A high-dry fiber dewatering machine without filter cloth

Abstract

The utility model relates to fiber dehydration equipment field discloses a high dry fiber dehydrator without filter cloth, including mounting bracket, the bearing fixed mounting of bearing in mounting bracket outside has transmission dehydration roller, transmission dehydration roller right side fixedly connected with speed reducer through the shaft coupling, the speed reducer passes through the front side transmission and is connected with frequency conversion motor, the speed reducer and frequency conversion motor top fixedly connected with support frame. In the utility model, through the cooperation of transmission dehydration roller and dehydration component, dehydration component contains four groups of compression roller, the area that stainless steel sieve plate of compression roller and transmission dehydration roller contacted forms first to fourth squeezing area from front to back in proper order, and pressure increases in proper order, and cooperate with the outside stainless steel sieve plate of transmission dehydration roller, can make material discharge liquid when receiving the continuously enhanced squeezing force, realize more sufficient dehydration, improve the dryness of material, compared with traditional filter press, need not use filter cloth, reduced use cost.

Description

Technical Field

[0001] This utility model relates to the field of fiber dewatering equipment, and in particular to a filter cloth-free high-dryness fiber dewatering machine. Background Technology

[0002] Fiber materials, such as plant fibers and industrial fiber waste, often contain a large amount of moisture during processing or treatment. Dehydration is a key step in subsequent processing, transportation, storage and resource utilization.

[0003] Traditional belt filter presses dewater materials by squeezing them through an "S"-shaped pressing process using two mesh belts. In this process, the filter cloth acts as the main carrier of the material. The filter cloth is pulled back and forth between the rollers, squeezing and dewatering the material. This process causes significant wear and tear on the filter cloth; a typical set of filter cloths lasts only 15-30 days, and replacing a set takes 3-6 hours, increasing the user's production costs. Furthermore, the time spent on filter cloth replacement leads to intermittent production stoppages. Additionally, the need for an air source to tension and correct the filter cloth increases energy consumption. In traditional belt filter presses, the material is evenly distributed on the lower mesh belt by a distributor and gradually pressurized through the "S"-shaped pressing zone to achieve solid-liquid separation. Because the filter cloth has a woven structure, it is prone to deformation after operation, causing changes in pore size. Fibery materials easily clog the mesh. This wear and tear on the filter cloth further increases the user's operating costs. Therefore, a filter cloth-free high-dryness fiber dewatering machine is proposed to solve these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a filter cloth-free high-dryness fiber dewatering machine, which aims to improve the problem in the prior art that "existing belt dewatering machines require regular replacement of filter cloth, resulting in high operating costs, and the filter cloth is prone to deformation and clogging of the mesh after operation, which increases the user's operating costs".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter cloth-free high-dryness fiber dewatering machine, comprising a mounting frame, a drive dewatering roller fixedly mounted on the outside of the mounting frame via a bearing in a bearing seat, a reducer fixedly connected to the right side of the drive dewatering roller via a coupling, a variable frequency motor connected to the reducer via a front drive, a support frame fixedly connected to the top of the reducer and the variable frequency motor, a fabric feeder fixedly mounted on the upper front side of the drive dewatering roller, a liquid receiving tank fixedly mounted on the mounting frame near the lower part of the drive dewatering roller, an electrical control box fixedly mounted on the rear right side of the mounting frame, and a dewatering assembly fixedly mounted on the rear side of the mounting frame near the upper part of the drive dewatering roller;

[0006] The dehydration assembly includes four sets of hydraulic cylinders hinged to the left and right sides of the mounting frame. The output shafts of two adjacent sets of hydraulic cylinders are respectively hinged to two sets of hinge members. The opposite sides of the two sets of hinge members are hinged to the outside of the mounting frame. The inner walls of the two sets of hinge members are rotatably connected to two sets of connecting members. The inner walls of the connecting members are rotatably connected to pressure rollers. The pressure rollers are attached to the outside of the drive dehydration roller.

