Sandstone aggregate building type sand making and screening system
By designing a building-style sand making screening system in a sand and gravel aggregate factory, a large-capacity buffer bin and intelligent control system are added, and a sand making and screening workshop is integrated, the high pollution, high cost and low efficiency of traditional open-pit mining plants is solved. The problem has achieved the goal of production and sales balance and environmental protection, and reduced operating costs and energy consumption.
Patent Information
- Application Number
- CN202323508423.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-22
AI Technical Summary
Traditional open-pit sand and gravel aggregate factories have problems of high pollution, high cost and low efficiency, especially because of the large area, high operating costs, many node failures, serious energy consumption pollution, and unbalanced production and sales, poor equipment stability, which makes it difficult to Meet the national environmental protection requirements and the needs of intelligent development.
Design a sand and gravel aggregate building-type sand making screening system, add a large-capacity sand making buffer bin, integrate a production system that integrates sand making, screening and cache, adopts an intelligent control system, adjusts the feed volume through frequency conversion, and integrates The transmission sand making, first and second-level screening workshops are in the same steel-concrete main factory building, and the equipment is managed by electro-hydraulic plug-in valves to achieve centralized supervision and management of equipment status.
It effectively reduces the frequency of downtime in liquidation, improves the warehousing utilization rate of finished products, shortens downtime, reduces energy consumption and operating costs, achieves a balance of production and sales, improves production efficiency, meets environmental protection requirements, and reduces human labor demand.
Smart Images
Figure CN222240646U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sand making and screening, in particular to a sand and gravel aggregate building-type sand making and screening system. Background Art
[0002] With the increasing maturity of open-pit mining technology and the requirements of national environmental protection policies, most of the comprehensive sand making and screening workshops of large-scale, multi-specification (common 0-5, 5-10, 10-20, 20-31.5mm and other finished products) machine-made sand and gravel aggregate factories currently adopt a flat layout. It is mainly divided into sand making workshop, first screening workshop, second screening workshop, etc. The incoming and returning materials in the sand making and screening room and the grading of finished aggregates are respectively transported by long-distance belts. This type of layout has many system nodes, a large operating site area, and difficult plant route planning, resulting in many equipment failure points, heavy dust at each node, chaotic vehicle transportation, and easy to be restricted by site terrain; resulting in high operating costs and low efficiency, as well as serious pollution, which does not meet national environmental protection requirements.
[0003] Although the building layout is also adopted at present, it is mainly limited to local screening or small-scale sand making systems, and the scattered layout has high operating costs; some factories lack large-capacity regulating buffer warehouses, which often lead to explosion of finished products of certain specifications, resulting in shutdown of the entire line, imbalance between production and sales, large load fluctuations of sand making machines, and low utilization rate of finished product warehouses; the steel frame main factory building has poor stability due to the high building and dynamic load of equipment; all of the above result in high investment costs, low cost performance and low economic benefits.
[0004] In view of the existing traditional open-pit mining projects, combined with the current national environmental protection policies and the strategy of promoting the intelligent development of traditional manufacturing industries, open-pit mining urgently needs a green, environmentally friendly, intelligent, efficient and energy-saving system to make up for the high pollution, high cost and low efficiency brought about by traditional open-pit mining. Therefore, technical personnel in this field provide a sand and gravel aggregate floor-type sand making and screening system to solve the problems raised in the above background technology. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a sand and gravel aggregate building-type sand making and screening system is proposed, a large-capacity sand making buffer warehouse is added, the imbalance of production and sales under the traditional layout is overcome, the frequency of shutdown due to warehouse explosion is greatly reduced, and the effective utilization rate of finished product storage is improved; at the same time, the materials on the equipment and the conveyor can be quickly recovered during shutdown, effectively shortening the downtime and reducing energy consumption, and preventing the secondary damage caused by the accumulation of equipment materials and re-starting with heavy load; the feeding amount of the belt feeder under the warehouse is adjusted by frequency conversion, the load of the sand making machine is stabilized to increase the output, and a building-type production system integrating sand making, screening and buffering is adopted, and the transmission sand making and the first and second level screening workshops are integrated into the same steel-concrete main plant, which solves the problems of large floor area, high operating cost, many node failures, high energy consumption and pollution, and low efficiency, and all equipment are arranged centrally, which is convenient for centralized management, operation and maintenance, and greatly reduces production costs; an intelligent control system is adopted to supervise and manage various production states of the equipment, reaching the standard of intelligent control, saving a lot of manpower, greatly reducing the cost of open-pit mining, and making up for the shortcomings of the traditional process layout.