Headbox

Abstract

The utility model discloses a headbox which comprises a box body, a stirring assembly and a pulp homogenizing assembly, a first cavity and a second cavity which are communicated with each other are arranged in the box body, and the first cavity is lower than the second cavity; a stirring assembly is arranged in the first cavity, a slurry homogenizing assembly is arranged in the second cavity, and the first cavity is connected with a slurry inlet pipe; a slurry outlet is formed in the side, away from the first cavity, of the second cavity. Slurry is sequentially stirred, mixed and homogenized, so that the mixing and homogenizing effects are improved, and the quality of the slurry is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agitating unit technical field, especially in kind of flow box. BACKGROUND

[0002] Cement fiber board is mixed by cement, quartz sand and paper pulp fiber etc., need to agitate slurry, promote each slurry uniform mixing, and paper pulp fiber is easy to fiber flocculation in the stirring process, influence homogenization effect. CONTENT

[0003] The utility model discloses a kind of flow box, with stirring subassembly and slurry homogenizing subassembly, slurry is sequentially stirred mixed and fiber homogenization operation, improve mixing homogenization effect, improve slurry quality.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] A kind of flow box, including box, stirring subassembly and slurry homogenizing subassembly;

[0006] Box is equipped with the first cavity and the second cavity being communicated with each other in it;

[0007] The first cavity is lower than the second cavity;

[0008] First cavity is equipped with stirring subassembly, and stirring subassembly is equipped with stirring roller, and the periphery of stirring roller is equipped with first tooth;

[0009] Second cavity is equipped with slurry homogenizing subassembly, and slurry homogenizing subassembly is equipped with slurry homogenizing roller, and the periphery of slurry homogenizing roller is equipped with second tooth;

[0010] The first cavity is connected with inlet pipe;

[0011] Second cavity is equipped with outlet on the side away from the first cavity.

[0012] In some embodiments, inlet pipe is connected with the bottom of the first cavity;

[0013] Inlet pipe is Y-shaped pipe;

[0014] Outlet is arranged on the bottom of the side away from the second cavity of the first cavity.

[0015] In some embodiments, partition is arranged between the first cavity and the second cavity, and the partition is higher than the stirring roller of stirring subassembly;

[0016] The bottom of the first cavity is arc-shaped;

[0017] The bottom of the side close to the first cavity of the second cavity is equipped with arc plate.

[0018] In some embodiments, the length dimension of first tooth is greater than the length dimension of second tooth.

[0019] In some embodiments, the stirring roller is connected to the first motor drive; the first convex teeth are provided with multiple rows;

[0020] The length of the first protruding tooth is between 80-120 mm;

[0021] The homogenizing roller is connected to the second motor drive; the second convex teeth are provided with multiple rows;

[0022] The second protruding teeth are provided in multiple rows; and the length of the second protruding teeth is between 20-50 mm.

[0023] In some embodiments, two groups of homogenizing rollers are arranged horizontally side by side, and the rotation directions of the two homogenizing rollers are opposite or the same.

[0024] In some embodiments, it further includes a guide member and a brush flat roller;

[0025] The guide member includes an arc segment and a straight segment, and the arc segment is connected to the pulp outlet;

[0026] A brush roller is provided above the straight section and is drive-connected to the third motor.

[0027] In some embodiments, the brush roller is adjusted in the vertical direction by a first adjustment mechanism.

[0028] In some embodiments, a scraper is further included, which is arranged above the brush roller and located on a side close to the pulp outlet;

[0029] The scraper and the circumference of the brush roller are against each other;

[0030] The scraper adjusts the relative distance between the scraper and the brush roller through the second adjustment mechanism;

[0031] The second adjusting mechanism includes a second rotating shaft, a cantilever and a second hand wheel. The second rotating shaft is rotatably connected to the bracket. One end of the cantilever is linked to the second rotating shaft, the other end of the cantilever is connected to the scraper, and the second hand wheel is drivingly connected to the second rotating shaft.

