Horizontal spiral screen centrifuge

Abstract

The invention relates to the technical field of centrifugal machines, in particular to a horizontal spiral screen centrifugal machine which comprises a base, a spiral screen and a spiral screen. The screening mechanism comprises a protective barrel fixedly connected with the supporting seat, the protective barrel is provided with a feeding port and a discharging port, a cabin door is hinged to the side face of the feeding port in a sealed mode, a rotating assembly is arranged in the protective barrel, and a filtering assembly is arranged in the rotating assembly; and the spiral pushing mechanism comprises a discharging barrel fixedly communicated with the discharging port, and the other side of the discharging barrel is in airtight rotation connection with a rotating disc. Through a rotating assembly, a filtering assembly and a rebounding cleaning assembly in the screening mechanism, solid-liquid separation of materials entering the protection barrel can be achieved, the situation that local accumulation influences the separation efficiency is avoided, the material agglomeration phenomenon caused by centrifugal force can be broken, solid particles are dispersed more evenly, agglomeration is prevented from hindering liquid from passing through a conical filtering net, and the separation efficiency is improved. Therefore, the solid-liquid separation effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifuges, and particularly to a horizontal spiral screen centrifuge. Background Art

[0002] A horizontal spiral screen centrifuge is an efficient solid-liquid separation device. It is horizontally placed and driven by a motor to rotate the drum at a high speed to generate a strong centrifugal force, so that the liquid in the mixed material can quickly pass through the conical filter screen and be separated, while the solid particles are intercepted on the screen. The spiral pusher in the drum continuously pushes the intercepted solid particles towards the discharge port for discharge, thereby realizing a continuous and efficient solid-liquid separation process, and is widely used in industries such as chemical engineering, environmental protection, food, and pharmaceuticals.

[0003] When the existing horizontal spiral screen centrifuge performs centrifugal separation of solid-liquid, the solids gradually agglomerate as the centrifugal force time increases, resulting in incomplete solid-liquid separation. This is because under the action of the centrifugal force for a long time, the centrifugal force received by the solid particles continuously increases, and the relative movement between the particles intensifies. On the one hand, the particles collide frequently during high-speed movement, and the collision enables the intermolecular forces (such as van der Waals forces) on the particle surface to have more opportunities to play a role, prompting the particles to adsorb and approach each other. On the other hand, as the centrifugal force increases, the flow velocity of the liquid accelerates, the ability to carry and disperse the solid particles decreases, and the dispersion stability of the solid particles in the liquid becomes worse, making it easier to aggregate together, resulting in a more obvious agglomeration phenomenon. This agglomeration not only causes part of the liquid to be wrapped inside the solid mass and is difficult to be separated through the screen, but also blocks the screen, further hindering solid-liquid separation, and ultimately leading to incomplete solid-liquid separation, affecting the separation effect and the operating efficiency of the equipment. Summary of the Invention

[0004] Aiming at the above-mentioned disadvantages of the existing technology, the present invention provides a horizontal spiral screen centrifuge, which can effectively solve the problems in the existing technology that the particles collide frequently during high-speed movement, resulting in part of the liquid being wrapped inside the solid mass and being difficult to be separated through the screen, and also blocking the screen.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention provides a horizontal spiral screen centrifuge, including: A base, fixedly connected with a support seat on the outer surface; A screening mechanism, including a protective barrel fixedly connected with the support seat. The protective barrel has a feed inlet and a discharge outlet. A hatch is hermetically hinged to the side of the feed inlet. A rotating assembly is arranged inside the protective barrel, and a filtering assembly is arranged inside the rotating assembly; The screw feeding mechanism includes a discharge tube fixedly connected to the discharge port. The other side of the discharge tube is hermetically and rotationally connected to a turntable, and the turntable is used to drive the filter assembly to rotate. A double gear ring is fixedly connected to the other side of the turntable. A hollow rod is provided at the central position on the side of the turntable facing the discharge tube. A plurality of inertial telescopic components are arranged inside the hollow rod, and two sets of elastic crushing components and a stirring component are arranged inside the inertial telescopic components; The motor is fixedly connected to the base and is used to drive the turntable to rotate.

[0006] Preferably, a impurity collecting box is fixedly connected to the upper end surface of the base between the two support seats. A square impurity discharge pipe is fixedly connected to the side of the impurity collecting box. A controller is installed on the side of the base, and the controller is electrically connected to the motor; A plurality of annular sliding rails are linearly and arrayedly fixedly connected to the inner peripheral surface of the protective barrel. A plurality of groups of impurity discharge holes are linearly and arrayedly opened at the bottom of the inner peripheral surface of the protective barrel, and each group of impurity discharge holes alternates with the annular sliding rails in position; The rotating assembly includes a plurality of first positioning rings and second positioning rings sleeved in the length direction inside the protective barrel. The number of first positioning rings is one more than the number of second positioning rings, and the first positioning rings and the second positioning rings alternate in position. A plurality of interconnecting plates are fixedly connected to the outer peripheral surfaces of the first positioning rings and the second positioning rings in a common annular array. A plurality of pulleys are linearly and arrayedly fixedly connected to the other side of the interconnecting plates, and the number and position of the pulleys correspond one by one to those of the annular sliding rails. The pulleys are rollingly clamped inside the annular sliding rails.

