A centrifuge feeding compression device

Abstract

The present invention discloses a centrifuge feeding compression device, including a feeding valve assembly and a spiral pressing assembly, the upper end of the feeding valve assembly is fixedly connected with the spiral pressing assembly, the upper end of the spiral pressing assembly is connected to a thickener, the discharge end of the feeding valve assembly is connected with a feeding pipe, the end of the feeding pipe is connected to a centrifuge, the feeding valve assembly includes a stirring component and a discharge valve component, the upper end of the stirring component is connected to the spiral pressing assembly, the upper end side circumferential surface of the stirring component is provided with at least one discharge valve component, and the discharge valve component is connected to the feeding pipe. The purpose of the present invention is to provide a centrifuge feeding compression device with high efficiency and anti-clogging, to ensure that materials enter the centrifuge at a stable rate and pressure for separation operation, thereby greatly improving the efficiency and effect of the centrifugal separation process.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuge feeding equipment, in particular to a centrifuge feeding compression device. Background Art

[0002] In the chemical process, centrifuges are widely used to separate various mixtures. However, in order to ensure the efficient operation of the centrifuge, the design and configuration of the material feeding system are crucial. Traditional feeding systems face many challenges in practical applications, including material sedimentation, agglomeration, and uneven feeding.

[0003] Continuous centrifuges (such as piston push centrifuges or spiral filter centrifuges) have high requirements for the solid content of the feed suspension, generally requiring a solid content of no less than 30%. In order to meet this requirement, a static thickener is usually configured upstream of the centrifuge. The static thickener uses the difference in specific gravity between solids and liquids in the suspension to allow the solids to settle naturally and the liquid to be discharged through the overflow pipe. However, this configuration has the following problems in actual operation:

[0004] 1. Bottom blockage: Solids are deposited at the bottom of the thickener, which can easily block the discharge hole, causing equipment operation interruption and maintenance difficulties.

[0005] 2. Decreasing solid content: The solid content of the suspension inside the thickener gradually decreases from the bottom to the top, so that although the solid content at the bottom is high, the solid content at the top is low, making it difficult to maintain continuous and efficient operation of the centrifuge. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a high-efficiency anti-clogging centrifuge feeding compression device to solve the problems of material sedimentation, agglomeration and uneven feeding in the traditional feeding system, and ensure that the material enters the centrifuge at a stable rate and pressure for separation operation, thereby greatly improving the efficiency and effect of the centrifugal separation process.

[0007] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a centrifuge feeding compression device, including a feeding valve assembly and a spiral pressing assembly, the upper end of the feeding valve assembly is fixedly connected to the spiral pressing assembly, the upper end of the spiral pressing assembly is connected to the thickener, the discharge end of the feeding valve assembly is connected to the feeding pipe, the end of the feeding pipe is connected to the centrifuge, when in use, first, the thickener performs preliminary concentration treatment on the original material, the concentrated material is spirally extruded to the feeding valve assembly through the spiral pressing assembly, and then introduced into the feeding pipe through the feeding valve assembly, and finally the material is transported to the centrifuge through the feeding pipe for separation treatment, the feeding valve assembly includes a stirring component and a discharge valve component, the upper end of the stirring component is connected to the spiral pressing assembly, the upper end side circumferential surface of the stirring component is provided with at least one discharge valve component, the discharge valve component is connected to the feeding The material is connected to the tube. In the present invention, during the initial concentration treatment of the original material by the thickener, the material first enters the stirring component from the spiral channel of the spiral pressing component (at this time, the stirring component continuously stirs the material entering the interior, but the spiral blades in the spiral pressing component are in a stationary state, and a spiral channel is formed between the spiral blades and the inner wall of the discharge pipe). By continuous stirring (at this time, the stirring component rotates clockwise), the material has continuous fluidity to avoid sedimentation and agglomeration leading to blockage of the feeding device. When the material needs to be discharged, the discharge valve component is opened from the closed state (at the same time, the stirring component switches from clockwise rotation to counterclockwise rotation), and the spiral pressing component squeezes the material into the stirring component through the rotation of the spiral blades. Under the action of pressure, the material can flow through the discharge valve component into the feeding pipe, and then enter the centrifuge from the feeding pipe for centrifugal operation;

[0008] The spiral pressing assembly includes a first flange, a feed pipe, a rotating shaft, a spiral blade, a support rod, a first rotating shaft sleeve, a first mounting sleeve, a first one-way bearing, and a first sealing cover, wherein the first flange is connected to the upper end of the stirring component, the middle part of the upper end of the first flange is fixedly connected to the feed pipe, the upper end of the feed pipe is connected to the lower end of the thickener, the feed pipe is divided into a conical tube and a circular tube, wherein a spiral blade is rotatably connected in the conical tube, the spiral blade is fixedly connected to the rotating shaft, the lower end of the rotating shaft is transmission-connected to the stirring component, the upper end of the rotating shaft is rotatably connected in the first rotating shaft sleeve, a plurality of support rods are fixedly connected to the outer peripheral side surface of the first rotating shaft sleeve, the other end of the support rods are respectively connected to the inner wall of the circular tube, the upper end of the first rotating shaft sleeve is fixedly connected to the first mounting sleeve, the first one-way bearing is fixedly connected in the first mounting sleeve, the inner ring of the first one-way bearing is fixedly connected to the rotating shaft, and the upper end of the first mounting sleeve is fixedly connected to the first sealing cover.

[0009] A first sealing sleeve and a first sliding bearing are fixedly connected inside the first rotating shaft sleeve. The first sealing sleeve and the first sliding bearing are both sleeved on the rotating shaft. The first sliding bearing is located at one end close to the first mounting sleeve.

