CN218486547U - Preparation mine is with filling coarse aggregate system - Google Patents
Preparation mine is with filling coarse aggregate system Download PDFInfo
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- CN218486547U CN218486547U CN202222913405.7U CN202222913405U CN218486547U CN 218486547 U CN218486547 U CN 218486547U CN 202222913405 U CN202222913405 U CN 202222913405U CN 218486547 U CN218486547 U CN 218486547U
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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
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Abstract
The utility model discloses a preparation mine is with filling coarse aggregate system, include: the device comprises a raw material bin, a conveying belt, a spraying system, granulation equipment and a drying and grading vibrating screen; the raw material bin is connected to the inlet of the granulating device through the conveying belt, and the outlet of the granulating device is connected to the inlet of the drying and grading vibrating screen; the drying and grading vibrating screen is internally provided with: the first screen and the second screen are inclined in the same direction; the second screen is positioned above the first screen, and the aperture of the second screen is larger than that of the first screen; the inlet pair of the drying and grading vibrating screen is positioned at the high-level end of the second screen cloth; the drying and grading vibrating screen is provided with: a second drop chamber having an inlet pair at a lower end of the first screen. The semi-hydrated phosphogypsum filling coarse aggregate produced by the scheme has the excellent characteristics of low crushing value, high strength and low pulverization rate.
Description
Technical Field
The utility model relates to a mining equipment technical field, in particular to preparation mine is with filling coarse aggregate system.
Background
At present, the filling coarse aggregate for mines is mainly prepared from rod frosting, barren rocks, river sand and gobi aggregate, the preparation cost of the aggregate is high (the aggregate is mostly crushed by a crusher), and the finished product edges and corners obtained by processing and crushing the aggregate are sharp, so that the abrasion of the filling conveying pipeline is large and the conveying resistance of slurry is greatly improved when the filling coarse aggregate is used for filling.
The filling slurry is doped with the coarse aggregate with a proper proportion (the particle size range of the coarse aggregate suitable for pipeline transportation is 5-20 mm), so that the strength of the filling body can be obviously improved, and the cost of the cementing material is reduced. Because phosphogypsum hemihydrate is in a metastable state, the phosphogypsum hemihydrate is very easy to be converted into dihydrate gypsum to lose the gelling activity. The dihydrate gypsum used as the filling aggregate has the characteristics of being weakened into slurry when meeting water due to fine particles, has small permeability coefficient, has a retarding effect on cement, and is not an ideal filling material. If the semi-hydrated gypsum is pelletized before hydration of the semi-hydrated gypsum is finished, the semi-hydrated gypsum or the compounded aged gypsum and the phosphate tailings are prepared into the filling aggregate with strength, so that the strength of a filling body can be greatly improved, and more solid wastes are consumed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a preparation mine is with filling coarse aggregate system, the semi-hydrated phosphogypsum filling coarse aggregate of production possesses the crushing value low, intensity is high, the good characteristics that the pulverization rate is low.
In order to achieve the above object, the utility model provides a following technical scheme:
a system for preparing a mine fill coarse aggregate, comprising: the device comprises a raw material bin, a conveying belt, a spraying system, granulation equipment and a drying and grading vibrating screen;
the raw material bin is connected to the inlet of the granulating device through the conveying belt, and the outlet of the granulating device is connected to the inlet of the drying and grading vibrating screen;
the drying and grading vibrating screen is internally provided with: the first screen and the second screen are inclined in the same direction; the second screen is positioned above the first screen, and the aperture of the second screen is larger than that of the first screen;
the inlet pair of the drying and grading vibrating screen is positioned at the high-level end of the second screen mesh; the drying and grading vibrating screen is provided with: a second drop chamber having an inlet pair located at a low end of the first screen.
Preferably, the second blanking chamber is provided with a second material baffle plate;
the top end of the second baffle plate abuts against the bottom of the second screen.
Preferably, the first screen is parallel to the second screen, and the inclined included angles between the first screen and the second screen and the horizontal direction are both 15-20 degrees;
and/or the aperture of the first screen is 5mm, and the aperture of the second screen is 20mm;
and/or the length of the first screen is 3m, and the length of the second screen is 5m.
