A material thickness monitoring mechanism for a rotary drum production line

Abstract

The utility model discloses a material thickness monitoring mechanism of rotary drum production line relates to chemical fertilizer production equipment technical field, and this material thickness monitoring mechanism of rotary drum production line includes: installation base, floating guide assembly includes slide and slide bush, and slide is vertically through in installation base, and slide bush sets up in installation base, and slide and slide bush slidingly connected, the scraper is set up in one end of slide, and the elastic pre -tensioning sub -assembly includes elastic part and adjusting nut, and elastic part is covered in slide, and adjusting nut is connected with elastic part, and the displacement sensor includes fixed end and measurement end, and fixed end sets up in installation base, and measurement end sets up in fixed end, and measurement end is connected with slide. The utility model discloses the installation base is fixedly arranged on the rotary drum production line and is equipped with floating guide assembly on the installation base, and the floating guide assembly is connected with the scraper and the displacement sensor respectively to realize material thickness detection, has the effect that environmental adaptability is strong, and maintenance cost is low, and mechanical structure reliability is strong.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production equipment technology, and in particular to a material thickness monitoring mechanism for a rotary drum production line. Background Technology

[0002] In the production of fertilizer products, the processes of rotary drum granulation, drying, and cooling are required. The stability of the material layer thickness directly affects product quality and energy consumption during these processes. Excessive material layer thickness can lead to uneven heat exchange, granule agglomeration, or equipment overload; insufficient thickness reduces production efficiency. Currently, the mainstream monitoring methods are manual periodic inspections and mechanical inspection using fixed baffles.

[0003] However, existing technologies for detecting the thickness of fertilizer materials have the following shortcomings: manual inspection has unavoidable lag and subjective errors; fixed baffles are prone to jamming due to material adhesion or deformation due to wear, resulting in poor mechanical structure reliability, lack of anti-sticking design and wear-resistant treatment, and are prone to jamming, deformation and other accidents under corrosive and sticky fertilizer conditions.

[0004] Therefore, there is an urgent need for a material thickness monitoring device that is anti-stick, wear-resistant, environmentally robust, and easy to maintain. Utility Model Content

[0005] The main purpose of this invention is to provide a material thickness monitoring mechanism for a rotary drum production line, which aims to solve the problems of poor environmental robustness and difficulty in maintenance of existing material thickness monitoring mechanisms.

[0006] To achieve the above objectives, the material thickness monitoring mechanism for the rotary drum production line proposed in this utility model includes:

[0007] Mounting base;

[0008] A floating guide assembly includes a slide rod and a sliding sleeve. The slide rod passes vertically through the mounting base, and the sliding sleeve is fixedly disposed on the mounting base. The slide rod and the sliding sleeve are slidably connected, and the axes of the slide rod and the sliding sleeve coincide.

[0009] A scraper is fixedly mounted on the slide rod at one end away from the slide sleeve, and the end of the scraper is provided with a self-cleaning inclined surface;

[0010] An elastic preload assembly includes an elastic element and an adjusting nut. The elastic element is sleeved on the slide rod at one end near the slide sleeve, and the adjusting nut is connected to the elastic element.

[0011] A displacement sensor, comprising a fixed end and a measuring end, wherein the fixed end is fixedly mounted on the mounting base, and the measuring end is disposed on the fixed end away from the scraper, and the measuring end is connected to the slide rod.

[0012] Preferably, the material thickness monitoring mechanism further includes a sealing element, which is connected to the mounting bracket and covers the displacement sensor.

[0013] Preferably, the sealing element includes a sealing cover and an inflation port, the inflation port is disposed on the side wall of the sealing cover, the sealing cover covers the displacement sensor and is fixedly connected to the mounting bracket, and one end of the slide rod passes through the sealing cover.

[0014] Preferably, the seal is further provided with a bellows, which is disposed at the through-hole of the slide rod on the sealing cover.

[0015] Preferably, the material thickness monitoring mechanism further includes a limiting component, which includes a limiting frame and fixing ears. The limiting frame is disposed on the side of the mounting bracket away from the scraper. The limiting frame has a U-shaped structure and covers the end of the slide rod away from the scraper. There are multiple fixing ears, which are fixedly disposed on the periphery of the limiting frame. The limiting frame is connected to the mounting bracket through the fixing ears.

