Dust suppression device for unloading of precursor material after centrifugal dewatering

Abstract

The invention relates to the field of precursor material dehydration and centrifugation, and provides a dust suppression device for unloading of a precursor material after centrifugal dehydration. The lifting air cylinders are arranged at four corners of the top of the rack, and the end parts of movable rods of the lifting air cylinders are vertically downward; and the dust suppression cover is connected between movable rods of the lifting air cylinders, a circular material passing opening is formed in the dust suppression cover, and the dust suppression cover slides up and down in the rack. By arranging the dust suppression cover for connecting the centrifugal machine with the material frame through the flexible pipeline, during centrifugal discharging, the material passing opening of the material receiving device is closed through the dust suppression cover, during discharging, the interior of the material receiving device is in a closed state, and by means of cooperation of the direct exhaust filtering piece and the externally-connected pressure control equipment, the phenomenon that the material receiving device is not damaged during discharging of the discharging type centrifugal machine is effectively reduced. Falling powder escapes and floats outside the material receiving device, so that material loss caused by flying dust and influence on the field working environment are effectively reduced.

Description

Technical Field

[0001] The invention relates to the field of centrifugal dehydration of precursor materials, and in particular to a dust suppression device for unloading precursor materials after centrifugal dehydration. Background Art

[0002] In the production of precursor materials, dehydration is a key pretreatment step in the preparation of precursor materials in order to improve the purity of the precursor materials, reduce the moisture content in the materials, and facilitate subsequent processing steps.

[0003] In the production process of ternary precursor dehydration processing, centrifugal equipment is an indispensable equipment. With the popularization of automated production, precursor dehydration processing is usually equipped with automated centrifugal equipment with bottom unloading design. Through the set control function, the unloading valve can be automatically opened after the separation is completed, reducing manual intervention and suitable for continuous production processes. Once the parameters are set, the centrifuge can continuously feed, separate and unload, which is suitable for mass production needs. Compared with some centrifuges that require physical turning or forceful unloading, the discharge is stable and gentle.

[0004] However, in the process of unloading after centrifugation, when the material is discharged from the bottom unloading centrifuge and the powder falls from a high place into the material frame or feeding bin of the docking unloading area, the precursor material with a smaller particle size is disturbed by the external airflow during the falling process, which is easy to generate a large amount of dust. The dust overflows and scatters. If the dust is not collected, it will cause material waste and pollute the workshop air, affecting the working environment. Summary of the invention

[0005] The present invention aims to solve at least one of the problems existing in the above-mentioned prior art. To this end, the present invention provides a dust suppression device for unloading precursor materials after centrifugal dehydration.

[0006] A dust suppression device for unloading precursor materials after centrifugal dehydration, comprising a frame; a lifting cylinder arranged on the four corners of the top of the frame, with the end of its movable rod facing vertically downward; a dust suppression cover connected between the movable rods of the lifting cylinder, with a circular material passage opening formed thereon, and the dust suppression cover slides up and down in the frame; a discharge pipe fixedly arranged on the top of the dust suppression cover and in a vertically concentric position with the material passage opening; a pipe joint passed through one side of the dust suppression cover, two of which are provided, the lower ends of the pipe joints both pass downward through the dust suppression cover, the front pipe joint is provided with a straight exhaust filter, and the rear dust suppression cover is used to connect to an external air pressure control device; a lifting mechanism installed at the bottom of the frame.