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand and gravel aggregate building-type sand making and screening system, comprising a main plant and a three-way feeding chute of a sand making machine, wherein the interior of the main plant is provided with a comprehensive screening area, a comprehensive sand making area and a sand making buffer area, wherein the comprehensive screening area comprises a first belt conveyor, a primary environmental protection grading screen and a secondary environmental protection grading screen, wherein a second belt conveyor is provided at the lower end of the primary environmental protection grading screen, wherein a third belt conveyor is provided between the second belt conveyor and the secondary environmental protection grading screen for connection, and wherein a third belt conveyor is provided at the lower end of the secondary environmental protection grading screen for connection The fourth belt conveyor, the fifth belt conveyor and the sixth belt conveyor are arranged at the end, the comprehensive sand making area includes a vertical shaft impact sand making machine and a sand making grading screen, and the lower end of the sand making grading screen is respectively connected with the fourth belt conveyor, the fifth belt conveyor, the sixth belt conveyor and the seventh belt conveyor, the sand making buffer area includes a sand making buffer bin and a variable frequency belt feeder, the variable frequency belt feeder is arranged at the lower end of the sand making buffer bin, the upper end of the sand making buffer bin is provided with an eighth belt conveyor, and the other side of the eighth belt conveyor is provided with a ninth belt conveyor;
[0007] Through the above technical scheme, a large-capacity sand-making buffer warehouse is added to overcome the imbalance between production and sales under the traditional layout, greatly reduce the frequency of shutdown due to warehouse explosion, and improve the effective utilization rate of finished product storage; at the same time, the materials on the equipment and conveyor can be quickly recovered during shutdown, effectively shortening the downtime and reducing energy consumption, and preventing secondary damage caused by the accumulation of materials in the equipment and re-starting with heavy load; the feeding amount of the belt feeder under the warehouse is adjusted by frequency conversion to stabilize the load of the sand-making machine and thus increase the output; a building-type production system integrating sand making, screening and buffering is adopted, and the transmission sand making and the first and second level screening workshops are integrated into the same steel-concrete main plant, which solves the problems of large floor space, high operating costs, many node failures, high energy consumption and pollution, and low efficiency, and all equipment is arranged centrally for centralized management, operation and maintenance, which greatly reduces production costs; an intelligent control system is used to supervise and manage various production states of the equipment, meeting the standards of intelligent control, saving a lot of manpower, greatly reducing the cost of open-pit mining, and making up for the shortcomings of the traditional process layout.
[0008] Furthermore, the third belt conveyor and the fifth belt conveyor are respectively connected to the eighth belt conveyor via a bidirectional transfer plow type unloader;
[0009] Through the above technical solution, the sand making buffer area and the comprehensive sand making area are connected to form a closed loop, and finally the mutual transformation between the particle sizes of the finished products is realized, thereby improving the output ratio and achieving the balance between production and sales to the greatest extent.
[0010] Furthermore, electro-hydraulic gate valves are respectively provided on both sides of the three-way feed chute of the sand making machine;
[0011] Through the above technical solution, the side gates and the corresponding sand making machines and sand grading screens are closed according to the amount of sand made and the maintenance situation, thereby reducing equipment power consumption or reducing downtime.
[0012] Furthermore, the sand making buffer bin is made of a mixture of reinforced concrete and Lipu steel plate bin;
[0013] Through the above technical solution, the strength is higher and the overall wear resistance is better.
[0014] Furthermore, the facade of the main plant building is made of reinforced concrete;
[0015] Through the above technical solution, the overall use strength and service life are long.
[0016] Furthermore, the sand making area and the buffer area are in a closed-circuit state;
[0017] Through the above technical solution, the sand making module can be started and operated independently. During orderly shutdown, the materials on the equipment and conveyor can be quickly recovered through the sand making buffer bin, which effectively reduces the downtime and energy consumption, and prevents the equipment from being damaged by material accumulation and re-starting with heavy load.
[0018] Furthermore, the primary environmental protection grading screen and the secondary environmental protection grading screen are connected end to end;
[0019] The above technical solution makes it easier to centrally manage and control operations, greatly reducing secondary pollution and thus achieving the goal of reducing costs and increasing efficiency.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, a large-capacity sand-making buffer bin is added to overcome the imbalance between production and sales under the traditional layout, greatly reduce the frequency of shutdown due to warehouse explosion, and improve the effective utilization rate of finished product storage; at the same time, the materials on the equipment and conveyor can be quickly recovered during shutdown, effectively shortening the downtime and reducing energy consumption, and preventing secondary damage caused by the accumulation of materials in the equipment and re-starting with heavy load; the feeding amount of the belt feeder under the bin is adjusted by frequency conversion, and the load of the sand-making machine is stabilized to increase production.
[0022] 2. In the utility model, a building-type production system integrating sand making, screening and caching is adopted, and the transmission sand making and the first and second level screening workshops are integrated into the same steel-concrete main plant, which solves the problems of large floor space, high operating cost, many node failures, high energy consumption and pollution, and low efficiency.
