CN220834255U - Slurry defoaming device - Google Patents
Slurry defoaming device Download PDFInfo
- Publication number
- CN220834255U CN220834255U CN202322705520.XU CN202322705520U CN220834255U CN 220834255 U CN220834255 U CN 220834255U CN 202322705520 U CN202322705520 U CN 202322705520U CN 220834255 U CN220834255 U CN 220834255U
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- film forming
- overflow
- slurry
- forming mechanism
- baffle
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- 239000002002 slurry Substances 0.000 title claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 238000005192 partition Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Abstract
The utility model relates to a slurry defoaming device, which comprises a vacuum box, wherein an overflow baffle is arranged in the vacuum box, the overflow baffle divides the vacuum box into a feeding bin and an overflow bin which are adjacent left and right, and the side surface of the overflow baffle facing the overflow bin is provided with a film forming surface which is outwards stretched upwards and obliquely; a feeding pipeline is communicated and installed on the vacuum box above the feeding bin, and a film forming mechanism is installed below a discharge hole of the feeding pipeline; the film forming mechanism is provided with a film forming surface which is inclined downwards towards the feeding bin; the slurry flowing out of the feeding pipeline flows to the feeding bin after film forming and flowing through the film forming mechanism, overflowed slurry in the feeding bin forms secondary film forming and flowing through the film forming surface of the overflow partition plate, and bubbles in a film forming and flowing state are easy to expand until broken in a vacuum environment, so that bubbles in the slurry are effectively removed through the secondary film forming and flowing, the defoaming probability and the defoaming efficiency are improved, and the whole structure is compact and smart in connection.
Description
Technical Field
The utility model relates to the technical field of slurry defoaming devices, in particular to a slurry defoaming device.
Background
The slurry products are mostly defoamed by vacuum or chemical reagents, and when the chemical reagents are defoamed, the adopted chemical reagents have irritation and certain toxicity and can influence the subsequent process and the product quality; vacuum deaeration is generally used for deaeration of low-viscosity fluid, and has the defects of long deaeration time and low efficiency.
The vacuum defoaming method comprises the following steps: the liquid containing gas is filled into a vacuum box, the pressure in the liquid is reduced after vacuumizing, the volume of the contained bubbles is increased compared with that of the liquid under normal pressure, the buoyancy of the bubbles is increased, so that the bubbles float to the upper surface of the liquid easily, the bubbles are broken to enable the gas to diffuse into a space, and the liquid is defoamed; because the vacuum defoaming efficiency is low, a defoaming mechanism is usually added under the vacuum condition in the prior art, for example, a power mechanism for slowly stirring liquid is added to promote bubbles to be exposed out of the surface of the liquid after the volume of the bubbles is increased as much as possible, but the whole defoaming device has a complex structure.
In the prior patent with the publication number of CN214778024U, a liquid vacuum defoaming device is disclosed, wherein a combined form of vacuum and a sieve-shaped baffle plate is adopted to cut liquid so as to increase the defoaming probability and improve the defoaming efficiency; however, the device is suitable for defoaming liquid with the viscosity of 5-12 ten thousand cps (Brinell viscosity unit), and for slurry products with the viscosity of 100-5000cps, the device in the patent is not suitable for removing bubbles on low-viscosity liquid due to relatively lower viscosity and high fluidity; in addition, the vacuum degassing apparatus in the above prior art is complicated in overall structure layout.
Disclosure of utility model
Aiming at the defects in the prior art, the inventor provides a slurry defoaming device with reasonable structure, so that bubbles in slurry are effectively removed through two film forming flows, the defoaming probability and the defoaming efficiency are improved, and the slurry defoaming device is particularly suitable for defoaming slurry products with the viscosity in the range of 100-5000 cps.
The technical scheme adopted by the utility model is as follows:
The slurry defoaming device comprises a vacuum box, wherein an overflow baffle is arranged in the vacuum box, the overflow baffle divides the vacuum box into a feeding bin and an overflow bin which are adjacent, and the side surface of the overflow baffle facing the overflow bin is provided with a film forming surface which is outwards stretched upwards; a feeding pipeline is arranged above the vacuum box corresponding to the feeding bin in a communicating way, and a film forming mechanism is arranged below a discharging hole of the feeding pipeline; the film forming mechanism is provided with a film forming surface extending downward and inclined toward the feed bin.
