CN220836957U - Quartz sand pickling device - Google Patents

Quartz sand pickling device Download PDF

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Publication number
CN220836957U
CN220836957U CN202322392892.1U CN202322392892U CN220836957U CN 220836957 U CN220836957 U CN 220836957U CN 202322392892 U CN202322392892 U CN 202322392892U CN 220836957 U CN220836957 U CN 220836957U
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China
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reaction tank
quartz sand
heating
acid
stirring
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CN202322392892.1U
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李硕
向柳飞
郭雄
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Hunan Qibin Solar Technology Co ltd
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Hunan Qibin Solar Technology Co ltd
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Abstract

The utility model discloses a quartz sand pickling device which comprises a reaction tank, a stirring mechanism and a heating sleeve, wherein a sand inlet, a sand outlet and an acid inlet are formed in the reaction tank; the stirring mechanism is arranged on the reaction tank, and one end of the stirring mechanism extends to the inside of the reaction tank so as to stir and mix the acid liquor and quartz sand in the reaction tank; and the heating sleeve is coated outside the reaction tank, a heating cavity is formed between the heating sleeve and the reaction tank, a heating medium is filled in the heating cavity, and the heating medium is an organic solvent with the boiling point larger than that of water. The utility model provides a quartz sand pickling device, which solves the problem of lower acid liquor evaporation efficiency caused by heating in water bath in the existing pickling device.

