CN212504617U - Artificial sand preparation system - Google Patents
Artificial sand preparation system Download PDFInfo
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- CN212504617U CN212504617U CN202021244620.7U CN202021244620U CN212504617U CN 212504617 U CN212504617 U CN 212504617U CN 202021244620 U CN202021244620 U CN 202021244620U CN 212504617 U CN212504617 U CN 212504617U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The utility model discloses an artifical sand preparation system belongs to artifical sand preparation technical field. The utility model comprises a reaction vessel, a fly ash feeding device, an alkaline activator feeding device, a maintenance bin and an air blower. A wall body of the reaction vessel is provided with a feeding port and a discharge port, and the discharge port is arranged below the feeding port; an air distribution plate is arranged in the reaction vessel, and the air distribution plate and the discharge port are at the same height; the top of the reaction vessel is provided with an exhaust port; the fly ash feeding device and the alkaline activator feeding device are both connected with the feeding port; the curing bin is connected with the discharge hole; the blower is connected with the bottom of the reaction vessel. The utility model discloses utilize fly ash and alkaline excitant reaction preparation artificial sand, dust pollution, mountain flour that can not produce traditional system sand technology appearance in the preparation process run off greatly, finished product sand quality is poor, produce waste water scheduling problem, the utility model discloses can reduce the cost of preparation of artificial sand, improve the quality of finished product sand simultaneously.
Description
Technical Field
The utility model relates to an artifical sand preparation technical field, concretely relates to artifical sand preparation system.
Background
In recent years, natural river sand resources for construction of high quality have been gradually exhausted with the rapid expansion of the amount of construction works. The disorderly digging in the large river and the long river is prohibited, serious crises are hidden in the normal shipping and the safe production of the river channel, and the flood control and disaster resistance work in China is affected very adversely, so that many projects or production enterprises use artificial sand instead of natural sand.
Artificial sand is generally rock particles that have been mined from earth, mechanically crushed, and sieved, and have a nominal particle size of less than 5 mm. The traditional artificial sand preparation process is divided into a wet sand preparation process and a dry sand preparation process. The dry sand making process is easy to generate excessive stone powder, impurities and soil in raw ore enter sand after processing, so that the powder and the soil cannot be separated, powder is seriously wrapped by coarse aggregate, the quality of concrete is influenced, the construction cost is increased, and the dust pollution is serious. The wet sand making process has the same problems that the dehydration period of the sand is long, the yield of the product sand is influenced, a needed warehouse is large, the loss amount of the stone powder of the sand is large, the sand is difficult to recover, the stone powder content of the finished product sand is low, the production wastewater causes great pollution to the environment, the water treatment cost is high, the resource recycling is difficult to realize, the water content is difficult to control, and the like.
In conclusion, the conventional sand making system has many problems, and the production process cannot be simplified, the production cost is reduced, the production efficiency is improved, and the environmental pollution is reduced under the condition of ensuring the quality of finished sand.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned problem that prior art exists, designed brand-new artifical sand preparation technology, provided an artifical sand preparation system. The utility model discloses an artificial sand preparation system is the artificial sand of direct utilization fly ash and alkaline excitant reaction preparation, in preparation artificial sand in-process, need not remove native exploitation to the rock, mechanical breakage, sieve etc, can not produce the unable separation of silt that traditional dry process technology appears, the serious scheduling problem of dust pollution, the mountain flour loss amount that can not produce the sand that traditional wet process technology appears simultaneously is big, it is difficult to retrieve, the mountain flour content of finished product sand is low, the great scheduling problem of pollution that waste water caused the environment, can reduce the cost of preparation of artificial sand, improve the quality of finished product sand simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an artificial sand production system comprising:
the wall of the reaction vessel is provided with a feeding port and a discharge port, and the discharge port is arranged below the feeding port; an air distribution plate is arranged in the reaction vessel, and the air distribution plate and the discharge port are at the same height; the top of the reaction vessel is also provided with an exhaust port;
the fly ash feeding device is connected with the feeding port; the fly ash feeding device is used for storing fly ash and supplying the fly ash to the reaction container;
the alkaline activator feeding device is connected with the feeding port; the alkaline exciting agent feeding device is used for storing an alkaline exciting agent and supplying the alkaline exciting agent to the reaction container;
the maintenance bin is connected with a discharge hole of the reaction container; and
and the blower is connected with the bottom of the reaction container.
