Water-saving device for flushing water of belt filter press

Abstract

The invention provides a flushing water saving device for a belt filter press. The washing water saving device for the belt filter press comprises a cleaning box, a rolling brush assembly and a vibration assembly, and a first brush roller and a second brush roller are in clearance fit to enable a filter belt to be cleaned to penetrate through the gap between the first brush roller and the second brush roller, so that the upper surface and the lower surface of the filter belt are brushed when the first brush roller and the second brush roller rotate. And the vibration assembly can drive the first brush roller and the second brush roller to reciprocate when the first brush roller and the second brush roller rotate, so that the first brush roller and the second brush roller generate a vibration effect in the vertical direction. The first brush roller and the second brush roller are used for vibrating the filter belt clamped by the filter belt in the vertical direction, so that slurry on the surface of the filter belt or material particles clamped in meshes can be vibrated and separated. Therefore, through the arrangement of the vibration assembly, the cleaning effect and cleaning efficiency of the first brush roller and the second brush roller on the filter belt can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of belt filter presses, in particular to a belt filter press flushing water saving device. Background Art

[0002] In order to achieve solid-liquid separation of sludge, reduce the volume of sludge, increase the solid content of sludge, reduce the transportation cost of sludge, and facilitate subsequent treatment and disposal, chemical and physical methods are usually used to change the characteristics of sludge to achieve sludge-water separation and reduce the water content. Common sludge dewatering methods include gravity concentration, natural drying, mechanical dewatering, sludge thermal drying, etc. Sludge dewatering in my country is mainly achieved by gravity concentration to reduce the sludge water content to 95%~98%, mechanical dewatering to reduce the sludge solid water content to 60%~80%, and drying treatment to further reduce the sludge water content to 10%~40%, and the sludge volume is greatly reduced. The main sludge mechanical dewatering technologies include filter press dewatering, centrifugal dewatering and screw stacking dewatering.

[0003] Through mechanical squeezing and dehydration, some sludge will enter the gaps of the filter belt, causing the filter belt to be blocked, so a large amount of water is needed to flush it to regenerate the filter belt. Due to the strong adhesion of sludge, flushing the filter belt often requires a large amount of water to overturn and clean it to achieve the desired cleaning effect, which causes a waste of water resources and leads to low cleaning efficiency. Summary of the invention

[0004] In view of the above problems, the present invention is proposed to provide a belt filter press flushing water saving device that overcomes the above problems or at least partially solves the above problems, which can solve the problem of low filter belt cleaning efficiency of the existing filter belt cleaning device, thereby achieving the effect of saving water resources and improving the filter belt cleaning efficiency.

[0005] Specifically, the present invention provides a belt filter press flushing water saving device, the belt filter press flushing water saving device comprising: A cleaning box, wherein the front and rear walls of the cleaning box are provided with vertically extending vibration grooves; A roller brush assembly, the roller brush assembly comprising a first brush roller, a second brush roller and a driving mechanism; the axes of the first brush roller and the second brush roller are parallel to each other and are clearance-matched; the rotating shafts at the front and rear ends of the first brush roller and the second brush roller extend into the vibration grooves at the front and rear sides respectively, so that the first brush roller and the second brush roller slide up and down in the vibration groove; the driving mechanism is used to drive the first brush roller and the second brush roller to rotate synchronously; A vibration component is connected to the first brush roller and the second brush roller, and is used to make the first brush roller and the second brush roller vibrate in a vertical direction when the first brush roller and the second brush roller rotate.

[0006] Optionally, the vibration assembly includes two vibration parts respectively located at the front and rear sides of the cleaning box; The vibration part includes a first vibration spring, a second vibration spring, a first centrifugal block and a second centrifugal block; The first vibration spring and the second vibration spring are both arranged in the vibration groove; the first vibration spring is located on the upper side of the first brush roller, one end of which is rotatably connected to the rotating shaft of the first brush roller, and the other end is fixed to the top of the vibration groove; the second vibration spring is located on the lower side of the second brush roller, one end of which is rotatably connected to the rotating shaft of the second brush roller, and the other end is fixed to the bottom of the vibration groove; the first centrifugal block and the second centrifugal block are respectively fixed to the rotating shafts of the first brush roller and the second brush roller, and the initial angles of the first centrifugal block and the second centrifugal block are the same.

