CN214864341U - Wet preparation production line of high-purity quartz sand - Google Patents
Wet preparation production line of high-purity quartz sand Download PDFInfo
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- CN214864341U CN214864341U CN202022989580.5U CN202022989580U CN214864341U CN 214864341 U CN214864341 U CN 214864341U CN 202022989580 U CN202022989580 U CN 202022989580U CN 214864341 U CN214864341 U CN 214864341U
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Abstract
The utility model provides a wet process preparation production line of high-purity quartz sand, this preparation production line include coarse crusher group, rod mill unit, magnet separator unit, scrub machine, a plurality of flotation unit, gravity sorting unit to and dehydration processing apparatus. The device can be used for connecting an automatic continuous production line in series, and the continuous and high-efficiency production of the quartz sand is realized. Meanwhile, in the production line, materials are correspondingly treated by the rod mill unit, the magnetic separator unit, the scrubbing machine, the plurality of flotation units, the gravity separation device and other equipment in a mortar state, and the production line belongs to wet sand making, so that the sand making energy consumption is reduced, and the environmental pollution is reduced. In addition, the mortar concentration is controlled in each link of the wet-process sand making, the treatment effect of each link is ensured, the impurity content of the quartz sand can be smaller than 50ppm through the links of multi-stage magnetic separation, multi-stage flotation and gravity separation, and further the impurity content can be smaller than 30 ppm.
Description
Technical Field
The utility model relates to a non-metallic ore dressing processing technology field, more specifically say, relate to a wet process preparation production line of high-purity quartz sand.
Background
The high-purity quartz sand refers to a high-purity non-metallic mineral raw material with a certain particle size specification, which is produced by a series of physical and chemical purification technologies on natural quartz minerals. Harben (2002) classifies the processed quartz according to the total amount of impurities, depending on the purity of the commercial quartz product. In the classification scheme of Harben (2002), Quartz with the total amount of impurity elements lower than 50 μ g/g is defined as a High-grade Quartz material, and includes High Purity Quartz (total amount of impurity elements: 8-50 μ g/g), Ultra High Purity Quartz (total amount of impurity elements: 1-8 μ g/g), and Ultra High Purity Quartz (total amount of impurity elements < 1 μ g/g). Wherein, the latter is deficient or absent in nature and needs to be artificially synthesized.
The high-purity quartz sand is a main raw material for producing high-purity quartz glass tubes/rods/plates/mounds, quartz glass crucibles and optical quartz glass, and the quartz glass is widely applied to industries such as high-end electric light sources, large-scale and ultra-large-scale integrated circuits, solar batteries, optical fibers, lasers, aerospace, military and the like due to excellent physical and chemical properties of the quartz glass.
The raw ore of the high-purity quartz sand is natural quartz ore, the quartz ore usually contains various impurity minerals except quartz, the common impurity minerals comprise mica, feldspar, green cord stone, iron minerals and the like, the quartz ore is extracted from the ore, and other impurity minerals are separated, so that the method is a key process for producing the high-purity quartz sand.
In the prior art, the dry sand making technology is usually adopted for producing high-purity quartz sand in China, namely, quartz ore is subjected to high-temperature calcination for several hours at the temperature of over 900 ℃, then the hot ore is put into cold water for water quenching, and then the hot ore is fished out of the water and dried, and then is subjected to dry crushing and screening. The dry sand making technology has high energy consumption and serious dust pollution. In addition, the magnetic separation and flotation process in the prior art has poor effect of separating impurity minerals; and the prior art can not realize continuous production and has low efficiency, and is also an important aspect that the production technology of high-purity quartz sand in China lags behind the international advanced level for a long time.
Therefore, how to design a new sand making production line with low energy consumption, less pollution, continuous production, high efficiency and high purity is a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned one or more problem that proposes.
In order to solve the problem, the utility model provides a wet process preparation production line of high-purity quartz sand.
