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TSTO Patents

CN101342480
Tetroxide tetrsilver coal absorbent charcoal, preparation method and uses thereof


Inventor(s):     KAIMING JIANG, etal.
    
The invention has discloses a tetrasilver tetroxide coal activated carbon, a preparation method and an application; the tetrasilver tetroxide coal activated carbon contains coal activated carbon and tetrasilver tetroxide; the tetrasilver tetroxide is adsorbed on the surface or the aperture of the coal activated carbon. The preparation method is as follows: the coal activated carbon is washed and dried for stand-by; the tetrasilver tetroxide is blended with an alkalescent solvent; the blended liquid is sprayed on the coal activated carbon; a silver-loaded coal activated carbon is re-dried so as to obtain the tetrasilver tetroxide coal activated carbon. As a filter material, the tetrasilver tetroxide coal activated carbon is applied in a water cleaner and a direct drinking water supply project. The silver on the surface of the tetrasilver tetroxide coal activated carbon prepared by the preparation method cannot fall off; the tetrasilver tetroxide coal activated carbon can be applied to the water cleaner and other direct drinking water projects to effectively adsorb and kill bacteria and a hazardous substance and produce drinking water which is clean and useful for human health and meets a hygienic standard of people.

DESCRIPTION
[0001]

TECHNICAL FIELD
[0002]

The present invention relates to a tetroxide four silver activated carbon from coal preparation methods and applications as a filter material.
[0003]

Background technique
[0004]

At present, the domestic market a wide range of filter material many different purposes and disadvantages.
The activated carbon is one of them, using activated carbon as the filter media manufactured to a certain time, because the activated carbon adsorption of itself only, no sterilization effect, after a certain period of time a large number of activated carbon adsorption of organic contaminants, the microbial pole easy to breed, decomposition of organic matter under the action of microorganisms on activated carbon interface, allowing the gradual decomposition of organic nitrogen-protein nitrogen, ammonia nitrogen, nitrite nitrogen, making the activated carbon filter to increase the nitrite content of the water will be in the activated carbon within and filter bed hereby raw bacteria to produce secondary pollution, it will not only reach the purpose of water purification, it will pollute the water.
In recent years, with the sterilization principle of silver gradually recognized, emerging markets a wide range of permeability silver (or silver) activated carbon, the manufacturing method for the solution of most of the immersion method, there are different degrees of loss of silver, silver is a heavy metal , it is harmful to the body, how to solve the problem of silver activated carbon in the fall of silver water is a problem.
[0005]

SUMMARY OF THE INVENTION
[0006]

OBJECTS OF THE INVENTION:

The purpose of the present invention to provide a both adsorption of impurities, dirt, and other harmful substances can sterilization, silver in the treatment process at the same time easy to fall off, and can be applied directly to the drinking water filtration tetroxide four silver activated carbon from coal.
[0007]

Another object of the present invention to provide a method for preparing the above tetroxide four silver activated carbon from coal in.
[0008]

Another object of the present invention is to provide the tetroxide four silver activated carbon from coal applications.
[0009]

Technical Solution: A tetroxide four silver activated carbon from coal, which includes coal activated carbon and tetroxide four silver, the tetroxide four silver tightly adsorbed on the inner surface of the activated carbon from coal or charcoal aperture.
[0010]

Per 100 g tetroxide four silver activated carbon from coal in tetroxide four silver content of not less than 0.1 mg.
[0011]

The Coal activated carbon 9 to 11 mesh.
[0012]

It said tetroxide four silver activated carbon from coal preparation method comprises the following steps:
[0013]

1), the activated carbon from coal after washing and drying stand; tetroxide four silver and a weight ratio of PH value 0.5 ~ 1 ‰ proportions in a weak alkaline solvent 7.0 to 7.5;
[0014]

2) the step 1) spraying the mixture to a temperature at 50 ~ 80 ? activated carbon from coal on;
[0015]

3) Step 2) obtained silver activated carbon from coal at 70 ~ 90 ?, drying in the light of the anti-seal equipment 8 to 15 minutes to obtain tetroxide four silver activated carbon from coal.
[0016]

The above step (1) of the weakly basic solvent is ammonia, sodium hydroxide solution, calcium hydroxide solution in one.
[0017]

The above-described activated carbon from coal is 9 to 11 mesh, the quality of GB / T7702 standards.
[0018]

Tetroxide four silver coal activated carbon as a filter material in water purifier and drinking water supply project equipment.
[0019]