Furthermore, the reaction vessel is provided with a heating and heat-preserving device. The reaction vessel is provided with a heating and heat-insulating device, so that a certain reaction temperature can be maintained, and the reaction of the fly ash and the alkaline activator can be completed more fully and smoothly.
Furthermore, the outer wall of the reaction vessel is provided with a heat insulation layer. The heat-insulating layer can reduce the heat loss in the reaction vessel.
Furthermore, the feeding ports comprise a plurality of fly ash feeding ports and a plurality of alkaline activator feeding ports, and the plurality of fly ash feeding ports and the plurality of alkaline activator feeding ports are distributed around the wall of the reaction vessel in a crossed manner; one fly ash feeding port is connected with one fly ash feeding device, and one alkali activator feeding port is connected with one alkali activator feeding device. The design can ensure that the fly ash and the alkaline excitant are sprayed in different directions, so that the reaction is more complete.
Further, the fly ash feeding device is connected with the fly ash feeding port through a pipeline, and an air volume adjusting valve and a centrifugal fan for feeding fly ash into the reaction container are arranged between the fly ash feeding device and the fly ash feeding port. The air quantity regulating valve can regulate the air quantity, control the flow of the fly ash and react with the alkaline activator in a more accurate ratio.
Further, the alkali activator feeding device is connected with the alkali activator feeding port through a pipeline, a flow regulating valve and a feeding pump for pumping the alkali activator are arranged between the alkali activator feeding device and the alkali activator feeding port, and a nozzle is arranged at one end of the pipeline connected with the alkali activator feeding port. The flow regulating valve can regulate the flow of the alkaline excitant and react with the fly ash in a more accurate ratio; the arrangement of the nozzle can ensure that the alkaline excitant is sprayed into the reaction vessel more uniformly for reaction, thereby improving the reaction efficiency and quality.
Furthermore, a plurality of discharge ports are arranged, a plurality of curing bins are arranged, and the discharge ports are distributed at the periphery of the air distribution plate at intervals; and the discharge hole is connected with the maintenance bin. The design can collect the geopolymer particles obtained by reaction from all directions simultaneously for maintenance, and the efficiency is improved.
Furthermore, the maintenance bin is provided with a heating and heat-preserving device. The spherical particles formed after the reaction of the fly ash and the alkaline activator enter a curing bin from a discharge hole and are cured at a certain temperature so as to improve the quality of the artificial sand product.
Furthermore, the utility model also comprises a dust collector which is connected with the exhaust port; further, the dust collector is a bag type dust collector. The dust collector is arranged to collect and recycle unreacted dust in the reaction process, and simultaneously, tail gas generated after the reaction can be treated and purified.
The utility model discloses the theory of operation of preparation artificial sand is as follows:
the artificial sand of the utility model is prepared by reacting fly ash with an alkaline activator. Fly ash is commonly called fly ash and is industrial waste discharged by thermal power plants. The fly ash is in Na2SiO3、K2SiO3Or reacting under the action of alkaline activators such as NaOH and KOH, curing at a certain temperature, depolymerizing the silicon-aluminum phase in the fly ash during curing, and polymerizing to generate an inorganic polymer, thus obtaining the high-strength fly ash-based geopolymer. Tests show that the strength of the base polymer of the fly ash prepared by the fly ash under certain conditions under the action of the alkaline excitant can reach more than 50MPa, and the strength meets the requirements of artificial sand.
The utility model has the advantages that:
the utility model discloses be provided with the reaction vessel who is used for supplying fly ash and alkaline excitant reaction, alkaline excitant feeding device, fly ash feeding device are connected with reaction vessel respectively to spout alkaline excitant and fly ash to reaction vessel respectively and react, be equipped with the heating heat preservation device in the reaction vessel simultaneously, can maintain reaction temperature, and alkaline excitant and fly ash form spherical granule after the contact reaction under the uniform temperature.
