Headbox

Abstract

The utility model discloses a headbox, which belongs to the technical field of calcium silicate board production and comprises a box body, a feed port and a discharge port, the feed port and the discharge port are arranged on the left side and the right side of the box body, a first stirring roller and a second stirring roller are sequentially arranged in the box body from left to right, and a plurality of stirring blades forming included angles with the axial direction are axially distributed on the first stirring roller. A plurality of stirring pieces are arranged on the surface of the second stirring roller, the first stirring roller is provided with a plurality of circular plate stirring pieces forming an included angle with the axial direction, slurry at the bottom of the box body can be fully raised during stirring, vortex is formed, and the slurry is fully stirred and is not prone to sedimentation. The slurry feeding port is formed in the first stirring roller, so that the slurry gushing out from the lower portion can be fully utilized, the slurry at the bottom of the box body is driven to roll upwards, and the slurry is not prone to sinking to the bottom.

Description

Technical Field

[0001] This utility model relates to the field of calcium silicate board production technology, and specifically to a headbox. Background Technology

[0002] Calcium silicate board is a new type of green and environmentally friendly building material. It uses loose short fibers such as inorganic mineral fibers or cellulose fibers as reinforcing materials and siliceous and calcareous materials as the main binding materials. After pulping and molding, it forms a calcium silicate gel and is made into a board. This board not only has the functions of traditional gypsum board, but also has superior fire resistance, moisture resistance and long service life. It is widely used in building decoration. The existing calcium silicate board production line consists of at least a headbox and a conveyor belt. The headbox is located at one end of the conveyor belt. The mixed slurry is injected into the headbox. The headbox has a strip-shaped opening on the side facing the conveyor belt for the slurry to flow out and form on the conveyor belt. However, the existing headbox is prone to causing the denser siliceous and calcareous materials in the slurry to settle at the bottom, which needs to be improved. Utility Model Content

[0003] To address the above problems, this utility model provides a headbox to solve one or more technical problems existing in the prior art, and at least provides a beneficial option or creates conditions.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A headbox includes a box body, and an inlet and an outlet located on the left and right sides of the box body. A first stirring roller and a second stirring roller are arranged sequentially from left to right inside the box body. The first stirring roller has a plurality of stirring blades distributed along the axial direction at an angle to the axial direction. The surface of the second stirring roller is provided with a plurality of shovels.

[0006] Preferably, the stirring plate is a circular plate that fits with the bottom of the tank.

[0007] Preferably, the stirring blades are parallel to each other, and the stirring blades form a 45-degree angle with the axial direction of the first stirring roller.

[0008] Preferably, the stirring blades are welded to the first stirring roller, and the spacing between the stirring blades is 10 cm.

[0009] Preferably, there are two feed inlets, both located at the bottom of the tank below the first stirring roller.

[0010] Preferably, a partition is provided between the first stirring roller and the second stirring roller, so that the box body forms two cavities on the left and right sides, and the partition is higher than the bottom of the box to form a slurry inlet.

[0011] Preferably, there are two second stirring rollers, and the blades of the two second stirring rollers are staggered.

[0012] Preferably, the paddle is made of steel, the paddle is welded to the second stirring roller, and the paddle is fitted with the bottom of the box with a clearance.

[0013] Preferably, a cover is provided on top of the box.

[0014] Preferably, the cover is mesh.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model has a number of circular stirring plates that are angled to the axial direction on the first stirring roller. During stirring, the slurry at the bottom of the tank can be fully lifted and a vortex is formed, so that the slurry is fully stirred and does not easily settle.

[0017] 2. A partition higher than the bottom of the box is provided between the first and second mixing rollers, so that the slurry flows evenly into the right cavity through the slurry inlet and then flows out of the right cavity onto the conveyor belt.

[0018] 3. By setting a slurry inlet on the first mixing roller, the slurry can be fully utilized to flow out from below, causing the slurry at the bottom of the tank to roll upwards, making it less likely to sink to the bottom. Attached Figure Description

[0019] Figure 1 This is a first disassembled diagram of an embodiment;

[0020] Figure 2 This is a second disassembled diagram of the embodiment;

[0021] Figure 3 This is a schematic diagram of the first stirring roller;

[0022] Figure 4 This is a schematic diagram of the second stirring roller;

[0023] Figure 5 This is an overall schematic diagram of the embodiment;

[0024] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Feed inlet; 3. First stirring roller; 4. Second stirring roller; 5. Stirring blade; 6. Paddle; 7. Baffle plate; 8. Slurry inlet; 9. Cover. Detailed Implementation

