CN115054932A - Concentrated full-tailing solidification and stockpiling system and method for carrying out concentrated full-tailing solidification and stockpiling by using same - Google Patents
Concentrated full-tailing solidification and stockpiling system and method for carrying out concentrated full-tailing solidification and stockpiling by using same Download PDFInfo
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- 230000008023 solidification Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 108
- 239000000463 material Substances 0.000 claims abstract description 86
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- 239000002562 thickening agent Substances 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims abstract description 12
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- 230000008719 thickening Effects 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 4
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
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- 239000010949 copper Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
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- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 description 6
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- 238000006243 chemical reaction Methods 0.000 description 5
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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Abstract
The application provides a concentrated full tailings solidification and stockpiling system and a method for performing concentrated full tailings solidification and stockpiling by using the same, and relates to the field of solid waste treatment. Concentrated full tailings solidification stockpiling system includes: a thickener, a slurry pump, a solidified material bin, a feeding device and a heating device. The method for solidifying and piling up the concentrated full tailings by using the sand comprises the following steps: the method comprises the following steps of carrying out thickening on the full-tail mortar by a thickener to obtain concentrated full-tail mortar, mixing the concentrated full-tail mortar with a curing material from a curing material bin in a feeding device under the action of a slag slurry pump to obtain modified mortar, heating the modified mortar under the action of a heating device, and then discharging the modified mortar into a storage yard for storage. The application provides a full tailings solidification of concentration system of piling up has reduced the input of filter pressing equipment and the consumption of electric power, has avoided the transportation of tailings press cake, has reduced human input and environmental pollution, has guaranteed the continuity of operation.
Description
Technical Field
The application relates to the field of solid waste treatment, in particular to a concentrated full-tailing solidification stockpiling system and a method for carrying out concentrated full-tailing solidification stockpiling by using the same.
Background
At present, the direct discharge of low-concentration tailings cannot meet the requirements of related targets of modern mines; on-site practice also proves that a tailing pond formed by discharging low-concentration tailings has a large number of potential safety hazards, a large amount of manpower, material resources and financial resources are required to be invested for maintenance, and dam break accidents can happen once the maintenance is improper.
The conventional tailing discharging and piling system has the problems of complicated solidified material adding system, complex stirring system of tailing slurry and solidified material, inapplicability to low-temperature environment and the like.
Disclosure of Invention
The application aims to provide a concentrated full tailings solidification and stockpiling system and a method for performing concentrated full tailings solidification and stockpiling by using the same, so as to solve the problems.
In order to achieve the purpose, the following technical scheme is adopted in the application:
a concentrated full tailings solidification stockpiling system, comprising:
the thickener is used for preparing concentrated full-tail mortar;
the slurry pump is used for conveying the concentrated full-tail mortar from the thickener;
the curing material bin is used for storing and providing curing materials;
the feeding device is used for mixing the concentrated full-tail mortar and the curing material;
heating means for heating the mixture from the feeding means;
the entry of sediment stuff pump through first pipeline with the export intercommunication of thickener, the export of sediment stuff pump through the second pipeline with feeding device's first entry intercommunication, the export of solidified material feed bin with feeding device's second entry intercommunication, feeding device's export and third pipeline intercommunication, heating device sets up on the third pipeline.
Preferably, the feeding device comprises a variable-diameter pipeline, the diameter of a first end of the variable-diameter pipeline communicated with the second pipeline is larger than that of a second end of the variable-diameter pipeline communicated with the third pipeline, and the tail part of the second end is conical;
the diameter of the first end of the variable-diameter pipeline communicated with the second pipeline is 1.5-3 times of the diameter of the second pipeline.
Preferably, a plurality of filling pipes are evenly distributed on the pipeline of the first end in the circumferential direction, and the filling pipes are communicated with the curing material bin.
The filling tube is installed in pipeline cross-section diameter abrupt increase department, reduces the resistance of fluid pressure to reinforced when deciding the pipe diameter reinforced, and the filling tube that evenly surrounds the distribution of equidistant angle is reinforced more is favorable to the misce bene of solidified material and concentrated full-tailing slurry body, has simplified solidified material and has added technology, has cancelled the agitated vessel of full-tailing slurry body and solidified material.
