A gypsum slurry uniform discharge pipe
By designing the gypsum slurry discharge pipe with a double-layer venturi pipe structure and a mixing cavity, the problem of uneven slurry density is solved and the quality of gypsum board is improved.
Patent Information
- Application Number
- CN202421540240.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In the existing gypsum slurry discharge equipment, the density of the slurry in the discharge barrel is uneven, resulting in a decrease in the gypsum board forming quality. The existing spoiler structure has poor effect on improving the overall uniformity of the slurry.
A gypsum slurry uniform discharge pipe is designed, adopting a double-layer Venturi tube structure, and by forming a mixing cavity between the pipe body and the outer tube, the first and second through-hole split structures and the design of the baffle ring plate, further spoiler mixing of the slurry is achieved.
It effectively improves the uniformity of density distribution of gypsum slurry, avoids the decline in the molding quality of gypsum board, and improves the overall uniformity of slurry.
Smart Images
Figure CN222739084U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gypsum slurry discharging equipment, in particular to a gypsum slurry uniform discharging pipe. Background Art
[0002] The side-discharge mixer used in gypsum board production will have uneven slurry density around the discharge port of the discharge cylinder due to centrifugal force, with a distribution state around the discharge port with low density in the upper part and high density in the lower part. As a result, when the slurry is discharged through the discharge pipe, the upper layer of the slurry has low density and the lower layer has high density. Then, when the slurry is spread out, the upper layer of the slurry disperses to both sides, resulting in uneven density on both sides of the gypsum board, which seriously affects the quality of the board.
[0003] The adjustability of the slurry uniformity through the foaming agent, water channel opening, etc. is relatively low, and it is unable to solve the problem of large deviation in weight on both sides of the gypsum board produced under high and low vehicle speed switching conditions. In the prior art, an adjustable spoiler structure is added to the lower side of the gypsum slurry discharge cylinder, near the discharge port, which can be flexibly adjusted according to the vehicle speed, unit weight, and weight of the materials on both sides, so as to change the discharge flow direction and improve the uniformity of the slurry. Common spoiler structures in existing discharge cylinders include spoilers, spoiler rods, etc.
[0004] Although the turbulent structure in the discharge barrel can change the discharge flow direction to a certain extent and re-mix the originally unevenly mixed gypsum slurry with different densities, the material flow is not regularly divided into two upper and lower streams. For the multiple streams of different densities formed in the discharge pipe, the existing turbulent structure has a poor effect on improving the overall uniformity of the gypsum slurry. Utility Model Content
[0005] The utility model aims to provide a gypsum slurry uniform discharging pipe, so as to facilitate turbulent mixing of the gypsum slurry in the discharging pipe, so that the overall density distribution of the gypsum slurry is uniform.
[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:
[0007] The utility model provides a gypsum slurry uniform discharge pipe, comprising: a pipe body, wherein the middle part of the pipe body is contracted to form an inlet section, a contraction section, a throat section and an expansion section in sequence along the flow direction of the fluid, the pipe diameter of the inlet section is larger than that of the expansion section; the contraction section is provided with annularly arranged first through holes at equal intervals; wherein an outer pipe surrounding the contraction section, the throat section and the expansion section is provided on the outer wall of the pipe body, a fluid mixing chamber is formed between the outer pipe and the outer wall of the pipe body, the end of the outer pipe located downstream in the flow direction of the fluid is open, so that the fluid in the mixing chamber can be discharged along the outer wall of the pipe body through the open end of the outer pipe and merge with the fluid flowing through the inside of the pipe body; the two ends of the outer pipe and the pipe body are smoothly transitioned to form an arc-shaped inner wall; the axis of the first through hole is tangent to the arc-shaped inner wall of the outer pipe, so that the fluid can enter the mixing chamber along the arc-shaped inner wall of the outer pipe.
[0008] Furthermore, the throat section is provided with annularly arranged second through holes at equal intervals, wherein the axes of the second through holes are perpendicular to the circumferential wall section of the throat section, and the fluid in the second through holes enters the mixing chamber and mixes with the fluid in the outer tube.
