CN210846721U - System for preparing machine-made sand - Google Patents
System for preparing machine-made sand Download PDFInfo
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- CN210846721U CN210846721U CN201921853281.XU CN201921853281U CN210846721U CN 210846721 U CN210846721 U CN 210846721U CN 201921853281 U CN201921853281 U CN 201921853281U CN 210846721 U CN210846721 U CN 210846721U
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Abstract
The application relates to a machine-made sand preparation system, and belongs to the technical field of machine-made sand preparation. The application provides a machine-made sand preparation system, including former feed bin, first sieving mechanism, system sand device, finished product storehouse and conveying mechanism, the feed inlet of first sieving mechanism, the feed inlet of system sand device all link to each other with former feed bin, and conveying mechanism is used for carrying the oversize material of first sieving mechanism to system sand device, and the finished product storehouse is used for collecting the screening material of first sieving mechanism and the machine-made sand that system sand device made. In the machine-made sand preparation system, the first screening device and the sand making device work in parallel, the first screening device screens out coarse particles and fine particles in a screening mode, only the coarse particles are sent into the sand making device, and the coarse particles and the existing original tailing stone chips in the sand making device are crushed and refined together, so that the machine-made sand preparation system has high sand making efficiency.
Description
Technical Field
The application relates to the technical field of machine-made sand preparation, in particular to a machine-made sand preparation system.
Background
The machine-made sand has the advantages of high strength, good grading continuity, stable property and the like, is prepared by taking tailings and stone chips as raw materials and using a sand making machine and other accessory equipment, and is mainly applied to preparing concrete with the strength grade of C60 or below.
However, the sand grains in the raw tailing chips are not of the same size and contain a portion of fine particles. If the part of fine materials is completely sent into the sand making machine, the raw tailing stone chips in the sand making device are excessively crushed, so that the powder yield of the sand making device is increased, and the sand making efficiency of the whole sand making device is reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, the machine-made sand preparation system can reduce the proportion of fine granules in the raw tailing stone chips entering the sand making device, and therefore has high sand making efficiency.
The mechanism sand preparation system of this application on one side embodiment, including former feed bin, first sieving mechanism, system sand device, finished product storehouse and conveying mechanism, the feed inlet of first sieving mechanism, the feed inlet of system sand device all link to each other with former feed bin, and conveying mechanism is used for carrying the oversize material of first sieving mechanism to system sand device, and the finished product storehouse is used for collecting the screening material of first sieving mechanism and the mechanism sand that system sand device made.
For only using the system sand device or the first sieving mechanism and the system sand device form of arranging of establishing ties, in the mechanism sand preparation system of this application one aspect embodiment, former tailing stone dust is stored in former feed bin, first sieving mechanism and system sand device parallel operation. The first screening device screens out coarse particles and fine particles in a screening mode, only the coarse particles are sent to the sand making device, and the coarse particles and the existing raw tailing stone chips in the sand making device are crushed and refined. In the working process of the machine-made sand preparation system, the proportion of fine granules in the raw tailing stone chips entering the sand making device is reduced, and the capacity of the sand making device is reasonably utilized, so that the machine-made sand preparation system has higher sand making efficiency.
In addition, the machine-made sand preparation system according to an embodiment of an aspect of the present application has the following additional technical features:
according to some embodiments of the application, first sieving mechanism includes first feed inlet, first oversize material discharge gate and first sieve unloading discharge gate, and system sand device includes second feed inlet and system sand discharge gate, and first feed inlet all links to each other with former feed bin with the second feed inlet, and first sieve unloading discharge gate all links to each other with the finished product storehouse with system sand discharge gate. The raw tailing stone chips are stored in a raw material bin, the raw tailing stone chips with a first flow rate enter a first screening device through a first feeding hole, coarse particles and fine particles are obtained after screening, the coarse particles are sent to a sand making device, and the fine particles are sent to a finished product bin. Meanwhile, the raw tailing stone chips at the second flow rate enter a sand making device through a second feeding hole, are crushed and refined together with coarse particles in the raw tailing stone chips at the first flow rate, and are sent into a finished product bin through a sand making discharge hole. The arrangement form is simple in structure, installation is facilitated, and the sand making efficiency of the machine-made sand preparation system can be effectively improved.