It should be noted that the feeding tube is generally perpendicular to the wall of the first end of the tube.
Preferably, the filling tube satisfies one or more of the following conditions:
a. an outlet of the feed pipe extends into the pipeline at the first end, the outlet of the feed pipe is in an oval shape of a beveled round pipe, and a port faces the slurry conveying direction;
b. a high-pressure gas conveying pipe communicated with the feeding pipe is arranged at the upstream of the outlet of the feeding pipe, and the included angle between the high-pressure gas conveying pipe and the feeding pipe is less than 30 degrees; the high-pressure gas conveying pipe is communicated with the high-pressure gas generating device;
c. and a spiral loosening structure is arranged between the lower part of the curing material bin and the upper part of the discharge hole of the curing material bin.
The length of the pipeline extending from the outlet of the feeding pipe to the first end is determined according to the maximum diameter of the variable-diameter pipeline and the diameter of the slurry conveying pipeline (a second pipeline).
Preferably, the heating device includes a heating dedicated duct, a heat generating component, and a heating controller;
the heating special pipeline is arranged on the third pipeline and partially replaces the third pipeline; the heating part is wound on the heating special pipeline, the heating controller is electrically connected with the heating part, and the heating part is controlled to be started and stopped by the temperature in the heating special pipeline fed back by the temperature sensor.
The heating device can perform two functions: (1) the reaction speed and degree of the curing material and the concentrated full-tail mortar are improved. In winter or in high-altitude areas, the temperature is low, the chemical reaction between the curing material and the concentrated full-tailing slurry body is slow, the temperature of the curing material and the concentrated full-tailing slurry body in the pipeline can be increased by heating the pipeline, and the reaction speed and degree of the curing material and the concentrated full-tailing slurry body are increased; (2) the temperature of the modified slurry is increased, the water evaporation is accelerated, the water content of the modified concentrated full-tailing pile is reduced, the risk of water permeation in tailings is reduced, and the water pollution is reduced.
Preferably, the material of the special heating pipeline is any one of copper, aluminum, iron, copper-aluminum alloy and aluminum-iron alloy.
Preferably, the heating device further includes a heat insulating member, and the heat generating component and the heating dedicated pipe are sealed inside the heat insulating member.
The heat preservation part seals the heating part and the heating special pipeline inside the heat preservation part, so that the personnel can be protected from being scalded while heat loss and energy are prevented, and the intrinsic safety of the whole system is improved.
Preferably, the slurry pump is communicated with a water pipeline for conveying cleaning water into the concentrated full tailings solidification stockpiling system.
The application also provides a method for carrying out concentrated full tailings solidification stockpiling by using the concentrated full tailings solidification stockpiling system, which comprises the following steps:
the method comprises the following steps of carrying out thickening on the full-tail mortar by a thickener to obtain concentrated full-tail mortar, mixing the concentrated full-tail mortar with a curing material from a curing material bin in a feeding device under the action of a slag slurry pump to obtain modified mortar, heating the modified mortar under the action of a heating device, and then discharging the modified mortar into a storage yard for storage.
Preferably, the mass ratio of the full tailings in the concentrated full-tailing mortar to the solidified material is (4-20): 1;
and the heating device starts heating when the temperature of the modified mortar is lower than 20 ℃ and stops heating when the temperature of the modified mortar is higher than 60 ℃.
Compared with the prior art, the beneficial effect of this application includes:
according to the concentrated full-tailing curing and stockpiling system and the method for carrying out concentrated full-tailing curing and stockpiling by using the same, full-tailing mortar is obtained by thickening through a thickener, then the full-tailing mortar is conveyed to a feeding device through a pipeline through a slurry pump, is mixed with curing materials from a curing material bin, is heated through a heating device, and is discharged into a yard for stockpiling; this concentrated full tailings solidification stockpiling system easy maintenance, easy operation can reduce the concentrated full tailings heap body moisture content of modification, improve the even degree of mixture of solidified material and concentrated full tailings slurry body in the pipeline, promote reaction rate and degree between them, improve the safety and stability of stockpiling body, realize safe, high-efficient stockpiling.
Drawings
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 are briefly described below, and 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 of the present application.