Description

Quartz sand pickling device
Technical Field
The utility model relates to the technical field of quartz sand purification, in particular to a quartz sand pickling device.
Background
The quartz sand pickling process is mainly used for removing iron oxides and other pickling impurities in the quartz sand. In the prior art, the pickling device for quartz sand is mainly a reaction kettle, when quartz sand is required to be pickled, the quartz sand is poured into the reaction kettle, and then pickling liquid is poured into the reaction kettle from the top end of the reaction kettle, and the pickling liquid can be used for pickling the quartz sand.
In the existing pickling device, an aqueous medium is generally used for heating the reaction kettle, and the boiling point of water is 100 ℃, so that the reaction kettle can only be heated to 100 ℃ at most. Because the heating temperature is not high enough, the acid liquor in the reaction kettle evaporates slowly, so that the time required for heating the acid liquor in the reaction kettle to a certain temperature is longer, and the acid washing efficiency is lower.
Disclosure of utility model
The utility model mainly aims to provide a quartz sand pickling device, and aims to solve the problem that the existing pickling device is low in acid liquor evaporation efficiency due to the fact that water bath heating is adopted.
In order to achieve the above object, the quartz sand pickling device provided by the utility model comprises:
the reaction tank is provided with a sand inlet, a sand outlet and an acid inlet;
The stirring mechanism is arranged on the reaction tank, and one end of the stirring mechanism extends to the inside of the reaction tank so as to stir and mix the acid liquor and quartz sand in the reaction tank; and
The heating sleeve is coated outside the reaction tank, a heating cavity is formed between the heating sleeve and the reaction tank, heating medium is filled in the heating cavity, and the heating medium is an organic solvent with the boiling point larger than that of water.
Optionally, in an embodiment of the present utility model, the quartz sand pickling device further includes a recovery mechanism, one end of the recovery mechanism is connected to the top of the reaction tank, and the other end of the recovery mechanism is connected to the bottom of the reaction tank.
Optionally, in an embodiment of the present utility model, the recycling mechanism includes:
the heat exchanger is arranged at one side of the reaction tank;
One end of the gas pipe is communicated with the reaction tank, and the other end of the gas pipe is communicated with the heat exchanger; and
And one end of the liquid pipe is communicated with the heat exchanger, and the other end of the liquid pipe is communicated with the reaction tank.
Optionally, in an embodiment of the present utility model, the recovery mechanism further includes a storage tank, the storage tank is disposed on the liquid pipe, and the heat exchanger and the reaction tank are both in communication with the storage tank.
Optionally, in an embodiment of the present utility model, the quartz sand pickling device further includes a heater, where the heater is disposed on a side of the heating jacket facing away from the reaction tank and extends into the heating cavity.
Optionally, in an embodiment of the present utility model, the stirring mechanism includes:
the driving motor is arranged on the reaction tank;
the stirring shaft is arranged in the reaction tank and is in transmission connection with an output shaft of the driving motor; and
And the stirring paddle is arranged at one end of the stirring shaft, which is far away from the driving motor, and is connected with the stirring shaft.
Optionally, in an embodiment of the present utility model, the stirring paddle has a spiral cone structure.
Optionally, in an embodiment of the present utility model, the stirring paddle is in a cylindrical structure, and a wall of the cylindrical structure is provided with a leak.
Optionally, in an embodiment of the present utility model, the quartz sand pickling device further includes an acid spraying component, and the acid spraying component is disposed inside the reaction tank and is communicated with the acid inlet.
Optionally, in an embodiment of the present utility model, the acid spraying assembly includes:
The homogenizing pipes are communicated with the acid inlet and are arranged in parallel; and
And the nozzle is connected to one side of the homogenizing pipe, which faces the stirring paddle.
Compared with the prior art, in the technical scheme provided by the utility model, the sand inlet, the sand outlet and the acid inlet are arranged on the reaction tank, quartz sand is added into the reaction tank through the sand inlet, and acid liquor is added into the reaction tank through the acid inlet; in order to uniformly mix the acid liquor and the quartz sand, a stirring mechanism is further arranged on the reaction tank, one end of the stirring mechanism extends to the inside of the reaction tank, so that the stirring mechanism rotates in the reaction tank to stir and mix the acid liquor and the quartz sand, impurities and oxides on the surface of the quartz sand are removed and then discharged through a sand outlet, and the discharged acid liquor and quartz sand can be subjected to deacidification treatment to obtain high-purity quartz sand. In addition, in order to improve the speed of pickling, still cladding has the heating jacket in the outside of retort, is formed with the heating chamber between heating jacket and the retort to be used for filling heating medium in the heating