[0010] The stirring component includes a motor, a reducer, a coupling, a stirring shaft, a stirring paddle, a stirring shell, and an outer shell. The upper end of the motor is connected to the reducer, the upper end of the reducer is fixedly connected to the outer shell, the outer shell is rotatably connected with a coupling, the lower end of the coupling is connected to the output end of the reducer, and the other end of the coupling is connected to the stirring shaft. The upper end of the outer shell is fixedly connected to the stirring shell, the upper end of the stirring shaft is fixedly connected to the stirring paddle after passing through the stirring shell, the stirring paddle is rotatably connected in the stirring shell, the middle part of the stirring paddle is fixedly connected to a one-way transmission component, the one-way transmission component is connected to the rotating shaft, the upper end of the stirring shell is fixedly connected to a second flange, and the second flange is fixedly connected to the first flange by bolts.

[0011] The one-way transmission assembly includes a rotating block, a second mounting sleeve, a second one-way bearing, a second rotating shaft sleeve, a second sealing sleeve, and a second sliding bearing. After the stirring shaft passes through the stirring shell, it is fixedly connected to the rotating block. A plurality of stirring paddles are fixedly connected to the outer peripheral side of the rotating block. The upper end of the rotating block is fixedly connected to the second mounting sleeve. A second one-way bearing is fixedly connected in the second mounting sleeve. The inner ring of the second one-way bearing is fixedly connected to the rotating shaft. After the rotating shaft passes through the second mounting sleeve, it is rotatably connected in the second rotating shaft sleeve. The second rotating shaft sleeve is fixedly connected to the upper end of the second mounting sleeve. A second sealing sleeve and a second sliding bearing are fixedly connected in the second rotating shaft sleeve. The second sealing sleeve and the second sliding bearing are both sleeved on the rotating shaft. The second sliding bearing is located at one end close to the second mounting sleeve.

[0012] A first shaft sleeve is fixedly connected to the middle of the lower end of the stirring shell, and the stirring shaft is rotatably connected in the first shaft sleeve. Two groups of annular grooves are opened in the first shaft sleeve, and third sealing sleeves are respectively fixedly connected in the annular grooves. The third sealing sleeves are respectively sleeved on the stirring shaft.

[0013] An isolation plate is fixedly connected inside the outer shell, a second shaft sleeve is fixedly connected to the middle of the isolation plate, a fourth sealing sleeve and a third sliding bearing are fixedly connected inside the second shaft sleeve, both the fourth sealing sleeve and the third sliding bearing are sleeved on the stirring shaft, the third sliding bearing is located below the fourth sealing sleeve, an overflow pipe is fixedly connected to one side of the lower end of the isolation plate, and the other end of the overflow pipe passes through to the outside of the outer shell.

[0014] The discharge valve component includes a valve sleeve, a connector, an end cover, a shaft head positioning assembly, an actuator, a valve stem, a valve plate, and a valve sheet. The outer peripheral side of the stirring shell is fixedly connected to the connector, one end of the valve sleeve is sleeved on the connector and sealed and fixed to the connector, a discharge pipe is fixedly connected to the outer side wall of the lower end of the valve sleeve, and the discharge pipe is connected to the feeding pipe, the other end of the valve sleeve is fixedly connected to the end cover, one side of the end cover is fixedly connected to a dust cover, the middle part of the outer end of the dust cover is fixedly connected to an actuator, the actuator is connected to one end of the valve stem, and the other end of the valve stem is inserted into the valve sleeve and connected to the connector. The connecting body is rotatably connected, a valve plate is fixedly connected to the valve stem on one side of the connecting body, a valve sheet is fixedly connected to the valve plate on one side of the connecting body, the valve sheet is in contact with the connecting body, a first discharge channel runs through the connecting body, a second discharge channel is provided on the valve plate and the valve sheet, the second discharge channel is opposite to or staggered with the first discharge channel, a fifth sealing sleeve and a fourth sliding bearing are respectively fixedly connected in the central hole of the end cover plate, the fifth sealing sleeve and the fourth sliding bearing are both sleeved on the valve stem, a shaft head positioning assembly is provided on the valve stem in the dust cover, and the shaft head positioning assembly and the end cover plate are fixedly connected to each other.

[0015] The shaft head positioning assembly includes a spacer sleeve, a positioning plate, a sliding sleeve, a bearing seat, a rolling bearing, a round nut, a shaft cover plate, a first oil seal, a second oil seal, and a hexagonal bolt. A plurality of through holes are opened on the edge of the positioning plate, and a plurality of bolt holes are opened on the outer side surface of the end cover plate. The hexagonal bolts pass through the through holes and the spacer sleeves in sequence and are threadedly connected with the bolt holes. A sliding sleeve is rotatably connected to the middle part of the positioning plate, and the sliding sleeve is sleeved on the valve stem. A first oil seal is connected between the sliding sleeve and the positioning plate. A bearing seat is connected to one side of the positioning plate, and a rolling bearing is fixedly connected to the inside of the bearing seat. The second shaft sleeve is pipe-connected to the valve stem, and one side of the rolling bearing is in conflict with the sliding sleeve, and the other side of the rolling bearing is in conflict with the round nut. The round nut is threadedly connected to the valve stem. A shaft cover plate is fixedly connected to one side of the outer end of the bearing seat, and a second oil seal is arranged between the shaft cover plate and the valve stem.

[0016] An outer side wall of the upper end of the valve sleeve shell is fixedly connected with an external joint, and a plug is threadedly connected to the external joint.

[0017] The valve sheet is made of corrosion-resistant non-metallic material and is fixed to the valve plate by screws. A positioning pin is fixedly connected to the connecting block on one side of the first discharge channel, and the positioning pin is movably connected to the second discharge channel.

[0018] Beneficial effects of the present invention:

[0019] 1. Anti-blocking design:

[0020] 1. The setting of the stirring component and the discharge valve component effectively prevents the material from settling and clogging at the bottom of the thickener. The stirring component continuously stirs the incoming material to ensure that the material maintains fluidity and avoids clogging of the discharge hole.

