A sedimentation tank sludge treatment device and treatment method

Abstract

The invention discloses a sedimentation tank sludge treatment device and treatment method, and relates to the technical field of sludge treatment. The sedimentation tank sludge treatment device comprises a plate-frame mold, a pressure component and a pressure plate; wherein the plate-frame mold comprises: a frame, wherein the frame has a partition, wherein the partition divides the frame into two parts: a concave cavity and a mounting cavity; a convex mold, wherein the convex mold is provided with at least two groups, upper and lower, and the two groups of convex molds are located on the side of the mounting cavity away from the concave cavity, and the two groups of convex molds seal the mounting cavity, and when the two groups of plate-frame molds are arranged side by side, the convex mold of one plate-frame mold and the concave cavity of the other group of plate-frame molds form a sludge cavity; the sedimentation tank sludge treatment device and treatment method, by setting a plurality of convex molds, the upper convex mold first squeezes the upper sludge, and then the lower convex mold squeezes the lower sludge, thereby avoiding the water in the lower force position from spreading upward during dehydration, and avoiding the situation where the upper layer of water needs to flow back downward, thereby reducing the water content of the mud cake.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, and in particular to a sedimentation tank sludge treatment device and a treatment method. Background Art

[0002] A sewage sedimentation tank is a place for treating sewage, in which a large amount of sludge can be precipitated. Various dewatering equipments are used in the prior art to dewater the sludge.

[0003] The plate and frame dewatering machine is a highly efficient sludge dewatering equipment. Its working principle is to filter out the water in the sludge through the plate and frame filter, thereby achieving sludge dehydration.

[0004] Compared with other types of sludge dewatering machines, the plate and frame dewatering machine has the following advantages: First, it has high processing efficiency and can quickly filter out the water in the sludge; second, it has excellent filtration effect and can obtain sludge products with higher dryness; third, it has strong adaptability and can process different types of sludge, such as activated sludge, digested sludge, etc.

[0005] The plate and frame dewatering machine in the prior art has a dewatering plate frame with a filter and a plate frame without a filter. The plate frame with a filter is prone to clogging during dewatering. When the plate frame without a filter is dewatering, a hydraulic system is used to provide a driving force to squeeze the sludge on each plate frame. The force applied by the hydraulic system is centered on the plate frame, which can improve the uniformity of force on each position of the mud cake. However, it has been found in practice that it also has defects, that is, during the dewatering process, water diffuses outward along the center of the mud cake, and the force on the periphery of the mud cake is less than that in the middle. Therefore, in the process of water gradually diffusing outward, the water flow will flow downward near the periphery of the mud cake, which results in the water flow near the periphery not directly separating from the sludge, but moving downward before reaching the drainage hole below. This method will increase the moisture content of the dry mud.

[0006] Moreover, the thickness of the mud cake that can be squeezed inside each plate frame in the one-time extrusion method in the prior art is relatively small, because once the thickness of the mud cake is too large, the above-mentioned problem will become more serious. Summary of the invention

[0007] In view of the deficiencies of the prior art, the present invention provides a sedimentation tank sludge treatment device and a treatment method, which solves the problem of increased moisture content of dry sludge in the prior art.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sedimentation tank sludge treatment device, including a plate-frame mold, a pressure component and a pressure plate; wherein the plate-frame mold includes: a frame body, wherein the frame body has a partition, wherein the partition divides the frame body into two parts: a concave cavity and a mounting cavity; a convex mold, wherein the convex mold is provided with at least two groups, an upper and a lower group, and the two groups of convex molds are located on the side of the mounting cavity away from the concave cavity, and the two groups of convex molds close the mounting cavity, and when the two groups of plate-frame molds are arranged side by side, the convex mold of one of the plate-frame molds and the concave cavity of the other group of plate-frame molds form a sludge cavity; wherein The pressure-applying component includes a main force plate, which is located on one side of the mounting cavity close to the concave cavity, and can move along the center line connecting the concave cavity and the mounting cavity; the pressure plate is located between the main force plate and the punch, and the number of the pressure plates is the same as the number of the punches, and the distance between different pressure plates and the relative punches gradually increases from top to bottom. A spring is fixed between the main force plate and the pressure plate, so that the main force plate pushes the pressure plates one by one from top to bottom, so that the pressure plates squeeze the punches one by one from top to bottom, forming a state in which the punch squeezes the sludge in the sludge chamber from top to bottom.