The technical scheme of the utility model a wet process preparation production line of high-purity quartz sand is provided, include:
a coarse crusher set comprising a coarse crusher and a first screening device in communication with the coarse crusher;
the rod mill unit comprises a rod mill and a second screening device, the rod mill is communicated with the first screening device through a feeding controller, the second screening device is connected to a discharge port of the rod mill, and the feeding controller is used for feeding materials to the rod mill;
the magnetic separator set is connected with the discharge port of the second screening device and is used for carrying out magnetic separation treatment on the quartz mortar;
the scrubbing machine is connected with a discharge port of the magnetic separator set and is used for scrubbing the quartz mortar subjected to magnetic separation;
a plurality of flotation units, at least two of which are connected in series to form a flotation cell bank, the inlet end of the flotation cell bank being connected to the attrition scrubber and the outlet end of the flotation cell bank being detachably connected to a gravity separation device;
the gravity separation device is used for performing gravity separation on the quartz mortar subjected to the flotation treatment so as to remove heavy minerals in the quartz mortar;
the third screening device is connected with an outlet of the gravity sorting device and is used for removing quartz sand smaller than the lower limit of the required particle size in the quartz mortar;
the dehydration treatment device is connected with the third screening device and is used for dehydrating the quartz mortar screened by the third screening device to prepare quartz sand with required specification;
wherein, correspond one or more of rod mill unit, magnet separator unit, scrub machine and a plurality of flotation unit with gravity sorting unit is provided with concentration control device, concentration control device include concentration detection device and with the feedwater controlling means that concentration detection device is connected.
Further, each flotation unit comprises a flotation machine and a size mixing tank which are connected in series, an inlet of each flotation unit is arranged on the size mixing tank, and an outlet of each flotation unit is arranged on the flotation machine.
Furthermore, the concentration control device is arranged corresponding to each flotation unit, the concentration detection device of the concentration control device is arranged in the flotation machine and used for detecting the concentration of the mortar in the flotation machine, and the water supply control device of the concentration control device is connected with the flotation machine and used for supplying water into the flotation machine and adjusting the water supply amount so as to adjust the mortar concentration in the flotation machine.
Furthermore, the size mixing tank is a cylinder type size mixing tank, the inner wall of the cylinder type size mixing tank is provided with a corrosion-resistant lining material, and the inner wall of the flotation machine is provided with the corrosion-resistant lining material.
In any of the above technical solutions, preferably, the wet preparation production line of high purity quartz sand further includes: and the packaging unit is connected with the dehydration treatment device and is used for packaging the prepared quartz sand with the required specification.
In any of the above technical solutions, preferably, the wet preparation production line of high purity quartz sand further includes: and the pickling unit is connected with the dehydration treatment device and is used for sequentially pickling, washing and drying the prepared quartz sand with the required specification or the packaged quartz sand.
In any one of the above technical solutions, preferably, the magnetic separator set includes a plurality of wet magnetic separators, and the plurality of wet magnetic separators are connected by a material pumping device or by using a potential difference.
In any of the above embodiments, preferably, the gravity sorting device comprises one or both of a shaker and a spiral chute.
In any of the above technical solutions, preferably, the dehydration treatment apparatus includes a high-speed centrifugal dehydrator and/or a belt filter.
In any of the above technical solutions, preferably, the first screening device, the second screening device, and the third screening device are wet screening devices.
In any of the above technical solutions, preferably, a rubber layer is disposed on an inner wall of the scrubber.
In any of the above technical solutions, preferably, the coarse crusher includes a jaw crusher and a cone crusher, and the jaw crusher, the cone crusher and the first screening device are connected in sequence by a belt conveyor.
In any of the above solutions, preferably, the flotation reagents used in a plurality of the flotation cells include a plurality of collectors suitable for a plurality of impurity minerals. Such as alkylamine salt cationic collectors, petroleum sulfonic acid sodium salt anionic collectors or salicylhydroxamic acid.
In any of the above technical solutions, preferably, the rod mill unit, the magnetic separator unit, the scrubber, the flotation unit and the gravity separation device are sequentially connected by a material pumping device, and two adjacent flotation units in the flotation unit are connected by a material pumping device.
