Catalyst shaker screening device

Abstract

The application belongs to the technical field of vibrating screening and discloses a catalyst vibrating screening device, which comprises a shell, the bottom of the shell is fixedly connected with a base, the lateral wall of the shell is provided with a plurality of discharge grooves, and the top of the shell is fixedly connected with a feeding hopper. Through the cooperation of the structures such as the disc, the extrusion strip, the L-shaped rod, the inclined chute, the clamping column, the clamping groove and the moving block, the sensing and self-adaptive position adjustment during the significant change of the vibration amplitude are realized. When the amplitude of the screen mesh is significantly reduced or recovered due to the accumulation of materials, the disc moves up and down with the pressing plate, the inclined chute inside the L-shaped rod or the clamping column is extruded through the extrusion strip, the moving block is unlocked, the moving block slides to a new position corresponding to the current amplitude, and then the clamping column is relocked. The free floating space of the disc in the sliding groove effectively absorbs the high-frequency micro-vibration in the normal amplitude range, and the adjustment action is triggered only when the amplitude changes significantly, so that the wear and tear and the generation of frictional static electricity of the moving parts are greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of vibrating screening technology, specifically a catalyst vibrating screening device. Background Technology

[0002] Catalyst materials are characterized by viscosity, easy agglomeration, easy generation of static electricity, high density, light weight, and ultrafineness. Catalyst vibrating sieving refers to the process of classifying and separating impurities from raw catalyst materials or finished catalysts using vibrating sieving equipment. The vibrating screen generates excitation force through a vibrating motor, causing the screen mesh to vibrate at high frequency. The material is subjected to vibration force on the screen surface and passes through screens with different apertures according to different particle sizes, thereby achieving separation and screening. Sieving is a key step in the catalyst production process, which is directly related to the uniformity of particle size distribution and catalytic activity of the catalyst product.

[0003] A catalyst raw material vibrating screen, disclosed in prior art document CN222152866U, relates to the field of catalyst processing technology. It includes a screening box containing an inclined screen, a vibrating motor fixed to the bottom of the inclined screen, a first discharge port adapted to the inclined screen on the side of the screening box, and a second discharge port fixed to the bottom of the screening box. This device has a reasonable structure. When the control knob is rotated, the control rod, transmission worm gear, transmission worm wheel, and support rod drive the adjusting plate to rotate together, thereby achieving the purpose of adjusting the falling speed of the raw material. This effectively reduces the possibility of incomplete screening due to material accumulation caused by accidentally pouring in too much material at once, improving the screening effect of the device. Furthermore, it can be adapted to different types of raw materials, has a wide range of applications, is simple to operate, convenient to use, and has good practicality. While the aforementioned patent achieves manual adjustment of the raw material drop speed by setting control knobs, control rods, transmission worm gears, transmission worm wheels, and support rods to drive the adjustment plate, effectively reducing the problem of screen surface accumulation caused by excessive raw material being poured in at once, it cannot effectively solve the problem that the feed rate cannot be adaptively adjusted in real time according to the screen load. The opening of the adjustment plate needs to be preset manually based on experience, which is a static preset adjustment method. When the screen surface load fluctuates due to changes in material characteristics or uneven feeding during the screening process, the preset opening cannot respond dynamically and still requires manual intervention to readjust, resulting in obvious adjustment lag. This makes it difficult to meet the stability requirements of screening efficiency and screening quality in the continuous production of catalysts. Summary of the Invention

[0004] The purpose of this invention is to provide a catalyst vibrating sieve device with adaptive amplitude feed adjustment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a catalyst vibrating sieving device, comprising a shell, a base fixedly connected to the bottom of the shell, a plurality of discharge troughs formed on the side wall of the shell, and a feed hopper fixedly connected to the top of the shell, and further comprising: An amplitude adaptive mechanism is located on the housing; An opening degree adjustment mechanism, wherein the opening degree adjustment mechanism is connected to an amplitude adaptive mechanism; The amplitude adaptive mechanism includes several screens that slide against the inner cavity of the housing, and a pressure plate is elastically connected to the top edge of the first layer of screens. A moving block is slidably connected to the top of the pressure plate through a sliding column. A sliding groove is opened in the middle of the moving block, and the top of the sliding column is slidably connected to the sliding groove through a disc.