[0007] As a further description of the above technical solution:

[0008] The pressure rollers are arranged in four sets. The contact areas between the four sets of pressure rollers and the outer side of the drive dewatering roller are arranged sequentially from front to back as the first pressing zone, the second pressing zone, the third pressing zone, and the fourth pressing zone. The linear pressure of the first pressing zone is about 30-50 kg / cm, the linear pressure of the second pressing zone is about 50-70 kg / cm, the linear pressure of the third pressing zone is about 70-80 kg / cm, and the linear pressure of the fourth pressing zone is about 80-100 kg / cm.

[0009] As a further description of the above technical solution:

[0010] The transmission dewatering roller includes a main shaft, which is interference-fitted with a bearing in a bearing housing. Multiple sets of reinforcing ribs are uniformly fixedly connected to the outside of the main shaft. A roller body is fixedly connected to the outside of the reinforcing ribs. Multiple sets of support partitions are fixedly connected around the outside of the roller body. Multiple sets of support rings are fixedly connected to the outside of the support partitions. Stainless steel screen plates are fixedly connected around the outside of the multiple sets of support rings. The stainless steel screen plates are connected end to end.

[0011] As a further description of the above technical solution:

[0012] Multiple sets of support rings have through holes on their outer sides.

[0013] As a further description of the above technical solution:

[0014] The support partition is configured in a T-shape.

[0015] As a further description of the above technical solution:

[0016] A rinsing device is fixedly installed on the outer side of the mounting frame near the front side of the drive dewatering roller.

[0017] As a further description of the above technical solution:

[0018] A scraping device is fixedly installed on the outer side of the mounting frame near the rear side of the drive dewatering roller, and the front side of the scraping device is attached to the surface of the stainless steel screen plate.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the dewatering components are used in combination with the drive dewatering rollers. The dewatering components include four sets of pressure rollers. The areas where the pressure rollers contact the stainless steel screen plate of the drive dewatering rollers form the first to fourth pressing zones from front to back, and the pressure increases sequentially. In combination with the stainless steel screen plate on the outside of the drive dewatering rollers, the material can be discharged under continuously enhanced pressing force, achieving more thorough dewatering and improving the dryness of the material. Compared with traditional filter presses, there is no need to use filter cloth, which reduces the cost of use.

[0021] 2. In this utility model, the rinsing device can rinse the transmission dewatering roller in time to prevent material residue from clogging; the scraping device can scrape the material off the surface of the stainless steel screen plate, ensuring the normal operation of the equipment and reducing maintenance workload. The equipment is equipped with an electrical control box, which can control components such as the frequency converter motor, making it easy to achieve automated operation, improve production efficiency, and reduce the intensity of manual operation. Attached Figure Description

[0022] Figure 1 This is a front view schematic diagram of the three-dimensional structure of the overall device in this utility model;

[0023] Figure 2 This is a right-side three-dimensional view of the transmission dewatering roller and dewatering assembly in this utility model;

[0024] Figure 3 This is a top view of the three-dimensional structure of the speed reducer and the variable frequency motor in this utility model;

[0025] Figure 4 This is a right-side cross-sectional view of the three-dimensional structure of the transmission dewatering roller in this utility model;

[0026] Figure 5 This is a front cross-sectional view of the three-dimensional structure of the drive dewatering roller in this utility model.

[0027] Legend:

