Headbox pulp baffle and adjustable headbox

Abstract

The utility model belongs to the technical field of flow pulp plate manufacturing equipment, and particularly provides a flow box pulp baffle which comprises a first baffle and a second baffle. The second baffle comprises a second baffle body and a second sector plate which are connected; a first fan-shaped groove matched with the second fan-shaped plate is formed in the surface of the first baffle plate; the second fan-shaped plate is connected into the first fan-shaped groove; the circle center of the second fan-shaped plate coincides with the circle center of the first fan-shaped groove, and a rotating shaft is arranged at the circle center; and the second fan-shaped plate is rotationally connected with the first fan-shaped groove through a rotating shaft. The pulp baffle plate of the headbox is simple in structure and convenient to operate, and can flexibly adjust the gap between the outlet end of the headbox and the steering roller to control the thickness of the flowing-out pulp and adjust the uniformity of the pulp according to vortex and accumulated materials in the middle area of the headbox, so that a more uniform material layer is formed on coarse cotton cloth.

Description

Technical Field

[0001] The utility model belongs to the technical field of flow - forming board equipment, and particularly relates to a slurry - flow box baffle and an adjustable slurry - flow box. Background Art

[0002] As a new type of environmental protection building material, calcium silicate board not only has the functions of traditional gypsum board and mineral wool board, but also has superior fire - resistance performance, moisture - resistance, and an extremely long service life. Moreover, compared with traditional wood - based boards, it has advantages such as corrosion - resistance and resistance to insects and ants. Therefore, it is widely used in ceiling ceilings and partition walls of industrial and commercial engineering buildings, home decoration, lining boards of furniture, lining boards of billboards, bulkhead boards of ships, shed boards of warehouses, network floors, and wall boards of indoor projects such as tunnels.

[0003] Currently, the main production methods of calcium silicate board are the flow - forming method and the vat - forming method. The flow - forming board machine is one of the main equipment for producing calcium silicate board by the flow - forming method. As an important component of the flow - forming board machine, the structure design of the slurry - flow box is directly related to production quality and production cost. Inside the slurry - flow box, during the forward movement of the slurry, due to the physical properties of the slurry fluid itself, a certain vortex will form in the middle, resulting in uneven slurry discharge. This causes the single - layer blank adsorbed on the felt to have a physical property of being thick in the middle and thin on both sides, affecting the quality of the final product. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the problem that the slurry discharge of the slurry - flow box in the prior art is uneven, which affects the quality of the finished product.

[0005] To this end, the utility model provides a slurry - flow box baffle, which includes a first baffle and a second baffle; the second baffle includes a connected second baffle body and a second sector plate; a first sector groove matching the second sector plate is arranged on the surface of the first baffle; the second sector plate is connected in the first sector groove; the second sector plate and the first sector groove have the same center of the circle, and a rotating shaft is arranged at the center of the circle; the second sector plate and the first sector groove are rotationally connected through the rotating shaft.

[0006] Specifically, the above - mentioned slurry - flow box baffle further includes a third sector plate; a second sector groove matching the third sector plate is opened on the surface of the second baffle body; the third sector plate is connected in the second sector groove; the third sector plate and the second sector groove have the same center of the circle, and a rotating shaft is arranged at the center of the circle; the third sector plate and the second sector groove are rotationally connected through the rotating shaft.

[0007] Specifically, the radii and central angles of the above - mentioned third sector plate and the second sector plate are the same.

[0008] Specifically, the above - mentioned slurry - flow box baffle further includes a cross - beam; the rotating shaft is movably connected to the cross - beam through a telescopic adjustment assembly.

[0009] Specifically, the telescopic adjustment assembly includes a connecting rod and a first nut; a chute extending along the length direction is provided on the cross beam; one end of the connecting rod is connected to the rotating shaft, and the other end is provided with a thread; the threaded end of the connecting rod is movably connected to the cross beam through the chute and the first nut.

[0010] Specifically, the telescopic adjustment assembly further includes a second nut; the threaded end of the connecting rod passes through the second nut and the chute in sequence and then is connected to the first nut.