[0009] Furthermore, a drag rod is fixedly provided on one side of the punch close to the pressure plate, and a drag plate is fixedly provided after the drag rod passes through the pressure plate, so that when the main force plate moves toward the side close to the cavity, the pressure plate can drag the relative punch back to its position.

[0010] Furthermore, a protrusion is fixedly provided on one side of the main force application plate close to the spring, and the thickness of the protrusion gradually decreases from top to bottom; a first guide rod is sleeved inside the spring, one end of the first guide rod is fixed on the pressure plate, and the other end of the first guide rod passes through the protrusion and the main force application plate.

[0011] Furthermore, it also includes: a plate frame guide rod, which is arranged on both sides of the plate frame mold, and a plurality of plate frame molds are arranged in series on the plate frame guide rod; a return spring, which is sleeved on the plate frame guide rod, and the return spring is located between the two plate frame molds; a pressure frame guide rod, both sides of the main force plate are provided with edges, and the edges are located outside the plate frame mold, and a plurality of the edges are arranged in series on the pressure frame guide rod; a hydraulic cylinder, which is located at one end after the plurality of plate frame molds are arranged and formed, and the hydraulic cylinder is used to drive each plate frame mold to close and to drive each edge to move; after the plurality of plate frame molds are arranged and formed, both ends thereof are provided with fixed plates, and a plate frame mold away from the hydraulic cylinder is fixed on the relative fixed plates.

[0012] Furthermore, guide grooves are provided on both side walls of the frame, and a sliding portion adapted to the guide grooves is provided in the connection area between the edge and the main force application plate, so that the edge and the main force application plate can slide on the frame.

[0013] Furthermore, a first pressure rod is fixedly provided at one end of the piston rod of the hydraulic cylinder, a second pressure rod is inserted into the end of the first pressure rod away from the hydraulic cylinder, and the other end of the second pressure rod is fixedly connected to a frame body close to the hydraulic cylinder; an additional frame is provided between the first pressure rod and a frame body close to the hydraulic cylinder, and a compensation spring is provided at a position where the second pressure rod is located between a frame body close to the hydraulic cylinder and the first pressure rod.

[0014] Furthermore, it also includes a locking component, which is used to lock the second pressure rod and the first pressure rod when the second pressure rod pushes each plate frame mold to close; locking pins are radially inserted into the upper and lower sides of the first pressure rod, and a groove adapted to the locking pin is opened on the second pressure rod, and a return spring is installed between the end of the locking pin away from the first pressure rod and the first pressure rod, and the first pressure rod has pressure rails on the upper and lower sides, and the pressure rails are in a stationary state relative to the first pressure rod and the second pressure rod, so that when the first pressure rod drives the locking pin to pass through the pressure rails, the pressure rails can press the locking pin into the groove, and the locking pin is disengaged from the pressure rails when each plate frame mold is closed.

[0015] Furthermore, it also includes a feed pipe, which is connected in series with the plate-frame mold along the arrangement direction of the plate-frame mold, and a feed hole is opened in the area of ​​the feed pipe located in the concave cavity.

[0016] On the other hand, the present invention also provides a sedimentation tank sludge treatment and treatment method, comprising the following steps:

[0017] S1, driving the hydraulic cylinder to extend, so that the second pressure rod pushes a plate frame mold close to the hydraulic cylinder, forming a closed state of each plate frame mold, forming a sludge chamber, and then controlling the hydraulic cylinder to stop working;

[0018] S2, injecting the sludge to be dehydrated into the sludge chamber through the feed pipe;

[0019] S3, driving the hydraulic cylinder to extend, so that the first pressing rod pushes an edge portion close to the hydraulic cylinder, and pushes the pressing plates one by one from top to bottom through the edge portion, the main force plate, the spring and the pressing plate, so that the pressing plates push the punches one by one, forming a state in which the punches gradually squeeze the sludge from top to bottom, and the squeezed water is discharged from the drainage hole below;

[0020] S4. Control the hydraulic cylinder to shorten, so that each punch is separated from the mud cake, and each plate and frame mold is separated from each other, so that the mud cake automatically falls off.

[0021] Furthermore, in S1, the pressure rail is always in a state of squeezing the locking pin.