[0007] Further explanation, the straight exhaust filter element includes a shell, which is connected to the pipe joint on the front side, and is hollow inside. A plurality of exhaust ports are opened on the shell, and no less than four arc-shaped cavities are provided on the upper part; a top cover is fixedly arranged on the top of the shell to seal the shell; a flexible filter membrane is vertically installed inside the shell, and an annular ring connected to the inner wall of the shell is provided on the outer side of the lower part, and the lower end of the flexible filter membrane is set to an open shape, and the interior is connected to the air inlet joint; a rotary cover is arranged on the upper inner part of the shell, and a number of protrusions consistent with the arc-shaped cavities are provided on it, and the protrusions slide in the arc-shaped cavities. When the cover slides inside the shell, under the guidance of the arc-shaped cavity, the rotary cover will rotate a certain angle inside the shell, and the bottom of the rotary cover is connected to the top of the flexible filter membrane. The rotary cover separates the shell from the internal space of the top cover, and has good sealing performance; energy storage springs are arranged along the inner path of the arc-shaped cavity, the number of energy storage springs is consistent with the arc-shaped cavity, and the top ends are connected to the rotary cover; an air inlet joint is passed through the top cover, and the internal space of the top cover is connected. When gas enters the top cover from the air inlet joint, the gas will push the rotary cover to rotate downward along the arc-shaped cavity, and the rotary cover squeezes and distorts the flexible filter membrane downward.

[0008] Further description: floating joints are provided at the ends of the movable rods of the lifting cylinders to connect with the dust suppression covers.

[0009] Further description, the lifting mechanism includes a main frame, which is slidably arranged at the lower part of the frame; a guide rail, which is vertically arranged at the lower part of the frame; a lifting cylinder, which is installed at the lower part of the main frame, and is provided with two, which are respectively arranged on the left and right sides of the main frame, and its movable rod is connected to the upper part of the frame to drive the frame to lift and lower.

[0010] Further description, it also includes a dustproof cover, which is sleeved on the outer periphery of the movable rod of the lifting cylinder, and the upper and lower ends are respectively connected to the frame and the dust suppression cover.

[0011] Further description, it also includes a sealing gasket installed at the bottom of the dust suppression cover.

[0012] Further description, it also includes a discharge pipe, which is installed on the inner side of the feed pipe, the upper port is consistent with the size and height of the inner circle of the feed pipe, and the lower port is inclined; a fixed seat, which is fixedly set at the bottom of the dust suppression cover; a progressive discharge plate, which is rotatably installed on the fixed seat, and consists of a circular cover plate and an inclined plate; a hydraulic cylinder, which is rotatably set at the bottom of the dust suppression cover, and its hydraulic rod is connected to the inclined plate of the progressive inclined plate. When the hydraulic rod of the hydraulic cylinder is fully extended, it will push the circular cover plate of the progressive discharge plate to completely close the lower port of the discharge pipe; an arc spring, which is set on the inclined plate of the progressive discharge plate, and the other end of which is connected to the fixed seat.

[0013] Further description, it also includes a support member, which is fixedly arranged on the outside of the frame; a swing arm, which is rotatably arranged at one end of the inner side of the support member; a water receiving bucket, which is arranged at the end of the swing arm and has a drain pipe at the lower part; an electric control valve, which is installed on the drain pipe of the water receiving bucket, and controls the opening and closing of the internal pipeline of the drain pipe; a rotary push cylinder, which is rotatably arranged on one end of the support member away from the swing arm, and one end of its push rod is hinged to the swing arm, driving the swing arm to rotate on the support member, and the water receiving bucket swings in an arc as the swing arm rotates.

[0014] Further description, the water receiving bucket is conical in shape, and a plurality of drainage grooves are evenly spaced on its inner wall.

[0015] Further description, it also includes a sedimentation box, which is horizontally arranged between the front parts of the main frame, and a liquid receiving port is opened on the top of the sedimentation box, and the liquid receiving port is opened at a position below the rotation path of the water receiving bucket; a filter plate is horizontally arranged inside the sedimentation box to divide the interior of the sedimentation box into two upper and lower spaces; a cover opening cylinder is installed on the sedimentation box, and its movable rod is on the same horizontal line as the liquid receiving port; a shield plate is slidably arranged at the liquid receiving port of the sedimentation box to shield the liquid receiving port, and one end is fixedly connected to the movable rod of the cover opening cylinder, and is driven by the cover opening cylinder to move horizontally left and right; a drain pipe is arranged on one side of the sedimentation box, and two drain pipes are provided, which respectively connect the upper and lower spaces inside the sedimentation box divided by the filter plate.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention uses a flexible pipe to connect the centrifuge with a dust suppression cover connected to the material frame. When the centrifuge is unloading, the material receiving device is closed by the dust suppression cover. When unloading, the interior of the material receiving device is in a closed state. In combination with a direct exhaust filter and an externally connected pressure control device, the falling powder is effectively reduced when the bottom-discharging centrifuge is unloading, and the powder is scattered and floated outside the material receiving device, thereby effectively reducing the material loss caused by dust and the impact on the on-site working environment.