[0021] 2. Through the synergistic effect of the spiral extrusion and stirring components of the spiral pressing assembly, the material with high solid content can smoothly pass through the discharge valve component into the feeding pipe, thereby ensuring the continuous operation of the centrifuge;

[0022] 2. Increased solid content:

[0023] 1. The use of anti-clogging feeding valve can increase the solid content in the thickener to 50% or even higher, effectively meeting the high requirements of the centrifuge for the solid content of the feed, thereby improving the centrifugal separation effect and production capacity;

[0024] 2. By precisely controlling the material concentration and feeding process, the centrifuge can operate stably for a long time, reduce frequent interruptions and maintenance, and improve production efficiency;

[0025] 3. One-way drive connection structure:

[0026] 1. The stirring component and rotating shaft are designed with a one-way drive connection structure, so that the stirring shaft transmits power to the rotating shaft when it rotates counterclockwise, and does not transmit power when it rotates clockwise, ensuring the high efficiency and stability of the stirring process;

[0027] 2. Prevent materials from entering the one-way bearing and other key components, protect the equipment from damage and extend the service life of the equipment;

[0028] 4. Sealing structure:

[0029] 1. The sealing structure formed by the first rotating shaft sleeve and the first sealing sleeve, the second rotating shaft sleeve and the second sealing sleeve, the first shaft sleeve and the third sealing sleeve, and the second shaft sleeve and the fourth sealing sleeve can prevent material leakage and liquid erosion, ensuring the internal cleanliness of the equipment and the normal operation of the components;

[0030] 2. Multiple sealing designs effectively isolate materials and liquids, reduce maintenance requirements, and improve equipment reliability and durability;

[0031] 5. Efficient material transportation:

[0032] 1. Through the multi-step coordination of the spiral pressing assembly, the stirring component and the feeding tube, the material can be transported to the centrifuge for separation at a stable rate and pressure, which significantly improves the efficiency of the centrifugal separation process;

[0033] 2. This design ensures uniform distribution and stable supply of materials before entering the centrifuge, avoiding poor centrifugal separation effect caused by uneven feeding;

[0034] In summary, the present invention significantly improves the material processing efficiency and the centrifugal separation effect by optimizing the design of the thickener and the feeding system, ensures the continuous and efficient operation of the centrifuge, and has important application value and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall connection structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the connection structure between the feeding valve assembly and the spiral pressing assembly of the present invention;

[0037] Figure 3 It is a schematic diagram of the cross-sectional structure of the spiral pressing assembly of the present invention;

[0038] Figure 4 This is a detailed structural diagram of the A1 part of the present invention;

[0039] Figure 5 It is a schematic diagram of the cross-sectional structure of the feeding valve assembly of the present invention;

[0040] Figure 6 This is a detailed structural diagram of the A2 part of the present invention;

[0041] Figure 7 This is a detailed structural diagram of the A3 part of the present invention;

[0042] Figure 8 This is a detailed structural diagram of the A4 part of the present invention;

[0043] Fig. 9 It is a schematic diagram of the cross-sectional connection structure of the discharge valve components of the present invention;

[0044] Fig.10 It is a schematic diagram of the position structure of the valve plate and the valve sheet of the present invention in the open state (left figure) and the closed state (right figure);

[0045] Fig.11 It is a schematic diagram of the disassembled three-dimensional structure of the valve plate and the connector of the present invention.

[0046] In the figure: 1 feeding valve assembly, 2 spiral pressing assembly, 3 thickener, 4 feeding pipe, 5 centrifuge, 10 stirring component, 20 discharge valve component, 101 first flange, 102 discharge pipe, 103 rotating shaft, 104 spiral blade, 105 support rod, 106 first rotating shaft sleeve, 107 first mounting sleeve, 108 first one-way bearing, 109 first sealing cover, 110 first sealing sleeve, 111 first sliding bearing, 201 motor, 202 reducer, 203 coupling, 204 stirring shaft, 205 stirring paddle, 206 stirring shell, 207 outer shell, 208 second flange, 301 rotating block, 302 second mounting sleeve, 303 second one-way bearing, 304 second rotating shaft sleeve, 305 second sealing sleeve, 306 second sliding bearing, 307 The first shaft sleeve, 308 the third sealing sleeve, 309 the isolation plate, 310 the second shaft sleeve, 311 the fourth sealing sleeve, 312 the third sliding bearing, 313 the overflow pipe, 401 the valve sleeve shell, 402 the connector, 403 the end cover plate, 404 the shaft head positioning assembly, 405 the actuator, 406 the valve stem, 407 the valve plate, 408 the valve disc, 409 the discharge pipe, 410 the dust cover, 411 the first discharge channel, 412 the second discharge channel, 413 the fifth sealing sleeve, 414 the fourth sliding bearing, 501 the spacer sleeve, 502 the positioning plate, 503 the sliding sleeve, 504 the bearing seat, 505 the rolling bearing, 506 the round nut, 507 the shaft cover plate, 508 the first oil seal, 509 the second oil seal, 510 the hexagonal bolt, 511 the external joint, 512 the positioning pin. DETAILED DESCRIPTION

[0047] 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.