[0032] In some embodiments, a base frame is further included, the base frame including an upper frame body and a lower frame body;

[0033] The upper frame is arranged below the box body, and the upper frame is rotated relative to the lower frame through a rotating mechanism;

[0034] The rotating mechanism includes a first rotating shaft and a driving cylinder. The first rotating shaft is arranged near the pulp inlet pipe. The upper frame and the lower frame are both rotatably connected to the first rotating shaft.

[0035] The driving cylinder is arranged opposite to the first rotating shaft, the lower end of the driving cylinder is connected to the lower frame body, and the upper end of the driving cylinder is connected to the upper frame body.

[0036] The beneficial effects of the utility model are as follows: the headbox is provided with a stirring component and a homogenizing component, and the slurry is stirred and mixed and fiber homogenized in sequence, thereby improving the mixing and homogenizing effect and improving the slurry quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural diagram of a headbox of the present utility model;

[0038] Figure 2 This is a diagram of the internal structure of the box of the present utility model;

[0039] Figure 3 for Figure 2 Another view of the structure diagram;

[0040] Figure 4 This is a structural diagram of the brush flat roller and the first adjustment mechanism of the utility model;

[0041] Figure 5 This is a structural diagram of the scraper and the second adjustment mechanism of the utility model;

[0042] Figure 6 This is a structural diagram of the chassis of the present utility model;

[0043] Wherein: 1- box body; 1a- first cavity; 1b- second cavity; 11- pulp inlet pipe; 12- pulp outlet; 13- partition; 14- curved plate; 2- stirring assembly; 21- stirring roller; 22- first convex tooth; 23- first motor; 3- homogenizing assembly; 31- homogenizing roller; 32- second convex tooth; 33- second motor; 4- guide; 41- curved segment; 42- straight segment; 5- brush roller; 51- third motor; 52-first adjusting mechanism; 521-bracket; 522-slider; 523-guide rail; 524-vertical plate; 525-screw; 526-nut; 527-first handwheel; 6-scraper; 61-second adjusting mechanism; 611-second rotating shaft; 612-cantilever; 613-second handwheel; 7-base frame; 71-lower frame; 72-upper frame; 73-rotating mechanism; 731-first rotating shaft; 732-driving cylinder. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings.

[0045] refer to Figures 1 to 6 , a headbox is used to stir and mix the slurry of cement fiberboard, which is a mixture of cement, quartz sand and pulp fiber.

[0046] refer to Figure 1 and Figure 2 , the headbox includes a box body 1, a stirring component 2 and a homogenizing component 3;

[0047] The box body 1 is provided with a first cavity 1a and a second cavity 1b which are connected to each other;

[0048] The first cavity 1a is lower than the second cavity 1b;

[0049] A stirring assembly 2 is provided in the first cavity 1a. The stirring assembly 2 is provided with a stirring roller 21. The circumference of the stirring roller 21 is provided with first protruding teeth 22 for stirring the slurry.

[0050] A homogenizing assembly 3 is provided in the second cavity 1b. The homogenizing assembly 3 is provided with a homogenizing roller 31. The circumference of the homogenizing roller 31 is provided with second convex teeth 32 for homogenizing the slurry to further improve the uniformity of mixing, especially to improve the uniformity of the pulp fibers.

[0051] The first cavity 1a is connected to the slurry inlet pipe 11;

[0052] A slurry outlet 12 is provided on a side of the second cavity 1b away from the first cavity 1a;

[0053] The slurry enters the first cavity 1a through the slurry inlet pipe 11, and the stirring component 2 stirs the slurry to promote the dispersion and mixing of cement, quartz sand and pulp fibers. Then, the slurry flows upward into the second cavity 1b, and the homogenizing component 3 homogenizes the slurry to promote a more uniform dispersion of the pulp fibers. Finally, the slurry flows out from the slurry outlet 12.