[0017] 2. The present invention sets a direct exhaust filter element without connecting pipelines. When the dust suppression cover closes the receiving device for unloading, the gas compressed in the internal space of the receiving device is directly squeezed out, effectively avoiding the condensation of droplets and adhesion of precipitated waste residues at the bends of the pipe when using a conventional exhaust structure. At the same time, by setting the interior of the filter element to an automatic cleaning structure, the internal filter membrane is intermittently self-cleaned, reducing the frequency of manual disassembly and cleaning, and reducing maintenance costs.

[0018] 3. The present invention provides a gradual feeding mechanism at the feeding pipe to block and control the flow of materials into the receiving device during feeding, so as to avoid that when the materials in the centrifuge are discharged in a concentrated manner, the excessive height difference causes the materials to have a large impact on the hopper of the receiving device, arouses a large amount of dust, and instantly squeezes the closed internal space of the receiving device, causing a large load and impact on the receiving device, resulting in a shortened service life of the receiving device. The gradual feeding mechanism can effectively protect the receiving device, reduce the generation of dust, and protect the material from impact damage.

[0019] 4. The present invention provides a wastewater receiving mechanism to receive the liquid that falls into the receiving device during the centrifuge startup stage and the centrifugal force reduction stage of the centrifuge, thereby preventing the liquid from falling into the receiving device or the on-site working area and causing pollution to the receiving device and the on-site working area. A sedimentation and filtration mechanism is also provided to filter and reuse the received mixed liquid to reduce material loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 The figure is a schematic diagram of the three-dimensional structure of the present invention without the water receiving mechanism and the sedimentation filtering mechanism.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the dust suppression component of the present invention.

[0023] Figure 4 This is a disassembly diagram of the straight-discharge filter element of the present invention.

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the dust suppression component and the gradual discharge mechanism of the present invention.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the gradual feeding mechanism of the present invention.

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the water receiving mechanism and the filtering mechanism of the present invention.

[0027] Figure 8 It is a three-dimensional structural schematic diagram of the water receiving mechanism of the present invention.

[0028] Fig. 9 It is a cross-sectional view of the sedimentation filtration mechanism of the present invention.

[0029] In the above figures: 1: frame, 2: lifting cylinder, 3: floating joint, 4: dust suppression cover, 5: feed pipe, 6: pipe joint; 7: straight exhaust filter, 71: housing, 72: flexible filter membrane, 73: energy storage spring, 74: screw cap, 75: top cover, 76: air inlet connector; 8: main frame, 81: lifting cylinder, 82: guide rail; 9: discharge pipe, 91: fixed seat, 92: progressive discharge plate, 93: hydraulic cylinder, 94: arc spring, 10: support, 101: swing arm, 102: water receiving bucket, 103: electric control valve, 104: rotary push cylinder, 105: drainage groove; 11: sedimentation box, 111: opening cylinder, 112: shield plate, 113: drain pipe, 114: filter plate, 12: dustproof cover, 13: sealing gasket. DETAILED DESCRIPTION