chamber, through carrying out high temperature heating to the heating medium, make the acidizing fluid evaporation in the retort become steam, compare in liquid acidizing fluid, the acidizing steam can contact with quartz sand more closely. In order to improve the highest heating temperature of the heating medium, the heating medium is an organic solvent with the boiling point larger than that of water, and because the organic solvent is higher than that of water, the heating speed of the acid liquor can be increased, the heating time can be shortened, the highest heating temperature of the acid liquor can be improved, and the pickling efficiency of quartz sand can be further improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a quartz sand pickling apparatus according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of a reaction tank in an embodiment of a quartz sand pickling apparatus according to the present utility model;
FIG. 3 is a schematic structural view of a stirring paddle in an embodiment of the quartz sand pickling device of the utility model;
FIG. 4 is a schematic diagram of an acid spraying assembly in an embodiment of a quartz sand pickling apparatus according to the present utility model;
FIG. 5 is a top view of an acid spraying assembly in another embodiment of the quartz sand pickling apparatus of the present utility model.
Reference numerals illustrate:
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In the existing pickling device, an aqueous medium is generally adopted to heat the reaction kettle, and the boiling point of water is 100 ℃, so that the reaction kettle can only be heated to 100 ℃ at most. The highest heatable temperature is not high enough, and the acid liquor in the reaction kettle evaporates relatively slowly, so that the time required for heating the acid liquor in the reaction kettle to a certain temperature is longer, and the acid pickling efficiency is lower.
Based on the heating cavity, the heating sleeve is arranged outside the reaction tank, a heating cavity is formed between the heating sleeve and the reaction tank, and the heating cavity is filled with a heating medium, and the heating medium is an organic solvent for improving the heatable temperature of the heating medium.
As shown in fig. 1 to 5, the quartz sand pickling device comprises:
A reaction tank 100, wherein the reaction tank 100 is provided with a sand inlet 110, a sand outlet 120 and an acid inlet 130;
The stirring mechanism 200 is arranged on the reaction tank 100, and one end of the stirring mechanism 200 extends to the inside of the reaction tank 100 so as to stir and mix the acid liquor and quartz sand in the reaction tank 100; and
The heating jacket 300 is coated outside the reaction tank 100, and forms a heating cavity 310 with the reaction tank 100, wherein a heating medium is filled in the heating cavity 310, and the heating medium is an organic solvent with a boiling point greater than that of water.
In the technical scheme adopted in the embodiment, the sand inlet 110, the sand outlet 120 and the acid inlet 130 are arranged on the reaction tank 100, quartz sand is added into the reaction tank 100 through the sand inlet 110, and acid liquor is added into the reaction tank 100 through the acid inlet 130; in order to uniformly mix the acid solution and the quartz sand, a stirring mechanism 200 is further provided on the reaction tank 100, and one end of the stirring mechanism 200 extends into the reaction tank 100, so that the stirring mechanism rotates in the reaction tank 100 to stir and mix the acid solution and the quartz sand, impurities and oxides on the surface of the quartz sand are removed and discharged through the sand outlet 120, and the discharged acid solution and quartz sand can be subjected to deacidification treatment to obtain high-purity quartz sand. In addition, in order to increase the pickling speed, the heating jacket 300 is further coated on the outside of the reaction tank 100, a heating cavity 310 is formed between the heating jacket 300 and the reaction tank 100, and the heating cavity 310 is filled with a heating medium, and by heating the heating medium at a high temperature, the acid liquid in the reaction tank 100 is evaporated to become steam, so that the acid steam can be in closer contact with the quartz sand than the liquid acid liquid. In order to improve the highest heating temperature of the heating medium, the heating medium is selected from organic solvents with boiling points larger than that of water, such as methyl silicone oil, dimethyl silicone oil and the like, because the organic solvents have higher boiling points than that of water, the heating speed of the acid liquor can be increased, the heating time can be shortened, the highest heating temperature of the acid liquor can be improved, and the pickling efficiency of quartz sand can be further improved.
Specifically, the shape of the reaction tank 100 is not particularly limited, and may be, for example, a barrel shape or a square box as long as it has a space capable of storing quartz sand and acid liquid; similarly, the material of the reaction tank 100 is not particularly limited, and may be, for example, stainless steel or metal, but has a certain acid resistance while ensuring a certain strength. Note that the shapes of the sand inlet 110, the sand outlet 120, and the acid inlet 130 in the reaction tank 100 are not particularly limited, and may be, for example, through holes provided on the inner wall of the reaction tank 100 and communicating with the inside thereof, so long as a flow passage of the acid liquid and the quartz sand can be provided. In addition, the kind of the acid solution is not particularly limited, and may be hydrofluoric acid, hydrochloric acid, sulfuric acid, oxalic acid, or the like, for example, so long as impurities and oxides on the surface of the quartz sand can be removed, and further the purity and quality of the quartz sand can be improved.