[0007] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art: 1. Through the rotating assembly, the filter assembly and the rebound cleaning assembly in the screening mechanism, the solid-liquid separation of the materials entering the protective barrel can be realized. Among them, the rotating assembly is used to maintain the stability of the filter assembly in the protective barrel during rotation and provide rotational support for the filter assembly. The filter assembly realizes the solid-liquid separation of the materials by rotating at a high speed, so that the solids are retained in the filter assembly and the liquid is discharged from the filter assembly. And when the filter assembly separates the solid and liquid of the materials, the rebound cleaning assembly realizes the continuous rebound and crushing of the materials. On the one hand, it realizes the position movement of the materials in the filter assembly, and on the other hand, it realizes the rebound and crushing of the materials agglomerated due to centrifugal separation. By continuously moving the materials in the filter assembly, the local accumulation affecting the separation efficiency is avoided, and the agglomeration phenomenon of the materials caused by centrifugal force can be broken, so that the solid particles are more evenly dispersed, preventing the agglomeration from hindering the liquid from passing through the conical filter screen, thereby improving the solid-liquid separation effect.

[0008] 2. Through the inertial telescopic component, elastic crushing component and stirring component in the spiral feeding mechanism, the position and shape of the materials during the liquid-solid separation process in the filtering component can be further changed, and the movement of the materials that have completed the liquid-solid separation in the filtering component can be realized, so as to be discharged. Among them, when the filtering component reaches the maximum rotation speed, the inertial telescopic component extends out from the inside of the hollow rod, so that the elastic crushing component and stirring component located therein complete the crushing of the agglomerated materials and the change of the direction when the filtering component rotates, so as to avoid the materials concentrating and gathering at the same position in the filtering component. When the rotation speed is increased before the liquid-solid separation of the filtering component and decreased after the liquid-solid separation, the spiral sheet in the hollow rod realizes the movement of the materials, so that the materials that have completed the liquid-solid separation can enter and be discharged smoothly, reducing the material residue and improving the processing capacity and separation quality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0010] Figure 1 Structural schematic diagram of the whole of the present invention; Figure 2 Structural schematic diagram of the side of the whole of the present invention; Figure 3 Structural schematic diagram of the inside of the protective barrel of the present invention; Figure 4 Structural schematic diagram of the internal section of the protective barrel of the present invention; Figure 5 Structural schematic diagram of the protective barrel of the present invention; Figure 6 Structural schematic diagram of the screening mechanism of the present invention; Figure 7 Structural schematic diagram of the rotating component of the present invention; Figure 8 Structural schematic diagram of the filtering component of the present invention; Figure 9 Structural schematic diagram of the rebound cleaning component of the present invention; Figure 10 Structural schematic diagram of the spiral feeding mechanism of the present invention; Figure 11 Structural schematic diagram of the double gear ring of the present invention; Figure 12 Structural schematic diagram of the inside of the hollow rod of the present invention; Figure 13 Structural schematic diagram of the inertial telescopic component of the present invention; Figure 14 Structural schematic diagram of the elastic crushing component of the present invention; Figure 15 Structural schematic diagram of the stirring component of the present invention.

[0011] Reference numerals: 1, base; 11, support base; 12, impurity collection box; 13, impurity discharge square pipe; 2, screening mechanism; 21, protective barrel; 211, annular slide rail; 212, impurity discharge hole; 22, rotating component; 221, first positioning ring; 222, second positioning ring; 223, interconnecting plate; 224, pulley; 23, filtering component; 231, first spacer ring; 232, connecting rod; 233, second spacer ring; 234, elastic rod; 235, conical filter screen; 236, linkage rod; 24, rebound cleaning component; 241, fixing plate; 242, elastic airbag; 243, counterweight component; 2431, elastic telescopic rod; 2432, counterweight block; 2433, spring; 244, exhaust pipe; 245, pressing plate; 246, pressure concentrating cover; 25, hatch; 3, spiral feeding mechanism; 31, turntable; 32, double-toothed ring; 311, rotating shaft; 312, power gear; 313, intermediate gear; 33, hollow rod; 34, spiral blade; 35, fixed rod; 36, inertial telescopic component; 361, yield telescopic rod; 362, sliding frame; 363, counterweight ball; 37, elastic crushing component; 371, fixed seat; 372, positioning plate; 373, flexible spring; 374, slideway; 375, slider; 376, crushing knife; 38, stirring component; 381, rotating rod; 382, hollow spiral cover; 383, resistance fan blade; 384, stirring frame; 39, discharge cylinder; 391, discharge square pipe; 4, motor. Detailed implementation manners

[0012] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0013] The present invention will be further described below with reference to the embodiments.

[0014] Embodiment: Refer to Figures 1 to 15 , a horizontal spiral screen centrifuge, comprising: Base 1, fixedly connected with a support base 11 on the outer surface; The screening mechanism 2 includes a protective barrel 21 fixedly connected to the support base 11. The protective barrel 21 has a feed inlet and a discharge outlet. A hatch 25 is hermetically hinged to the side of the feed inlet. A rotating assembly 22 is arranged inside the protective barrel 21, and a filtering assembly 23 is arranged inside the rotating assembly 22; The screw feeding mechanism 3 includes a discharge barrel 39 fixedly connected to the discharge outlet. The other side of the discharge barrel 39 is hermetically rotatably connected to a turntable 31, and the turntable 31 is used to drive the filtering assembly 23 to rotate. A double gear ring 32 is fixedly connected to the other side of the turntable 31. A hollow rod 33 is arranged at the central position on the side of the turntable 31 facing the discharge barrel 39. A plurality of inertial telescopic assemblies 36 are arranged inside the hollow rod 33, and two groups of elastic crushing assemblies 37 and a stirring assembly 38 are arranged inside the inertial telescopic assemblies 36; The motor 4 is fixedly connected to the base 1 and is used to drive the turntable 31 to rotate.