Preferably, the method further comprises the following steps: a finished product storage yard;
the finished product storage yard is arranged at an outlet of the second blanking chamber.
Preferably, the spraying system comprises: a lime milk preparation pool, a flowmeter and a spraying device;
a liquid inlet of the spraying device is connected with the lime milk preparation tank, and a liquid outlet of the spraying device is connected with the granulation equipment;
the flow meter is connected between the lime milk preparation pool and the granulation equipment.
Preferably, the method further comprises the following steps: a drying fan;
and the air outlet of the drying fan is arranged at the inlet of the drying and grading vibrating screen and is positioned below the first screen.
Preferably, the dry classification vibrating screen is further provided with: a first blanking chamber and a blade crusher;
the inlet of the first blanking chamber is opposite to the lower end of the second screen, and the blade crusher is arranged in the first blanking chamber.
Preferably, the method further comprises the following steps: a first semi-finished product yard;
the first semi-finished product storage yard is arranged at an outlet of the first blanking chamber.
Preferably, the dry classification vibrating screen is further provided with: a third blanking chamber;
and the inlet of the third blanking chamber is arranged at the bottom of the first screen and is close to the low end of the first screen.
Preferably, the method further comprises the following steps: the second semi-finished product storage yard is arranged at an outlet of the three blanking chambers;
and/or a third material baffle plate is arranged in the third blanking chamber, and the top end of the third material baffle plate is abutted against the bottom of the first screen.
According to the above technical scheme, the utility model provides a preparation mine is with filling coarse aggregate system mainly utilizes semi-hydrated gypsum gelatinization characteristic to combine this system to fill the coarse aggregate preparation, and the spherical granule of the coarse aggregate of filling that the granulation equipment obtained adds to the filling ground paste in with appropriate proportion and can effectively promote obturator intensity, because the gypsum ball outward appearance is globular transport more easily simultaneously, compares in the coarse aggregate of edges and corners shape, and it does not basically cause the pipe wear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a coarse aggregate filling system for preparing mines provided by the embodiment of the utility model.
Wherein, 1 is a raw material bin, 2 is a conveying belt, 3 is a lime milk preparation pool, 5 is a flow meter, and 6 is granulation equipment;
a drying and grading vibrating screen 7, a first screen 71, a second screen 72, a first blanking chamber 73, a second blanking chamber 74, a second retainer plate 741, a third blanking chamber 75, a third retainer plate 751 and a blade crusher 76;
8 is a drying fan, 91 is a first semi-finished product storage yard, 92 is a finished product storage yard, and 93 is a second semi-finished product storage yard.
Detailed Description
As mentioned in the background, the disadvantages of the prior art solutions: (1) the preparation of the filling coarse aggregate is generally broken by a machine, the manufacturing cost is too high, and the coarse aggregate is used for filling a dead zone and is easy to cause pipeline abrasion and aggravate; (2) the granulation by using the phosphogypsum is often applied to the field of cement retarders, and the obtained strength is low; (3) the prior art does not specially aim at the preparation of coarse aggregate by semi-hydrated phosphogypsum to form a systematic process flow.
In view of the above, the utility model provides a preparation mine is with filling coarse aggregate system has following advantage:
(1) The process flow is simple and continuous;
(2) The obtained filling coarse aggregate has high strength and low pulverization rate;
(3) The filling cost can be reduced by filling the mine, and the pipeline is hardly abraded.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.
The embodiment of the utility model provides a preparation mine is with filling coarse aggregate system, include: the device comprises a raw material bin 1, a conveying belt 2, a spraying system, granulation equipment 6 and a drying and grading vibrating screen 7, wherein the structure of the device can be shown in figure 1;
wherein, the raw material bin 1 is connected with the inlet of a granulation device 6 through a conveyer belt 2, and the outlet of the granulation device 6 is connected with the inlet of a drying and grading vibrating screen 7;
the drying and grading vibration screen 7 is internally provided with: a first screen 71 and a second screen 72 inclined in the same direction; the second screen 72 is positioned above the first screen 71, and the aperture of the second screen 72 is larger than that of the first screen 71;
the inlet pair of the drying and classifying vibration screen 7 is positioned at the high-level end of the second screen 72; this dry grading shale shaker 7 is equipped with: a second blanking chamber 74, the inlet pair of the second blanking chamber 74 being located at the lower end of the first screen 71.