[0030] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0031] A dust suppression device for unloading precursor materials after centrifugal dehydration, such as Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, it includes a frame 1, which is welded by a number of square rods that cross each other horizontally and vertically, and a vertical support leg is welded at the bottom. The inner area between the support legs is used to place a customized receiving device for receiving materials. The height of the frame 1 support legs is determined by the receiving device. When in use, the frame 1 is placed below the discharge port of a bottom-discharging centrifuge, and the receiving device is placed in the area between the lower part of the frame 1. Four lifting cylinders 2 are vertically installed on the four corners of the frame 1, and the movable rods of the lifting cylinders 2 are vertically downward, and a dust suppression cover 4 that can close the upper opening of the receiving device is connected to the ends of the movable rods of the four lifting cylinders 1 through floating joints 3. The lower part of the dust suppression cover 4 is consistent with the shape and size of the upper feed opening of the receiving device, wherein a circular hole for passing materials is opened on the dust suppression cover 4, and a feeding pipe 5 is arranged concentrically with the circular hole for passing materials at the top of the dust suppression cover 4. The feeding pipe 5 is used to install a connection with the feeding port of the centrifuge The pipeline should be flexible to prevent the vibration of the centrifuge from being transmitted to the frame 1 and its related parts during operation. Driven by the lifting cylinder 2, the dust suppression cover 4 moves up and down in the frame 1. When the movable rod of the lifting cylinder 1 is fully extended, the dust suppression cover 4 will completely close the material receiving device. The lower edge of the dust suppression cover 4 is provided with a sealing gasket 13 that matches the inner wall of the material receiving device container. When the dust suppression cover 4 closes the material receiving device, the edges of the joints between the two are in a state of high fit. A lifting mechanism is provided at the bottom of the frame 1. The lifting mechanism consists of two symmetrically arranged main frames 8, a lifting cylinder 81 installed on the main frame 8, and a guide rail 82 connected to the support foot of the frame 1. The frame 1 slides up and down in the main frame 8 through the guide rail 82. The overall height of the frame 1 is adjustable by adjusting the lifting cylinder 81. When in use, material receiving devices of different heights can be provided accordingly, and can be flexibly adjusted according to needs. Among them, the connecting piece between the movable rod of the lifting cylinder 2 and the floating joint 3 is hinged. When the material receiving device at the lower part of the dust suppression cover 4 completes the loading, the movable rods of the two lifting cylinders 2 on the front side are controlled to rise first, and the front part of the dust suppression cover 4 is lifted on the material receiving device first, so as to form a gap for the outside air to enter between the material receiving device and the dust suppression cover 4. Through the flexible compensation of the hinged floating joint 3, the dust suppression cover 4 is allowed to deflect at a certain degree to adapt to the tilt during operation. Then, the two lifting cylinders 2 on the rear side are controlled to lift the rear part of the dust suppression cover 4, and the closed space is opened by tilting, so as to slowly release the pressure inside the container, so as to balance the internal and external pressures, and avoid the airflow surging at the moment of opening the cover, which may cause a large amount of powder to be entrained and rushed out. Figure 1 and Figure 7 The movable rod of the lifting cylinder 2 and the floating joint 3 are wrapped with a dustproof cover 12, which can adapt to the length change of the movable rod of the lifting cylinder 2 during the movement and protect the moving parts from dust and dirt.