According to some embodiments of the application, system sand device includes system sand machine and second sieving mechanism, and the second feed inlet is arranged in system sand machine, and system sand machine links to each other with the second sieving mechanism, and the second sieving mechanism includes second oversize material discharge gate, and second oversize material discharge gate is linked together with system sand machine, and system sand discharge gate arranges in the second sieving mechanism and is used for the sieve unloading of ejection of compact second sieving mechanism. The sand making machine is used for crushing and refining the original tailings, the second screening device is used for carrying out closed-loop treatment on the stone chips crushed and refined by the crusher, secondary crushing and refining are carried out on the second oversize materials which do not meet the requirements, and only the second oversize materials which meet the requirements are output, so that the quality of the machine-made sand made by the sand making device is ensured.
According to some embodiments of the application, the system sand device still includes the lifting machine, and the head of lifting machine links to each other with second oversize material discharge gate, and the terminal leads to system sand machine. For the form of artifical transport, this kind of form of arranging can improve conveying efficiency, and then improves the system sand efficiency of mechanism sand preparation system.
According to some embodiments of the application, the sand making machine is a vertical shaft impact crusher. The sand making machine has the advantages of high crushing efficiency, simple structure, low operation cost and the like, and is suitable for a crushing process with small particle size.
According to some embodiments of the present application, the second screening device is an air screen or a vibrating screen. The air sieve or the vibrating sieve can effectively extract powder in the stone chip material crushed and refined by the sand making machine, so that the blockage of the screen is further relieved, and the screening efficiency is improved.
According to some embodiments of the present application, the second screening device comprises a second screen having an aperture size of 3-4 mm. The second screen is used for screening the crushed and refined raw stone chips in the sand making machine, and aims to screen out fine granules with the grain size of 0-2.5 mm. The aperture size of the second screen is slightly larger than 2.5mm, so that the second screen can be effectively prevented from being blocked.
According to some embodiments of the present application, the first screening device comprises a first screen having an aperture size of 3-4 mm. The first screen is used for screening the raw tailing stone chips with the first flow rate, and aims to screen out fine particles with the particle size of 0-2.5 mm. The aperture size of the first screen is slightly larger than 2.5mm, and the first screen can be effectively prevented from being blocked.
According to some embodiments of the application, the first screen is arranged in an inclined manner, the first feed inlet corresponds to the upper end of the first screen, and the first oversize discharge outlet corresponds to the lower end of the first screen. This kind of arrangement form does benefit to first screen cloth fully and the former tailing stone dust contact of first flow, and then improves screening efficiency.
According to some embodiments of the present application, the first screening device is a vibrating screen. The vibrating screen has high screening efficiency and low operation cost.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic layout of components of a machine-made sand production system as provided by an embodiment of an aspect of the present application;
FIG. 2 is a logic diagram of the working principle of a machine-made sand preparation system according to an embodiment of an aspect of the present application;
fig. 3 is a logic diagram of an operation principle of a sand making device of a machine-made sand preparation system according to an embodiment of an aspect of the present application.
Icon: 100-machine-made sand preparation system; 10-a first screening device; 11-a first screen; 111-a first end; 112-a second end; 12-a first feed port; 13-first oversize discharge; 14-first sieve discharge; 20-a sand making device; 21-a sand making machine; 211-a second feed port; 212-discharging port of sand making machine; 213-fourth feed port; 22-a second screening device; 221-a third feed port; 222-second oversize discharge; 223-a second sieve discharge port; 224-a second screen; 23-a hoist; 30-a raw material bin; 40-finished product warehouse; 50-a conveying mechanism; 200-raw tailing stone chips; 300-finished product machine-made sand.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, a machine-made sand preparation system 100 according to an embodiment of the present application includes a first screening device 10, a sand making device 20, a raw material bin 30, a finished product bin 40, and a conveying mechanism 50.
Wherein, first sieving mechanism 10 includes first feed inlet 12, and system sand device 20 includes second feed inlet 211, and first feed inlet 12, second feed inlet 211 all link to each other with former feed bin 30. After entering the first screening device 10, the raw tailing chips 200 are screened into a first oversize material and a first undersize material. The conveying mechanism 50 is used for conveying the first oversize material to the sand making device 20, the finished product bin 40 is used for collecting the machine-made sand produced by the first oversize material and sand making device 20, and the machine-made sand produced by the first oversize material and sand making device 20 is mixed to form the finished product machine-made sand 300.
