Rolling type mesh belt online filtering device

Abstract

The utility model discloses a rolling type net belt online filtering device which comprises a rack box, an air inlet pipeline connected to the top of the rack box, and an air outlet pipeline connected to the side face of the rack box. The rolling type filtering structure is arranged in the rack box, is used for filtering and intercepting fibers and particles in the negative pressure air and comprises an air collecting cover and a filtering net belt arranged on the outer surface of the air collecting cover, and the filtering net belt is driven by the driving structure to be conveyed around the outer surface of the air collecting cover; and the cleaning structure comprises a high-pressure washing nozzle and a cleaning rolling brush and is used for cleaning the filter screen belt. According to the utility model, the filter screen moving continuously is used for filtering, and the high-pressure washing nozzle and the cleaning rolling brush are used for cleaning, so that online filtering and automatic cleaning of negative-pressure air of the cotton collecting machine are completely realized, manual operation and shutdown are not needed in the whole process, and the energy consumption and the labor cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cotton collectors, in particular to a rolling mesh belt online filtering device. Background Art

[0002] Rock wool, a new type of non-combustible, environmentally friendly material, has been a major green, environmentally friendly thermal insulation material used in domestic and international markets in recent years. The production process involves melting solid raw materials such as basalt, silica, and slag in a cupola or electric furnace at temperatures of 1200-1600°C. The molten liquid is then spun into fibers by a centrifuge rotating at 7200 rpm. After being cooled by wind, the released sizing fibers are collected by negative pressure air onto the mesh belt of a drum or triangular mesh belt collector. The products then enter a pleating machine and subsequent processing steps before being processed into finished products.

[0003] The negative pressure air of the cotton collector comes from the induced draft of a high-power centrifugal fan. To ensure normal production, the negative pressure air volume is usually designed to be 180,000-350,000m3 / h. The negative pressure air needs to be discharged into the atmosphere through the induced draft fan outlet. However, due to the inherent characteristics of the production process equipment, the discharged negative pressure air may contain sizing microfibers and slag ball particles that have penetrated the cotton collector. Due to environmental protection requirements and production environment requirements, the gas containing fibers and particles cannot be discharged directly into the atmosphere. Therefore, the negative pressure air containing fibers and particles needs to be filtered and then discharged through the fan.

[0004] The traditional filtering device for the negative pressure air of the cotton collector is a filter chamber structure. This technology uses a cast-in-place concrete structure with a frame and filter cotton inside.

[0005] Due to the simple structure of the filter chamber itself, during the production process, cotton wool and particulate matter accumulate on the surface of the filter cotton under the action of negative pressure. As the production time continues to increase, the accumulation on the surface of the filter cotton will become thicker and thicker. When the thickness of the accumulation reaches a certain level, the system resistance of the negative pressure air chamber will also increase accordingly. At this time, in order to ensure the negative pressure of the cotton collector, the frequency of the induced draft fan must be increased to overcome the resistance of the filter chamber, which will increase power consumption.

[0006] When the filter cotton deposits grow to a certain thickness, the designed pressure of the induced draft fan cannot overcome the system resistance of the negative pressure air filter chamber. The air volume of the induced draft fan decreases, and the cotton collector cannot work normally. At this time, the entire line must be shut down, and the filter chamber door must be opened for manual cleaning. Generally, the shutdown cleaning and replacement of new filter cotton takes 24-48 hours. This will cause significant economic losses and waste of manpower to the factory.

[0007] The difficulty of using the original filter chamber is a common problem faced by mineral wool manufacturers. Some companies have tried to increase the volume of the filter chamber to increase the area of ​​the filter chamber. However, this can only slightly extend the startup time and does not fundamentally solve the problem of filter cotton cleaning.

[0008] Therefore, there are currently no significant breakthroughs in negative pressure air filtration within cotton collection systems. The fundamental reason is that negative pressure air volumes are high (200,000-350,000 m³ / h), and the negative pressure air contains filamentous fibers. Furthermore, the fibers are sizing-treated, resulting in a certain degree of adhesion. Therefore, traditional bag-type or cartridge-type dust removal equipment is fundamentally incapable of effectively handling this type of gas.