[0032] Among them, Figure 1-5As shown, two pipe joints 6 are provided on one side of the dust suppression cover 4, one of which is used to connect to an external pressure balancing device. When the dust suppression cover 4 closes the material receiving device and during the material filling or discharging process, the connected pressure balancing device can quickly respond to the pressure change in the material receiving device and automatically adjust to reduce the material overflow or interruption caused by the sudden pressure change in the material receiving device, so that the material receiving process is smoother and more continuous; a straight-discharge filter element 7 is provided on the other pipe joint 6, and the straight-discharge filter element 7 is composed of a shell 71 connected to the pipe joint 6 to play a protective role, and the inside of the shell 71 is connected to the material receiving device through the pipe joint. The function of the straight-discharge filter element 7 is: in the process of filling the receiving device with powder or granular material, there may be gas compressed or the gas carried by the material needs to be released. The straight-discharge filter element 7 can discharge these gases in time to prevent the safety hazard caused by pressure accumulation, which may cause the container to deform or the seal to fail. Different from the conventional exhaust filter assembly, the straight-discharge filter element 7 is not connected to the exhaust filter device through a bent pipe, but directly filters and discharges the gas, avoiding the condensation of droplets and the adhesion of precipitated waste residues at the bend of the pipe when using the conventional exhaust structure, which may cause blockage and corrosion of the exhaust channel. Figure 4 The flexible filter membrane 72 is in the shape of a vertical cylinder, and the lower part is fixedly connected to the inner wall of the shell 74. While maintaining the overall structure from being damaged, it can be squeezed and twisted to a certain extent. The filtration accuracy of the flexible filter membrane 72 is 0.25μm. A top cover 75 is provided on the top of the shell 71 to close the shell 71. The upper part of the shell 71 is provided with a plurality of arc-shaped cavities arranged evenly at intervals. The plurality of arc-shaped cavities form a spiral guide channel. A screw cover 74 whose bottom is connected to the top of the flexible filter membrane 72 is provided in the upper part of the shell 71. The screw cover 74 is provided with protrusions that are the same as the number of arc-shaped cavities. The shapes of these protrusions are consistent with the internal shape of the arc-shaped cavities, and the screw cover 74 can be moved along the arc-shaped cavities in the shell 7. 1, during the sliding process of the rotary cover 74, the arc-shaped cavity guides the rotary cover 74 to rotate at a certain angle, and the cylindrical flexible filter membrane 72 connected to the rotary cover 74, when the rotary cover 74 slides downward, the cylindrical membrane surface will be squeezed and twisted as a whole, and the arc-shaped cavity is provided with an energy storage spring 73 with a top end connected to the rotary cover 74, and an air intake joint 76 is penetrated on the top cover 75, and the lower part of the air intake joint 76 passes through the top cover 75. The air intake joint 76 is used to connect the external compressed gas, and the compressed gas passage entering the air intake joint should be equipped with an air flow control valve to control the gas to enter the top cover 75 at a certain interval, and after entering, the exhaust work is quickly performed; When the straight-discharge filter element 7 is exhausted, the dust carried by the airflow will be blocked by the flexible filter membrane 72. After a period of time, a large amount of dust will be deposited inside the flexible filter membrane 72. The screw cap 74 separates the housing 71 from the internal space of the top cover 75. The edge of the screw cap 74 fits tightly with the inner wall of the housing 71 and has good sealing performance. When the external compressed gas is connected from the air inlet connector 76, the gas will accumulate in the upper space of the screw cap 74 in a short time. After a certain pressure is formed, the energy storage spring 73 begins to be compressed and accumulates energy, and the screw cap 74 moves to The flexible filter membrane 72 is squeezed and distorted by the movement of the cover 74 downward and rotates to a certain extent, squeezing and twisting the flexible filter membrane 72. The airflow entering the air inlet joint 76 stops the air intake and starts to exhaust under the action of the control valve. The rotary cover 74 is quickly reset under the push of the compressed energy storage spring 73 without the squeezing force of the gas, pulling the flexible filter membrane 72 to recover quickly. The powder adhered to the flexible filter membrane 72 is peeled off and separated from the flexible filter membrane 72 under the multiple forces of the deformation and rapid recovery of the membrane surface, thereby realizing the self-cleaning function of the in-line filter element 7.

[0033] like Figure 5-6 As shown, it also includes a gradual feeding mechanism arranged at the feed pipe 5 to control the instantaneous discharge amount of the centrifuge. The gradual feeding mechanism includes a discharge pipe 9 embedded in the feed pipe 5. The pipe opening at the upper end of the discharge pipe 9 is flush with the pipe opening at the upper end of the feed pipe 5, and the end face of its lower port is inclined. A fixed seat 91 is fixedly provided at the bottom of the dust suppression cover 4 near the discharge pipe. A progressive discharge plate 92 is rotatably provided in the fixed seat 91. The progressive discharge plate 92 consists of a circular cover plate that can completely close the lower port of the discharge pipe 9, and an inclined plate that drives the circular cover plate to rotate. An arc spring 94 is connected to the upward side of the inclined plate, and the other end of the arc spring 94 is connected to the fixed seat. Under the use, one end of the inclined plate of the progressive discharge plate 92 is squeezed downward, so that the circular cover plate of the progressive discharge plate 92 is in a state of closing the lower end of the discharge pipe 9. At this time, when the material falls into the discharge pipe, it will be blocked by the gradual discharge plate 92. The purpose of the inclined setting of the lower end of the discharge pipe 9 is to make the materials accumulated on the progressive discharge plate 92 present a certain inclination angle when the gradual discharge plate 92 is closed. When the progressive discharge plate 92 is opened, it is ensured that the materials slide down smoothly by gravity to avoid accumulation. The bottom of the dust suppression cover 4 is hingedly provided with a hydraulic cylinder 93. The hydraulic rod of the hydraulic cylinder 93 is connected to the end of the inclined plate of the progressive discharge plate 92, and the opening and closing state of the progressive discharge plate 92 is controlled by the hydraulic cylinder 93. Specifically, when the centrifuge completes the dehydration work and unloads, the materials in the centrifuge will be discharged in a concentrated manner. If these materials are discharged into the receiving device in large quantities through a flexible pipe, the large material drop difference plus the large material drop amount will produce a huge impact on the inside of the closed receiving device and cause a large impact load, and accelerate the wear of the receiving device. The falling materials are blocked by the set gradual feeding mechanism, and the rotation angle of the progressive unloading plate 92 is controlled by the hydraulic cylinder 93 to control the opening size of the discharge port of the unloading pipe 9, thereby controlling the flux of the material falling into the receiving device.