[0028] 1. Mounting frame; 2. Drive dewatering roller; 21. Main shaft; 22. Reinforcing rib plate; 23. Roller body; 24. Support partition plate; 25. Support ring; 26. Stainless steel screen plate; 3. Reducer; 4. Variable frequency motor; 5. Fabric distributor; 6. Dewatering assembly; 61. Hydraulic cylinder; 62. Hinge; 63. Connector; 64. Pressure roller; 7. Washing device; 8. Scraping device; 9. Liquid receiving tank. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1-3 This utility model provides an embodiment of a filter cloth-free high-dryness fiber dewatering machine, including a mounting frame 1 for supporting the overall device. A drive dewatering roller 2 is fixedly mounted on the outside of the mounting frame 1 via bearings in a bearing seat, used to convey the fibrous material laid by the fabric spreader 5. Traditionally, the diameter is around 200-300mm, while the main drive roller diameter in this equipment is around 900-1600mm, increasing processing output. A reducer 3 is fixedly connected to the right side of the drive dewatering roller 2 via a coupling. The reducer 3 is connected to a variable frequency motor 4 via a front drive. A support frame is fixedly connected to the top of the reducer 3 and the variable frequency motor 4. The reducer 3 and the variable frequency motor 4 are driven by two sets of drive wheels and belts, providing power for the rotation of the drive dewatering roller 2. The frequency conversion characteristics of the variable frequency motor 4 can be adjusted according to… The actual production needs to adjust the rotation speed to control the material conveying speed. This is controlled by an electrical control box, and the control method can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. A material distributor 5 is fixedly installed on the upper front side of the drive dewatering roller 2. The raw material is fed to the feed port of the material distributor 5 by a belt or screw. The material is quickly distributed and spread by the material distribution screw inside the material distributor 5, so that the material is evenly distributed on the surface of the drive dewatering roller 2. The material distributor 5 is existing technology, so it will not be described in detail. A liquid receiving tank 9 is fixedly installed on the mounting frame 1 near the lower part of the drive dewatering roller 2 to collect the filtrate that is separated from the discharged material. An electrical control box is fixedly installed on the rear right side of the mounting frame 1. A dewatering component 6 is fixedly installed on the rear side of the mounting frame 1 near the upper part of the drive dewatering roller 2.

[0031] Reference Figure 2The dewatering assembly 6 includes four sets of hydraulic cylinders 61 hinged to the left and right sides of the mounting frame 1. The hydraulic cylinders 61 are connected to an external hydraulic station to provide stable pressure holding. The hydraulic cylinders 61 apply pressure to the hinge 62. The output shafts of two adjacent sets of hydraulic cylinders 61 are respectively hinged to two sets of hinge 62. The opposite sides of the two sets of hinge 62 are hinged to the outside of the mounting frame 1. The hinge 62 is hinged to one side, which increases the stability of the hinge 62 and provides stable support for the connecting parts 63. The inner walls of the two sets of hinge 62 are rotatably connected to two sets of connecting parts 63. The distance between the connection points of the hinge 62 and the connecting parts 63 is set to be the lever arm between the two sets of pressure rollers 64 on a single set of connecting parts 63, which can change the pressure of the pressure rollers 64. The inner walls of the connecting parts 63 are rotatably connected to the pressure rollers 64, which directly squeeze and contact the fibrous materials. The fibrous materials are dewatered by squeezing them with the drive dewatering roller 2. The pressure rollers 64 are attached to the outside of the drive dewatering roller 2.

[0032] Furthermore, the pressure rollers 64 are provided in four sets. The contact areas between the four sets of pressure rollers 64 and the outer side of the drive dewatering roller 2 are sequentially set as the first pressing zone, the second pressing zone, the third pressing zone, and the fourth pressing zone from front to back. The linear pressure of the first pressing zone is about 30-50 kg / cm, the linear pressure of the second pressing zone is about 50-70 kg / cm, the linear pressure of the third pressing zone is about 70-80 kg / cm, and the linear pressure of the fourth pressing zone is about 80-100 kg / cm. This allows for graded dewatering and achieves solid-liquid separation. At the same time, through multi-stage pressurization, the accumulation of material on the surface of the drive dewatering roller 2 can be reduced.

[0033] Reference Figure 1 , Figure 4 and Figure 5 The drive dewatering roller 2 includes a main shaft 21, which is fixed to the output end of the reducer 3. It is the central shaft for the rotation of the drive dewatering roller 2, providing support and power transmission for the entire roller. The main shaft 21 is interference-fitted with the bearing in the bearing housing. Multiple sets of reinforcing ribs 22 are uniformly fixedly connected to the outside of the main shaft 21 to connect the main shaft 21 and the roller body 23, improving the stability of the connection. The roller body 23 is fixedly connected to the outside of the reinforcing ribs 22, providing an installation base for the support ring 25 and the stainless steel screen plate 26. Multiple sets of support partitions 24 are fixedly connected around the outside of the roller body 23. The support partitions 24 are T-shaped and there are 34 sets, which are used to support the support ring 25, enhancing the stability and load-bearing capacity of the support ring 25. At the same time, a drainage groove is formed between two adjacent sets of support partitions 24, which can discharge the filtrate from the drive dewatering roller 2 and flow into the liquid receiving tank 9 for processing.

