A system for sorting stone dust

Abstract

The application is a kind of stone powder sorting system, including feeding equipment, feeding equipment is feeding for slurry preparation equipment, the stone block outlet of slurry preparation equipment is transported to the temporary storage yard through the belt conveyor, the first screening equipment is connected with the ore slurry liquid outlet, the sand outlet of the first screening equipment is connected with the first spiral dewatering equipment, the first spiral dewatering equipment is provided with the discharge port and the tailing slurry liquid outlet, the discharge port is discharged as building sand, the ore slurry liquid outlet of the first screening equipment is connected with the primary cyclone sorting equipment, the overflow outlet of the primary cyclone sorting equipment is connected with the secondary cyclone sorting equipment, the underflow outlet of the secondary cyclone sorting equipment is connected with the primary dynamic static separation equipment, the tailing slurry liquid outlet of the primary dynamic static separation equipment is connected with the four-stage concentration equipment, the concentrated ore slurry outlet of the four-stage concentration equipment is connected with the four-stage dewatering equipment, the application can perform ladder classification screening on the stone powder, the whole system is closed loop connection, and the dust pollution to the environment is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of stone powder processing, and particularly relates to a stone powder sorting system. BACKGROUND

[0002] Stone powder is a general term for the powder of stone, and there are many types of stone, and there are many varieties according to the mineral composition, and it is not necessarily calcium carbonate. Calcium carbonate is limestone, which is only one of stone powder, and there is talc powder in stone powder, which is used for making putty. There is also quartz powder, which is used for making glass. There are also many rocks with mineral components, which can be ground into powder and used for different processes and purposes.

[0003] In order to ensure that the environment is not polluted and the quality when reused, the stone powder needs to be processed and purified, and at the same time, in order to fully utilize the stone powder and turn waste into treasure, the stone powder is sorted, which is an important step in the environmental protection industry, and improper treatment will cause dust and leakage, which will cause serious pollution to the environment. SUMMARY

[0004] The purpose of the application is to provide a stone powder sorting system, which can perform step-by-step classification and screening on the stone powder, and the whole system is connected in a closed loop, so as to avoid dust pollution to the environment.

[0005] In order to achieve the above purpose, the following technical scheme is provided:

