Anti-sticking scraper for a flight dryer

Abstract

The utility model discloses a kind of anti-sticking scrapers of chain plate dryer, it relates to chemical fertilizer production equipment technical field, the anti-sticking scraper of this chain plate dryer includes: mounting bracket, including first connecting plate and pressure plate, first connecting plate is connected with pressure plate;Angle adjusting mechanism, including second connecting plate and adjusting plate, two second connecting plates are symmetrically set in pressure plate, adjusting plate is set in one side of second connecting plate, also be provided with arc groove;Pressing mechanism, it is set in one side of pressure plate and between two adjusting plates;Scraping plate assembly, including scraping plate body and connecting piece, connecting piece is set in one end of scraping plate body and the groove wall of arc groove abuts, scraping plate body rotates along the axis of connecting piece relative to adjusting plate.The utility model cooperates through angle adjusting mechanism and pressing mechanism, improves the working condition adaptability problem of scraping plate while maintaining the stability of scraping plate assembly, prolongs equipment life, improves production efficiency, reduces production loss.

Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer production equipment, and in particular to an anti-stick scraper for a chain plate dryer. Background Technology

[0002] In fertilizer manufacturing, chain-plate dryers are crucial drying equipment. However, fertilizer granules (especially high-moisture, high-salt compound fertilizers) are easily softened by heat during drying and adhere to the conveyor chain. The continuous accumulation of this adhesive layer leads to material conveying issues, uneven drying, and a surge in energy consumption, potentially causing equipment blockages and shutdowns. To address this problem, Xiyou Technology primarily employs wear-resistant metal scrapers installed at fixed angles or scrapers coated with anti-stick materials such as Teflon, relying on the scraper's hard contact to forcibly remove the adhering material.

[0003] However, there are significant shortcomings in the existing technology: First, the fixed-angle scraper cannot adapt to the dynamic changes in fertilizer adhesion force. When the viscosity is high, it cannot be scraped clean, and when the viscosity is low, it wears excessively on the chain plate. Second, the scraper is rigidly installed during installation, but rigid installation lacks self-adaptive ability. When the chain plate is thermally deformed or worn and dented, a gap is generated between the scraper and the chain plate, resulting in local adhesion residue or excessive pressure causing the scraper to jam or break, thus shortening the working life of the equipment.

[0004] Therefore, there is a need for an anti-stick scraper that can adapt to fertilizers of various viscosities and hardnesses and has a long service life for use in chain plate dryers. Utility Model Content

[0005] The main purpose of this utility model is to provide an anti-stick scraper for a chain plate dryer, which aims to solve the problem that the existing anti-stick scrapers of chain plate dryers are difficult to handle fertilizers with various viscosities and hardnesses and have a short service life during the production process.

[0006] To achieve the above objectives, the anti-stick scraper of the chain plate dryer proposed in this utility model includes:

[0007] The mounting bracket includes a first connecting plate and a pressure plate, wherein the first connecting plate and the pressure plate are perpendicularly connected.

[0008] An angle adjustment mechanism includes a second connecting plate and an adjustment plate. There are two second connecting plates, which are symmetrically arranged on the pressure plate along an axis, and the extension direction of the second connecting plates is perpendicular to the pressure plate. There are two adjustment plates corresponding to the number of second connecting plates. The two adjustment plates are fixedly arranged on opposite sides of the two second connecting plates. The two adjustment plates are also provided with arc-shaped grooves, and the extension direction of the arc-shaped grooves is arranged along the length direction of the adjustment plate.

[0009] A clamping mechanism is disposed on the pressure plate on one side close to the angle adjustment mechanism and located between the two adjustment plates;

[0010] A scraper assembly includes a scraper body and a connector. The connector is disposed at one end of the scraper body and abuts against the wall of the arc-shaped groove. The scraper body rotates relative to the adjusting plate along the axis of the connector. The two ends of the scraper body in the vertical direction are connected to the pressure plate through the clamping mechanism.