[0034] like Figure 1 , Figure 7 , Figure 8 and Fig. 9 As shown, a support member 10 is provided at the front of the frame 1, and a swing arm 101 is rotatably provided at one end of the support member 10. A water receiving bucket 102 is fixedly connected to the end of the swing arm 101. The water receiving bucket 102 is arranged in a funnel shape, and an electric control valve 103 is provided on the outer wall of the discharge port at the lower part thereof. The valve flap of the electric control valve 103 is located on the inner side of the lower part of the water receiving bucket 102. The channel at the discharge port of the water receiving bucket 102 is controlled by the electric control valve 103. A rotary push cylinder 104 is rotatably provided on the inner side of the other end of the support member 10. The rotary push cylinder 104 is rotated to push the rotary push cylinder 104. The push rod end of 04 is hinged with the swing arm 101, and the swing arm 101 is pushed to swing by the rotating push cylinder 104, thereby driving the water receiving bucket 102 to swing in an arc. When the push rod of the rotating push cylinder 104 is fully extended, the water receiving bucket 102 is pushed into the frame 1. At this time, the water receiving bucket 102 is located below the concentric part of the feed pipe 5. When the liquid falls from the feed pipe 5, it will fall into the water receiving bucket 102. When the push rod of the rotating push cylinder 104 is fully retracted, the water receiving bucket 102 will be located outside the frame 1 without interfering The dust suppression cover 4 is raised and lowered in the area; specifically, during the dehydration process of the centrifuge, the centrifugal force of the centrifuge decreases during the startup stage and the gradual stop stage of the centrifuge. When part of the liquid mixed in the material cannot be thrown to the discharge area of ​​the centrifuge due to insufficient inertia, it will fall down into the flexible pipe along the discharge pipe of the centrifuge, and fall into the material receiving device through the feed pipe 5. At this stage, the electric control valve 103 can lift the frame 1 through the lifting mechanism to drive the water receiving bucket 102 and the like. The component rises so that when the water receiving bucket 102 rotates, it will not collide with the material receiving device. Then, the rotary arm 101 is driven to rotate by rotating the push cylinder 104, driving the water receiving bucket 102 to rotate to the bottom of the feed pipe 5 to receive the falling liquid. After completing the liquid receiving, the water receiving bucket 102 is turned outward. A plurality of drainage grooves 105 are opened in the water receiving bucket 102. When the water receiving bucket 102 is draining, the liquid can be discharged from the water receiving bucket 102 as much as possible through the drainage grooves 105, thereby reducing the liquid residue on the inner wall of the water receiving bucket 102.