The utility model discloses be provided with the air-blower for to the interior blast air of reaction vessel, still be provided with the grid plate in reaction vessel simultaneously, the mobile state of wind in the reaction vessel can be controlled to the grid plate, makes the material be the suspension state in reaction vessel and reacts, goes on smoothly in order to ensure to react. In addition, the air distribution plate can receive spherical particles obtained by reaction in the reaction container and falling.
The utility model discloses be provided with the maintenance storehouse, after the globular granule that drops was received to the grid plate, the globular granule passes through in the discharge gate gets into the maintenance storehouse, is provided with the heating heat preservation device in the maintenance storehouse, and the maintenance obtains the fine coal ash geopolymer of high strength, artifical sand promptly under the uniform temperature of globular granule.
The utility model discloses still be provided with bag collector for collect unreacted dust, tail gas cleanup.
In conclusion, the artificial sand preparation system has simple equipment arrangement, less process flow and low preparation cost; the preparation efficiency of the artificial sand can be improved by connecting the devices, and the quality of the prepared artificial sand reaches the national standard; the utility model does not need water in the preparation process of the artificial sand, and does not produce waste liquid; the utility model does not need to remove soil, mine, mechanically crush and screen the rock in the process of preparing the artificial sand, and does not generate a series of problems in the traditional wet process and dry process; simultaneously the utility model discloses set up the dust collector, can enough retrieve the dust and carry out the reuse of resource, again can tail gas purification, environmental protection.
Drawings
FIG. 1 is a system diagram of a preferred embodiment of the present invention;
reference numbers in the drawings: 1-a reaction vessel; 2-a fly ash feeding device; 3-an alkaline activator feeding device; 4-curing the warehouse; 5-air distribution plate; 6-a blower; 7-heat preservation and insulation layer; 8-a dust collector; 91-air volume adjusting valve; 92-a flow regulating valve; 10-centrifugal fan; 11-a feed pump; 12-nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Examples
An artificial sand preparation system, as shown in fig. 1, includes a reaction container 1, four fly ash feeding devices 2 for storing fly ash and supplying fly ash to the reaction container 1, four alkali activator feeding devices 3 for storing alkali activator and supplying alkali activator to the reaction container 1, four curing chambers 4, an air distribution plate 5 and an air blower 6, and specifically includes the following components:
the wall body of the reaction container 1 is provided with a feeding port, a discharging port and a ventilation opening, the discharging port is arranged below the feeding port, and the ventilation opening is arranged at the bottom of the reaction container 1 and is positioned at one side of the discharging port, which deviates from the feeding port. The fly ash feeding device 2 and the alkaline activator feeding device 3 are both connected with the feeding port.
The blower 6 is connected with the ventilation opening through a blast pipe, and the blower 6 is used for blowing air into the reaction container 1; simultaneously be provided with in reaction vessel 1 air distribution plate 5, air distribution plate 5 is parallel with the horizontal plane, air distribution plate 5 can control the flow state of 1 interior wind of reaction vessel, makes the material be the suspended state in reaction vessel 1 and reacts, makes fly ash and vaporific alkaline excitant can more fully more even mixture to ensure that the reaction goes on smoothly, and improve reaction efficiency, air distribution plate 5 is prior art, and its application is common general knowledge in the field, does not do the perusal here.
The air distribution plate 5 is located below the feeding port and at the same height as the discharge port, so that the air distribution plate 5 can receive the falling spherical particles after the reaction of the fly ash and the alkaline activator, the spherical particles impact and push each other after falling, and the spherical particles can move towards the discharge port under the thrust of the blast of the blower 6, and finally the spherical particles are discharged from the discharge port.
The curing bins 4 are connected with the discharge ports of the reaction container 1 through pipelines, specifically, four discharge ports are arranged, and one curing bin 4 is connected with one discharge port; four the discharge gates all set up in on the wall body of reaction vessel 1 and interval distribution in 5 peripheries of aerofoil. Spherical particles generated by reaction in the reaction container 1 can enter the corresponding curing bins 4 along the discharge port through pipelines for curing, and the spherical particles can be cured to obtain the artificial sand.