[0011] Preferably, the pressing mechanism includes a first elastic element, a second elastic element, and a pad. The first elastic element, the second elastic element, and the pad are all spaced apart along the axis of the pressure plate and all face the side closer to the angle adjustment mechanism. The first elastic element is disposed on the end of the pressure plate away from the first connecting plate, the second elastic element is disposed on the end of the pressure plate closer to the first connecting plate, and the pad is disposed between the first elastic element and the second elastic element. The first elastic element and the second elastic element are respectively connected to both ends of the scraper body.

[0012] Preferably, the mounting bracket further includes two limiting posts, which are evenly arranged on the pressure plate near one end of the first elastic element, spaced apart from the first elastic element.

[0013] Preferably, the connector includes a connecting block and a connecting rod. The connecting block is disposed on one end of the scraper body near the pressure plate. The connecting rod passes through the connecting block in the horizontal direction and abuts against the groove wall of the arc-shaped groove. The scraper body rotates relative to the adjusting plate along the axis of the connecting rod. The two ends of the scraper body in the vertical direction are connected to the pressure plate through the clamping mechanism.

[0014] Preferably, the connecting block has an elongated hole in the vertical direction, the connecting rod passes through the arc-shaped groove and the elongated hole, and the center line of the elongated hole coincides with the center of the arc-shaped groove.

[0015] Preferably, the connector further includes a self-locking nut, which is threadedly connected to the connecting rod. There are two self-locking nuts, which are arranged at both ends of the connecting rod along the axial direction of the connecting rod.

[0016] Preferably, the adjusting plate further includes anti-deviation rods, and there are multiple anti-deviation rods. The multiple anti-deviation rods are evenly spaced on the opposing sides of the two adjusting plates, and the anti-deviation rods extend along the width direction of the scraper body and abut against the scraper body.

[0017] This invention achieves stable control of the angle between the scraper assembly and the chain plate during operation through the cooperation of an angle adjustment mechanism and a clamping mechanism. While maintaining the stability of the scraper assembly, it also improves the adaptability of the scraper to different types and viscous fertilizer particles, extends equipment life, improves production efficiency, and reduces production losses. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an anti-stick scraper according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the mounting bracket according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the scraper assembly according to an embodiment of the present invention.

[0022] Explanation of icon numbers:

[0023] label name label name 1000 Anti-stick scraper 100 Mounting bracket 110 First connecting plate 120 bearing plate 130 Limiting post 200 Angle adjustment mechanism 210 Second connecting plate 220 Adjustment plate 221 arc groove 222 Anti-deviation bar 300 clamping mechanism 310 First elastic element 320 Second elastic element 330 pad 400 scraper assembly 410 scraper body 420 connector 421 Connecting block 422 Connecting rod 423 Self-locking nut

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] like Figures 1-3 As shown, this utility model proposes an anti-stick scraper 1000 for a chain plate dryer, comprising: a mounting bracket 100, which includes a first connecting plate 110 and a pressure plate 120, the first connecting plate 110 and the pressure plate 120 being perpendicularly connected; an angle adjustment mechanism 200, which includes a second connecting plate 210 and an adjusting plate 220, wherein there are two second connecting plates 210, which are symmetrically arranged on the pressure plate 120 along an axis, and the extension direction of the second connecting plates 210 is perpendicular to the pressure plate 120; and there are two adjusting plates 220 corresponding to the number of second connecting plates 210, the two adjusting plates 220 being fixedly arranged on the two second connecting plates 210 facing each other. On one side, two adjusting plates 220 are also provided with arc-shaped grooves 221, the extension direction of which is set along the length direction of the adjusting plate 220; a pressing mechanism 300 is set on the pressure plate 120 near the angle adjusting mechanism 200 and located between the two adjusting plates 220; a scraper assembly 400 is provided, which includes a scraper body 410 and a connector 420. The connector 420 is set at one end of the scraper body 410, and one end of the connector 420 abuts against the groove wall of the arc-shaped groove 221. The scraper body 410 rotates relative to the adjusting plate 220 along the axis of the connector 420. The two ends of the scraper body 410 in the vertical direction are connected to the pressure plate 120 through the pressing mechanism 300.