[0016] Preferably, the limiting component further includes a pad, which is fixedly disposed on the limiting frame on the side near the slide bar, and the pad and the slide bar are spaced apart.

[0017] Preferably, the inclination angle of the self-cleaning inclined surface is in the range of 45° to 60°, and the self-cleaning inclined surface forms a continuous curved surface along the extension direction of the scraper.

[0018] This utility model involves fixing a mounting base on a rotary drum production line and installing a floating guide assembly on the mounting base. The floating guide assembly is connected to a scraper and a displacement sensor. The scraper is always suspended above the material and abuts against the top of the material. When the material height changes, it can push the scraper upward and trigger the displacement sensor to detect the material thickness. It has the advantages of strong environmental adaptability, low maintenance cost, and high mechanical structure reliability. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the material thickness monitoring mechanism according to an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional structural schematic diagram of a material thickness monitoring mechanism according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the scraper structure according to an embodiment of the present invention.

[0023] Explanation of icon numbers:

[0024] label name label name 1000 Material thickness monitoring agency 100 Mounting base 200 Floating guide components 210 slide bar 220 Slide 300 scraper 310 Self-cleaning slope 400 Elastic preload assembly 410 elastic element 420 Adjusting nut 500 Displacement sensor 510 Fixed end 520 Measuring end 600 Seals 610 Sealing cover 620 Inflation interface 630 bellows 700 Limiting components 710 Limit bracket 720 Fixed ear 730 pad

[0025] 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

[0026] 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.

[0027] 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.

[0028] 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.

[0029] like Figures 1-3 As shown, this utility model proposes a material thickness monitoring mechanism 1000 for a rotary drum production line, comprising: a mounting base 100; a floating guide assembly 200, the floating guide assembly 200 including a slide rod 210 and a sliding sleeve 220, the slide rod 210 vertically penetrating the mounting base 100, the sliding sleeve 220 fixedly disposed on the mounting base 100, the slide rod 210 and the sliding sleeve 220 being slidably connected and their axes coinciding; and a scraper 300 fixedly disposed on the slide rod 210 at one end away from the sliding sleeve 220, the end of the scraper 300 being provided with... Self-cleaning inclined surface 310; elastic pre-tightening assembly 400, the elastic pre-tightening assembly 400 includes an elastic element 410 and an adjusting nut 420, the elastic element 410 is sleeved on the slide rod 210 near the end of the slide sleeve 220, and the adjusting nut 420 is connected to the elastic element 410; displacement sensor 500, the displacement sensor 500 includes a fixed end 510 and a measuring end 520, the fixed end 510 is fixedly set on the mounting base 100, and the measuring end 520 is set on the fixed end 510 away from the scraper 300, and the measuring end 520 is connected to the slide rod 210.

[0030] In this embodiment, the mounting base 100 is fixed to the side wall of the drum outlet chute by welding or bolting, avoiding the high-temperature and high-wear areas inside the drum, thus providing a rigid, shock-resistant platform. A sliding rod 210 vertically penetrates the mounting base 100, and a sliding sleeve 220 is fixedly mounted at one end of the mounting base 100. The sliding sleeve 220 has a through hole in the vertical direction, and the mounting base 100 has an opening corresponding to the axis of the through hole in the sliding sleeve 220. The sliding rod 210 passes through the through hole and the opening in sequence, allowing it to slide up and down relative to the mounting base 100. The sliding sleeve 220 restricts the direction of movement of the sliding rod 210 and prevents direct contact between the sliding rod 210 and the mounting base 100, reducing frictional resistance and extending equipment life. The scraper 300 is bolted to the end of the slide rod 210 away from the slide sleeve 220 to directly contact the material flow. The elastic element 410 in the elastic pre-tightening assembly 400 is sleeved on the slide rod 210. The adjusting nut 420 is used to control the pre-tightening force of the elastic element 410. The elastic element 410 is used to provide vertical downward pressure to ensure that the bottom end of the scraper 300 always abuts against the material surface, avoiding detachment from the material flow surface or jumping due to temporary material shortage. When the material flow is completely interrupted, the elastic element 410 assists the scraper 300 to reset to the lowest position. When the material thickness is too thick, it will lift the scraper 300 and cause the slide rod 210 to slide vertically upward and trigger the displacement sensor 500. The displacement sensor 500 converts the material thickness into a displacement amount, realizing real-time monitoring of the material thickness. The structure is simple and reliable.