[0015] The rotating assembly 22 in the screening mechanism 2 provides support and rotation guidance for the rotation of the filtering assembly 23 in the protective barrel 21, so that the rotating assembly 22 can rotate smoothly in the protective barrel 21. The filtering assembly 23 realizes liquid-solid separation of the materials entering it through the centrifugal force generated by high-speed rotation. In the screw feeding mechanism 3, the power of the motor 4 is transmitted to the turntable 31 through the double gear ring 32, and then the turntable 31 further drives the filtering assembly 23 to rotate. While the double gear ring 32 transmits power to the turntable 31, it also drives the hollow rod 33 to rotate. After the rotation speed of the filtering assembly 23 reaches the maximum, the inertial telescopic assembly 36 located in the hollow rod 33 extends, and through the elastic crushing assembly 37 and the stirring assembly 38 in the inertial telescopic assembly 36, the crushing and position change of the materials during the separation process are realized.

[0016] Refer to Figures 4 to 7 As shown in, a impurity collection box 12 is fixedly connected to the upper end surface of the base 1 between the two support bases 11. A square impurity discharge pipe 13 is fixedly connected to the side of the impurity collection box 12. A controller is installed on the side of the base 1, and the controller is electrically connected to the motor 4; A plurality of annular slide rails 211 are linearly arrayed and fixedly connected to the inner peripheral surface of the protective barrel 21. A plurality of groups of impurity discharge holes 212 are linearly arrayed and opened at the bottom of the inner peripheral surface of the protective barrel 21, and the positions of each group of impurity discharge holes 212 and the annular slide rails 211 are alternating; The rotating assembly 22 includes a plurality of first positioning rings 221 and second positioning rings 222 sleeved on the inner length direction of the protective barrel 21. The number of the first positioning rings 221 is one more than that of the second positioning rings 222, and the positions of the first positioning rings 221 and the second positioning rings 222 are alternating. A plurality of interconnecting plates 223 are fixedly connected in a common annular array on the outer peripheral surfaces of each of the first positioning rings 221 and the second positioning rings 222. A plurality of pulleys 224 are fixedly connected in a linear array on the other side of the interconnecting plates 223, and the number and positions of the pulleys 224 correspond one by one to those of the annular sliding rail 211. The pulleys 224 are in rolling engagement with the inside of the annular sliding rail 211.

[0017] By engaging the annular sliding rail 211 with the pulleys 224, the first positioning rings 221 and the second positioning rings 222 can rotate along the inside of the protective barrel 21, and the liquid separated by the filtering assembly 23 will flow along the inner wall of the protective barrel 21 through the impurity discharge holes 212 into the impurity collection box 12, and then the liquid in the impurity collection box 12 is discharged through the impurity discharge square pipe 13.

[0018] Refer to Figure 4 、 Figure 8 The filtering assembly 23 includes a plurality of connecting rods 232 annularly arrayed on the inner peripheral surface of the first positioning rings 221. A plurality of elastic rods 234 are fixedly connected in an annular array on the inner peripheral surface of the second positioning rings 222. The other sides of each of the connecting rods 232 are fixedly connected together to form a first spacer ring 231. The other sides of each of the elastic rods 234 are fixedly connected together to form a second spacer ring 233. The size of the first spacer ring 231 is larger than that of the second spacer ring 233. A conical filter screen 235 is fixedly connected between the adjacent first spacer ring 231 and the second positioning ring 222. A plurality of linkage rods 236 are fixedly connected in an annular array on the side surface of the first spacer ring 231 close to the discharge cylinder 39. The other side of the linkage rods 236 is fixedly connected to the side of the turntable 31 facing the first spacer ring 231.

[0019] The different sizes of the first spacer ring 231 and the second positioning ring 222 in the filtering assembly 23 form the conical filter screen 235, and the power provided by the motor 4 to the turntable 31 is transmitted to the first spacer ring 231, the second positioning ring 222 and the conical filter screen 235 through the linkage rods 236, so as to realize the liquid-solid separation of the materials.

[0020] Refer to Figures 6 to 9 A plurality of rebound cleaning assemblies 24 are annularly arrayed on the inner peripheral surfaces of each of the first positioning rings 221 and the second positioning rings 222. The rebound cleaning assembly 24 includes a fixing plate 241 fixedly connected to the inner peripheral surfaces of the first positioning rings 221 and the second positioning rings 222. A plurality of elastic air bags 242 are fixedly connected in a linear array on the upper end surface of the fixing plate 241. A plurality of exhaust pipes 244 corresponding to the elastic air bags 242 are fixedly connected to the bottom of the fixing plate 241, and one end of the exhaust pipe 244 close to the elastic air bag 242 penetrates through the fixing plate 241 and is communicated with the elastic air bag 242.

[0021] A plurality of counterweight components 243 are arranged on the upper end surface of the fixing plate 241, and the counterweight components 243 and the elastic airbag 242 are alternately positioned. The counterweight component 243 includes an elastic telescopic rod 2431 fixedly connected to the upper end surface of the fixing plate 241. A counterweight block 2432 is slidably connected to the rod body of the elastic telescopic rod 2431. Springs 2433 are symmetrically and fixedly connected to opposite sides of the counterweight block 2432 centered on the elastic telescopic rod 2431, and the other ends of the springs 2433 close to the fixing plate 241 are in contact with the upper end surface of the fixing plate 241; The elastic airbag 242 and the side of the elastic telescopic rod 2431 away from the fixing plate 241 are commonly fixedly connected with a pressure plate 245, and the other ends of the springs 2433 close to the pressure plate 245 are in contact with the bottom of the pressure plate 245. A plurality of pressure concentrating covers 246 are linearly and arrayedly fixedly connected to the side of the pressure plate 245 away from the elastic airbag 242.

[0022] The pressure concentrating covers 246 in the rebound cleaning assembly 24 can bear the inertia of the materials in the centrifugal separation in the filtering assembly 23 and guide the inertia into the elastic airbag 242, so that the elastic airbag 242 is compressed together with the springs 2433 and the counterweight blocks 2432, so that the gas in the elastic airbag 242 is released to the conical filter screen 235 at the corresponding position through the exhaust pipe 244 to clean the materials adhered to the conical filter screen 235.

