between the second protrusion and the rotating body, and the groove is located between the thumb groove and the mounting groove.

[0013] In a further embodiment, the rolling surface of the directional wheel is recessed inward to form an directional groove, and the directional wheel is installed as follows: the rotation axis of the directional wheel is defined as a reference axis, and the reference axis is parallel to the moving direction of the sliding mechanism; The cross-sectional width of the directional groove tends to gradually decrease from the outside to the inside.

[0014] In a further embodiment, the directional wheel is mounted on the lifting platform via an elastic member, and the elastic member comprises: A mounting block, fixedly mounted on the lifting platform; a connecting groove is provided at the bottom of the mounting block; A connecting rod, one end of which is rotatably mounted in the connecting slot body, and the other end of which is configured to mount the directional wheel; The second compression spring has two ends connected between the connecting slot body and the connecting rod respectively.

[0015] In a further embodiment, a guide groove of a predetermined length is provided on a side surface of the shell; a guide block is provided on one side surface of the push rod; and the guide block is slidably located in the guide groove.

[0016] The method for resource-based treatment of endogenous pollution in lake sediment based on the above-mentioned system for resource-based treatment of endogenous pollution in lake sediment comprises the following steps: The lakes are divided into i regions; i The waste biomass and surface soil in the reservoir are regularly sampled and analyzed to obtain the sediment pollution situation, and a suitable solidifying agent is prepared according to the sediment pollution situation to obtain solidified sludge; the solidified sludge is processed by a filter press to obtain a sludge cake, which will be transported to a designated place for resource recycling according to demand; The filter press treatment process is as follows: the operating mechanism is in the filter plate moving mode, a plurality of filter plates are in a compressed state, and the pressurizing system performs pressurizing treatment on the plurality of filter plates until the sludge is filtered into a mud cake of expected thickness; then the operating mechanism separates the plurality of filter plates one by one in the filter plate moving mode to obtain the mud cake.

[0017] In a further embodiment, when the filter paper needs to be replaced, the operating mechanism is adjusted to be in the filter plate moving mode to separate the plurality of filter plates one by one according to a predetermined width, so that the operator can replace the filter plates on site; when the filter plate needs to be replaced or the filter plate needs to be maintained separately, the filter plate that needs to be replaced or the filter plate is defined as the target filter plate; the operating mechanism is switched to the filter plate replacement mode, the target filter plate is hoisted in a stable state to a height higher than other filter plates, and then horizontally moved in the air to the boundary to be transferred to the operator for unloading; On the contrary, when the target filter plate needs to be rearranged in the rack, the adjusting operating mechanism is switched to the filter plate moving mode in advance to make a predetermined space for the filter plate on the rack; then the operating mechanism is switched to the filter plate replacement mode, and the target filter plate is transferred from the boundary to above the predetermined space in a stable state at high altitude, and then landed in the predetermined space and placed on the rack.

[0018] Beneficial effects of the invention: In order to better realize the resource management of endogenous pollution of lake sediment, the present invention discloses a lake sediment resource management system suitable for management, and makes the following improvements to the filter press in the lake sediment resource management: Different from the plate pulling trolley of the prior art, the plate pulling trolley of the present invention is arranged above the frame, replacing the current trolley located below the filter plate frame. The plate pulling assembly of the present invention can simultaneously push at least one filter plate to achieve efficient movement of the filter plate.

[0019] In addition, the plate pulling trolley of the present invention can not only push the filter plate, but also vertically lift the filter plate, replacing the manual handling or wire-controlled handling in the prior art, thereby increasing the efficiency of filter plate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the filter press used for resource recovery of endogenous pollution in lake sediments according to Example 1.

[0021] Figure 2 This is a structural diagram of the operating mechanism of Example 1.

[0022] Figure 3 This is the adaptation diagram of the filter plate frame and the directional wheel of Example 1.

[0023] Figure 4 This is a schematic diagram of the interior of the pull plate assembly of Example 1.

[0024] Figure 5 This is a structural diagram of the directional wheel and elastic member of Example 1.

[0025] Figure 6 This is a flow chart of the method for resource-based treatment of endogenous pollution in lake sediments of Example 2.

[0026] Figure 7 This is a working principle diagram of the filter press of Example 2.