Tetroxide four silver activated carbon from coal is the use of activated carbon from coal-rich cellular structure, high strength, reasonable ratio, the four-four silver oxide coating to the surface of activated carbon from coal, at a certain temperature, time, matter free enthalpy increases, the molecule can absorb energy of physical adsorption and chemisorption excitation probability of entry, in other words, since the excitation energy between molecules, the surface-treated activated carbon, active surface free radicals, combined with silver ions close, substance the possibility of combining the Intermolecular transition to form covalent bonds increases, and thus will not fall off due to water erosion, thereby obtaining a can absorb and kill the harmful substances, bacteria tetroxide four silver activated carbon from coal.
[0020]

Beneficial effects: tetroxide four silver coal activated carbon of the present invention can effectively remove chlorine, heavy metals, organic pollutants, can only be solved in the prior art adsorption of impurities, bacteria, and not be able to kill and cause secondary pollution The problem.

The preparation process of the present invention obtained tetroxide four silver activated carbon from coal will not fall off the surface of the silver process is simple, can achieve large-scale industrial production.

The tetroxide four silver activated carbon from coal applied to purify water or other drinking water projects, especially in bottled water production, without additional ozone disinfection process can be long-term preservation, and the treated water is not easy to scale, taste significantly improved; the treated water retains natural minerals beneficial to human body; water quality alkaline; dissolved oxygen increased by an average of about 30%; with long-lasting inhibition of bacteria, viruses, algae effect, in line with domestic and foreign experts recognized health water quality standards.
[0021]

Brief Description
[0022]

Figure 1 is a schematic of activated carbon washing machine.
[0023]

Figure 2 is a front view of FIG. 1.
[0024]

Figure 3 is a schematic of the dryer.
[0025]

Figure 4 is a front view of FIG.
[0026]



DETAILED DESCRIPTION
[0027]

Below in conjunction with embodiments of the present invention will be further described below.
[0028]

The present invention discloses a tetroxide four silver activated carbon from coal, which includes coal activated carbon and tetroxide four silver (Ag4O4), the tetroxide four silver tightly adsorbed in the activated carbon from coal or activated carbon pore surface, per 100 g tetroxide four silver activated carbon from coal in tetroxide four silver content of not less than 0.1 mg of the activated carbon from coal quality in line with GB / T7702 standard, the choice of 9 to 11 purpose activated carbon from coal.
Activated carbon adsorption, while silver has a bactericidal effect, a combination of both of the present invention can absorb and kill the harmful substances, ensuring every 100 grams tetroxide four silver activated carbon from coal in tetroxide four silver content of not less than 0.1 milligrams , have adsorption of impurities, harmful substances and kill harmful bacteria.
[0029]

Example 1: 10 mesh coal activated charcoal washing machine 100kg in clean and dry; 1 g Ag4O4 with ammonia solvent 1000 g PH value of 7.2 was diluted into a solution by a metering pump and atomizing spray device to spray drying After having the activated carbon from coal 60 ?; then, silver activated carbon from coal at 80 ? temperature light tight seal drier, through convective heat, hot air conduction, frequency conversion fans: 10Hz dry, lasted 13 minutes Under conditions to obtain 100Kg tetroxide four silver activated carbon from coal, obtained 100Kg tetroxide four silver activated carbon from coal contains 0.8g tetroxide four silver.
[0030]

1 and 2, the activated carbon washing machine comprises a frame 1, the drain 2, cages 3, conveying means 4, plus hydraulic scour bubble cleaning means 5, 6 corrective devices, spray rinsing device 7, wind and shot shoot down feeding device 8, 9 and trough microseismic draining means 10.

Both sides with drain rack 1 2 delivery device 4 is disposed on the frame 1, 4 left to right above the delivery device is provided with cages 3, correcting device 6, spray rinsing device 7, the wind and Sign downed feeding device 8, cages three features bubble cleaning and hydraulic scour device 5, the wind and shot shoot down feeding device 8 is provided below the chute 10, the chute 10 is provided below the microseismic draining means 9.
[0031]

3 above the horizontal segment cages located in the left side of the delivery device 4, cages 3 to 20 mesh stainless steel mesh belt.

Activated carbon to be cleaned cages placed on the 3, 3 above the cages provided in two parallel planes cages 3 water pipe, water pipe connected to the inlet end of the water tank, the tank is connected to the pump inlet side, with a nozzle, the nozzle on the spray pipe running direction towards the transport device 4 to the nozzle of the water wash erosion charcoal, activated carbon while moving forward.