[0023] 3. In the present invention, all equipment is centrally arranged to facilitate centralized management, operation and maintenance, greatly reducing production costs; an intelligent control system is used to supervise and manage various production states of the equipment, meeting the standards of intelligent control, saving a lot of manpower, greatly reducing the cost of open-pit mining, and making up for the shortcomings of the traditional process layout.
[0024] 4. In the utility model, by installing electro-hydraulic gate valves on both sides of the three-way feed chute of the sand making machine, the side gates and the corresponding sand making machine and sand making grading screen can be closed according to the amount of sand made and the maintenance situation, thereby reducing the power consumption of the equipment or reducing the downtime, and achieving the purpose of energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a front view of the layout of a sand and gravel aggregate floor-type sand making and screening system proposed by the utility model;
[0026] Figure 2 This is a top view of a sand and gravel aggregate floor-type sand making and screening system proposed by the utility model;
[0027] Figure 3 for Figure 2Cross-sectional view in the BB direction;
[0028] Figure 4 for Figure 2 Sectional view in the AA direction;
[0029] Figure 5 The utility model discloses a structural schematic diagram of a three-way feeding chute for making sand in a sand and gravel aggregate floor-type sand making and screening system.
[0030] Legend:
[0031] 1. Main plant; 2. First-level environmental protection grading screen; 3. Second-level environmental protection grading screen; 4. Vertical shaft impact sand making machine; 5. Sand making grading screen; 6. Plough type discharger; 7. Sand making buffer bin; 8. Frequency conversion belt feeder; 9. Three-way feeding chute of sand making machine; 10. First belt conveyor; 11. Second belt conveyor; 12. Third belt conveyor; 13. Fourth belt conveyor; 14. Fifth belt conveyor; 15. Sixth belt conveyor; 16. Seventh belt conveyor; 17. Eighth belt conveyor; 18. Ninth belt conveyor. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] Reference Figure 1-5The utility model provides an embodiment: a sand and gravel aggregate building-type sand making and screening system, comprising a main plant 1 and a three-way feeding chute 9 of a sand making machine. The main plant 1 is provided with a comprehensive screening area, a comprehensive sand making area and a sand making buffer area. The comprehensive screening area comprises a first belt conveyor 10, a primary environmental protection grading screen 2 and a secondary environmental protection grading screen 3. A second belt conveyor 11 is provided at the lower end of the primary environmental protection grading screen 2. A third belt conveyor 12 is provided between the second belt conveyor 11 and the secondary environmental protection grading screen 3 for connection. Aggregates with a diameter of more than 31.5 mm produced after the primary screening enter the second belt conveyor 11 through the pre-screen chute for return, aggregates with a diameter of 20-31.5 mm enter the third belt conveyor 12 through the pre-screen chute, and aggregates with a diameter of less than 20 mm enter the secondary environmental protection grading screen 3 through the under-screen chute. A fourth belt conveyor 13, a fifth belt conveyor 14 and a sixth belt conveyor 15 are provided at the lower end of the secondary environmental protection grading screen 3. The 0-5mm, 5-10mm, and 10-20mm finished aggregates produced are respectively fed into the fourth belt conveyor 13, the fifth belt conveyor 14, and the sixth belt conveyor 15. The comprehensive sand making area includes a vertical shaft impact sand making machine 4 and a sand making grading screen 5. The 0-5mm, 5-10mm, and 10-20mm aggregates produced after grading are respectively fed into the fourth belt conveyor 13, the fifth belt conveyor 14, and the sixth belt conveyor 15. Aggregates larger than 20mm are fed into Inside the seventh belt conveyor 16, the lower end of the sand making grading screen 5 is respectively connected to the fourth belt conveyor 13, the fifth belt conveyor 14, the sixth belt conveyor 15 and the seventh belt conveyor 16. The sand making buffer area includes a sand making buffer bin 7 and a variable frequency belt feeder 8. The variable frequency belt feeder 8 is arranged at the lower end of the sand making buffer bin 7. The upper end of the sand making buffer bin 7 is provided with an eighth belt conveyor 17, and the other side of the eighth belt conveyor 17 is provided with a ninth belt conveyor 18.