According to the technical scheme, the embodiment of the utility model provides a preparation mine is with filling coarse aggregate system mainly utilizes the gypsum hemihydrate gelatinization characteristic to combine this system to fill the coarse aggregate preparation, and the spherical granule of filling coarse aggregate that granulation equipment 6 obtained adds in proper proportion can effectively promote the obturator intensity to the filling ground paste, because the gypsum ball outward appearance is that the globular is carried more easily simultaneously, compares in the coarse aggregate of edges and corners shape, and it does not basically cause the pipeline wearing and tearing; in addition, in the drying and classifying vibrating screen 7, the filling aggregate (the outer diameter is between two screen mesh apertures) which is finally output through the second blanking chamber 74 and accords with classification between the second screen mesh 72 and the first screen mesh 71 is adopted so as to meet the process requirement of the scheme. It should be noted that the system is not limited to the preparation of the filling aggregate by the semi-hydrated phosphogypsum, and can also be used for the preparation of semi-hydrated gypsum, aged gypsum, semi-hydrated gypsum and tailing balling, and can also be applied to the preparation of other materials.
Further, the second blanking chamber 74 is provided with a second material blocking plate 741, and the structure of the second material blocking plate can be as shown in fig. 1;
the top end of the second material blocking plate 741 abuts against the bottom of the second screen 72 to prevent the material rolling down the first screen 71 from moving further, so as to enter the second material dropping chamber 74.
Preferably, the first screen 71 is parallel to the second screen 72, and the inclined angles between the first screen 71 and the second screen 72 and the horizontal direction are both 15-20 degrees, and the structure can be shown in fig. 1, so that the materials can roll down along the screens smoothly under the action of gravity;
and/or the aperture of the first screen 71 is 5mm, and the aperture of the second screen 72 is 20mm; of course, this is only a specific embodiment, and the aperture of the present solution is not limited to this, and may be adjusted according to the actual situation;
and/or the length of the first screen 71 is 3m and the length of the second screen 72 is 5m. By the arrangement, good grading effect of the filling aggregate can be realized, and meanwhile, an overlarge field is not occupied.
The embodiment of the utility model provides a preparation mine is with filling coarse aggregate system still includes: a product yard 92, the structure of which may be seen with reference to FIG. 1;
the product yard 92 is disposed at the outlet of the second blanking chamber 74 to facilitate collection of satisfactory products.
Specifically, the sprinkler system includes: a lime milk preparation tank 3, a flow meter 4 and a spraying device 5, the structure of which can be seen in figure 1;
wherein, the liquid inlet of the spraying device 5 is connected with the lime milk preparation pool 3, and the liquid outlet is connected with the granulation equipment 6;
a flow meter 4 is connected between the lime milk preparation tank 3 and the granulation apparatus 6 in order to control the flow rate.
The embodiment of the utility model provides a preparation mine is with filling coarse aggregate system still includes: a drying fan 8, the structure of which can be seen in fig. 1;
the air outlet of the drying fan 8 is disposed at the inlet of the drying and classifying vibrating screen 7 and below the first screen 71 to dry the surface water of the aggregate filling produced by the granulation device 6, preferably at a temperature of 50-55 ℃.
Further, dry classifying screen 7 still is equipped with: a first blanking chamber 73 and a blade crusher 76, the structure of which can be seen with reference to fig. 1;
wherein the inlet pair of the first blanking chamber 73 is located at the lower end of the second screen 72 to receive the material with larger outer diameter rolled off through the second screen 72; the blade crusher 76 is disposed in the first blanking chamber 73 to crush the larger outer diameter material for use in the subsequent process, i.e., the first semi-finished product.