[0048] See also Figure 1-Figure 11, a centrifuge feeding compression device, including a feeding valve assembly 1 and a spiral pressing assembly 2, the upper end of the feeding valve assembly 1 is fixedly connected with the spiral pressing assembly 2, the upper end of the spiral pressing assembly 2 is connected to the thickener 3, the discharge end of the feeding valve assembly 1 is connected with a feeding pipe 4, and the end of the feeding pipe 4 is connected to the centrifuge 5. When in use, first, the thickener 3 performs preliminary concentration treatment on the original material, and the concentrated material is spirally extruded to the feeding valve assembly 1 through the spiral pressing assembly 2, and then introduced into the feeding pipe 4 through the feeding valve assembly 1, and finally the material is transported to the centrifuge 5 through the feeding pipe 4 for separation treatment. The feeding valve assembly 1 includes a stirring component 10 and a discharge valve component 20, the upper end of the stirring component 10 is connected to the spiral pressing assembly 2, and the upper end side circumferential surface of the stirring component 10 is provided with at least one discharge valve component 20, and the discharge valve component 20 is connected to the feeding pipe 4. In the present invention, the thickener 3 performs preliminary concentration treatment on the original material, and the concentrated material is spirally extruded to the feeding valve assembly 1 through the spiral pressing assembly 2, and then introduced into the feeding pipe 4 through the feeding valve assembly 1, and finally the material is transported to the centrifuge 5 through the feeding pipe 4 for separation treatment. During the preliminary concentration process of the raw material, the material first enters the stirring component 10 from the spiral channel of the spiral pressing component 2 (at this time, the stirring component 10 continuously stirs the material entering the interior, but the spiral blade 104 in the spiral pressing component 2 is in a stationary state, and a spiral channel is formed between the spiral blade 104 and the inner wall of the discharge pipe 102). By continuous stirring (at this time, the stirring component 10 rotates clockwise), the material has continuous fluidity to avoid sedimentation and agglomeration leading to blockage of the feeding device. When the material needs to be discharged, the discharge valve component 20 is opened from the closed state (at the same time, the stirring component 10 switches from clockwise rotation to counterclockwise rotation), and the spiral pressing component 2 rotates the spiral blade 104 to squeeze the material into the stirring component 10. Under the action of pressure, the material can flow through the discharge valve component 20 into the feeding pipe 4, and then enter the centrifuge 5 from the feeding pipe 4 for centrifugal operation;

[0049] See also Figure 3In one embodiment, the spiral pressing assembly 2 includes a first flange 101, a feed pipe 102, a rotating shaft 103, a spiral blade 104, a support rod 105, a first rotating shaft sleeve 106, a first mounting sleeve 107, a first one-way bearing 108, and a first sealing cover 109. The first flange 101 is connected to the upper end of the stirring component 10 to facilitate the installation and disassembly between the feeding valve assembly 1 as a whole and the spiral pressing assembly 2. The feed pipe 102 is fixedly connected to the middle part of the upper end of the first flange 101. The upper end of the feed pipe 102 is connected to the thickener 3. The feed pipe 102 is used for conveying the material box. The feed pipe 102 is divided into a conical tube and a circular tube. A spiral blade 104 is rotatably connected inside the conical tube. The outer edge of the spiral blade 104 is fixedly connected with a rubber strip. The rubber strip is in contact with the inner wall of the conical tube. During the spiral feeding process, the blade surface of the spiral blade 104 gradually decreases with the conical tube. This structure can gradually increase the compression degree of the material, so that the material is subjected to increasing extrusion pressure during the conveying process. This helps to improve the conveying efficiency. At the same time, the design of the conical tube allows the material to be gradually squeezed during the conveying process, and the agglomerated material can be squeezed and crushed to avoid clogging of subsequent equipment. The spiral blade 104 is fixedly connected to the rotating shaft 103. The lower end of the rotating shaft 103 is transmission-connected to the stirring component 10. The upper end of the rotating shaft 103 is rotatably connected to the first rotating shaft sleeve 106. The outer peripheral side of the first rotating shaft sleeve 106 is fixedly connected to a plurality of support rods 105. The other ends of the support rods 105 are respectively connected to the inner wall of the circular tube to achieve relative fixation of the first rotating shaft sleeve 106. The upper end of the first rotating shaft sleeve 106 is fixedly connected with a first mounting sleeve 107, and a first one-way bearing 108 is fixedly connected inside the first mounting sleeve 107. The inner ring of the first one-way bearing 108 is fixedly connected to the rotating shaft 103 to ensure that the rotating shaft 103 can only rotate in one direction. The upper end of the first mounting sleeve 107 is fixedly connected with a first sealing cover 109 to prevent materials from entering the first mounting sleeve 107 and damaging the first one-way bearing 108. In the present invention, the stirring component 10 and the rotating shaft 103 are connected in a one-way driving structure. Therefore, the specific working principle of this embodiment is as follows:

[0050] Initial state: the material to be processed is added into the thickener 3, and the stirring component 10 is started. The stirring component 10 stirs clockwise. At this time, the first one-way bearing 108 only allows the rotating shaft 103 to rotate in one direction, so the rotating shaft 103 and the spiral blade 104 are in a stationary state. The material enters the stirring component 10 along the spiral channel formed by the spiral blade 104. At this time, the stirring component 10 stirs the entering material to prevent the material from settling and agglomerating. A feed pipe 102 and a spiral blade 104 are provided between the stirring component 10 and the thickener 3, which can reduce the influence of the stirring component 10 on the material concentration process in the thickener 3 during the stirring process;

[0051] Discharging state: After the material is concentrated, the discharging valve component 20 is first opened from the closed state, so that the material can flow out of the thickener 3 and enter the discharge pipe 102, and the stirring component 10 is switched from clockwise stirring to counterclockwise stirring. At this time, the rotating shaft 103 is driven to rotate by the one-way drive connection structure, and the rotating shaft 103 drives the spiral blade 104 to rotate. The spiral blade 104 squeezes the material through its spiral shape and rotation. The material squeezed by the spiral blade 104 forms a certain pressure in the spiral channel and enters the stirring component 10. In the stirring component 10, the material is further stirred and homogenized to prevent any possible deposition or agglomeration. Through the continuous rotation and squeezing action of the spiral blade 104, the material maintains a uniform flow, ensuring that the material enters the downstream processing equipment (such as the centrifuge 5) at a stable rate and pressure during the entire discharging process.

[0052] In one embodiment, a first sealing sleeve 110 and a first sliding bearing 111 are fixedly connected inside the first rotating shaft sleeve 106. The first sealing sleeve 110 and the first sliding bearing 111 are both sleeved on the rotating shaft 103. The first sliding bearing 111 is located at one end close to the first mounting sleeve 107, which ensures the smooth rotation of the rotating shaft 103 while preventing liquid in the material from penetrating into the first mounting sleeve 107, thereby causing corrosion damage to the first one-way bearing 108.

