Wet-type preparation and addition method of activated carbon powder

Abstract

The invention relates to a wet preparation and addition method of activated carbon powder, belongs to the metallurgical industry, and particularly belongs to the field of ore dressing. The bagged activated carbon is conveyed to a drum screen of a full-automatic bale breaker through a feeding belt, activated carbon powder and packaging bags are stripped, the activated carbon powder enters a stock bin, and waste packages enter a waste bag collecting bin; the activated carbon powder enters a temporary storage bin from the bottom of the stock bin and a bin body of the vacuum feeding machine in sequence, and finally enters a premixing device at the bottom of the temporary storage bin and a jet pipe to be wetted by water, and premixed activated carbon is obtained; the premixed activated carbon enters an activated carbon mixing tank through a pressure pipeline and is fully stirred and uniformly mixed with water to obtain activated carbon slurry; and adding the activated carbon slurry to a drug receiving point through a diaphragm metering pump. The technical problems that in the dry type adding process of activated carbon powder, the environment is polluted, and accurate adding cannot be achieved are solved.

Description

Technical Field

[0001] The invention relates to a method for wet preparation and addition of activated carbon powder, and belongs to the metallurgical industry, in particular to the field of ore dressing. Background Art

[0002] Nonferrous metals are the basic materials for the development of the national economy. Copper and lead are widely used in the power, telecommunications and national defense industries. Copper and lead elements usually exist in the same ore in a symbiotic form with zinc elements, forming copper-lead-zinc polymetallic ores. At present, the beneficiation process of copper-lead-zinc polymetallic ores is mainly based on flotation. The copper-lead separation effect determines the product quality. In the copper-lead separation process, activated carbon powder is generally added as a de-agent to create favorable conditions for the subsequent copper-lead separation. How to safely and accurately add activated carbon powder is crucial. Dry powder addition is generally used in China, such as the Chinese invention patent "A powdered activated carbon dosing system for emergency water treatment", publication number CN114314731A, which discloses that the powdered activated carbon tank truck enters the storage tank through the feed conveying subsystem, and then the powdered activated carbon is quantitatively delivered to the carbon slurry mixture preparation subsystem through the discharge conveying subsystem. The powdered activated carbon is made into a carbon slurry mixture of a set concentration through the system, and then the activated carbon slurry mixture is added to the raw water pipeline by the dosing subsystem. The technical solution is that the cost of transporting activated carbon powder by tank truck is high. The raw materials for activated carbon production are coconut shells, etc. If the raw materials are far away from the production site, the cost of transporting by tank truck is too high; second, it is necessary to build a storage tank, which is high and can only be placed in the open air. In rainy weather, it will cause the activated carbon to become compacted and difficult to transport; third, the spiral feeder cannot be sealed during the process of transporting activated carbon powder, causing the activated carbon powder to spread into the air and pollute the surrounding environment; fourth, due to the inability to seal the activated carbon configuration tank and the specific gravity of the activated carbon powder (0.3-0.6g / cm 3 ) is small, causing a large amount of it to float on the water surface, making it impossible to accurately add activated carbon powder.

[0003] Therefore, the industry has been looking for a system and method for accurately adding activated carbon powder to the slurry under the premise of safety and environmental protection. On the one hand, the floor space cannot be too large and it needs to be arranged at the same time as the ore dressing and dosing system for easy management. On the other hand, the investment cannot be too large. The present invention provides a method for wet preparation and addition of activated carbon powder that is safe, environmentally friendly, efficient, low-investment, and highly adaptable. Summary of the invention

[0004] The present invention provides a method for wet preparation and addition of activated carbon powder, and solves the technical problem that the activated carbon powder pollutes the environment and cannot be added accurately during dry addition, which leads to incomplete copper-lead separation and drug removal, serious metal mutual inclusion in copper-lead separation, reduced copper-lead recovery rate, affecting the quality of copper concentrate and lead concentrate products, thereby causing a waste of resources.

