Filter cloth cleaning equipment for desulfurized gypsum vacuum belt conveyor

Abstract

The utility model discloses filter cloth cleaning equipment for a desulfurized gypsum vacuum belt conveyor. Filter cloth is arranged on a vacuum belt conveyor assembly; a plurality of guide wheels are distributed on the outer side of the vacuum belt conveyor assembly and are respectively distributed along a filter cloth conveying track; the plurality of guide wheels are rotationally connected with the filter cloth respectively; scrapers are distributed on the outer side of the filter cloth; the scraper is in threaded connection with the scraper bracket; a gap is reserved between the outer end surface of the blade part of the scraper and the outer end surface of the filter cloth; rotary rolling brush sweepers are distributed on the outer side of the filter cloth; the outer end surface of the rotary rolling brush sweeper is in contact with the outer end surface of the filter cloth; the rotary rolling brush sweeper is located below the scraper, and a containing space is reserved between the rotary rolling brush sweeper and the scraper in the horizontal direction. According to the filter cloth cleaning equipment for the desulfurized gypsum vacuum belt conveyor, the scraper and the rotary rolling brush cleaner are used in cooperation, gypsum on the filter cloth can be cleaned up, the filter cloth is kept clean, and therefore the dewatering efficiency is improved, and the service life of the filter cloth is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cleaning equipment, in particular to a kind of desulfurization gypsum vacuum belt machine filter cloth cleaning equipment. BACKGROUND

[0002] In the vacuum belt machine of desulfurization gypsum, the main role of scraper is to remove the residual gypsum particles on the filter cloth. During the dehydration process, after the gypsum slurry is vacuumed, some gypsum particles will be left on the filter cloth. The scraper removes these residues by contacting the filter cloth, keeping the filter cloth clean, thereby improving the dehydration efficiency and prolonging the service life of the filter cloth. In addition, the scraper can also thin the gypsum layer on the filter cloth, increase the water permeability area, promote further dehydration of gypsum, and ensure the uniformity and efficiency of the dehydration process.

[0003] The scraper is also crucial for the quality control of gypsum products. Through the scraping action of the scraper, the gypsum layer can be scraped to a uniform thickness, ensuring that the moisture content of the gypsum filter cake is within the specified range, thereby ensuring the stable quality of the gypsum products and meeting the requirements of subsequent applications. At the same time, the scraper can also remove hard impurities or foreign matter on the filter cloth during the dehydration process, preventing them from damaging the filter cloth and belt, protecting the equipment, reducing maintenance costs, and prolonging the service life.

[0004] To ensure the effective operation of the scraper, it needs to be regularly maintained and adjusted. Check the wear of the scraper and replace the severely worn scraper in time, and adjust the gap between the scraper and the filter cloth to ensure the best working condition of the scraper. Through reasonable maintenance and adjustment, the scraper plays an important role in the desulfurization gypsum vacuum belt machine, improving the dehydration efficiency and the quality of gypsum products, protecting the equipment, and reducing production costs.

[0005] However, in actual operation, there are functional deviations of the scraper due to installation process deviation, scraper maintenance deficiency and scraper wear, etc. Long-term, it may cause the following two problems: one is that it may cause the filter cloth flushing effect to be poor, causing the gypsum moisture content to increase, and in severe cases, the gypsum utilization rate may decrease; two is that due to the decline in scraper efficiency, part of the gypsum enters the desulfurization system again, causing the slurry density of the absorption tower to be high, reducing the desulfurization efficiency, increasing system energy consumption and environmental protection risk. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a kind of desulfurization gypsum vacuum belt machine filter cloth cleaning equipment.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a kind of desulfurization gypsum vacuum belt conveyor filter cloth cleaning equipment, including vacuum belt conveyor assembly, filter cloth, guide wheel, scraper and rotary brush cleaner;The vacuum belt conveyor assembly is equipped with filter cloth, and the vacuum belt conveyor assembly drives filter cloth horizontal motion;The outer side of the vacuum belt conveyor assembly is distributed with several guide wheels, and the several guide wheels are distributed along filter cloth transmission track respectively;Several guide wheels are rotatably connected with the filter cloth respectively;The outer side of the filter cloth away from the direction of vacuum belt conveyor assembly is distributed with scraper;The scraper is threadedly connected with scraper support;Gap is left between the outer end surface of the blade part of the scraper and the outer end surface of the filter cloth;The outer side of the filter cloth away from the direction of vacuum belt conveyor assembly is distributed with rotary brush cleaner;The outer end surface of the rotary brush cleaner is in contact with the outer end surface of the filter cloth;The rotary brush cleaner is below the scraper, and the rotary brush cleaner and the scraper leave accommodation space in horizontal direction.

[0009] Further, the vacuum belt conveyor assembly includes a main drive shaft, a main drive shaft support, a belt and a motor.