[0023] Refer to Figures 10 to 12 , a discharge square pipe 391 is fixedly communicated with the bottom of the discharge cylinder 39, and the other end of the discharge square pipe 391 penetrates through the base 1 and extends to the bottom of the base 1. The double gear ring 32 has outer ring teeth and inner ring teeth, and the number of outer ring teeth is more than the number of inner ring teeth; A rotating shaft 311 is rotatably connected to the side of the turntable 31 facing the double gear ring 32 and corresponding to the hollow rod 33. A power gear 312 is fixedly connected to the shaft body of one end of the rotating shaft 311 facing the double gear ring 32. The other end of the rotating shaft 311 penetrates through the turntable 31 and is fixedly connected with the hollow rod 33. An intermediate gear 313 is rotatably connected between the inner ring of the double gear ring 32 and the power gear 312 on the turntable 31, and the intermediate gear 313 meshes with the inner ring teeth of the double gear ring 32 and the power gear 312. The output end of the motor 4 is fixedly connected with a transmission gear, and the transmission gear meshes with the outer ring teeth of the double gear ring 32.

[0024] A spiral blade 34 is fixedly connected to the rod body of the hollow rod 33. Each inertia telescopic assembly 36 is located between the spiral blades 34. A fixed rod 35 is fixedly connected to the middle part inside the hollow rod 33.

[0025] The motor 4 is engaged with the outer teeth of the double-toothed ring 32, so as to drive the turntable 31 to rotate through the double-toothed ring 32. Since the number of outer teeth of the double-toothed ring 32 is more than that of the inner teeth, the rotational speed transmitted to the rotating shaft 311 through the inner teeth by the intermediate gear 313 is less than that of the turntable 31, so that the rotational speed of the screening mechanism 2 driven by the turntable 31 is greater than the rotational speed of the screw feeding mechanism 3 driven by the rotating shaft 311.

[0026] Referring to Figures 12 to 13 , the inertial telescopic assembly 36 includes a yield telescopic rod 361 fixedly connected to the rod body of the fixed rod 35. The telescopic end of the yield telescopic rod 361 is fixedly connected with a sliding frame 362. The sliding frame 362 is slidably connected with the rod wall of the hollow rod 33, and the upper end surface of the sliding frame 362 extends outside the rod body of the hollow rod 33. At least one counterweight ball 363 is fixedly connected to the upper end surface of the sliding frame 362.

[0027] When the rotational speed of the motor 4 reaches the maximum value, the inertial force of the counterweight ball 363 is used to enable the yield telescopic rod 361 to reach the force required for extension by using the yield telescopic rod 361 in the inertial telescopic assembly 36, so that the sliding frame 362 extends from the inside to the outside along the hollow rod 33.

[0028] Referring to Figure 13 、 Figure 14 , two groups of elastic crushing assemblies 37 are respectively arranged on the inner walls on both sides in the width direction of the sliding frame 362. Each group of elastic crushing assemblies 37 has a plurality of them, and they are arranged in a rectangular array on the inner wall of the sliding frame 362. The elastic crushing assembly 37 includes a fixed seat 371 fixedly connected to the inner wall of the sliding frame 362. On the length direction of the side of the fixed seat 371 away from the sliding frame 362, two groups of positioning plates 372 are symmetrically fixedly connected. Each group of positioning plates 372 has at least two. On the width direction of the side of the fixed seat 371 where the positioning plates 372 are located, a plurality of sliding channels 374 are fixedly connected. The upper end surfaces of the respective sliding channels 374 are jointly slidably connected with a slider 375. At the lower positions on both sides in the length direction of the slider 375, flexible springs 373 corresponding to the positioning plates 372 are fixedly connected, and the other side of the flexible spring 373 is fixedly connected with the positioning plate 372. At the upper positions on both sides in the length direction of the slider 375, a plurality of crushing knives 376 are fixedly connected.

[0029] After the elastic crushing assembly 37 is extended, when the centrifugal force is used to separate the solid-liquid materials, the crushing of the agglomerates is realized by the crushing knives 376 in the elastic crushing assembly 37, and the buffering of the slider 375 is realized by the flexible springs 373 when the crushing knives 376 crush the materials.

[0030] Referring to Figure 13 、 Figure 15, the stirring assembly 38 includes a rotating rod 381 rotatably connected to both sides inside the length direction of the sliding frame 362. Two hollow spiral covers 382 are fixedly connected to the rod body of the rotating rod 381 in a mirror image manner. Two resistance fan blades 383 are rotatably connected to the rod body of the rotating rod 381 between the two hollow spiral covers 382. A stirring frame 384 is fixedly connected between the fan blades of the two resistance fan blades 383. The stirring frame 384 is composed of a plurality of inclined sheets with different inclinations.

[0031] The collision between the stirring frame 384 and the material provides power for the rotation of the rotating rod 381, and the movement state of the material is changed during separation through the hollow spiral cover 382 and the resistance fan blade 383.