[0009] Furthermore, the tube body is provided with a baffle plate surrounded by the outer wall of the expanded section; wherein, the baffle plate is arranged obliquely, and the inclination direction of the baffle plate is along the normal direction of the peripheral wall of the expanded section, and the baffle plate is used to turn back the fluid flowing along the outer wall of the tube body in the mixing chamber; a plurality of baffle plates are provided on the outer wall of the expanded section, and the inclination angles of the baffle plates are different.
[0010] Furthermore, the throat section is provided with annularly arranged second through holes at equal intervals; wherein the axes of the second through holes are inclined toward the baffle ring plate.
[0011] Furthermore, the baffle ring plate is in the shape of a wave plate.
[0012] Furthermore, the outer tube comprises a fixed section, a deformable section and an opening section which are connected in sequence. The fixed section and the opening section are made of rigid materials, the deformable section is made of elastic material, and the deformable section expands when subjected to fluid pressure.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model configures the discharge pipe of the gypsum slurry as a double-layer venturi tube structure, thereby accelerating the flow of the gypsum slurry in the pipe body and further utilizing the mixing chamber formed between the pipe body and the outer pipe to turbulently mix the gypsum slurry, thereby making the overall density distribution of the gypsum slurry uniform, thereby avoiding the problem of reduced quality of gypsum board molding due to uneven gypsum slurry discharge density. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0016] Figure 1 A three-dimensional structural diagram of a gypsum slurry uniform discharge pipe provided by the utility model;
[0017] Figure 2 for Figure 1 A cross-sectional view of
[0018] Figure 3 for Figure 2 Enlarged view of middle Ⅰ;
[0019] Figure 4 A partial enlarged view of a tube body in another embodiment provided by the utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of a baffle ring plate in another embodiment provided by the utility model.
[0021] Figure 6 for Figure 5 Side view of
[0022] Figure 7 This is a cross-sectional view of a tube body in another embodiment provided by the utility model.
[0023] The numbers in the figure represent the following:
[0024] 1. Tube body; 11. Inlet section; 12. Contraction section; 121. First through hole; 13. Throat section; 131. Second through hole; 14. Expansion section; 141. Baffle ring; 15. Outer tube; 151. Fixed section; 152. Deformation section; 153. Opening section. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] like Figure 1 As shown, the utility model provides a gypsum slurry uniform discharge pipe, comprising:
[0027] The tube body 1 is contracted in the middle to form an inlet section 11, a contraction section 12, a throat section 13, and an expansion section 14 in sequence along the flow direction of the fluid. The diameter of the inlet section 11 is larger than that of the expansion section 14. The contraction section 12 is provided with annularly arranged first through holes 121 at equal intervals.
[0028] Among them, an outer tube 15 is provided on the outer wall of the tube body 1, which is surrounded by the contraction section 12, the throat section 13, and the expansion section 14. A fluid mixing chamber is formed between the outer tube 15 and the outer wall of the tube body 1. The end of the outer tube 15 located downstream in the fluid flow direction is open, so that the fluid in the mixing chamber can be discharged along the outer wall of the tube body 1 through the open end of the outer tube 15 and merge with the fluid flowing through the inside of the tube body 1; the two ends of the outer tube 15 and the tube body 1 are smoothly transitioned to form an arc-shaped inner wall; the axis of the first through hole 121 is tangent to the arc-shaped inner wall of the outer tube 15, so that the fluid can enter the mixing chamber along the arc-shaped inner wall of the outer tube 15.