[0010] The motor is fixedly arranged on the main drive shaft support, the output shaft of the motor is fixedly connected with the main drive shaft, the main drive shaft is wrapped with the belt, and the filter cloth is placed on the upper end of the belt.

[0011] Further, the middle part of the scraper and the scraper support are provided with thread holes penetrating each other, the thread holes are threadedly connected with bolts, and the end of the bolt penetrating the scraper support is threadedly connected with a nut.

[0012] Further, the gap is 1mm-3mm.

[0013] Further, the rotary brush cleaner includes a double-speed motor, a cleaner, and a cleaner support.

[0014] The double-speed motor is fixedly arranged on the cleaner support, the output shaft of the double-speed motor is fixedly connected with the cleaner, the outer circumferential surface of the cleaner is distributed with bristles, and the outer end surface of the bristles is in contact with the outer end surface of the filter cloth.

[0015] Further, the guide wheels are rotatably arranged on guide wheel supports.

[0016] Further, the rotary brush cleaner is distributed with a mud guard away from the direction of the vacuum belt conveyor assembly.

[0017] Further, the surface of the mud guard is provided with a polytetrafluoroethylene coating.

[0018] Compared with the prior art, the desulfurization gypsum vacuum belt machine filter cloth cleaning equipment has the advantages that the polyurethane scraper is used in cooperation with the rotary roller brush cleaner, the gypsum on the filter cloth can be completely removed, the filter cloth is kept clean, the dehydration efficiency is improved, and the service life of the filter cloth is prolonged; even if the scraper has functional deviation due to installation process deviation, scraper maintenance loss and scraper wear, the filter cloth can still be guaranteed to have good washing effect, the water content of the gypsum is prevented from being increased, the utilization rate of the gypsum is improved, meanwhile, part of the gypsum is prevented from re-entering the desulfurization system, and the system energy consumption and environmental protection risk are prevented from being increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structural schematic view of a desulfurization gypsum vacuum belt machine filter cloth cleaning equipment provided by the utility model embodiment is shown.

[0020] In the figure: 1, filter cloth; 2, guide wheel; 3, scraper; 4, main drive shaft; 5, main drive shaft support; 6, belt; 7, motor; 8, guide wheel support; 9, bolt; 10, double-speed motor; 11, cleaner; 12, cleaner support; 13, mudguard; 14, scraper support. DETAILED DESCRIPTION

[0021] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0022] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the directions or position relations indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Example:

[0025] like Figure 1 As shown, a filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor includes a vacuum belt conveyor assembly, a filter cloth 1, a guide wheel 2, a scraper 3, and a rotating roller brush cleaner.

[0026] The vacuum belt conveyor assembly includes a main drive shaft 4, a main drive shaft bracket 5, a belt 6, and a motor 7. The motor 7 is fixedly mounted on the main drive shaft bracket 5; the output shaft of the motor 7 is fixedly connected to the main drive shaft 4; the main drive shaft 4 is covered with a belt 6; a filter cloth 1 is placed on the upper end of the belt 6.

[0027] When the output shaft of motor 7 rotates, it drives belt 6 to move, and belt 6 drives filter cloth 1 to move horizontally. Several guide wheels 2 are distributed on the outer side of the vacuum belt conveyor assembly. The guide wheels 2 are distributed along the conveying trajectory of filter cloth 1 and are rotatably connected to filter cloth 1. The guide wheels 2 are rotatably mounted on guide wheel bracket 8.

[0028] Scrapers 3 are distributed on the outer side of the filter cloth 1 away from the vacuum conveyor assembly. The scrapers 3 are made of polyurethane. A through-hole is formed in the middle of the scraper 3 and on the scraper support 14; a bolt 9 is threaded onto the through-hole, and a nut is threaded onto one end of the bolt 9 extending out of the scraper support 14. The scraper 3 can rotate along its central threaded hole, and its position is fixed by the bolt 9 when rotated to a suitable position. A gap of 1mm to 3mm is left between the outer end face of the blade of the scraper 3 and the outer end face of the filter cloth 1.

[0029] A rotary brush cleaner is distributed on the outer side of the filter cloth 1 away from the vacuum conveyor assembly. The rotary brush cleaner includes a dual-speed motor 10, a cleaner 11, and a cleaner bracket 12. The dual-speed motor 10 is fixedly mounted on the cleaner bracket 12. The output shaft of the dual-speed motor 10 is fixedly connected to the cleaner 11. Bristles are distributed on the outer circumference of the cleaner 11. The outer end face of the bristles contacts the outer end face of the filter cloth 1. The bristles are made of nylon and have slight contact with the filter cloth 1. The nylon bristles have high wear resistance, are non-stick, and do not form scale, which is beneficial for the use of desulfurized gypsum in the working environment.

