CN219963956U - Cemented carbide spray drying slurry pressure stabilizing mechanism - Google Patents
Cemented carbide spray drying slurry pressure stabilizing mechanism Download PDFInfo
- Publication number
- CN219963956U CN219963956U CN202320838412.7U CN202320838412U CN219963956U CN 219963956 U CN219963956 U CN 219963956U CN 202320838412 U CN202320838412 U CN 202320838412U CN 219963956 U CN219963956 U CN 219963956U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure stabilizing
- tank
- slurry
- inert gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 60
- 239000002002 slurry Substances 0.000 title claims abstract description 34
- 238000001694 spray drying Methods 0.000 title claims abstract description 16
- 239000011261 inert gas Substances 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000000889 atomisation Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 230000010349 pulsation Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model provides a hard alloy spray drying slurry pressure stabilizing mechanism, which comprises a hydraulic diaphragm pump and a back pressure valve which are sequentially arranged on a discharge pipeline of a stirring tank with slurry; the discharging pipeline connecting the diaphragm pump and the back pressure valve is also connected with a first gas supply branch which is filled with inert gas, and the gas inlet end of the first gas supply branch is connected to a first surge tank; the discharging pipeline of the back pressure valve is also connected with a second gas supply branch which is used for introducing inert gas, and the gas inlet end of the second gas supply branch is connected with a second pressure stabilizing tank; the pressure spray nozzle is arranged on the end port of the discharging pipeline far away from the hydraulic diaphragm pump and the back pressure valve; the drying tower cover is arranged at the outer side of the pressure spray nozzle to carry out the atomization process. The pressure stabilizing tank I and the pressure stabilizing tank II are provided with the same pressure as that sprayed by the pressure spray nozzle, so that pulsation is reduced, stable spraying of the pressure spray nozzle in a drying tower is realized, and the effects of good consistency of particle size and loose ratio of powder after spray drying can be brought.
Description
Technical Field
The utility model relates to the field of hard alloy spray drying, in particular to the technical field of slurry pressurization, and specifically relates to a hard alloy spray drying slurry pressure stabilizing mechanism.
Background
The slurry pressurization in the hard alloy spray drying process basically adopts a hydraulic diaphragm pump, the pump outlet pressure is about 2.0MPa, and the pump outlet pressure is provided with larger pulses, so that the pressure is unstable in the feeding process, and a pressure stabilizing air bag is required to be equipped for stabilizing the output pressure.
The existing pressure stabilizing air bag is generally only one, the volume is about 7L, and the pressure stabilizing air bag is generally arranged at the outlet of a feeding pump, however, the pressure of slurry can be always fluctuated after the external structure is used, and once the pressure is unsuitable, a large amount of slurry can be fed into the pressure stabilizing air bag, so that unstable spraying is caused, slurry loss is caused, and even a series of problems such as complicated cleaning are caused.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a cemented carbide spray-dried slurry pressure stabilizing mechanism for solving the difficulties of the prior art.
To achieve the above and other related objects, the present utility model provides a cemented carbide spray-dried slurry pressure stabilizing mechanism comprising:
the hydraulic diaphragm pump 4 and the back pressure valve 5 are sequentially arranged on the discharge pipeline of the stirring tank 3 with slurry, and are positioned between the stirring tank 3 and the discharge end of the discharge pipeline;
the discharge pipeline connecting the diaphragm pump 4 and the back pressure valve 5 is also connected with a first gas supply branch 8 for introducing inert gas, and the gas inlet end of the first gas supply branch 8 is connected to the first surge tank 1;
the second pressure stabilizing tank 2, a second gas supply branch 9 for introducing inert gas is further connected to a discharge pipeline of the back pressure valve 5, which is far away from the hydraulic diaphragm pump 4, and the gas inlet end of the second gas supply branch 9 is connected to the second pressure stabilizing tank 2;
a pressure spray nozzle 6, wherein the pressure spray nozzle 6 is arranged on the end port of the discharging pipeline far away from the hydraulic diaphragm pump 4 and the back pressure valve 5;
and a drying tower 7, wherein the drying tower 7 is covered outside the pressure spray nozzle 6 for atomization.