[0005] The present invention is achieved through the following technical solutions.

[0006] A method for wet preparation and addition of activated carbon powder,

[0007] S1. The bagged activated carbon is transported to the drum screen of the fully automatic unpacking machine through the feeding belt to peel the activated carbon powder and the packaging bag. The activated carbon powder enters the silo and the waste packaging enters the waste bag collection bin;

[0008] S2. The bottom of the silo is connected to the vacuum loader bin through a vacuum loader, and a temporary storage bin is provided at the bottom of the vacuum loader bin; the activated carbon powder enters the temporary storage bin from the bottom of the silo and the vacuum loader bin in sequence, and finally enters the pre-mixing device at the bottom of the temporary storage bin and the water in the jet tube to be wetted to obtain pre-mixed activated carbon;

[0009] S3. The premixed activated carbon enters the activated carbon mixing tank through a pressure pipe and is fully stirred and mixed with water to obtain an activated carbon slurry;

[0010] S4. Add the activated carbon slurry to the receiving point through a diaphragm metering pump.

[0011] The cutting speed of the fully automatic bagging machine in S1 is 50-100 r / min, and the spiral speed of the drum screen is 10-20 r / min.

[0012] The negative pressure of the vacuum feeder bin in S2 is 20-50 kPa, and the mass ratio of activated carbon to water during the wetting process is 1-2:1.

[0013] The activated carbon slurry in S3 has a slurry concentration of 10-20 wt%, and a stirring rate of 100-320 r / min

[0014] The S4 diaphragm metering pump adds activated carbon slurry at a flow rate of 3 to 10 L / min.

[0015] An activated carbon powder wet preparation and addition device comprises a feeding belt, a fully automatic unpacking machine, a vacuum feeding machine, a temporary storage bin, a premixing device, a jet tube, an activated carbon mixing tank and a diaphragm metering pump, wherein the feeding belt is connected to the top of the fully automatic unpacking machine, and a blade and a drum screen are arranged inside the fully automatic unpacking machine; a silo is arranged at the bottom of the fully automatic unpacking machine, and a waste bag collection bin is arranged at the side of the automatic unpacking machine;

[0016] The silo is connected to the vacuum loader bin body of the vacuum loader through a pipeline adapter. The negative pressure of the vacuum loader bin body of the vacuum loader is adjusted by a vacuum loader vortex pump. A filter element is provided on the top side of the vacuum loader bin body. The bottom of the vacuum loader bin body is connected to the temporary storage bin through a discharge valve. The temporary storage bin is connected to the premixing device through a flow control valve. A jet tube is passed through the premixing device. The premixing device is connected to the activated carbon mixing tank located on the side of the premixing device through a pressure pipeline.

[0017] The activated carbon powder on the filter element on the top side of the vacuum loader bin is sprayed into the temporary storage bin through the air compressor and cold dryer.

[0018] The activated carbon mixing tank is equipped with a dissolved water system, a mixer and a sealed upper cover with a maintenance access hole. The activated carbon mixing tank is also equipped with a liquid level gauge and a water curtain dust collector to prevent carbon powder from diffusing in the air and maintain the pressure balance inside and outside the mixing tank. The activated carbon mixing tank is equipped with an overflow port at the top, an emptying port and a liquid outlet at the bottom, and a pressure sensor to control the liquid level to achieve linkage control of solid feeding and dissolved water.

[0019] When the activated carbon slurry in the activated carbon mixing tank needs to be stored, the activated carbon slurry in the activated carbon mixing tank is transported to the activated carbon high-level medicine box for storage and stirring through a slurry pump; the activated carbon solution in the high-level medicine box flows to the constant liquid tank through the switch valve at the bottom, and the constant liquid tank ensures the stability of the liquid level through a floating float. The activated carbon solution in the constant liquid tank is added to the receiving point through a diaphragm metering pump.