[0025] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0026] Example: Reference Figure 1-5The present invention discloses a headbox, comprising a headbox body 1, with an inlet 2 and an outlet on the left and right sides of the headbox body 1, respectively. Inside the headbox body 1, from left to right, are arranged a first stirring roller 3 and a second stirring roller 4. The first stirring roller 3 has several stirring blades 5 arranged at an angle to the axial direction. The surface of the second stirring roller 4 is provided with several shovels 6. After the slurry enters the headbox body 1 through the inlet 2, the rotating first stirring roller 3 drives the stirring blades 5 to continuously agitate, forming a vortex, making it difficult for the slurry to settle to the bottom. In a preferred embodiment, the stirring blades 5 are circular plates that fit with a gap between the bottom of the headbox, allowing the bottom of the headbox to... The slurry can be more fully agitated, and the agitator 5 is an inclined circular plate, which makes the slurry form a stable vortex along the axis of the first agitator roller 3, and the slurry is agitated more fully. In a further preferred embodiment, the agitator 5 is parallel to each other, and the agitator 5 forms a 45-degree angle with the axis of the first agitator roller 3. The agitator 5 is welded to the first agitator roller 3, and the spacing between the agitator 5 is 10 cm, which makes the agitation of the agitator 5 more uniform and sufficient. The surface of the second agitator roller 4 is provided with several paddles 6. When rotating, the paddles 6 below the second agitator roller 4 move towards the discharge port, conveying the slurry to the discharge port.

[0027] Specifically, there are two feed inlets 2, both located at the bottom of the tank below the first mixing roller 3. The slurry flows into the tank 1 from the bottom up, which can cause the slurry at the bottom of the tank 1 to rise, so that the slurry does not sink to the bottom. After the work is completed, the excess slurry exits from the feed inlet 2, and the wastewater after cleaning also flows out of the tank from the feed inlet 2 for easy cleaning.

[0028] Specifically, a partition 7 is provided between the first stirring roller 3 and the second stirring roller 4, so that the box body 1 forms two cavities, left and right. The partition 7 is higher than the bottom of the box to form a slurry inlet 8. The slurry inlet 8 controls the flow rate of slurry into the right cavity, so as to avoid too much slurry in the right cavity and make it difficult to control the discharge flow rate and speed of the outlet.

[0029] Specifically, there are two second stirring rollers 4, and the blades 6 of the two second stirring rollers 4 are staggered to each other, so that the slurry at the bottom of the box 1 can be evenly and fully delivered to the discharge port. In the preferred embodiment, the blades 6 are made of steel and are welded to the second stirring rollers 4. The blades 6 are fitted with the bottom of the box with a gap to reduce the deposition of slurry at the bottom of the box.

[0030] Specifically, a cover 9 is provided on the top of the box 1 to prevent debris from falling into the box 1. In the preferred embodiment, the cover 9 is mesh, which facilitates observation of the slurry inside the box 1.

[0031] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The above provides a detailed description of one embodiment of the present invention, focusing on a headbox structure. However, the description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A headbox, comprising a headbox body (1), and an inlet (2) and an outlet disposed on the left and right sides of the headbox body (1), wherein a first stirring roller (3) and a second stirring roller (4) are disposed sequentially from left to right inside the headbox body (1), characterized in that: The first stirring roller (3) has several stirring blades (5) that are at an angle to the axial direction, and the surface of the second stirring roller (4) is provided with several shovels (6).

2. The headbox according to claim 1, characterized in that: The stirring plate (5) is a circular plate that fits with the bottom of the tank.

3. The headbox according to claim 2, characterized in that: The stirring blades (5) are parallel to each other, and the stirring blades (5) form a 45-degree angle with the axial direction of the first stirring roller (3).

4. The headbox according to claim 3, characterized in that: The stirring blades (5) are welded to the first stirring roller (3), and the spacing between the stirring blades (5) is 10 cm.

5. The headbox according to claim 1, characterized in that: There are two feed inlets (2), both located at the bottom of the box below the first stirring roller (3).

6. The headbox according to claim 1, characterized in that: A partition (7) is provided between the first stirring roller (3) and the second stirring roller (4), so that the box body (1) forms two cavities on the left and right sides. The partition (7) is higher than the bottom of the box to form a slurry inlet (8).

7. The headbox according to claim 6, characterized in that: There are two second stirring rollers (4), and the paddles (6) of the two second stirring rollers (4) are staggered.

8. The headbox according to claim 7, characterized in that: The paddle (6) is made of steel and is welded to the second stirring roller (4). The paddle (6) is fitted with the bottom of the box with a clearance.

9. The headbox according to claim 1, characterized in that: The box (1) is provided with a cover (9) on top.

10. The headbox according to claim 9, characterized in that: The cover (9) is mesh.

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