[0009] The common practice for negative pressure air filtration is still the traditional filter chamber structure mentioned above, which requires regular shutdown for cleaning, resulting in high energy consumption, large economic losses, and waste of manpower. Utility Model Content

[0010] The purpose of the utility model is to provide a rolling mesh belt online filtering device to solve the technical problems of high energy consumption, large economic losses and waste of manpower in the negative pressure air filtering structure in the prior art.

[0011] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0012] A rolling mesh belt online filtering device, comprising:

[0013] A rack box, with an air inlet duct connected to the top of the rack box and an air outlet duct connected to the side of the rack box;

[0014] A rolling filter structure is provided inside the frame box and is used to filter and intercept fibers and particulate matter inside the negative pressure air. The structure includes an air collecting hood and a filter belt provided on the outer surface of the air collecting hood. The filter belt is driven by the driving structure to move around the outer surface of the air collecting hood.

[0015] Cleaning structure, including high-pressure flushing nozzle and cleaning roller brush, used to clean the filter belt;

[0016] Among them, after the negative pressure air containing fibers and particles enters the rack box through the air inlet duct, the fibers and particles are intercepted on the surface of the filter belt. As the filter belt is transported, the fibers and particles are evenly distributed over the entire filter belt. At the same time, the cleaning structure cleans the filter belt during transportation.

[0017] As a preferred solution of the present invention, a plurality of ventilation slots are provided on the top of the wind collecting hood, the air outlet duct is connected to the wind collecting hood, and the filtered negative pressure air is discharged from the air outlet duct.

[0018] As a preferred solution of the present invention, a driving roller for driving the filter belt to be transmitted is provided on one side of the interior of the filter belt, a driven roller is provided on the other side of the interior of the filter belt, and a driving reducer is installed on the inner wall of the frame box. The driving reducer drives the driving roller to rotate through a belt, thereby driving the filter belt to be transmitted.

[0019] As a preferred solution of the present invention, the high-pressure flushing nozzle cleans the filter belt by spraying high-pressure water;

[0020] A water collecting tank is provided inside the frame box, one side of the water collecting tank is connected to a high-pressure flushing pump, and the high-pressure flushing nozzle is connected to the output end of the high-pressure flushing pump through a high-pressure flushing water pipe.

[0021] As a preferred solution of the present invention, the cleaning roller brush cleans the filter belt by rotating;

[0022] The cleaning roller brush includes a central shaft and bristles arranged on the outer surface of the central shaft. When the central shaft is driven by the driving structure to rotate, the bristles are driven to roll, so that the bristles penetrate the filter belt and clean the filter belt.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The utility model filters through the continuously moving filter mesh and cleans through the high-pressure flushing nozzle and the cleaning roller brush, thereby completely realizing the online filtration and automatic cleaning of the negative pressure air of the cotton collector. No manual operation is required throughout the process, and no shutdown is required, which greatly reduces energy consumption and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0026] Figure 1 A schematic diagram of the overall structure provided by the utility model;

[0027] Figure 2 For this utility model Figure 1 A magnified view of the structure of part A;

[0028] Figure 3 For this utility model Figure 1 A top view of

[0029] Figure 4 It is a top view of the wind collecting hood of the present utility model.

[0030] The numbers in the figure represent the following:

[0031] 1. Frame box; 2. Air collecting hood; 3. Driven roller; 4. Driving roller; 5. Driving reducer; 6. Filter belt; 8. Air outlet duct; 10. Air inlet duct; 15. Water collecting tank; 16. High-pressure flushing water pipe; 17. High-pressure flushing pump; 18. High-pressure flushing nozzle; 19. Cleaning roller brush; 21. Ventilation slot. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1 and Figure 2 As shown, the present invention provides a rolling mesh belt online filtering device, which mainly filters negative pressure air through a rolling filtering structure and cleans the filter mesh belt 6 online through a cleaning structure.

[0034] The rolling mesh belt online filter device includes:

[0035] A rack box 1, with an air inlet duct 10 connected to the top of the rack box 1 and an air outlet duct 8 connected to the side of the rack box 1;

[0036] The rolling filter structure is arranged inside the frame box 1 and is used to filter and intercept fibers and particulate matter inside the negative pressure air. It includes an air collecting cover 2 and a filter belt 6 arranged on the outer surface of the air collecting cover 2. The filter belt 6 is driven by the driving structure to be transported around the outer surface of the air collecting cover 2;

[0037] A cleaning structure, including a high-pressure flushing nozzle 18 and a cleaning roller brush 19, is used to clean the filter belt 6;

[0038] Among them, after the negative pressure wind containing fibers and particulate matter enters the rack box 1 through the air inlet pipe 10, the fibers and particulate matter are trapped on the surface of the filter belt 6, and as the filter belt 6 is transported, the fibers and particulate matter are evenly distributed over the entire filter belt 6, and at the same time, the cleaning structure cleans the filter belt 6 during transportation.

