CN220624912U - Novel feeding air locking device based on lithium ore preheating system - Google Patents
Novel feeding air locking device based on lithium ore preheating system Download PDFInfo
- Publication number
- CN220624912U CN220624912U CN202322197128.9U CN202322197128U CN220624912U CN 220624912 U CN220624912 U CN 220624912U CN 202322197128 U CN202322197128 U CN 202322197128U CN 220624912 U CN220624912 U CN 220624912U
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- China
- Prior art keywords
- buffer bin
- screw conveyor
- level gauge
- shell
- lithium ore
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 5
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052629 lepidolite Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052642 spodumene Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000005465 channeling Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Furnace Charging Or Discharging (AREA)
Abstract
The utility model discloses a novel feeding air locking device based on a lithium ore preheating system, which comprises a belt conveyor, a buffer bin, a high level gauge, a low level gauge, a screw conveyor and a preheating kiln, wherein the buffer bin is arranged at a feed inlet of the screw conveyor, the buffer bin is connected with the belt conveyor, the high level gauge is arranged at the upper part of the buffer bin, the low level gauge is arranged at the lower part of the buffer bin, a discharge outlet of the screw conveyor is arranged at a feed end of the preheating kiln, and a blocking door is arranged at a discharge outlet of the screw conveyor. The utility model solves the problem of air locking in the discharging process of the feeding end of the existing preheating system.
Description
Technical Field
The utility model relates to the field of lithium ore roasting, in particular to a wind locking device at a feeding end of a preheating system.
Background
In order to reduce the heat consumption of a roasting kiln, a lepidolite/spodumene roasting production line generally preheats materials through a preheating kiln to reduce the moisture in the raw materials, improve the temperature of the materials entering the roasting kiln and reduce the energy consumption of the roasting kiln.
The particle size is generally less than 3mm, the water content is generally 10% -18% depending on the mass characteristics of the lepidolite/spodumene, and the product is abrasive to conveying equipment. In order to realize uniform feeding to the preheating kiln and air locking, the traditional process method is to install an impeller feeder on a feeding chute, but aiming at the material characteristics of lepidolite/spodumene, the abrasion of the material to a shell is large, and the material is easy to adhere in a division, so that blanking is unsmooth. As the abrasion of the shell by the materials is increased, the gap between the rotating wheel and the shell is increased, and the air locking effect is deteriorated.
Disclosure of Invention
The utility model aims to: the utility model provides a novel feeding air locking device based on a lithium ore preheating system, which solves the air locking problem in the unloading process.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a novel feeding air locking device based on lithium ore preheating system, includes belt feeder, surge bin, high charge level indicator, low charge level indicator, screw conveyer, preheating kiln, screw conveyer's feed inlet sets up the surge bin, and the belt feeder is connected to the surge bin, and high charge level indicator sets up on surge bin upper portion, and low charge level indicator sets up in the surge bin lower part, and screw conveyer's discharge gate setting is preheating kiln feed end, sets up the fender air door at screw conveyer's discharge gate.
Further, screw conveyer includes casing, screw rod, variable frequency speed motor, and the one end of casing sets up feed inlet, variable frequency speed motor, and the other end sets up the discharge gate, and the screw rod setting is in the casing and links to each other with variable frequency speed motor, is equipped with one section cavity between screw rod and the discharge gate.
Furthermore, the wind shielding door is rotationally connected with the shell through a pin shaft, and a spring is arranged at the inner side of the wind shielding door.
Further, the surge bin is in an inverted cone shape.
Further, an overhaul trolley is arranged at the bottom of the screw conveyor.
Further, a tail gas exhaust pipeline is arranged at the feeding end of the preheating kiln.
The beneficial effects are that:
(1) the high level gauge and the low level gauge are arranged on the buffer bin, the height of the material column is always controlled through the level gauge, and the air locking effect is guaranteed.
(2) The variable-frequency speed-regulating motor of the screw conveyor has a variable-frequency speed-regulating function and can rotate positively and negatively. When the incoming material quantity is adjusted, the spiral adapts to the change of the material quantity through frequency conversion debugging. The spiral has positive and negative rotation functions, and can prevent materials from being tied in the shell.
(3) A section of cavity is arranged between the screw rod and the discharge hole of the screw conveyor, so that materials can be kept in the cavity all the time in a normal conveying state, and a certain air locking function is formed.
(4) A material outlet of the spiral material outlet machine is provided with a wind blocking door, and during normal material outlet, the material in the process of advancing can overcome the spring force to jack the wind blocking door for normal material discharging. The air baffle door can also play the purpose of preventing the ambient atmosphere from channeling into the interior of the preheating kiln.
(5) The bottom of the spiral discharging machine is provided with an overhaul trolley, so that the overhaul of the device is facilitated.
Drawings
Figure 1 is a front view of the feed airlock of this utility model.
Figure 2 is a side view of the feed airlock of this utility model.
Fig. 3 is a schematic view of the structure of the screw conveyor.
In the figure, a belt conveyor is 1; 2-tail gas exhaust pipelines; 3-a buffer bin; 4-high level gauge; 5-a low level gauge; 6-screw conveyor; 6-1-shell; 6-2-feeding hole; 6-3-frequency conversion speed regulating motor; 6-4 parts of a discharge hole; 6-5-springs; 6-6-screw rod; 6-7-cavity; 6-8-blocking air door; 7-overhauling the trolley; 8-preheating kiln.
The specific embodiment is as follows:
the utility model is further explained below with reference to the drawings.