FIG. 1 is a schematic illustration of a concentrated whole tailings solidification stockpiling system provided in example 1;
FIG. 2 is a cross-sectional view of the charging device;
FIG. 3 is a left side view of the charging device shown in FIG. 2;
FIG. 4 is a schematic view of a heating device;
fig. 5 is a left side view of the charging device of comparative example 1 provided with a single charging tube.
Reference numerals:
1-a thickener; 2-a slurry pump; 3-a slurry conveying pipeline; 4-a solidified material bin; 5-a feeding device;
6-a heating device; 61-a heating controller; 62-a heat generating component; 63-heating special pipelines;
7-storage yard;
8-end slurry conveying pipeline; 81-a first electrically operated valve; 82-a second electrically operated valve;
9-water conveying pipeline; 10-a feed pipe; 11-a high pressure gas generating device; 12-high pressure gas delivery pipe; 13-helical loosening structure.
Detailed Description
The term as used herein:
"prepared from … …" is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of … …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of … …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when the range "1 ~ 5" is disclosed, the ranges described should be construed to include the ranges "1 ~ 4", "1 ~ 3", "1 ~ 2 and 4 ~ 5", "1 ~ 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
In these examples, the parts and percentages are by mass unless otherwise indicated.
"part by mass" means a basic unit of measure indicating a mass ratio of a plurality of components, and 1 part may represent any unit mass, for example, 1g or 2.689 g. If the parts by mass of the component A are a parts and the parts by mass of the component B are B parts, the mass ratio of the component A to the component B is expressed as a: b. alternatively, the mass of the A component is aK and the mass of the B component is bK (K is an arbitrary number, and represents a multiple factor). It is unmistakable that, unlike the parts by mass, the sum of the parts by mass of all the components is not limited to 100 parts.
"and/or" is used to indicate that one or both of the illustrated conditions may occur, e.g., a and/or B includes (a and B) and (a or B).
A concentrated full tailings solidification stockpiling system, comprising:
the thickener is used for preparing concentrated full-tail mortar;
the slurry pump is used for conveying the concentrated full-tail mortar from the thickener;
the curing material bin is used for storing and providing curing materials;
the feeding device is used for mixing the concentrated full-tail mortar and the curing material;
heating means for heating the mixture from the feeding means;
the entry of sediment stuff pump through first pipeline with the export intercommunication of thickener, the export of sediment stuff pump through the second pipeline with feeding device's first entry intercommunication, the export of solidified material feed bin with feeding device's second entry intercommunication, feeding device's export and third pipeline intercommunication, heating device sets up on the third pipeline.
In an alternative embodiment, the charging device comprises a variable diameter pipe, the diameter of a first end of the variable diameter pipe communicated with the second pipeline is larger than that of a second end of the variable diameter pipe communicated with the third pipeline, and the tail part of the second end is conical;
the diameter of the first end of the variable-diameter pipeline communicated with the second pipeline is 1.5-3 times of the diameter of the second pipeline.
Optionally, the diameter of the first end of the variable diameter pipeline communicated with the slurry conveying pipeline 3 may be 1.5 times, 2 times, 2.5 times, 3 times or any value between 1.5 times and 3 times of the diameter of the second pipeline. For example, the diameter of the second pipeline is 0.12m, and the diameter of one end of the variable diameter pipeline communicated with the second pipeline is 0.24 m.
In an optional embodiment, a plurality of feeding pipes are uniformly distributed on the pipeline of the first end in the circumferential direction, and the feeding pipes are communicated with the curing material bin.
The filling tube is installed in pipeline cross-section diameter abrupt increase department, reduces the resistance of fluid pressure to reinforced when deciding the pipe diameter reinforced, and the filling tube that evenly surrounds the distribution of equidistant angle is reinforced more is favorable to the misce bene of solidified material and concentrated full-tailing slurry body, has simplified solidified material and has added technology, has cancelled the agitated vessel of full-tailing slurry body and solidified material.
It should be noted that the feeding tube is generally perpendicular to the wall of the first end of the tube.