[0007] Optionally, the vibration part further includes a synchronization rod; two ends of the synchronization rod are rotationally connected to the rotation shafts of the first brush roller and the second brush roller respectively.

[0008] Optionally, the belt filter press flushing water saving device further comprises: A traction assembly, the traction assembly comprising a driven wheel and a driving wheel; the driven wheel and the driving wheel are rotatably disposed on the left and right sides of the cleaning box respectively; A water diversion assembly, the water diversion assembly comprising a water diversion pipe and a sedimentation tank; one end of the water diversion pipe is connected to the bottom of the cleaning tank; the inside of the sedimentation tank is connected to the other end of the water diversion pipe; A spray assembly, the spray assembly includes a water pipe, a spray head and a return pump mechanism; the spray head is arranged in the cleaning box and is located above the filter belt; one end of the water pipe is connected to the spray head, and the other end is connected to the upper half of the sedimentation box through the return pump mechanism; the return pump mechanism is connected to the driving wheel and is used to pressurize the water in the sedimentation box into the water pipe when the driving wheel rotates.

[0009] Optionally, the return pump mechanism includes two return pumps, two return pipes and a connecting rod assembly; the lower end of each return pump is connected to the sedimentation tank through a return pipe, and the upper end is connected to the other end of the water supply pipe; a first one-way valve that only allows water to flow from the sedimentation tank to the return pump is provided in the return pipe; a piston is provided in the return pump; a second one-way valve that only allows water to flow from bottom to top is provided on the piston; the connecting rod assembly is respectively connected to the two pistons and to the driving wheel, and the connecting rod assembly is used to drive the two pistons to slide up and down alternately when the driving wheel rotates.

[0010] Optionally, the connecting rod assembly includes a transmission rod, a swing rod and two connecting rods; Each of the connecting rods can be inserted into a return water pump so as to slide up and down, and the lower end of the connecting rod is fixedly connected to the piston; the swing rod is rotatably arranged at a preset position with the center of its length as the axis; the two ends of the swing rod are respectively hinged to the upper ends of the two connecting rods; one end of the transmission rod is hinged to the eccentric point of the driving wheel, and the other end is hinged to one end of the swing rod.

[0011] Optionally, the one-way valve comprises a one-way plate, a torsion spring and a blocking block; The piston is provided with a valve hole which passes through the valve hole from top to bottom; the one-way plate is horizontally arranged in the valve hole, and a lateral edge of the one-way plate is rotatably connected to the valve hole so that the one-way plate rotates around the corresponding lateral edge; the torsion spring connects the valve hole and the one-way plate; the blocking block is fixedly arranged on the inner wall of the valve hole, and is used for contacting the lower surface of the one-way plate when the one-way plate is in a horizontal state.

[0012] Optionally, a permeation plate is provided in the sedimentation tank; the permeation plate is vertically inserted in the sedimentation tank to divide the sedimentation tank into a first chamber and a second chamber; the permeation plate is used to prevent sludge from entering the second chamber; the other end of the water diversion pipe is connected to the first chamber; the other end of the water delivery pipe is connected to the second chamber.

[0013] Optionally, the sedimentation tank is further provided with a first sewage pipe and a second sewage pipe; the first sewage pipe is communicated with the first cavity; the second sewage pipe is communicated with the second cavity.

[0014] Optionally, the cleaning box includes an upper box body and a lower box body; the upper box body and the lower box body are clearance-matched.

[0015] In the water-saving device for flushing water of the belt filter press of the present invention, since there are a cleaning box, a roller brush assembly and a vibration assembly, and the clearance between the first brush roller and the second brush roller is used to allow the filter belt to be cleaned to pass between the two, so as to brush the upper and lower surfaces of the filter belt when the first brush roller and the second brush roller rotate. The vibration assembly can drive the first brush roller and the second brush roller to move back and forth when the first brush roller and the second brush roller rotate, so that the first brush roller and the second brush roller produce a vibration effect in the vertical direction. That is to say, when the first brush roller and the second brush roller brush the filter belt, the filter belt of the clamped part can be vibrated in the up and down directions at the same time, so that the mud on the surface of the filter belt or the material particles stuck in the mesh can be vibrated and separated. Therefore, the setting of the vibration assembly can greatly improve the cleaning effect and cleaning efficiency of the first brush roller and the second brush roller on the filter belt, and at the same time, the effect of saving water resources can be achieved due to the improved cleaning efficiency.