[0022] The present invention has the following beneficial effects:

[0023] The sedimentation tank sludge treatment device and treatment method are provided with a plurality of convex molds, so that the upper convex mold first squeezes the upper sludge, and then the lower convex mold squeezes the lower sludge, so that the entire sludge can be dehydrated at the upper part first and then at the lower part. In this dehydration method, during dehydration, the water squeezed out at the upper part can flow downward to the sludge at the lower part that has not been dehydrated, thereby avoiding the water at the lower stress position from spreading upward during dehydration, and avoiding the situation where the upper water needs to flow back downward, thereby reducing the water content of the mud cake. Compared with the one-time extrusion method in the prior art, the multiple extrusions from top to bottom can extrude thicker sludge, because the water in the thicker sludge can also flow downward quickly without flowing back, so that the device can also increase the amount of sludge treated each time.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall diagram of the present invention;

[0026] Figure 2 It is an assembly diagram of a single plate frame mold and a pressure-applying component of the present invention;

[0027] Figure 3 It is an assembly diagram of the plate frame mold, the pressure component and the feed pipe of the present invention;

[0028] Figure 4 For the present invention Figure 3 Another perspective of the picture;

[0029] Figure 5 is a cutaway view of the frame of the present invention;

[0030] Figure 6 For the present invention Figure 5 The schematic diagram of the main force-applying plate being cut open;

[0031] Figure 7 For the present invention Figure 6 The main view;

[0032] Figure 8 It is a front view of the present invention;

[0033] Fig. 9 It is a schematic diagram of the internal structure of the frame of the present invention;

[0034] Fig.10 It is an assembly diagram of the plate frame mold of the present invention on the plate frame guide rod;

[0035] Fig.11 It is a structural schematic diagram of the plate frame mold of the present invention;

[0036] Fig.12It is a structural schematic diagram of the main force-applying plate and the edge portion of the present invention;

[0037] Fig.13 This is a layout diagram of the pressing plate of the present invention;

[0038] Fig.14 for Fig.13 Exploded diagram of

[0039] Fig.15 It is a structural schematic diagram of the locking component of the present invention;

[0040] Fig.16 It is an assembly diagram of the additional frame and the edge of the present invention;

[0041] Fig.17 It is a front view of the locking component of the present invention;

[0042] Fig.18 for Fig.17 Magnified view of area A.

[0043] In the figure, 100, plate-frame mold; 110, frame; 120, punch; 130, cavity; 140, guide groove; 150, partition; 200, pressure component; 210, edge; 220, main force plate; 230, sliding portion; 240, convex portion; 250, spring; 260, first guide rod; 270, drag rod; 271, drag plate; 300, pressure plate; 400, fixed plate; 500, plate-frame guide rod; 510, return spring; 520, pressure frame guide rod; 600, hydraulic cylinder; 610, first pressure rod; 611, second pressure rod; 620, compensation spring; 630, additional frame; 700, locking component; 710, lock pin; 730, return spring; 740, pressure rail; 800, feed pipe. DETAILED DESCRIPTION

[0044] 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.

[0045] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] According to the following Figure 1-Figure 18The present invention describes a sedimentation tank sludge treatment device and a treatment method provided in an embodiment of the present invention.

[0047] See also Figure 1 As shown, on the one hand, an embodiment of the present invention provides a sedimentation tank sludge treatment device, including a plate-frame mold 100, wherein the plate-frame mold 100 is provided with a plurality of plate-frame molds 100, and the plurality of plate-frame molds 100 are arranged side by side to form Figure 1 Status shown.

[0048] Combination Figure 2 and, Figure 3 and Fig. 9 As shown, a single plate-frame mold 100 includes a frame 110 and a punch 120. The frame 110 has a partition 150, and the partition 150 is preferably integrally formed with the frame 110. The partition 150 divides the frame 110 into two parts: a concave cavity 130 and a mounting cavity. The punch 120 is provided with at least two groups, an upper and a lower group, and the two groups of punches 120 are located on the side of the mounting cavity away from the concave cavity 130, and the two groups of punches 120 close the mounting cavity. When the two groups of plate-frame molds 100 are arranged side by side, the punch 120 of one plate-frame mold 100 and the concave cavity 130 of the other group of plate-frame molds 100 form a sludge cavity, and the sludge cavity is used to accommodate the sludge to be dehydrated. When the punch 120 gradually approaches the concave cavity 130, the sludge to be dehydrated can be squeezed to dehydrate the sludge.

[0049] In this embodiment, three groups of punches 120 are provided, and the three groups of punches 120 are arranged side by side up and down.