On both sides of the respective cages 3 is mounted a pipe, the pipe is connected to have a pump, provided with a plurality of nozzles each trachea, the trachea is inclined toward the conveying direction of the nozzle device 4, the nozzle pipe of about 45 degrees with the direction of the trachea, the trachea nozzles bubble full of activated carbon particles somersault while being spray pipe nozzles clean water erosion, water bubbles and water pipes trachea with activated carbon granules push forward to the next device, namely an intermediate conveyor means 4 the inclined section, and further cleaning.
[0032]

Cages 3 and 4 intermediate inclined section delivery device lap together by silicone rubber sheet, both in the area connected with a correction device 6, said correcting means 6 on both sides of the connection area are each provided with a pipe, with a 3 to 4 spray nozzle on each pipe, the water and bubble water tank cleaning and water flushing apparatus 5 is connected to spray nozzle is tilted forward, toward the running direction of conveyor means 4, with the spray nozzle spray Activated carbon water ran out of the correct side of the net, it does not run material.
[0033]

In the top of the middle section delivery device 4 is provided with the tilt spray rinsing device 7, said spray rinse spray device 7 comprises five pipes, sprinkler pipes are provided on each of the four spray nozzle, spray nozzle is on the activated carbon, reverse osmosis water sprinkler pipes and pumps connected to the conveyor belt, the input water directly to the drinking water standard reverse osmosis water, reverse osmosis water (water to reach drinking water directly request) Conductivity control 12us / cm or less, and spray rinsing device 7 further clean carbon, and add water tank flush device 5 to add water to bubble cleaning, used to make the first step bubble cleaning and flushing of hydraulic scour the washing water recycling.
[0034]

Three 4-level segment at the right side of the delivery device provided with the wind and shot shoot down feeding device 8, the wind and shot shoot down feeding device 8 includes fans are disposed above and below the conveyor means 4 to the right of the horizontal section of the eccentric slap devices, the Slap said eccentric means for rotating eccentric weight shaft installed three groups, each of the two eccentric weight means a symmetrical rotating shaft, the rotating shaft driven by the motor.
[0035]

Rack 8 below in the appropriate location and wind beat downed feeding device is provided on a tank 10 for 4 delivered from the delivery means of activated carbon particles cleaned.
There microseismic draining device 9 on the ground below the corresponding position of the chute 10, with the eccentric means slap slap conveyor belt means 4, so stick to the mesh belt of charcoal separated and transferred to the tank 10, and after the trough 9 10 slid microseismic draining means disposed below the chute 10.

Microseismic draining device 9 comprises turnover baskets, eccentric vibration machine has a turnover in the basket, basket turnover of 200Kg grade 20 mesh mesh plastic box, through shaker Lek to activated carbon adsorption of part of the water in the cleaning process of erosion.

Conveying means 4 includes a carrier belt, Mobility belt, wall panels, silicone rubber sheet, motor carrier belt superimposed Mobility belt, carrying with both sides provided with a wall between the carrier tape and wallboard with a silicone rubber sheet to prevent the activated carbon in the transmission process run feed conveyor means 4 driven by the motor, the carrier band is stainless steel chevron belt, Mobility with 20 mesh stainless steel mesh belt.

Motor driven eccentric shaft means slap rotation, the drive shaft 4 of the delivery device movement.
[0036]

As shown in Figure 3 and 4 of the dryer belt dryer, including Mobility belt 31, the main box 32, the side box 33, fans 34, hopper 35, drying Moisture tube 36.

Dried body chassis features Mobility with 31 Mobility 31 with a working width of 0.6 m, the working length of 8 meters, with 31 Mobility also play a role in carrying it from the drive using double laminated mesh belt, namely bearer network superimposed on the conveyor belt with the bearer network chevron belt made of stainless steel, 20 mesh stainless steel conveyor belt belt use.

In the transmission process, in order to prevent the activated carbon material to run in Mobility provided on both sides with 31 Y-ring, Y-ring to limit the use of activated carbon particles in the transmission process due to the wind and run materials, activated carbon particles to the center gather.

In the case on both sides of the dryer has access doors, easy maintenance, maintenance, dry strength of 5.2Kg water / m2 · h.