In this embodiment, a heating and heat-insulating device is disposed in the reaction vessel 1, and the heating and heat-insulating device is a constant temperature heater, or the reaction vessel 1 is an electric heating reaction kettle with a heating and heat-insulating device, so as to maintain a certain reaction temperature. The outer wall of the reaction vessel 1 is provided with a heat insulation layer 7 to reduce heat loss in the reaction vessel 1.
In this embodiment, the feeding ports include a fly ash feeding port and an alkaline activator feeding port. The four fly ash feeding ports and the four alkaline activator feeding ports are arranged and distributed on the periphery of the wall body of the reaction vessel 1, specifically, the four fly ash feeding ports and the four alkaline activator feeding ports are distributed in a cross mode and are located at the same height, so that the fly ash and the alkaline activator are combined and reacted more quickly when being sprayed into the reaction vessel 1 at the same time, the reaction efficiency of the fly ash and the alkaline activator is improved, and the reaction effect is improved.
In this embodiment, the number of the fly ash feeding devices 2 is four, one fly ash feeding device 2 is communicated with one fly ash feeding port through a pipeline, an air volume adjusting valve 91 is arranged between the fly ash feeding device 2 and the fly ash feeding port, and a centrifugal fan 10 for feeding fly ash into the reaction vessel 1 is arranged, specifically, the centrifugal fan 10 is arranged at a discharge port of the fly ash feeding device 2, and the air volume adjusting valve 91 is arranged between the centrifugal fan 10 and the fly ash feeding port. The air volume regulating valve 91 can regulate the air volume, so that the flow of the fly ash is controlled, and the fly ash reacts with the alkaline activator in a more accurate ratio.
In this embodiment, the number of the alkali activator feeding devices 3 is four, and one alkali activator feeding device 3 is connected to one alkali activator feeding port; a flow rate adjusting valve 92 and a feeding pump 11 for pumping the alkali activator are arranged between the feeding device 3 for the alkali activator and the feeding port for the alkali activator, and specifically, the flow rate adjusting valve 92 is arranged between the feeding pump 11 and the feeding device 3 for the alkali activator. A nozzle 12 is arranged at one end of the pipeline connected with the feeding port of the alkaline activator, and specifically, the nozzle 12 is arranged at one end of the feeding pump 11 departing from the flow regulating valve 92. The feeding pump 11 is used for pumping the alkali activator, the flow regulating valve 92 controls the flow of the alkali activator, and the nozzle 12 can spray the alkali activator into the reaction vessel 1 in the form of mist to react with the fly ash.
In this embodiment, the curing barn 4 is provided with a heating and heat-preserving device, the heating and heat-preserving device is a jacket type heat-preserving device, that is, an electric heating jacket is sleeved on the outer wall of the curing barn 4, a resistance wire is arranged in the electric heating jacket for heating, and after spherical particles obtained by reaction in the reaction container 1 enter the curing barn 4, the curing can be performed at a certain temperature.
In this embodiment, the artificial sand preparation system further comprises a dust collector 8, an air outlet is formed in the top of the reaction container 1, and the dust collector 8 is communicated with the air outlet. The dust collector 8 is a bag type dust collector, the dust collector 8 is used for collecting unreacted dust and purifying tail gas, the dust collector 8 is connected with a dust collection fan and other accessories for collecting dust, the action principle and the setting mode are conventional technologies in the field, the functions and the setting mode are well known by persons skilled in the field, and the details are not repeated.
The utility model discloses an operating procedure as follows:
storing the fly ash in the fly ash feeding device 2, and storing the alkaline activator in the alkaline activator feeding device 3; starting the air blower 6 to blow air towards the inside of the reaction container 1, uniformly blowing the air into the reaction container 1 by the air distribution plate 5, and starting the dust collector 8; the centrifugal fan 10 sprays the fly ash in the fly ash feeding device 2 into the reaction container 1, and the air volume regulating valve 91 controls the flow of the fly ash; meanwhile, the feeding pump 11 pumps the alkaline activator in the alkaline activator feeding device 3 to the reaction vessel 1, the nozzle 12 sprays the alkaline activator into the reaction vessel 1 in a mist shape, the flow rate of the alkaline activator is controlled by the flow rate control valve 92, and the mist alkaline activator reacts with the fly ash and is combined and agglomerated into spherical particles; the spherical particles fall off due to large mass and are converged into the corresponding curing bins 4 through the discharge port for curing, and after curing is completed, the fly ash-based geopolymer, namely the artificial sand, is obtained. And subsequently, screening the artificial sand obtained after the maintenance according to the particle size of the artificial sand required by each production enterprise to obtain an artificial sand finished product with the target particle size.