[0027] Figures 1 to 5 The labels in the figure are: frame 1, filter plate 2, sliding mechanism 3, operating mechanism 4, filter plate frame 201, mesh plate 202, connecting ear 203, connecting frame 203-a, operating cavity 203-b, mobile main frame 401, lifting frame 402, pull plate assembly 403, lifting platform 404, directional wheel 405, elastic member 406, shell 4031, tiger mouth structure 4032, push rod 4033, first compression spring 4034, cam 4035, rotating body 4035-a, installation groove 4035-b, first protrusion 4035-c, second protrusion 4035-d, tiger mouth groove 4035-e, card slot 4035-f, installation block 4061, connecting groove body 4062, connecting rod 4063, second compression spring 4064. To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and advantages of the present invention.

[0028] Example 1 According to an embodiment of the present invention, a system for resource-based treatment of endogenous pollution in lake sediments is provided, comprising: a suction device, a solidification device connected to the suction device, and a filter press connected to the solidification device; the lake sediments are treated as resources through the suction device, the solidification device and the filter press.

[0029] In fact, every link in the resource management of lake sediment is very important, especially the mud cake treatment. The applicant has found that the working efficiency of the filter press is particularly important after repeated use. In the prior art, the filter plate 2 is generally pushed manually, but this is not suitable for the resource treatment of large projects. Therefore, a plate pulling trolley is used instead. Although it can indeed improve efficiency to a certain extent, in the actual use process, it will be found that the working principle of the plate pulling trolley is the seesaw principle, and the pressure rod and the lifting rod are realized through the different forces at both ends to complete the hook plate. Therefore, this trolley is only suitable for the use of a single filter plate 2, and cannot push multiple pull plates at the same time. Because both ends of the plate pulling trolley are pressed down by the filter plate 2 and cannot be lifted.

[0030] In this technical background, Figure 1 The filter press disclosed in this embodiment includes: a frame 1 with a sludge input end, and a plurality of filter plates 2 arranged in parallel are slidably arranged on the frame 1. The frame 1 is also provided with a pressurizing system to act on the plurality of filter plates 2.

[0031] In order to simultaneously meet the requirements of moving multiple filter plates 2 and stably lifting the filter plates 2, the present embodiment provides sliding mechanisms 3 along the length direction on both sides of the frame 1, and an operating mechanism 4 is configured on the sliding mechanism 3. The operating mechanism 4 acts on the filter plates 2 according to requirements; the operating mechanism 4 has at least two working modes: a filter plate 2 moving mode and a filter plate 2 replacing mode.

[0032] In other words, the filter plate 2 moving mode in this embodiment is to move at least one filter plate 2 horizontally on the frame 1 to meet the needs of removing cakes, changing filter paper, etc. The filter plate 2 replacement mode is to lift the target filter plate 2 vertically and then move it horizontally in the air to the boundary of the frame 1 to transfer it to the operator to meet the needs of later maintenance and replacement of the filter plate 2.

[0033] Therefore, in order to achieve the above functions, the filter plate 2 of this embodiment at least includes: a filter plate 2 frame, a mesh plate 202 fixed in the filter plate 2 frame, connecting ears 203 symmetrically arranged on both sides of the filter plate 2 frame, and a filter head connected to the mesh plate 202; the filter head is correspondingly located below the connecting ear 203. Further, the connecting ear 203 includes: a connecting frame 203-a fixed on the filter plate 2 frame, and an operating cavity 203-b opened on the connecting frame 203-a; the operating cavity 203-b has a predetermined size. The operating cavity 203-b is used to adapt to the pull plate assembly 403 in the operating mechanism 4, and the specific details can be referred to the specific description below.

[0034] Correspondingly, the operating mechanism 4 includes: a mobile main frame 401 which is transmission-connected to the sliding mechanism 3. The sliding mechanism 3 in this embodiment is a gear rack transmission mechanism, which can ensure the required stability during the movement to overcome the weight of the filter plate 2 and the mud cake. The corresponding mobile main frame 401 is a large H-shaped structure, which can be trussed on the frame 1.

[0035] The mobile main frame 401 of this embodiment is provided with a lifting assembly. In order to achieve synchronous lifting of both ends, the lifting assembly at least includes a lifting frame 402, and the lifting frame 402 is connected to the lifting transmission assembly. It is worth mentioning that the lifting transmission assembly of this embodiment can be a gear rack, or a cylinder lifting, etc. The lifting frame 402 can move downward and upward under the action of the lifting transmission assembly.