As a further improvement of the above technical scheme:
The spray header is laterally arranged at the bottom end of the feeding pipeline, a baffle plate is arranged right opposite to the spray direction of the spray header, and the baffle plate is positioned above the film forming mechanism.
The baffle is obliquely arranged, and the bottom end of the baffle is positioned above the film forming surface of the film forming mechanism.
The baffle and the film forming surface of the film forming mechanism are opposite in inclination direction, an included angle is formed between the baffle and the film forming surface, and the spray header is positioned at the inner side of the included angle.
The film forming mechanism is in a conical, polygonal pyramid or inclined plate structure, and the surface of the film forming mechanism facing the feeding pipeline forms a film forming surface.
The film forming mechanism is of a trapezoid plate-shaped structure which is obliquely arranged and is provided with a film forming surface with a trapezoid shape with a narrow upper part and a wide lower part.
The top end of the overflow baffle plate and the bottom end of the film forming mechanism are provided with a spacing distance in the vertical direction, and the inclination direction of the film forming surface of the film forming mechanism is opposite to that of the overflow baffle plate.
A plurality of spines are arranged at the top end of the overflow baffle at intervals, and the single spines are obliquely upwards distributed towards one side of the feeding bin.
The feeding pipeline is installed on the top surface of the vacuum box in a penetrating mode, and the feeding pipeline is installed between the vacuum box and the feeding tank in a communicating mode.
And a venturi tube is arranged on the feeding pipeline in series.
The beneficial effects of the utility model are as follows:
the utility model has compact, simple and ingenious integral structure, slurry flowing out from the feeding pipeline flows to the feeding bin after film forming and flowing through the film forming mechanism, overflowed slurry in the feeding bin forms secondary film forming and flowing through the film forming surface of the overflow baffle, and in a vacuum environment, bubbles in a film forming and flowing state are easy to expand until broken, so that bubbles in the slurry are effectively removed through the secondary film forming and flowing, and the defoaming probability and the defoaming efficiency are improved;
the utility model also has the following advantages:
The top of the overflow baffle is provided with the spike, and in the overflow process, bubbles which are not broken are broken when touching the spike, so that the defoaming is effectively ensured; the direction of the spike is opposite to the flowing direction of the overflow, so that the probability of puncturing bubbles is further ensured and improved;
The baffle is arranged in the spraying direction of the spray header, so that smooth film formation can be ensured when slurry flows downwards to the film forming surface of the film forming mechanism;
The venturi tube is arranged in the feeding pipeline, the liquid forms strong mixing at the throat section of the venturi tube, the probability of forming large bubbles by collision of micro bubbles is improved, the pressure drop of the liquid is not changed greatly, the pressure of the liquid and the pressure in the vacuum box form large pressure difference, the gas removal rate is improved, and the device has the advantages of convenience in installation and low pressure loss;
The utility model carries out multistage treatment on the gas in the liquid by virtue of two-stage film forming and spike, thereby effectively improving and ensuring the removal rate and the defoaming efficiency of bubbles in the slurry.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partial enlarged view at a in fig. 1.
FIG. 3 is a schematic view of the installation of spikes on an overflow barrier of the present utility model.
FIG. 4 is a schematic view of a film forming mechanism according to the present utility model.
FIG. 5 is a schematic view of another embodiment of the film forming mechanism of the present utility model.
