Double-net press master
By increasing the extrusion pressure between the unstoppable mesh and the transmission roller in the double mesh extruder, the problem of insufficient pressure in the prior art is solved, and a more efficient pulp dehydration effect is achieved.
Patent Information
- Application Number
- CN202422406483.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The extrusion rollers of existing double mesh pulping machines have limited pressure on the unbounded mesh, resulting in the pulp concentration and dehydration effects not meeting the standards.
The double mesh extruder design is adopted to increase the extrusion pressure between the unfinished mesh and the transmission roller, and adjust the pressure roller spacing through multiple fixed shafts and hydraulic rods to improve the extrusion effect.
It improves the extrusion pressure and working efficiency of the unstoppable net, enhances the dehydration effect of the pulp, and meets the concentration requirements set by the process.
Smart Images
Figure CN223268992U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of feces cleaning of a twin-wire pulping machine, and in particular to a twin-wire pulping machine. Background Art
[0002] Domestically produced twin-wire pulp dewatering equipment currently operates according to the basic dewatering theory of pulp: filtration at low consistency and squeezing at high consistency. Specifically, the dewatering process from low to high consistency is generally divided into three stages: gravity drainage in the open wedge zone, tension dewatering in the horizontal roll squeeze zone, and double-roll press dewatering. These three distinct, progressively increasing pressure zones gradually dewater the pulp to the desired consistency.
[0003] In the papermaking process, pulp thickening and dewatering are crucial steps. In conventional twin-wire presses, the working area of the press is equipped with only one squeeze roller, resulting in a very small wrap angle of the endless wire around the squeeze roller. According to mechanical principles, even if the tension of the endless wire is increased, the pressure exerted by the squeeze roller on the endless wire is very limited, resulting in pulp thickening and dewatering failing to meet process requirements. Therefore, those skilled in the art have provided a twin-wire press to address the problems outlined in the background art. Utility Model Content
[0004] In order to solve the problems raised in the above background technology, the present application provides a twin-wire pulping machine.
[0005] The present application provides a twin-wire squeezer adopting the following technical solution:
[0006] A twin-wire pulping machine comprises a bracket, a support plate is arranged above the bracket, the support plate is provided in two groups, a fixed shaft, a first transmission roller and a second transmission roller are arranged inside the two groups of support plates, a plurality of the fixed shafts are provided, the second transmission roller is located above one side of the first transmission roller, and a pressure roller is fixedly connected to the surface of the first transmission roller and the second transmission roller;
[0007] an endless net, which is arranged on the surfaces of the two groups of pressing rollers and the plurality of fixed shafts;
[0008] The fixing assembly is arranged on the two groups of support plates and is located on both side surfaces of the second transmission roller.
[0009] In some embodiments, the endless net slides on the surfaces of the two groups of pressure rollers, and the surfaces of the pressure rollers are provided with strip grooves, and a plurality of strip grooves are provided.
[0010] In some embodiments, a limiting slide groove is provided above the two groups of support plates, and the fixing assembly includes a slider located inside the two groups of limiting slide grooves, the slider slides along the inner wall of the support plate, a support block is provided above the slider, and hydraulic rods are provided below both sides of the support block, and the two groups of hydraulic rods are provided above the support plate.
[0011] In some embodiments, a connecting frame is provided between the two groups of support blocks, and the connecting frame is provided above one of the pressing rollers.
[0012] In some embodiments, two sides of the fixed shaft are fixedly connected to limit plates, and two groups of the limit plates are located on two sides of the endless net.
[0013] In some embodiments, guide rollers are provided inside the two groups of support plates. The guide rollers are located below one side of the second transmission roller, and the bottom of the guide rollers is in contact with the endless net.
[0014] In summary, this application has the following beneficial technical effects:
[0015] (1) During the rotation of the fixed shaft, the endless nets are driven to rotate inside the two sets of support plates. The two sets of endless nets will be guided along multiple fixed shafts to approach the first transmission roller. The first transmission roller and the second transmission roller will guide the two sets of endless nets. When the endless nets are in contact with the first transmission roller and the second transmission roller, the internal pulp will be squeezed to squeeze out the liquid inside the pulp. After the two sets of endless nets pass through the first transmission roller and the second transmission roller, they are guided by multiple fixed shafts and then separated. When the two sets of endless nets are separated, the internal pulp will be discharged. In this way, the angle between the two sets of pressure rollers is used to increase the squeezing force of the endless nets, improve the squeezing effect on the endless nets, and improve work efficiency.