[0031] Understandably, the scraper 300 can be made of wear-resistant and corrosion-resistant polymer materials, including but not limited to polyethylene, to resist the long-term erosion and wear of fertilizer particles, making it difficult for fertilizer materials to adhere, resisting corrosive components in fertilizer, and extending the equipment's lifespan.

[0032] In one embodiment, the material thickness monitoring mechanism further includes a seal 600, which is connected to a mounting bracket and covers the displacement sensor 500.

[0033] In this embodiment, a seal 600 is installed over the displacement sensor 500 to cope with the dusty, humid, and corrosive environment during fertilizer production, thereby extending the sensor's service life. The material of the seal 600 can be selected from, but is not limited to, stainless steel or engineering plastics, depending on actual production needs. An opening is provided at the end of the seal 600 away from the mounting bracket, through which the slide rod 210 moves up and down.

[0034] In one embodiment, the seal 600 includes a sealing cover 610 and an inflation port 620. The inflation port 620 is disposed on the side wall of the sealing cover 610. The sealing cover 610 covers the displacement sensor 500 and is fixedly connected to the mounting bracket. One end of the slide rod 210 passes through the sealing cover 610.

[0035] In this embodiment, the sealing cover 610 has a hemispherical structure. The side wall of the sealing cover 610 is provided with an inflation port 620. The inflation port 620 is provided with a one-way valve. The operator can fill the sealing cover 610 with dry nitrogen or clean air through the inflation port 620 to maintain positive pressure and dryness inside the chamber, thereby further improving the protection against dust and moisture.

[0036] In one embodiment, the seal 600 is further provided with a bellows 630, which is disposed at the through-hole of the slide bar 210 on the sealing cover 610.

[0037] In this embodiment, the bellows 630 is disposed on the axis of the sealing cover 610 and the slide rod 210 passes through it. The material of the bellows 630 can be a metal material including but not limited to stainless steel, copper alloy, etc. When the scraper 300 drives the slide rod 210 to move up and down, the slide rod 210 drives the bellows 630 to compress or extend. During the compression or extension of the bellows 630, the sealing cover 610 can still be isolated from the inside and outside, so that the inside of the sealing cover 610 forms a sealed cavity. With the help of the air inlet 620, the sealing cover 610 is always kept dry and dust-free, thus extending the service life of the equipment.

[0038] In one embodiment, the material thickness monitoring mechanism further includes a limiting component 700, which includes a limiting frame 710 and fixing ears 720. The limiting frame 710 is disposed on the side of the mounting bracket away from the scraper 300. The limiting frame 710 has a U-shaped structure and covers the end of the slide rod 210 away from the scraper 300. There are multiple fixing ears 720, which are fixedly disposed on the periphery of the limiting frame 710. The limiting frame 710 is connected to the mounting bracket through the fixing ears 720.

[0039] In this embodiment, the limiting component 700 is bolted to the mounting bracket. The limiting frame 710 within the limiting component 700 covers the end of the slide rod 210 furthest from the scraper 300. The limiting frame 710 has a U-shaped structure and is used to limit the maximum stroke of the slide rod 210, preventing it from derailing. It is understood that the height of the limiting frame 710 can be adjusted according to actual production needs and the space of the drum production line. The fixing ears 720 have an L-shaped structure, and there are four of them. The four fixing ears 720 are arranged circumferentially around the limiting frame 710. The vertical surfaces of the fixing ears 720 are welded to the limiting frame 710, and the horizontal surfaces of the fixing ears 720 have threaded holes. Bolts pass through these threaded holes and are threadedly connected to the mounting bracket, improving the stability of the mechanical structure.

[0040] In one embodiment, the limiting component 700 further includes a pad 730, which is fixedly disposed on the side of the limiting frame 710 near the slide bar 210, and the pad 730 and the slide bar 210 are spaced apart.