[0029] In this embodiment, the mounting bracket 100 is L-shaped and includes a first connecting plate 110 and a pressure plate 120. The first connecting plate 110 is fixedly connected to the bracket or housing of the chain plate dryer by fixing bolts, and the surface of the first connecting plate 110 is perpendicular to the movement direction of the chain plate in the chain plate dryer, so that the scraper assembly 400 can scrape off the fertilizer particles adhering to the chain plate. The pressure plate 120 is perpendicularly connected to the first connecting plate 110 and is fixedly set at one end of the first connecting plate 110 by means including but not limited to fixing bolts, integral molding, and welding. When the operator installs, the pressure plate 120 faces the side of the chain plate that moves, and the pressure plate 120 is used to bear the force generated by the scraper assembly 400 when scraping off fertilizer. An angle adjustment mechanism 200 is also connected to the pressure plate 120 to adjust the angle between the scraper assembly 400 and the chain plate. The angle adjustment mechanism 200 is provided with an arc groove 221. The scraper assembly 400 can rotate along the arc groove 221 to achieve angle adjustment between the scraper assembly 400 and the chain plate. Through the adjustment of the angle adjustment mechanism 200, the optimal scraping angle can be adjusted for fertilizers with different humidity, viscosity and particle size to obtain a balance between peeling effect and resistance (wear). The clamping mechanism 300 is used to ensure that the scraper assembly 400 always contacts the chain plate with constant pressure. Even if the scraper assembly 400 is deviated or jumps during the scraping process, it can still be reset and effectively scrape the material, avoiding collision between the scraper assembly 400 and the chain plate and extending the service life of the equipment. The scraper assembly 400 includes a scraper body 410 and a connecting member 420. The end of the scraper body 410 away from the first connecting plate 110 is a cutting edge, which is used to scrape fertilizer. The scraper body 410 is connected to the adjustment plate 220 with an arc groove 221 through the connecting member 420 set at the bottom. The scraper body 410 rotates through the cooperation of the connecting member 420 and the arc groove 221.

[0030] In one embodiment, the pressing mechanism 300 includes a first elastic element 310, a second elastic element 320, and a pad 330. The first elastic element 310, the second elastic element 320, and the pad 330 are all spaced apart along the axis of the pressure plate 120 and all face towards the side closest to the angle adjustment mechanism 200. The first elastic element 310 is disposed on the end of the pressure plate 120 away from the first connecting plate 110, the second elastic element 320 is disposed on the end of the pressure plate 120 close to the first connecting plate 110, and the pad 330 is disposed on the first elastic element 310. Between the second elastic elements 320, the first elastic element 310 and the second elastic element 320 are respectively connected to both ends of the scraper body 410.

[0031] In this embodiment, the first elastic element 310 is a disc spring with high preload (80-140N), and the second elastic element 320 is a column spring with lower preload (40-60N). The first elastic element 310 is disposed on one end of the pressure plate 120 near the cutting edge of the scraper body 410, and the second elastic element 320 is disposed on one end of the pressure plate 120 near the first connecting plate 110. The first elastic element 310 is used to support the cutting edge of the scraper body 410 to achieve the technical effect of scraping fertilizer, and the second elastic element 320 is used to absorb and dampen the vibration and impact generated during the scraping of fertilizer by the scraper body 410. The pad 330 is used to protect the scraper body 410 and prevent it from shaking and colliding with the pressure plate 120 during the scraping of fertilizer.

[0032] In one embodiment, the mounting bracket 100 further includes two limiting posts 130. The two limiting posts 130 are evenly disposed on the pressure plate 120 near one end of the first elastic member 310, spaced apart from the first elastic member 310.

[0033] In this embodiment, the limiting post 130 is disposed on the pressure plate 120 and the two limiting posts 130 are symmetrically arranged along the central axis of the pressure plate 120. The end of the limiting post 130 can be provided with a detachable rubber block. In another embodiment, the end of the limiting post 130 is provided with a rubber sleeve. The limiting post 130 is used to limit the maximum stroke of the scraper body 410 rotating through the arc groove 221, so as to protect the service life of the scraper body 410.