[0034] The third belt conveyor 12 and the fifth belt conveyor 14 are respectively connected to the eighth belt conveyor 17 through a two-way transfer plow type discharger 6, so as to connect the sand making buffer area and the comprehensive sand making area to form a closed loop, and finally realize the mutual transformation between the finished product particle grades, thereby improving the output ratio and achieving the balance of production and sales to the greatest extent. Electro-hydraulic gate valves are respectively arranged on both sides of the three-way feeding chute 9 of the sand making machine. According to the amount of sand making and the maintenance situation, the side gate and the corresponding sand making machine and sand making grading screen 5 are closed, so as to reduce the power consumption of the equipment or reduce the downtime. The overall operation of the sand making buffer bin 7 is improved. It is made of a mixture of reinforced concrete and Lip steel silo. The facade of the main plant building 1 is made of reinforced concrete. The sand making area and the buffer area are in a closed-loop state. It can be started and operated separately as a sand making module. During orderly shutdown, the sand making buffer silo 7 can quickly recover materials on the equipment and conveyor, effectively reducing downtime and energy consumption, and preventing damage caused by heavy-load startup of equipment and materials accumulation. The first-level environmental protection grading screen 2 and the second-level environmental protection grading screen 3 are connected end to end, which makes it easy to centrally manage and control during operation, greatly reducing secondary pollution, thereby achieving the purpose of reducing costs and increasing efficiency.
[0035] Working principle: The utility model is a building-type sand making and screening system for sand and gravel aggregates. A large-capacity sand making buffer warehouse 7 is added to overcome the imbalance of production and sales under the traditional layout, greatly reduce the frequency of shutdown due to warehouse explosion, and improve the effective utilization rate of finished product storage; at the same time, the materials on the equipment and conveyor can be quickly recovered during shutdown, effectively shortening the downtime and reducing energy consumption, and preventing secondary damage caused by the accumulation of materials in the equipment and re-starting with heavy load; through the feeding amount of the variable frequency belt feeder 8, the load of the sand making machine is stabilized to increase the output, and a building-type production system integrating sand making, screening and caching is adopted, and the transmission sand making and the first and second level screening workshops are integrated into the same steel-concrete main plant 1, which solves the problems of large floor space, high operating cost, many node failures, high energy consumption and pollution, and low efficiency, and all equipment is arranged centrally, which is convenient for centralized management, operation and maintenance, and greatly reduces production costs; an intelligent control system is used to supervise and manage various production states of the equipment, reaching the standard of intelligent control, saving a lot of manpower labor, greatly reducing the cost of open-pit mining, and making up for the shortcomings of the traditional process layout.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A sand and gravel aggregate building-type sand making and screening system, comprising a main plant (1) and a three-way feeding chute (9) of a sand making machine, wherein the main plant (1) is provided with a comprehensive screening area, a comprehensive sand making area and a sand making buffer area, and is characterized in that: The comprehensive screening area comprises a first belt conveyor (10), a primary environmental protection grading screen (2) and a secondary environmental protection grading screen (3); a second belt conveyor (11) is arranged at the lower end of the primary environmental protection grading screen (2); a third belt conveyor (12) is arranged between the second belt conveyor (11) and the secondary environmental protection grading screen (3) for connection; a fourth belt conveyor (13), a fifth belt conveyor (14) and a sixth belt conveyor (15) are arranged at the lower end of the secondary environmental protection grading screen (3); the comprehensive sand making area comprises a vertical shaft impact sand making machine (4 ) and a sand-making grading screen (5), the lower end of the sand-making grading screen (5) being connected to a fourth belt conveyor (13), a fifth belt conveyor (14), a sixth belt conveyor (15) and a seventh belt conveyor (16) respectively, the sand-making buffer area comprising a sand-making buffer bin (7) and a variable frequency belt feeder (8), the variable frequency belt feeder (8) being arranged at the lower end of the sand-making buffer bin (7), an eighth belt conveyor (17) being arranged at the upper end of the sand-making buffer bin (7), and a ninth belt conveyor (18) being arranged on the other side of the eighth belt conveyor (17).
2. The sand and gravel aggregate floor-type sand making and screening system according to claim 1 is characterized in that: The third belt conveyor (12) and the fifth belt conveyor (14) are respectively connected to the eighth belt conveyor (17) via a bidirectional transfer plow type unloader (6).
3. The sand and gravel aggregate floor-type sand making and screening system according to claim 1 is characterized in that: Electro-hydraulic gate valves are respectively arranged on both sides of the three-way feed chute (9) of the sand making machine.
4. The sand and gravel aggregate floor-type sand making and screening system according to claim 1 is characterized in that: The sand making buffer bin (7) is integrally made of a mixture of reinforced concrete and Lip steel plate bin.
5. The sand and gravel aggregate floor-type sand making and screening system according to claim 1 is characterized in that: The exterior facade of the main factory building (1) is made of reinforced concrete.
6. The sand and gravel aggregate floor-type sand making and screening system according to claim 1 is characterized in that: There is a closed-loop circulation state between the sand making area and the buffer area.
7. The sand and gravel aggregate floor-type sand making and screening system according to claim 1 is characterized in that: The primary environmental protection grading screen (2) and the secondary environmental protection grading screen (3) are connected end to end.