[0036] Two sets of pull plate assemblies 403 are arranged at the bottom of the lifting frame 402, and the pull plate assemblies 403 can be moved downward on the lifting transmission assembly to a position flush with the connecting ear 203. Therefore, the implementation method of the filter plate 2 movement mode mentioned above is as follows: the pull plate assembly 403 is located at the same horizontal plane as the connecting ear 203 of the designated filter plate 2 frame under the action of the lifting assembly; the pull plate assembly 403 acts on the connecting ear 203, and the sliding mechanism 3 controls the pull plate assembly 403 and the filter plate 2 to move horizontally.

[0037] In other words, when there is no need to act on the filter plate 2, the pull plate assembly 403 is located above the connecting ear 203 and has no connection with the filter plate 2. In a further embodiment, in order to facilitate the replacement or maintenance of the filter plate 2, the operating mechanism 4 of this embodiment also includes: a lifting platform 404 installed on the top of the lifting frame 402, and the lifting platform 404 has vertical freedom. It should be noted that the lifting platform 404 in this embodiment is installed on the lifting frame 402 through cylinder transmission and guide rod guidance to meet the independent vertical movement under certain requirements. Figure 2 As shown, at least two groups of directional wheels 405 are installed in parallel on the lower surface of the lifting platform 404 in this embodiment. In this embodiment, two groups of directional wheels 405 are taken as an example.

[0038] Therefore, the implementation method of the filter plate 2 replacement mode mentioned above is as follows: the plate pull assembly 403 is located at the same horizontal plane as the connecting ear 203 of the specified filter plate 2 frame under the action of the lifting assembly; the plate pull assembly 403 acts on the connecting ear 203, and the directional wheel 405 acts on the filter plate 2 frame; after the lifting assembly acts on the plate pull assembly 403 and the filter plate 2 to move upward to the specified height, the sliding mechanism 3 controls the plate pull assembly 403 and the filter plate 2 to move horizontally. It should be noted that the specified height is at least: the filter plate 2 supported by the plate pull assembly 403 is at a height higher than the height of the top of other filter plate 2 frames on the rack 1 under the action of the lifting action.

[0039] When the operating mechanism 4 is only in the filter plate 2 moving mode, the lifting platform 404 is located at a predetermined height and has no contact with the filter plate 2 frame. When the operating mechanism 4 is in the filter plate 2 replacement mode, considering that the filter plate 2 frame itself has a certain weight and a certain height, if only the clamping relationship between the pull plate assembly 403 and the connecting ear 203 is used, the filter plate 2 frame will tilt after being lifted, and will collide with the adjacent filter plate 2 frame and cause damage. Therefore, in order to ensure the stability of the filter plate 2 frame during the lifting process, the lifting platform 404 drives the directional wheel 405 to move downward relative to the pull plate assembly 403, and acts on the filter plate 2 frame to limit it in multiple dimensions.

[0040] Therefore, the rolling surface of the directional wheel 405 in this embodiment is recessed inward to form an directional groove, and the installation form of the directional wheel 405 is as follows: the rotation axis of the directional wheel 405 is defined as a reference axis, and the reference axis is parallel to the moving direction of the sliding mechanism 3; the cross-sectional width of the directional groove tends to gradually decrease from the outside to the inside.

[0041] In other words, when the lifting platform 404 moves, the directional wheel 405 gradually approaches the filter plate 2 frame, and the top of the filter plate 2 frame gradually enters the directional groove and slowly contacts the inner wall of the directional groove to alleviate the wear caused by direct contact. At the same time, it can also be applied to filter plates 2 frames of different models, such as filter plates 2 frames of different thicknesses.

[0042] Furthermore, a circle of shock-absorbing pads can be wrapped around the inner wall of the directional groove to better cushion the impact between each other.

[0043] At the same time, in order to extend the service life of the directional wheel 405 and increase the applicability of the directional wheel 405 to the filter plate 2 frame, the directional wheel 405 is installed on the lifting platform 404 through an elastic member 406. Figure 5 As shown, the elastic member 406 includes: a mounting block 4061 fixedly mounted on the lifting platform 404, and a connecting groove 4062 is provided at the bottom of the mounting block 4061. The connecting groove 4062 is rotatably connected to one end of a connecting rod 4063, and the other end of the connecting rod 4063 is configured to mount the directional wheel 405. The connecting groove and the connecting rod 4063 are connected by a second compression spring 4064.

[0044] In summary, the elastic member 406 ensures that the directional wheel 405 has a movement difference within a predetermined range, so as to reduce the impact between the directional wheel 405 and the lifting platform 404, and between the directional wheel 405 and the filter plate 2 frame.