[0016] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 is a schematic structural diagram of a belt filter press flushing water saving device according to an embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 is a schematic internal structural diagram of a belt filter press flushing water saving device according to an embodiment of the present invention; Figure 4 yes Figure 3 A partial enlarged view of point B in the middle; Figure 5 is a schematic structural diagram of a return water pump in a belt filter press flushing water saving device according to an embodiment of the present invention; Figure 6 yes Figure 5 A partial enlarged view of point C in the middle.

[0018] In the figure: 100, cleaning box; 110, upper box body; 120, lower box body; 130, vibration tank; 210, water diversion pipe; 220, sedimentation box; 230, first chamber; 231, first sewage pipe; 240, second chamber; 241, second sewage pipe; 250, permeation plate; 251, overflow port; 310, water pipe; 311, three-way pipe; 320, sprinkler head; 340, water valve; 410, first brush roller; 420, second brush roller; 430, drive motor; 500, filter belt; 600, vibration assembly; 610, first vibration spring; 6 20. Second vibration spring; 630. First centrifugal block; 640. Second centrifugal block; 650. Synchronous rod; 700. Traction assembly; 710. Driving wheel; 720. Driven wheel; 730. Mounting frame; 800. Return pump mechanism; 810. Return water pump; 811. Upper chamber; 812. Lower chamber; 820. Return water pipe; 821. First one-way valve; 830. Connecting rod assembly; 831. Transmission rod; 832. Swinging rod; 833. Connecting rod; 840. Piston; 841. Valve hole; 842. One-way plate; 844. Blocking block; 850. Second one-way valve. DETAILED DESCRIPTION

[0019] Refer to the following Figures 1 to 6To describe a belt filter press flushing water saving device according to an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0020] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0021] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0023] Figure 1 This is a schematic diagram of the structure of the belt filter press flushing water saving device. Figure 1As shown, and refer to Figures 2 to 6 The embodiment of the present invention provides a water-saving device for flushing water of a belt filter press, and the water-saving device for flushing water of a belt filter press comprises a cleaning box 100, a roller brush assembly and a vibration assembly 600. A vertically extending vibration groove 130 is provided on the front and rear walls of the cleaning box 100. The roller brush assembly comprises a first brush roller 410, a second brush roller 420 and a driving mechanism. The axes of the first brush roller 410 and the second brush roller 420 are parallel to each other and have clearance fit. The rotating shafts at the front and rear ends of the first brush roller 410 and the second brush roller 420 extend into the vibration groove 130 on the front and rear sides, respectively, so that the first brush roller 410 and the second brush roller 420 slide up and down in the vibration groove 130. The driving mechanism is used to drive the first brush roller 410 and the second brush roller 420 to rotate synchronously. The vibration assembly 600 is connected to the first brush roller 410 and the second brush roller 420, and is used to make the first brush roller 410 and the second brush roller 420 reciprocate in the vertical direction when the first brush roller 410 and the second brush roller 420 rotate.

[0024] Specifically, the clearance between the first brush roller 410 and the second brush roller 420 is used to allow the filter belt 500 to pass through the gap between the first brush roller 410 and the second brush roller 420, so as to brush the upper and lower surfaces of the filter belt 500 when the first brush roller 410 and the second brush roller 420 rotate. Figure 1 As shown, perpendicular to the direction of the attempt, the vibration groove 130 provided on the front and rear side walls of the cleaning box 100 is used to constrain the moving direction of the first brush roller 410 and the second brush roller 420, so that the first brush roller 410 and the second brush roller 420 can only slide back and forth in the up and down direction. Further, the vibration assembly 600 can drive the first brush roller 410 and the second brush roller 420 to move back and forth when the first brush roller 410 and the second brush roller 420 rotate, so that the first brush roller 410 and the second brush roller 420 produce a vibration effect in the vertical direction. That is to say, when the first brush roller 410 and the second brush roller 420 brush the filter belt 500, the clamped part of the filter belt 500 can be vibrated in the up and down direction at the same time, so that the mud on the surface of the filter belt 500 or the material particles stuck in the mesh can be vibrated out. Therefore, the setting of the vibration assembly 600 can greatly improve the cleaning effect of the first brush roller 410 and the second brush roller 420 on the filter belt 500.