In an alternative embodiment, the feed tube satisfies one or more of the following conditions:
a. an outlet of the feed pipe extends into the pipeline at the first end, the outlet of the feed pipe is in an oval shape of a beveled round pipe, and a port faces the slurry conveying direction;
b. a high-pressure gas conveying pipe communicated with the feeding pipe is arranged at the upstream of the outlet of the feeding pipe, and the included angle between the high-pressure gas conveying pipe and the feeding pipe is less than 30 degrees; the high-pressure gas conveying pipe is communicated with the high-pressure gas generating device;
c. and a spiral loosening structure is arranged between the lower part of the curing material bin and the upper part of the discharge hole of the curing material bin.
The length of the pipeline extending from the outlet of the feeding pipe to the first end is determined according to the maximum diameter of the variable-diameter pipeline and the diameter of the slurry conveying pipeline (a second pipeline).
The high-pressure gas delivery pipe and the high-pressure gas generating device have three purposes: firstly, promote the interpolation of powder solidified material, make powder solidified material get into the second pipeline along with the air current together, secondly prevent intraductal high-pressure slurry to carry or powder and slurry contact consolidation and block up the discharge gate at the discharge gate through the filling tube to the feed bin, thirdly the slurry in the second pipeline is further disturbed to high-pressure air current, promotes its and solidified material further mixture.
The spiral loosening structure is arranged on the lower part of the curing material bin and the upper part of a discharge port of the bin, and the discharge port of the bin is connected with the charging pipe; the spiral loosening structure comprises a motor, a speed reducer, a bearing and a spiral blade. The device is used for preventing the powder solidified material in the bin from being compacted and blocked in discharging.
In an alternative embodiment, the heating device comprises a dedicated heating conduit, a heat generating component, and a heating controller;
the heating special pipeline is arranged on the third pipeline and partially replaces the third pipeline; the heating part is wound on the heating special pipeline, the heating controller is electrically connected with the heating part, and the heating part is controlled to be started and stopped by the temperature in the heating special pipeline fed back by the temperature sensor.
The heating device can perform two functions: (1) the reaction speed and degree of the curing material and the concentrated full-tail mortar are improved. In winter or in high-altitude areas, the temperature is low, the chemical reaction between the curing material and the concentrated full-tailing slurry body is slow, the temperature of the curing material and the concentrated full-tailing slurry body in the pipeline can be increased by heating the pipeline, and the reaction speed and degree of the curing material and the concentrated full-tailing slurry body are increased; (2) the temperature of the modified slurry is increased, the water evaporation is accelerated, the water content of the modified concentrated full-tailing pile is reduced, the risk of water permeation in tailings is reduced, and the water pollution is reduced.
In an optional embodiment, the material of the heating dedicated pipe is any one of copper, aluminum, iron, copper-aluminum alloy and aluminum-iron alloy.
In an alternative embodiment, the heating apparatus further includes a heat-retaining member, and the heat-generating member and the heating-dedicated pipe are sealed inside the heat-retaining member.
The heat preservation part seals the heating part and the heating special pipeline inside the heat preservation part, so that the personnel can be protected from being scalded while heat loss and energy are prevented, and the intrinsic safety of the whole system is improved.
In an alternative embodiment, the slurry pump is in communication with a water conduit for delivering cleaning water into the concentrated whole tailings solidification stockpiling system.
The application also provides a method for carrying out concentrated full tailings solidification stockpiling by using the concentrated full tailings solidification stockpiling system, which comprises the following steps:
the method comprises the following steps of carrying out thickening on the full-tail mortar by a thickener to obtain concentrated full-tail mortar, mixing the concentrated full-tail mortar with a curing material from a curing material bin in a feeding device under the action of a slag slurry pump to obtain modified mortar, heating the modified mortar under the action of a heating device, and then discharging the modified mortar into a storage yard for storage.
In an alternative embodiment, the mass ratio of the whole tailings in the concentrated whole tailings mortar to the solidified material is (4-20): 1;
and the heating device starts heating when the temperature of the modified mortar is lower than 20 ℃ and stops heating when the temperature of the modified mortar is higher than 60 ℃.