[0034] Understandably, the number of limit posts 130 can be increased or decreased according to actual production needs.

[0035] In one embodiment, the connector 420 includes a connecting block 421 and a connecting rod 422. The connecting block 421 is disposed on one end of the scraper body 410 near the pressure plate 120. The connecting rod 422 passes through the connecting block 421 in the horizontal direction and abuts against the groove wall of the arc groove 221. The scraper body 410 rotates relative to the adjusting plate 220 along the axis of the connecting rod 422. The two ends of the scraper body 410 in the vertical direction are connected to the pressure plate 120 through the clamping mechanism 300.

[0036] In this embodiment, the connecting block 421 is disposed on one end of the scraper body 410 near the pressure plate 120. The connecting rod 422 passes through the connecting block 421 in a horizontal direction. The two ends of the connecting rod 422 in the length direction abut against the arc grooves 221 of the adjusting plates 220 on the left and right sides of the pressure plate 120. When the operator needs to adjust the angle between the scraper body 410 and the chain plate, he first releases the locking of the connecting rod 422 and the arc groove 221, then pushes the scraper body 410 to move along the extension direction of the arc groove 221. After moving to the desired position, the connecting rod 422 is locked to realize the angle adjustment of the scraper body 410.

[0037] Understandably, when dealing with highly viscous, caking fertilizers, the angle needs to be adjusted to a smaller angle so that the scraper body 410 can cut deeper and break the cross-section of the fertilizer's adhesive layer. When dealing with low-viscous, powdery fertilizers, the angle needs to be adjusted to a larger angle so that the blade of the scraper body 410 can slide and peel off the fertilizer, reducing dust. By adjusting the angle between the scraper body 410 and the chain plate, problems such as incomplete scraping or excessive wear caused by a fixed angle in the prior art can be avoided.

[0038] In one embodiment, the connecting block 421 has an elongated hole in the vertical direction, and the connecting rod 422 passes through the arc groove 221 and the elongated hole. The center line of the elongated hole coincides with the center of the arc groove 221.

[0039] In this embodiment, the connecting block 421 is provided with an elongated hole. The elongated hole extends along the length of the scraper body 410 and is perpendicular to the thickness of the scraper. The connecting rod 422 passes through the elongated hole and is inserted into the connecting block 421. When unlocking, the connecting rod 422 can move up and down along the extension direction of the elongated hole, so that the operator can adjust the distance between the scraper body 410 and the chain plate to avoid excessive wear on the equipment.

[0040] Understandably, the alignment of the centerline of the elongated hole with the circle of the curved guide rail ensures that the scraper's rotation trajectory is concentric with the guide rail.

[0041] In one embodiment, the connector 420 further includes a self-locking nut 423, which is threadedly connected to the connecting rod 422. There are two self-locking nuts 423, which are arranged at both ends of the connecting rod 422 along the axial direction of the connecting rod 422.

[0042] In this embodiment, self-locking nuts 423 are disposed at both ends of the connecting rod 422 along its length to lock the position and angle between the connecting rod 422 and the adjusting plate 220. It is understood that the connecting rod 422 has threads with opposite helical angles at both ends, and the self-locking nuts 423 are screwed onto the connecting rod 422 via these threads. Locking with the self-locking nuts 423 prevents the equipment from vibrating or other factors during actual production and processing, thus preventing loosening.

[0043] In another embodiment, the self-locking nut 423 may also be provided with a spring washer, which enhances the locking capability through the synergy of the two nuts and the spring washer.

[0044] In one embodiment, the adjusting plate 220 further includes anti-deviation rods 222. There are multiple anti-deviation rods 222, which are evenly spaced on the opposing sides of the two adjusting plates 220. The anti-deviation rods 222 extend along the width direction of the scraper body 410 and abut against the scraper body 410.

[0045] In this embodiment, the anti-deviation rod 222 is disposed on one side of the two adjusting plates 220 and abuts against the scraper body 410. A rubber sleeve can be fitted onto the end of the anti-deviation rod 222, allowing for an interference fit between the anti-deviation rod 222 and the scraper body 410 through the elasticity of the rubber sleeve. The number of anti-deviation rods 222 can be increased or decreased according to actual production needs. The anti-deviation rod 222 effectively prevents lateral displacement of the scraper body 410.