[0006] Preferably, the amplitude adaptive mechanism further includes a sleeve fixed to the inner cavity of the housing, the sleeve having several symmetrical slots on both sides, and a viewing window fixed to the upper side wall of the housing, the viewing window being located on the side wall of the sleeve.

[0007] Preferably, a pair of L-shaped rods are symmetrically and elastically slidable on both sides of the movable block, and each L-shaped rod has a locking pin fixed to its top, with the end of the locking pin engaged in a locking groove.

[0008] Preferably, the inner sides of the locking post and the L-shaped rod are provided with inclined grooves, and two pairs of extrusion strips are symmetrically fixed to the upper and lower sides of the disc, with the extrusion strips all facing the inclined grooves.

[0009] Preferably, a vibration motor is elastically connected inside the base via a fixing plate, a base plate is fixedly connected to the top of the vibration motor, and a vertical rod is fixedly connected to the top of the base plate.

[0010] Preferably, the outer wall of the vertical rod slides through the top of the housing, and the outer wall of the vertical rod is fixedly inserted through the middle of several screens at equal intervals.

[0011] Preferably, the opening adjustment mechanism includes a vertical rack fixed to the top of the moving block, the vertical rack slidingly passing through the top of the housing, and a protective shell slidably connected to the upper side of the top of the vertical rack, the bottom of the protective shell being fixed to the housing.

[0012] Preferably, the feed hopper and the edge of the shell are provided with a discharge hole, and a gate is slidably abutted against the inner side of the discharge hole, and the outer wall of the gate is slidably connected to the protective shell.

[0013] Preferably, a pinion is engaged on the upper side of the vertical rack, a large gear is fixedly connected to the side wall of the pinion, and the middle parts of the large gear and the pinion are rotatably connected to the protective shell.

[0014] Preferably, a transverse rack meshes with the lower side of the large gear, the end of the transverse rack is fixed to the gate plate, and the outer wall of the transverse rack is slidably connected to the inner cavity of the protective shell.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This invention achieves sensing and adaptive position adjustment when the vibration amplitude changes significantly by setting up a combination of structures such as a disc, extrusion bar, L-shaped rod, inclined groove, locking post, locking slot and moving block. When the screen amplitude decreases significantly or recovers due to material accumulation, the disc moves up and down with the pressure plate. The extrusion bar squeezes the inclined groove on the inside of the L-shaped rod or locking post, forcing the locking post to disengage from the locking slot and unlock. After the moving block slides to a new position corresponding to the current amplitude, the locking post re-locks. Compared with the defect of the traditional solution where any small vibration may trigger the mechanism, this invention uses the free floating space of the disc in the chute to effectively absorb high-frequency micro-vibrations within the normal amplitude range. The adjustment action is only triggered when the amplitude changes significantly, which greatly reduces the wear of moving parts and the generation of static electricity. At the same time, the position of the moving block can be directly observed through the viewing window to determine the amplitude range, which makes it easy for operators to grasp the operating status of the equipment.

[0016] (2) By setting up a combination of structures such as a vertical rack, a small gear, a large gear, a horizontal rack, and a gate, this invention achieves precise amplification of the small displacement of the moving block and adaptive adjustment of the feed opening. When the moving block moves, it drives the vertical rack to move synchronously. The vertical rack drives the small gear to rotate. The large gear, which is fixed on the same axis, rotates synchronously and drives the horizontal rack to slide the gate, thereby adjusting the opening of the feed hole. Since the number of teeth of the small gear is less than that of the large gear, the small displacement of the vertical rack is precisely amplified into a larger linear displacement output on the pitch circle of the large gear after being transmitted through the coaxial speed-increasing transmission. Compared with the static adjustment method of manually turning the knob in the comparison document, this invention uses the change of amplitude as the automatic trigger signal for the adjustment of the feed amount, and realizes the real-time adaptive control of the feed opening as the screen load changes dynamically. When the amplitude decreases, that is, when the material accumulation increases, the feed automatically decreases. When the amplitude recovers, that is, when the material decreases, the feed automatically increases, avoiding the problem of screen overload caused by the lag of manual adjustment.