It is understood that the mass ratio of the whole tailings to the solidified material in the concentrated whole tailings mortar may be (4-20): 1, for example, 4: 1. 5: 1. 10: 1. 15: 1. 20: 1.
embodiments of the present application will be described in detail below with reference to specific examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present application and should not be construed as limiting the scope of the present application. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Example 1
As shown in fig. 1, the present embodiment provides a concentrated whole tailings solidification stockpiling system, including: the device comprises a thickener 1, a slurry pump 2, a slurry conveying pipeline 3, a solidified material bin 4, a feeding device 5 and a heating device 6; the system comprises a thickener 1, a slurry pump 2, a slurry conveying pipeline 3, a curing material bin 4, a feeding device 5 and a heating device 6, wherein the thickener 1 is used for preparing concentrated full-tail mortar, the slurry pump 2 is used for conveying the concentrated full-tail mortar from the thickener 1, the slurry conveying pipeline 3 is used for conveying the concentrated full-tail mortar from the slurry pump 2 to the feeding device 5, the curing material bin 4 is used for storing and providing curing materials, the feeding device 5 is used for mixing the concentrated full-tail mortar and the curing materials, and the heating device 6 is used for heating the mixture from the feeding device 5; the heated and reacted mixture is transported to a storage yard 7 for stockpiling.
The inlet of the slurry pump 2 is communicated with the outlet of the thickener 1 through a pipeline, the outlet of the slurry pump 2 is communicated with the first inlet of the feeding device 5 through a slurry conveying pipeline 3, the outlet of the solidified material bin 4 is communicated with the second inlet of the feeding device 5, the outlet of the feeding device 5 is communicated with a tail end slurry conveying pipeline 8, and the heating device 6 is arranged on the tail end slurry conveying pipeline 8.
As shown in fig. 1, in an alternative embodiment, the slurry pump 2 is in communication with a water conduit 9 for delivering purge water into the concentrated full tailings solidification stockpiling system.
It can be understood that a first electric valve 81 is arranged on the pipeline between the outlet of the thickener 1 and the inlet of the slurry pump 2, and a second electric valve 82 is arranged on the pipeline between the water pipeline 9 and the inlet of the slurry pump 2.
In a preferred embodiment, as shown in fig. 2 and 3, in order to increase the mixing efficiency, the feeding device 5 comprises a variable diameter pipe, the diameter of the end of the variable diameter pipe communicated with the slurry conveying pipe 3 is larger than that of the end communicated with the terminal slurry conveying pipe 8, and the tail part of the end communicated with the terminal slurry conveying pipe 8 is conical. One end of the variable-diameter pipeline communicated with the slurry conveying pipeline 3 is circumferentially and uniformly provided with 4 feeding pipes 10, each feeding pipe 10 is perpendicular to the pipe wall of the pipeline, and the included angle between every two adjacent feeding pipes 10 is 90 degrees; the feed tube 10 is in communication with the curing material bin 4. The outlet of the feed pipe 10 extends into a pipeline communicated with one end of the slurry conveying pipeline 3, the outlet of the feed pipe 10 is in an oval shape of a chamfered round pipe, and the port faces the slurry conveying direction.
In an alternative embodiment, the diameter of the end of the variable diameter pipe communicating with the slurry conveying pipe 3 is 1.5 times the diameter of the slurry conveying pipe 3.
In order to ensure smooth charging, in an alternative embodiment, a high-pressure gas delivery pipe 12 having one end communicating with the charging pipe 10 and the other end communicating with the high-pressure gas generating device 11 is provided upstream of the outlet of the charging pipe 10 (see fig. 2).
Typically, the high pressure gas delivery tube 12 is angled less than 30 ° from the feed tube 10.
In order to further ensure the smooth feeding, a spiral loosening structure 13 is arranged between the feeding pipe 10 and the solidified material bin 4. It can be understood that the spiral loosening structure 13 is arranged at the lower part of the curing material bin 4 and the upper part of a bin discharge port, and the bin discharge port is connected with the feeding pipe 10; the spiral loosening structure 13 comprises a motor, a speed reducer, a bearing, a spiral blade and other parts.