[0050] The reason for setting multiple punches 120 is to make the upper punch 120 squeeze the sludge first, and then make the lower punch 120 squeeze the sludge, so that the entire sludge block can be in a state where the upper part is dehydrated first and the lower part is dehydrated. In this dehydration method, during dehydration, the water squeezed out from the upper part can flow downward to the sludge below that has not been dehydrated, and then the sludge below is dehydrated through the lower punch 120, thereby avoiding the water in the lower force position from spreading upward during dehydration, and avoiding the situation where the upper water needs to flow back downward, thereby reducing the water content of the mud cake. Compared with the one-time extrusion method in the prior art, the multiple extrusions from top to bottom can extrude thicker sludge, because the water in the thicker sludge can also flow downward quickly without flowing back, so that the device can also increase the amount of sludge processed each time.

[0051] Specifically, the movement of each punch 120 is controlled in the following manner.

[0052] Combination Figure 4 - Figure 7 , Fig. 9 , Fig.13 and Fig.14As shown, a pressure component 200 is provided, which includes a main force plate 220, which is located on one side of the mounting cavity close to the concave cavity 130, and the main force plate 220 can move along the center line direction of the concave cavity 130 and the mounting cavity, and the pressure plate 300 is located between the main force plate 220 and the punch 120, and the number of the pressure plates 300 is the same as the number of the punch 120, and the distance between different pressure plates 300 and the relative punch 120 gradually increases from top to bottom, and a spring 250 is fixed between the main force plate 220 and the pressure plate 300, so that the main force plate 220 can push the pressure plate 300 through the spring 250, so that the pressure plate 300 squeezes the punch 120 one by one from top to bottom, forming a state in which the upper punch 120 is squeezed first and the lower punch 120 is squeezed later.

[0053] like Figure 7 When the main force plate 220 is working, the main force plate 220 is first moved to the left, so that the main force plate 220 can drive all the pressure plates 300 to move to the left through all the springs 250 at the same time. In this process, the top pressure plate 300 can first push the top punch 120 to squeeze the sludge above the cavity 130, and the water squeezed out of the sludge above flows downward. As the pressure plate 300 moves, it can drive the middle punch 120 to move to the left. At this time, the middle punch 120 can squeeze the sludge in the middle. As the pressure plate 300 continues to move to the left, all the sludge is squeezed and all the water is discharged from the bottom (a drainage hole is opened at the bottom of the cavity 130).

[0054] Preferably, limiting slide blocks are provided on both sides of the punch 120, and limiting grooves adapted to the limiting slide blocks are provided on the inner walls on both sides of the frame 110, so as to maintain the height of the punch 120 and ensure that the punch 120 can move horizontally.

[0055] Preferably, the length of the spring 250 decreases gradually from top to bottom, so that the spring 250 of the upper layer can have a larger deformation to compensate for the larger displacement of the pressure plate 300 of the lower layer.

[0056] In addition, this arrangement has another advantage, namely, the deformation of the upper spring 250 is greater than that of the lower spring 250, so that the squeezing force of the upper punch 120 on the sludge is greater than that of the lower punch 120, thereby further preventing water from overflowing from the lower layer, namely, the squeezed water from the lower layer can only flow vertically downward, preventing the water in the lower force-bearing position from spreading upward during dehydration, and preventing the water in the upper layer from needing to flow back downward, thereby reducing the water content of the mud cake. However, it is worth noting that the squeezing force of the lowest spring 250 on the punch 120 can reach the required squeezing force for dehydration.

[0057] like Figure 7As shown, in order to enable each punch 120 to be reset to its original position after the mud pressing is completed, a drag rod 270 is fixedly provided on the side of the punch 120 close to the pressure plate 300, and a drag plate 271 is fixedly provided after the drag rod 270 passes through the pressure plate 300. Therefore, after the mud pressing is completed, when the main force plate 220 moves toward the side close to the concave cavity 130, the pressure plate 300 can drag the relative punch 120 back to its original position to facilitate the next mud pressing.

[0058] Preferably, a drag hole is opened on the pressure plate 300 at a position opposite to the drag rod 270, and the diameter of the drag hole should be larger than the diameter of the drag rod 270 and smaller than the diameter of the drag plate 271, thereby ensuring that the pressure plate 300 does not contact the drag rod 270 when moving to the left, and the pressure plate 300 can drag the entire punch 120 through the drag plate 271 when moving to the right.

[0059] Continue to refer to Figure 7 In order to ensure that the punch 120 can move horizontally without position deviation when the pressure plate 300 pushes the punch 120, a convex portion 240 is fixedly provided on the side of the main force plate 220 close to the spring 250. The thickness of the convex portion 240 gradually decreases from top to bottom. A first guide rod 260 is sleeved inside the spring 250. One end of the first guide rod 260 is fixedly provided on the pressure plate 300, and the other end of the first guide rod 260 passes through the convex portion 240 and the main force plate 220. When the main force plate 220 moves to the left and pushes the pressure plate 300 to move to the left, the length of the spring 250 remains unchanged, and the relative position of the first guide rod 260 and the main force plate 220 remains unchanged. Until the pressure plate 300 pushes the punch 120, as the pressure plate 300 continues to move to the left, the spring 250 shortens, and the main force plate 220 moves relatively to the left on the first guide rod 260. The first guide rod 260 can guide the spring 250 to prevent the punch 120 from moving up and down.