[0006] A kind of stone powder sorting system, including feeding equipment, the feeding equipment is fed by belt conveyor for slurry preparation equipment, the slurry preparation equipment is provided with stone block outlet, ore slurry liquid outlet, the stone block outlet is conveyed stone block to temporary storage yard by the belt conveyor provided with, the ore slurry liquid outlet is connected with first screening equipment, the first screening equipment is provided with sand outlet, ore slurry liquid outlet, the sand outlet is connected with first spiral dewatering equipment, the first spiral dewatering equipment is provided with discharge port and tailings slurry liquid outlet, its discharge port is discharged and is building sand, the ore slurry liquid outlet of first screening equipment is connected with primary cyclone sorting equipment, the primary cyclone sorting equipment is provided with underflow outlet, overflow outlet, the overflow outlet is connected with secondary cyclone sorting equipment, the secondary cyclone sorting equipment is also provided with underflow outlet and overflow outlet, its underflow outlet is connected with primary dynamic-static separation equipment, the primary dynamic-static separation equipment is provided with concentrate slurry liquid outlet and tailings slurry liquid outlet, the tailings slurry liquid outlet is connected with four-stage concentration equipment, the concentrated ore slurry outlet of four-stage concentration equipment is connected with four-stage dewatering equipment, the underflow outlet of primary cyclone sorting equipment and the concentrate slurry liquid outlet of primary dynamic-static separation equipment are all connected with primary magnetic separation equipment, the concentrate slurry liquid outlet of primary magnetic separation equipment is connected with secondary magnetic separation equipment, the concentrate slurry liquid outlet of secondary magnetic separation equipment is connected with tertiary magnetic separation equipment, the concentrate slurry liquid outlet of tertiary magnetic separation equipment is connected with tertiary cyclone sorting equipment, the tertiary cyclone sorting equipment is provided with underflow outlet and overflow outlet, its overflow outlet is connected with four-stage magnetic separation equipment, the concentrate slurry liquid outlet of four-stage magnetic separation equipment is connected with four-stage cyclone sorting equipment, the underflow outlet and overflow outlet of four-stage cyclone sorting equipment, its underflow outlet is connected with secondary dynamic-static separation equipment, the secondary dynamic-static separation equipment is provided with concentrate slurry liquid outlet and secondary concentrate slurry liquid outlet, its concentrate slurry liquid outlet is connected with first concentration equipment, the ore slurry liquid outlet of first concentration equipment is connected with first dewatering equipment, the underflow outlet of tertiary cyclone sorting equipment is connected with second spiral dewatering equipment, the second spiral dewatering equipment is provided with discharge port and ore slurry liquid outlet, its discharge port is connected with second screening equipment, the discharge of sand outlet of second screening equipment is high-purity fine sand, the ore slurry liquid outlet of second screening equipment and second spiral dewatering equipment is connected with four-stage magnetic separation equipment, the overflow outlet of four-stage cyclone sorting equipment is connected with five-stage cyclone sorting equipment, the five-stage cyclone sorting equipment is provided with underflow outlet and overflow outlet, its overflow outlet is connected with secondary concentration equipment, the concentrated ore slurry outlet of secondary concentration equipment is connected with secondary dewatering equipment, the underflow outlet of five-stage cyclone sorting equipment is also connected with secondary dynamic-static separation equipment, the secondary concentrate slurry liquid outlet of secondary dynamic-static separation equipment is connected with tertiary concentration equipment, the concentrated ore slurry outlet of tertiary concentration equipment is connected with tertiary dewatering equipment, the first dewatering equipment, secondary dewatering equipment, tertiary dewatering equipment, four-stage dewatering equipment are all provided with dewatering outlet, and dewatering outlet is all connected to circulating water pool.The circulating water pool supplies water for the slurry preparation device, the primary magnetic separation device, the secondary magnetic separation device and the tertiary magnetic separation device.

[0007] Preferably, the tailing slurry outlets of the primary magnetic separation device, the secondary magnetic separation device and the tertiary magnetic separation device are connected with the first spiral dewatering device, and the tailing slurry outlet of the first spiral dewatering device, the tailing slurry outlet of the fourth magnetic separation device and the overflow outlet of the secondary cyclone separation device are connected with the fourth thickening device.

[0008] Preferably, a water storage tank is further arranged in the separation system, the water storage tank supplies water for the fourth magnetic separation device, the overflow water outlets of the first thickening device, the second thickening device, the third thickening device and the fourth thickening device are connected with the water storage tank, and the overflow water outlets of the first thickening device and the fourth thickening device are connected with the inlet of the water storage tank.

[0009] Preferably, the inlet of the first screening device is further connected with a liquid stone powder pool, and the liquid stone powder pool pumps liquid stone powder to the first screening device through a pump.

[0010] Preferably, the product outlets of the first dewatering device, the second dewatering device and the fourth dewatering device are connected with a belt conveyor arranged to deliver the products to a temporary storage field.

[0011] The present application has the following advantages:

[0012] 1. The system of the present application is provided with a circulating water pool, and the water used in production is recycled, so that the water resource can be saved and the environment can be protected.

[0013] 2. The system of the present application can perform stepwise classification and screening of stone powder, and the stone powder can be separated into various particle sizes suitable for different processes. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The system of the present application is shown in the system block diagram. DETAILED DESCRIPTION

[0015] The present application will be described in detail below with reference to the accompanying drawings.