In the machine-made sand preparation system 100 of an embodiment of the application, the sand making device 20 is arranged in parallel with the first screening device 10, the first screening device 10 screens the raw tailing chips 200, screens out coarse materials in the raw tailing chips 200 and sends the coarse materials to the sand making device 20 through the conveying mechanism 50, and sends fine materials in the raw tailing chips 200 to the finished product bin 40. As will be readily appreciated, the first screening device 10 is capable of filtering out fine material from the raw tailings fines 200, thereby increasing the proportion of coarse material from the raw tailings fines 200 entering the sand making device 20. The finer the granularity of the crushed material is, the greater the crushing resistance of the material is, and the greater the crushing difficulty is. The sand making efficiency of the sand making machine 21 can be improved by improving the coarse material proportion of the raw tailing stone chips 200 entering the sand making device 20. The machine-made sand preparation system 100 has high sand preparation efficiency by working in parallel with the first screening device 10.
The structure and mutual positional relationship of the components of the machine-made sand production system 100 of an aspect of the present application are described below.
In the present description, the raw tailings stone chips 200 and the finished machine-made sand 300 are two types of stones of different grain sizes, respectively. The raw tailing stone chips 200 are commercially common raw stone chips, and generally comprise coarse particles and fine particles, wherein the fine particles also comprise a part of powder. As an exemplary form, the raw tailings stone chips 200 are tuff tailings stone chips in the 0-5mm particle size range, including coarse and fine particles; the finished machine-made sand 300 is a fine material, and the machine-made sand preparation system 100 of the embodiment of the present application can crush and screen the raw tailing chips 200 to obtain the finished machine-made sand 300.
In some embodiments herein, coarse refers to stone chips in the size range of 2.5-5mm, fine refers to stone chips in the size range of 0-2.5mm, and fines refers to stone chips in the size range of 0-0.075 mm; in other embodiments, the range of particle sizes of the raw tailings fines 200, coarse particles, fine particles, and finished manufactured sand 300 may be varied accordingly.
Referring to fig. 1, a first screening device 10 is used for screening raw tailing chips 200 and screening out a first oversize material and a first undersize material. Wherein, the first oversize material is coarse material, and the first undersize material is fine material. The first screening device 10 is further described below.
The first screening device 10 includes a first housing, a first screen 11, a first feed inlet 12, a first oversize material outlet 13, and a first undersize material outlet 14. Wherein the first screen 11 is arranged within the first housing and divides the inner cavity of the first housing into a first screen upper area and a first screen lower area. First casing is arranged in to first feed inlet 12, first oversize material discharge gate 13, first sieve unloading discharge gate 14 equipartition, and first feed inlet 12 and first oversize material discharge gate 13 link up with first sieve upper zone, and first sieve unloading discharge gate 14 link up with first sieve lower zone.
The first oversize material outlet 13 is connected with the sand making device 20, and the first oversize material outlet 14 is connected with the finished product bin 40.
As can be easily understood, the raw tailing chips 200 are separated into a first oversize material and a first undersize material after being screened by the first screen mesh 11, wherein the first oversize material is retained in the first oversize zone, and the first undersize material passes through the first screen mesh 11 and enters the first undersize zone.
Wherein the first screen 11 is arranged obliquely and has an upper first end 111 and a lower second end 112. The first feed inlet 12 corresponds to the first end 111 and the first oversize discharge outlet 13 corresponds to the second end 112. As will be readily appreciated, the raw tailings fines 200 enter the first oversize zone from the first inlet 12 and are screened by gravity while reaching the second end 112, where the coarse particles collect to facilitate their exit from the first oversize outlet 13.
In some embodiments of the present application, the first screen 11 has a pore size in the range of 3-4 mm. Preferably, the first screen 11 has a pore size of 3mm, which is capable of allowing fine particles of 0-2.5mm to pass through without clogging. As will be readily appreciated, the aperture of the first screen 11 is slightly larger than the maximum particle size of the fine particles, so that the raw tailing chips 200 can be prevented from blocking the first screen 11, thereby ensuring the screening efficiency.
In other embodiments, the first screen 11 may have a square hole with a width of 2.5mm and a length of 4mm, which can allow fine particles to pass through without blocking.