[0025] In this embodiment, the driving mechanism is a driving motor 430 , which is disposed on the cleaning box 100 and connected to the first brush roller 410 and the second brush roller 420 to drive the first brush roller 410 and the second brush roller 420 to rotate synchronously.

[0026] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the vibration assembly 600 includes two vibration parts respectively located at the front and rear sides of the cleaning box 100. The vibration part includes a first vibration spring 610, a second vibration spring 620, a first centrifugal block 630 and a second centrifugal block 640. The first vibration spring 610 and the second vibration spring 620 are both arranged in the vibration groove 130. The first vibration spring 610 is located on the upper side of the first brush roller 410, one end of which is rotatably connected to the rotating shaft of the first brush roller 410, and the other end is fixed to the top of the vibration groove 130. The second vibration spring 620 is located on the lower side of the second brush roller 420, one end of which is rotatably connected to the rotating shaft of the second brush roller 420, and the other end is fixed to the bottom of the vibration groove 130. The first centrifugal block 630 and the second centrifugal block 640 are respectively fixed to the rotating shafts of the first brush roller 410 and the second brush roller 420, and the initial angles of the first centrifugal block 630 and the second centrifugal block 640 are the same.

[0027] Specifically, the first vibration spring 610 and the second vibration spring 620 can provide support force to the first brush roller 410 and the second brush roller 420 respectively, and can also provide vertical buffering to the first brush roller 410 and the second brush roller 420, so as to increase the vibration effect when the first brush roller 410 and the second brush roller 420 move up and down. Furthermore, the first centrifugal block 630 and the second centrifugal block 640 rotate synchronously with the first brush roller 410 and the second brush roller 420 respectively, and the first centrifugal block 630 and the second centrifugal block 640 generate centrifugal force during the rotation process, thereby driving the rotating shafts of the first brush roller 410 and the second brush roller 420 to move up and down in the vibration groove 130, thereby causing the first brush roller 410 and the second brush roller 420 to vibrate. Furthermore, since the initial state angles of the first centrifugal block 630 and the second centrifugal block 640 are the same, and the first brush roller 410 and the second brush roller 420 rotate synchronously, when the first brush roller 410 and the second brush roller 420 rotate, the first centrifugal block 630 and the second centrifugal block 640 are driven to rotate synchronously, so that the first brush roller 410 and the second brush roller 420 can move upward or downward synchronously, thereby ensuring the gap between the first brush roller 410 and the second brush roller 420.

[0028] Furthermore, a rotating sleeve is rotatably mounted on the rotating shafts of the first brush roller 410 and the second brush roller 420 , and the first vibration spring 610 and the second vibration spring 620 are respectively fixedly connected to the corresponding rotating sleeves.

[0029] In some embodiments of the present invention, Figure 2As shown, the vibration part further includes a synchronization rod 650, and the two ends of the synchronization rod 650 are respectively rotatably connected to the rotating shafts of the first brush roller 410 and the second brush roller 420. Specifically, the synchronization rod 650 is a straight rod, and the two ends of the synchronization rod 650 are respectively fixed to the rotating sleeves on the rotating shafts of the first brush roller 410 and the second brush roller 420. The setting of the synchronization rod 650 can keep the distance between the first brush roller 410 and the second brush roller 420 in a stable state, thereby preventing the gap between the first brush roller 410 and the second brush roller 420 from increasing during the centrifugal movement of the first centrifugal block 630 and the second centrifugal block 640, thereby further stabilizing the first brush roller 410 and the second brush roller 420 to maintain the clamping state of the filter belt 500, thereby improving the cleaning effect of the filter belt 500.

[0030] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the belt filter press flushing water saving device also includes a traction assembly 700, a water diversion assembly and a spray assembly. The traction assembly 700 includes a driven wheel 720 and a driving wheel 710, which are rotatably arranged on the left and right sides of the cleaning box 100 respectively.

[0031] The water diversion assembly includes a water diversion pipe 210 and a sedimentation tank 220. One end of the water diversion pipe 210 is connected to the bottom of the cleaning tank 100, and the inside of the sedimentation tank 220 is connected to the other end of the water diversion pipe 210. The spray assembly includes a water delivery pipe 310, a spray head 320 and a return pump mechanism 800. The spray head 320 is arranged in the cleaning tank 100 and is located above the filter belt 500. One end of the water delivery pipe 310 is connected to the spray head 320, and the other end is connected to the upper half of the sedimentation tank 220 through the return pump mechanism 800. The return pump mechanism 800 is connected to the driving wheel 710, and is used to pressurize the water in the sedimentation tank 220 into the water delivery pipe 310 when the driving wheel 710 rotates.