[0020] The above-mentioned premixing device and activated carbon mixing tank are adjacent to each other and are completely sealed.

[0021] The beneficial effects of the present invention are:

[0022] (1) The present invention is provided with a fully automatic unpacking machine, which directly transports the bagged activated carbon to the top of the fully automatic unpacking machine through a feeding belt, thereby achieving fully automatic unpacking, high efficiency and labor saving;

[0023] (2) The present invention directly draws the activated carbon powder in the silo of the fully automatic unpacking machine into the silo of the vacuum loader for storage through the vacuum loader, and then puts it into the temporary storage silo directly connected to the lower part of the silo of the vacuum loader through the discharge valve of the vacuum loader, and then enters the pre-mixing device, enters the jet pipe, and directly enters the activated carbon solution prepared in the activated carbon mixing tank. In the whole process, there is no need to separately build a storage tank and a spiral feeder, the whole device has a good sealing effect, and can accurately add activated carbon powder.

[0024] (3) The process flow of the present invention is reasonably designed, the addition of reagents is accurate, the operation is simple, and there is no environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the process of the present invention;

[0026] Figure 2 It is a plan view of the fully automatic unpacking machine and its conveying equipment of the present invention;

[0027] Figure 3It is a schematic diagram of the connection between the vacuum feeder of the present invention and the material bin of the fully automatic unpacking machine;

[0028] Figure 4 This is a diagram of an automatic preparation system for activated carbon slurry of the present invention;

[0029] Figure 5 It is a top view of the automatic preparation system of activated carbon slurry of the present invention;

[0030] Figure 6 This is a physical picture of the feeding belt in the conveying equipment of the fully automatic unpacking machine of the present invention;

[0031] Figure 7 This is a physical picture of the fully automatic unpacking machine of the present invention;

[0032] Figure 8 This is a physical picture of the vacuum loading machine bin of the present invention;

[0033] Fig. 9 This is a physical picture of the temporary storage warehouse of the present invention.

[0034] In the figure: 1-feeding belt, 2-automatic unpacking machine, 3-silo, 4-vacuum loader, 5-vortex pump, 6-vacuum loader bin, 7-pipeline adapter, 8-filter element, 9-discharge valve, 10-temporary storage bin, 11-air compressor, 12-cold dryer, 13-flow control valve, 14-pre-mixing device, 15-jet tube, 16-activated carbon mixing tank, 17-mixer, 18-liquid level meter, 19-water curtain dust collector, 20-overflow port, 21-emptying port, 22-liquid outlet. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Example 1

[0037] like Figures 2 to 9 As shown, the equipment for wet preparation and addition of activated carbon powder includes a feeding belt 1, a fully automatic unpacking machine 2, a vacuum feeding machine 4, a temporary storage bin 10, a premixing device 14, a jet tube 15, an activated carbon mixing tank 16 and a diaphragm metering pump, the feeding belt 1 is connected to the top of the fully automatic unpacking machine 2, and a blade and a drum screen are arranged inside the fully automatic unpacking machine 2; a silo 3 is arranged at the bottom of the fully automatic unpacking machine 2, and a waste bag collection bin is arranged on the side of the automatic unpacking machine 2;

[0038] The silo 3 is connected to the vacuum loader bin body 6 of the vacuum loader 4 through the pipe adapter 7. The negative pressure of the vacuum loader bin body 6 of the vacuum loader 4 is adjusted by the vortex pump 5 of the vacuum loader 4. A filter element 8 is provided on the top side of the vacuum loader bin body 6. The bottom of the vacuum loader bin body 6 is connected to the temporary storage bin 10 through the discharge valve 9. The temporary storage bin 10 is connected to the premixing device 14 through the flow control valve 13. The jet tube 15 is passed into the premixing device 14. The premixing device 14 is connected to the activated carbon mixing tank 16 located on the side of the premixing device 14 through a pressure pipeline.