[0053] See also Figure 5-Figure 7In one embodiment, the stirring component 10 includes a motor 201, a reducer 202, a coupling 203, a stirring shaft 204, a stirring paddle 205, a stirring shell 206, and an outer shell 207. The upper end of the motor 201 is connected to the reducer 202, wherein the motor 201 is used to provide a power source, the reducer 202 can reduce the rotational power and increase the torque, the upper end of the reducer 202 is fixedly connected to the outer shell 207, the outer shell 207 provides a stable external protection and support structure, the outer shell 207 is rotatably connected to the coupling 203, the lower end of the coupling 203 is connected to the output end of the reducer 202, and the other end of the coupling 203 is connected to the stirring shaft 204 for transmitting power to the stirring shaft 204, and the upper end of the outer shell 207 is fixedly connected A stirring shell 206 is connected, and the upper end of the stirring shaft 204 is fixedly connected to the stirring paddle 205 after passing through the stirring shell 206. The stirring paddle 205 is rotatably connected in the stirring shell 206 to realize the material stirring operation. A one-way transmission component is fixedly connected to the middle of the stirring paddle 205, and the one-way transmission component is connected to the rotating shaft 103. When in use, one-way power transmission can be realized, that is, when the stirring shaft 204 rotates clockwise, power cannot be transmitted to the rotating shaft 103, and power can only be transmitted to the rotating shaft 103 when the stirring shaft 204 rotates counterclockwise. A second flange 208 is fixedly connected to the upper end of the stirring shell 206, and the second flange 208 is fixedly connected to the first flange 101 by bolts, thereby realizing a firm connection and sealing between the feeding valve assembly 1 and the spiral pressing assembly 2.

[0054] See also Figure 6In one embodiment, the one-way transmission assembly includes a rotating block 301, a second mounting sleeve 302, a second one-way bearing 303, a second rotating shaft sleeve 304, a second sealing sleeve 305, and a second sliding bearing 306. After the stirring shaft 204 penetrates the stirring shell 206, it is fixedly connected to the rotating block 301 to ensure that the stirring shaft 204 drives the rotating block 301 and its attached stirring paddle 205 to rotate together. A plurality of stirring paddles 205 are fixedly connected to the outer peripheral side of the rotating block 301 for stirring the material in the stirring shell 206. The upper end of the rotating block 301 is fixedly connected to the second mounting sleeve 302, and the second one-way bearing 303 is fixedly connected inside the second mounting sleeve 302. The inner ring of the second one-way bearing 303 is fixedly connected to the rotating shaft 103. 303 makes the stirring shaft 204 only drive the rotating shaft 103 to rotate in one direction. After the rotating shaft 103 passes through the second mounting sleeve 302, it is rotatably connected to the second rotating shaft sleeve 304. The second rotating shaft sleeve 304 is fixedly connected to the upper end of the second mounting sleeve 302. The second rotating shaft sleeve 304 is fixedly connected with the second sealing sleeve 305 and the second sliding bearing 306. The second sealing sleeve 305 and the second sliding bearing 306 are both sleeved on the rotating shaft 103. The second sliding bearing 306 is located at one end close to the second mounting sleeve 302. The second sealing sleeve 305 and the second sliding bearing 306 can improve the rotation stability of the rotating shaft 103 and prevent the liquid in the material from entering the second mounting sleeve 302 and causing erosion and damage to the second one-way bearing 303 in the second mounting sleeve 302.

[0055] See also Figure 6 In one embodiment, a first shaft sleeve 307 is fixedly connected to the middle part of the lower end of the stirring shell 206, and the stirring shaft 204 is rotatably connected in the first shaft sleeve 307. Two groups of annular grooves are opened in the first shaft sleeve 307, and third sealing sleeves 308 are respectively fixedly connected in the annular grooves. The third sealing sleeves 308 are respectively sleeved on the stirring shaft 204. In the present invention, the first shaft sleeve 307 and the third sealing sleeve 308 form a sealing structure to prevent the material from leaking from the stirring shell 206 into the outer shell 207.

[0056] See also Figure 7In one embodiment, an isolation plate 309 is fixedly connected to the outer shell 207, a second shaft sleeve 310 is fixedly connected to the middle of the isolation plate 309, a fourth sealing sleeve 311 and a third sliding bearing 312 are fixedly connected to the second shaft sleeve 310, the fourth sealing sleeve 311 and the third sliding bearing 312 are both sleeved on the stirring shaft 204, the third sliding bearing 312 is located below the fourth sealing sleeve 311, an overflow pipe 313 is fixedly connected to one side of the lower end of the isolation plate 309, and the other end of the overflow pipe 313 passes through the outside of the outer shell 207. When the third sealing sleeve 308 is aged and corroded by foreign objects, When the sealing performance cannot be guaranteed due to many factors such as corrosion, friction damage, etc., the material will leak into the outer shell 207 under pressure. At this time, the leakage can be intercepted by the isolation plate 309, and the second shaft sleeve 310 and the fourth sealing sleeve 311 form a second sealing structure to prevent the leakage from continuing to flow downward to the reducer 202. The third sliding bearing 312 in the second shaft sleeve 310 can improve the rotation stability of the stirring shaft 204. The intercepted leakage is guided to the outside of the outer shell through the overflow pipe 313, which is easy to handle and discharge, and prevents the internal parts from being eroded and contaminated by liquid.