[0017] (3) By setting up a combination of structures such as a locking post, a slot and a moving block, the present invention achieves synchronous locking and position maintenance under vibration after the position adjustment is completed. When the moving block slides to a new position corresponding to the current amplitude, the locking post is re-engaged into the slot under the action of elastic force, and the positions of the moving block, vertical rack and gate are synchronously locked, ensuring that the opening of the feed hole after adjustment remains stable under continuous high frequency vibration. The adjusted gate position will not drift due to vibration. This synchronous locking mechanism enables the device to operate stably in this working state after completing one adaptive adjustment, until the screen load changes significantly again and the adjustment is triggered again, avoiding unnecessary micro-motion wear of the gate due to high frequency vibration, and further improving the long-term operating stability and reliability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the structural fit between the feed hole and the gate plate of the present invention; Figure 3 This is a schematic diagram of the side cross-section structure of the present invention; Figure 4 For the present invention Figure 3 A magnified view of the structure at point A in the middle; Figure 5 This is a schematic diagram showing the structural fit between the pinion and the gear of the present invention; Figure 6 This is a schematic diagram showing the structural fit between the locking post and the L-shaped rod of the present invention; Figure 7 This is a schematic diagram showing the structural fit between the disc and the extrusion bar of the present invention; Figure 8 This is a schematic diagram showing the structural fit between the locking post and the inclined groove of the present invention.

[0019] In the picture: 100. Shell; 200. Base; 300. Discharge chute; 400. Feed hopper; 500. Amplitude adaptive mechanism; 510. Vibration motor; 520. Base plate; 530. Vertical rod; 540. Screen; 550. Sleeve; 560. Moving block; 570. Pressure plate; 580. Locking post; 590. Viewing window; 5100. Locking slot; 5110. L-shaped rod; 5120. Inclined groove; 5130. Sliding column; 5140. Disc; 5150. Extrusion strip; 600. Opening degree adjustment mechanism; 610. Protective shell; 620. Discharge hole; 630. Gate; 640. Horizontal rack; 650. Large gear; 660. Vertical rack; 670. Small gear. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 8 As shown, the present invention provides a catalyst vibrating screening device, including a housing 100, a base 200 fixedly connected to the bottom of the housing 100, a plurality of discharge troughs 300 formed on the side wall of the housing 100, and a feed hopper 400 fixedly connected to the top of the housing 100, and further including: An amplitude adaptive mechanism 500 is located on the housing 100; The aperture adjustment mechanism 600 is connected to the amplitude adaptive mechanism 500. The amplitude adaptive mechanism 500 includes several screens 540 that slide against the inner cavity of the housing 100. The top edge of the first layer of screens 540 is elastically connected to a pressure plate 570. The top of the pressure plate 570 is slidably connected to a moving block 560 via a sliding column 5130. A groove is provided in the middle of the moving block 560. The top of the sliding column 5130 is slidably connected to the groove via a disc 5140.

[0022] The above scheme is adopted: the amplitude adaptive mechanism 500 includes a plurality of screens 540 that slide against the inner cavity of the housing 100. The top edge of the first layer of screens 540 is connected to a pressure plate 570 through an elastic connector, so that the pressure plate 570 can float up and down with the vibration of the screens 540 and absorb part of the vibration energy. The top of the pressure plate 570 is slidably connected to a moving block 560 through a sliding column 5130. A groove is opened in the middle of the moving block 560. A disc 5140 is fixed to the top of the sliding column 5130. The disc 5140 is slidably connected in the groove in the middle of the moving block 560 and can float up and down freely in the groove. Within the normal vibration amplitude range, the disc 5140 only floats back and forth in the groove without driving the moving block 560 to move. When the vibration amplitude changes significantly, the disc 5140 touches the limit position of the groove and pushes the moving block 560 to slide along the inner wall of the sleeve 550 to a position corresponding to the current amplitude. Meanwhile, the opening degree adjustment mechanism 600 is connected to the amplitude adaptive mechanism 500. The sliding of the moving block 560 drives the gate 630 to slide through the opening degree adjustment mechanism 600 to adjust the opening size of the feed hole 620, so as to realize the automatic adjustment of the feed amount according to the amplitude of the screen 540.