[0060] like Figure 1 , Figure 8-Figure 10 As shown, the sedimentation tank sludge treatment device provided by the embodiment of the present invention further includes a plate frame guide rod 500 , a return spring 510 , a pressure frame guide rod 520 and a hydraulic cylinder 600 .

[0061] The plate frame guide rods 500 are arranged on both sides of the plate frame mold 100, and multiple plate frame molds 100 are arranged in series on the plate frame guide rods 500. The return spring 510 is sleeved on the plate frame guide rods 500, and the return spring 510 is located between the two plate frame molds 100, so that when the edge plate frame mold 100 is subjected to pressure, it can move on the plate frame guide rods 500 to close each plate frame mold 100; both sides of the main force application plate 220 are provided with edge portions 210 (the main force application plate 220 and the edge portion 210 form a U-shaped plate, such as Fig.12), and the edge 210 is located outside the plate frame mold 100, and multiple edge portions 210 are serially arranged on the pressure frame guide rod 520, so that each pressure component 200 can move on the pressure frame guide rod 520.

[0062] The hydraulic cylinder 600 is located at one end after the multiple plate-frame molds 100 are arranged and formed. The hydraulic cylinder 600 is used to drive each plate-frame mold 100 to close and to drive each edge 210 to move. In addition, after the multiple plate-frame molds 100 are arranged and formed, fixed plates 400 are provided at both ends thereof. A plate-frame mold 100 away from the hydraulic cylinder 600 is fixed on the relative fixed plate 400, so that when the hydraulic cylinder 600 is extended, all (except the leftmost plate-frame mold 100) plate-frame molds 100 are pushed to the left, so that each plate-frame mold 100 can be closed. When the hydraulic cylinder 600 continues to extend, it can push the rightmost pressure component 200, and the rightmost pressure component 200 gradually pushes the pressure component 200 on its left, so that the punch 120 starts to work.

[0063] Combination Fig.11 and Fig.12 As shown, guide grooves 140 are provided on both side walls of the frame 110, and a sliding portion 230 adapted to the guide grooves 140 is provided in the connecting area between the edge 210 and the main force plate 220 to ensure that the edge 210 and the main force plate 220 can slide on the frame 110, and ensure that the main force plate 220 can push the pressure plate 300.

[0064] Combination Figure 15-18 As shown, in order to enable the hydraulic cylinder 600 to first push the frame 110 to close and then push the pressure-applying component 200 to move, a first pressure rod 610 is fixedly provided at one end of the piston rod of the hydraulic cylinder 600, and a second pressure rod 611 is inserted into the end of the first pressure rod 610 away from the hydraulic cylinder 600, and the other end of the second pressure rod 611 is fixedly connected to a frame 110 close to the hydraulic cylinder 600, and a compensation spring 620 is sleeved on the second pressure rod 611, and the compensation spring 620 is located between the rightmost frame 110 and the first pressure rod 610, and an additional frame 630 is provided between the first pressure rod 610 and a frame 110 close to the hydraulic cylinder 600.

[0065] In this embodiment, when the hydraulic cylinder 600 is extended, it can drive a frame 110 on the right side to move to the left through the first pressure rod 610 and the second pressure rod 611 (the additional frame 630 and all the pressure components 200 are also pushed to the left during the movement of the frame 110 to the left) until all the frames 110 are closed (at this time, the return spring 510 is in a compressed state, the return spring 510 completely enters the hole opened in the frame 110, and the various pressure components 200 are in contact with each other). At this time, the frame 110 is blocked by the leftmost fixed plate 400 and cannot move anymore, that is, the position of the second pressure rod 611 no longer changes, and the hydraulic cylinder 600 drives the first pressure rod 610 to continue to move to the left, and the first pressure rod 610 drives the leftmost pressure component 200 to move to the left through the additional frame 630, so that each pressure component 200 can be subjected to pressure synchronously, so that each pressure component 200 can push the punch 120.