[0039] At present, the common practice for negative pressure air filtration is still the traditional filter chamber structure, which requires regular shutdown for cleaning, resulting in high energy consumption, large economic losses, and waste of manpower. Therefore, it is necessary to develop a rolling mesh belt online filter device.

[0040] This embodiment filters through the continuously moving filter belt 6 and cleans through the high-pressure flushing nozzle 18 and the cleaning roller brush 19, thereby completely realizing the online filtration and automatic cleaning of the negative pressure air of the cotton collector. No manual operation is required throughout the process, and no shutdown is required, which greatly reduces energy consumption and labor costs.

[0041] In actual use, 1. Negative pressure air containing fibers and particles enters the rack box 1 from the air inlet duct 10, and then enters the interior of the wind collecting hood 2. The fibers and particles inside the negative pressure air are intercepted by the filter belt 6 on the top of the wind collecting hood 2. Since the filter belt 6 is in a conveying state, the fibers and particles cover the outer surface of the filter belt 6;

[0042] 2. Continuously clean the filter belt 6 through the high-pressure flushing nozzle 18 and the cleaning roller brush 19;

[0043] 3. As the filter belt 6 is transported, the cleaned filter belt 6 returns to the top of the wind collecting hood 2 to filter the fibers and particulate matter inside the negative pressure air. This cycle continues, and while filtering the negative pressure air, the filter belt 6 is automatically cleaned simultaneously.

[0044] As a groundbreaking new technology and process, this device fundamentally solves the problem of regular production line shutdowns caused by the need for manual cleaning of traditional filter chamber structures, filling a gap in this field both domestically and internationally.

[0045] This device automatically removes filamentous fibers and particulate matter deposited on the surface of the filter belt 6 during continuous operation, thereby regenerating the filter belt 6. Therefore, during operation, the accumulated material on the filter layer does not accumulate continuously due to extended production time, thereby preventing the equipment from continuously increasing its operating resistance. During operation, the system resistance of the device remains relatively constant. Therefore, during operation of the cotton collector, there is no need to increase the operating frequency of the induced draft fan motor due to increased equipment resistance, thereby achieving energy conservation and consumption reduction.

[0046] As a preferred embodiment of this embodiment, a plurality of ventilation slots 21 are provided on the top of the wind collecting hood 2 , and the air outlet pipe 8 is connected to the wind collecting hood 2 , and the filtered negative pressure air is discharged from the air outlet pipe 8 .

[0047] The negative pressure air entering the rack box 1 through the air inlet duct 10 enters the inside of the wind collecting hood 2 after passing through the ventilation slots 21, and is then discharged from the air outlet duct 8. At the same time, the fibers and particulate matter in the negative pressure air are filtered by the filter belt 6 on the top of the wind collecting hood 2.

[0048] The driving structure for driving the filter belt 6 is as follows:

[0049] A driving roller 4 for driving the filter mesh belt 6 is provided on one side of the inside of the filter mesh belt 6, a driven roller 3 is provided on the other side of the inside of the filter mesh belt 6, and a driving reducer 5 is installed on the inner wall of the frame box 1. The driving reducer 5 drives the driving roller 4 to rotate through a belt, thereby driving the filter mesh belt 6 for transmission.

[0050] Start the driving reducer 5 to drive the driving roller 4 to rotate, thereby driving the filter belt 6 to transmit.

[0051] The specific structure of the cleaning structure is as follows: the high-pressure flushing nozzle 18 cleans the filter belt 6 by spraying high-pressure water;

[0052] At present, the negative pressure working air volume is large (200,000-350,000m3 / h), and the negative pressure air contains filamentous fibers. Because the fiber surface has been treated with sizing and has a certain adhesiveness, traditional bag-type or cartridge-type dust removal equipment cannot effectively handle this gas.