It can be understood that the arrangement of the air distribution plate 5 is not limited to be parallel to the horizontal plane in this embodiment, in other embodiments, the air distribution plate 5 may be designed to deviate from the arc structure protruding from the direction of the vent, and as the air distribution plate 5 itself is a protruding arc, the spherical particles can move towards the discharge port under the guiding action of the air distribution plate 5, and finally the spherical particles are discharged through the discharge port.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equally without departing from the spirit and scope of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. An artificial sand production system, comprising:
the wall of the reaction vessel is provided with a feeding port and a discharge port, and the discharge port is arranged below the feeding port; an air distribution plate is arranged in the reaction vessel, and the air distribution plate and the discharge port are at the same height; the top of the reaction vessel is provided with an exhaust port;
the fly ash feeding device is connected with the feeding port; the fly ash feeding device is used for storing fly ash and supplying the fly ash to the reaction container;
the alkaline activator feeding device is connected with the feeding port; the alkaline exciting agent feeding device is used for storing an alkaline exciting agent and supplying the alkaline exciting agent to the reaction container;
the maintenance bin is connected with a discharge hole of the reaction container; and
and the blower is connected with the bottom of the reaction container.
2. The artificial sand production system according to claim 1, wherein: the reaction vessel is provided with a heating and heat-preserving device.
3. An artificial sand preparation system according to claim 2, wherein: and the outer wall of the reaction container is provided with a heat insulation layer.
4. The artificial sand production system according to claim 1, wherein: the feeding port comprises a plurality of fly ash feeding ports and a plurality of alkaline activator feeding ports, and the fly ash feeding ports and the alkaline activator feeding ports are distributed around the wall of the reaction vessel in a crossed manner; one fly ash feeding port is connected with one fly ash feeding device, and one alkali activator feeding port is connected with one alkali activator feeding device.
5. An artificial sand preparation system according to claim 4, wherein: the fly ash feeding device is connected with the fly ash feeding port through a pipeline, and an air volume adjusting valve and a centrifugal fan for feeding fly ash into the reaction container are arranged between the fly ash feeding device and the fly ash feeding port.
6. An artificial sand preparation system according to claim 4, wherein: the alkali activator feeding device is connected with the alkali activator feeding port through a pipeline, a flow regulating valve and a feeding pump for pumping the alkali activator are arranged between the alkali activator feeding device and the alkali activator feeding port, and a nozzle is arranged at one end of the pipeline connected with the alkali activator feeding port.
7. The artificial sand production system according to claim 1, wherein: the plurality of discharge ports are arranged, the plurality of curing bins are arranged, and the discharge ports are distributed at the periphery of the air distribution plate at intervals; and the discharge hole is connected with the maintenance bin.
8. The artificial sand production system according to claim 1, wherein: the curing bin is provided with a heating and heat-insulating device.
9. An artificial sand production system according to any one of claims 1 to 8, wherein: the artificial sand preparation system further comprises a dust collector, and the dust collector is connected with the exhaust port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244620.7U CN212504617U (en) | 2020-06-29 | 2020-06-29 | Artificial sand preparation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244620.7U CN212504617U (en) | 2020-06-29 | 2020-06-29 | Artificial sand preparation system |
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| Publication Number | Publication Date |
|---|---|
| CN212504617U true CN212504617U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021244620.7U Active CN212504617U (en) | 2020-06-29 | 2020-06-29 | Artificial sand preparation system |
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| CN (1) | CN212504617U (en) |
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2020
- 2020-06-29 CN CN202021244620.7U patent/CN212504617U/en active Active
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