[0029] The utility model aims to configure the discharge pipe of the gypsum slurry as a double-layer venturi tube structure, so that the gypsum slurry can be accelerated to flow through the pipe body 1, and at the same time, the gypsum slurry can be further turbulently mixed by utilizing the mixing chamber formed between the pipe body 1 and the outer pipe 15, so that the overall density distribution of the gypsum slurry is uniform, thereby avoiding the problem of reduced quality of gypsum board molding due to uneven gypsum slurry discharge density. Specifically, when the gypsum slurry is discharged from the side-discharging mixer through the discharge pipe provided by the utility model, when the gypsum slurry enters from the inlet section 11 and flows through the contraction section 12, part of the gypsum slurry flows out of the inner area of the tube body 1 through the first through hole 121 opened thereon and enters the mixing chamber. The multiple first through holes 121 can homogenize the gypsum slurry flowing through, and then enters the mixing chamber and flows out from its open end to complete the discharge of this part of the gypsum slurry; the remaining part of the gypsum slurry continues to accelerate and flow into the throat section 13. Due to the change in flow velocity caused by the diversion of the first through hole 121 and the acceleration of this part of the gypsum slurry after flowing through the contraction section 12, this part of the gypsum slurry generates turbulence during the flow process, thereby increasing the mixing uniformity of the gypsum slurry, and finally flows out through the expansion section 14 and merges with the gypsum slurry flowing out of the mixing chamber, thereby realizing the complete discharge process of the gypsum slurry.
[0030] In the above embodiment, the gypsum slurry is split into two streams through the first through hole 121 and homogeneously mixed respectively, but the two streams cannot be fully mixed, and it is difficult to obtain a good mixing effect when the fluidity of the gypsum slurry in the outer tube 15 is poor.
[0031] In order to solve the above problems, Figure 2-3 As shown, in the preferred embodiment provided by the utility model based on the above embodiment, the throat section 13 is provided with annularly arranged second through holes 131 at equal intervals;
[0032] The axis of the second through hole 131 is perpendicular to the circumferential wall section of the throat section 13 , and the fluid in the second through hole 131 mixes with the fluid in the outer tube 15 after entering the mixing chamber.
[0033] In this embodiment, by setting the second through hole 131, the gypsum slurry diversion in the outer tube 15 can be disturbed and mixed by the gypsum slurry diversion flowing out of the second through hole 131, thereby improving the mixing degree of the gypsum slurry in the outer tube 15.
[0034] In the above embodiment, the gypsum slurry in the outer tube 15 easily flows out from the open end of the outer tube 15 through the outer wall of the expansion section 14, which shortens the mixing time of the gypsum slurry in the outer tube 15 and is not conducive to improving the mixing uniformity of the gypsum slurry.
[0035] In order to solve the above problems, Figure 3 As shown, in the preferred embodiment provided by the utility model based on the above-mentioned embodiment, the pipe body 1 is provided with a baffle ring plate 141 surrounding the outer wall of the expansion section 14;
[0036] Among them, the deflector ring plate 141 is arranged at an angle, and the inclination direction of the deflector ring plate 141 is along the normal direction of the peripheral wall of the expansion section 14. The deflector ring plate 141 is used to make the fluid flowing along the outer wall of the tube body 1 in the mixing chamber return; a plurality of deflector ring plates 141 are arranged on the outer wall of the expansion section 14, and the inclination angles of the deflector ring plates 141 are different.
[0037] In this embodiment, by setting the deflection ring plates 141 at different angles, the gypsum slurry can be deflected before flowing out of the open end of the outer tube 15, thereby extending the mixing time of the gypsum slurry in the outer tube 15 and improving the overall mixing degree of the gypsum slurry.
[0038] In order to further improve the deflection effect of the deflection ring plate 141 on the gypsum slurry, Figure 4 As shown, in the preferred embodiment provided by the utility model based on the above embodiment, the throat section 13 is provided with annularly arranged second through holes 131 at equal intervals;
[0039] The axis of the second through hole 131 is tilted toward the baffle ring 141 .
[0040] In this embodiment, by tilting the axis of the second through hole 131 toward the deflection ring plate 141, the gypsum slurry flow in the second through hole 131 can directly impact the deflection ring plate 141 and then be deflected, and then mixed with the gypsum slurry flow in the outer tube 15 at the same time, thereby improving the overall mixing uniformity of the gypsum slurry.