Wherein: 1. a feed tank; 2. a feed conduit; 3. a vacuum box; 4. an overflow baffle; 5. a film forming mechanism; 6. spike; 7. a spray header; 8. a baffle; 9. a venturi tube;
31. a feeding bin; 32. an overflow bin;
51. A film-forming surface.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1, the slurry defoaming device of the embodiment comprises a vacuum box 3, wherein an overflow baffle 4 is arranged in the vacuum box 3, the overflow baffle 4 divides the vacuum box 3 into a feeding bin 31 and an overflow bin 32 which are adjacent, and the side surface of the overflow baffle 4 facing the overflow bin 32 is provided with a film forming surface which is inclined upwards and outwards; a feeding pipeline 2 is arranged above the vacuum box 3 corresponding to the feeding bin 31 in a communicating way, and a film forming mechanism 5 is arranged below a discharge hole of the feeding pipeline 2; the film forming mechanism 5 is provided with a film forming surface 51 extending downward and inclined toward the feed hopper 31.
In this embodiment, the slurry flowing out from the feeding pipe 2 flows into the feeding bin 31 after film forming by the film forming mechanism 5, the overflow slurry in the feeding bin 31 forms a secondary film forming flow by the film forming surface of the overflow partition plate 4, and in the vacuum environment, the bubbles in the film forming flow state are easy to expand until break, so that the bubbles in the slurry are effectively removed by the two film forming flows.
In this embodiment, the side surface of the overflow partition plate 4 facing the overflow bin 32 is provided with an upwardly and outwardly inclined structure to form a film forming surface, so that the slurry overflowed from the feed bin 31 into the overflow bin 32 can smoothly flow down along the film forming surface, and thus film forming flow can be smoothly and reliably formed.
As shown in fig. 2, a spray header 7 is laterally installed at the bottom end of the feeding pipeline 2, a baffle plate 8 is arranged opposite to the spray direction of the spray header 7, and the baffle plate 8 is positioned above the film forming mechanism 5.
In this embodiment, the baffle plate 8 is disposed in the spraying direction of the spray header 7, so that smooth film formation is effectively ensured when the slurry flows down to the film forming surface 51 of the film forming mechanism 5.
The baffle plate 8 is obliquely arranged, and the bottom end of the baffle plate 8 is positioned above the film forming surface 51 of the film forming mechanism 5, so that the slurry flowing downwards from the baffle plate 8 can be effectively ensured to be formed on the film forming mechanism 5.
The inclined direction of the baffle plate 8 is opposite to that of the film forming surface 51 of the film forming mechanism 5, an included angle is formed between the baffle plate 8 and the film forming surface 51, and the spray header 7 is positioned at the inner side of the included angle, so that an overall compact and ingenious layout form is formed, and the slurry flowing out of the feeding pipeline 2 can smoothly form a film on the film forming mechanism 5.
In the present embodiment, the fitting structure of the barrier 8 and the film forming mechanism 5 may be set according to actual conditions; for example, the baffle plate 8 and the film forming mechanism 5 may be attached to the inner wall surface of the vacuum chamber 3, respectively, and the use requirement may be satisfied by merely forming a vertically opposed spatial position structure between the baffle plate 8 and the film forming mechanism 5.
Naturally, the baffle plate 8 and the film forming mechanism 5 may be fixed or rotatably mounted to each other, and one of them may be mounted to the inner wall surface of the vacuum chamber 3; if the baffle plate 8 and the film forming mechanism 5 are arranged to be a rotating structure with adjustable included angles, for example, by means of a hinge or other conventional structure, the included angles can be conveniently adjusted according to actual use requirements, and the relative locking is fixed after adjustment.
The film forming mechanism 5 has a conical, polygonal pyramid-like or inclined plate-like structure, and a film forming surface 51 is formed on the surface of the film forming mechanism 5 facing the feed pipe 2.
As shown in fig. 4, for one embodiment of the film forming mechanism 5, the film forming mechanism 5 is provided in an inclined plate-like structure, the upper end of which is close to the bottom end of the baffle plate 8, the lower end of which is directed toward the feed bin 31, and the slurry flows onto the inclined plate-like structure via the baffle plate 8 to form a film forming flow state and flows down into the feed bin 31.
As shown in fig. 5, in another embodiment of the film forming mechanism 5, the film forming mechanism 5 is provided in a conical structure, a film forming surface 51 is formed from an upper portion of the conical surface, the slurry is formed in a film forming flow state on the film forming surface 51, and the slurry continues to flow downward along the film forming surface 51 until it falls into the feed bin 31.