[0016] As Figure 1As shown, a stone powder sorting system includes a feeding device that feeds material to a slurry processing device via a belt conveyor. The slurry processing device has a stone outlet and a slurry outlet. The stone outlet is transported to a temporary storage area via a belt conveyor. The slurry outlet is connected to a first screening device, which has a sand outlet and a slurry outlet. The sand outlet is connected to a first spiral dewatering device, which has a discharge port and a tailings slurry outlet. The discharge port discharges construction sand. The slurry outlet of the first screening device is connected to a primary cyclone separator, which has an underflow outlet and an overflow outlet. The overflow outlet is connected to a secondary cyclone separator, which also has an underflow outlet. The overflow outlet and the underflow outlet are connected to a primary dynamic and static separation device. This primary dynamic and static separation device has a concentrate slurry outlet and a tailings slurry outlet. The tailings slurry outlet is connected to a fourth-stage thickener. The concentrated slurry outlet of the fourth-stage thickener is connected to a fourth-stage dewatering device. Both the underflow outlet of the primary cyclone separator and the concentrate slurry outlet of the primary dynamic and static separation device are connected to primary magnetic separation devices. The concentrate slurry outlet of the primary magnetic separation device is connected to a second-stage magnetic separation device. The concentrate slurry outlet of the second-stage magnetic separation device is connected to a third-stage magnetic separation device. The concentrate slurry outlet of the third-stage magnetic separation device is connected to a third-stage cyclone separator. The third-stage cyclone separator has an underflow outlet and an overflow outlet. Its overflow outlet is connected to a fourth-stage magnetic separation device. The concentrate slurry outlet of the tertiary hydrocyclone separator is connected to a four-stage hydrocyclone separator. The underflow outlet and overflow outlet of the four-stage hydrocyclone separator are connected to a two-stage dynamic and static separation unit. The two-stage dynamic and static separation unit has a concentrate slurry outlet and a secondary ore slurry outlet. The concentrate slurry outlet is connected to a first-stage thickener. The slurry outlet of the first-stage thickener is connected to a first-stage dewatering unit. The underflow outlet of the tertiary hydrocyclone separator is connected to a second spiral dewatering unit. The second spiral dewatering unit has a discharge port and a slurry outlet. The discharge port of the second spiral dewatering unit is connected to a second screening unit. The sand outlet of the second screening unit discharges high-purity fine sand. The slurry outlets of both the second screening unit and the second spiral dewatering unit are connected to a four-stage magnetic separator. The overflow outlet of the separation equipment is connected to a five-stage cyclone separator. The five-stage cyclone separator has an underflow outlet and an overflow outlet. Its overflow outlet is connected to a two-stage thickener. The concentrated slurry outlet of the two-stage thickener is connected to a two-stage dewatering device. The underflow outlet of the five-stage cyclone separator is also connected to a two-stage dynamic and static separation device. The secondary slurry outlet of the two-stage dynamic and static separation device is connected to a three-stage thickener. The concentrated slurry outlet of the three-stage thickener is connected to a three-stage dewatering device. The first-stage, second-stage, third-stage, and fourth-stage dewatering devices all have dewatering outlets, and all dewatering outlets are connected to a circulating water tank. The circulating water tank supplies water to the pulping equipment, primary magnetic separation equipment, secondary magnetic separation equipment, and tertiary magnetic separation equipment.The tailings slurry outlets of the primary, secondary, and tertiary magnetic separators are all connected to the first spiral dewatering unit. The tailings slurry outlets of the first spiral dewatering unit, the fourth-stage magnetic separator, and the overflow outlet of the secondary cyclone separator are all connected to the fourth-stage thickener. The separation system also includes a water storage tank that supplies water to the fourth-stage magnetic separator. The primary, secondary, tertiary, and fourth-stage thickeners all have overflow outlets. The overflow outlets of the primary and fourth-stage thickeners are connected to the inlet of the water storage tank, while the overflow outlets of the secondary and tertiary thickeners are connected to a circulating water tank. The inlet of the first screening unit is also connected to a liquid stone powder tank, which pumps liquid stone powder to the first screening unit. The finished product outlets of the primary, secondary, and tertiary dewatering units are transported to a temporary storage area via belt conveyors. The finished product outlet of the tertiary dewatering unit directly discharges the finished product, which is then transported to the temporary storage area by a transport vehicle.