[0066] Continue to refer to Figure 15-18 , and also includes a locking component 700, which is used to lock the second pressure rod 611 and the first pressure rod 610 when the second pressure rod 611 pushes each frame mold 100 to close, so as to avoid the return spring 510 being compressed due to the reverse pressure of each frame mold 100 on the second pressure rod 611 during the process of the second pressure rod 611 pushing each frame mold 100 to close.

[0067] Specifically, locking pins 710 are radially inserted into the upper and lower sides of the first pressure rod 610, a groove adapted to the locking pin 710 is opened on the second pressure rod 611, a return spring 730 is installed between the end of the locking pin 710 away from the first pressure rod 610 and the first pressure rod 610, and there are pressure rails 740 on the upper and lower sides of the first pressure rod 610, and the pressure rails 740 are in a stationary state relative to the first pressure rod 610 and the second pressure rod 611, so that when the first pressure rod 610 drives the locking pin 710 to pass through the pressure rails 740, the pressure rails 740 can press the locking pin 710 into the groove, and the locking pin 710 is disengaged from the pressure rails 740 when each plate frame mold 100 is closed.

[0068] In the present embodiment, when each plate-frame mold 100 has not yet closed, the locking pin 710 is always located on the pressure rail 740, that is, in the process of the hydraulic cylinder 600 extending and pushing each plate-frame mold 100 to close, the pressure rail 740 is always in a state of pressing the locking pin 710 into the groove, that is, in this state, the length of the second pressure rod 611 and the first pressure rod 610 cannot be changed, and the length of the return spring 510 cannot be changed. Once each plate-frame mold 100 is completely closed, the locking pin 710 is separated from the pressure rail 740, and the second pressure rod 611 and the first pressure rod 610 are in a state of variable length.

[0069] In addition, the present invention also includes a feed pipe 800, which connects the plate-frame mold 100 in series along the arrangement direction of the plate-frame mold 100, and a feed hole is provided in the area where the feed pipe 800 is located in the concave cavity 130 (the feed hole mentioned here should be located in the sludge cavity of each plate-frame mold 100 after it is fully closed, so as to facilitate sludge feeding).

[0070] When in use (working), Figure 1 The state shown is the state in which each plate frame mold 100 is opened. At this time, the hydraulic cylinder 600 is driven to extend, and a frame body 110 on the right side can be driven to move to the left through the first pressure rod 610 and the second pressure rod 611. In the process of the frame body 110 moving to the left, the additional frame 630 and all the pressure components 200 are also pushed to the left until all the frames 110 are closed. During this process, the return spring 510 is in a compressed state, and the return spring 510 completely enters the hole opened in the frame body 110, and the various pressure components 200 are in contact with each other, and the pressure rail 740 is always in a state of pressing the locking pin 710 into the groove.

[0071] After all the frames 110 are fully closed, the locking pin 710 disengages from the pressure rail 740. At this time, the locking pin 710 disengages from the groove of the second pressure rod 611. At this time, the second pressure rod 611 and the first pressure rod 610 are in a state of variable length. As the hydraulic cylinder 600 extends, the frame 110 is blocked by the leftmost fixed plate 400 and cannot move anymore, that is, the position of the second pressure rod 611 no longer changes, and the hydraulic cylinder 600 drives the first pressure rod 610 to continue to move to the left. The first pressure rod 610 drives the leftmost pressure component 200 to move to the left through the additional frame 630, so that each pressure component 200 can be subjected to pressure synchronously, so that each main force plate 220 starts to move to the left, so that the main force plate 220 can simultaneously drive all the pressure plates 300 to move to the left through all the springs 250. In this process, the top pressure plate 300 can first push the relative convex The mold 120 enters the concave cavity 130 to squeeze the sludge above, so that the water in the sludge above can flow downward. As the pressing plate 300 moves, it can drive the middle punch 120 to move to the left. At this time, the middle punch 120 can squeeze the sludge in the middle. As the pressing plate 300 continues to move to the left, the lower punch 120 can squeeze the sludge at the bottom. All the sludge is squeezed. When the main force plate 220 moves to the left and pushes the pressing plate 300 to move to the left, the length of the spring 250 remains unchanged, and the relative position of the first guide rod 260 and the main force plate 220 remains unchanged until the pressing plate 300 pushes the punch 120. As the pressing plate 300 continues to move to the left, the spring 250 shortens, and the main force plate 220 moves relatively to the left on the first guide rod 260. The first guide rod 260 can guide the spring 250 to prevent the punch 120 from moving up and down.