[0034] Furthermore, multiple sets of support rings 25 are fixedly connected to the outer side of the support partition 24, with 92 sets in total. These rings are made of carbon steel and are corrosion-resistant. They are used to support the stainless steel screen plate 26 and reduce the clogging of the mesh after the stainless steel screen plate 26 is fixed. The stainless steel screen plate 26 is fixedly connected around the outer side of the multiple sets of support rings 25. The stainless steel screen plate 26 is made of SS304 material and its material and aperture can be selected according to the material. The stainless steel screen plate 26 contacts the fibrous material through the mesh. The holes on the outer side of the screen plate increase the resistance to the fibrous material, thereby preventing the fibrous material from sliding and accumulating on the surface of the stainless steel screen plate 26 during extrusion and dewatering. At the same time, it can draw out the liquid that has been separated from the material. Through holes are opened on the outer side of the multiple sets of support rings 25.

[0035] Reference Figure 1 and Figure 2 A rinsing device 7 is fixedly installed on the outer side of the mounting frame 1 near the front of the drive dewatering roller 2. It is connected to an external water source and has nozzles evenly arranged on the outer side to rinse the drive dewatering roller 2 in a timely manner, preventing material residue from clogging the stainless steel screen plate 26 and ensuring the normal operation of the equipment. A scraping device 8 is fixedly installed on the outer side of the mounting frame 1 near the rear of the drive dewatering roller 2. The front side of the scraping device 8 is attached to the surface of the stainless steel screen plate 26 and consists of a silicone scraper and a mounting base. It can scrape off the material adhering to the surface of the stainless steel screen plate 26 after dewatering, so as to carry out the feeding operation, while avoiding material residue from affecting subsequent operations.

[0036] Working principle: During use, the raw material is conveyed to the feed inlet of the distributor 5 via a belt or screw conveyor. The distributor 5 uses its internal distributing screw to quickly and evenly spread the material onto the surface of the stainless steel screen plate 26 outside the drive dewatering roller 2. At this time, the variable frequency motor 4 drives the drive dewatering roller 2 to rotate at a set speed through the reducer 3, moving the material towards the dewatering assembly 6.

[0037] During the rotation of the drive dewatering roller 2, the material sequentially enters the pressing zone formed by four sets of pressure rollers 64 and the drive dewatering roller 2, with the pressure in each zone gradually increasing: First pressing zone: linear pressure of about 30-50 kg / cm, initially squeezing the material and discharging some free water; Second pressing zone: linear pressure increases to 50-70 kg / cm, further compressing the gaps between material fibers and enhancing the dewatering effect; Third pressing zone: linear pressure reaches 70-80 kg / cm, deeply squeezing the material and promoting the separation of bound water; Fourth pressing zone: linear pressure reaches a maximum of 80-100 kg / cm, achieving high dryness dewatering and meeting the material's dryness requirements.

[0038] During the dehydration process, water passes through the mesh of the stainless steel sieve plate 26, the through holes of the support ring 25, and the drainage channel formed by the support partition plate 24, and finally flows into the liquid receiving tank 9 at the bottom for collection.

[0039] After dehydration, the material continues to move to the rear along with the drive dehydration roller 2, where the scraping device 8 scrapes off the dry material adhering to the surface of the stainless steel screen plate 26, completing the feeding process. At the same time, the rinsing device 7 installed in front of the drive dehydration roller 2 rinses the stainless steel screen plate 26 to prevent material residue from clogging the mesh and ensure smooth subsequent operations.