[0035] Among them, Figure 1 , Figure 7and Fig. 9 As shown, a sedimentation box 11 is fixedly provided between the front sides of the main frame 8, and a liquid receiving port is provided on the top surface of the sedimentation box 11. The liquid receiving port is provided at the extreme position of the rotation path of the water receiving bucket 102, corresponding to the position of the liquid discharge port of the water receiving bucket 102 when stopped. A shield plate 112 is slidably provided at the liquid receiving port on the sedimentation box 11, and an opening cylinder 111 is installed on the sedimentation box 11, and its movable rod and the shield plate 112 are on the same horizontal line. The movable rod of the opening cylinder 111 is connected to the end of the shield plate 112, driving the shield plate 112 to slide left and right on the sedimentation box 11, and the shield plate 112 is used to shield the liquid receiving port of the sedimentation box to reduce the amount of debris falling into the sedimentation box 11 from the outside. Specifically, when the rotating push cylinder 104 moves the water receiving bucket 102 forward to the extreme position, the liquid discharge pipe of the water receiving bucket 102 The liquid receiving port of the sedimentation tank 11 will be directly opposite to the liquid receiving port. After the cover opening cylinder 112 is controlled to remove the baffle 114, the electric control valve 103 controls the drainage pipe port of the water receiving bucket 102 to open, and the liquid received in the water receiving bucket 102 will be discharged into the liquid receiving port. A filter plate 114 is provided inside the sedimentation tank 11. The filter plate 114 is horizontally arranged inside the sedimentation tank 11 to divide the interior of the sedimentation tank 11 into two upper and lower spaces. The material entering the sedimentation tank 11 will be blocked by the filter plate 114, and the liquid will be separated into the space at the lower part of the sedimentation tank 11. Two normally closed drain pipes 113 are provided on one side of the sedimentation tank 11. The two drain pipes 113 are respectively connected to the upper and lower spaces inside the sedimentation tank 11 divided by the filter plate 114, so as to separate and discharge the filtered liquid and the blocked material-containing liquid.

[0036] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A dust suppression device for unloading precursor materials after centrifugal dehydration, comprising a frame; Its characteristics are: It also includes a lifting cylinder (2) arranged on the four corners of the top of the frame (1), with the end of the movable rod facing vertically downward; a dust suppression cover (4) connected between the movable rods of the lifting cylinder (2), with a circular material passage opening formed thereon, and the dust suppression cover (4) sliding up and down in the frame (1); a feed pipe (5) fixedly arranged on the top of the dust suppression cover (4) and in a vertically concentric position with the material passage opening; a pipe joint (6) penetrating one side of the dust suppression cover (4), two of which are provided, the lower ends of the pipe joints (6) both pass through the dust suppression cover (4) downward, the front pipe joint (6) is provided with a straight exhaust filter (7), and the rear dust suppression cover (4) is used to connect to an external air pressure control device; and a lifting mechanism installed at the lower part of the frame (1).

2. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 1, characterized in that: The straight exhaust filter element (7) comprises a shell (71) connected to the pipe joint (6) at the front side, the interior of which is hollow, a plurality of exhaust ports are opened on the shell (71), and at least four arc-shaped cavities are arranged on the upper part thereof; a top cover (75) fixedly arranged on the top of the shell (71) to seal the shell (71); a flexible filter membrane (72) vertically installed inside the shell (71), an annular ring connected to the inner wall of the shell (71) is arranged on the outer side of the lower part, the lower end of the flexible filter membrane (72) is arranged in an open shape, and the interior is connected to the air inlet joint (76); a rotary cover (74) is arranged on the upper part of the shell (71), and a number of protrusions are arranged on the shell that is consistent with the number of arc-shaped cavities, the protrusions slide in the arc-shaped cavities, and the rotary cover (74) is arranged on the shell (71). When sliding inside, under the guidance of the arc-shaped cavity, the rotary cover (74) rotates a certain angle inside the shell (71), and the bottom of the rotary cover (74) is connected to the top of the flexible filter membrane (72). The rotary cover (74) separates the shell (71) from the internal space of the top cover (75), and has good sealing performance. Energy storage springs (73) are arranged along the inner path of the arc-shaped cavity, and the number of energy storage springs is consistent with the arc-shaped cavity, and the top ends are connected to the rotary cover (74). An air inlet joint (76) is inserted into the top cover (75), and the internal space of the top cover (75) is connected. When gas enters the top cover (75) from the air inlet joint (76), the gas pushes the rotary cover (74) to rotate downward along the arc-shaped cavity, and the rotary cover (74) presses and twists the flexible filter membrane (72) downward.

3. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 2, characterized in that: The ends of the movable rods of the lifting cylinders (2) are each provided with floating joints (3) connected to the dust suppression covers (4).

4. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 3, characterized in that: The lifting mechanism comprises a main frame (8) slidably arranged at the lower part of the frame (1); a guide rail (82) vertically arranged at the lower part of the frame (1); and a lifting cylinder (81) installed at the lower part of the main frame (8). Two lifting cylinders (81) are provided, which are arranged at the left and right sides of the main frame (8) respectively, and whose movable rods are connected to the upper part of the frame (1) to drive the frame (1) to perform lifting and lowering actions.

5. A dust suppression device for unloading precursor materials after centrifugal dehydration according to claim 4, characterized in that: It also includes a dustproof sleeve (12) which is sleeved around the outer periphery of the movable rod of the lifting cylinder (2), and the upper and lower ends of which are respectively connected to the frame (1) and the dust suppression cover (4).

6. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 5, characterized in that: It also includes a sealing gasket (13) installed at the bottom of the dust suppression cover (4).

7. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 6, characterized in that: It also includes a discharge pipe (9) mounted on the inner side of the feed pipe, the upper end of which is consistent with the size and height of the inner circle of the feed pipe, and the lower end of which is inclined; a fixed seat (91) fixedly mounted on the bottom of the dust suppression cover (4); a progressive discharge plate (92) rotatably mounted on the fixed seat (91), and composed of a circular cover plate and an inclined plate; a hydraulic cylinder (93) rotatably mounted on the bottom of the dust suppression cover (4), and its hydraulic rod is connected to the inclined plate of the progressive inclined plate. When the hydraulic rod of the hydraulic cylinder (93) is fully extended, it pushes the circular cover plate of the progressive discharge plate (92) to completely close the lower end of the discharge pipe (9); and an arc spring (94) arranged on the inclined plate of the progressive discharge plate (92), and the other end of the arc spring is connected to the fixed seat (91).

8. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 7, characterized in that: It also includes a support member (10) fixedly arranged on the outside of the frame (1); a swing arm (101) rotatably arranged at one end of the inner side of the support member (10); a water receiving bucket (102) arranged at the end of the swing arm (101) and having a drainage pipe at the lower part; an electric control valve (103) installed on the drainage pipe of the water receiving bucket (102) to control the on and off of the internal pipeline of the drainage pipe; and a rotary push cylinder (104) rotatably arranged on one end of the support member (10) away from the swing arm (101), one end of the push rod of the rotary push cylinder being hinged to the swing arm (101) to drive the swing arm (101) to rotate on the support member (10), and the water receiving bucket (102) swings in an arc as the swing arm (101) rotates.

9. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 8, characterized in that: The water receiving bucket (102) is conical in shape, and a plurality of drainage grooves (105) are evenly spaced on its inner wall.

10. A dust suppression device for discharging precursor materials after centrifugal dehydration according to claim 9, characterized in that: It also includes a sedimentation box (11), which is horizontally arranged between the front parts of the main frame (8); a liquid receiving port is opened on the top of the sedimentation box (11), and the liquid receiving port is opened at a position below the rotation path of the water receiving bucket (102); a filter plate (114) is horizontally arranged inside the sedimentation box (11) to divide the inside of the sedimentation box (11) into two upper and lower spaces; a cover opening cylinder (111) is installed on the sedimentation box (11), and its movable rod is on the same horizontal line as the liquid receiving port; a shielding plate (112) is slidably arranged at the liquid receiving port of the sedimentation box (11) to shield the liquid receiving port, one end of which is fixedly connected to the movable rod of the cover opening cylinder (111) and is driven by the cover opening cylinder (111) to move horizontally to the left and right; and a liquid discharge pipe (113) is arranged on one side of the sedimentation box (11), and two liquid discharge pipes (113) are provided, which respectively connect the upper and lower spaces in the sedimentation box (11) divided by the filter plate (114).

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