[0017] Example

[0018] In this invention, the feeding equipment is a chain plate feeder, the pulping equipment is a shaftless drum screener, the first and second screening equipment are both screens, the primary and secondary dynamic-static separation equipment are both static separators, the primary magnetic separation equipment is a wet high-intensity magnetic plate separator, the secondary and tertiary magnetic separation equipment are both high-gradient vertical ring magnetic separators, the quaternary magnetic separation equipment is an electromagnetic slurry magnetic separator, the primary, secondary, tertiary, quaternary, and quinary cyclone separators are all hydrocyclones, the first and second spiral dewatering equipment are both spiral classifiers, the primary, secondary, tertiary, and quaternary thickening equipment are all thickeners, the primary, secondary, and quaternary dewatering equipment are all ceramic filters, and the quaternary dewatering equipment is a high-efficiency energy-saving diaphragm filter press.

[0019] In practical applications, two types of materials are supplied: liquid and solid. Solid stone powder particles are conveyed to the slurry preparation equipment via a conveyor belt through a feeding device. A circulating water tank supplies water to the slurry preparation equipment, which slurries the stone powder to form a mineral slurry and separates impurities and stones from the powder. The slurry is discharged through the stone outlet. The liquid stone powder tank serves as a screening device, supplying liquid stone powder via pump. The material is graded by the first screening device, with a portion of refined sand being separated. This refined sand is then dewatered by the first spiral dewatering device and discharged as construction sand. The mineral slurry sequentially passes through a primary cyclone separator and a secondary... The system consists of a primary hydrocyclone separator and a primary dynamic / static separation device to separate tailings slurry from concentrate slurry. The tailings slurry is concentrated by a four-stage thickener and dewatered by a four-stage dewatering device. The finished product is conveyed to a temporary storage area via a belt conveyor. The concentrate slurry is sequentially passed through a primary magnetic separator, a secondary magnetic separator, a tertiary magnetic separator, and a tertiary hydrocyclone separator. The slurry discharged from the underflow outlet of the tertiary hydrocyclone separator is dewatered by a second spiral dewatering device and screened by a second screening device to form high-purity fine sand. The concentrate slurry is discharged from the overflow outlet of the tertiary hydrocyclone separator and undergoes a fourth-stage magnetic separation. The equipment, including a four-stage hydrocyclone separator, separates the slurry. The overflow slurry from the four-stage hydrocyclone separator is then separated by a five-stage hydrocyclone separator, concentrated by a two-stage thickener, and dewatered by a two-stage dewatering unit. The finished product is then discharged to a temporary stockpile. The underflow slurry from the four-stage hydrocyclone separator enters a two-stage dynamic-static separation unit. The concentrate slurry is concentrated by a one-stage thickener and dewatered by a one-stage dewatering unit. The finished product is then discharged to a temporary stockpile. The secondary ore slurry from the two-stage dynamic-static separation unit is discharged into a three-stage thickener. After concentration and dewatering by a three-stage dewatering unit, the finished product is discharged to a temporary stockpile. The five-stage hydrocyclone separator... Slurry that does not meet the required grade at the bottom outlet of the selected equipment is re-entered into the secondary dynamic and static separation equipment for grading. The water discharged from the primary, secondary, tertiary, and quaternary dewatering equipment is recycled in a circulating water tank. After the above system sorting, the material discharged from the finished product outlets of the first spiral dewatering equipment, second spiral dewatering equipment, primary dewatering equipment, secondary dewatering equipment, tertiary dewatering equipment, and quaternary dewatering equipment contains different particle size grades of stone powder, which is suitable for various production processes with particle size requirements.