Has the advantages that: the utility model discloses to the lagging situation of china's high-purity quartz sand production, provided a new high-purity quartz sand's wet process preparation production line, this kind of high-purity quartz sand's wet process preparation production line can carry out big batch continuous production through wet process system sand, multistage magnetic separation, multistage flotation. Specifically, the method comprises the following steps: according to the utility model provides a wet process preparation production line of high-purity quartz sand, including the rough crusher group that is used for rough crushing-screening to handle, be used for the rod mill unit that fine crushing-screening was handled, be used for the magnet separator group that magnetic separation was handled, be used for scrubbing the machine of handling, be used for a plurality of flotation unit that multistage flotation handled, be used for reselecting gravity sorting unit who handles to and be used for dehydration treatment's dehydration unit and be used for the pickling unit etc. of pickling. In particular, the coarse crusher group consists of a jaw crusher, a cone crusher and a first screening device, which mainly crushes large ores into small stones. The rod mill unit consists of a rod mill and a second screening device, and mainly has the functions of crushing small stones into quartz sand grains and screening the quartz sand grains into quartz sand of different specifications through the second screening device. The magnetic separator set consists of a plurality of magnetic separators and is mainly used for removing mechanical iron and iron-containing minerals in quartz sand. The scrubbing machine utilizes scrubbing equipment to remove adhering impurities on the surfaces of quartz sand particles and round the outline of the particles, thereby improving the physical and chemical properties of the particles. A plurality of flotation units are used by a plurality of size mixing tanks and flotation machines in series to form a continuous flotation production line which is suitable for different ore types, and equipment can be used in a plurality of modes according to the types and the contents of impurity minerals in ores. For example, when the impurity minerals are single, the number of size mixing tanks and flotation machines can be reduced, and qualified products can be floated. The gravity sorting device removes heavy minerals in quartz sand by utilizing equipment such as a shaking table or a spiral chute. The dehydration treatment device is composed of a high-speed centrifugal dehydrator or a belt filter, and the two devices are respectively selected and used according to the requirements of subsequent treatment so as to remove most of water in the quartz sand. The automatic continuous production line can be connected in series through the equipment, large ores can be fed into the automatic continuous production line from the initial end of the production line, quartz sand with the particle size smaller than 1mm is produced from the dehydration end, the automatic continuous production line can perform continuous flow operation, and continuous high-efficiency production of the quartz sand is realized. And most of impurities in the quartz sand can be separated out through magnetic separation, flotation treatment and gravity treatment, so that the content of the prepared SiO2 is up to more than 99.997 percent, namely the content of the impurities is less than 30ppm, and the purity of the quartz sand is ensured. Of course, through the production line provided by the application, the quartz sand with the impurity content of more than 30ppm can be produced by reducing the requirements of various processes, namely, the impurity content of the quartz sand produced by the production line provided by the application can be more than 30ppm and can also be less than 30 ppm. Meanwhile, the wet-process preparation production line of the high-purity quartz sand provided by the application adopts the wet-process sand making, compared with the existing dry-process sand making, the wet-process preparation production line has the advantages of low energy consumption and no dust pollution basically, so that the energy consumption for sand making is reduced, and the pollution of the sand making process to the environment is reduced.
It should be understood that what is described in this disclosure section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to be used to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
FIG. 1 shows a process diagram of a wet preparation production line for high purity silica sand, according to an embodiment of the present disclosure.
Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is as follows:
10 jaw crusher, 12 cone crusher, 14 first screening device, 16 rod mill, 18 second screening device, 22 first magnetic separator, 24 second magnetic separator, 3 scrubbing machine, 42 size mixing tank, 44 flotation machine, 5 gravity separation device, 6 third screening device, 72 belt filter, 74 centrifugal dehydrator, 8 products.
Detailed Description
To make the objects, embodiments and advantages of the embodiments of the present disclosure clearer, the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is to be understood that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The wet preparation line of high purity silica sand according to the embodiment of the present invention will be described with reference to fig. 1.