[0032] Specifically, in the initial state, the filter belt 500 to be cleaned is wound around the driven wheel 720, and the driven wheel 720 is led outward through the cleaning box 100 and then wound around the driving wheel 710. The driving wheel 710 is connected to a driving motor, so the driving wheel 710 rotates to drive the filter belt 500 to wind around the driving wheel 710 and release the filter belt 500 on the driven wheel 720. It should be noted that the left and right directions of the cleaning box 100 are as follows: Figure 1 Further, the spray head 320 includes one or two spray heads, which are arranged on the left and right sides of the first brush roller 410 or on the right side of the first brush roller 410 .

[0033] Furthermore, the sedimentation tank 220 is used to sediment the sewage containing sludge, so that the sludge sinks to the bottom of the sedimentation tank 220. The water becomes clearer as it goes up from the sedimentation tank 220. Therefore, the connection between the water pipe 310 and the upper half of the sedimentation tank 220 can enable the water pipe 310 to transport clean water to the outside, so that the spray head 320 can improve the cleaning effect of the filter belt 500.

[0034] Specifically, the water inlet pipe 210 can collect the water used to clean the filter belt 500 into the sedimentation tank 220, and the water supply pipe 310 then discharges the water in the sedimentation tank 220 that has been precipitated from the sedimentation tank 220, and cleans the filter belt 500 again through the sprinkler head 320, thereby realizing the internal recycling of the cleaning water. There is no need for continuous water supply from the outside, which greatly reduces water consumption and the cost of subsequent sewage treatment. Since there is no high-pressure water flow to impact the filter belt 500, no noise will be generated, and noise pollution can also be reduced.

[0035] Furthermore, the setting of the return pump mechanism 800 can pressurize the water in the sedimentation tank and pump it into the water pipe 310 when the driving wheel 710 rotates, so that the return pump mechanism 800 can use the power of the driving wheel 710 to pump water into the water pipe 310, thereby achieving energy saving effect.

[0036] During operation, the driving wheel 710 rotates to drive the filter belt 500 to move forward, and the driving motor 430 is started. The driving motor 430 drives the first brush roller 410 and the second brush roller 420 to rotate, so that the first brush roller 410 and the second brush roller 420 clean the surface of the filter belt 500. When the first brush roller 410 and the second brush roller 420 rotate, the first centrifugal block 630 and the second centrifugal block 640 are driven to rotate synchronously. The first centrifugal block 630 and the second centrifugal block 640 perform centrifugal motion when rotating, thereby driving the first brush roller 410 and the second brush roller 420 to perform up and down reciprocating motion in the vibration groove 130, thereby driving the first brush roller 410 and the second brush roller 420 to vibrate and shake the filter belt 500.

[0037] The driving wheel 710 rotates and when rotating, the water in the sedimentation tank is pumped into the delivery pipe through the return pump mechanism 800, and the water in the delivery pipe is used to wash and clean the filter belt 500 through the spray head 320. Furthermore, when there are two spray heads 320, the water sprayed by the spray head 320 located on the left side of the first brush roller 410 can soften the sludge on the filter belt 500 to facilitate the cleaning of the brush roller; the water sprayed by the spray head 320 located on the right side of the first brush roller 410 can further wash the filter belt 500.

[0038] In this embodiment, a water delivery valve 340 for controlling the on-off of the water delivery pipe 310 is disposed on the water delivery pipe 310 .

[0039] In some embodiments of the present invention, Figures 3 to 5 As shown, the return pump mechanism 800 includes two return pumps 810, two return pipes 820 and a connecting rod assembly 830. The lower end of each return pump 810 is connected to the sedimentation tank 220 through a return pipe 820, and the upper end is connected to the other end of the water delivery pipe 310. A first one-way valve 821 is provided in the return pipe 820, which only allows water to flow from the sedimentation tank 220 to the return pump 810, and a piston 840 is provided in the return pump 810. A second one-way valve 850 is provided on the piston 840, which only allows water to flow from bottom to top. The connecting rod assembly 830 is connected to the two pistons 840 respectively, and is also connected to the driving wheel 710. The connecting rod assembly 830 is used to drive the two pistons 840 to slide up and down alternately when the driving wheel 710 rotates.