[0039] The activated carbon powder on the filter element 8 on the top side of the vacuum feeder bin body 6 is sprayed into the temporary storage bin 10 through the air compressor 11 and the cold dryer 12.

[0040] The activated carbon mixing tank 16 is provided with a dissolved water system, a mixer 17 and a sealed upper cover, and a maintenance access hole is left in the upper cover. The activated carbon mixing tank 16 is also provided with a liquid level meter 18 and a water curtain dust collector 19 to prevent carbon powder from diffusing in the air and maintain the pressure balance inside and outside the mixing tank. The activated carbon mixing tank 16 is provided with an overflow port 20 at the top, an emptying port 21 and a liquid outlet 22 at the bottom, and a pressure sensor to control the liquid level to achieve linkage control of solid feeding and dissolved water.

[0041] When the activated carbon slurry in the activated carbon mixing tank 16 needs to be stored, the activated carbon slurry in the activated carbon mixing tank 16 is transported to the activated carbon high-level medicine box for storage and stirring through a slurry pump; the activated carbon solution in the high-level medicine box flows to the constant liquid tank through the switch valve at the bottom, and the constant liquid tank ensures the stability of the liquid level in the constant liquid tank through a floating float. The activated carbon solution in the constant liquid tank is added to the receiving point through a diaphragm metering pump.

[0042] like Figure 1 As shown, the method for wet preparation and addition of activated carbon powder is specifically as follows:

[0043] S1. The bagged activated carbon is transported to the drum screen of the fully automatic unpacking machine 2 through the feeding belt 1 to separate the activated carbon powder and the packaging bag (cut at a knife speed of 80 r / min and separated in the drum screen at a rotation speed of 12 r / min), the activated carbon powder enters the silo 3, and the waste packaging enters the waste bag collection bin;

[0044] S2. Specifically:

[0045] The bottom of S2.1 silo 3 is connected to vacuum loader bin 6 through vacuum loader 4, and a temporary storage bin 10 is provided at the bottom of vacuum loader bin 6; the negative pressure of vacuum loader bin 6 is set to 30kpa through vortex pump 5, and air is added at the output port of silo 3 of fully automatic unpacking machine 2 through pipeline adapter 7, so that the air forms flow and the carbon powder in silo 3 of fully automatic unpacking machine 2 drives the material to move along the pipeline. After the material is sucked into vacuum loader bin 6 of vacuum loader 4, it is separated by filter element 8 in vacuum loader bin 6, and air comes out of filter element 8, and the material is temporarily stored in vacuum loader bin 6;

[0046] S2.2 When the material suction time is reached, the discharge valve 9 of the vacuum feeder 4 is opened, and the material is placed in the temporary storage bin 10. The carbon powder adsorbed on the filter element 8 is sprayed into the temporary storage bin 10 by using the dry air provided by the (air compressor 11 and cold dryer 12). The filter element 8 is sprayed in each cycle to prevent clogging. The equipment is equipped with a pulse back-blowing air bag. The carbon powder in the temporary storage bin 10 enters the pre-mixing device 14 through the flow control valve 13. The carbon powder enters the jet tube 15 through the negative pressure generated by the water flow, is moistened with the water in the jet tube 15, and enters the activated carbon mixing tank 16 under the action of pressure.

[0047] S3. The premixed activated carbon is introduced into the activated carbon mixing tank 16 through a pressure pipe and mixed with water to obtain an activated carbon slurry; the activated carbon slurry is prepared by stirring at a rate of 300 r / min to obtain a slurry concentration of 50 wt% activated carbon slurry;

[0048] S4. Add the activated carbon slurry to the receiving point through a diaphragm metering pump at a flow rate of 5 L / min.