In this embodiment, since the conical surface of the conical structure is inclined downward, in the actual installation process, the rotation axis of the conical structure may be arranged vertically or obliquely according to the actual requirement, so that the film forming surface 51 of the conical structure may form a film forming flow in the process of guiding the slurry to the feeding bin 31.
The film forming mechanism 5 is provided in a polygonal pyramid-like structure, and like the conical structure, can form a film forming flow in the process of guiding the slurry to the feed bin 31.
In the embodiment shown in fig. 4, the film forming mechanism 5 is a trapezoid plate-like structure arranged obliquely, having a film forming surface 51 of a trapezoid with a narrow upper part and a wide lower part.
In this embodiment, the bottom end of the feeding pipe 2 outputs slurry outwards through the shower head 7, and the slurry flows to the film forming mechanism 5 through the baffle 8, for example, the slurry is relatively concentrated, and is located on the film forming mechanism 5 in a limited range below the shower head 7, and during the process that the slurry flows along the film forming surface 51, the slurry is gradually spread laterally, so that the film forming mechanism 5 can be set to a trapezoid plate structure with a narrow top and a wide bottom, and is matched with the film forming flowing form of the slurry on the surface of the film forming mechanism 5.
The top end of the overflow baffle 4 and the bottom end of the film forming mechanism 5 are provided with a spacing distance in the vertical direction, so that the bottom end of the film forming mechanism 5 is not contacted with the overflow surface; the film forming mechanism 5 has a film forming surface 51 inclined in a direction opposite to that of the overflow barrier 4 so that the two film forming flow conditions are independent of each other.
As shown in fig. 3, a plurality of spines 6 are arranged at intervals at the top end of the overflow baffle plate 4, and the individual spines 6 are obliquely upwards arranged towards one side of the feeding bin 31.
The top of the overflow baffle plate 4 is provided with the spike 6, and in the overflow process, bubbles which are not broken are broken when touching the spike 6, so that the defoaming is effectively ensured; the direction of the spike 6 is opposite to the flowing direction of the overflow, so that the probability of puncturing bubbles is further ensured and improved.
The feeding pipeline 2 is installed on the top surface of the vacuum box 3 in a penetrating mode, the feeding pipeline 2 is installed between the vacuum box 3 and the feeding tank 1 in a communicating mode, and slurry in the feeding tank 1 flows into the vacuum box 3 through the feeding pipeline 2.
A venturi tube 9 is installed on the feeding pipe 2 in series.
The venturi tube 9 is arranged in the feeding pipeline 2, the liquid forms strong mixing at the throat section of the venturi tube 9, the probability of forming large bubbles by collision of micro bubbles is improved, the pressure drop of the liquid is not changed greatly, the liquid pressure and the pressure in the vacuum box form large pressure difference, the gas removal rate is improved, and the device also has the advantages of convenience in installation and low pressure loss.
The vacuum box 3 in this embodiment adopts the existing commercial standard vacuum product, and can adjust the vacuum degree according to the actual use requirement while realizing the vacuum of the vacuum box 3.
In the present embodiment, the overflow barrier 4 may be provided in an inclined plate-like structure, or only the side surface of the overflow barrier 4 facing the overflow chamber 32 may be provided in an inclined structure that facilitates film formation flow.
During actual use, slurry in the feed tank 1 flows into the vacuum box 3 via the feed pipe 2; the spray header 7 extending into the bottom end of the feeding pipeline 2 in the vacuum box 3 works to output slurry, the slurry flows downwards from the upper part of the film forming mechanism 5, a film forming flowing state is smoothly formed in the flowing process, and the slurry finally flows downwards from the bottom end of the film forming mechanism 5 to the feeding bin 31; the slurry in the feed bin 31 overflows beyond the overflow partition plate 4, forms a film forming flow state again along the film forming surface inclined by the overflow partition plate 4, and flows into the overflow bin 32; in the vacuum environment of the vacuum box 3, bubbles in the slurry expand until being broken in a film forming flowing state, and when the slurry passes over the overflow baffle plate 4, the bubbles in the slurry touch the spike 6 and are broken, so that the gas in the liquid is subjected to multistage treatment by means of two-stage film forming and the spike 6, and the removal rate and the defoaming efficiency of the bubbles in the slurry are effectively improved and ensured.