In order to further accelerate the pickling reaction, sealing valves (not shown) are added to each pipeline, and high-pressure gas can be injected while acid liquid is added from an acid inlet, so that the inside of the reaction tank maintains a high-temperature and high-pressure state, the pickling reaction of the acid liquid and quartz sand is quicker, and the pickling efficiency is effectively improved. In addition, the outside of the reaction tank can be provided with a pressure gauge communicated with the inside of the reaction tank, and the pressure gauge is used for detecting the pressure in the reaction tank in real time.
Alternatively, as shown in fig. 1, in an embodiment of the present utility model, the acid solution in the reaction tank 100 is heated at a high temperature, and volatilizes to generate a large amount of acid vapor, so that a part of the acid vapor cannot be recycled by the reaction tank 100, resulting in waste of the acid solution. In order to recycle the acid vapor in the reaction tank 100, a recycling mechanism 400 is further provided in the quartz sand pickling apparatus, and one end of the recycling mechanism 400 is connected to the top of the reaction tank 100 and the other end is connected to the bottom of the reaction tank 100.
Optionally, as shown in fig. 1, in an embodiment of the present utility model, the recycling mechanism 400 includes:
A heat exchanger 410 provided at one side of the reaction tank 100;
A gas pipe 420, one end of the gas pipe 420 is communicated with the reaction tank 100, and the other end is communicated with the heat exchanger 410; and
And a liquid pipe 430, one end of the liquid pipe 430 is communicated with the heat exchanger 410, and the other end is communicated with the reaction tank 100.
Specifically, the acid vapor in the reaction tank 100 is concentrated at the top of the reaction tank 100, and is led into the air pipe through the air pipe 420 communicated with the reaction tank 100 at the top, and then enters the heat exchanger 410 to be condensed, so that the high-temperature acid vapor is quickly condensed into acid liquid again, and the acid liquid re-condensed in the heat exchanger 410 is led out by the liquid pipe 430 and flows back into the reaction tank 100, thus realizing multiple recycling of the acid liquid and reducing the use cost of the acid liquid. It should be noted that the heat exchanger 410 may be a condenser with separate cooling water inlet and outlet lines, and separate acid vapor and acid flow lines.
Optionally, as shown in fig. 4, in an embodiment of the present utility model, in order to store the acid solution condensed in the heat exchanger 410, the recovery mechanism 400 further includes a storage tank 440, the storage tank 440 is disposed on the liquid pipe 430, and the heat exchanger 410 and the reaction tank 100 are both in communication with the storage tank 440. Preferably, a level sensor may also be provided in the storage tank 440 for real-time measurement of the volume of liquid in the storage tank 440.
Optionally, as shown in fig. 2, in an embodiment of the present utility model, in order to facilitate heating the heating medium in the heating chamber 310, a heater 500 may be further provided in the quartz sand pickling device, and preferably, the heater 500 is provided at a side of the heating jacket 300 facing away from the reaction tank 100 and extends into the heating chamber 310. The type of the heater 500 is not particularly limited, and may be, for example, an electric heating rod, a resistance wire, or the like, as long as the heater can heat a heating medium.
Optionally, as shown in fig. 2, in an embodiment of the present utility model, the stirring mechanism 200 includes:
A driving motor 210, the driving motor 210 being provided on the reaction tank 100;
A stirring shaft 220, which is disposed inside the reaction tank 100 and is in transmission connection with an output shaft of the driving motor 210; and
The stirring paddle 230 is disposed at one end of the stirring shaft 220 away from the driving motor 210, and is connected to the stirring shaft 220.
Specifically, in order to sufficiently mix the acid solution and the quartz sand, the stirring mechanism 200 in this embodiment is divided into a stirring shaft 220 and a stirring paddle 230 provided on the stirring shaft 220, and preferably, the stirring shaft 220 and the stirring paddle 230 are made of polytetrafluoroethylene. In addition, in order to drive the rotation of the stirring shaft 220, a driving motor 210 is further provided on the reaction tank 100, and the rotation of the stirring shaft 220 is realized by the rotation of the driving motor 210, so that the stirring paddle 230 and the stirring shaft 220 synchronously move, and further, the acid solution and the quartz sand are fully mixed.
Alternatively, as shown in fig. 1 and 2, in an embodiment of the present utility model, in order to improve the mixing efficiency of the acid solution and the quartz sand, the stirring paddle 230 is configured to have a spiral conical structure, and the conical design can enable the stirring paddle 230 to be quickly inserted into the quartz sand, and in addition, during the rotation process, the quartz sand and the acid solution can enter into the stirring paddle 230, so that the mixing between the stirring paddle and the stirring paddle is facilitated. In another embodiment, as shown in fig. 3, the stirring paddle 230 may be configured as a cylindrical structure, and the wall of the cylindrical structure is provided with a leak hole, so that quartz sand and acid liquor may be temporarily stacked on the cylindrical structure in the process of rotation, and be thrown into the reaction tank 100 through the leak hole under the action of the rotation force of the quartz sand and acid liquor, so that the mixing is more uniform.