[0046] This invention achieves adjustable angles between the scraper body and the chain plate according to production needs by connecting the adjusting plate with an arc-shaped groove in the angle adjustment mechanism and the connecting part in the scraper assembly. The clamping mechanism ensures stable control of the scraper body. During operation, the angle and other working conditions between the scraper assembly and the chain plate are stabilized by the clamping and angle adjustment mechanisms. This maintains the stability of the scraper assembly while improving its adaptability to different types and viscosity of fertilizer granules, extending equipment life, increasing production efficiency, and reducing production losses.

[0047] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. An anti-stick scraper for a chain plate dryer, characterized in that, include: The mounting bracket includes a first connecting plate and a pressure plate, wherein the first connecting plate and the pressure plate are perpendicularly connected. An angle adjustment mechanism includes a second connecting plate and an adjustment plate. There are two second connecting plates, which are symmetrically arranged on the pressure plate along an axis, and the extension direction of the second connecting plates is perpendicular to the pressure plate. There are two adjustment plates corresponding to the number of second connecting plates. The two adjustment plates are fixedly arranged on opposite sides of the two second connecting plates. The two adjustment plates are also provided with arc-shaped grooves, and the extension direction of the arc-shaped grooves is arranged along the length direction of the adjustment plate. A clamping mechanism is disposed on the pressure plate on one side close to the angle adjustment mechanism and located between the two adjustment plates; A scraper assembly includes a scraper body and a connector. The connector is disposed at one end of the scraper body and abuts against the wall of the arc-shaped groove. The scraper body rotates relative to the adjusting plate along the axis of the connector. The two ends of the scraper body in the vertical direction are connected to the pressure plate through the clamping mechanism.

2. The anti-stick scraper of the chain plate dryer as described in claim 1, characterized in that, The pressing mechanism includes a first elastic element, a second elastic element, and a pad. The first elastic element, the second elastic element, and the pad are all spaced apart along the axis of the pressure plate and all face the side closer to the angle adjustment mechanism. The first elastic element is disposed on the end of the pressure plate away from the first connecting plate, the second elastic element is disposed on the end of the pressure plate closer to the first connecting plate, and the pad is disposed between the first elastic element and the second elastic element. The first elastic element and the second elastic element are respectively connected to both ends of the scraper body.

3. The anti-stick scraper of the chain plate dryer as described in claim 2, characterized in that, The mounting bracket also includes two limiting posts, which are evenly distributed on the pressure plate near one end of the first elastic element, spaced apart from the first elastic element.

4. The anti-stick scraper of the chain plate dryer as described in claim 3, characterized in that, The connector includes a connecting block and a connecting rod. The connecting block is disposed on one end of the scraper body near the pressure plate. The connecting rod passes through the connecting block in the horizontal direction and abuts against the groove wall of the arc-shaped groove. The scraper body rotates relative to the adjusting plate along the axis of the connecting rod. The two ends of the scraper body in the vertical direction are connected to the pressure plate through the clamping mechanism.

5. The anti-stick scraper of the chain plate dryer as described in claim 4, characterized in that, The connecting block has an elongated hole in the vertical direction, and the connecting rod passes through the arc-shaped groove and the elongated hole. The center line of the elongated hole coincides with the center of the arc-shaped groove.

6. The anti-stick scraper of the chain plate dryer as described in claim 5, characterized in that, The connector also includes a self-locking nut, which is threaded to the connecting rod. There are two self-locking nuts, which are arranged at both ends of the connecting rod along the axial direction of the connecting rod.

7. The anti-stick scraper of the chain plate dryer as described in claim 1, characterized in that, The adjusting plate also includes anti-deviation rods, and there are multiple anti-deviation rods. The multiple anti-deviation rods are evenly spaced on the opposing sides of the two adjusting plates. The anti-deviation rods extend along the width direction of the scraper body and abut against the scraper body.

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