[0049] Example 2

[0050] like Figures 2 to 9 As shown, the equipment for wet preparation and addition of activated carbon powder includes a feeding belt 1, a fully automatic unpacking machine 2, a vacuum feeding machine 4, a temporary storage bin 10, a premixing device 14, a jet tube 15, an activated carbon mixing tank 16 and a diaphragm metering pump, the feeding belt 1 is connected to the top of the fully automatic unpacking machine 2, and a blade and a drum screen are arranged inside the fully automatic unpacking machine 2; a silo 3 is arranged at the bottom of the fully automatic unpacking machine 2, and a waste bag collection bin is arranged on the side of the automatic unpacking machine 2;

[0051] The silo 3 is connected to the vacuum loader bin body 6 of the vacuum loader 4 through the pipe adapter 7. The negative pressure of the vacuum loader bin body 6 of the vacuum loader 4 is adjusted by the vortex pump 5 of the vacuum loader 4. A filter element 8 is provided on the top side of the vacuum loader bin body 6. The bottom of the vacuum loader bin body 6 is connected to the temporary storage bin 10 through the discharge valve 9. The temporary storage bin 10 is connected to the premixing device 14 through the flow control valve 13. The jet tube 15 is passed into the premixing device 14. The premixing device 14 is connected to the activated carbon mixing tank 16 located on the side of the premixing device 14 through a pressure pipeline.

[0052] The activated carbon powder on the filter element 8 on the top side of the vacuum feeder bin body 6 is sprayed into the temporary storage bin 10 through the air compressor 11 and the cold dryer 12.

[0053] The activated carbon mixing tank 16 is provided with a dissolved water system, a mixer 17 and a sealed upper cover, and a maintenance access hole is left in the upper cover. The activated carbon mixing tank 16 is also provided with a liquid level meter 18 and a water curtain dust collector 19 to prevent carbon powder from diffusing in the air and maintain the pressure balance inside and outside the mixing tank. The activated carbon mixing tank 16 is provided with an overflow port 20 at the top, an emptying port 21 and a liquid outlet 22 at the bottom, and a pressure sensor to control the liquid level to achieve linkage control of solid feeding and dissolved water.

[0054] When the activated carbon slurry in the activated carbon mixing tank 16 needs to be stored, the activated carbon slurry in the activated carbon mixing tank 16 is transported to the activated carbon high-level medicine box for storage and stirring through a slurry pump; the activated carbon solution in the high-level medicine box flows to the constant liquid tank through the switch valve at the bottom, and the constant liquid tank ensures the stability of the liquid level in the constant liquid tank through a floating float. The activated carbon solution in the constant liquid tank is added to the receiving point through a diaphragm metering pump.

[0055] like Figure 1 As shown, the method for wet preparation and addition of activated carbon powder is specifically as follows:

[0056] S1. The bagged activated carbon is transported to the drum screen of the fully automatic unpacking machine 2 through the feeding belt 1 to peel the activated carbon powder and the packaging bag (cut at a knife speed of 100r / min and separated in the drum screen at a speed of 15r / min), the activated carbon powder enters the silo 3, and the waste packaging enters the waste bag collection bin;

[0057] S2. Specifically:

[0058] The bottom of S2.1 silo 3 is connected to vacuum loader bin 6 through vacuum loader 4, and a temporary storage bin 10 is provided at the bottom of vacuum loader bin 6; the negative pressure of vacuum loader bin 6 is set to 25kpa through vortex pump 5, and air is added at the output port of silo 3 of full-automatic unpacking machine 2 through pipeline adapter 7, so that the air forms flow and the carbon powder in silo 3 of full-automatic unpacking machine 2 drives the material to move along the pipeline. After the material is sucked into vacuum loader bin 6 of vacuum loader 4, it is separated by filter element 8 in vacuum loader bin 6, and air comes out of filter element 8, and the material is temporarily stored in vacuum loader bin 6;

[0059] S2.2 When the material suction time is reached, the discharge valve 9 of the vacuum feeder 4 is opened, and the material is placed in the temporary storage bin 10. The carbon powder adsorbed on the filter element 8 is sprayed into the temporary storage bin 10 by using the dry air provided by the (air compressor 11 and cold dryer 12). The filter element 8 is sprayed in each cycle to prevent clogging. The equipment is equipped with a pulse back-blowing air bag. The carbon powder in the temporary storage bin 10 enters the pre-mixing device 14 through the flow control valve 13. The carbon powder enters the jet tube 15 through the negative pressure generated by the water flow, is moistened with the water in the jet tube 15, and enters the activated carbon mixing tank 16 under the action of pressure.