As shown in fig. 1 and 4, in a preferred embodiment, the heating device 6 includes a heating controller 61, a heat generating component 62, and a heating-dedicated duct 63. The special heating pipeline 63 is arranged on the tail end slurry conveying pipeline 8 and partially replaces the tail end slurry conveying pipeline 8; the heating component 62 is wound on the heating dedicated pipeline 63, the heating controller 61 is electrically connected with the heating component 62, and the heating component 62 is controlled to start and stop through the temperature in the heating dedicated pipeline 63 fed back by the temperature sensor.
It is understood that the material of the heating dedicated pipe is a metal with good thermal conductivity, such as any one of copper, aluminum, iron, copper aluminum alloy, and aluminum iron alloy.
In other embodiments, the heating device 6 further includes a heat-insulating member, and the heat-generating component 62 and the heating dedicated pipe 63 are sealed inside the heat-insulating member.
Example 2
The present embodiment provides a method for concentrated full tailings solidification stockpiling using the concentrated full tailings solidification stockpiling system provided in embodiment 1, including:
the thickener 1 thickens the full-tail mortar to obtain concentrated full-tail mortar, the concentrated full-tail mortar is mixed with a curing material from a curing material bin 4 in a feeding device 5 through a slurry conveying pipeline 3 under the action of a slurry pump 2 to obtain modified mortar, and the modified mortar is heated under the action of a heating device 6 and then discharged into a storage yard 7 for storage.
The mass ratio of the whole tailings in the concentrated whole tailing mortar to the solidified material is 10: 1.
the heating device 6 starts heating when the temperature of the modified mortar is lower than 20 ℃ and stops heating when the temperature is higher than 60 ℃.
Example 3
The present embodiment provides a method for concentrated full tailings solidification stockpiling using the concentrated full tailings solidification stockpiling system provided in embodiment 1, including:
the thickener 1 is used for thickening the full-tail mortar to obtain concentrated full-tail mortar, the concentrated full-tail mortar is mixed with a curing material from a curing material bin 4 in a feeding device 5 through a slurry conveying pipeline 3 under the action of a slurry pump 2 to obtain modified mortar, the modified mortar is heated under the action of a heating device 6, and then the modified mortar is discharged into a storage yard 7 for stockpiling.
The mass ratio of the whole tailings in the concentrated whole tailing mortar to the solidified material is 20: 1.
it is understood that the mass ratio of the whole tailings to the solidified material in the concentrated whole tailings mortar may be (4-20): 1, for example, 4: 1. 5: 1. 10: 1. 15: 1. 20: 1.
the heating device 6 starts heating when the temperature of the modified mortar is lower than 20 ℃ and stops heating when the temperature is higher than 60 ℃.
Comparative example 1
A feeding device provided with a single feeding tube is shown in fig. 5. Comparing fig. 3 and fig. 5, it can be seen that when only 1 feeding tube is used, the added setting material can only be mixed and reacted with the concentrated full-tail mortar in 1 direction, and the mixing efficiency of the slurry and the setting material is low. And when 4 uniformly distributed feed pipes are adopted, the added curing material is mixed and reacted with the concentrated full-tail mortar body in 4 directions, the mixing efficiency of the slurry and the curing material is at least improved by 50.7 percent compared with the former, and the length of a pipeline between the adding position of the curing material and the slurry outlet of a storage yard can be reduced.
Comparative example 2
When a heating device is not added, when the slurry is stockpiled in winter or in a region with higher altitude, the temperature of the external environment is lower, the modified slurry in the slurry conveying pipeline cannot be heated and is conveyed to a stock dump at lower temperature, and under the condition, the reaction degree and speed of the modified slurry are lower, the water evaporation is less and the efficiency is low.
The length of the special heating pipeline is 120m, when the conveying flow rate of the modified slurry is 2m/s, the modified slurry is conveyed in the special heating pipeline and heated for 60s, after the modified slurry leaves the special heating pipeline, the modified slurry can still be conveyed to the downstream at a certain temperature until the modified slurry is discharged to a storage yard, the reaction degree and the speed of the modified slurry are high under the condition, the water evaporation is more, and the water evaporation efficiency can be at least improved by 28.6% compared with the water evaporation efficiency without adding a heating device.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (10)
1. The utility model provides a full tailings solidification of concentration stockpiling system which characterized in that includes:
the thickener is used for preparing concentrated full-tail mortar;
the slurry pump is used for conveying the concentrated full-tail mortar from the thickener;
the curing material bin is used for storing and providing curing materials;
the feeding device is used for mixing the concentrated full-tail mortar and the curing material;
heating means for heating the mixture from the feeding means;
the entry of sediment stuff pump through first pipeline with the export intercommunication of thickener, the export of sediment stuff pump through the second pipeline with feeding device's first entry intercommunication, the export of solidified material feed bin with feeding device's second entry intercommunication, feeding device's export and third pipeline intercommunication, heating device sets up on the third pipeline.