The utility model has simple and ingenious structure, effectively removes bubbles in the slurry through twice film forming flow, improves the defoaming probability and the defoaming efficiency, and is particularly suitable for defoaming slurry products with the viscosity in the range of 100-5000 cps.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (10)
1. The utility model provides a thick liquids deaeration device, includes vacuum box (3), its characterized in that: an overflow baffle (4) is arranged in the vacuum box (3), the overflow baffle (4) divides the vacuum box (3) into a feeding bin (31) and an overflow bin (32) which are adjacent, and the side surface of the overflow baffle (4) facing the overflow bin (32) is provided with a film forming surface which is upwardly and outwardly inclined; a feeding pipeline (2) is arranged above the vacuum box (3) corresponding to the feeding bin (31) in a communicating way, and a film forming mechanism (5) is arranged below a discharging hole of the feeding pipeline (2); the film forming mechanism (5) is provided with a film forming surface (51) extending downward and inclined toward the feed bin (31).
2. A slurry defoaming apparatus according to claim 1, wherein: the spray header (7) is laterally arranged at the bottom end of the feeding pipeline (2), the baffle (8) is arranged opposite to the spray direction of the spray header (7), and the baffle (8) is positioned above the film forming mechanism (5).
3. A slurry defoaming apparatus according to claim 2, wherein: the baffle (8) is obliquely arranged, and the bottom end of the baffle (8) is positioned above the film forming surface (51) of the film forming mechanism (5).
4. A slurry defoaming apparatus according to claim 3, wherein: the inclined directions of the baffle plate (8) and the film forming surface (51) of the film forming mechanism (5) are opposite, an included angle is formed between the baffle plate (8) and the film forming surface (51), and the spray header (7) is positioned at the inner side of the included angle.
5. A slurry defoaming apparatus according to claim 1, wherein: the film forming mechanism (5) is in a conical, polygonal pyramid or inclined plate structure, and the surface of the film forming mechanism (5) facing the feeding pipeline (2) forms a film forming surface (51).
6. A slurry defoaming apparatus according to claim 1, wherein: the film forming mechanism (5) is of a trapezoid plate-shaped structure which is obliquely arranged, and is provided with a film forming surface (51) with a trapezoid shape with a narrow upper part and a wide lower part.
7. A slurry defoaming apparatus according to claim 1, wherein: the top end of the overflow partition plate (4) and the bottom end of the film forming mechanism (5) are provided with a spacing distance in the vertical direction, and the inclination direction of the film forming surface (51) of the film forming mechanism (5) is opposite to the inclination direction of the overflow partition plate (4).
8. A slurry defoaming apparatus according to claim 1, wherein: a plurality of spines (6) are arranged at the top end of the overflow baffle plate (4) at intervals, and the individual spines (6) are obliquely upwards distributed towards one side of the feeding bin (31).
9. A slurry defoaming apparatus according to claim 1, wherein: the feeding pipeline (2) is installed on the top surface of the vacuum box (3) in a penetrating mode, and the feeding pipeline (2) is installed between the vacuum box (3) and the feeding tank (1) in a communicating mode.
10. A slurry defoaming apparatus according to claim 1, wherein: the feeding pipeline (2) is provided with a venturi tube (9) in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322705520.XU CN220834255U (en) | 2023-10-10 | 2023-10-10 | Slurry defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322705520.XU CN220834255U (en) | 2023-10-10 | 2023-10-10 | Slurry defoaming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220834255U true CN220834255U (en) | 2024-04-26 |
Family
ID=90783779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322705520.XU Active CN220834255U (en) | 2023-10-10 | 2023-10-10 | Slurry defoaming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220834255U (en) |
-
2023
- 2023-10-10 CN CN202322705520.XU patent/CN220834255U/en active Active
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