The embodiment of the utility model provides a preparation mine is with filling coarse aggregate system still includes: a first semi-finished product yard 91, the structure of which can be seen with reference to fig. 1;
the first semi-finished product yard 91 is disposed at an outlet of the first blanking chamber 73 so as to gather the crushed first semi-finished products.
Preferably, the dry classification vibration sieve 7 is further provided with: a third blanking chamber 75, the structure of which can be seen with reference to fig. 1;
the inlet of the third blanking chamber 75 is disposed at the bottom of the first screen 71 and near the lower end of the first screen 71 to receive the smaller outer diameter material (i.e., the second semi-finished product) falling through the screen holes of the first screen 71. The drying and grading vibrating screen 7 is also provided with a bottom wall inclined in the same direction as the first screen 71 for rolling and gathering materials with smaller outer diameter.
The embodiment of the utility model provides a preparation mine is with filling coarse aggregate system still includes: a second semi-finished product yard 93, the second semi-finished product yard 93 being disposed at an outlet of the three blanking chambers 75, and having a structure as shown in fig. 1, so as to collect a second semi-finished product;
and/or, the third blanking chamber 75 is provided with a third material blocking plate 751, the top end of the third material blocking plate 751 abuts against the bottom of the first screen 71 to prevent the materials with smaller outer diameters falling through the screen holes of the first screen 71 from moving further, so as to facilitate the materials to enter the third blanking chamber 75.
The present solution is further described below with reference to specific embodiments:
the utility model discloses a semi-hydrated phosphogypsum preparation mine is with filling coarse aggregate system, include: raw material bins (comprising a semi-hydrated phosphogypsum feed opening), a conveying belt, a spraying system, a disc granulator, a drying and grading vibrating screen, a finished product yard, a blade crusher, a first semi-finished product yard, a second semi-finished product yard and a scraper for transportation. The spraying system comprises a lime milk preparation pool (comprising a modifier dissolving tank, wherein the modifier comprises alkaline exciting agents such as lime, carbide slag and the like), a flowmeter and a spraying device, wherein one end of the spraying device is connected with the lime milk preparation pool, and the other end of the spraying device is connected with the disc granulator (granulation is not limited to the disc granulator or can be realized by other granulation equipment); two screens (a first screen with an aperture of 5mm and a second screen with an aperture of 20 mm) which are inclined at 15-20 degrees are arranged in the drying and grading vibrating screen, the length of the first screen is 3m, the length of the second screen is 5m, good grading effect of the filled aggregate can be guaranteed, and meanwhile, an overlarge field is not occupied; meanwhile, the vibrating screen box body is externally connected with a drying fan, the temperature of the air heater is set to be 50-55 ℃, and surface water for drying the filling aggregate manufactured by the disc granulator can be maximally dried; the coarse particle filling aggregate on the upper part of the second screen mesh slides to the first blanking chamber, and falls to a first semi-finished product storage yard after being crushed by the blade crusher; the filling aggregate between the second screen and the first screen slides to a finished product storage yard through the second blanking chamber; and the fine particle filling aggregates on the lower part of the first screen mesh fall to a second semi-finished product yard through a third blanking chamber, and the filling aggregates of the first semi-finished product yard and the second semi-finished product yard are conveyed by the scraper and are shoveled and transported to the phosphogypsum yard for preparation again. The system has simple structure, and the produced semi-hydrated phosphogypsum filling coarse aggregate has the excellent characteristics of low crushing value, high strength and low pulverization rate.
The scheme has the following advantages:
(1) the preparation cost of the filling coarse aggregate is reduced;
(2) the metastable state of the semi-hydrated phosphogypsum is utilized for granulation to prepare the obtained filling coarse aggregate, and when the filling coarse aggregate is used for filling, the pipeline abrasion can be reduced, meanwhile, the aggregate strength is high, and the filling cost can be effectively reduced;
(3) solid waste is consumed.