[0072] Then the hydraulic cylinder 600 is driven to shorten, so that each pressure component 200 loses pressure. At this time, the pressure component 200 is reset by the rebound effect of the spring 250. During the resetting process, it can directly drive the top punch 120 to move to the right through the top spring 250 and the top pressure plate 300. At the same time, the middle and lower pressure plates 300 move to the right on the drag rod 270 until they reach the position of the drag plate 271. The pressure plate 300 can drive the lower punch 120 to return to the right through the drag plate 271 and the drag rod 270. As the hydraulic cylinder 600 continues to shorten, the return spring 510 loses pressure and rebounds, thereby pushing each plate frame mold 100 to open, and the mud cake falls automatically.

[0073] On the other hand, an embodiment of the present invention further provides a sedimentation tank sludge treatment method, comprising the following steps:

[0074] S1, driving the hydraulic cylinder 600 to extend, so that the second pressing rod 611 pushes a plate frame mold 100 close to the hydraulic cylinder 600, so that each plate frame mold 100 is closed to form a sludge chamber, and then controlling the hydraulic cylinder 600 to stop working;

[0075] S2. Injecting the sludge to be dehydrated into the sludge chamber through the feed pipe 800;

[0076] S3, driving the hydraulic cylinder 600 to extend, so that the first pressing rod 610 pushes an edge 210 close to the hydraulic cylinder 600 through the additional frame 630, and the pressing plates 300 are pushed one by one from top to bottom through the edge 210, the main force plate 220, the spring 250 and the pressing plate 300, so that the pressing plates 300 push the punches 120 one by one, forming a state in which the punches 120 gradually squeeze the sludge from top to bottom, and the squeezed water is discharged from the drainage hole below;

[0077] S4, controlling the hydraulic cylinder 600 to shorten, so that each punch 120 is separated from the mud cake, and each plate-frame mold 100 is separated from each other, so that the mud cake automatically falls downward.

[0078] Preferably, in S1 , the pressing rail 740 is always in a state of squeezing the locking pin 710 to avoid a situation in which the lengths of the second pressing rod 611 and the first pressing rod 610 change in the mold closing state.

[0079] 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.

[0080] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sedimentation tank sludge treatment device, characterized in that: It comprises a plate-frame mould (100), a pressure-applying component (200) and a pressing plate (300); Wherein, the plate frame mold (100) comprises: A frame (110), wherein the frame (110) has a partition (150) therein, and the partition (150) divides the frame (110) into two parts: a concave cavity (130) and a mounting cavity; A male mold (120), wherein the male mold (120) is provided with at least two groups, one upper and one lower, and the two groups of male molds (120) are located on a side of the installation cavity away from the concave cavity (130), and the two groups of male molds (120) seal the installation cavity, and when the two groups of plate-frame molds (100) are arranged side by side, the male mold (120) of one of the plate-frame molds (100) and the concave cavity (130) of the other group of plate-frame molds (100) form a sludge cavity; The pressure-applying component (200) comprises a main force-applying plate (220), the main force-applying plate (220) being located on a side of the installation cavity close to the concave cavity (130), and the main force-applying plate (220) being able to move along a direction of a center line connecting the concave cavity (130) and the installation cavity; The pressing plate (300) is located between the main force-applying plate (220) and the punch (120), and the number of the pressing plates (300) is the same as the number of the punch (120). The distance between different pressing plates (300) and the corresponding punch (120) gradually increases from top to bottom. A spring (250) is fixedly arranged between the main force-applying plate (220) and the pressing plate (300), so that the main force-applying plate (220) pushes the pressing plates (300) one by one from top to bottom, so that the pressing plates (300) squeeze the punch (120) one by one from top to bottom, forming a state in which the punch (120) squeezes the sludge in the sludge chamber from top to bottom. A drag rod (270) is fixedly provided on one side of the male mold (120) close to the pressing plate (300), and a drag plate (271) is fixedly provided after the drag rod (270) passes through the pressing plate (300), so that when the main force application plate (220) moves toward the side close to the concave cavity (130), the pressing plate (300) can drag the relative male mold (120) back to its original position; A convex portion (240) is fixedly provided on one side of the main force application plate (220) close to the spring (250), and the thickness of the convex portion (240) gradually decreases from top to bottom; A first guide rod (260) is sleeved inside the spring (250), one end of the first guide rod (260) is fixed on the pressure plate (300), and the other end of the first guide rod (260) passes through the convex portion (240) and the main force application plate (220); Also includes: Plate frame guide rods (500), wherein the plate frame guide rods (500) are arranged on both sides of the plate frame mold (100), and a plurality of plate frame molds (100) are arranged in series on the plate frame guide rods (500); A return spring (510), wherein the return spring (510) is sleeved on the plate frame guide rod (500), and the return spring (510) is located between the two plate frame molds (100); A pressure frame guide rod (520), wherein both sides of the main force application plate (220) are provided with edge portions (210), and the edge portions (210) are located outside the plate frame mold (100), and a plurality of the edge portions (210) are arranged in series on the pressure frame guide rod (520); A hydraulic cylinder (600), the hydraulic cylinder (600) being located at one end of the plurality of plate frame moulds (100) after being arranged and formed, the hydraulic cylinder (600) being used to drive each plate frame mould (100) to close and to drive each edge portion (210) to move; After the plurality of plate-frame moulds (100) are arranged and formed, fixed plates (400) are provided at both ends thereof, and a plate-frame mould (100) away from the hydraulic cylinder (600) is fixed on the opposite fixed plate (400).