In some embodiments of the present application, the first screening device 10 is a vibratory screen, such as a circular vibratory screen or a linear vibratory screen. Preferably, the first screening device 10 is a high-frequency screen to improve screening efficiency, and further improve sand making efficiency. Since the vibrating screen is a mature device, the structure of the first screening device 10 will not be further described, and only the connection relationship between the first screening device 10 and other components is given.
The sand making device 20 can crush and refine the raw tailing chips 200 to obtain machine-made sand meeting the requirements, and the sand making machine 21 and the second screening device 22 are further described below.
Referring to fig. 1, the sand making apparatus 20 includes a sand making machine 21 and a second screening apparatus 22.
The sand making machine 21 is used for crushing and refining the coarse particles, and the sand making machine 21 comprises a sand making machine body, a second feeding hole 211, a sand making machine discharging hole 212 and a fourth feeding hole 213. Second feed inlet 211 arranges in the upside of system sand machine body, and system sand machine discharge gate 212 arranges in the downside of system sand machine body. The second feeding hole 211 is connected with the raw material bin 30 and the first oversize material discharging hole 13, and the sand making machine discharging hole 212 is connected with the second screening device 22. The fourth feed port 213 is arranged on the upper side of the sand maker body, and the fourth feed port 213 is used for being connected with a second oversize material discharge port 222 to be described below.
In some embodiments of the present application, the sand making machine 21 is a vertical shaft impact crusher, the vertical shaft impact crusher has a crushing cavity inside, and the raw tailing chips 200 and the first oversize material enter into an impeller rotating at a high speed to form a vortex type to collide and rub with each other for multiple times in the impeller and a casing to be crushed. The sand making machine has the advantages of high crushing efficiency, simple structure, low operation cost and the like, and is suitable for a crushing process with small particle size.
The second screening device 22 is used for screening out a part of coarse particles in the stone chips which are crushed and refined by the sand making machine 21 and sending the part of coarse particles into the sand making machine 21 again for crushing and refining.
The second screening device 22 includes a second housing, a third feed port 221, a second oversize discharge port 222, a second undersize discharge port 223, and a second screen 224.
Wherein the second screen 224 is disposed within the second housing and divides the interior cavity of the second housing into a second upper screen region and a second lower screen region. The third feed port 221, the second oversize material discharge port 222 and the second undersize material discharge port 223 are uniformly distributed in the second shell, the third feed port 221 and the second oversize material discharge port 222 are communicated with the second oversize area, and the second undersize material discharge port 223 is communicated with the second undersize area. As can be easily understood, the second sieve discharge port 223 is a sand making discharge port of the whole sand making device 20.
The third feeding port 221 is connected with the discharging port 212 of the sand making machine. It will be readily appreciated that under the screening of the second screen 224, the crushed and refined stone waste material from the sand maker 21 is divided into a second oversize material and a second undersize material, wherein the second oversize material is retained in the second oversize zone and the second undersize material passes through the second screen 224 and into the second undersize zone.
The second oversize material outlet 222 is connected with the sand making machine 21, and the second oversize material outlet 223 is connected with the finished product bin 40. As can be easily understood, the second oversize material is coarse material, and is sent into the sand making machine 21, mixed with the existing raw tailing stone chips 200 in the sand making machine 21, and crushed and refined again; the second screened material is a fine material and is sent to a finished product bin 40.
In some embodiments of the present application, the second screen 224 has a pore size of 3-4mm, which is capable of allowing fine particles of 0-2.5mm to pass through without clogging. As will be readily appreciated, the aperture of the second screen 224 is slightly larger than the maximum particle size of the fine particles, so as to prevent the raw tailing chips 200 from blocking the second screen 224, thereby ensuring the screening efficiency. In other embodiments, the second screen 224 may have a square hole with a width of 2.5mm and a length of 4mm, which allows fine particles to pass through without clogging.
Further, the second screening device 22 is an air screen or a vibrating screen. The air screen combines the winnowing technology and the screening technology into a whole, can effectively extract powder in the broken and refined stone chip materials of the sand making machine 21, relieves the blockage of the screen mesh, and improves the screening capacity and the screening efficiency. While the vibrating screen has higher screening efficiency and productivity, the second screening device 22 is configured as a vibrating screen, which is beneficial to improving the sand making efficiency. Similar to the first screening apparatus 10, the second screening apparatus 22 may be configured as a circular shaker or high frequency screen and the second screen 224 may be arranged at an incline.