According to the preferred scheme, inert gas input ends of the first surge tank 1 and the second surge tank 2 are connected with an inert gas source through an external pipeline and an air valve, and inert gas is input from the bottoms of the first surge tank 1 and the second surge tank 2 for inflation.
According to the preferred scheme, the air pressure formed by filling inert gas into the first surge tank 1 and the second surge tank 2 is the same as the ejection pressure of the pressure spray nozzle 6.
According to the preferred scheme, the first surge tank 1 and the second surge tank 2 are respectively provided with pressure gauges.
According to a preferred embodiment, nitrogen is used as inert gas.
According to the preferred scheme, stop valves are arranged on gas paths of inert gas input to the first surge tank 1 and the second surge tank 2.
According to a preferred solution, the two ends of the hydraulic diaphragm pump 4 are also respectively provided with a one-way valve 10 on the pipeline.
According to a preferred solution, the two ends of the hydraulic diaphragm pump 4 are mounted on the discharge line by means of flanges.
According to a preferred embodiment, the bottom of the pressure spray nozzle 6 is not lower than the hopper-shaped material guiding end of the drying tower 7.
According to the utility model, the external air supply branch is connected with the first pressure stabilizing tank and the second pressure stabilizing tank on the discharge pipeline, and the external air supply branch is used for installing the same pressure as the spraying of the pressure spraying nozzle 6, so that pulsation is reduced, the fluctuation range of the slurry pressure after the first-stage pressure stabilizing tank stabilizes the pressure is +/-0.05 MPa, the fluctuation range of the slurry pressure after the second-stage pressure stabilizing tank stabilizes the pressure can be reduced to +/-0.001 MPa, and therefore stable spraying of the pressure spraying nozzle in a drying tower is realized, and the effects of good particle size and loose ratio consistency of the powder after spray drying can be brought due to stable atomization pressure.
Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
description of the reference numerals
1. A first pressure stabilizing tank; 2. a second pressure stabilizing tank; 3. a stirring tank; 4. a hydraulic diaphragm pump; 5. a back pressure valve; 6. a pressure spray nozzle; 7. a drying tower; 8. a first air supply branch; 9. a second air supply branch; 10. a one-way valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Possible embodiments within the scope of the utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The utility model provides a hard alloy spray drying slurry pressure stabilizing mechanism which is used in a hard alloy spray drying process, the utility model does not limit the type of the dried hard alloy, but the structure of the slurry pressure stabilizing mechanism is particularly suitable for the spray drying of the hard alloy.
In general, the cemented carbide spray drying slurry pressure stabilizing mechanism mainly comprises a first pressure stabilizing tank 1, a second pressure stabilizing tank 2, a hydraulic diaphragm pump 4, a back pressure valve 5, a pressure spray nozzle 6 and a drying tower 7. Among them, reference can be made to fig. 1, which shows the arrangement relationship of a surge tank No. 1, a surge tank No. 2, a hydraulic diaphragm pump 4, and a back pressure valve 5, a pressure spray nozzle 6, a drying tower 7.
In order to achieve the aim that the spray pressure can be reduced to +/-0.001 MPa from the original fluctuation range +/-0.05 MPa, the problem that an existing pressure stabilizing air bag in the background technology is generally only one, the volume is about 7L, the pressure stabilizing air bag is generally arranged at the position of a feed pump outlet, however, the slurry pressure can be always fluctuated after the external structure is used, a large amount of slurry can be introduced into the pressure stabilizing bag once the pressure is unsuitable, so that spraying is unstable, slurry loss is caused, even a series of problems such as complicated cleaning are caused, and the like are solved.