2. A sedimentation tank sludge treatment device according to claim 1, characterized in that: Guide grooves (140) are provided on both side walls of the frame (110), and a sliding portion (230) adapted to the guide grooves (140) is provided in the connection area between the edge portion (210) and the main force application plate (220), so that the edge portion (210) and the main force application plate (220) can slide on the frame (110).

3. A sedimentation tank sludge treatment device according to claim 2, characterized in that: A first pressure rod (610) is fixedly disposed at one end of the piston rod of the hydraulic cylinder (600); a second pressure rod (611) is inserted into an end of the first pressure rod (610) away from the hydraulic cylinder (600); and the other end of the second pressure rod (611) is fixedly connected to a frame (110) close to the hydraulic cylinder (600); An additional frame (630) is provided between the first pressure rod (610) and a frame body (110) close to the hydraulic cylinder (600), and a compensation spring (620) is sleeved on the second pressure rod (611) located between a frame body (110) close to the hydraulic cylinder (600) and the first pressure rod (610).

4. A sedimentation tank sludge treatment device according to claim 3, characterized in that: It also includes a locking component (700), wherein the locking component (700) is used to lock the second pressing rod (611) and the first pressing rod (610) when the second pressing rod (611) pushes each plate frame mold (100) to close; Locking pins (710) are radially inserted into the upper and lower sides of the first pressure rod (610); a groove matching the locking pin (710) is formed on the second pressure rod (611); a return spring (730) is installed between the end of the locking pin (710) away from the first pressure rod (610) and the first pressure rod (610); and pressure rails (740) are provided on the upper and lower sides of the first pressure rod (610); the pressure rails (740) are in a stationary state relative to the first pressure rod (610) and the second pressure rod (611), so that when the first pressure rod (610) drives the locking pin (710) to pass through the pressure rails (740), the pressure rails (740) can press the locking pin (710) into the groove; when each plate frame mold (100) is closed, the locking pin (710) is separated from the pressure rails (740).

5. A sedimentation tank sludge treatment device according to claim 4, characterized in that: It also includes a feed pipe (800), the feed pipe (800) being connected in series with the plate-frame mould (100) along the arrangement direction of the plate-frame mould (100), and a feed hole being provided in a region of the feed pipe (800) located within the concave cavity (130).

6. A sedimentation tank sludge treatment method, applied to a sedimentation tank sludge treatment device according to claim 5, characterized in that: The following steps are involved: S1, driving the hydraulic cylinder (600) to extend, so that the second pressing rod (611) pushes a plate frame mold (100) close to the hydraulic cylinder (600), so that each plate frame mold (100) is in a closed state, forming a sludge chamber, and then controlling the hydraulic cylinder (600) to stop working; S2, injecting the sludge to be dehydrated into the sludge chamber through the feed pipe (800); S3, driving the hydraulic cylinder (600) to extend, so that the first pressing rod (610) pushes an edge (210) close to the hydraulic cylinder (600) through (900), and pushes the pressing plates (300) one by one from top to bottom through the edge (210), the main force plate (220), the spring (250) and the pressing plate (300), so that the pressing plates (300) push the punches (120) one by one, forming a state in which the punches (120) gradually squeeze the sludge from top to bottom, and the squeezed water is discharged from the drainage hole below; S4. Control the hydraulic cylinder (600) to shorten, so that each punch (120) is separated from the mud cake, and each plate-frame mold (100) is separated from each other, so that the mud cake automatically falls off downward.

7. A sedimentation tank sludge treatment method according to claim 6, characterized in that: In S1, the pressure rail (740) is always in a state of pressing the locking pin (710).

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