The sand making device 20 further comprises a lifter 23, and the lifter 23 is arranged between the second oversize material outlet 222 and the fourth feed inlet 213, and is used for lifting the second oversize material and inputting the lifted second oversize material into the sand making machine 21.
The raw material bin 30 is internally piled with raw tailing stone chips 200, and the raw material bin 30 is communicated with the first feeding hole 12 and the second feeding hole 211.
Optionally, the material bin 30 and the second feed inlet 211 are also connected by a lift 23. In the actual sand making process, the second feed inlet 211 and the fourth feed inlet 213 of the sand making machine 21 are generally higher than the raw material bin 30 and the second screening device 22, the second oversize material and the raw tailing stone chips 200 are lifted by the hoister 23 and sent into the sand making machine 21, so that the conveying efficiency of the materials can be improved, and the sand making efficiency is improved.
The finished product bin 40 is used to collect the first sifted material and the second sifted material, which together form the finished manufactured sand 300.
It will be readily appreciated that in a continuous sand making process, it is necessary to replenish the raw material bunker 30 with new raw tailings 200 and to transport the finished machine sand 300, which is continuously accumulated in the finished product bunker 40, out in time.
The conveying mechanism 50 is used for conveying the first oversize material to the second feed port 211. In some embodiments of the present application, the conveying mechanism 50 is a belt conveyor, which not only has low running cost, but also has high conveying efficiency.
Similarly, the belt conveyors with corresponding specifications are used for conveying the stone scraps between the raw material bin 30 and the first feeding hole 12, between the first screening material outlet 14 and the finished product bin 40, and between the second screening material outlet 223 and the finished product bin 40.
Referring to fig. 1 and 2, the mechanical sand preparing system 100 operates as follows:
raw tailing stone chips 200 at a first flow rate enter a first feeding hole 12 of a first screening device 10 from a raw material bin 30 and are screened into first oversize materials and first undersize materials, wherein the first oversize materials are coarse particles, and the first undersize materials are fine particles;
under the conveying of the conveying mechanism 50, the first oversize material leaves the first oversize area from the first oversize material outlet 13 and enters the sand making device 20 from the second inlet 211;
the first sifting material enters the finished product bin 40 from a first sifting material outlet 14;
the raw tailing stone chips 200 at the second flow rate enter the second feeding hole 211 from the raw material bin 30;
in the sand making device 20, the first oversize material and the raw tailing stone chips 200 with the second flow rate are mixed, crushed and refined, and the second undersize material is obtained after secondary screening;
the second screen material leaves the sand making device 20 from a second screen material outlet 223 and enters the finished product bin 40;
the finished product bin 40 is filled with a first screen material and a second screen material, which are mixed together to form the finished product machine-made sand 300.
Optionally, a powder removing device is disposed between the second screen material discharging port 223 and the finished product bin 40, and the second screen material passes through the powder removing device to remove powder therein, so as to obtain a second screen material concentrate, and then enters the finished product bin 40. It is easy to understand that the second screen material concentrate and the first screen material are mixed in the finished product bin 40, which effectively reduces the powder ratio in the finished product machine sand 300, i.e., improves the quality of the finished product machine sand 300.
Further, a first flow control device is arranged between the raw material bin 30 and the first screening device 10, and a second flow control device is arranged between the raw material bin 30 and the sand making machine 21. By controlling the flow ratio of the first flow of raw tailings fines 200 to the second flow of raw tailings fines 200, the ratio of the second undersize concentrate to the first undersize concentrate entering the finished product bin 40 per unit time can be controlled, thereby controlling and adjusting the quality of the finished product manufactured sand 300. It will be readily appreciated that the higher the ratio of the second flow rate of raw tailings fines 200 to the first flow rate of raw tailings fines 200 per unit time, the higher the quality of the finished manufactured sand 300. As an example form, the first and second flow control devices may each be a vibratory feeder.