[0032] The operation principle of this embodiment is specifically as follows: The first step: First, the operator opens the hatch 25 and pours the solid-liquid mixed material to be separated into the filtering assembly 23 through the feeding port of the protective barrel 21, and then closes the hatch 25 (special note: Closing the hatch 25 is not necessary. The operator can selectively close it according to the liquid content of the solid-liquid mixed material and in combination with the actual situation. For example, if the liquid content in the solid-liquid mixed material is relatively high, in order to prevent splashing during subsequent separation, it can be chosen to close). Then, the operator starts the motor 4 through the controller, and the motor 4 starts to operate, thereby driving the double gear ring 32 to rotate, providing initial power for the operation of the entire device (the device in this solution refers to a horizontal spiral screen centrifuge). Since the number of teeth on the outer ring of the double gear ring 32 is more than the number of teeth on the inner ring, different transmission effects will be generated when the double gear ring 32 transmits power. The double gear ring 32 drives the turntable 31 to rotate, and the turntable 31 drives the filtering assembly 23 to rotate at a high speed through the linkage rod 236. Since the power of the motor 4 directly acts on the teeth on the outer ring of the double gear ring 32, the filtering assembly 23 can obtain a relatively high rotational speed, thereby generating a strong centrifugal force to achieve efficient solid-liquid separation.

[0033] Among them, when the turntable 31 drives the filter assembly 23 to rotate at a high speed through the linkage rod 236, the first spacer ring 231, the second spacer ring 233 and the conical filter net 235 of the filter assembly 23 rotate at a high speed accordingly, so that the material to be separated realizes solid-liquid separation under the action of a strong centrifugal force. Since the size of the first spacer ring 231 is larger than that of the second spacer ring 233, and the conical filter net 235 is conical, the distribution of the material on the filter net is more uniform. Because: when the filter assembly 23 rotates at a high speed to generate a centrifugal force, the material will be thrown towards the conical filter net 235 under this force. Since the material passes through the conical filter net 235 from the first spacer ring 231 with a larger size to the second spacer ring 233 with a smaller size, the radius gradually decreases. According to the centrifugal force formula F = mω²r (F is the centrifugal force, m is the mass of the material, ω is the rotational angular velocity, and r is the distance of the material from the rotation center), the centrifugal force of the material gradually becomes smaller during the movement towards the second spacer ring 233, which makes the material not overly concentrated in one place. At the same time, the second spacer ring 233 is connected by the elastic rod 234. Under the inertial action of the material, the second spacer ring 233 will swing, driving the connected conical filter net 235 to swing together, thereby effectively shaking off the material adhering to the filter net, preventing the filter net from being blocked, ensuring continuous and efficient filtration. Moreover, the elasticity of the elastic rod 234 can also buffer the impact of the centrifugal force generated by the high-speed rotation of the material on the filter net, protect the structure of the filter net, and extend its service life. And this kind of swing can also make the material more evenly distributed on the filter net, optimize the filtration effect, allow the liquid to pass through the filter net more smoothly, and effectively intercept the solid particles, improving the quality of solid-liquid separation.

[0034] Among them, when the filter assembly 23 rotates at a high speed, the rotating assembly 22 ensures the stable operation of the filter assembly 23, provides support for the first spacer ring 231 and the second spacer ring 233 through the first positioning ring 221 and the second positioning ring 222, and the pulley 224 in the interconnecting plate 223 is rollingly clamped with the annular slide rail 211, just like a wheel on a track, providing stable rotational support for the filter assembly 23, ensuring that the filter assembly 23 will not show unstable phenomena such as shaking and deviation during high-speed rotation, and maintaining the stable progress of the solid-liquid separation process.

[0035] Step 2: When the filtration component 23 separates solid-liquid materials, the filtration component 23 and the rebound cleaning component 24 work together. As the filtration component 23 rotates at high speed, the materials contact the pressure accumulation cover 246 under the action of centrifugal force. The pressure accumulation cover 246 bears the inertial force of the materials and pushes the pressure plate 245. The pressure plate 245 squeezes the elastic airbag 242 and the spring 2433. At the same time, it drives the counterweight 2432 to slide on the elastic telescopic rod 2431. The elastic airbag 242 is squeezed, and the internal gas is quickly released to the surface of the conical filter screen 235 through the exhaust pipe 244. The airflow formed by these gases can effectively blow off the solid particles adhering to the pores and surface of the filter screen, prevent the filter screen from being blocked, maintain the permeability of the filter screen, and ensure the smooth progress of the solid-liquid separation process. At the same time, these gases will also act on the solid particles near the filter screen, disrupting the agglomeration structure between the particles and dispersing the already agglomerated particles again. For example, when processing materials containing fine particles, the particles that were originally aggregated together due to centrifugal force are broken up into single or smaller particle clusters after being impacted by the gas.

[0036] Among them, as the filtration component 23 continues to rotate, the rebound cleaning component 24 also rotates accordingly. When the rebound cleaning component 24 rotates to the top position of the filtration component 23, the inertial force of the materials no longer acts on the pressure accumulation cover 246. At this time, the counterweight 2432 slides downward along the elastic telescopic rod 2431 under the combined action of its own gravity and the elastic restoring force of the spring 2433, driving the pressure plate 245 and the elastic airbag 242 to return to their original states. During the recovery process of the elastic airbag 242, it sucks air from the outside through the exhaust pipe 244 to reserve gas for the next cleaning work. The filtration component 23 rotates continuously, and the rebound cleaning component 24 repeats this cycle to continuously clean the filter screen.

[0037] It should be supplemented and explained that: During the working process of the horizontal spiral screen centrifuge, when the filtration component 23 rotates at high speed and the elastic airbag 242 recovers and inhales air, since the strong centrifugal force generated by the filtration component 23 is much greater than the suction force of the elastic airbag 242 for inhalation and makes the materials closely adhere to the conical filter screen 235, the materials will neither be sucked into the elastic airbag 242 nor block the exhaust pipe 244. Before the filtration component 23 rotates, the rebound cleaning component 24 is in a natural state, the elastic airbag 242 is not squeezed, and the counterweight 2432 and the spring 2433 are both in the initial stable state.