As shown in fig. 1, an embodiment of the present invention provides a wet process production line of high purity quartz sand, including:
a coarse crusher group comprising a coarse crusher and a first screening device 14 communicating with the coarse crusher, preferably the coarse crusher may be in particular one or a combination of the jaw crusher 10 and the cone crusher 12 in fig. 1;
the rod mill unit comprises a rod mill 16 and a second screening device, wherein the rod mill 16 is communicated with the first screening device 14 through a feeding control machine, the second screening device is connected to a discharge port of the rod mill 16, and the feeding control machine is used for feeding materials to the rod mill 16;
the magnetic separator set is connected with the discharge port of the second screening device and is used for carrying out magnetic separation treatment on the quartz mortar; preferably, the magnetic separator set can be composed of a first magnetic separator 22 and a second magnetic separator 24 in fig. 1, etc., so as to perform single or multiple magnetic separation;
the scrubbing machine 3 is connected with a discharge port of the magnetic separator set and is used for scrubbing the quartz mortar subjected to magnetic separation;
at least two flotation units in the plurality of flotation units are connected in series to form a flotation unit, the inlet end of the flotation unit is connected with the scrubbing machine 3, and the outlet end of the flotation unit is detachably connected with the gravity separation device 5; when in use, a flotation scheme can be determined, the number of the required flotation units is determined according to the flotation scheme, and then the required flotation units are sequentially connected in series between the scrubbing machine 3 and the gravity sorting device 5;
the gravity separation device 5 is used for performing gravity separation on the quartz mortar subjected to the flotation treatment so as to remove heavy minerals in the quartz mortar, and preferably, the gravity separation device 5 can be embodied as a spiral chute in fig. 1;
the third screening device 6 is connected with the outlet of the gravity sorting device 5 and is used for removing quartz sand smaller than the lower limit of the required particle size in the quartz mortar;
the dehydration treatment device is connected with the third screening device 6 and is used for dehydrating the quartz mortar screened by the third screening device 6 to prepare quartz sand with required specification; preferably, the dehydration treatment means may specifically include the belt filter 72 and the centrifugal dehydrator 74 in fig. 1;
wherein, a concentration control device (not shown in the figure) is arranged corresponding to one or more of the rod mill unit, the magnetic separator unit, the scrubbing machine 3 and the plurality of flotation units and gravity separation devices 5, and the concentration control device comprises a concentration detection device and a water supply control device connected with the concentration detection device.
According to the utility model provides a wet process preparation production line of high-purity quartz sand, include from a 7 processes to g, wherein, process a is crushing process, including the coarse crushing-screening process that jaw crusher 10, cone crusher 12 and first sieving mechanism 14 constitute to and the fine crushing-screening process that rod mill 16 and second sieving mechanism 18 constitute. The coarse crushing-screening process is used for crushing the large ores into small stones, and the fine crushing-screening process is used for grinding the small stone rods into quartz sand grains, and then screening the quartz sand grains into quartz sand of a required specification through the second screening device 18. The step b is a magnetic separation treatment step having a configuration of a plurality of magnetic separators. The main function of the method is to remove mechanical iron and iron-containing minerals in quartz sand. The scrubbing treatment is to remove the adhering impurities on the surface of the quartz sand particles by using scrubbing equipment, round the outline of the particles and improve the physical and chemical properties of the particles. The step c is a scrubbing treatment step of the scrubber 3. The step d is a flotation treatment step in which a plurality of flotation cells are connected in series. In this process, at least two flotation units form a continuous flotation line adaptable to different ore types, i.e. a plurality of flotation units can be combined into a flotation cell set for different stages of flotation. In particular, a plurality of flotation units can be combined into flotation cell sets of different lengths depending on the type and content of the tramp minerals in the ore, e.g. the number of size reduction tanks and flotation cells can be reduced when the tramp minerals are relatively single. Different minerals can be removed through multi-stage flotation, and collecting agents with different scheme formulas and different flotation units can be adopted for different minerals, such as feldspar and mica. The flotation stage number and the flotation times can be set according to the type and the amount of impurities in the raw ore. For example, the mineral impurities with high flotation difficulty can be subjected to multiple times of flotation. The process e is a reselection process, which is implemented by a spiral chute in fig. 1. The gravity separation treatment is to remove