2. The concentrated whole tailings solidification stockpiling system of claim 1, wherein the feeding device comprises a variable diameter pipe, the diameter of the variable diameter pipe is larger at a first end communicated with the second pipeline than at a second end communicated with the third pipeline, and the tail part of the second end is conical;
the diameter of the first end of the variable-diameter pipeline communicated with the second pipeline is 1.5-3 times of the diameter of the second pipeline.
3. The concentrated full tailings solidification and stockpiling system of claim 2, wherein a plurality of feed pipes are circumferentially and evenly distributed on the pipeline at the first end, and the feed pipes are communicated with the solidified material bin.
4. The concentrated whole tailings solidification stockpiling system of claim 3, wherein the feed tube satisfies one or more of the following conditions:
a. an outlet of the feed pipe extends into the pipeline at the first end, the outlet of the feed pipe is in an oval shape of a beveled round pipe, and a port faces the slurry conveying direction;
b. a high-pressure gas conveying pipe communicated with the feeding pipe is arranged at the upstream of the outlet of the feeding pipe, and the included angle between the high-pressure gas conveying pipe and the feeding pipe is less than 30 degrees; the high-pressure gas conveying pipe is communicated with the high-pressure gas generating device;
c. and a spiral loosening structure is arranged between the lower part of the curing material bin and the upper part of the discharge hole of the curing material bin.
5. The concentrated whole tailings solidification stockpiling system of claim 1, wherein the heating means comprises a heating dedicated pipe, a heat generating component, and a heating controller;
the heating special pipeline is arranged on the third pipeline and partially replaces the third pipeline; the heating part is wound on the heating special pipeline, the heating controller is electrically connected with the heating part, and the heating part is controlled to be started and stopped by the temperature in the heating special pipeline fed back by the temperature sensor.
6. The solidification and stockpiling system for concentrated full tailings of claim 5, wherein the material of the special heating pipeline is any one of copper, aluminum, iron, copper-aluminum alloy and aluminum-iron alloy.
7. The concentrated whole tailings solidification stockpiling system of claim 5, wherein the heating device further comprises a heat-retaining member, and the heat-generating member and the heating dedicated pipe are sealed inside the heat-retaining member.
8. The concentrated full tailings solidification stockpiling system of any one of claims 1 to 7, wherein the slurry pump is in communication with a water pipe for transporting cleaning water into the concentrated full tailings solidification stockpiling system.
9. A method of concentrated full tailings solidification stockpiling using the concentrated full tailings solidification stockpiling system of any one of claims 1 to 8, comprising:
the method comprises the following steps of carrying out thickening on the full-tail mortar by a thickener to obtain concentrated full-tail mortar, mixing the concentrated full-tail mortar with a curing material from a curing material bin in a feeding device under the action of a slag slurry pump to obtain modified mortar, heating the modified mortar under the action of a heating device, and then discharging the modified mortar into a storage yard for storage.
10. The method according to claim 9, wherein the mass ratio of the whole tailings in the concentrated whole tailings mortar to the solidified material is (4-20): 1;
and the heating device starts heating when the temperature of the modified mortar is lower than 20 ℃ and stops heating when the temperature of the modified mortar is higher than 60 ℃.
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| CN202210995818.6A CN115054932A (en) | 2022-08-19 | 2022-08-19 | Concentrated full-tailing solidification and stockpiling system and method for carrying out concentrated full-tailing solidification and stockpiling by using same |
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| CN202210995818.6A CN115054932A (en) | 2022-08-19 | 2022-08-19 | Concentrated full-tailing solidification and stockpiling system and method for carrying out concentrated full-tailing solidification and stockpiling by using same |
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