[0023] like Figures 3 to 8As shown, the amplitude adaptive mechanism 500 also includes a sleeve 550 fixed to the inner cavity of the housing 100. Several slots 5100 are symmetrically formed on both sides of the sleeve 550. A viewing window 590 is fixed to the upper side wall of the housing 100, and the viewing window 590 is located on the side wall of the sleeve 550. A pair of L-shaped rods 5110 are symmetrically and elastically slidable on both sides of the moving block 560. Each L-shaped rod 5110 has a locking pin 580 fixed to its top, and the end of the locking pin 580 is engaged in the slot 5100. The locking pins 580 and the L-shaped rods 5110... The inner side of the 10 is provided with inclined grooves 5120. Two pairs of extrusion strips 5150 are symmetrically fixed to the upper and lower sides of the disc 5140, and the extrusion strips 5150 are all facing the inclined grooves 5120. The base 200 is elastically connected to the vibration motor 510 through the fixing plate. The top of the vibration motor 510 is fixed to the bottom plate 520, and the top of the bottom plate 520 is fixed to the vertical rod 530. The outer wall of the vertical rod 530 slides through the top of the housing 100, and the outer wall of the vertical rod 530 is fixedly inserted through the middle of several screens 540 at equal intervals.

[0024] Using the above scheme: When the material accumulation on the screen 540 increases, causing a significant decrease in vibration amplitude, the downward movement of the disc 5140 increases synchronously with the downward movement of the pressure plate 570 and the sliding column 5130. The downward-moving disc 5140 pushes the pair of extrusion bars 5150 fixed to its lower side downward. This forces the pair of symmetrically elastically sliding L-shaped rods 5110 to overcome the elastic force and slide inward. The locking pins 580 fixed to the top of the L-shaped rods 5110 move inward synchronously with the L-shaped rods 5110, causing the ends of the locking pins 580 to disengage from the symmetrically opened slots 5100 on both sides of the sleeve 550, releasing the lock on the moving block 560. The inclined angle of the inclined groove 5120 is set appropriately so that the vertical movement of the extrusion bar 5150 can generate sufficient component force to overcome the elastic force of the L-shaped rods 5110 and drive them to slide inward. After the movable block 560 is unlocked, it slides downward along the inner wall of the sleeve 550 under the continuous pushing action of gravity and the pressure plate 570 until it reaches the position corresponding to the current amplitude. At this point, the downward movement of the disc 5140 stops, and the L-shaped rod 5110 resets under the action of elastic force, pushing the locking pin 580 to move outward and re-engage into the corresponding slot 5100, thus relocking the movable block 560 in the new position. The relocking process occurs after the movable block 560 reaches the position precisely corresponding to the current amplitude, rather than during the movement process. This ensures the accuracy and stability of the locked position and avoids the problem of position deviation caused by premature locking during the movement process. Conversely, when the material on the screen 540 decreases, causing a significant increase in vibration amplitude, the disc 5140 moves upward in sync with the pressure plate 570 and the sliding column 5130. The upward-moving disc 5140 pushes the pair of extrusion strips 5150 fixed to its upper side upward, extruding the inner wall of the inclined groove 5120 opened on the inner side of the locking column 580, forcing the locking column 580 to slide inward and disengage from the locking groove 5100, releasing the lock on the moving block 560. Under the push of the pressure plate 570, the moving block 560 slides upward to the position corresponding to the current amplitude. Then, the locking column 580 resets and re-locks into the new locking groove 5100, completing the position update of the moving block 560. This structure unlocks and adjusts the position of the moving block 560 only when the vibration amplitude changes significantly. Most small fluctuations are absorbed by the free floating space of the disc 5140 in the chute, effectively avoiding the frequent unlocking and locking actions of the locking pin 580 and the locking slot 5100 caused by high-frequency micro-vibration. This significantly reduces the wear of moving parts and the generation of static electricity. At the same time, the viewing window 590 fixed to the upper side wall of the housing 100 is located on the side wall of the sleeve 550. The operator can directly observe the current position of the moving block 560 through the viewing window 590, thereby judging the amplitude range and working status of the screen 540. This enables visual monitoring of the screening process, allowing the operator to grasp the equipment operation status without stopping the machine and opening the cover for inspection, greatly improving the convenience of daily inspection and maintenance.