To sum up, the utility model discloses a preparation mine is with filling coarse aggregate system, the preparation fill coarse aggregate intensity high, the pulverization rate is low, can use fast through the gypsum ball coarse aggregate that this device prepared.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A system for preparing a coarse aggregate for mine filling, comprising: the device comprises a raw material bin (1), a conveying belt (2), a spraying system, a granulation device (6) and a drying and grading vibrating screen (7);
the raw material bin (1) is connected to the inlet of the granulating device (6) through the conveying belt (2), and the outlet of the granulating device (6) is connected to the inlet of the drying and grading vibrating screen (7);
the drying and grading vibration screen (7) is internally provided with: a first screen (71) and a second screen (72) inclined in the same direction; the second screen (72) is positioned above the first screen (71), and the second screen (72) has larger apertures than the first screen (71);
the inlet pair of the drying and grading vibration screen (7) is positioned at the high-level end of the second screen (72); the drying and grading vibration screen (7) is provided with: a second drop chamber (74), an inlet pair of the second drop chamber (74) being located at a lower end of the first screen (71).
2. The system for preparing mine fill coarse aggregate according to claim 1, wherein the second blanking chamber (74) is provided with a second stopper plate (741);
the top end of the second baffle plate (741) is abutted against the bottom of the second screen (72).
3. The system for preparing mine fill coarse aggregate according to claim 1, wherein the first screen (71) is parallel to the second screen (72), and the first screen (71) and the second screen (72) are inclined at an angle of 15-20 degrees to the horizontal;
and/or the aperture of the first screen (71) is 5mm, and the aperture of the second screen (72) is 20mm;
and/or the length of the first screen (71) is 3m, and the length of the second screen (72) is 5m.
4. The system for preparing mine fill coarse aggregate according to claim 1, further comprising: a product yard (92);
the finished product storage yard (92) is arranged at an outlet of the second blanking chamber (74).
5. The coarse aggregate charging system for preparing mines according to claim 1, wherein the spraying system comprises: a lime milk preparation pool (3), a flow meter (4) and a spraying device (5);
a liquid inlet of the spraying device (5) is connected with the lime milk preparation pool (3), and a liquid outlet of the spraying device is connected with the granulation equipment (6);
the flow meter (4) is connected between the lime milk preparation tank (3) and the granulation device (6).
6. The system for preparing a mine fill coarse aggregate according to claim 1, further comprising: a drying fan (8);
and an air outlet of the drying fan (8) is arranged at an inlet of the drying and grading vibrating screen (7) and is positioned below the first screen (71).
7. The system for preparing mine fill coarse aggregate according to claim 1, characterized in that the dry grading sieve (7) is further provided with: a first blanking chamber (73) and a blade crusher (76);
the inlet pair of the first blanking chamber (73) is positioned at the lower end of the second screen (72), and the blade crusher (76) is arranged in the first blanking chamber (73).
8. The system for preparing mine fill coarse aggregate according to claim 7, further comprising: a first semi-finished product yard (91);
the first semi-finished product storage yard (91) is arranged at an outlet of the first blanking chamber (73).
9. The system for preparing a mine fill coarse aggregate according to claim 1, wherein the dry classification vibrating screen (7) is further provided with: a third blanking chamber (75);
the inlet of the third blanking chamber (75) is arranged at the bottom of the first screen (71) and is close to the low end of the first screen (71).
10. The system for preparing mine fill coarse aggregate according to claim 9, further comprising: a second semi-finished product yard (93), the second semi-finished product yard (93) being disposed at an outlet of the three blanking chambers (75);
and/or the third blanking chamber (75) is provided with a third material baffle plate (751), and the top end of the third material baffle plate (751) abuts against the bottom of the first screen (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913405.7U CN218486547U (en) | 2022-11-02 | 2022-11-02 | Preparation mine is with filling coarse aggregate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913405.7U CN218486547U (en) | 2022-11-02 | 2022-11-02 | Preparation mine is with filling coarse aggregate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218486547U true CN218486547U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222913405.7U Active CN218486547U (en) | 2022-11-02 | 2022-11-02 | Preparation mine is with filling coarse aggregate system |
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| Country | Link |
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| CN (1) | CN218486547U (en) |
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- 2022-11-02 CN CN202222913405.7U patent/CN218486547U/en active Active
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