[0038] Step 3: After the motor 4 starts, the transmission gear at its output end meshes with the outer teeth of the double gear ring 32. When driving the double gear ring 32 to rotate, since the number of outer teeth of the double gear ring 32 is more than that of the inner teeth, different transmission effects will be generated during power transmission. The outer teeth of the double gear ring 32 directly transmit the power to the connected turntable 31, and the turntable 31 drives the filter assembly 23 to rotate through the linkage rod 236, so that the filter assembly 23 obtains a relatively high rotational speed. As the motor 4 continues to operate, the rotational speed of the motor 4 continuously increases, and finally the rotational speed of the filter assembly 23 reaches the maximum rotational speed of the motor 4. While the double gear ring 32 drives the turntable 31 to rotate, the inner teeth of the double gear ring 32 mesh with the power gear 312 through the intermediate gear 313, and the power gear 312 is fixed on the rotating shaft 311, thereby driving the rotating shaft 311 to rotate, and then driving the hollow rod 33 to rotate. However, since the number of inner teeth of the double gear ring 32 is less than that of the outer teeth, through the transmission of the intermediate gear 313, the rotational speed transmitted to the rotating shaft 311 is less than that of the turntable 31, that is, the rotational speed transmitted to the hollow rod 33 is less than that of the filter assembly 23.

[0039] Among them, when the motor 4 reaches the maximum rotational speed, the inertial telescopic assembly 36 located inside the hollow rod 33 is triggered to start. The counterweight ball 363 in the inertial telescopic assembly 36 accumulates a large amount of inertia due to high-speed rotation, and its inertial force overcomes the resistance of the yield telescopic rod 361 (for example: assume the mass of the counterweight ball 363 is 0.5 kg and the rotation radius is 0.2 m. When the centrifuge reaches the highest rotational speed of 1250 revolutions per minute, convert the rotational speed to angular velocity, 1250 revolutions per minute = 1250÷60×2π≈130.9 rad / s. According to the centripetal force formula F = mω²r, the inertial force generated by the counterweight ball 363 is F = 0.5×130.9²×0.2≈1713.5 N. At this time, this inertial force can be regarded as the yield force that overcomes the resistance of the yield telescopic rod 361 and causes it to extend), causing the yield telescopic rod 361 to gradually extend, driving the sliding frame 362 to slide outward along the hollow rod 33 from the inside. After the sliding frame 362 extends to the maximum extension length of the yield telescopic rod 361.

[0040] After the sliding frame 362 reaches the maximum extension length of the yield telescopic rod 361, with the continuous high-speed rotation of the filter assembly 23 and the rotation of the hollow rod 33 at a speed lower than that of the filter assembly 23, the material continuously moves under the action of centrifugal force and collides with the crushing knife 376 of the elastic crushing assembly 37. When the material impacts the crushing knife 376, due to the certain impact force of the material, it will push the slider 375 to slide on the slideway 374, and the positioning plates 372 symmetrically arranged on both sides of the fixed seat 371 provide guidance and restraint for the sliding of the slider 375. Furthermore, during the sliding process of the slider 375, the flexible spring 373 will be compressed, playing a buffering role. This buffering mechanism avoids the subsequent damage of the crushing knife 376 due to excessive impact force, ensuring that the crushing knife 376 can work continuously and stably.

[0041] When the crushing knife 376 contacts the material during the process, it crushes the agglomerated material, breaks the larger material lumps into smaller particles, makes the solid particles more evenly dispersed, which is beneficial for the subsequent liquid to pass through the filter screen more smoothly, and improves the efficiency and quality of solid-liquid separation.

[0042] Among them, when the material collides with the crushing knife 376 in the elastic crushing assembly 37, since the stirring frame 384 of the stirring assembly 38 is composed of a plurality of inclined sheets with different inclination degrees, when the hollow rod 33 drives the sliding frame 362 to rotate, the stirring frame 384 moves in the material together with the sliding frame 362. Due to the special design of the inclined sheets, the stirring frame 384 also collides with the material. During the frequent collision process between the stirring frame 384 and the material, it will receive the reaction force of the material, thereby providing power for the rotation of the rotating rod 381. After the rotating rod 381 obtains the rotating power, it drives the hollow spiral cover 382 and the resistance fan blade 383 on the rod body to rotate together. During the rotation process, the hollow spiral cover 382 can change the movement trajectory of the material, avoid the material concentrating in a certain area. At the same time, when the resistance fan blade 383 rotates, it will increase the friction and collision between the materials, make the solid particles and liquid in the material more fully mixed and dispersed. In this way, the aggregation phenomenon of the material is reduced, the effect of solid-liquid separation is improved, and it is ensured that the liquid can pass through the conical filter screen 235 more fully, reducing the obstruction of solid particles to liquid separation.

[0043] It should be particularly noted that when the yield telescopic rod 361 extends, it drives the sliding frame 362 to slide outward along the hollow rod 33 from the inside to the maximum extension length. The sliding frame 362 basically completely slides out of the hollow rod 33. However, to prevent the material from entering the hollow rod 33 and affecting the operation of the equipment, a small part of its bottom does not slide out. This unslid bottom part serves as a blocking structure and fits with the inner wall of the hollow rod 33. During the operation of the equipment, even if the material continuously impacts the sliding frame 362, it can still stably block the material from entering the internal space of the hollow rod 33, ensure the cleanliness inside the hollow rod 33, ensure the normal operation of components such as the inertial telescopic assembly 36, the elastic crushing assembly 37, and the stirring assembly 38, and maintain the operation stability of the overall equipment and the solid-liquid separation efficiency.

[0044] Step 4: When the spiral sheet 34 on the rod body of the hollow rod 33 rotates, the spiral sheet 34 cooperates with the rebound cleaning assembly 24 to push the solid material to the discharge cylinder 39, and finally discharges it from the equipment through the discharge square pipe 391, completing the entire solid-liquid separation process.