[0053] Because the glue applied to the fiber surface is water-soluble, it has strong adhesion only after being cured at high temperature. In view of the characteristics of this glue, this device innovatively uses high-pressure water to flush it, which can clean it thoroughly.

[0054] A water collecting tank 15 is provided inside the frame box 1 , one side of the water collecting tank 15 is connected to a high-pressure flushing pump 17 , and the high-pressure flushing nozzle 18 is connected to the output end of the high-pressure flushing pump 17 through a high-pressure flushing water pipe 16 .

[0055] The high-pressure flushing pump 17 transports the water inside the water collecting tank 15 to the high-pressure flushing nozzle 18 through the high-pressure flushing water pipe 16. The high-pressure flushing nozzle 18 sprays high-pressure water to flush the glue on the filter mesh belt 6, thereby achieving the purpose of cleaning the filter mesh belt 6.

[0056] The cleaning roller brush 19 cleans the filter belt 6 by rotating;

[0057] The cleaning roller brush 19 includes a central shaft and bristles arranged on the outer surface of the central shaft. When the central shaft rotates under the drive of the driving structure, the bristles are driven to roll, so that the bristles penetrate the filter belt 6 and clean the filter belt 6.

[0058] After being washed by high-pressure water, some glue will remain on the filter belt 6. The rotating bristles will clean the remaining glue and completely clean the filter belt 6. The bristles can penetrate the filter belt 6 and clean the gaps on the filter belt 6.

[0059] The combined effect of the high-pressure flushing nozzle 18 and the cleaning roller brush 19 improves the cleaning effect of the filter belt 6, and as the filter belt 6 is conveyed, an online cleaning effect is achieved.

[0060] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A rolling mesh belt online filtering device, characterized in that: include: A rack box (1), an air inlet duct (10) connected to the top of the rack box (1), and an air outlet duct (8) connected to the side of the rack box (1); A rolling filter structure is arranged inside the frame box (1) and is used to filter and intercept fibers and particulate matter inside the negative pressure air, comprising an air collecting hood (2) and a filter mesh belt (6) arranged on the outer surface of the air collecting hood (2), wherein the filter mesh belt (6) is driven by a driving structure to be transported around the outer surface of the air collecting hood (2); A cleaning structure, comprising a high-pressure flushing nozzle (18) and a cleaning roller brush (19), for cleaning the filter belt (6); After the negative pressure wind containing fibers and particles enters the rack box (1) through the air inlet duct (10), the fibers and particles are retained on the surface of the filter mesh belt (6). As the filter mesh belt (6) is transported, the fibers and particles are evenly distributed over the entire filter mesh belt (6), and at the same time, the cleaning structure cleans the filter mesh belt (6) during transport.

2. The rolling mesh belt online filtering device according to claim 1, characterized in that: A plurality of ventilation slots (21) are provided on the top of the wind collecting hood (2), and the air outlet pipe (8) is connected to the wind collecting hood (2), and the filtered negative pressure air is discharged from the air outlet pipe (8).

3. A rolling mesh belt online filtering device according to claim 1 or 2, characterized in that: A driving roller (4) for driving the filter mesh belt (6) to transmit is provided on one side of the interior of the filter mesh belt (6), a driven roller (3) is provided on the other side of the interior of the filter mesh belt (6), and a driving reducer (5) is installed on the inner wall of the frame box (1). The driving reducer (5) drives the driving roller (4) to rotate through a belt, thereby driving the filter mesh belt (6) to transmit.

4. The rolling mesh belt online filtering device according to claim 3, characterized in that: The high-pressure flushing nozzle (18) cleans the filter belt (6) by spraying high-pressure water; A water collecting box (15) is provided inside the frame box (1), one side of the water collecting box (15) is connected to a high-pressure flushing pump (17), and the high-pressure flushing nozzle (18) is connected to the output end of the high-pressure flushing pump (17) through a high-pressure flushing water pipe (16).

5. The rolling mesh belt online filtering device according to claim 3, characterized in that: The cleaning roller brush (19) cleans the filter belt (6) by rotating; The cleaning roller brush (19) comprises a central shaft and bristles arranged on the outer surface of the central shaft. When the spindle is driven by the driving structure to rotate, the bristles are driven to roll, so that the bristles penetrate the filter belt (6). And clean the filter belt (6).

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