Specifically, as shown in fig. 1, the first surge tank 1 is located on the air inlet end of the first air supply branch 8, the first air supply branch 8 is connected to the discharge pipeline of the diaphragm pump 4 and the back pressure valve 5, the second surge tank 2 is located on the air inlet end of the second air supply branch 9, the second air supply branch 9 is connected to the discharge pipeline of the back pressure valve 5 facing away from the hydraulic diaphragm pump 4, inert gas with the same pressure as that sprayed by the pressure spray nozzle 6 is filled in the first surge tank 1 and the second surge tank 2 during use, pressure gauges are respectively installed on the first surge tank 1 and the second surge tank 2, and the pressure in the pipeline is effectively filled by using the inert gas to input and supplement the feed pipeline, so that the occurrence of fluctuation condition is avoided.
In the embodiment, nitrogen is preferably used as inert gas, so that the safety is high, the method can adapt to slurry transportation of different products, and adverse reactions are effectively reduced; in addition, in order to ensure the stable input of the inert gas in the first pressure stabilizing tank 1 and the second pressure stabilizing tank 2, the unstable air pressure caused by unreasonable structural arrangement is avoided, and the structure of the pressure stabilizing tank is adapted, so that the inert gas input ends of the first pressure stabilizing tank 1 and the second pressure stabilizing tank 2 are connected with an inert gas source through an external pipeline and an air valve, and the inert gas is input from the bottoms of the first pressure stabilizing tank 1 and the second pressure stabilizing tank 2 for inflation; and the stop valves are arranged on the gas paths of the inert gas input to the first pressure stabilizing tank 1 and the second pressure stabilizing tank 2, once the pressure gauge vertically exceeds the pressure value of the spray nozzle 6, the effective stop is carried out, and the visual effect is achieved.
As described above, in the present structure, the slurry pressure in the pipeline often fluctuates, and a large amount of slurry will enter the pressure stabilizing bag, so in this embodiment, the back pressure valve 5 can effectively prevent the liquid from flowing back or siphoning under the unstable condition of the pressure, so as to avoid the reverse suction into the first pressure stabilizing tank 1 and the second pressure stabilizing tank 2, and control the flow direction of the slurry, the slurry and the inert gas, and further ensure the stability of the atomizing pressure of the nozzle.
On the basis, two ends of the hydraulic diaphragm pump 4 are arranged on a discharging pipeline through flanges, two ends of the inner side of the flanges are respectively provided with one-way valves 10 on the pipeline, and the situation of liquid gas backflow can be avoided.
As shown in fig. 1, the bottom of the pressure spray nozzle 6 is not lower than the bucket-shaped material guiding end of the drying tower 7, so that powder after spray drying can be effectively collected, and the efficiency is improved.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. A cemented carbide spray-dried slurry pressure stabilizing mechanism, comprising:
the hydraulic diaphragm pump (4) and the back pressure valve (5) are sequentially arranged on a discharge pipeline of the stirring tank (3) with slurry, and are positioned between the stirring tank (3) and the discharge tail end of the discharge pipeline;
the discharge pipeline connecting the diaphragm pump (4) and the back pressure valve (5) is also connected with a first gas supply branch (8) for introducing inert gas, and the gas inlet end of the first gas supply branch (8) is connected to the first pressure stabilizing tank (1);
the second pressure stabilizing tank (2), the back pressure valve (5) is further connected with a second gas supply branch (9) for introducing inert gas on a discharge pipeline far away from the hydraulic diaphragm pump (4), and the gas inlet end of the second gas supply branch (9) is connected to the second pressure stabilizing tank (2);
the pressure spray nozzle (6) is arranged on the end port of the discharging pipeline, which is far away from the hydraulic diaphragm pump (4) and the back pressure valve (5);
and the drying tower (7) is covered on the outer side of the pressure spray nozzle (6) to perform an atomization process.