[0041] In this embodiment, the pad 730 is attached to the side of the limiting frame 710 near the slide bar 210 by adhesive or interference fit. The size of the pad 730 is the same as the horizontal size of the limiting frame 710. The material of the pad 730 can be, but is not limited to, polyethylene, sponge, etc. The pad 730 is used to prevent the slide bar 210 from colliding with the limiting frame 710 and extend the service life of the equipment.

[0042] In one embodiment, the inclination angle of the self-cleaning slope 310 is in the range of 45° to 60° and the self-cleaning slope 310 forms a continuous curved surface along the extension direction of the scraper 300.

[0043] In this embodiment, the tilt angle of the self-cleaning inclined surface 310 is parallel to the material flow direction. The self-cleaning inclined surface 310 uses the kinetic energy of the material to achieve continuous scraping. The tilt angle of the self-cleaning inclined surface 310 is 45°. The 45° tilt angle enables the automatic scraping of the adhering material, avoiding material accumulation that may affect measurement accuracy or cause jamming.

[0044] This invention features a fixed mounting base on a rotary drum production line, with a floating guide assembly on the base. The floating guide assembly is connected to a scraper and a displacement sensor. The scraper is always suspended above the material and abuts against the top of the material. When the material height changes, it can push the scraper to move up and down and trigger the displacement sensor. By converting the spatial positional relationship of the material thickness into the displacement of the slide bar, accurate real-time detection of the material thickness is achieved. This invention has the advantages of strong environmental adaptability, low maintenance cost, and high mechanical structure reliability.

[0045] 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. A material thickness monitoring mechanism for a rotary drum production line, characterized in that, include: Mounting base; A floating guide assembly includes a slide rod and a sliding sleeve. The slide rod passes vertically through the mounting base, and the sliding sleeve is fixedly disposed on the mounting base. The slide rod and the sliding sleeve are slidably connected, and the axes of the slide rod and the sliding sleeve coincide. A scraper is fixedly mounted on the slide rod at one end away from the slide sleeve, and the end of the scraper is provided with a self-cleaning inclined surface; An elastic preload assembly includes an elastic element and an adjusting nut. The elastic element is sleeved on the slide rod at one end near the slide sleeve, and the adjusting nut is connected to the elastic element. A displacement sensor, comprising a fixed end and a measuring end, wherein the fixed end is fixedly mounted on the mounting base, and the measuring end is disposed on the fixed end away from the scraper, and the measuring end is connected to the slide rod.

2. The material thickness monitoring mechanism for the rotary drum production line as described in claim 1, characterized in that, The material thickness monitoring mechanism also includes a sealing element, which is connected to the mounting base and covers the displacement sensor.

3. The material thickness monitoring mechanism for the rotary drum production line as described in claim 2, characterized in that, The sealing element includes a sealing cover and an inflation port. The inflation port is located on the side wall of the sealing cover. The sealing cover covers the displacement sensor and is fixedly connected to the mounting base. One end of the slide rod passes through the sealing cover.

4. The material thickness monitoring mechanism for the rotary drum production line as described in claim 3, characterized in that, The sealing element is also provided with a bellows, which is disposed at the through-hole of the slide rod on the sealing cover.

5. The material thickness monitoring mechanism for the rotary drum production line as described in claim 1, characterized in that, The material thickness monitoring mechanism further includes a limiting component, which includes a limiting frame and fixing ears. The limiting frame is disposed on the mounting base on the side away from the scraper. The limiting frame has a U-shaped structure and covers the end of the slide rod away from the scraper. There are multiple fixing ears, which are fixedly disposed on the periphery of the limiting frame. The limiting frame is connected to the mounting base through the fixing ears.

6. The material thickness monitoring mechanism for the rotary drum production line as described in claim 5, characterized in that, The limiting component also includes a pad, which is fixedly disposed on the limiting frame on the side near the slide bar, and the pad and the slide bar are spaced apart.

7. The material thickness monitoring mechanism for the rotary drum production line as described in claim 1, characterized in that, The self-cleaning inclined surface has an inclination angle ranging from 45° to 60° and forms a continuous curved surface along the extension direction of the scraper.

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