heavy minerals in quartz sand by utilizing equipment such as a shaking table or a spiral chute. The step f is a second sieving step by the third sieving device 6, and the step g is a dewatering step, and in the example provided in FIG. 1, the dewatering step in the step g is mainly performed by the belt filter 72 and the centrifugal dehydrator 74. In practical use, the two devices can be selected and used respectively according to the requirements of subsequent treatment so as to remove most of water in the quartz sand. The automatic continuous production line can be connected in series through the links, can feed large ores from the starting end of the production line to produce quartz sand with the particle size less than 1mm through dehydration, can perform continuous flow operation, and realizes continuous and high-efficiency production of the quartz sand. And the preparation method can separate most impurities in the quartz sand through magnetic separation, flotation treatment and gravity treatment, so that the content of the prepared SiO2 is up to more than 99.995%, namely the content of the impurities is less than 50ppm, thus the purity of the quartz sand is ensured, and meanwhile, compared with the existing dry-method sand preparation, the wet-method preparation method and the wet-method preparation production line for the high-purity quartz sand provided by the application can perform corresponding flotation according to the content of the impurities due to the adoption of wet-method sand preparation, so that the cost is reduced, the wet-method sand preparation energy consumption is low, and dust pollution is basically avoided, so that the sand preparation energy consumption is reduced, and the environmental pollution caused by the sand preparation process is reduced.
Further, as shown in fig. 1, each flotation unit comprises a flotation machine 44 and a size mixing tank 42 connected in series with each other, the inlet of each flotation unit is arranged on the size mixing tank 42, and the outlet of each flotation unit is arranged on the flotation machine 44. When connected, the surge tank 42 of the first flotation unit of the flotation cell may be connected to the previous process and the flotation machine 44 of the last flotation unit of the flotation cell may be connected to the next process by means of a connecting pipe or the like. Furthermore, each flotation unit is correspondingly provided with a concentration control device. Specifically, the concentration detection device of the concentration control device is provided in the flotation machine 44 and detects the concentration of the mortar in the flotation machine 44, and the feed water control device of the concentration control device is connected to the flotation machine 44 and supplies water into the flotation machine 44 to adjust the feed water amount, thereby adjusting the mortar concentration in the flotation machine 44.
In this embodiment each flotation unit comprises a flotation machine 44 and a size mixing tank 42 connected in series, wherein the size mixing tank 42 of the same flotation unit is arranged in front of the flotation machine 44 and the size mixing tank 42 is used for size mixing, and when in use, the required flotation reagents can be placed and mixed in the size mixing tank 42 of each flotation unit. While the flotation machine 44 is used for flotation separation, water can be added to the flotation machine 44 by means of the concentration control device to dilute the quartz mortar as it passes through the flotation machine 44. And a concentration control device is arranged corresponding to the flotation machine 44, so that the mortar concentration in the flotation machine 44 can be reasonably controlled.
Further, the outlet of each flotation machine 44 is provided with a three-way connection device, the three-way connection device has two outlets, one outlet is used for being connected with the next stage flotation unit, the other outlet is used for being connected with the gravity separation device 5, the inlet of the three-way connection device and the two outlets can be switched and communicated at will, and of course, the switching between the two outlets of the three-way connection device can also be realized in a manual mode. According to the structure, after a flotation scheme is determined, the required flotation units can be connected in series between an upper process and a lower process according to the required number of the flotation units.
Further, the size mixing tank 42 is a cylindrical size mixing tank, the inner wall of the cylindrical size mixing tank is provided with a corrosion-resistant lining material, and the inner wall of the flotation machine 44 is provided with a corrosion-resistant lining material. The corrosion resistant lining is provided to enhance the corrosion resistance of the size mixing tank 42 and the flotation machine 44.
In the above embodiment, preferably, as shown in fig. 1, the wet preparation line for high purity silica sand further includes: and the packaging unit is connected with the dehydration treatment device and is used for packaging the prepared quartz sand with the required specification.
In this embodiment, the wet-process production line for high-purity quartz sand further comprises a packaging treatment process h consisting of a packaging unit, and the packaging of the quartz sand can be realized through the process h. And a well-packaged product 8 can be prepared after the packaging is finished. Thereafter, the product 8 may also be pickled.