[0060] S3. The premixed activated carbon is introduced into the activated carbon mixing tank 16 through a pressure pipe and mixed with water to obtain an activated carbon slurry; the activated carbon slurry is prepared by stirring at a rate of 220 r / min to obtain a slurry concentration of 45 wt%;

[0061] S4. Add the activated carbon slurry to the receiving point through a diaphragm metering pump at a flow rate of 6 L / min.

[0062] Example 3

[0063] like Figures 2 to 9 As shown, the equipment for wet preparation and addition of activated carbon powder includes a feeding belt 1, a fully automatic unpacking machine 2, a vacuum feeding machine 4, a temporary storage bin 10, a premixing device 14, a jet tube 15, an activated carbon mixing tank 16 and a diaphragm metering pump, the feeding belt 1 is connected to the top of the fully automatic unpacking machine 2, and a blade and a drum screen are arranged inside the fully automatic unpacking machine 2; a silo 3 is arranged at the bottom of the fully automatic unpacking machine 2, and a waste bag collection bin is arranged on the side of the automatic unpacking machine 2;

[0064] The silo 3 is connected to the vacuum loader bin body 6 of the vacuum loader 4 through the pipe adapter 7. The negative pressure of the vacuum loader bin body 6 of the vacuum loader 4 is adjusted by the vortex pump 5 of the vacuum loader 4. A filter element 8 is provided on the top side of the vacuum loader bin body 6. The bottom of the vacuum loader bin body 6 is connected to the temporary storage bin 10 through the discharge valve 9. The temporary storage bin 10 is connected to the premixing device 14 through the flow control valve 13. The jet tube 15 is passed into the premixing device 14. The premixing device 14 is connected to the activated carbon mixing tank 16 located on the side of the premixing device 14 through a pressure pipeline.

[0065] The activated carbon powder on the filter element 8 on the top side of the vacuum feeder bin body 6 is sprayed into the temporary storage bin 10 through the air compressor 11 and the cold dryer 12.

[0066] The activated carbon mixing tank 16 is provided with a dissolved water system, a mixer 17 and a sealed upper cover, and a maintenance access hole is left in the upper cover. The activated carbon mixing tank 16 is also provided with a liquid level meter 18 and a water curtain dust collector 19 to prevent carbon powder from diffusing in the air and maintain the pressure balance inside and outside the mixing tank. The activated carbon mixing tank 16 is provided with an overflow port 20 at the top, an emptying port 21 and a liquid outlet 22 at the bottom, and a pressure sensor to control the liquid level to achieve linkage control of solid feeding and dissolved water.

[0067] When the activated carbon slurry in the activated carbon mixing tank 16 needs to be stored, the activated carbon slurry in the activated carbon mixing tank 16 is transported to the activated carbon high-level medicine box for storage and stirring through a slurry pump; the activated carbon solution in the high-level medicine box flows to the constant liquid tank through the switch valve at the bottom, and the constant liquid tank ensures the stability of the liquid level in the constant liquid tank through a floating float. The activated carbon solution in the constant liquid tank is added to the receiving point through a diaphragm metering pump.