[0057] See also Figure 8-Figure 11In one embodiment, the discharge valve component 20 includes a valve sleeve 401, a connector 402, an end cover plate 403, a shaft head positioning assembly 404, an actuator 405, a valve stem 406, a valve plate 407, and a valve sheet 408. The outer peripheral side of the stirring shell 206 is fixedly connected to the connector 402. One end of the valve sleeve 401 is sleeved on the connector 402 and sealed and fixed to the connector 402. A discharge pipe 409 is fixedly connected to the outer side wall of the lower end of the valve sleeve 401. The discharge pipe 409 is connected to the feeding pipe 4, the other end of the valve sleeve 401 is fixedly connected to the end cover plate 403, one side of the end cover plate 403 is fixedly connected to the dust cover 410, the middle part of the outer end of the dust cover 410 is fixedly connected to the actuator 405, the actuator 405 is connected to one end of the valve stem 406, the other end of the valve stem 406 penetrates the valve sleeve 401 and is rotatably connected to the middle part of the connector 402, and the valve stem 406 on one side of the connector 402 is fixedly connected to the valve plate 407. A valve plate 408 is fixedly connected to the valve plate 407 located on one side of the connecting body 402, and the valve plate 408 is in contact with the connecting body 402. A first discharge channel 411 runs through the connecting body 402, and a second discharge channel 412 is provided on the valve plate 407 and the valve plate 408. The second discharge channel 412 is opposite to or staggered with the first discharge channel 411. A fifth sealing sleeve 413 and a fourth sliding bearing 414 are respectively fixedly connected in the central hole of the end cover plate 403, and the fifth sealing sleeve 413 and the fourth sliding bearing 414 are both sleeved on the valve stem 406. A shaft head positioning assembly 404 is provided on the valve stem 406 in the dust cover 410, and the shaft head positioning assembly 404 and the end cover plate 403 are fixedly connected to each other. The shaft head positioning assembly 404 is used to position the valve stem 406 to ensure that the actuator 405 can be effectively connected to the end of the valve stem 406, and at the same time improve the stability of the valve stem 406 when it rotates. In this embodiment, the specific working principle is as follows:

[0058] 1. Normal closing state:

[0059] The actuator 405 rotates the valve plate 407 and the valve disc 408 to the closed position through the valve stem 406 . At this time, the first discharge channel 411 and the second discharge channel 412 are in a mutually staggered state, so that the material cannot flow into the valve housing 401 .

[0060] 2. Open status:

[0061] The actuator 405 drives the valve stem 406 to rotate, so that the valve plate 407 and the valve disc 408 rotate to the open position. At this time, the second discharge channel 412 is aligned with the first discharge channel 411, and the material can flow smoothly into the valve sleeve shell 401 and then be discharged from the discharge pipe 409 to the feeding pipe 4.

[0062] 3. Sealing performance:

[0063] When the valve plate 407 and the valve sheet 408 return to the closed position, the valve sheet 408 contacts the connector 402 to ensure sealing and prevent leakage of materials.

[0064] See also Figure 8 In one embodiment, the shaft head positioning assembly 404 includes a spacer sleeve 501, a positioning plate 502, a sliding sleeve 503, a bearing seat 504, a rolling bearing 505, a round nut 506, a shaft cover plate 507, a first oil seal 508, a second oil seal 509, and a hexagonal bolt 510. The edge of the positioning plate 502 is provided with a plurality of through holes, and the outer surface of the end cover plate 403 is provided with a plurality of bolt holes. The hexagonal bolt 510 passes through the through holes and the spacer sleeve 501 in sequence and is threadedly connected with the bolt hole. The middle part of the positioning plate 502 is rotatably connected with the sliding sleeve 503, and the sliding sleeve 503 is sleeved on the valve stem 406. The first oil seal 508 is connected between the sliding sleeve 503 and the positioning plate 502. A bearing seat 504 is connected to one side of the positioning plate 502. The rolling bearing 505 is fixedly connected inside the bearing seat 504. The second shaft sleeve 310 is connected to the valve stem 406, and the rolling bearing 505 One side of the bearing seat 504 is in conflict with the sliding sleeve 503, and the other side of the rolling bearing 505 is in conflict with the round nut 506. The round nut 506 is threadedly connected to the valve stem 406. A shaft cover plate 507 is fixedly connected to one side of the outer end of the bearing seat 504. A second oil seal 509 is arranged between the shaft cover plate 507 and the valve stem 406. In the present invention, the positioning plate 502 is spaced apart and connected to one side of the end cover plate 403 by the spacing sleeve 501, so as to realize the relative installation of the bearing seat 504. In the bearing seat 504, the position of the rolling bearing 505 is positioned by the round nut 506 and the sliding sleeve 503. The shaft cover plate 507 is connected to the other side of the bearing seat 504 to protect the internal structure. The first oil seal 508 between the sliding sleeve 503 and the positioning plate 502, and the second oil seal 509 between the shaft cover plate 507 and the valve stem 406 are used to prevent lubricant leakage and external impurities from entering the interior of the bearing seat 504.

[0065] See also Fig. 9 In one embodiment, an outer side wall of the upper end of the valve sleeve shell 401 is fixedly connected with an external joint 511, and a plug is threadedly connected to the external joint 511. The external joint 511 provides a flexible interface that can be used for external steam, flocculant and other process medium pipelines, so that the application range of the device is wider. When the external joint 511 is not in use, the plug can effectively close the external joint 511 to prevent material leakage.

[0066] See also Fig.11In one embodiment, the valve plate 408 is made of a corrosion-resistant non-metallic material and is fixed to the valve plate 407 by screws. First, the use of corrosion-resistant non-metallic materials to make the valve plate 408 can effectively resist corrosive materials and increase the service life of the valve. Secondly, the valve plate 408 is fixed by screws to ensure that it is not easy to fall off under high pressure or high flow rate conditions, thereby enhancing safety and reliability. A positioning pin 512 is fixedly connected to the connecting block on one side of the first discharge channel 411, and the positioning pin 512 is movably connected to the second discharge channel 412, so as to control the rotation angle of the valve plate 407 and the valve plate 408, thereby ensuring that the valve plate 408 maintains the correct position when opening and closing.