[0040] The entire process is controlled by adjusting the speed of the variable frequency motor 4 through the electrical control box to achieve precise control of the material transmission speed; the hydraulic cylinder 61 is connected to an external hydraulic station to provide stable pressure, and the pressure is transmitted to the pressure roller 64 through the hinge 62 and the connecting part 63 to ensure stable pressure in each pressing zone, and finally achieve continuous and efficient filter cloth-free dewatering operation.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter cloth-free high-dryness fiber dewatering machine, comprising a mounting frame (1), characterized in that: The drive dewatering roller (2) is fixedly installed on the outside of the mounting frame (1) through the bearing in the bearing seat. The reducer (3) is fixedly connected to the right side of the drive dewatering roller (2) through the coupling. The reducer (3) is connected to the variable frequency motor (4) through the front drive. The top of the reducer (3) and the variable frequency motor (4) is fixedly connected to the support frame. The upper front of the drive dewatering roller (2) is fixedly installed with a cloth feeder (5). The liquid receiving tank (9) is fixedly installed near the lower part of the drive dewatering roller (2) on the mounting frame (1). The electrical control box is fixedly installed on the rear right side of the mounting frame (1). The dewatering component (6) is fixedly installed near the rear upper part of the mounting frame (1). The dehydration assembly (6) includes four sets of hydraulic cylinders (61) hinged to the left and right sides of the mounting frame (1). The output shafts of two adjacent sets of hydraulic cylinders (61) are respectively hinged to two sets of hinge members (62). The opposite sides of the two sets of hinge members (62) are hinged to the outside of the mounting frame (1). The inner walls of the two sets of hinge members (62) are rotatably connected to two sets of connecting members (63). The inner walls of the connecting members (63) are rotatably connected to pressure rollers (64). The pressure rollers (64) are attached to the outside of the transmission dehydration roller (2).

2. The filter cloth-free high-dryness fiber dewatering machine according to claim 1, characterized in that: The pressure rollers (64) are provided in four sets. The contact areas between the four sets of pressure rollers (64) and the outer side of the drive dewatering rollers (2) are arranged from front to back as the first pressing zone, the second pressing zone, the third pressing zone and the fourth pressing zone. The linear pressure of the first pressing zone is about 30-50 kg / cm, the linear pressure of the second pressing zone is about 50-70 kg / cm, the linear pressure of the third pressing zone is about 70-80 kg / cm, and the linear pressure of the fourth pressing zone is about 80-100 kg / cm.

3. The filter cloth-free high-dryness fiber dewatering machine according to claim 1, characterized in that: The transmission dewatering roller (2) includes a main shaft (21), which is interference-fitted with a bearing in a bearing housing. Multiple sets of reinforcing ribs (22) are uniformly fixedly connected to the outside of the main shaft (21). A roller body (23) is fixedly connected to the outside of the reinforcing ribs (22). Multiple sets of supporting partitions (24) are fixedly connected around the outside of the roller body (23). Multiple sets of supporting rings (25) are fixedly connected to the outside of the supporting partitions (24). A stainless steel screen plate (26) is fixedly connected around the outside of the multiple sets of supporting rings (25). The stainless steel screen plates (26) are connected end to end.

4. The filter cloth-free high-dryness fiber dewatering machine according to claim 3, characterized in that: Multiple sets of support rings (25) have through holes on their outer sides.

5. A filter cloth-free high-dryness fiber dewatering machine according to claim 3, characterized in that: The support partition (24) is configured in a T-shape.

6. The filter cloth-free high-dryness fiber dewatering machine according to claim 1, characterized in that: A rinsing device (7) is fixedly installed on the outer side of the mounting frame (1) near the front side of the drive dewatering roller (2).

7. The filter cloth-free high-dryness fiber dewatering machine according to claim 1, characterized in that: A scraping device (8) is fixedly installed on the outer side of the mounting frame (1) near the rear side of the drive dewatering roller (2), and the front side of the scraping device (8) is attached to the surface of the stainless steel screen plate (26).

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