As shown in fig. 1 to 3, the novel feeding air locking device based on the lithium ore preheating system comprises a belt conveyor 1, a buffer bin 3, a high level gauge 4, a low level gauge 5, a screw conveyor 6 and a preheating kiln 8. The feed inlet 6-2 of screw conveyer 5 sets up surge bin 3, and belt feeder 1 is connected to surge bin 3, and high charge level indicator 4 sets up in surge bin 3 upper portion, and low charge level indicator 5 sets up in surge bin 3 lower part, and the discharge gate 6-4 of screw conveyer 6 sets up at preheating kiln 8 feed end, and the discharge gate 6-4 at screw conveyer 6 sets up fender air door 6-8.
The screw conveyor 6 comprises a shell 6-1, a screw rod 6-6 and a variable frequency speed regulating motor 6-3, wherein one end of the shell 6-1 is provided with a feed inlet 6-2 and the variable frequency speed regulating motor 6-3, the other end of the shell is provided with a discharge outlet 6-4, the screw rod 6-6 is arranged in the shell 6-1 and is connected with the variable frequency speed regulating motor 6-3, and a section of cavity 6-7 is arranged between the screw rod 6-6 and the discharge outlet 6-4. The wind shielding door 6-8 is rotatably connected with the shell 6-1 through a pin shaft, and a spring 6-5 is arranged on the inner side of the wind shielding door 6-8. The buffer bin 3 is in an inverted cone shape, and the lower end of the buffer bin is in sealing connection with the discharge port 6-4.
During normal production, the belt conveyor 1 discharges raw materials into the buffer bin 3, and then the raw materials are conveyed into the preheating kiln 8 by the screw conveyor 6 for preheating. The screw 6-6 of the screw conveyor 6 is fed at a certain rotational speed, and the high level gauge 4 and the low level gauge 5 are each kept at a stable value. When the high level gauge 4 is triggered, the rotating speed of the screw rod 6-6 is quickened, the feeding speed is improved, and when the low level gauge 5 is triggered, the rotating speed of the screw rod 6-6 is reduced, the material column with a certain height is always kept in the buffer bin 3, the effect of air locking is kept, and short circuit between gas in a kiln and the ambient atmosphere can be avoided.
Because the section of cavity 6-7 is arranged between the screw rod 6-6 and the discharge hole 6-4 of the screw conveyor 6, the cavity 6-7 can be kept to have materials all the time in a normal conveying state, and a certain air locking function is also formed. The air blocking door 6-8 is provided with the spring 6-5, and during normal discharging, the advancing material can overcome the force of the spring 6-5 to push the air blocking door 6-8 for normal discharging. The air blocking door 6-8 can also play the purpose of preventing the ambient atmosphere from channeling into the interior of the preheating kiln.
In order to facilitate the overhaul of the screw conveyor 6, an overhaul trolley 7 is arranged at the bottom of the screw conveyor 6, when the system stops working, the overhaul trolley 7 is required to be moved, the screw conveyor 6 is separated from the preheating kiln 8, the material storage at the discharge end of the screw conveyor 6 is cleaned, and the hardening of materials is prevented.
The tail gas exhaust pipeline 2 is arranged at the feeding end of the preheating kiln 8. The high-temperature flue gas introduced into the preheating kiln 8 from the rear-end roasting kiln is discharged along the tail gas exhaust pipeline 2 after the materials are preheated.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (5)
1. Novel feeding air locking device based on lithium ore preheating system, its characterized in that: the device comprises a belt conveyor, a buffer bin, a high level gauge, a low level gauge, a screw conveyor and a preheating kiln, wherein the buffer bin is arranged at a feed inlet of the screw conveyor, the buffer bin is connected with the belt conveyor, the high level gauge is arranged at the upper part of the buffer bin, the low level gauge is arranged at the lower part of the buffer bin, a discharge outlet of the screw conveyor is arranged at the feed end of the preheating kiln, and a damper is arranged at a discharge outlet of the screw conveyor;
the screw conveyor comprises a shell, a screw rod and a variable frequency speed regulating motor, wherein one end of the shell is provided with a feed inlet and the variable frequency speed regulating motor, the other end of the shell is provided with a discharge outlet, the screw rod is arranged in the shell and is connected with the variable frequency speed regulating motor, and a section of cavity is arranged between the screw rod and the discharge outlet.
2. The novel feed windlock based on lithium ore preheating system of claim 1, wherein: the wind shielding door is rotationally connected with the shell through a pin shaft, and a spring is arranged on the inner side of the wind shielding door.
3. The novel feed windlock based on lithium ore preheating system of claim 1, wherein: the buffer bin is in an inverted cone shape.
4. The novel feed windlock based on lithium ore preheating system of claim 1, wherein: and an overhaul trolley is arranged at the bottom of the screw conveyor.
5. The novel feed windlock based on lithium ore preheating system of claim 1, wherein: and a tail gas exhaust pipeline is arranged at the feed end of the preheating kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322197128.9U CN220624912U (en) | 2023-08-16 | 2023-08-16 | Novel feeding air locking device based on lithium ore preheating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322197128.9U CN220624912U (en) | 2023-08-16 | 2023-08-16 | Novel feeding air locking device based on lithium ore preheating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220624912U true CN220624912U (en) | 2024-03-19 |
Family
ID=90232903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322197128.9U Active CN220624912U (en) | 2023-08-16 | 2023-08-16 | Novel feeding air locking device based on lithium ore preheating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220624912U (en) |
-
2023
- 2023-08-16 CN CN202322197128.9U patent/CN220624912U/en active Active
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