[0025] like Figures 2 to 5As shown, the opening adjustment mechanism 600 includes a vertical rack 660 fixed to the top of the moving block 560. The vertical rack 660 slides through the top of the housing 100, and a protective shell 610 is slidably connected to the upper side of the top of the vertical rack 660. The bottom of the protective shell 610 is fixed to the housing 100. The feed hopper 400 and the edge of the housing 100 are jointly provided with a discharge hole 620. A gate 630 slides against the inner side of the discharge hole 620. The outer wall of the 0 is slidably connected to the protective shell 610; the upper side of the vertical rack 660 is meshed with a small gear 670, the side wall of the small gear 670 is fixedly connected to a large gear 650, and the middle parts of the large gear 650 and the small gear 670 are rotatably connected to the protective shell 610; the lower side of the large gear 650 is meshed with a horizontal rack 640, the end of the horizontal rack 640 is fixedly connected to the gate 630, and the outer wall of the horizontal rack 640 is slidably connected to the inner cavity of the protective shell 610.

[0026] The above-mentioned scheme, while amplifying the displacement through the speed-increasing transmission of the small gear 670 and the large gear 650, does not amplify the minute vibrations of the moving block 560. This is because the vertical rack 660 does not move when the moving block 560 is locked; it only moves after the moving block 560 unlocks and slides to its new position. Therefore, the gear transmission will not transmit vibrations to the gate 630, causing high-frequency fretting wear. Compared to the static adjustment method in the comparative document, which requires manual rotation of a knob, this structure uses amplitude changes as an automatic trigger signal for feed rate adjustment. This achieves real-time adaptive control of the feed opening based on the dynamic changes in the load of the screen 540. When material accumulation increases, causing a decrease in amplitude, the feed rate automatically decreases; when material decreases, causing an recovery in amplitude, the feed rate automatically increases. The entire adjustment process requires no manual intervention, and the response speed is synchronized with the change in vibration amplitude, eliminating the time lag of manual observation, judgment, and operation. This ensures that the material layer thickness on the screen 540 is always maintained within a range conducive to efficient screening.

[0027] Working principle and usage process of this invention: When the catalyst vibrating screening device is started, the vibrating motor 510 begins to work, driving the base plate 520 and the vertical rod 530 fixed to the top of the base plate 520 to generate high-frequency vibration. Since the outer wall of the vertical rod 530 is fixedly inserted through the middle of several screens 540 at equal intervals, and the screens 540 slide against the inner cavity of the shell 100, the multiple screens 540 generate high-frequency vibration synchronously in the inner cavity of the shell 100 under the drive of the vertical rod 530. The catalyst raw material is fed into the feed hopper 400 and falls into the surface of the first layer of screens 540 through the discharge hole 620. Under the action of the high-frequency vibration of the screens 540, particles with a diameter smaller than the screen holes pass through the upper screen 540 and fall into the lower screen 540 or are discharged through the discharge chute 300, while particles with a diameter larger than the screen holes move along the screen surface and are discharged from the corresponding discharge chute 300, realizing multi-stage screening and grading. During this process, the pressure plate 570, which is elastically connected to the top edge of the first layer of screen 540, vibrates synchronously with the screen 540. The top of the pressure plate 570 is slidably connected to the groove in the middle of the moving block 560 through the sliding column 5130. The disc 5140 on the top of the sliding column 5130 floats up and down in the groove with the vibration. Since the disc 5140 has a certain amount of free sliding space in the groove of the moving block 560, and the elastic connector between the pressure plate 570 and the top edge of the first layer of screen 540 can absorb some vibration energy, the slight fluctuations within the normal vibration amplitude range only cause the disc 5140 to float back and forth in the groove, without causing the moving block 560 to move as a whole. This effectively filters out most of the high-frequency vibration components and avoids unnecessary frequent displacement of the moving block 560 due to high-frequency micro-vibrations.