[0040] Specifically, a three-way pipe 311 is provided at one end of the delivery pipe, and the delivery pipe is connected to the two return water pumps 810 respectively through the three-way pipe 311. Further, the piston 840 divides the return water pump 810 into an upper chamber 811 and a lower chamber 812, and the sizes of the upper chamber 811 and the lower chamber 812 are negatively correlated. Due to the arrangement of the first one-way valve 821 and the second one-way valve 850, when the piston 840 moves downward, the lower chamber 812 is compressed and reduced, and the upper chamber 811 is expanded and increased. Since the first one-way valve 821 is in a closed state and the second one-way valve 850 is in an open state, the negative pressure generated by the upper chamber 811 causes the water in the lower chamber 812 to enter the upper chamber 811 through the second one-way valve 850.

[0041] On the contrary, when the piston 840 moves upward, the compression of the upper chamber 811 decreases, and the expansion of the lower chamber 812 increases. Since the second one-way valve 850 is in a closed state and the first one-way valve 821 is in an open state, the negative pressure generated by the lower chamber 812 will drive the water in the sedimentation tank 220 into the lower chamber 812 through the first one-way valve 821. At the same time, since the compression of the upper chamber 811 decreases, the piston 840 pressurizes the water in the upper chamber 811 into the water pipe 310.

[0042] Specifically, the connecting rod assembly 830 and the piston 840 are arranged to slide up and down alternately, so that when one piston 840 slides upward, the other piston 840 slides downward, that is, when the upper chamber 811 of one return water pump 810 expands and the lower chamber 812 shrinks, the upper chamber 811 of the other return water pump 810 shrinks and the lower chamber 812 expands. Since the piston 840 can pump the water in the upper chamber 811 of the return water pump 810 into the water pipe 310 only when it moves upward, the alternating movement of the two pistons 840 can ensure that at least one piston 840 of the return water pump 810 is in an upward moving state, so that the two return water pumps 810 pump water into the water pipe 310 uninterruptedly, so as to ensure the continuity of the water output of the sprinkler head 320 and ensure the water washing effect on the filter belt 500.

[0043] In some embodiments of the present invention, Figure 4 As shown, the connecting rod assembly 830 includes a transmission rod 831, a swing rod 832 and two connecting rods 833. Each connecting rod 833 can be inserted into a return water pump 810 in a sliding manner, and the lower end of the connecting rod 833 is fixed to the piston 840. The swing rod 832 is rotatably arranged at a preset position with the center of its length as the axis, and the two ends of the swing rod 832 are respectively hinged to the upper ends of the two connecting rods 833. One end of the transmission rod 831 is hinged to the eccentric part of the driving wheel 710, and the other end is hinged to one end of the swing rod 832.

[0044] Specifically, the driving wheel 710 is mounted on the mounting frame 730, and the preset position is located on the mounting frame 730. The swing rod 832 performs a lever swing motion with a center on the mounting frame 730 as an axis, so when both ends of the swing rod 832 move up and down, the corresponding connecting rod 833 and the piston 840 can be driven to move up and down, thereby realizing the alternate reciprocating movement of the pistons 840 in the two return water pumps 810.

[0045] Furthermore, one end of the transmission rod 831 is hinged to the eccentric part of the driving wheel 710, so that the driving rod, the driving wheel 710 and one end of the swing rod 832 form a crank-connecting rod mechanism. Therefore, when the driving wheel 710 rotates, the driving wheel 710 can drive the swing rod 832 to perform a lever swing motion through the transmission rod 831.

[0046] In some embodiments of the present invention, Figure 5 and Figure 6 As shown, the second one-way valve 850 includes a one-way plate 842, a torsion spring and a blocking block 844. A valve hole 841 is provided on the piston 840 and passes through the valve hole 841 from top to bottom. The one-way plate 842 is horizontally arranged in the valve hole 841. One lateral edge of the one-way plate 842 is rotatably connected to the valve hole 841 so that the one-way plate 842 rotates around the corresponding lateral edge. The torsion spring connects the valve hole 841 and the one-way plate 842. The blocking block 844 is fixedly arranged on the inner wall of the valve hole 841, and is used to contact the lower surface of the one-way plate 842 when the one-way plate 842 is in a horizontal state.