2. The hard alloy spray drying slurry pressure stabilizing mechanism according to claim 1, wherein inert gas input ends of the first pressure stabilizing tank (1) and the second pressure stabilizing tank (2) are connected with an inert gas source through an external pipeline and a gas valve, and inert gas is input from bottoms of the first pressure stabilizing tank (1) and the second pressure stabilizing tank (2) for inflation.
3. The pressure stabilizing mechanism for the hard alloy spray drying slurry according to claim 2, wherein the air pressure formed by filling inert gas into the first pressure stabilizing tank (1) and the second pressure stabilizing tank (2) is the same as the spraying pressure of the pressure spraying nozzle (6).
4. A cemented carbide spray-dried slurry pressure stabilizing mechanism according to claim 3, wherein pressure gauges are mounted on the first pressure stabilizing tank (1) and the second pressure stabilizing tank (2) respectively.
5. The cemented carbide spray-dried slurry pressure stabilizing mechanism according to claim 4, wherein the inert gas is nitrogen.
6. The cemented carbide spray-dried slurry pressure stabilizing mechanism according to claim 5, wherein the two ends of the hydraulic diaphragm pump (4) are further provided with one-way valves (10) on the pipelines, respectively.
7. The cemented carbide spray-drying slurry pressure stabilizing mechanism according to claim 6, characterized in that the bottom of the pressure spray nozzle (6) is not lower than the bucket-shaped material guiding end of the drying tower (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320838412.7U CN219963956U (en) | 2023-04-14 | 2023-04-14 | Cemented carbide spray drying slurry pressure stabilizing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320838412.7U CN219963956U (en) | 2023-04-14 | 2023-04-14 | Cemented carbide spray drying slurry pressure stabilizing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219963956U true CN219963956U (en) | 2023-11-07 |
Family
ID=88581918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320838412.7U Active CN219963956U (en) | 2023-04-14 | 2023-04-14 | Cemented carbide spray drying slurry pressure stabilizing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219963956U (en) |
-
2023
- 2023-04-14 CN CN202320838412.7U patent/CN219963956U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201132143Y (en) | Pressurizing coating spraying machine | |
| CN105771115B (en) | The helicopter of addition water-based extinguishing agent goes out mountain fire method | |
| CN219963956U (en) | Cemented carbide spray drying slurry pressure stabilizing mechanism | |
| CN219971161U (en) | Positive pressure dense phase pneumatic ash conveying system | |
| CN110448828A (en) | Positive-pressure type three-phase froth generating device and methods and applications | |
| CN102491093B (en) | Positive pressure pneumatic transmission system and method | |
| CN216191994U (en) | Fertile production system of high-efficient ecological urea | |
| CN113845290B (en) | Glass batch granulation binder adding device | |
| CN204841666U (en) | Modified silicon oil reation kettle | |
| CN213118482U (en) | PTA slurry conveying system | |
| CN102146813B (en) | Waste steam heating, pressurizing and recycling system | |
| CN208516940U (en) | Feeding system | |
| CN202360837U (en) | Integrated pressure-regulating reversing sectional control valve | |
| CN203972188U (en) | Flush coater air compression plant | |
| CN218507555U (en) | Stable liquid conveying system | |
| CN102000643A (en) | Flush coater | |
| CN208352255U (en) | A kind of rare gas recyclable device | |
| CN211998784U (en) | Acetaldehyde storage tank and tank wagon loading and unloading connection structure | |
| CN205868197U (en) | Inlet pipe before meticulous composite pump of metal treatment liquid with face and connect bypass | |
| CN110665438A (en) | Feeding conveying assembly and feeding system for synthesizing lithium ion battery anode precursor | |
| CN210950786U (en) | Supercharging device for tank car | |
| CN205471641U (en) | Pneumatic ash conveying device | |
| CN205108857U (en) | Powder pumping system who forms with spiral flow constant pressure pump and fire engine that has this system | |
| CN209973712U (en) | Material delivery pump and material delivery system | |
| CN211706723U (en) | Feeding conveying assembly and feeding system for synthesizing lithium ion battery anode precursor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |