A mineral slag granulation system

Abstract

The utility model discloses a kind of mineral slag granulation systems, including cover body, cover body is accessed with high-pressure water spraying system and granulation compressed air system, the granulation pump group of high-pressure water spraying system is connected with granulation water nozzle by granulation water pipe, and the granulation air pipe of granulation compressed air system is connected with granulation gas nozzle;Granulation water pipe and granulation air pipe access granulation tank, and granulation water nozzle and granulation gas nozzle extend from granulation tank;Cover body is also accessed with spraying system, and spraying system and high-pressure water spraying system are respectively connected water supply mechanism.Such as compressed air and high-pressure water double medium as granulation power, mineral slag can be rapidly broken and cooled, reach uniform granulation effect.Compared with water crushing process, water consumption can be reduced by about 85%, and wastewater amount is greatly reduced.Precipitation tank can be directly set in system to treat wastewater, without building wastewater treatment facilities, simplify the structure of facility, reduce construction cost.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing technology, and in particular to a system for granulating mineral slag. Background Technology

[0002] Granulation is a crucial step in the processing of minerals and slags, used to refine them into a finer, more uniform state. Hydrogranulation technology involves directly spraying high-pressure cooling water onto molten slag, rapidly cooling it to create finer granules, thus producing hydrogranulated slag. This technique of rapid cooling with high-pressure water is called hydrogranulation. However, hydrogranulation for minerals and slags presents several problems: First, it consumes a large amount of water, as the granulation process relies entirely on the impact force of the water, requiring a significant volume. Second, the large water consumption results in substantial wastewater generation, which cannot be adequately treated by sedimentation alone, necessitating specialized wastewater treatment facilities. Third, the complex structure of the entire system, requiring numerous processing systems, leads to high costs and construction difficulties. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a mineral slag granulation system that is simpler in structure, more rational in design, lower in cost, uses less water, and eliminates the need for separate wastewater treatment facilities.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a mineral slag granulation system, comprising a hood capable of forming a closed space for granulation treatment, wherein a granulation treatment mechanism is connected inside the hood; the granulation treatment mechanism includes a high-pressure water spray system, wherein the granulation pump group of the high-pressure water spray system is connected to a granulation water nozzle through a granulation water pipe; the granulation treatment mechanism further includes a granulation compressed air system, wherein the inlet of the granulation air pipe of the granulation compressed air system is connected to a compressed air source, and the outlet of the granulation air pipe is connected to a granulation air nozzle; a granulation box is provided inside the hood, wherein the granulation water pipe and the granulation air pipe are respectively connected to the granulation box, and the granulation water nozzle and the granulation air nozzle are arranged side by side and extend from the granulation box respectively; a spray system is also connected inside the hood, wherein the spray pump group of the spray system and the granulation pump group of the high-pressure water spray system are respectively connected to a water supply mechanism.

[0005] Furthermore, the water supply system includes a water tank located next to the enclosure; a sedimentation tank is also installed next to the enclosure at a position lower than the enclosure, and the sedimentation tank is connected to the drainage system of the enclosure. The water tank is connected to the sedimentation tank via a submersible pump, and the submersible pump is connected to a Y-type filter.

[0006] Furthermore, a window is provided on one side of the enclosure, and the granulation box is located inside the enclosure near the window; the granulation water pipe and the granulation gas pipe pass through the window and are connected to the granulation box respectively. The granulation water pipe is connected to several rows of granulation water nozzles, and the granulation gas pipe is connected to several rows of granulation gas nozzles, with the granulation gas nozzles located below the granulation water nozzles.

[0007] Furthermore, an inspection platform is provided next to the enclosure near the window, and an inspection ladder is installed next to the inspection platform; a slide rail is provided on the inspection platform, the slide rail extends into the interior of the enclosure, and the granulation box is installed on the slide rail to form a sliding structure; an explosion-proof door is provided between the inspection platform and the enclosure, and an opening is provided on the explosion-proof door facing the window.

[0008] Furthermore, a transfer port is provided on the side wall of the enclosure, and guide rails are provided on both sides of the transfer port. A lifting door that can slide up and down is installed through the guide rails. The lifting door is connected to a winch, which is installed on the top of the enclosure.

[0009] Furthermore, the cover is made of stainless steel, with reinforcing ribs on the outer and top surfaces, and a grid and guardrail on the top edge of the cover.

[0010] Furthermore, an exhaust chimney is provided at the top of the enclosure, and the exhaust chimney connects to the internal space of the enclosure.

[0011] Furthermore, the spray pump group of the spray system is connected to several spray branch pipes through the main spray pipe, and each spray branch pipe extends to the top of the cover to achieve downward spraying.

[0012] Preferably, the spray pump set of the spray system and the granulation pump set of the high-pressure water spray system are installed side by side next to the cover and the water tank.

[0013] This invention utilizes a dual-medium approach of compressed air and high-pressure water as the granulation power source. By controlling the air pressure and water flow rate, an optimal jet of granulation impact can be achieved, rapidly crushing and cooling minerals and slag to achieve uniform granulation. Simultaneously, it significantly reduces water consumption, decreasing it by approximately 85% compared to traditional water-based granulation processes, thereby greatly reducing wastewater volume. This allows for the direct installation of sedimentation tanks within the system to treat wastewater, enabling water recycling within the system and eliminating the need for separate wastewater treatment facilities. This significantly simplifies the facility structure and reduces construction costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0016] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 4 This is a top view of the present invention (with the fence removed).

[0018] In the diagram, 1 is the enclosure, 11 is the reinforcing rib, 12 is the guardrail, 13 is the fence, 14 is the guide rail, 21 is the granulation pump set, 22 is the granulation water pipe, 23 is the granulation gas pipe, 24 is the granulation box, 25 is the granulation water nozzle, 26 is the granulation gas nozzle, 31 is the spray pump set, 32 is the main spray pipe, 33 is the branch spray pipe, 41 is the water tank, 42 ​​is the sedimentation tank, 43 is the submersible pump, 5 is the maintenance platform, 51 is the maintenance ladder, 52 is the slide rail, 6 is the explosion-proof door, 7 is the exhaust chimney, 8 is the lifting door, and 81 is the winch. Detailed Implementation

[0019] In this embodiment, refer to Figures 1-4 The mineral slag granulation system includes a cover 1 capable of forming a closed space for granulation treatment, and a granulation treatment mechanism connected inside the cover 1. The granulation treatment mechanism includes a high-pressure water spray system and a granulation compressed air system. The granulation pump group 21 of the high-pressure water spray system is connected to a granulation water nozzle 25 through a granulation water pipe 22. One end (inlet) of the granulation compressed air pipe 23 of the granulation compressed air system is connected to a compressed air source (such as an air compressor), and the other end (outlet) is connected to a granulation air nozzle 26. A granulation box 24 is set inside the cover 1. The granulation water pipe 22 and the granulation air pipe 23 are respectively connected to the granulation box 24. The granulation water nozzle 25 and the granulation air nozzle 26 are arranged side by side and extend from the granulation box 24 respectively. This can form a dual-fluid medium jet, so that water flow and air flow simultaneously impact the mineral slag under high pressure, rapidly crushing and cooling the mineral slag. Different pressures can be adjusted using components such as a self-regulating valve group, a pressure transmitter, and a multi-stage centrifugal pump to obtain different impact forces. The specific adjustment method is existing technology and will not be elaborated here. A spray system is also connected inside the enclosure 1. The spray pump group 31 of the spray system and the granulation pump group 21 of the high-pressure water spray system are respectively connected to the water supply mechanism.

[0020] The water supply system includes a water tank 41, which is located next to the enclosure 1. A sedimentation tank 42 is also located next to the enclosure 1, below its height. The sedimentation tank 42 is connected to the drainage system of the enclosure 1, and wastewater generated during the granulation process flows by gravity through pipes to the sedimentation tank 42 for sedimentation. The water tank 41 is connected to the sedimentation tank 42 via a submersible pump 43, and the purified water obtained from sedimentation is pumped back to the water tank 41 for reuse. The submersible pump 43 is connected to a Y-type filter for filtering any impurities that may be present.

[0021] A window is provided on one side of the enclosure 1, and the granulation box 24 is located inside the enclosure 1 near the window. The granulation water pipe 22 and the granulation air pipe 23 pass through the window and connect to the granulation box 24. The granulation water pipe 22 is connected to several rows (e.g., two rows) of granulation water nozzles 25, and the granulation air pipe 23 is connected to several rows (e.g., two rows) of granulation air nozzles 26, which are located below the granulation water nozzles 25. Both the air pressure and water pressure are adjustable. The air working pressure of the granulation air nozzles 26 can be 0.6-0.8 MPa, and the pressurized water working pressure of the granulation water nozzles 25 can be 0.8-1.0 MPa. The specific flow rate is determined according to the slag discharge volume.

[0022] A maintenance platform 5 is located next to the enclosure 1 near the window, and a maintenance ladder 51 is installed next to the maintenance platform 5 for convenient maintenance personnel. A slide rail 52 is installed on the maintenance platform 5, extending into the interior of the enclosure 1. The granulation box 24 is installed on the slide rail 52 to form a sliding structure. The granulation box 24 can be pushed in and out to facilitate maintenance and installation, saving manpower. An explosion-proof door 6 is provided between the maintenance platform 5 and the enclosure 1 to prevent high-speed water and air jets from shooting out of the window and causing injury. The explosion-proof door 6 has an opening facing the window.

[0023] A transfer port is provided on the side wall of the cover 1. Guide rails 14 are provided on both sides of the transfer port. A lifting door 8 that can slide up and down is installed through the guide rails 14. The lifting door 8 is connected to a winch 81. The winch 81 is installed on the top of the cover 1. Lifting the lifting door 8 facilitates the transfer of mineral slag.

[0024] The cover 1 is made of stainless steel, and reinforcing ribs 11 are provided on the outer side and top surface of the cover 1. The cover 1 can be made of SUS316 steel plate, and the reinforcing ribs 11 can be made of Q235B square steel. A grid 13 and a guardrail 12 are also provided on the top of the cover 1, with the guardrail 12 surrounding the edge of the top of the cover 1.

[0025] An exhaust chimney 7 is provided at the top of the cover 1. The exhaust chimney 7 connects to the internal space of the cover 1 and is used to exhaust smoke.

[0026] The spray pump group 31 of the spray system is connected to several spray branch pipes 33 through the spray main pipe 32. Each spray branch pipe 33 extends to the top of the cover 1 to achieve downward spraying.

[0027] Spray pump set 31 and granulation pump set 21 are installed side by side next to the cover 1 and water tank 41. Granulation pump set 21 can be CDM20-10 from Nanfang Pump Industry, and spray pump set 31 can be CDM15-10 from Nanfang Pump Industry.

[0028] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A mineral slag granulation system, comprising a hood capable of forming a closed space for granulation treatment, wherein a granulation treatment mechanism is connected inside the hood; the granulation treatment mechanism includes a high-pressure water spraying system, wherein a granulation pump unit of the high-pressure water spraying system is connected to a granulation water nozzle via a granulation water pipe, characterized in that: The granulation processing unit also includes a granulation compressed air system. The inlet of the granulation compressed air pipe of the granulation compressed air system is connected to a compressed air source, and the outlet of the granulation pipe is connected to a granulation nozzle. A granulation box is set inside the hood. The granulation water pipe and the granulation air pipe are respectively connected to the granulation box. The granulation water nozzle and the granulation air nozzle are arranged side by side and extend from the granulation box respectively. A spraying system is also connected inside the hood. The spraying pump group of the spraying system and the granulation pump group of the high-pressure water spraying system are respectively connected to the water supply mechanism.

2. The mineral slag granulation system according to claim 1, characterized in that: The water supply system includes a water tank located next to the enclosure; a sedimentation tank is also installed next to the enclosure at a position lower than the enclosure, and the sedimentation tank is connected to the drainage system of the enclosure. The water tank is connected to the sedimentation tank via a submersible pump, and the submersible pump is connected to a Y-type filter.

3. The mineral slag granulation system according to claim 1, characterized in that: A window is provided on one side of the enclosure, and the granulation box is located inside the enclosure near the window; the granulation water pipe and the granulation gas pipe pass through the window and are connected to the granulation box. The granulation water pipe is connected to several rows of granulation water nozzles, and the granulation gas pipe is connected to several rows of granulation gas nozzles, with the granulation gas nozzles located below the granulation water nozzles.

4. The mineral slag granulation system according to claim 3, characterized in that: A maintenance platform is located next to the enclosure, near the window, and a maintenance ladder is installed next to the maintenance platform. A slide rail is installed on the maintenance platform, extending into the interior of the enclosure, and the granulation box is installed on the slide rail to form a sliding structure. An explosion-proof door is installed between the maintenance platform and the enclosure, and an opening is provided on the explosion-proof door facing the window.

5. The mineral slag granulation system according to claim 1, characterized in that: A transfer port is provided on the side wall of the enclosure, and guide rails are provided on both sides of the transfer port. A lifting door that can slide up and down is installed through the guide rails. The lifting door is connected to a winch, which is installed on the top of the enclosure.

6. The mineral slag granulation system according to claim 1 or 5, characterized in that: The cover is made of stainless steel and has reinforcing ribs on its outer and top surfaces. A grid and guardrail are also installed on the top edge of the cover.

7. The mineral slag granulation system according to claim 1, characterized in that: An exhaust chimney is installed at the top of the enclosure, and the exhaust chimney connects to the internal space of the enclosure.

8. The mineral slag granulation system according to claim 1, characterized in that: The spray pump unit of the spray system is connected to several spray branch pipes through the main spray pipe, and each spray branch pipe extends to the top of the cover to achieve downward spraying.

9. The mineral slag granulation system according to claim 1, characterized in that: The spray pump set of the sprinkler system and the granulation pump set of the high-pressure water spray system are installed side by side next to the cover and water tank.

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