[0047] Specifically, the setting of the stopper 844 can prevent the one-way plate 842 from rotating downward, so that when the piston 840 moves upward, the one-way plate 842 is in a state of horizontally closing the valve hole 841. In this embodiment, the first one-way valve 821 and the second one-way valve 850 have the same structure.

[0048] In some embodiments of the present invention, Figure 3As shown, a permeable plate 250 is provided in the sedimentation tank 220. The permeable plate 250 is vertically inserted into the sedimentation tank 220 to divide the sedimentation tank 220 into a first chamber 230 and a second chamber 240. The permeable plate 250 is used to prevent sludge from entering the second chamber 240. The other end of the water diversion pipe 210 is connected to the first chamber 230; the other end of the water delivery pipe 310 is connected to the second chamber 240.

[0049] Specifically, the first chamber 230 and the second chamber 240 are respectively located on the left and right sides of the permeable plate 250. The first chamber 230 is connected to the water pipe 210, so that the sewage for cleaning the filter plate can first enter the first chamber 230, and the sewage is precipitated in the first chamber 230. Further, the setting of the permeable plate 250 can allow the water in the sewage to enter the second chamber 240 through osmosis, thereby preventing sludge from entering the second chamber 240, thereby ensuring that the water in the second chamber 240 is relatively clear. Further, the second chamber 240 is connected to the water pipe 310, so that the spray head 320 can spray the filtered clean water for cleaning the filter belt 500, thereby ensuring the cleaning effect of the filter belt 500.

[0050] In some embodiments of the present invention, Figure 3 As shown, an overflow port 251 is provided at a preset height position of the permeable plate 250. Specifically, the overflow is set so that when the water level in the first chamber 230 is higher than the preset height, water can directly enter the second chamber 240 from the overflow port 251. Since the height of the sludge precipitation increases with the increase of the cleaning time of the filter belt 500, the setting of the overflow port 251 can prevent the water inflow in the first chamber 230 from being greater than the water outflow, resulting in the first chamber 230 overflowing.

[0051] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the sedimentation tank 220 is further provided with a first sewage pipe 231 and a second sewage pipe 241. The first sewage pipe 231 is communicated with the first chamber 230, and the second sewage pipe 241 is communicated with the second chamber 240.

[0052] Specifically, the first sewage pipe 231 and the second sewage pipe 241 are both provided with switch valves, and the first sewage pipe 231 and the second sewage pipe 241 are used to discharge sewage in the first cavity 230 and the second cavity 240 to the outside, respectively.

[0053] In some embodiments of the present invention, Figure 1 and Figure 3As shown, the cleaning box 100 includes an upper box body 110 and a lower box body 120; the upper box body 110 and the lower box body 120 are clearance-matched to form an inlet for introducing the filter belt 500 and an outlet for leading the filter belt 500 out. Specifically, the upper box body 110 and the lower box body 120 form a cleaning space, so as to prevent the sewage used to clean the filter screen from splashing around. Further, the driving motor 430 is arranged above the upper box body 110.

[0054] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A belt filter press flushing water saving device, characterized in that: include: A cleaning box, wherein the front and rear walls of the cleaning box are provided with vertically extending vibration grooves; A roller brush assembly, the roller brush assembly is arranged in the cleaning box, and comprises a first brush roller, a second brush roller and a driving mechanism; the axes of the first brush roller and the second brush roller are parallel to each other and are clearance-matched; the rotating shafts at the front and rear ends of the first brush roller and the second brush roller extend into the vibration grooves at the front and rear sides respectively, so that the first brush roller and the second brush roller slide up and down in the vibration groove; the driving mechanism is used to drive the first brush roller and the second brush roller to rotate synchronously; A vibration component is connected to the first brush roller and the second brush roller, and is used to make the first brush roller and the second brush roller reciprocate in a vertical direction when the first brush roller and the second brush roller rotate.