Referring to fig. 1 and 3, the working principle of the sand making device 20 is further explained as follows:
the raw tailing stone chips 200 with the second flow rate enter a second feeding hole 211 of the sand making machine 21 from the raw material bin 30;
the raw tailing stone chips 200 at the first flow rate pass through the first screening device 10 to obtain first oversize materials, and the first oversize materials are conveyed by the conveying mechanism 50 to enter the second feeding hole 211;
the raw tailing stone chips 200 and the first oversize material at the second flow rate are crushed and refined in the sand making machine 21 together, the obtained stone chips leave the sand making machine 21 from a discharge port 212 of the sand making machine, and enter a second screening device 22 from a third feed port 221;
in the second screening device 22, the crushed and refined stone chips are screened and divided into a second oversize material and a second undersize material, wherein the second oversize material is coarse particles, and the second undersize material is fine particles;
the second oversize material leaves the second oversize area from a second oversize material outlet 222, enters the sand making machine 21 from a fourth inlet 213, and is crushed and refined again together with the existing stone chips in the sand making machine 21;
the second screen material exits the second screen lower region from second screen material outlet 223 and enters finished product bin 40.
In the finished product bin 40, the second screened material and the first screened material in the raw tailing ballast 200 of the first flow rate are both fine grain materials, and the fine grain materials and the first screened material together form the finished product machine-made sand 300.
In the sand making process of the machine-made sand preparation system 100, the raw tailings at the first flow rate continuously enter the first screening device 10 and screen out the first screening material, and the raw tailings stone chips 200 at the second flow rate continuously enter the sand making machine 21 and are screened by the second screening device 22 to obtain the second screening material. Meanwhile, the first oversize material screened from the raw tailing stones with the first flow is also sent to the sand making machine 21, the proportion of coarse particles in stone chip components in the sand making machine 21 is increased, the crushing process is facilitated, and the sand making efficiency of the sand making machine 21 can be improved.
Under the condition of treating the same flow rate of the raw tailings, compared with a sand making system only using the sand making device 20 or a sand making system in which the first screening device 10 and the sand making device 20 are connected in series, the machine-made sand preparation system 100 of the embodiment of the present application has higher sand making efficiency.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
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. The utility model provides a machine-made sand preparation system, its characterized in that includes former feed bin, first sieving mechanism, system sand device, finished product storehouse and conveying mechanism, the feed inlet of first sieving mechanism the feed inlet of system sand device all with former feed bin links to each other, conveying mechanism is used for with the oversize material of first sieving mechanism is carried extremely system sand device, the finished product storehouse is used for collecting the screen unloading of first sieving mechanism with the machine-made sand that system sand device made.
2. The machine-made sand preparation system of claim 1, wherein the first screening device comprises a first feed port, a first oversize discharge port and a first undersize discharge port, the sand making device comprises a second feed port and a sand making discharge port, the first feed port and the second feed port are both connected with the raw material bin, and the first undersize discharge port and the sand making discharge port are both connected with the finished product bin.
3. The machine-made sand preparation system of claim 2, wherein the sand making device comprises a sand making machine and a second screening device, the second feed inlet is arranged on the sand making machine, the sand making machine is connected with the second screening device, the second screening device comprises a second oversize material discharge port, the second oversize material discharge port is communicated with the sand making machine, and the sand making discharge port is arranged on the second screening device and used for discharging the undersize material of the second screening device.
4. The machine-made sand preparation system of claim 3 wherein the sand making apparatus further comprises a hoist connected at its start end to the second oversize material outlet and at its end to the sand making machine.
5. The machine-made sand preparation system of claim 3 wherein the sand making machine is a vertical shaft impact crusher.
6. The machine-made sand production system of claim 3, wherein the second screening device is an air screen or a vibratory screen.
7. The machine-made sand preparation system of claim 3 wherein the second screening device comprises a second screen having an aperture gauge of 3-4 mm.
8. The machine-made sand preparation system of claim 2 wherein the first screening device comprises a first screen having an aperture gauge of 3-4 mm.
9. The machine-made sand preparation system of claim 8 wherein the first screen is arranged at an incline, the first feed inlet corresponding to an upper end of the first screen, and the first oversize material outlet corresponding to a lower end of the first screen.
10. The machine-made sand production system of claim 1, wherein the first screening device is a shaker screen.
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| CN201921853281.XU CN210846721U (en) | 2019-10-31 | 2019-10-31 | System for preparing machine-made sand |
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| CN201921853281.XU CN210846721U (en) | 2019-10-31 | 2019-10-31 | System for preparing machine-made sand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457817A (en) * | 2021-07-30 | 2021-10-01 | 邯郸浩翔新型建材有限公司 | Fineness modulus control system of mechanism sand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457817A (en) * | 2021-07-30 | 2021-10-01 | 邯郸浩翔新型建材有限公司 | Fineness modulus control system of mechanism sand |
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