Anti-adhesion type desulfurized gypsum belt conveyor

Abstract

The utility model discloses an anti-adhesion type desulfurized gypsum belt conveyor. An ultrasonic cleaning assembly is arranged between every two adjacent upper carrier roller sets. The cleaning assembly achieves positioning adjustment through a sliding block-sliding groove base structure and is matched with a spring pressing mechanism to keep a stable interval. The design is good in cleaning effect and high in adaptability, and the adhesion amount of the conveying belt can be remarkably reduced.

Description

Technical Field

[0001] This utility model relates to the field of building material production equipment technology, specifically to an anti-adhesion desulfurized gypsum belt conveyor. Background Technology

[0002] Traditional belt conveyors face significant technical challenges in existing desulfurized gypsum conveying operations. Due to the unique physicochemical properties of desulfurized gypsum (moisture content 8-12%, pH 4.5-6.5), it readily adheres to the belt surface during transport. Actual operational data shows that after 4 hours of continuous operation, the amount of gypsum adhering to the belt surface can reach 1.5-2.0 kg / m². 2 This results in a ±3% measurement error in the weighing system, severely impacting the precise control of the production process. To maintain normal production, operators need to stop the machine 2-3 times per shift for cleaning, which not only increases labor intensity but also reduces the effective operating rate of the equipment.

[0003] Traditional solutions have significant limitations: First, the high surface energy of ordinary rubber conveyor belts creates strong interaction forces with gypsum particles, exacerbating material adhesion. Second, mechanical scraper-type cleaning devices have inherent defects; insufficient scraper pressure results in poor cleaning, while excessive pressure causes belt surface wear (wear rate reaches 0.1 mm / 100h). Furthermore, existing air-blowing cleaning methods consume large amounts of air, are energy-intensive, and easily generate secondary dust. These technical bottlenecks severely restrict the operating efficiency and economy of desulfurized gypsum conveying systems. Utility Model Content

[0004] In view of the problems and shortcomings of the existing technology, this utility model provides an anti-adhesion desulfurized gypsum belt conveyor.

[0005] The technical solution of this utility model is as follows:

[0006] An anti-adhesion desulfurized gypsum belt conveyor includes a head frame, drive drum, idler drum, support frame, upper idler roller group, lower idler roller, conveyor belt, and double-sided electric plow unloader.

[0007] An anti-adhesion desulfurized gypsum belt conveyor also includes multiple ultrasonic cleaning components arranged along the conveyor belt's moving direction. The ultrasonic cleaning components are located at the middle position between adjacent upper idler roller groups. Each ultrasonic cleaning component includes an ultrasonic transducer and a fixing component that supports the ultrasonic transducer. The ultrasonic transducer can adjust its position on the fixing component along the conveyor belt's moving direction.

[0008] An ultrasonic transducer is in contact with the bottom of the conveyor belt at its top. The fixing assembly includes: a fixing plate, which is used to fix the ultrasonic transducer at its top; a slider, which is connected to the lower part of the fixing plate; and a chute seat, which is fixed on the bracket and extends along the length of the conveyor, and has a chute on its upper part that cooperates with the slider.

[0009] The slide is a T-shaped groove, the slider interface is T-shaped, the top is connected to the fixed plate through the connecting part, the bottom fits with the slide, and there is a fitting gap.

[0010] A spring clamping mechanism is provided between the slider and the slide seat to maintain a constant distance between the ultrasonic transducer and the bottom surface of the conveyor belt.

[0011] The ultrasonic transducer operates at a frequency of 35-45kHz, preferably 40kHz, with an amplitude of 10-30μm.

[0012] The length of the chute seat is 0.5-0.8 times the distance between adjacent upper roller groups.

[0013] The conveyor belt has a composite structure, consisting of a base layer and a surface layer. The base layer is a 1.5-2.5mm thick polyurethane layer, and the surface layer is a 0.3-0.8mm thick fluororubber layer.

[0014] The ultrasonic cleaning assembly also includes a control unit, which controls the operating parameters of the ultrasonic transducer. The control unit includes a PLC controller, a frequency adjustment module, and an overload protection module. The frequency adjustment module is used to automatically adjust the ultrasonic frequency according to the conveyor belt speed, and the overload protection module is used to automatically reduce the frequency when the amplitude exceeds the set value.

[0015] The beneficial effects of this utility model are:

[0016] Scientifically designed cleaning points ensure comprehensive cleaning: Cleaning components are evenly spaced between adjacent upper idler groups along the length of the conveyor. This multi-point distributed layout ensures cleaning coverage across the entire length of the conveyor belt, eliminating the "shadow areas" present in traditional single-point cleaning.

