CN211769051U - Material conveying device - Google Patents
Material conveying device Download PDFInfo
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- CN211769051U CN211769051U CN202020219187.5U CN202020219187U CN211769051U CN 211769051 U CN211769051 U CN 211769051U CN 202020219187 U CN202020219187 U CN 202020219187U CN 211769051 U CN211769051 U CN 211769051U
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- auger
- feeding auger
- interlayer
- powder
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Abstract
The utility model relates to a material conveying device, including feeding auger, feeding powder fill and outer blender, the discharge end of feeding powder fill is connected through the tetrafluoro pipe with the feed end of feeding auger, the discharge end of feeding auger is connected through the tetrafluoro pipe with the fluorite powder feed end of outer blender, the auger shaft of feeding powder fill is the step shaft, and the spiral leaf interval that sets up on the auger shaft is crescent from the feed end of feeding auger to the discharge end of feeding auger, and the great one end of auger shaft diameter is towards the feed end of feeding auger; the outer wall of the feeding auger is provided with an interlayer structure, an interlayer liquid inlet and an interlayer liquid outlet are arranged on the interlayer structure, and the interlayer liquid inlet is externally connected with a heat-conducting oil source. This material conveyor can effectively avoid the fluorite powder to drop into in the short time excessively and cause the acid powder ratio imbalance in the outer ware that mixes, ensures the reaction temperature of hydrofluoric acid, effectively reduces the fault rate of device.
Description
Technical Field
The utility model relates to a hydrofluoric acid production field especially relates to a material conveyor.
Background
In the production process of hydrofluoric acid, the water content of the used fluorite powder is less than 0.1%, the fluorite powder has strong fluidity, and in the process of material loading, the fluorite powder is easy to directly flow in the conveying auger, and directly flows to the external mixer in a short time, so that the situation of misadjustment of the acid powder ratio occurs when the fluorite powder is mixed in the external mixer, and the production stability of the hydrofluoric acid is influenced;
in addition, in order to ensure the reaction temperature in the hydrofluoric acid production process, the temperature of the fluorite powder in conveying is higher than 120 ℃, but because the temperature of the fluorite powder is too high, the connection structure of the feeding and discharging pipe of the feeding auger and the outside is easy to be scalded by the fluorite powder to break powder leakage in the long-term production process, and the heat loss of the fluorite powder in the conveying process is also not beneficial to the production of the hydrofluoric acid.
SUMMERY OF THE UTILITY MODEL
Therefore, a material conveying device is needed to solve the above problems in the process of conveying fluorite powder.
In order to achieve the above object, the inventor provides a material conveying device, comprising a feeding auger, a feeding powder hopper and an outer mixer, wherein the discharge end of the feeding powder hopper is connected with the feed end of the feeding auger through a tetrafluoride pipe, the discharge end of the feeding auger is connected with the fluorite powder feed end of the outer mixer through a tetrafluoride pipe,
the auger shaft of the feeding powder hopper is a stepped shaft, the distance between rotary vanes arranged on the auger shaft is gradually increased from the feeding end of the feeding auger to the discharging end of the feeding auger, and the larger end of the auger shaft faces the feeding end of the feeding auger;
the outer wall of the feeding auger is provided with an interlayer structure, an interlayer liquid inlet and an interlayer liquid outlet are arranged on the interlayer structure, and the interlayer liquid inlet is externally connected with a heat-conducting oil source.
Furthermore, a first valve is arranged at the inlet of the interlayer, and a second valve is arranged at the outlet of the interlayer.
Further, the tetrafluoro pipe is a tetrafluoro corrugated connecting hose.
Furthermore, the length of the sandwich structure is matched with the length of the shell of the feeding auger.
Further, the interlayer liquid inlet and the interlayer liquid outlet are both arranged above the interlayer.
Furthermore, the feed end of feeding auger and the discharge end of feeding auger are respectively arranged at two ends of the shell of feeding auger.
Further, a drain outlet is arranged below the sandwich structure, and a third valve is arranged at the drain outlet.
Different from the prior art, the technical scheme has the following advantages: utilize the spiral leaf interval that shortens front end feeding auger to control the flow velocity of fluorite powder, cause the acid powder ratio imbalance in the outer ware that mixes of excessive input in avoiding the fluorite powder short time, utilize sandwich structure to keep warm the fluorite powder in the feeding auger, ensure the reaction temperature of hydrofluoric acid, the feeding auger passes through the tetrafluoro pipe and is connected with feeding powder fill and outer ware that mixes respectively, effectively reduces the fault rate of device.
Drawings
Fig. 1 is a schematic structural diagram of a material conveying device according to this embodiment.
Description of reference numerals:
1. feeding the auger;
2. a feeding powder hopper;
21. a packing auger shaft;
22. rotating leaves;
23. a sandwich structure;
24. a first valve;
25. a second valve;
26. third valve
3. An external mixer;
4. the polytetrafluoroethylene corrugated connecting hose.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Please refer to fig. 1, the utility model provides a material conveying device, including feeding auger 1, feeding powder fill 2 and outer blender 3, feeding powder fill is the infundibulate structure, outer blender also is the auger structure, outer blender has two feed ends, a feed end is used for being connected with the discharge end of feeding auger for carry the fluorite powder in the outer blender, another feed end is used for carrying the acidizing fluid in outer blender, acidizing fluid mixes with the fluorite powder in outer blender, and carry in the next process through its auger rotation axis.