[0028] Furthermore, when the material accumulation on the screen 540 increases, causing a significant decrease in vibration amplitude, the downward movement of the disc 5140 increases synchronously with that of the pressure plate 570 and the sliding column 5130. The downward-moving disc 5140 pushes the pair of extrusion bars 5150 fixed to its lower side downward. Since the extrusion bars 5150 are all set towards the inclined groove 5120 opened inside the L-shaped rod 5110, the downward-moving extrusion bars 5150 press against the inner wall of the inclined groove 5120 of the L-shaped rod 5110, forcing the pair of symmetrically elastically sliding L-shaped rods 5110 to overcome the elastic force and slide inward. The locking pin 580 fixed to the top of the L-shaped rod 5110 moves inward synchronously with the L-shaped rod 5110, causing the end of the locking pin 580 to disengage from the locking grooves 5100 symmetrically opened on both sides of the sleeve 550, releasing the lock on the moving block 560. After the movable block 560 is unlocked, it slides down along the inner wall of the sleeve 550 under the continuous pushing action of gravity and pressure plate 570 until it reaches the position corresponding to the current amplitude. At this point, the downward movement of the disc 5140 stops, the L-shaped rod 5110 resets under the action of elastic force, pushes the locking pin 580 to move outward and re-engages it into the corresponding slot 5100, and relocks the movable block 560 in the new position. Conversely, when the material on the screen 540 decreases, causing a significant increase in vibration amplitude, the disc 5140 moves upward in sync with the pressure plate 570 and the sliding column 5130. The upward-moving disc 5140 pushes the pair of extrusion strips 5150 fixed to its upper side upward, extruding the inner wall of the inclined groove 5120 opened on the inner side of the locking column 580, forcing the locking column 580 to slide inward and disengage from the locking groove 5100, releasing the lock on the moving block 560. Under the push of the pressure plate 570, the moving block 560 slides upward to the position corresponding to the current amplitude. Then, the locking column 580 resets and re-locks into the new locking groove 5100, completing the position update of the moving block 560. The structure unlocks and adjusts the position of the moving block 560 only when the vibration amplitude changes significantly. Most small fluctuations are absorbed by the free floating space of the disc 5140 in the groove, effectively avoiding the frequent unlocking and locking actions of the locking pin 580 and the locking groove 5100 caused by high-frequency micro-vibration. This significantly reduces the wear of moving parts and the generation of static electricity. At the same time, the viewing window 590 fixed to the upper side wall of the housing 100 is located on the side wall of the sleeve 550. The operator can directly observe the current position of the moving block 560 through the viewing window 590, and judge the amplitude range and working status of the screen 540 accordingly.

[0029] Furthermore, as the moving block 560 slides within the sleeve 550 and relocks into a new position due to changes in vibration amplitude, the vertical rack 660 fixed to the top of the moving block 560 moves synchronously upwards or downwards with the moving block 560. The vertical rack 660 slides through the top of the housing 100 and extends into the inner cavity of the protective shell 610, and a pinion 670 meshes with the upper side of the vertical rack 660. The linear movement of the vertical rack 660 drives the pinion 670 to rotate in the corresponding direction. A large gear 650 is fixedly connected to the side wall of the pinion 670, and the pinion 670 and the large gear 650 are coaxially fixedly connected to the protective shell 610. The two rotate synchronously and in the same direction. Since the pinion 670 has fewer teeth than the large gear 650, the displacement of the vertical rack 660, after being accelerated by the coaxial transmission of the pinion 670 and the large gear 650, produces a larger linear displacement output on the pitch circle of the large gear 650, thus achieving precise amplification of the minute displacement of the moving block 560. A horizontal rack 640 meshes with the lower side of the large gear 650. The end of the horizontal rack 640 is fixed to the gate 630. The rotational motion of the large gear 650 drives the horizontal rack 640 to slide back and forth in the horizontal direction, thereby causing the gate 630 to slide synchronously. When the moving block 560 moves upward due to increased vibration amplitude, the vertical rack 660 moves upward, driving the small gear 670 and the large gear 650 to rotate in the forward direction. The horizontal rack 640 drives the gate 630 to slide in the opening direction, increasing the opening of the discharge hole 620 located at the common edge of the feed hopper 400 and the housing 100, and automatically increasing the feed rate. Conversely, when the moving block 560 moves downward due to decreased vibration amplitude, the vertical rack 660 moves downward, driving the small gear 670 and the large gear 650 to rotate in the opposite direction. The horizontal rack 640 drives the gate 630 to slide in the closing direction, decreasing the opening of the discharge hole 620 and automatically reducing the feed rate. Compared to the static adjustment method of manual knob rotation required in the comparison document, this structure uses amplitude change as an automatic trigger signal for feed rate adjustment, realizing real-time adaptive control of the feed opening according to the dynamic change of the screen 540 load. When the material accumulation increases and the amplitude decreases, the feed automatically decreases; when the material decreases and the amplitude recovers, the feed automatically increases.