[0017] Composite conveyor belt with dual anti-stick design: In the innovative double-layer conveyor belt structure, the polyurethane base layer provides excellent mechanical strength, while the fluororubber surface layer reduces surface energy.

[0018] Modular design enhances maintainability: The ultrasonic cleaning components adopt a standardized and modular structural design, eliminating the need to disassemble the entire machine for maintenance and significantly reducing downtime losses.

[0019] Intelligent clamping ensures stable performance: The spring clamping mechanism is made of special alloy spring steel and is equipped with a pressure sensor for real-time monitoring, which keeps the distance between the transducer and the conveyor belt stably controlled within the working range. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main view structure of an embodiment;

[0021] Figure 2 for Figure 1 A sectional view of section AA;

[0022] Figure 3 This is a magnified view of a portion of the ultrasonic cleaning component.

[0023] The components represented by the reference numerals in the diagram are:

[0024] 1. Head frame; 2. Drive roller; 3. Idling roller; 4. Support frame; 5. Upper idler roller assembly; 6. Lower idler roller; 7. Conveyor belt; 8. Double-sided electric plow unloader; 9. Ultrasonic cleaning assembly; 91. Ultrasonic transducer; 92. Fixing plate; 93. Spring clamping mechanism; 94. Slider; 95. Slide rail seat. Detailed Implementation

[0025] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0026] Example

[0027] See Figure 1 and Figure 2 A type of anti-adhesion desulfurized gypsum belt conveyor includes core components such as a head frame 1, a drive roller 2, a redirecting roller 3, a support 4, an upper idler roller group 5, a lower idler roller 6, a conveyor belt 7, and double-sided electric plow-type unloaders 8. The head frame 1 supports the drive roller 2, the redirecting roller 3, and the drive unit. The drive roller 2 drives the conveyor belt 7 via a motor. The redirecting roller 3, located at the tail and head, enables the conveyor belt 7 to change direction. The support 4 has a trough-shaped upper idler roller group 5 mounted on its upper part to support the conveyor belt 7, and a flat lower idler roller 6 arranged on its lower part to support the return conveyor belt 7. The conveyor belt 7 uses an anti-adhesion coating for closed-loop operation, and the double-sided electric plow-type unloaders 8 achieve multi-point controllable unloading through liftable plow blades.

[0028] See Figure 1 The anti-adhesion desulfurized gypsum belt conveyor of this utility model also includes multiple ultrasonic cleaning components 9 arranged along the moving direction of the conveyor belt 7, which are set in the middle position between adjacent upper idler roller groups 5. Each ultrasonic cleaning component 9 includes: an ultrasonic transducer 91 and a fixing component supporting the ultrasonic transducer 91. The ultrasonic transducer 91 can move on the fixing component along the moving direction of the conveyor belt 7.

[0029] See Figure 3The ultrasonic transducer 91 is in contact with the top of the conveyor belt 7. The fixing assembly includes: a fixing plate 92, the top of which is used to fix the ultrasonic transducer 91; a slider 94, which is connected to the lower part of the fixing plate 92; and a chute seat 95, which is fixed on the bracket 4 and extends along the length of the conveyor, and has a chute on the upper part that cooperates with the slider 94.

[0030] When the conveyor starts, the ultrasonic transducer 91 begins to operate, generating high-frequency mechanical vibration. This vibration is transmitted directly to the bottom surface of the conveyor belt 7 through the contact surface, using cavitation effect and micro-jet action to peel off the adhered plaster particles. Simultaneously, the spring-loaded clamping mechanism 93 continuously applies a pressure of 20-30N to ensure that the transducer maintains the optimal working distance between itself and the conveyor belt 7. This design achieves non-contact cleaning, avoids mechanical wear, and extends the life of the conveyor belt 7 by more than 40%.

[0031] The chute is a T-shaped groove, and the slider 94 has a T-shaped interface. Its top is connected to the fixed plate 92 via a connecting part, and its bottom mates with the chute, with a clearance between the parts. Vibration and misalignment generated during the operation of the conveyor belt 7 will cause the slider 94 to slide adaptively within the chute seat 95. The T-shaped groove structure allows the slider 94 to move freely within a range of ±5mm, and the clearance design ensures smooth, unobstructed movement.

[0032] A spring clamping mechanism 93 is provided between the slider 94 and the slide seat 95 to maintain a constant distance between the ultrasonic transducer 91 and the bottom surface of the conveyor belt 7.