The discharge end of feeding powder fill is connected through the tetrafluoride pipe with the feed end of feeding auger, the discharge end of feeding auger is connected through the tetrafluoride pipe with the fluorite powder feed end of outer blender, and the feeding powder fill carries the fluorite powder in to the feeding auger through the tetrafluoride pipe, and the feeding auger during operation, when the fluorite powder transports to the discharge end of feeding auger, the fluorite powder flows into outer blender through the tetrafluoride pipe. The tetrafluoro pipe has high temperature resistance, and when the fluorite powder flows in the tetrafluoro pipe, the fluorite powder can not destroy the tetrafluoro pipe, and the maintenance rate of the material conveying device is reduced. And a tetrafluoro sealing belt is arranged between the tetrafluoro pipe and the feeding powder hopper, between the feeding auger feeding end and between the feeding auger discharging end and between the tetrafluoro pipe and the fluorite powder feeding end of the outer mixer to realize sealing.
The auger axle of feeding powder fill is the step shaft, the 22 intervals of spiral leaf that set up on the auger axle 21 are by the feed end of feeding auger to the discharge end grow gradually of feeding auger, the great one end of auger axle diameter is towards the feed end of feeding auger, the less one end of auger axle diameter is towards the discharge end of feeding auger, fluorite powder gets into the feeding auger back from the feeding powder fill, because the clearance between the spiral leaf that is close to feeding auger feed end is less, the flowing friction power of fluorite powder is great, the mobility is low, can effectively avoid the fluorite powder to lean on the mobile outflow feeding auger of self.
The feeding auger outer wall is provided with sandwich structure 23, and sandwich structure is that the feeding auger outer wall is provided with hollow intermediate layer, is provided with intermediate layer inlet and intermediate layer liquid outlet on the sandwich structure, and the external heat conduction oil source of intermediate layer inlet, heat-conducting oil get into the intermediate layer from the intermediate layer inlet, flow from the intermediate layer liquid outlet again, after being full of the heat-conducting oil in the sandwich structure, can play good heat preservation effect to the fluorite powder in the feeding auger.
In some embodiments, a first valve 24 is arranged at the inlet of the interlayer, a second valve 25 is arranged at the outlet of the interlayer, when the material conveying device stops working, the first valve can be closed to stop conveying the heat conducting oil into the interlayer of the feeding auger, and the second valve is closed to prevent the heat conducting oil in the interlayer from leaking from the outlet of the interlayer.
In some embodiments, the tetrafluoro pipe is a tetrafluoro corrugated connecting hose 4, which has the beneficial effects that the positioning requirement on the material conveying device is low, and the field installation and adjustment are convenient.
In some embodiments, the length of the sandwich structure is matched with the length of the shell of the feeding auger, and the heat insulation effect in the feeding auger is better.
In some embodiments, the interlayer liquid inlet and the interlayer liquid outlet are both arranged above the interlayer, and the heat insulation device has the beneficial effects that the interlayer of the feeding auger can be filled with heat conduction oil, and the heat insulation effect is better.
In some embodiments, the feed end of the feeding auger and the discharge end of the feeding auger are respectively arranged at two end parts of the shell of the feeding auger, so that the stroke length of the fluorite powder is increased, and the risk that the fluorite powder flows into the outer mixer by the self-fluidity is further reduced.
In some embodiments, a drain is provided below the sandwich structure, and a third valve 26 is provided at the drain. After long-term use, the stains in the sandwich structure can be discharged and cleaned through the drain outlet.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (7)
1. A material conveying device is characterized in that: comprises a feeding auger, a feeding powder hopper and an outer mixer, wherein the discharge end of the feeding powder hopper is connected with the feed end of the feeding auger through a tetrafluoride pipe, the discharge end of the feeding auger is connected with the fluorite powder feed end of the outer mixer through a tetrafluoride pipe,
the auger shaft of the feeding powder hopper is a stepped shaft, the distance between rotary vanes arranged on the auger shaft is gradually increased from the feeding end of the feeding auger to the discharging end of the feeding auger, and the larger end of the auger shaft faces the feeding end of the feeding auger;
the outer wall of the feeding auger is provided with an interlayer structure, an interlayer liquid inlet and an interlayer liquid outlet are arranged on the interlayer structure, and the interlayer liquid inlet is externally connected with a heat-conducting oil source.
2. The material transfer device of claim 1, wherein: the interlayer liquid inlet is provided with a first valve, and the interlayer liquid outlet is provided with a second valve.
3. The material transfer device of claim 1, wherein: the tetrafluoride pipe is a polytetrafluoroethylene corrugated connecting hose.
4. The material transfer device of claim 1, wherein: the length of the sandwich structure is matched with the length of the shell of the feeding auger.
5. The material transfer device of claim 1, wherein: the interlayer liquid inlet and the interlayer liquid outlet are both arranged above the interlayer.
6. The material transfer device of claim 1, wherein: the feed end of feeding auger and the discharge end of feeding auger set up respectively in the both ends of feeding auger shell.
7. The material transfer device of claim 1, wherein: a drain outlet is arranged below the sandwich structure, and a third valve is arranged at the drain outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020219187.5U CN211769051U (en) | 2020-02-27 | 2020-02-27 | Material conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020219187.5U CN211769051U (en) | 2020-02-27 | 2020-02-27 | Material conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211769051U true CN211769051U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020219187.5U Active CN211769051U (en) | 2020-02-27 | 2020-02-27 | Material conveying device |
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| CN (1) | CN211769051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340702A (en) * | 2020-11-06 | 2021-02-09 | 张家港虹森重工有限公司 | Anti-blocking gas guide box in front of hydrogen fluoride reaction furnace and using method thereof |
-
2020
- 2020-02-27 CN CN202020219187.5U patent/CN211769051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340702A (en) * | 2020-11-06 | 2021-02-09 | 张家港虹森重工有限公司 | Anti-blocking gas guide box in front of hydrogen fluoride reaction furnace and using method thereof |
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