[0054] Since the first cavity 1a is lower than the second cavity 1b, the slurry must be stirred by the stirring component 2 before flowing into the second cavity 1b, ensuring that the slurry is fully stirred and mixed before being homogenized, so that the cement, quartz sand and pulp fibers are mixed more fully and the pulp fibers are more evenly homogenized, thereby improving the quality of the slurry and the quality of the cement fiberboard.

[0055] refer to Figure 2 , the slurry inlet pipe 11 is connected to the bottom of the first cavity 1a, promoting the slurry to flow from bottom to top;

[0056] The slurry inlet pipe 11 is a Y-shaped pipe, and the slurry can flow into the first cavity 1a through two inlets, which makes the flow of the slurry more balanced;

[0057] The slurry outlet 12 is provided at the bottom of the first cavity 1a on a side away from the second cavity 1b, so that the slurry can flow out of the slurry outlet 12 only after being homogenized by the homogenizing component 3 .

[0058] refer to Figure 2 A partition 13 is provided between the first cavity 1a and the second cavity 1b. The partition 13 is higher than the stirring roller 21 of the stirring assembly 2, but not higher than the homogenizing roller 31 of the homogenizing assembly 3; ensuring that the slurry can flow into the second cavity 1b only after being stirred by the stirring assembly 2;

[0059] The bottom of the first cavity 1a is arc-shaped, which facilitates the smooth flow of the pulp;

[0060] The second cavity 1b is provided with an arc-shaped plate 14 at the bottom of the side close to the first cavity 1a, which can reduce the accumulation of the pulp at the corner and reduce the flow resistance of the pulp.

[0061] The length of the first tooth 22 is greater than that of the second tooth 32. The relatively long first tooth 22 can increase the stirring area and improve the stirring effect, and the relatively short second tooth 32 can provide appropriate shear force or stirring force to facilitate the homogenization of the pulp fibers.

[0062] The stirring roller 21 is drivingly connected with the first motor 23. The first tooth 22 is provided with multiple rows, and the multiple rows of the first tooth 22 are staggered, which is beneficial to improve the uniformity of stirring.

[0063] The length of the first tooth 22 is between 80-120mm;

[0064] The homogenizing roller 31 is drivingly connected with the second motor 33. The second tooth 32 is provided with multiple rows, and the multiple rows of the second tooth 32 are staggered, which is beneficial to improve the homogenization effect.

[0065] The second tooth 32 is provided with multiple rows. The length of the second tooth 32 is between 20-50mm.

[0066] With reference to Figure 2 , the homogenizing assembly 3 is provided with two groups horizontally and side by side, and the rotating directions of the two homogenizing rollers 31 are opposite or the same, which further improves the stirring and homogenization effect.

[0067] With reference to Figure 2 , it further comprises a guide 4 and a flattening roller 5;

[0068] The guide 4 comprises an arc-shaped section 41 and a straight section 42. The cross section of the guide 4 is angular, which is composed of a horizontal wall and a vertical wall. The guide 4 is oppositely provided with two.

[0069] The arc-shaped section 41 is connected with the pulp outlet 12. The straight section 42 is provided above the flattening roller 5, which is drivingly connected with the third motor 51.

[0070] In this way, the pulp after stirring and homogenization flows out from the pulp outlet 12, flows upward along the arc-shaped section 41 of the guide 4, and then flows to the straight section 42. The flattening roller 5 facilitates the surface of the pulp to be flat.

[0071] With reference to Figure 4 , the flattening roller 5 is vertically adjusted by the first adjusting mechanism 52.