[0041] In order to increase the contact area between the baffle plate 141 and the gypsum slurry and improve the baffle capacity, Figure 5-6 As shown, the baffle ring plate 141 is in the shape of a wave plate.
[0042] In order to ensure that the first through hole 121 and the second through hole 131 can realize the diversion effect on the gypsum slurry, Figure 7 As shown, in the preferred embodiment provided by the utility model based on the above embodiment, the outer tube 15 comprises a fixed section 151, a deformation section 152, and an opening section 153 connected in sequence, the fixed section 151 and the opening section 153 are made of rigid materials, the deformation section 152 is made of elastic material, and the deformation section 152 expands when subjected to fluid pressure. In this embodiment, by setting the deformation section 152 as an elastic material, it can be deformed when filled with gypsum slurry, and thus can accommodate more gypsum slurry, so as to avoid the gypsum slurry flowing quickly and filling the mixing chamber quickly, and thus avoid the fluid pressure generated on the diversion in the first through hole 121 and the second through hole 131 to form a blocking effect, thereby hindering the diversion of the first through hole 121 and the second through hole 131.
[0043] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.
Claims
1. A gypsum slurry uniform discharge pipe, characterized in that: include: The pipe body (1) is contracted in the middle to form an inlet section (11), a contraction section (12), a throat section (13), and an expansion section (14) in sequence along the flow direction of the fluid, and the diameter of the inlet section (11) is larger than that of the expansion section (14); The contraction section (12) is provided with first through holes (121) arranged in an annular pattern at equal intervals; The outer wall of the tube body (1) is provided with an outer tube (15) surrounding the contraction section (12), the throat section (13) and the expansion section (14); a fluid mixing chamber is formed between the outer tube (15) and the outer wall of the tube body (1); the end of the outer tube (15) located downstream in the fluid flow direction is open, so that the fluid in the mixing chamber can be discharged along the outer wall of the tube body (1) through the open end of the outer tube (15) and merge with the fluid flowing through the interior of the tube body (1); The two ends of the outer tube (15) and the tube body (1) smoothly transition to form an arc-shaped inner wall; The axis of the first through hole (121) is tangent to the arc-shaped inner wall of the outer tube (15), so that the fluid can enter the mixing chamber along the arc-shaped inner wall of the outer tube (15).
2. A gypsum slurry uniform discharge pipe according to claim 1, characterized in that: The throat section (13) is provided with second through holes (131) arranged in an annular pattern at equal intervals; The axis of the second through hole (131) is perpendicular to the circumferential wall section of the throat section (13), and the fluid in the second through hole (131) mixes with the fluid in the outer tube (15) after entering the mixing chamber.
3. A gypsum slurry uniform discharge pipe according to claim 1, characterized in that: The tube body (1) is provided with a baffle ring plate (141) surrounding the outer wall of the expansion section (14); The baffle ring plate (141) is arranged obliquely, and the inclination direction of the baffle ring plate (141) is along the normal surface direction of the peripheral wall of the expansion section (14), and the baffle ring plate (141) is used to turn back the fluid in the mixing chamber that flows along the outer wall of the tube body (1); A plurality of baffle ring plates (141) are provided on the outer wall of the expansion section (14), and the baffle ring plates (141) have different inclination angles.
4. A gypsum slurry uniform discharge pipe according to claim 3, characterized in that: The throat section (13) is provided with second through holes (131) arranged in an annular pattern at equal intervals; Wherein, the axis of the second through hole (131) is arranged to be inclined toward the baffle ring plate (141).
5. A gypsum slurry uniform discharge pipe according to claim 4, characterized in that: The baffle ring plate (141) is in the shape of a wave plate.
6. A gypsum slurry uniform discharge pipe according to claim 5, characterized in that: The outer tube (15) comprises a fixed section (151), a deformable section (152), and an opening section (153) which are connected in sequence; the fixed section (151) and the opening section (153) are made of rigid materials; the deformable section (152) is made of elastic material; and the deformable section (152) expands when subjected to fluid pressure.