[0045] When the spiral blade 34 rotates, it cooperates with the rebound cleaning component 24 to gradually move the material towards the discharge cylinder 39. The reason is as follows: when the hollow rod 33 rotates, the spiral blade 34 rotates accordingly. Due to its spiral structure, during the rotation of the material, it is subjected to a component force along the spiral direction, which pushes the material towards the discharge cylinder 39. When the spiral blade 34 moves the material, when the material contacts the rebound cleaning component 24 under the action of centrifugal force, the elastic component will undergo elastic deformation. According to Hooke's law F = -kx (where F is the elastic force, k is the stiffness coefficient, and x is the deformation), when the elastic component is impacted by the material, it will generate an elastic force in the opposite direction of the impact force. This elastic force plays a buffering role, slowing down the movement speed of the material, preventing the material from being overly dispersed or splashed due to high-speed impact, enabling the material to be more concentrated within the action range of the spiral blade 34, facilitating the spiral blade 34 to capture the material. In addition, when the impact force of the material disappears, the elastic component returns to its original state, and during the recovery process, it will generate slight vibrations and displacements. These vibrations and displacements help loosen the material that is tightly attached due to centrifugal force, reduce the friction between the materials, making it easier for the spiral blade 34 to push the material, and further enhancing the ability of the spiral blade 34 to push the material towards the discharge cylinder 39.

[0046] It should be particularly noted that when the material moves in the spiral blade 34, it will not be affected by the inertial telescopic component 36 that slides out, the internal elastic crushing component 37, and the stirring component 38. The reason is as follows: although the inertial telescopic component 36 slides out of the hollow rod 33, the bottom part is still inside the rod, restricting its range of motion, so that the elastic crushing component 37 and the stirring component 38 will not directly interfere with the spiral blade 34 in pushing the material. In terms of the movement mode, the spiral blade 34 makes a stable rotation to axially push the material, while the sliding inertial telescopic component 36 drives the internal components to mainly perform radial or local material processing actions, which is different from the axial movement direction of the spiral blade 34. Moreover, the spiral blade 34 continuously pushes the material, and the inertial telescopic component 36 and its internal components are only activated after the filter component 23 reaches the maximum rotation speed, and their function is to improve the material separation effect, rather than hinder the movement of the material on the spiral blade 34. Therefore, the material can stably move towards the discharge cylinder 39 under the push of the spiral blade 34.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A horizontal spiral screen centrifuge, characterized in that, Including: A base (1) with a support base (11) fixedly connected to its outer surface; A screening mechanism (2), including a protective barrel (21) fixedly connected to the support base (11). The protective barrel (21) has a feed inlet and a discharge outlet. A hatch (25) is hermetically hinged to the side of the feed inlet. A rotating assembly (22) is arranged inside the protective barrel (21), and a filtering assembly (23) is arranged inside the rotating assembly (22); A spiral feeding mechanism (3), including a discharge barrel (39) fixedly communicated with the discharge outlet. The other side of the discharge barrel (39) is hermetically rotatably connected to a turntable (31), and the turntable (31) is used to drive the filtering assembly (23) to rotate. A double-toothed ring (32) is fixedly connected to the other side of the turntable (31). A hollow rod (33) is arranged at the central position on the side of the turntable (31) facing the discharge barrel (39). A plurality of inertial telescopic components (36) are arranged inside the hollow rod (33), and two groups of elastic crushing components (37) and a stirring component (38) are arranged inside the inertial telescopic component (36); A motor (4), fixedly connected to the base (1), for driving the turntable (31) to rotate.

2. The horizontal spiral screen centrifuge according to claim 1, characterized in that, A miscellaneous collection box (12) is fixedly connected to the upper end surface of the base (1) between the two support bases (11). A miscellaneous discharge square pipe (13) is fixedly communicated with the side of the miscellaneous collection box (12). A controller is installed on the side of the base (1), and the controller is electrically connected to the motor (4); A plurality of annular slide rails (211) are linearly arrayed and fixedly connected to the inner peripheral surface of the protective barrel (21). A plurality of groups of miscellaneous discharge holes (212) are linearly arrayed and opened at the bottom of the inner peripheral surface of the protective barrel (21), and the positions of each group of miscellaneous discharge holes (212) and the annular slide rails (211) are alternating; The rotating assembly (22) includes a plurality of first positioning rings (221) and second positioning rings (222) sleeved in the length direction inside the protective barrel (21). The number of first positioning rings (221) is one more than the number of second positioning rings (222), and the positions of the first positioning rings (221) and the second positioning rings (222) are alternating. A plurality of interconnecting plates (223) are annularly arrayed and fixedly connected to the outer peripheral surfaces of the first positioning rings (221) and the second positioning rings (222). A plurality of pulleys (224) are linearly arrayed and fixedly connected to the other side of the interconnecting plates (223), and the number and positions of the pulleys (224) correspond to those of the annular slide rails (211) one by one. The pulleys (224) are internally rolling and clamped with the annular slide rails (211).

3. The horizontal spiral screen centrifuge according to claim 2, characterized in that, The filtering component (23) includes a plurality of connecting rods (232) annularly arrayed on the inner peripheral surface of the first positioning ring (221). A plurality of elastic rods (234) are fixedly connected in an annular array on the inner peripheral surface of the second positioning ring (222). The other sides of the connecting rods (232) are commonly fixedly connected to a first spacer ring (231). The other sides of the elastic rods (234) are commonly fixedly connected to a second spacer ring (233). The size of the first spacer ring (231) is larger than that of the second spacer ring (233). A conical filter net (235) is fixedly connected between the adjacent first spacer ring (231) and the second positioning ring (222). A plurality of linkage rods (236) are fixedly connected in an annular array on the side surface of the first spacer ring (231) close to the discharge cylinder (39). The other side of the linkage rod (236) is fixedly connected to the side of the turntable (31) facing the first spacer ring (231).