[0011] Specifically, a U-shaped connecting piece is provided at one end of the connecting rod; the rotating shaft is fixed on the U-shaped connecting piece.

[0012] The utility model further provides an adjustable headbox, which includes a headbox and the above-mentioned baffle plate; the baffle plate is installed in the headbox and is located at the pulp outlet of the headbox.

[0013] Specifically, a diversion plate is provided at the pulp outlet of the headbox; the bottom surface of the blade of the diversion plate is parallel to the surface of the diversion plate.

[0014] Specifically, the adjustable headbox further includes a mounting seat; the baffle plate is installed in the headbox through the mounting seat.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] The baffle plate of the headbox provided by the utility model has a simple structure and convenient operation, and can flexibly adjust the gap between the outlet end of the headbox and the turning roll to control the thickness of the outflowing pulp, adjust the pulp uniformity, and form a relatively uniform pulp layer on the felt for the eddy current and material accumulation in the middle area of the headbox.

[0017] The following will further describe the present invention in detail with reference to the accompanying drawings. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the baffle plate of the headbox provided by the utility model.

[0019] Figure 2 is Figure 1 a cross-sectional view taken along the line A-A in

[0020] Figure 3 is a top view of the baffle plate of the headbox provided by the utility model.

[0021] Figure 4 is a schematic diagram of the adjustment state of the baffle plate of the headbox provided by the utility model.

[0022] Figure 5It is a schematic structural diagram of an adjustable headbox provided by the present utility model.

[0023] Figure 6 is Figure 5 a sectional view taken along the A-A plane in

[0024] Description of reference numerals: 1, baffle plate; 11, baffle assembly; 111, first baffle; 112, first sector slot; 113, second sector plate; 114, second baffle body; 115, second sector slot; 116, third sector plate; 117, mounting hole; 118, rotating shaft; 12, telescopic adjustment assembly; 121, U-shaped connecting piece; 122, connecting rod; 123, first nut; 124, second nut; 13, cross beam; 2, headbox; 21, drainage plate; 22, mounting seat; 3, turning roll; 4, brushing roll. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0027] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0028] Refer to Figures 1-3, the present utility model provides a slurry box baffle, which includes a baffle assembly 11. The baffle assembly 11 includes a first baffle 111 and a second baffle. The second baffle includes a connected second baffle body 114 and a second sector plate 113. A first sector groove 112 matching the second sector plate 113 is provided on the surface of the first baffle 111. The second sector plate 113 is connected in the first sector groove 112. The second sector plate 113 coincides with the center of the first sector groove 112, and a rotating shaft 118 is provided at the center. The second sector plate 113 is rotatably connected to the first sector groove 112 through the rotating shaft 118. In the initial state, the first baffle 111 and the second baffle form a rectangular baffle 1 structure, that is, the second sector plate 113 is completely filled in the first sector groove 112, and the bottom edge of the first baffle 111 is connected to and on the same straight line as the second baffle body 114. Both the first baffle 111 and the second sector plate 113 can rotate around the corresponding rotating shaft 118. When in use, referring to Figure 4 , according to the need, rotate the second sector plate 113 relative to the first sector groove 112 to adjust the flat bottom surface in contact with the slurry of the baffle 1 to an arc bottom surface, and adjust the slurry flowing below it. Preferably, mounting holes 117 with apertures larger than the diameter of the rotating shaft 118 are provided on both the first baffle 111 and the second baffle body 114, and the rotating shaft 118 is inserted therein. By adjusting the relative heights of the three rotating shafts 118, the second sector plate 113 slides relative to the first sector groove 112 under the action of gravity, which is more convenient for adjusting the relative position between the second sector plate 113 and the first sector groove 112.