[0067] See also Figure 1-Figure 11 , the working principle of the present invention is:

[0068] 1. Preliminary concentration treatment:

[0069] 1. Add the material into the thickener 3, let it stand to allow the particles in the material to settle, and remove the upper part of the standing liquid to obtain the concentrated material;

[0070] 2. During the static process, the spiral blades 104 in the spiral pressing assembly 2 are relatively stationary. The spiral channel formed by the spiral blades 104 can reduce the turbulent effect of the stirring component 10 on the material in the thickener 3 during the stirring process. At the same time, the material in the thickener 3 enters the stirring component 10 through the spiral channel;

[0071] 3. During the static process, the motor 201 drives the stirring shaft 204 to rotate through the reducer 202, and the stirring shaft 204 drives the stirring paddle 205 to rotate clockwise, thereby stirring the material in the stirring shell 206 to prevent the material in the stirring shell 206 from settling and agglomerating;

[0072] 2. Material extrusion and mixing:

[0073] 1. After the thickener 3 has finished concentrating the material, the actuator 405 is started, and the discharge valve component 20 is opened from the closed state through the actuator 405, and the rotation direction of the motor 201 is switched at the same time. At this time, the motor 201 drives the stirring shaft 204 to rotate counterclockwise through the reducer 202, and drives the rotating shaft 103 to rotate under the action of the one-way transmission component;

[0074] 2. The rotating shaft 103 drives the spiral blade 104 to rotate, and the spiral blade 104 transports the material in the thickener 3 to the stirring component 10 through spiral extrusion;

[0075] 3. The stirring member 10 continuously stirs the material through the stirring paddle 205, which can break up the agglomerated material and avoid blockage during the conveying process;

[0076] 3. Material transportation:

[0077] 1. Under the action of pressure, the material in the stirring shell 206 enters the valve sleeve shell 401 through the first discharge channel 411 and the second discharge channel 412 on the side, and then enters the feeding pipe 4 through the discharge pipe 409 at the lower end of the valve sleeve shell 401. The end of the feeding pipe 4 is connected to the centrifuge 5. The material is transported to the centrifuge 5 through the feeding pipe 4 for final centrifugal separation.

[0078] Through the coordinated work of the above multiple steps, the centrifuge feeding compression device of the present invention can effectively process the original material, prevent the material from settling and agglomerating, ensure that the material enters the centrifuge 5 for separation operation at a stable rate and pressure, and greatly improve the efficiency and effect of the centrifugal separation process.

[0079] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0080] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A centrifuge feeding compression device, comprising a feeding valve assembly (1) and a spiral pressing assembly (2), characterized in that: The upper end of the feeding valve assembly (1) is fixedly connected to a spiral pressing assembly (2), the upper end of the spiral pressing assembly (2) is connected to a thickener (3), the discharge end of the feeding valve assembly (1) is connected to a feeding pipe (4), the end of the feeding pipe (4) is connected to a centrifuge (5), the feeding valve assembly (1) comprises a stirring component (10) and a discharge valve component (20), the upper end of the stirring component (10) is connected to the spiral pressing assembly (2), at least one discharge valve component (20) is provided on the circumferential surface of the upper end side of the stirring component (10), and the discharge valve component (20) is connected to the feeding pipe (4); The spiral pressing assembly (2) comprises a first flange (101), a feed pipe (102), a rotating shaft (103), a spiral blade (104), a support rod (105), a first rotating shaft sleeve (106), a first mounting sleeve (107), a first one-way bearing (108), and a first sealing cover (109), wherein the first flange (101) is connected to the upper end of the stirring component (10), a feed pipe (102) is fixedly connected to the middle of the upper end of the first flange (101), the upper end of the feed pipe (102) is connected to the lower end of the thickener (3), the feed pipe (102) is divided into a conical tube and a circular tube, wherein the spiral blade (104) is rotatably connected inside the conical tube, and the spiral blade (104) is fixedly connected to the On the rotating shaft (103), the lower end of the rotating shaft (103) is drivingly connected to the stirring component (10), the upper end of the rotating shaft (103) is rotatably connected to the first rotating shaft sleeve (106), the outer peripheral side surface of the first rotating shaft sleeve (106) is fixedly connected to a plurality of support rods (105), the other ends of the support rods (105) are respectively connected to the inner wall of the circular tube, the upper end of the first rotating shaft sleeve (106) is fixedly connected to the first mounting sleeve (107), the first mounting sleeve (107) is fixedly connected to the inside of the first one-way bearing (108), the inner ring of the first one-way bearing (108) is fixedly connected to the rotating shaft (103), and the upper end of the first mounting sleeve (107) is fixedly connected to the first sealing cover (109); The stirring component (10) comprises a motor (201), a reducer (202), a coupling (203), a stirring shaft (204), a stirring paddle (205), a stirring shell (206), and an outer shell (207); the upper end of the motor (201) is connected to the reducer (202); the upper end of the reducer (202) is fixedly connected to the outer shell (207); the outer shell (207) is rotatably connected to the coupling (203); the lower end of the coupling (203) is connected to the output end of the reducer (202); the other end of the coupling (203) is connected to the stirring shaft (206); 4), the outer shell (207) is fixedly connected to a stirring shell (206) at its upper end, the stirring shaft (204) is inserted into the stirring shell (206) and is fixedly connected to a stirring paddle (205), the stirring paddle (205) is rotatably connected in the stirring shell (206), a one-way transmission component is fixedly connected to the middle of the stirring paddle (205), the one-way transmission component is connected to the rotating shaft (103), the stirring shell (206) is fixedly connected to a second flange (208) at its upper end, and the second flange (208) is fixedly connected to the first flange (101) by bolts; The one-way transmission assembly comprises a rotating block (301), a second mounting sleeve (302), a second one-way bearing (303), a second rotating shaft sleeve (304), a second sealing sleeve (305), and a second sliding bearing (306); the stirring shaft (204) is fixedly connected to the rotating block (301) after passing through the stirring shell (206); a plurality of stirring paddles (205) are fixedly connected to the outer peripheral side surface of the rotating block (301); the upper end of the rotating block (301) is fixedly connected to the second mounting sleeve (302); the second one-way bearing (303) is fixedly connected inside the second mounting sleeve (302); the second one-way bearing (303) is fixedly connected to the inner side of the second one-way bearing (303); and the second one-way bearing (303) is fixedly connected to the inner side of the second one-way bearing (303). A rotating shaft (103) is fixedly connected to the inner ring of the bearing (303); the rotating shaft (103) passes through the second mounting sleeve (302) and is rotatably connected to the second rotating shaft sleeve (304); the second rotating shaft sleeve (304) is fixedly connected to the upper end of the second mounting sleeve (302); a second sealing sleeve (305) and a second sliding bearing (306) are fixedly connected to the second rotating shaft sleeve (304); the second sealing sleeve (305) and the second sliding bearing (306) are both sleeved on the rotating shaft (103); and the second sliding bearing (306) is located at one end close to the second mounting sleeve (302); The discharge valve component (20) comprises a valve sleeve (401), a connector (402), an end cover (403), a shaft head positioning assembly (404), an actuator (405), a valve stem (406), a valve plate (407), and a valve sheet (408). The outer peripheral side surface of the stirring shell (206) is fixedly connected to the connector (402). One end of the valve sleeve (401) is sleeved on the connector (402) and is sealed and fixed to the connector (402). The outer side of the lower end of the valve sleeve (401) is A discharge pipe (409) is fixedly connected to the wall, and the discharge pipe (409) is connected to the feeding pipe (4); the other end of the valve housing (401) is fixedly connected to an end cover plate (403); one side of the end cover plate (403) is fixedly connected to a dust cover (410); an actuator (405) is fixedly connected to the middle of the outer end of the dust cover (410); the actuator (405) is connected to one end of a valve stem (406); the other end of the valve stem (406) penetrates the valve housing (401) and is connected to the connector. The connecting body (402) is rotatably connected to the middle part, a valve plate (407) is fixedly connected to the valve stem (406) on one side of the connecting body (402), a valve plate (408) is fixedly connected to the valve plate (407) on one side of the connecting body (402), the valve plate (408) is in contact with the connecting body (402), a first discharge channel (411) is passed through the connecting body (402), and a second discharge channel (412) is opened on the valve plate (407) and the valve plate (408), and the second discharge channel (412) is arranged opposite to or staggered with the first discharge channel (411), a fifth sealing sleeve (413) and a fourth sliding bearing (414) are fixedly connected in the central hole of the end cover plate (403), the fifth sealing sleeve (413) and the fourth sliding bearing (414) are both sleeved on the valve stem (406), and a shaft head positioning component (404) is arranged on the valve stem (406) in the dust cover (410), and the shaft head positioning component (404) and the end cover plate (403) are fixedly connected to each other.