[0072] The first adjusting mechanism 52 includes a bracket 521, a slider 522, a guide rail 523, a vertical plate 524, a screw rod 525, a nut 526 and a first hand wheel 527; the brush roller 5 is rotatably connected to the bracket 521, the brush roller 5 is driven by the third motor 51, the third motor 51 is fixed to the bracket 521, the bracket 521 is connected to the slider 522, the guide rail 523 is connected to the vertical plate 524, the vertical plate 524 is fixed to the outside of the box body 1, the slider 522 can slide relative to the guide rail 523, the top of the vertical plate 524 is provided with a nut 526, the screw rod 525 is threadedly connected to the nut 526, the upper end of the screw rod 525 is provided with a first hand wheel 527, and the lower end of the screw rod 525 is rotatably connected to the bracket 521; when the first hand wheel 527 is turned, the screw rod 525 rotates, and the bracket 521 is driven to move in the vertical direction under the action of the thread, thereby driving the brush roller 5 to move vertically.

[0073] refer to Figure 2 and Figure 5 , further comprising a scraper 6, which is provided above the brush roller 5 and located on the side close to the slurry outlet, and the scraper 6 abuts against the circumference of the brush roller 5. Thus, the scraper 6 can scrape off the slurry adhering to the surface of the brush roller 5, which is beneficial to improving the flattening effect of the brush roller 5.

[0074] The scraper 6 can adjust the relative distance between the scraper 6 and the brush roller 5 through the second adjustment mechanism 61. For example, the second adjustment mechanism 61 can realize the rotation or swing of the scraper 6 in the horizontal direction, so that the scraper 6 contacts the brush roller 5. The second adjustment mechanism 61 includes a second rotating shaft 611, a cantilever 612 and a second hand wheel 613. The second rotating shaft 611 is rotatably connected to the bracket 521. One end of the cantilever 612 is linked to the second rotating shaft 611. The other end of the cantilever 612 is connected to the scraper 6. The second hand wheel 613 is drivingly connected to the second rotating shaft 611.

[0075] refer to Figure 6 , further comprising a base frame 7, the base frame 7 comprising an upper frame body 72 and a lower frame body 71;

[0076] The upper frame 72 is provided below the box body 1 and is rotated relative to the lower frame 71 by a rotating mechanism 73.

[0077] The rotating mechanism 73 includes a first rotating shaft 731 and a driving cylinder 732. The first rotating shaft 731 is provided on the top of the lower frame 71 and is provided close to the side of the pulp inlet pipe 11. Both the upper frame 72 and the lower frame 71 are rotatably connected to the first rotating shaft 731 through a bearing seat.

[0078] The driving cylinder 732 is disposed opposite to the first rotating shaft 731 , the lower end of the driving cylinder 732 is connected to the lower frame 71 , and the upper end of the driving cylinder 732 is connected to the upper frame 72 .

[0079] Thus, the driving cylinder 732 may be a hydraulic cylinder, etc. The driving cylinder 732 drives the upper frame 72 to rotate in the vertical direction; when the interior of the box body 1 is cleaned, the angle of the box body 1 can be adjusted by the driving cylinder 732 to cause it to be placed at an angle, which is convenient for cleaning.

[0080] Working principle: The slurry enters the bottom of the first cavity 1a through the slurry inlet pipe 11, the stirring component 2 stirs and mixes the slurry, and then the slurry flows upward and flows into the second cavity 1b, and the homogenizing component 3 stirs and homogenizes the slurry. During this period, the slurry flows horizontally in the direction away from the stirring component 2, and then the slurry flows out from the slurry outlet 12 and flows or feeds under the guidance of the guide 4, and the brush roller 5 flattens the surface of the slurry.

[0081] The above disclosure is only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A headbox, characterized in that: It comprises a box body (1), a stirring component (2) and a homogenizing component (3); The box (1) is provided with a first cavity (1a) and a second cavity (1b) which are communicated with each other; The first cavity (1a) is lower than the second cavity (1b); A stirring assembly (2) is provided in the first cavity (1a), the stirring assembly (2) is provided with a stirring roller (21), and a first convex tooth (22) is provided on the circumference of the stirring roller (21); A homogenizing component (3) is provided in the second cavity (1b), the homogenizing component (3) is provided with a homogenizing roller (31), and the circumferential surface of the homogenizing roller (31) is provided with second convex teeth (32); The first cavity (1a) is connected to the slurry inlet pipe (11); A pulp outlet (12) is provided on a side of the second cavity (1b) away from the first cavity (1a).

2. A headbox according to claim 1, characterized in that: The slurry inlet pipe (11) is connected to the bottom of the first cavity (1a); The slurry inlet pipe (11) is a Y-shaped pipe; The slurry outlet (12) is provided at the bottom of the first cavity (1a) on a side away from the second cavity (1b).

3. A headbox according to claim 1, characterized in that: A partition (13) is provided between the first cavity (1a) and the second cavity (1b), and the partition (13) is higher than the stirring roller (21) of the stirring assembly (2); The bottom of the first cavity (1a) is arc-shaped; An arc-shaped plate (14) is provided at the bottom of the second cavity (1b) on a side close to the first cavity (1a).

4. A headbox according to claim 1, characterized in that: The length dimension of the first protruding tooth (22) is greater than the length dimension of the second protruding tooth (32).

5. A headbox according to claim 1, characterized in that: The stirring roller (21) is drivingly connected to the first motor (23); the first protruding teeth (22) are provided with multiple rows; The length of the first protruding tooth (22) is between 80-120 mm; The homogenizing roller (31) is drive-connected to the second motor (33); the second protruding teeth (32) are provided in multiple rows; The second protruding teeth (32) are provided in multiple rows; the length of the second protruding teeth (32) is between 20-50 mm.

6. A headbox according to claim 5, characterized in that: The homogenizing components (3) are arranged in two groups horizontally and side by side, and the rotation directions of the two groups of homogenizing rollers (31) are opposite or the same.

7. A headbox according to claim 1, characterized in that: It also includes a guide member (4) and a brush roller (5); The guide member (4) comprises an arc segment (41) and a straight segment (42), and the arc segment (41) is connected to the pulp outlet (12); A brush roller (5) is provided above the straight section (42), and the brush roller (5) is drivingly connected to a third motor (51).

8. A headbox according to claim 7, characterized in that: The brush roller (5) is adjusted in the vertical direction by a first adjustment mechanism (52).

9. A headbox according to claim 7, characterized in that: It also includes a scraper (6), which is arranged above the brush roller (5) and located on a side close to the pulp outlet; The scraper (6) abuts against the circumferential surface of the brush roller (5); The scraper (6) adjusts the relative distance between the scraper (6) and the brush roller (5) through a second adjustment mechanism (61); The second adjusting mechanism (61) includes a second rotating shaft (611), a cantilever (612) and a second hand wheel (613); the second rotating shaft (611) is rotatably connected to the bracket (521); one end of the cantilever (612) is linked to the second rotating shaft (611); the other end of the cantilever (612) is connected to the scraper (6); and the second hand wheel (613) is drivingly connected to the second rotating shaft (611).

10. The headbox according to claim 1, characterized in that: It also includes a base frame (7), wherein the base frame (7) includes an upper frame body (72) and a lower frame body (71); The upper frame (72) is arranged below the box body (1), and the upper frame (72) is rotated relative to the lower frame (71) via a rotating mechanism (73); The rotating mechanism (73) includes a first rotating shaft (731) and a driving cylinder (732), wherein the first rotating shaft (731) is arranged on the top of the lower frame (71), and the first rotating shaft (731) is arranged close to the side of the pulp inlet pipe (11), and the upper frame (72) is rotatably connected to the first rotating shaft (731); The driving cylinder (732) is arranged opposite to the first rotating shaft (731), the lower end of the driving cylinder (732) is connected to the lower frame (71), and the upper end of the driving cylinder (732) is connected to the upper frame (72).

Images