[0029] To improve the adjustment accuracy of the arc at the bottom of the baffle 1, the slurry box baffle further includes a third sector plate 116. A second sector groove 115 matching the third sector plate 116 is provided on the surface of the second baffle body 114. The third sector plate 116 is connected in the second sector groove 115. The third sector plate 116 coincides with the center of the second sector groove 115, and a rotating shaft 118 is provided at the center. The third sector plate 116 is rotatably connected to the second sector groove 115 through the rotating shaft 118. When the mounting hole 117 is provided on the second baffle body 114, this mounting hole 117 is provided on the second sector groove 115 and coincides with the centers of the third sector plate 116 and the second sector groove 115. By adjusting the height of the rotating shaft 118, the second sector plate 113 and the third sector plate 116 rotate relative to their respective sector grooves, so that the arc of the bottom surface of the baffle 1 is smoother. During actual production and manufacturing, more sector plates such as a fourth sector plate and a fifth sector plate and prefabricated matching sector grooves can also be set according to the required length of the baffle 1 to make the arc at the bottom of the baffle 1 smoother.

[0030] Specifically, the third sector plate 116 and the second sector plate 113 have the same radius and central angle, and the central angle is preferably 90°. Each sector plate and its mating sector groove form a tangent to the circle, so that when the slurry retaining plate 1 is adjusted, there are no sharp corners on the bottom surface, reducing the possibility of slurry hanging.

[0031] Furthermore, the slurry retaining plate of the headbox further includes a cross beam 13; the rotating shaft 118 is movably connected to the cross beam 13 through a telescopic adjustment assembly 12. The number of the telescopic adjustment assemblies 12 matches the number of the rotating shafts 118. The distance between the rotating shaft 118 and the cross beam 13 is adjusted through the telescopic adjustment member, and then the shape of the slurry retaining plate 1 is adjusted. When each rotating shaft 118 is adjusted synchronously, the whole slurry retaining plate 1 can move up and down to adjust the gap height of the slurry outlet.

[0032] Specifically, the telescopic adjustment assembly 12 includes a connecting rod 122 and a first nut 123; a chute extending along the length direction is provided on the cross beam 13; one end of the connecting rod 122 is connected to the rotating shaft 118, and the other end is provided with a thread; the threaded end of the connecting rod 122 passes through the chute and is connected to the first nut 123. When the slurry retaining plate 1 needs to be adjusted, loosen the first nut 123, pull the connecting rod 122 up and down, and adjust the relative position of the connecting rod 122 in the chute. After the first baffle 111 and the second baffle reach the required positions, tighten the first nut 123 to fix the baffle assembly 11 at this position.

[0033] In order to prevent the baffle assembly 11 from shifting under external forces such as slurry turbulence after being adjusted in place, the telescopic adjustment assembly 12 further includes a second nut 124; the threaded end of the connecting rod 122 passes through the second nut 124 and the chute in sequence and then is connected to the first nut 123, so that the chute is located between the two nuts. The relative position of the connecting rod 122 and the cross beam 13 is further fixed by the two nuts to prevent the connecting rod 122 from shifting due to slurry flow.

[0034] In a refined embodiment, one end of the connecting rod 122 is provided with a U-shaped connecting piece 121; the rotating shaft 118 is fixed on the U-shaped connecting piece 121, and the baffle assembly 11 is located in the U-shaped groove of the U-shaped connecting piece 121. The baffle is limited by the U-shaped connecting piece 121 to prevent the baffle from falling off the corresponding rotating shaft 118.

[0035] Specifically, the rotating shaft 118 can be selected as a bolt, through holes are opened on both side walls of the U-shaped connecting piece 121, and the bolt is fixed on the U-shaped connecting piece 121 through the through holes and the matching nuts.

[0036] Refer to Figures 5-6, the present utility model also provides an adjustable headbox 2, which includes a headbox 2 and the above-mentioned baffle plate 1; the baffle plate 1 is installed in the headbox 2 and is located at the pulp outlet of the headbox 2. The headbox 2 is selected according to needs to have functions such as dispersing pulp and preventing flocculation. During use, a turning roll 3 and a leveling roll 4 are arranged at the pulp outlet of the headbox 2. A felt is wound around the turning roll 3. The leveling roll 4 is located above the turning roll 3, and a gap for the felt to pass through is formed between the two. Configure the pulp according to production needs and input the pulp into the headbox 2 at a certain concentration and flow rate to enter the board-making operation. Start the thickness gauge to monitor the thickness of the felt feeding layer. According to the monitoring results, finely adjust the relative positions of the respective rotating shafts 118 of the baffle plate 1, and adjust the bottom surface of the baffle plate 1 in contact with the pulp to an arc surface, thereby adjusting the flatness of the pulp until the thickness of the felt feeding layer is uniform. The pulp filters water and dehydrates on the running felt to form a thin layer, which is wound around the forming cylinder. When the set slab thickness is reached after multiple layers of winding, cut the slab according to the designed size of the slab, trim and compact it, and then transport it to the autoclave curing area through a conveying device for autoclave curing to obtain the formed board.