[0045] like Figure 4 As shown, the pull plate assembly 403 disclosed in this embodiment includes: a housing 4031 fixed on the lifting assembly at a predetermined tilt angle, the purpose of which is to achieve space avoidance between the housing 4031 itself and the filter plate 2 frame, and to better act on the connecting ear 203. Further, the bottom of the housing 4031 is provided with an open jaw structure 4032, and a driving cylinder is installed on the top; a push rod 4033, which is transmission-connected to the output shaft of the driving cylinder; the push rod 4033 is partially located in the housing 4031, and a first compression spring 4034 is provided on one side of the push rod 4033.

[0046] Correspondingly, a rotatable cam 4035 can be installed inside, and the cam 4035 is arranged adjacent to the jaw structure 4032. Further, as shown in the figure, the cam 4035 includes: a rotating body 4035-a, a mounting groove 4035-b is arranged at a designated position; the mounting groove 4035-b is arranged to connect the first compression spring 4034; a first protrusion 4035-c and a second protrusion 4035-d, extending from the inside to the outside along the radial direction by a predetermined thickness; a jaw groove 4035-e is formed between the first protrusion 4035-c and the second protrusion 4035-d, and the jaw groove 4035-e is arranged opposite to the mounting groove 4035-b; a slot 4035-f of a predetermined depth is formed between the second protrusion 4035-d and the rotating body 4035-a, and the slot 4035-f is located between the jaw groove 4035-e and the mounting groove 4035-b. The curvature of the outer surface of the second protrusion 4035-d is steeper than the curvature of the rotating body 4035-a.

[0047] When there is no need to act on the filter plate 2 frame, the plate pull assembly 403 is located above the connecting ear 203 under the action of the lifting assembly. At this time, the driving cylinder and the first compression spring 4034 are both in a retracted state, so the cam 4035 is not affected by the force of the push rod 4033 but is affected by the first compression spring 4034, and the position where the mounting groove 4035-b on the cam 4035 is located rotates upward until the cam 4035 itself and the push rod 4033 are against each other and stationary, and at this time, the jaw groove 4035-e corresponds to the jaw structure 4032, that is, the jaw structure 4032 is in an open state.

[0048] When it is necessary to act on the connecting ear 203, the lifting assembly controls it to move downward so that the connecting ear 203 is located in the jaw structure 4032 of the pull plate assembly 403. Subsequently, the driving cylinder is pushed out, and because the curvature of the outer surface of the second protrusion 4035-d is steeper than the curvature of the rotating body 4035-a, the cam 4035 rotates counterclockwise until the push rod 4033 is stuck in the installation groove 4035-b, at which time the first protrusion 4035-c passes through the operating cavity 203-b of the connecting ear 203 to seal the jaw structure 4032 to form a blocking cavity, and the top of the connecting ear 203 is located in the blocking cavity to achieve connection.

[0049] On the contrary, the driving cylinder determines that the push rod 4033 retracts linearly, and the effect between the push rod 4033 and the mounting groove 4035-b disappears. Under the action of the first compression spring 4034, the cam 4035 rotates in the opposite direction (clockwise in the figure) to reset, and the jaw structure 4032 is opened. Then, under the action of the lifting assembly, the pull plate assembly 403 rises and the connection relationship with the connecting ear 203 disappears. This is repeated.

[0050] Through the above structure, this embodiment can realize the rapid tightening and disengagement of the filter plate 2 without being affected by the adjacent filter plates 2. When at least one filter plate 2 needs to be pushed at the same time, only the last filter plate 2 needs to be supported and pushed to realize the pushing of all the filter plates 2 located before the filter plate 2.

[0051] Example 2 Based on the lake sediment endogenous pollution resource management system described in Example 1, this embodiment provides a lake sediment endogenous pollution resource management method, such as Figure 6 The following steps are shown: The lake is divided into i regions based on environmental and architectural features; the waste biomass and surface soil in region i are sampled and analyzed regularly to obtain the sediment pollution situation; a suitable solidifying agent is prepared according to the sediment pollution situation to obtain solidified sludge; the solidified sludge is processed by a filter press to obtain a sludge cake, which will be transported to a designated place for resource recycling according to demand; The processing process of the filter press is as follows: the operating mechanism 4 is in the filter plate 2 moving mode, and a plurality of filter plates 2 are in a compressed state, and the pressurizing system pressurizes the plurality of filter plates 2 until the sludge is filtered into a mud cake of expected thickness; then the operating mechanism 4 separates the plurality of filter plates 2 one by one in the filter plate 2 moving mode to obtain a mud cake.