Alternatively, as shown in fig. 1, 2, 4 and 5, in an embodiment of the present utility model, in order to prevent the acid solution injected from the acid inlet 130 from accumulating inside the reaction tank 100, mixing with the quartz sand is not uniform enough. The quartz sand pickling device also comprises an acid spraying assembly 600, wherein the acid spraying assembly 600 is arranged in the reaction tank 100 and is communicated with the acid inlet 130.
Optionally, as shown in fig. 4, in an embodiment of the present utility model, the acid spraying assembly 600 includes:
A homogenizing pipe 620 connected to the acid inlet 130, and a plurality of homogenizing pipes 620 are arranged in parallel; and
A nozzle 610 is connected to a side of the homogenizing pipe 620 facing the stirring paddle 230.
Specifically, in order to make the acid solution entering the reaction tank 100 from the acid inlet 130 uniformly mix with the quartz sand, the acid spraying assembly 600 is divided into a homogenizing pipe 620 and a nozzle 610, and it should be noted that, in order to ensure that the acid solution can reach the inside of the homogenizing pipe 620 from the acid inlet 130, the acid solution injected from the acid inlet 130 needs to be a high-pressure high-speed liquid, for example, a water pump may be used to pump the acid solution each time according to a certain volume; thus, the high-pressure high-speed acid solution can be introduced into the reaction tank 100 through the acid inlet 130, then introduced into the homogenizing pipe 620 for uniform dispersion, and then sprayed out through the nozzle 610.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A quartz sand pickling device, comprising:
the reaction tank is provided with a sand inlet, a sand outlet and an acid inlet;
The stirring mechanism is arranged on the reaction tank, and one end of the stirring mechanism extends to the inside of the reaction tank; and
The heating sleeve is coated outside the reaction tank, a heating cavity is formed between the heating sleeve and the reaction tank, heating medium is filled in the heating cavity, and the heating medium is an organic solvent with the boiling point larger than that of water.
2. The quartz sand pickling apparatus of claim 1, further comprising a recovery mechanism having one end connected to the top of the reaction tank and the other end connected to the bottom of the reaction tank.
3. The quartz sand pickling apparatus of claim 2, wherein the recovery mechanism comprises:
the heat exchanger is arranged at one side of the reaction tank;
One end of the gas pipe is communicated with the reaction tank, and the other end of the gas pipe is communicated with the heat exchanger; and
And one end of the liquid pipe is communicated with the heat exchanger, and the other end of the liquid pipe is communicated with the reaction tank.
4. A quartz sand pickling apparatus according to claim 3, characterised in that the recovery means further comprises a storage tank provided on the liquid pipe, and in that the heat exchanger and the reaction tank are both in communication with the storage tank.
5. The quartz sand pickling device of claim 1, further comprising a heater disposed on a side of the heating jacket facing away from the reaction tank and extending into the heating cavity.
6. The quartz sand pickling apparatus of claim 1, wherein the stirring mechanism comprises:
the driving motor is arranged on the reaction tank;
the stirring shaft is arranged in the reaction tank and is in transmission connection with an output shaft of the driving motor; and
And the stirring paddle is arranged at one end of the stirring shaft, which is far away from the driving motor, and is connected with the stirring shaft.
7. The quartz sand pickling device of claim 6, wherein the stirring paddle is of a spiral cone-shaped structure.
8. The quartz sand pickling device of claim 6, wherein the stirring paddle is of a cylindrical structure, and a leakage hole is formed in the wall of the cylindrical structure.
9. The quartz sand pickling device of claim 6, further comprising an acid spraying assembly disposed within the reaction tank and in communication with the acid inlet.
10. The quartz sand pickling device of claim 9, wherein the acid spray assembly comprises:
The homogenizing pipes are communicated with the acid inlet and are arranged in parallel; and
And the nozzle is connected to one side of the homogenizing pipe, which faces the stirring paddle.
CN202322392892.1U 2023-09-04 2023-09-04 Quartz sand pickling device Active CN220836957U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322392892.1U CN220836957U (en) 2023-09-04 2023-09-04 Quartz sand pickling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322392892.1U CN220836957U (en) 2023-09-04 2023-09-04 Quartz sand pickling device

Publications (1)

Publication Number Publication Date
CN220836957U true CN220836957U (en) 2024-04-26

Family

ID=90787748

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322392892.1U Active CN220836957U (en) 2023-09-04 2023-09-04 Quartz sand pickling device

Country Status (1)

Country Link
CN (1) CN220836957U (en)

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