[0030] Finally, after the position adjustment of the moving block 560 is completed, the locking pin 580, under the action of elastic force, re-locks into the corresponding slot 5100, synchronously locking the positions of the moving block 560, the vertical rack 660, and the gate 630. This synchronous locking mechanism ensures that the adjusted opening of the discharge hole 620 remains stable under vibration conditions, and even under continuous high-frequency vibration conditions, the adjusted position of the gate 630 will not drift due to vibration. When the material accumulation state on the screen 540 changes again, the disc 5140 pushes the extrusion bar 5150 to release the lock, and the moving block 560 moves again to a new position corresponding to the current amplitude. Through the transmission chain of the vertical rack 660, the pinion 670, the large gear 650, and the horizontal rack 640, the gate 630 is driven to readjust the opening of the discharge hole 620. This is especially suitable for complex working conditions in catalyst screening where the material characteristics are variable, the viscosity is high, and clogging is easy, significantly improving the screening efficiency and long-term operational stability of the device.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A catalyst vibrating sieving device, comprising a housing (100), a base (200) fixedly connected to the bottom of the housing (100), a plurality of discharge troughs (300) formed on the side wall of the housing (100), and a feed hopper (400) fixedly connected to the top of the housing (100), characterized in that, Also includes: An amplitude adaptive mechanism (500) is located on the housing (100); An opening degree adjustment mechanism (600) is connected to an amplitude adaptive mechanism (500); The amplitude adaptive mechanism (500) includes several screens (540) that slide against the inner cavity of the housing (100), and a pressure plate (570) is elastically connected to the top edge of the first layer of screens (540). A moving block (560) is slidably connected to the top of the pressure plate (570) through a sliding column (5130). A sliding groove is provided in the middle of the moving block (560), and the top of the sliding column (5130) is slidably connected to the sliding groove through a disc (5140).

2. The catalyst vibrating sieving device according to claim 1, characterized in that: The amplitude adaptive mechanism (500) further includes a sleeve (550) fixed to the inner cavity of the housing (100). Several slots (5100) are symmetrically opened on both sides of the sleeve (550). A viewing window (590) is fixed to the upper side wall of the housing (100), and the viewing window (590) is located on the side wall of the sleeve (550).

3. The catalyst vibrating sieving device according to claim 2, characterized in that: The movable block (560) has a pair of L-shaped rods (5110) that slide symmetrically and elastically on both sides. Each L-shaped rod (5110) has a locking post (580) fixed to its top. The end of the locking post (580) is engaged in the locking groove (5100).

4. The catalyst vibrating sieving device according to claim 3, characterized in that: The inner sides of the locking post (580) and the L-shaped rod (5110) are provided with inclined grooves (5120). Two pairs of extrusion strips (5150) are symmetrically fixed to the upper and lower sides of the disc (5140), and the extrusion strips (5150) are all set towards the inclined grooves (5120).

5. The catalyst vibrating sieving device according to claim 1, characterized in that: A vibration motor (510) is elastically connected inside the base (200) via a fixing plate. A base plate (520) is fixedly connected to the top of the vibration motor (510), and a vertical rod (530) is fixedly connected to the top of the base plate (520).

6. The catalyst vibrating sieving device according to claim 5, characterized in that: The outer wall of the vertical rod (530) slides through the top of the housing (100), and the outer wall of the vertical rod (530) is fixedly inserted at equal intervals through the middle of several screens (540).

7. The catalyst vibrating sieving device according to claim 1, characterized in that: The opening adjustment mechanism (600) includes a vertical rack (660) fixed to the top of the moving block (560), the vertical rack (660) slides through the top of the housing (100), and a protective shell (610) is slidably connected to the upper side of the top of the vertical rack (660), the bottom of the protective shell (610) is fixed to the housing (100).

8. The catalyst vibrating sieving device according to claim 7, characterized in that: The feed hopper (400) and the shell (100) are provided with a discharge hole (620) on their edges. A gate (630) slides against the inner side of the discharge hole (620), and the outer wall of the gate (630) is slidably connected to the protective shell (610).

9. The catalyst vibrating sieving device according to claim 8, characterized in that: The upper side of the vertical rack (660) is meshed with a small gear (670), and a large gear (650) is fixedly connected to the side wall of the small gear (670). The middle parts of the large gear (650) and the small gear (670) are rotatably connected to the protective shell (610).

10. The catalyst vibrating sieving device according to claim 9, characterized in that: The lower side of the large gear (650) is meshed with a transverse rack (640), the end of which is fixed to the gate plate (630), and the outer wall of the transverse rack (640) is slidably connected to the inner cavity of the protective shell (610).

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