[0052] Combination Figure 7 When the filter paper needs to be replaced, the operating mechanism 4 is adjusted to be in the filter plate 2 moving mode to separate the plurality of filter plates 2 one by one according to the predetermined width, so that the operator can replace the filter plates 2 on site; when the filter plate 2 needs to be replaced or the filter plate 2 needs to be maintained separately, the filter plate 2 that needs to be replaced or the filter plate 2 is defined as the target filter plate 2; the operating mechanism 4 is switched to the filter plate 2 replacement mode, the target filter plate 2 is hoisted in a stable state to a height higher than other filter plates 2, and then moved horizontally in the air to the boundary to be transferred to the operator for unloading; On the contrary, when the target filter plate 2 needs to be rearranged in the rack 1, the adjusting operating mechanism 4 is switched to the filter plate 2 moving mode in advance to make a predetermined space for the filter plate 2 acting on the rack 1; then the operating mechanism 4 is switched to the filter plate 2 replacement mode, and the target filter plate 2 is transferred from the boundary to above the predetermined space in a stable state at high altitude, and then landed in the predetermined space and placed on the rack 1.

[0053] It is worth mentioning that the implementation method of the filter plate 2 movement mode in this embodiment is: under the action of the lifting assembly, the pull plate assembly 403 is located in the same horizontal plane as the connecting ear 203 of the designated filter plate 2 frame; the pull plate assembly 403 acts on the connecting ear 203, and the sliding mechanism 3 controls the pull plate assembly 403 and the filter plate 2 to move horizontally.

[0054] The filter plate 2 replacement mode is implemented as follows: the plate pulling assembly 403 is located at the same horizontal plane as the connecting ear 203 of the designated filter plate 2 frame under the action of the lifting assembly; the plate pulling assembly 403 acts on the connecting ear 203, and the directional wheel 405 acts on the filter plate 2 frame; after the lifting assembly acts on the plate pulling assembly 403 and the filter plate 2 to move them upward to the designated height, the sliding mechanism 3 controls the plate pulling assembly 403 and the filter plate 2 to move horizontally to the boundary of the frame 1 and transfer them to the operator.

[0055] The form of replacing the filter plate 2 and lifting the filter plate 2 disclosed in this embodiment is more stable than the wire-controlled handling in the prior art, and has stronger protection for the filter plate 2; compared with the existing manual handling, it is more efficient and more operable.

Claims

1. Resource management system for endogenous pollution of lake sediment, including: A wringing suction device, a solidification device connected to the wringing suction device, and a filter press connected to the solidification device; The lake sediment is treated as a resource by the suction device, the solidification device and the filter press; the filter press is characterized in that the filter press comprises: A frame having a sludge input end; a plurality of filter plates are slidably arranged in parallel on the frame; A sliding mechanism is arranged on both sides of the frame along the length direction; A pressurizing system, which is arranged on the frame and acts on the plurality of filter plates; Wherein, the sliding mechanism is provided with an operating mechanism, and the operating mechanism acts on the filter plate according to demand; the operating mechanism has at least two working modes: a filter plate moving mode and a filter plate replacing mode.

2. The lake sediment endogenous pollution resource management system according to claim 1 is characterized in that: The filter plate at least comprises: a filter plate frame, a mesh plate fixed in the filter plate frame, connecting ears symmetrically arranged on both sides of the filter plate frame, and a filter head connected to the mesh plate; the filter head is correspondingly located below the connecting ears; The connecting ear comprises: a connecting frame fixed on the filter plate frame, and an operating cavity opened on the connecting frame; the operating cavity has a predetermined size.

3. The lake sediment endogenous pollution resource management system according to claim 1 is characterized in that: The operating mechanism comprises: A mobile main frame is transmission-connected to the sliding mechanism; a lifting assembly is provided on the mobile main frame; Two sets of pull plate assemblies are symmetrically installed at the bottom of the lifting assembly; The filter plate moving mode is implemented as follows: under the action of the lifting assembly, the pull plate assembly is located at the same horizontal plane as the connecting ear of the designated filter plate frame; the pull plate assembly acts on the connecting ear, and the sliding mechanism controls the pull plate assembly and the filter plate to move horizontally.