[0068] like Figure 1 As shown, the method for wet preparation and addition of activated carbon powder is specifically as follows:

[0069] S1. The bagged activated carbon is transported to the drum screen of the fully automatic unpacking machine 2 through the feeding belt 1 to separate the activated carbon powder and the packaging bag (cut at a knife speed of 60 r / min and separated in the drum screen at a rotation speed of 13 r / min), the activated carbon powder enters the silo 3, and the waste packaging enters the waste bag collection bin;

[0070] S2. Specifically:

[0071] The bottom of S2.1 silo 3 is connected to vacuum loader bin 6 through vacuum loader 4, and a temporary storage bin 10 is provided at the bottom of vacuum loader bin 6; the negative pressure of vacuum loader bin 6 is set to 48kpa through vortex pump 5, and air is added at the output port of silo 3 of fully automatic unpacking machine 2 through pipeline adapter 7, so that the air forms flow and the carbon powder in silo 3 of fully automatic unpacking machine 2 drives the material to move along the pipeline. After the material is sucked into vacuum loader bin 6 of vacuum loader 4, it is separated by filter element 8 in vacuum loader bin 6, and air comes out of filter element 8, and the material is temporarily stored in vacuum loader bin 6;

[0072] S2.2 When the material suction time is reached, the discharge valve 9 of the vacuum feeder 4 is opened, and the material is placed in the temporary storage bin 10. The carbon powder adsorbed on the filter element 8 is sprayed into the temporary storage bin 10 by using the dry air provided by the (air compressor 11 and cold dryer 12). The filter element 8 is sprayed in each cycle to prevent clogging. The equipment is equipped with a pulse back-blowing air bag. The carbon powder in the temporary storage bin 10 enters the pre-mixing device 14 through the flow control valve 13. The carbon powder enters the jet tube 15 through the negative pressure generated by the water flow, is moistened with the water in the jet tube 15, and enters the activated carbon mixing tank 16 under the action of pressure.

[0073] S3. The premixed activated carbon is introduced into the activated carbon mixing tank 16 through a pressure pipe and mixed with water to obtain an activated carbon slurry; the activated carbon slurry is prepared by stirring at a rate of 310 r / min to obtain a slurry concentration of 45 wt%;

[0074] S4. Add the activated carbon slurry to the receiving point through a diaphragm metering pump at a flow rate of 5 L / min.

[0075] The specific implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A method for wet preparation and addition of activated carbon powder, characterized in that: S1. The bagged activated carbon is transported to the drum screen of the fully automatic unpacking machine through the feeding belt to peel the activated carbon powder and the packaging bag. The activated carbon powder enters the silo and the waste packaging enters the waste bag collection bin; S2. The bottom of the silo is connected to the vacuum loader bin through a vacuum loader, and a temporary storage bin is provided at the bottom of the vacuum loader bin; the activated carbon powder enters the temporary storage bin from the bottom of the silo and the vacuum loader bin in sequence, and finally enters the pre-mixing device at the bottom of the temporary storage bin and the water in the jet tube to be wetted to obtain pre-mixed activated carbon; S3. The premixed activated carbon enters the activated carbon mixing tank through a pressure pipe and is fully stirred and mixed with water to obtain an activated carbon slurry; S4. Add the activated carbon slurry to the receiving point through a diaphragm metering pump.

2. The method for wet preparation and addition of activated carbon powder according to claim 1, characterized in that: The cutting speed of the fully automatic bagging machine in S1 is 50-100 r / min, and the spiral speed of the drum screen is 10-20 r / min.

3. The method for wet preparation and addition of activated carbon powder according to claim 1, characterized in that: The negative pressure of the vacuum feeder bin in S2 is 20-50 kPa, and the mass ratio of activated carbon to water during the wetting process is 1-2:

1.

4. The method for wet preparation and addition of activated carbon powder according to claim 1, characterized in that: The activated carbon slurry in S3 has a slurry concentration of 10-20 wt %, and a stirring rate of 100-320 r / min.

5. The method for wet preparation and addition of activated carbon powder according to claim 1, characterized in that: The S4 diaphragm metering pump adds activated carbon slurry at a flow rate of 3 to 10 L / min.

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