[0037] Optionally, the deflector is fixedly installed in the headbox 2 through an angle-adjustable mounting seat 22 and is located at the pulp outlet end. The installation position of the deflector in the headbox 2 is adjusted through the mounting seat 22 to adapt to different headboxes 2.

[0038] Furthermore, a drainage plate 21 is provided at the pulp outlet of the headbox 2, preferably made of a steel plate; the deflector is located above the drainage plate 21. During use, press the drainage plate 21 against the turning roll 3 at a certain angle. On the one hand, it guides the pulp to flow onto the felt, and on the other hand, it plays a role in compacting the felt.

[0039] The above examples are only illustrative of the present utility model and do not constitute a limitation on the protection scope of the present utility model. Any design identical or similar to the present utility model falls within the protection scope of the present utility model.

Claims

1. A slice damper, characterized in that: It includes a first baffle (111) and a second baffle; the second baffle includes a connected second baffle body (114) and a second sector plate (113); a first sector groove (112) matching the second sector plate (113) is provided on the surface of the first baffle (111); the second sector plate (113) is connected in the first sector groove (112); the second sector plate (113) coincides with the center of the first sector groove (112), and a rotating shaft (118) is provided at the center; the second sector plate (113) is rotatably connected to the first sector groove (112) through the rotating shaft (118).

2. The slice damper according to claim 1, wherein: It further includes a third sector plate (116); a second sector groove (115) matching the third sector plate (116) is provided on the surface of the second baffle body (114); the third sector plate (116) is connected in the second sector groove (115); the third sector plate (116) coincides with the center of the second sector groove (115), and a rotating shaft (118) is provided at the center; the third sector plate (116) is rotatably connected to the second sector groove (115) through the rotating shaft (118).

3. The slice damper according to claim 2, wherein: The third sector plate (116) and the second sector plate (113) have the same radius and central angle.

4. The slice damper according to claim 1, wherein: It further includes a cross beam (13); the rotating shaft (118) is movably connected to the cross beam (13) through a telescopic adjustment assembly (12).

5. The slice damper according to claim 4, wherein: The telescopic adjustment assembly (12) includes a connecting rod (122) and a first nut (123); a chute extending along the length direction is provided on the cross beam (13); one end of the connecting rod (122) is connected to the rotating shaft (118), and the other end is provided with a thread; the threaded end of the connecting rod (122) is movably connected to the cross beam (13) through the chute and the first nut (123).

6. The slice damper according to claim 5, characterized in that: The telescopic adjustment assembly (12) further includes a second nut (124); the threaded end of the connecting rod (122) sequentially passes through the second nut (124) and the chute and then is connected to the first nut (123).

7. The slice damper according to claim 5, wherein: One end of the connecting rod (122) is provided with a U-shaped connecting piece (121); the rotating shaft (118) is fixed on the U-shaped connecting piece (121).

8. An adjustable headbox, characterized in that: It includes a headbox (2) and the damper plate (1) according to any one of claims 1-7; the damper plate (1) is installed in the headbox (2) and is located at the pulp outlet of the headbox (2).

9. The adjustable headbox according to claim 8, wherein: A diversion plate (21) is provided at the pulp outlet of the headbox (2); the bottom surface of the blade of the damper plate (1) is parallel to the surface of the diversion plate (21).

10. The adjustable headbox according to claim 8, wherein: It further includes a mounting seat (22); the damper plate (1) is installed in the headbox (2) through the mounting seat (22).

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