In any of the above embodiments, preferably, the wet preparation line for high purity silica sand further includes: and the pickling unit (not shown in the figure) is connected with the dehydration treatment device and is used for sequentially pickling, washing and drying the prepared quartz sand with the required specification or the packaged quartz sand.
In this embodiment, the pickling line is used for pickling, washing and drying the prepared quartz sand or the packaged quartz sand, wherein the pickling, washing and drying specifically comprises the following steps: preparing a pickling solution, soaking the prepared quartz sand with the required specification into the pickling solution for pickling, filtering out the pickled quartz sand, washing the filtered quartz sand with water to be neutral, and then drying (the drying temperature is approximately about 120 ℃). In this step, the rinsing with water is performed to rinse away the residue of the pickling process. The acid washing solution is preferably a hydrogen fluoride solution, but may be an acidic solution such as hydrochloric acid, sulfuric acid, nitric acid, or ammonium bifluoride. The hydrogen fluoride solution is an aqueous solution of hydrogen fluoride, the concentration range of the hydrogen fluoride solution is 5-40%, and when the quartz sand and the hydrogen fluoride solution are placed into a reaction kettle for sealed soaking, the soaking temperature is 40-120 ℃, and the soaking time is 2-5 h. In the above step, the acid washing step is mainly to remove some of the acid-soluble metal oxides and silicate minerals.
In any of the above embodiments, preferably, the magnetic separator set includes a plurality of magnetic separators, and the magnetic separators are connected by a material pumping device or by using a potential difference.
In another embodiment, gravity sorting device 5 may also be a shaker (not shown).
In any of the above embodiments, preferably, the first screening device 14, the second screening device and the third screening device 6 are wet screening devices.
In any of the above embodiments, it is preferable that the inner wall of the scrubber 3 is provided with a rubber layer, which can enhance the wear resistance of the scrubber 3, thereby enhancing the service life of the scrubber 3.
In any of the above embodiments, preferably, as shown in fig. 1, the coarse crusher comprises a jaw crusher 10 and a cone crusher 12, and the jaw crusher 10, the cone crusher 12 and the first screening device 14 are connected by a belt conveyor in sequence.
In any of the embodiments above, preferably the flotation reagents employed in the plurality of flotation cells include a plurality of collectors for a plurality of impurity minerals. Such as alkylamine salt cationic collectors, petroleum sulfonic acid sodium salt anionic collectors or salicylhydroxamic acid.
In any of the above embodiments, preferably, the rod mill unit, the magnetic separator unit, the scrubbing machine 3, the flotation unit and the gravity separation device 5 are sequentially connected through the material pumping device, and two adjacent flotation units in the flotation unit are connected through the material pumping device.
In the embodiment, the circulation of the mortar from the previous process to the next process can be realized through the pumping device, so that the production line is ensured. Meanwhile, the pumping device can provide certain pumping pressure, so that the flowing speed of the mortar can be ensured.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A wet preparation production line of high-purity quartz sand is characterized by comprising the following steps:
a coarse crusher set comprising a coarse crusher and a first screening device in communication with the coarse crusher;
the rod mill unit comprises a rod mill and a second screening device, the rod mill is communicated with the first screening device through a feeding control machine, and the second screening device is connected to a discharge port of the rod mill;
the magnetic separator set is connected with the discharge port of the second screening device and is used for carrying out magnetic separation treatment on the quartz mortar;
the scrubbing machine is connected with a discharge port of the magnetic separator set and is used for scrubbing the quartz mortar subjected to magnetic separation;
a plurality of flotation units, at least two of which are connected in series to form a flotation cell bank, the inlet end of the flotation cell bank being connected to the attrition scrubber and the outlet end of the flotation cell bank being detachably connected to a gravity separation device;
the gravity separation device is used for performing gravity separation on the quartz mortar subjected to the flotation treatment so as to remove heavy minerals in the quartz mortar;
the third screening device is connected with an outlet of the gravity sorting device and is used for removing quartz sand smaller than the lower limit of the required particle size in the quartz mortar;
the dehydration treatment device is connected with the third screening device and is used for dehydrating the quartz mortar screened by the third screening device to prepare quartz sand with required specification;
wherein, correspond one or more of rod mill unit, magnet separator unit, scrub machine and a plurality of flotation unit with gravity sorting unit is provided with concentration control device, concentration control device include concentration detection device and with the feedwater controlling means that concentration detection device is connected.