[0030] Both the dual-speed motor 10 and the motor 7 can be electrically connected to the PLC controller, which in turn enables remote control linkage with the DCS. During normal operation, the sweeper 11 and the nylon brush run at 2-3 rpm, with the brush rotating in the opposite direction to the filter cloth 1.

[0031] The rotary brush cleaner is located below the scraper 3. To prevent the plaster from the scraper 3 from falling directly onto the cleaner 11 below, the rotary brush cleaner and the scraper 3 are spaced a certain distance apart in the horizontal direction.

[0032] In order to prevent the gypsum slurry that the sweeper 11 can carry from splashing, improve the cleaning condition of the periphery of the sweeper 11, a stainless steel baffle is arranged outside the sweeper 11. The surface of the fender 13 is coated with a polytetrafluoroethylene coating.

[0033] Working principle: under normal circumstances, after the scraper 3 with a certain gap is adjusted to the right position, the PLC controller controls the double-speed motor 10 and the motor 7 to start working, the double-speed motor 10 and the motor 7 normally run, and the polyurethane scraper 3 is used in cooperation with the rotary brush sweeper 11; even if the scraper 3 has functional deviation due to installation process deviation, scraper 3 maintenance loss and scraper 3 wear and tear and other factors, the rotary brush sweeper 11 can still ensure good washing effect of the filter cloth 1, avoid increase of gypsum moisture content, improve gypsum utilization rate, at the same time, avoid part of the gypsum entering the desulfurization system again, avoid increase of system energy consumption and environmental protection risk.

[0034] If it is found during the tour that there are more sundries on the cleaning brush, the DCS sends an instruction to the PLC controller, the PLC controller controls the motor 7 to stop working, controls the double-speed motor 10 to run at high speed for a short time, and realizes self-cleaning of the brush by using the action of centrifugal force;

[0035] When the rotary brush sweeper 11 fails, the PLC controller controls the double-speed motor 10 and the motor 7 to stop working, and then adjusts the gap of the original scraper 3 of the system, so that the scraper 3 contacts the filter cloth 1, and finally the PLC controller controls the motor 7 to start working.

[0036] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor, characterized in that, The system includes a vacuum conveyor assembly, a filter cloth (1), guide wheels (2), a scraper (3), and a rotary brush cleaner. The filter cloth (1) is mounted on the vacuum conveyor assembly, which drives the filter cloth (1) to move horizontally. Several guide wheels (2) are distributed on the outer side of the vacuum conveyor assembly, and these guide wheels (2) are distributed along the conveying trajectory of the filter cloth (1). The guide wheels (2) are rotatably connected to the filter cloth (1). The filter cloth (1) is located away from the vacuum conveyor assembly. A scraper (3) is distributed on the side; the scraper (3) and the scraper support (14) are threaded together; there is a gap between the outer end face of the blade of the scraper (3) and the outer end face of the filter cloth (1); a rotary roller brush cleaner is distributed on the outer side of the filter cloth (1) away from the vacuum belt conveyor assembly; the outer end face of the rotary roller brush cleaner is in contact with the outer end face of the filter cloth (1); the rotary roller brush cleaner is located below the scraper (3), and there is a space for the rotary roller brush cleaner and the scraper (3) in the horizontal direction.

2. The filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor according to claim 1, characterized in that, The vacuum belt conveyor assembly includes a main drive shaft (4), a main drive shaft bracket (5), a belt (6), and a motor (7); The motor (7) is fixedly mounted on the main drive shaft bracket (5); the output shaft of the motor (7) is fixedly connected to the main drive shaft (4); the main drive shaft (4) is covered with a belt (6); a filter cloth (1) is placed on the upper end of the belt (6).

3. The filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor according to claim 1, characterized in that, The scraper (3) and the scraper support (14) have interconnected threaded holes; bolts (9) are threadedly connected to the interconnected threaded holes, and a nut is threadedly connected to one end of the bolt (9) that extends out of the scraper support (14).

4. The filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor according to claim 1, characterized in that, The gap is 1mm to 3mm.

5. The filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor according to claim 1, characterized in that, The rotary brush cleaner includes a dual-speed motor (10), a cleaner (11), and a cleaner bracket (12); The dual-speed motor (10) is fixedly mounted on the cleaner bracket (12); the output shaft of the dual-speed motor (10) is fixedly connected to the cleaner (11); the outer circumferential surface of the cleaner (11) is covered with bristles; the outer end face of the bristles is in contact with the outer end face of the filter cloth (1).

6. The filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor according to claim 1, characterized in that, The guide wheel (2) is rotatably mounted on the guide wheel bracket (8).

7. The filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor according to claim 1, characterized in that, The rotating brush cleaner has mudguards (13) distributed on its outer side away from the vacuum conveyor assembly.

8. The filter cloth cleaning device for a desulfurized gypsum vacuum belt conveyor according to claim 7, characterized in that, The surface of the mudguard (13) is coated with polytetrafluoroethylene.

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