Claims

1. A stone powder sorting system, characterized in that, The system includes a feeding device that feeds materials to a slurry processing equipment via a belt conveyor. The slurry processing equipment has a stone outlet and a slurry outlet. The stone outlet transports stones to a temporary storage area via a belt conveyor. The slurry outlet is connected to a first screening device, which has a sand outlet and a slurry outlet. The sand outlet is connected to a first spiral dewatering device, which has a discharge port and a tailings slurry outlet. The discharge port discharges construction sand. The slurry outlet of the first screening device is connected to a primary cyclone separator, which has an underflow outlet and an overflow outlet. The overflow outlet is connected to a secondary cyclone separator, which also has... The system includes an underflow outlet and an overflow outlet. The underflow outlet is connected to a primary dynamic-static separation device, which has a concentrate slurry outlet and a tailings slurry outlet. The tailings slurry outlet is connected to a four-stage thickener, and the concentrated slurry outlet of the four-stage thickener is connected to a four-stage dewatering device. Both the underflow outlet of the primary cyclone separator and the concentrate slurry outlet of the primary dynamic-static separation device are connected to a primary magnetic separator. The concentrate slurry outlet of the primary magnetic separator is connected to a secondary magnetic separator, and the concentrate slurry outlet of the secondary magnetic separator is connected to a tertiary magnetic separator. The concentrate slurry outlet of the tertiary magnetic separator is connected to a tertiary cyclone separator, which has an underflow outlet and an overflow outlet. The outlet is connected to a four-stage magnetic separator. The concentrate slurry outlet of the four-stage magnetic separator is connected to a four-stage hydrocyclone separator. The underflow outlet and overflow outlet of the four-stage hydrocyclone separator are connected to a two-stage dynamic and static separation device. The two-stage dynamic and static separation device has a concentrate slurry outlet and a secondary slurry outlet. The concentrate slurry outlet is connected to a first-stage thickener. The slurry outlet of the first-stage thickener is connected to a first-stage dewatering device. The underflow outlet of the three-stage hydrocyclone separator is connected to a second spiral dewatering device. The second spiral dewatering device has a discharge port and a slurry outlet. The discharge port of the second spiral dewatering device is connected to a second screening device. The discharge from the sand outlet of the second screening device is high-purity fine sand. The second screening device and the second spiral dewatering device... The slurry outlets of the dewatering equipment are all connected to a four-stage magnetic separator. The overflow outlet of the four-stage cyclone separator is connected to a five-stage cyclone separator. The five-stage cyclone separator has an underflow outlet and an overflow outlet. Its overflow outlet is connected to a two-stage thickener. The concentrated slurry outlet of the two-stage thickener is connected to a two-stage dewatering equipment. The underflow outlet of the five-stage cyclone separator is also connected to a two-stage dynamic-static separation equipment. The secondary slurry outlet of the two-stage dynamic-static separation equipment is connected to a three-stage thickener. The concentrated slurry outlet of the three-stage thickener is connected to a three-stage dewatering equipment. The first, second, third, and fourth-stage dewatering equipment all have dewatering outlets, and all dewatering outlets are connected to a circulating water tank.The circulating water tank supplies water to the pulping equipment, primary magnetic separator, secondary magnetic separator, and tertiary magnetic separator. The tailings slurry outlets of the primary, secondary, and tertiary magnetic separators are all connected to the first spiral dewatering unit. The tailings slurry outlets of the first spiral dewatering unit, the fourth-stage magnetic separator, and the overflow outlet of the secondary cyclone separator are all connected to the fourth-stage thickening unit. The sorting system is also equipped with a water storage tank, which supplies water to the four-stage magnetic separator. The first-stage, second-stage, third-stage, and fourth-stage concentration equipment are all equipped with overflow outlets. The overflow outlets of the first-stage and fourth-stage concentration equipment are connected to the inlet of the water storage tank, and the overflow outlets of the second-stage and third-stage concentration equipment are connected to the circulating water pool.

2. The stone powder sorting system according to claim 1, characterized in that, The inlet of the first screening device is also connected to a liquid stone powder tank, which pumps liquid stone powder to the first screening device via a pump.

3. The stone powder sorting system according to claim 1, characterized in that, The finished products from the primary, secondary, and quaternary dehydration equipment are all transported to a temporary storage yard via a conveyor belt.

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