4. The horizontal spiral screen centrifuge according to claim 3, wherein, A plurality of rebound cleaning components (24) are annularly arrayed on the inner peripheral surfaces of the first positioning ring (221) and the second positioning ring (222). The rebound cleaning component (24) includes a fixing plate (241) fixedly connected to the inner peripheral surfaces of the first positioning ring (221) and the second positioning ring (222). A plurality of elastic air bags (242) are fixedly connected in a linear array on the upper end surface of the fixing plate (241). A plurality of exhaust pipes (244) corresponding to the elastic air bags (242) are fixedly connected to the bottom of the fixing plate (241). And one end of the exhaust pipe (244) close to the elastic air bag (242) penetrates through the fixing plate (241) and is communicated with the elastic air bag (242).

5. The horizontal spiral screen centrifuge according to claim 4, wherein, A plurality of weight components (243) are arranged on the upper end surface of the fixing plate (241), and the weight components (243) and the elastic air bags (242) are alternately arranged. The weight component (243) includes an elastic telescopic rod (2431) fixedly connected to the upper end surface of the fixing plate (241). A weight block (2432) is slidably connected to the rod body of the elastic telescopic rod (2431). Springs (2433) are symmetrically fixedly connected to the opposite sides of the weight block (2432) with the elastic telescopic rod (2431) as the center. And the other end of the spring (2433) close to the fixing plate (241) contacts the upper end surface of the fixing plate (241). A pressing plate (245) is commonly fixedly connected to the sides of the elastic air bag (242) and the elastic telescopic rod (2431) far from the fixing plate (241). And the other end of the spring (2433) close to the pressing plate (245) contacts the bottom of the pressing plate (245). A plurality of pressure concentrating covers (246) are fixedly connected in a linear array on the side of the pressing plate (245) far from the elastic air bag (242).

6. The horizontal spiral screen centrifuge according to claim 1, wherein The bottom of the discharge cylinder (39) is fixedly communicated with a discharge square pipe (391). And the other end of the discharge square pipe (391) penetrates through the base (1) and extends to the bottom of the base (1). The double gear ring (32) has outer ring teeth and inner ring teeth, and the number of outer ring teeth is more than that of inner ring teeth; On one side of the turntable (31) facing the double gear ring (32) and corresponding to the hollow rod (33), a rotating shaft (311) is rotatably connected. One end of the rotating shaft (311) facing the double gear ring (32) is fixedly connected with a power gear (312) on the shaft body. The other end of the rotating shaft (311) penetrates through the turntable (31) and is fixedly connected with the hollow rod (33). An intermediate gear (313) is rotatably connected between the inner circle of the double gear ring (32) and the power gear (312) of the turntable (31), and the intermediate gear (313) meshes with the inner circle teeth of the double gear ring (32) and the power gear (312). The output end of the motor (4) is fixedly connected with a transmission gear, and the transmission gear meshes with the outer circle teeth of the double gear ring (32).

7. The horizontal spiral screen centrifuge according to claim 6, characterized in that, A spiral blade (34) is fixedly connected to the rod body of the hollow rod (33). Each of the inertial telescopic components (36) is located between the spiral blades (34). A fixed rod (35) is fixedly connected to the middle part inside the hollow rod (33).

8. The horizontal spiral screen centrifuge according to claim 7, wherein The inertial telescopic component (36) includes a yield telescopic rod (361) fixedly connected to the rod body of the fixed rod (35). The telescopic end of the yield telescopic rod (361) is fixedly connected with a sliding frame (362). The sliding frame (362) is slidably connected with the rod wall of the hollow rod (33), and the upper end surface of the sliding frame (362) extends outside the rod body of the hollow rod (33). At least one counterweight ball (363) is fixedly connected to the upper end surface of the sliding frame (362).

9. The horizontal spiral screen centrifuge according to claim 8, characterized in that, Two groups of the elastic crushing components (37) are respectively arranged on the inner walls on both sides in the width direction of the sliding frame (362). Each group of the elastic crushing components (37) has a plurality of them, and they are arranged in a rectangular array on the inner wall of the sliding frame (362). The elastic crushing component (37) includes a fixed seat (371) fixedly connected to the inner wall of the sliding frame (362). On the length direction of one side of the fixed seat (371) away from the sliding frame (362), two groups of positioning plates (372) are symmetrically fixedly connected. Each group of the positioning plates (372) has at least two. A plurality of sliding channels (374) are fixedly connected to the width direction of one side of the fixed seat (371) where the positioning plates (372) are located. The upper end surfaces of the sliding channels (374) are jointly slidably connected with a slider (375). Flexible springs (373) corresponding to the positioning plates (372) are fixedly connected to the lower positions on both sides in the length direction of the slider (375), and the other side of the flexible spring (373) is fixedly connected with the positioning plate (372). A plurality of crushing knives (376) are fixedly connected to the upper positions on both sides in the length direction of the slider (375).

10. The horizontal spiral screen centrifuge according to claim 1, characterized in that, The stirring assembly (38) includes rotating rods (381) rotatably connected to both sides inside the length direction of the sliding frame (362). Two hollow spiral covers (382) are fixedly connected to the rod bodies of the rotating rods (381) in a mirror image manner. Two resistance fan blades (383) are rotatably connected to the rod bodies of the rotating rods (381) between the two hollow spiral covers (382). A stirring frame (384) is fixedly connected between the fan blades of the two resistance fan blades (383). The stirring frame (384) is composed of a plurality of inclined sheets with different inclination degrees.

Images