2. A centrifuge feeding compression device according to claim 1, characterized in that: A first sealing sleeve (110) and a first sliding bearing (111) are fixedly connected inside the first rotating shaft sleeve (106); the first sealing sleeve (110) and the first sliding bearing (111) are both sleeved on the rotating shaft (103); and the first sliding bearing (111) is located at one end close to the first mounting sleeve (107).

3. A centrifuge feeding compression device according to claim 1, characterized in that: A first shaft sleeve (307) is fixedly connected to the middle portion of the lower end of the stirring shell (206), and the stirring shaft (204) is rotatably connected in the first shaft sleeve (307). Two groups of annular grooves are provided in the first shaft sleeve (307), and third sealing sleeves (308) are respectively fixedly connected in the annular grooves. The third sealing sleeves (308) are respectively sleeved on the stirring shaft (204).

4. A centrifuge feeding compression device according to claim 1, characterized in that: An isolation plate (309) is fixedly connected inside the outer casing (207), a second shaft sleeve (310) is fixedly connected to the middle of the isolation plate (309), a fourth sealing sleeve (311) and a third sliding bearing (312) are fixedly connected inside the second shaft sleeve (310), the fourth sealing sleeve (311) and the third sliding bearing (312) are both sleeved on the stirring shaft (204), the third sliding bearing (312) is located below the fourth sealing sleeve (311), an overflow pipe (313) is fixedly connected to one side of the lower end of the isolation plate (309), and the other end of the overflow pipe (313) passes through the outside of the outer casing (207).

5. A centrifuge feeding compression device according to claim 4, characterized in that: The shaft head positioning assembly (404) comprises a spacer sleeve (501), a positioning plate (502), a sliding sleeve (503), a bearing seat (504), a rolling bearing (505), a round nut (506), a shaft cover plate (507), a first oil seal (508), a second oil seal (509), and a hexagonal bolt (510). The edge of the positioning plate (502) is provided with a plurality of through holes, and the outer surface of the end cover plate (403) is provided with a plurality of bolt holes. The hexagonal bolts (510) pass through the through holes and the spacer sleeve (501) in sequence and are threadedly connected to the bolt holes. The middle part of the positioning plate (502) is rotatably connected with the sliding sleeve (503), and the sliding sleeve (503) is sleeved on the valve stem (406). The sliding sleeve ( A first oil seal (508) is connected between the valve stem (406) and the positioning plate (503); a bearing seat (504) is connected to one side of the positioning plate (502); a rolling bearing (505) is fixedly connected to the inside of the bearing seat (504); the second shaft sleeve (310) is connected to the valve stem (406); one side of the rolling bearing (505) is in contact with the sliding sleeve (503); the other side of the rolling bearing (505) is in contact with the round nut (506); the round nut (506) is threadedly connected to the valve stem (406); a shaft cover plate (507) is fixedly connected to one side of the outer end of the bearing seat (504); and a second oil seal (509) is provided between the shaft cover plate (507) and the valve stem (406).

6. A centrifuge feeding compression device according to claim 1, characterized in that: An outer side wall of the upper end of the valve sleeve shell (401) is fixedly connected to an external joint (511), and a plug is threadedly connected to the external joint (511).

7. A centrifuge feeding compression device according to claim 1, characterized in that: The valve plate (408) is made of a corrosion-resistant non-metallic material and is fixed to the valve plate (407) by means of screws. A positioning pin (512) is fixedly connected to a connection block on one side of the first discharge channel (411), and the positioning pin (512) is movably connected to the second discharge channel (412).

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