[0033] The ultrasonic transducer 91 operates at a frequency of 35-45kHz, preferably 40kHz, with an amplitude of 10-30μm. The frequency adjustment module monitors the conveyor belt speed 7 in real time, and the overload protection module can cut off the power within 0.1 seconds upon detecting abnormal vibration. Intelligent adjustment reduces energy consumption by 25% while preventing equipment damage and lowering the failure rate by 80%.

[0034] The length of the chute seat 95 is 0.5-0.8 times the distance between adjacent upper roller groups 5.

[0035] The conveyor belt 7 has a composite structure, consisting of a base layer and a surface layer. The base layer is a 1.5-2.5mm thick polyurethane layer, and the surface layer is a 0.3-0.8mm thick fluororubber layer. The low surface energy of the fluororubber surface layer makes it difficult for plaster to adhere, while the polyurethane base layer provides the necessary mechanical strength. The vibrations generated by ultrasonic cleaning further weaken the bond between the material and the conveyor belt 7. This dual anti-stick design achieves a cleaning efficiency of over 95%, reducing annual maintenance costs by 50,000-80,000 yuan.

[0036] The ultrasonic cleaning assembly 9 also includes a control unit for controlling the operating parameters of the ultrasonic transducer 91. The control unit includes a PLC controller, a frequency adjustment module, and an overload protection module. The frequency adjustment module automatically adjusts the ultrasonic frequency according to the speed of the conveyor belt 7, and the overload protection module automatically reduces the frequency when the amplitude exceeds a set value. The frequency adjustment module monitors the speed of the conveyor belt 7 in real time and automatically adjusts the ultrasonic frequency (adjustable from 35-45kHz) when the speed change exceeds 15%. The overload protection module cuts off the power supply within 0.1 seconds when abnormal vibration is detected.

[0037] The above description represents a preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, all variations, equivalent substitutions, and improvements made without departing from the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. An anti-adhesion desulfurized gypsum belt conveyor, comprising a head frame (1), a drive roller (2), a redirecting roller (3), a support frame (4), an upper idler group (5), a lower idler (6), a conveyor belt (7), and a double-sided electric plow-type unloader (8), characterized in that: It also includes multiple ultrasonic cleaning components (9) arranged along the moving direction of the conveyor belt (7), the ultrasonic cleaning components (9) being located at the middle position between adjacent upper idler groups (5), each ultrasonic cleaning component (9) including: an ultrasonic transducer (91) and a fixing component supporting the ultrasonic transducer (91), the ultrasonic transducer (91) being able to adjust its position on the fixing component along the moving direction of the conveyor belt (7). The top of the ultrasonic transducer (91) is in contact with the bottom of the conveyor belt (7); The fixing component includes: A fixing plate (92) is used to fix the ultrasonic transducer (91) at the top; The slider (94) is connected to the lower part of the fixed plate (92); The slide seat (95) is fixed on the bracket (4) and extends along the length of the conveyor. The upper part is provided with a slide groove that cooperates with the slider (94).

2. The belt conveyor according to claim 1, characterized in that, The slide is a T-shaped groove, and the interface shape of the slider (94) is T-shaped. The top is connected to the fixing plate (92) through the connecting part, and the bottom part is engaged with the slide, and a fitting gap is provided.

3. The belt conveyor according to claim 1 or 2, characterized in that, A spring clamping mechanism (93) is provided between the slider (94) and the slide seat (95) to maintain a constant distance between the ultrasonic transducer (91) and the bottom surface of the conveyor belt (7).

4. The belt conveyor according to claim 1, characterized in that, The ultrasonic transducer (91) operates at a frequency of 35-45kHz, preferably 40kHz, and has an amplitude of 10-30μm.

5. The belt conveyor according to claim 1, characterized in that, The length of the chute seat (95) is 0.5-0.8 times the distance between adjacent upper roller groups (5).

6. The belt conveyor according to claim 1, characterized in that, The conveyor belt (7) is a composite structure, including a base layer and a surface layer. The base layer is a polyurethane layer and the surface layer is a fluororubber layer.

7. The belt conveyor according to claim 1, characterized in that, The ultrasonic cleaning assembly (9) also includes a control unit, which is used to control the operating parameters of the ultrasonic transducer (91). The control unit includes a PLC controller, a frequency adjustment module and an overload protection module. The frequency adjustment module is used to automatically adjust the ultrasonic frequency according to the speed of the conveyor belt (7), and the overload protection module is used to automatically reduce the frequency when the amplitude exceeds the set value.

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