[0016] (2) When the surface pressure roller of the second transmission roller guides the endless web, the two sets of hydraulic rods are started, and the hydraulic rods lift the support block and the slider. The slider slides close to the inside of the support plate, increasing the stability of the slider's rise. During the rising process of the slider, the second transmission roller is driven to rise, increasing the distance between the second transmission roller and the first transmission roller. The increase in the distance between the first transmission roller and the second transmission roller will increase the squeezing force of the two sets of pressure rollers on the endless web, adjust the squeezing effect of the pulp, and improve the pulping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of the overall structure in an embodiment of the present application;
[0018] Figure 2 This is a schematic structural diagram of the side surface of the guide box in an embodiment of the present application;
[0019] Figure 3 This is a schematic structural diagram of a limit plate in an embodiment of the present application;
[0020] Figure 4 In the embodiment of this application Figure 3 Schematic diagram of the structure at A in FIG;
[0021] Figure 5 It is a schematic structural diagram of the pressure roller in the middle figure in the embodiment of the present application.
[0022] Explanation of the accompanying drawings: 1. Bracket; 2. Support plate; 21. Limiting slide; 3. Fixed shaft; 31. Limiting plate; 4. First transmission roller; 5. Second transmission roller; 6. Endless net; 7. Fixed assembly; 71. Slider; 72. Support block; 73. Hydraulic rod; 74. Connecting frame; 8. Pressure roller; 81. Strip groove; 9. Guide roller. DETAILED DESCRIPTION
[0023] The following is combined with Figure 1-5 This application is described in further detail.
[0024] The embodiment of the present application discloses a double-wire pulping machine. Figure 1-5 A twin-wire pulping machine includes a bracket 1, an endless net 6 and a fixed component 7. A support plate 2 is arranged above the bracket 1. Two groups of support plates 2 are provided. A fixed shaft 3, a first transmission roller 4 and a second transmission roller 5 are arranged inside the two groups of support plates 2. A plurality of fixed shafts 3 are provided. The second transmission roller 5 is located above one side of the first transmission roller 4. A pressure roller 8 is fixedly connected to the surface of the first transmission roller 4 and the second transmission roller 5. The endless net 6 is arranged on the surface of the two groups of pressure rollers 8 and the plurality of fixed shafts 3. The fixed component 7 is arranged on the two groups of support plates 2 and is located on the two side surfaces of the second transmission roller 5.
[0025] In this way, during the implementation process, when workers want to squeeze the pulp, they will place the pulp inside the two sets of endless nets 6, wherein one end of the two sets of fixed shafts 3 is provided with a driving motor, and the motor drives the fixed shaft 3 to rotate, and the rotation of the fixed shaft 3 drives the endless net 6 located inside the two sets of support plates 2 to rotate;
[0026] The two groups of endless webs 6 will be guided along multiple fixed axes 3 to approach the first transmission roller 4. The first transmission roller 4 and the second transmission roller 5 will guide the two groups of endless webs 6. When the endless webs 6 are in contact with the first transmission roller 4 and the second transmission roller 5, the internal pulp will be squeezed to squeeze out the liquid inside the pulp. After the two groups of endless webs 6 pass through the first transmission roller 4 and the second transmission roller 5, they are guided by multiple fixed axes 3 and then separated. When the two groups of endless webs 6 are separated, the internal pulp will be discharged. In this way, the angle between the two groups of pressure rollers 8 is used to increase the squeezing force of the endless web 6, improve the squeezing effect on the endless web 6, and improve work efficiency.
[0027] Among them, the endless net 6 is located on the surface of the two groups of pressure rollers 8 and slides. The surface of the pressure roller 8 is provided with a strip groove 81. There are multiple strip grooves 81. The strip groove 81 is annularly opened on the surface of the pressure roller 8. When the two groups of endless nets 6 are in contact with the pressure roller 8, the two groups of endless nets 6 squeeze the pulp. The pulp is summarized during the squeezing process and the inside will be discharged through the strip grooves 81, thereby improving the squeezing and drainage effect of the pulp.
[0028] Preferably, a limiting slide groove 21 is provided above the two groups of support plates 2, and the fixing assembly 7 includes a slider 71 located inside the two groups of limiting slide grooves 21. The slider 71 slides along the inner wall of the support plate 2. A support block 72 is provided above the slider 71, and hydraulic rods 73 are provided below both sides of the support block 72. The two groups of hydraulic rods 73 are provided above the support plate 2;
[0029] When the pressure roller 8 on the surface of the second transmission roller 5 is guiding the endless web 6, the two groups of hydraulic rods 73 are started, and the hydraulic rods 73 lift the support block 72 and the slider 71. The slider 71 slides closely against the inside of the support plate 2, thereby increasing the stability of the rise of the slider 71. During the rising process of the slider 71, the second transmission roller 5 is driven to rise, thereby increasing the distance between the second transmission roller 5 and the first transmission roller 4. The increase in the distance between the first transmission roller 4 and the second transmission roller 5 increases the squeezing force of the two groups of pressure rollers 8 on the endless web 6, thereby adjusting the squeezing effect of the pulp and improving the pulping efficiency.