2. The belt filter press flushing water saving device according to claim 1, characterized in that: The vibration assembly includes two vibration parts respectively located at the front and rear sides of the cleaning box; The vibration part includes a first vibration spring, a second vibration spring, a first centrifugal block and a second centrifugal block; The first vibration spring and the second vibration spring are both arranged in the vibration groove; the first vibration spring is located on the upper side of the first brush roller, one end of which is rotatably connected to the rotating shaft of the first brush roller, and the other end is fixed to the top of the vibration groove; the second vibration spring is located on the lower side of the second brush roller, one end of which is rotatably connected to the rotating shaft of the second brush roller, and the other end is fixed to the bottom of the vibration groove; the first centrifugal block and the second centrifugal block are respectively fixed to the rotating shafts of the first brush roller and the second brush roller, and the initial angles of the first centrifugal block and the second centrifugal block are the same.

3. The belt filter press flushing water saving device according to claim 2, characterized in that: The vibration part also includes a synchronization rod; two ends of the synchronization rod are respectively rotatably connected to the rotation shafts of the first brush roller and the second brush roller.

4. The belt filter press flushing water saving device according to claim 1, characterized in that: Also includes: A traction assembly, the traction assembly comprising a driven wheel and a driving wheel; the driven wheel and the driving wheel are rotatably disposed on the left and right sides of the cleaning box respectively; A water diversion assembly, the water diversion assembly comprising a water diversion pipe and a sedimentation tank; one end of the water diversion pipe is connected to the bottom of the cleaning tank; the inside of the sedimentation tank is connected to the other end of the water diversion pipe; A spray assembly, the spray assembly includes a water pipe, a spray head and a return pump mechanism; the spray head is arranged in the cleaning box and is located above the filter belt; one end of the water pipe is connected to the spray head, and the other end is connected to the upper half of the sedimentation box through the return pump mechanism; the return pump mechanism is connected to the driving wheel and is used to pressurize the water in the sedimentation box into the water pipe when the driving wheel rotates.

5. The belt filter press flushing water saving device according to claim 4, characterized in that: The return pump mechanism includes two return pumps, two return pipes and a connecting rod assembly; the lower end of each return pump is connected to the sedimentation tank through a return pipe, and the upper end is connected to the other end of the water delivery pipe; a first one-way valve that only allows water to flow from the sedimentation tank to the return pump is arranged in the return pipe; a piston is arranged in the return pump; a second one-way valve that only allows water to flow from bottom to top is arranged on the piston; the connecting rod assembly is respectively connected to the two pistons and to the driving wheel, and the connecting rod assembly is used to drive the two pistons to slide up and down alternately when the driving wheel rotates.

6. The belt filter press flushing water saving device according to claim 5, characterized in that: The connecting rod assembly includes a transmission rod, a swing rod and two connecting rods; Each of the connecting rods can be inserted into a return water pump so as to slide up and down, and the lower end of the connecting rod is fixedly connected to the piston; the swing rod is rotatably arranged at a preset position with the center of its length as the axis; the two ends of the swing rod are respectively hinged to the upper ends of the two connecting rods; one end of the transmission rod is hinged to the eccentric point of the driving wheel, and the other end is hinged to one end of the swing rod.

7. The belt filter press flushing water saving device according to claim 5, characterized in that: The second one-way valve comprises a one-way plate, a torsion spring and a blocking block; The piston is provided with a valve hole which passes through the valve hole from top to bottom; the one-way plate is horizontally arranged in the valve hole, and a lateral edge of the one-way plate is rotatably connected to the valve hole so that the one-way plate rotates around the corresponding lateral edge; the torsion spring connects the valve hole and the one-way plate; the blocking block is fixedly arranged on the inner wall of the valve hole, and is used for contacting the lower surface of the one-way plate when the one-way plate is in a horizontal state.

8. The belt filter press flushing water saving device according to claim 4, characterized in that: A permeation plate is provided in the sedimentation box; the permeation plate is vertically inserted in the sedimentation box to divide the sedimentation box into a first chamber and a second chamber; the permeation plate is used to prevent sludge from entering the second chamber; the other end of the water diversion pipe is connected to the first chamber; the other end of the water delivery pipe is connected to the second chamber.

9. The belt filter press flushing water saving device according to claim 8, characterized in that: The sedimentation tank is also provided with a first sewage pipe and a second sewage pipe; the first sewage pipe is communicated with the first cavity; the second sewage pipe is communicated with the second cavity.

10. The belt filter press flushing water saving device according to claim 1, characterized in that: The cleaning box comprises an upper box body and a lower box body; the upper box body and the lower box body are clearance-matched.

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