2. The wet process production line of high purity silica sand according to claim 1,
each flotation unit comprises a flotation machine and a size mixing tank which are connected in series, an inlet of each flotation unit is arranged on the size mixing tank, and an outlet of each flotation unit is arranged on the flotation machine.
3. The wet preparation line of high purity silica sand according to claim 2,
the concentration control device is arranged corresponding to each flotation unit, the concentration detection device of the concentration control device is arranged in the flotation machine and used for detecting the concentration of the mortar in the flotation machine, and the water supply control device of the concentration control device is connected with the flotation machine and used for supplying water into the flotation machine and adjusting the water supply amount so as to adjust the concentration of the mortar in the flotation machine.
4. The wet preparation line of high purity silica sand according to claim 2,
the slurry mixing tank is a cylinder slurry mixing tank, the inner wall of the cylinder slurry mixing tank is provided with a corrosion-resistant lining material, and the inner wall of the flotation machine is provided with the corrosion-resistant lining material.
5. The wet preparation line of high purity silica sand according to claim 1, further comprising:
and the packaging unit is connected with the dehydration treatment device and is used for packaging the prepared quartz sand with the required specification.
6. The wet preparation line of high purity silica sand according to claim 1, further comprising:
and the pickling unit is connected with the dehydration treatment device and is used for sequentially pickling, washing and drying the prepared quartz sand with the required specification or the packaged quartz sand.
7. The wet process production line of high purity silica sand according to claim 1,
the magnetic separator set comprises a plurality of wet magnetic separators which are connected through a material pumping device or by using potential difference; and/or
The gravity sorting device comprises one or two of a shaking table or a spiral chute; and/or
The dehydration treatment device comprises a high-speed centrifugal dehydrator and/or a belt filter; and/or
The first screening device, the second screening device and the third screening device are all wet screening devices; and/or
The inner wall of the scrubbing machine is provided with a rubber layer.
8. The wet preparation production line of high purity quartz sand according to any one of claims 1 to 7, characterized in that the coarse crusher comprises a jaw crusher and a cone crusher, and the jaw crusher, the cone crusher and the first screening device are connected by a belt conveyor in turn.
9. The wet preparation line of high purity quartz sand of any one of claims 1 to 7, wherein the flotation reagents employed in a plurality of flotation units include collectors for a plurality of impurity minerals.
10. The wet preparation line of high purity silica sand according to any one of claims 1 to 7,
the rod mill unit, the magnetic separator unit, the scrubbing machine, the flotation unit and the gravity separation device are sequentially connected through a material pumping device, and two adjacent flotation units in the flotation unit are connected through the material pumping device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527718A (en) * | 2022-02-25 | 2022-05-24 | 江苏鑫亿鼎石英科技股份有限公司 | Quartz sand datamation intelligent production control system |
| CN117505054A (en) * | 2024-01-05 | 2024-02-06 | 福建南方路面机械股份有限公司 | Purifying method and purifying equipment for quartz sand-containing mineral aggregate |
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2020
- 2020-12-11 CN CN202022989580.5U patent/CN214864341U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527718A (en) * | 2022-02-25 | 2022-05-24 | 江苏鑫亿鼎石英科技股份有限公司 | Quartz sand datamation intelligent production control system |
| CN114527718B (en) * | 2022-02-25 | 2024-01-09 | 江苏鑫亿鼎石英科技股份有限公司 | Quartz sand datamation intelligent production control system |
| CN117505054A (en) * | 2024-01-05 | 2024-02-06 | 福建南方路面机械股份有限公司 | Purifying method and purifying equipment for quartz sand-containing mineral aggregate |
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