Dryer set of equipment into the main tank 32 and the side box 33, by the main side box two drying system for drying the material at the same time, the master, the side box is divided into five units, each unit features a fan 34 fan 34 and electric heating, far-infrared heating system with, for blowing hot air for drying materials.

Main box 32, box 33 side of each cell site partakers wind deflector to the hot air inside the main tank 32 is blown material from the top of the boot, hot side of the box 33 from below blows the material, so that the transfer belt 31 driven by the material in the dryer running when the hot air down through the transmission network with 31 turns, so that the material placed on its top and bottom are fully dry; electric heating, power far-infrared heating is configured to use approximately 36KW, side hot air compartment 33 is recycled, the convective heat transfer to avoid the direct cause of far-infrared light, silver activated carbon oxidation and carbonization.

Supporting the use of frequency control fan blower 34, can be adjusted according to wind speed, size, highly energy savings.

Mesh belt running in drying time 24-60min (adjustable) range with frequency adjustment + cycloid speed of 1 ~ 50m / h match (adjustable).

At one end of the dryer has a hopper 35 for receiving the material delivered to the drying machine, hopper discharge port 35 and 31 are connected with Mobility.

It provided with a hopper and dried in a dryer at the input of humidity and tube 36, since the water in the first three units of humidity, so the humidity and drying tube 36 can be connected in the first three units.
Since the main tank 32 from the wind blowing down, so in the main tank 32, is connected with the lower part of the Mobility 31; wind in the side box 33 is blown from the bottom up, it is connected to the side box 33 Mobility with the upper part 31.

Mobility in the end zone 31 has cleaning means for cleaning adhesions in Mobility 31 without conveyor belt to the next processing device activated carbon particles.
[0037]

Example 2: Take 11 mesh coal activated charcoal in 50kg washing machine cleaning, and then dried in the dryer; 0.8 g Ag4O4 with 1600 grams of sodium hydroxide solution PH value of 7.4 was diluted into a solution by a metering pump and fog of the injection device to have the activated carbon from coal 80 ?; and the above silver activated carbon from coal at 90 ? temperature sealed against light dryer, dried by hot air conduction, which lasted 15 minutes under conditions to prepare 50Kg tetroxide four silver activated carbon from coal, obtained 50Kg tetroxide four silver activated carbon from coal contains 0.7g tetroxide four silver.
[0038]

Example 3: Take 9 mesh coal activated charcoal in 80kg washing machine cleaning, and then dried in the dryer; 1 g Ag4O4 with 1250 grams of calcium hydroxide solution PH value of 7.5, diluted solvent solution, sprayed with a 75 ? 80Kg on clean coal activated carbon; at 85 ? temperature sealed against light dryer, through the fan, far-infrared heating and drying, inverter fan: 11Hz dry, lasted 14 minutes, was prepared 80Kg tetroxide four silver coal activated carbon, prepared 80Kg tetroxide four silver activated carbon from coal contains 0.9g tetroxide four silver.
[0039]

Activated carbon washing machine, dryer 2,3 Example Example 1.
[0040]

Tetroxide four silver activated carbon from coal in the drinking water treatment has broad application prospects, the use of activated carbon from coal tetroxide four silver production of water treatment equipment has the following characteristics:

(1) utilization of raw water is high (99%), no waste water discharge
(2) equipment, small footprint, low power consumption, in line with water, land, energy saving principles.
(3) Water natural, mineral, active, long-lasting antibacterial, in line with healthy drinking water standards.
(4) device will not self-pollution, no water treatment equipment and after disinfection, removing ozone equipment in the bucket of bottled water production process to meet the clean production, environmental protection requirements, so that production workers in a a safe working environment, and the use of the present invention tetroxide four silver activated carbon from coal water treatment systems, low operating costs, rapid return on investment.
[0041]

According to the present invention tetroxide four silver activated carbon from coal in water purifier and drinking water supply project equipment other substances as contrast filter material application with existing water treatment equipment in use as the effect of the filter material:
[0043]

Control "drinking water standards" (GB5749-2006), according to "drinking water standard test method" (GB5750-2006) for said customized raw water, respectively, with wood activated carbon, coal activated carbon, coconut shell activated carbon tetroxide four silver, tetroxide four silver coal activated carbon as a filter material is placed in water purification for active "pillars" experiments, targeted determination of the above items and found tetroxide four silver coal activated carbon adsorption of color, turbidity and so superior processing Several other activated carbon and coal activated drawn wide price much lower than the coconut shell activated carbon, it reduces the cost, easy to promote the use.