4. The lake sediment endogenous pollution resource management system according to claim 3 is characterized in that: The operating mechanism also includes: A lifting platform, driven on the top of the lifting assembly; the lifting platform has vertical freedom; At least two sets of directional wheels are installed in parallel on the lower surface of the lifting platform; The filter plate replacement mode is implemented as follows: under the action of the lifting assembly, the plate pulling assembly is located at the same horizontal plane as the connecting ear of the specified filter plate frame; the plate pulling assembly acts on the connecting ear, and the directional wheel acts on the filter plate frame; after the lifting assembly acts on the plate pulling assembly and the filter plate to move them upward to the specified height, the sliding mechanism controls the plate pulling assembly and the filter plate to move horizontally.

5. The lake sediment endogenous pollution resource management system according to claim 3 is characterized in that: The pull plate assembly comprises: The housing is fixed on the lifting assembly at a predetermined tilt angle; the bottom of the housing is provided with an open jaw structure, and a driving cylinder is installed on the top; a push rod is transmission-connected to the output shaft of the driving cylinder; the push rod is partially located in the housing, and a first compression spring is provided on one side of the push rod; A cam is rotatably installed in the housing and is disposed adjacent to the jaw structure; the cam comprises: a rotating body, a mounting groove is disposed at a designated position of the rotating body; the mounting groove is configured to connect the first compression spring; The first protrusion and the second protrusion extend radially from the inside to the outside with a predetermined thickness; a thumb groove is formed between the first protrusion and the second protrusion, and the thumb groove and the mounting groove are arranged oppositely; a groove of a predetermined depth is formed between the second protrusion and the rotating body, and the groove is located between the thumb groove and the mounting groove; The curvature of the outer surface of the second protrusion is steeper than the curvature of the rotating body.

6. The lake sediment endogenous pollution resource management system according to claim 4 is characterized in that: The rolling surface of the directional wheel is recessed inward to form a directional groove. The installation form of the directional wheel is as follows: the rotation axis of the directional wheel is defined as a reference axis, and the reference axis is parallel to the moving direction of the sliding mechanism; The cross-sectional width of the directional groove tends to gradually decrease from the outside to the inside.

7. The lake sediment endogenous pollution resource management system according to claim 4 is characterized in that: The directional wheel is mounted on the lifting platform through an elastic member, and the elastic member includes: A mounting block, fixedly mounted on the lifting platform; a connecting groove is provided at the bottom of the mounting block; A connecting rod, one end of which is rotatably mounted in the connecting slot body, and the other end of which is configured to mount the directional wheel; The second compression spring has two ends connected between the connecting slot body and the connecting rod respectively.

8. The lake sediment endogenous pollution resource management system according to claim 5 is characterized in that: A guide groove of a predetermined length is arranged on the side of the shell; a guide block is arranged on one side of the push rod; and the guide block is slidably located in the guide groove.

9. A method for resource recovery of lake sediment endogenous pollution based on the lake sediment endogenous pollution resource recovery system as described in any one of claims 1 to 8, characterized in that: The following steps are involved: The lakes are divided into i regions; i The waste biomass and surface soil in the reservoir are regularly sampled and analyzed to obtain the sediment pollution situation, and a suitable solidifying agent is prepared according to the sediment pollution situation to obtain solidified sludge; the solidified sludge is processed by a filter press to obtain a sludge cake, which will be transported to a designated place for resource recycling according to demand; The filter press treatment process is as follows: the operating mechanism is in the filter plate moving mode, a plurality of filter plates are in a compressed state, and the pressurizing system performs pressurizing treatment on the plurality of filter plates until the sludge is filtered into a mud cake of expected thickness; then the operating mechanism separates the plurality of filter plates one by one in the filter plate moving mode to obtain the mud cake.

10. The method for resource-based treatment of endogenous pollution in lake sediments according to claim 9, characterized in that: When the filter paper needs to be replaced, the operating mechanism is adjusted to the filter plate moving mode to separate the plurality of filter plates one by one according to the predetermined width, so that the operator can replace the filter plates on site; when the filter plate needs to be replaced or the filter plate needs to be maintained separately, the filter plate that needs to be replaced or the filter plate is defined as the target filter plate; the operating mechanism is switched to the filter plate replacement mode, the target filter plate is hoisted in a stable state to a height higher than other filter plates, and then moved horizontally in the air to the boundary to be transferred to the operator for unloading; On the contrary, when the target filter plate needs to be rearranged in the rack, the adjusting operating mechanism is switched to the filter plate moving mode in advance to make a predetermined space for the filter plate on the rack; then the operating mechanism is switched to the filter plate replacement mode, and the target filter plate is transferred from the boundary to above the predetermined space in a stable state at high altitude, and then landed in the predetermined space and placed on the rack.

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