[0030] Specifically, a connecting frame 74 is provided between the two groups of support blocks 72. The connecting frame 74 is provided above one of the pressure rollers 8. The connecting frame 74 connects the two groups of support blocks 72 so that the two groups of support blocks 72 remain horizontal during the rising process, thereby improving the stability of the pressure roller 8 during the rising process.
[0031] More specifically, the two sides of the fixed shaft 3 are fixedly connected with the limiting plates 31, and the two sets of limiting plates 31 are located on both sides of the endless net 6. The diameter of the limiting plates 31 is larger than the diameter of the fixed shaft 3. When the endless net 6 slides on the surface of the fixed shaft 3, the two sides of the endless net 6 will fit with the limiting plates 31, ensuring the stability of the sliding of the endless net 6 on the surface of the fixed shaft 3.
[0032] Furthermore, during the implementation process, guide rollers 9 are provided inside the two groups of support plates 2. The guide rollers 9 are located below one side of the second transmission roller 5. The bottom of the guide rollers 9 is in contact with the endless net 6. The guide rollers 9 are installed on the side of the second transmission roller 5 away from the first transmission roller 4. After the endless net 6 is away from the second transmission roller 5, it will be in contact with the guide rollers 9. The guide rollers 9 guide the two groups of endless nets 6 so that the two groups of endless nets 6 return to between the multiple groups of fixed shafts 3, which facilitates the separation of the two groups of endless nets 6. After the two groups of endless nets 6 separate from the support plate 2, the pulp will fall inside the two groups of endless nets 6.
[0033] The implementation principle of a double-wire pulping machine in the embodiment of the present application is as follows: when a worker wants to squeeze pulp, the worker will place the pulp inside two groups of endless nets 6, wherein one end of the two groups of fixed shafts 3 is provided with a driving motor, and the motor drives the fixed shaft 3 to rotate. During the rotation of the fixed shaft 3, the endless net 6 is driven to rotate inside the two groups of support plates 2, and the two groups of endless nets 6 will be guided along multiple fixed shafts 3 to approach the first transmission roller 4, and the first transmission roller 4 and the second transmission roller 5 will guide the two groups of endless nets 6. When the endless net 6 is in contact with the first transmission roller 4 and the second transmission roller 5, the internal pulp will be squeezed out, and the liquid inside the pulp can be squeezed out. After passing through the first transmission roller 4 and the second transmission roller 5, the two groups of endless nets 6 are guided by multiple fixed shafts 3 and then separated. When the two groups of endless nets 6 are separated, the internal pulp will be discharged. In this way, the angle between the two groups of pressure rollers 8 is used to increase the squeezing force of the endless net 6, improve the squeezing effect of the endless net 6, and improve work efficiency.
[0034] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0035] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.
[0036] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.
Claims
1. A twin-wire squeezer, characterized in that: include: A bracket (1), wherein a support plate (2) is provided above the bracket (1), wherein two groups of support plates (2) are provided, wherein a fixed shaft (3), a first transmission roller (4) and a second transmission roller (5) are provided inside the two groups of support plates (2), wherein a plurality of fixed shafts (3) are provided, wherein the second transmission roller (5) is located above one side of the first transmission roller (4), and a pressure roller (8) is fixedly connected to the surfaces of the first transmission roller (4) and the second transmission roller (5); an endless net (6) disposed on the surfaces of the two groups of pressing rollers (8) and the plurality of fixed shafts (3); A fixing assembly (7) is provided on the two groups of support plates (2) and is located on both side surfaces of the second transmission roller (5).
2. A twin-wire squeezer according to claim 1, characterized in that: The endless net (6) slides on the surfaces of the two groups of pressure rollers (8), and the surfaces of the pressure rollers (8) are provided with strip grooves (81), and a plurality of strip grooves (81) are provided.
3. A twin-wire squeezer according to claim 1, characterized in that: A limiting slide groove (21) is provided above the two groups of support plates (2), and the fixing assembly (7) includes a slider (71) located inside the two groups of limiting slide grooves (21). The slider (71) slides along the inner wall of the support plate (2). A support block (72) is provided above the slider (71), and hydraulic rods (73) are provided below both sides of the support block (72). The two groups of hydraulic rods (73) are provided above the support plate (2).
4. A twin-wire squeezer according to claim 3, characterized in that: A connecting frame (74) is provided between the two groups of support blocks (72), and the connecting frame (74) is provided above one of the pressing rollers (8).
5. The twin-wire squeezer according to claim 1, characterized in that: Limiting plates (31) are fixedly connected to both sides of the fixed shaft (3), and two groups of limiting plates (31) are located on both sides of the endless net (6).
6. The twin-wire squeezer according to claim 1, characterized in that: A guide roller (9) is provided inside the two groups of support plates (2), and the guide roller (9) is located below one side of the second transmission roller (5), and the bottom of the guide roller (9) is in contact with the endless net (6).