CN110817873A - Activated carbon activation and regeneration device and method - Google Patents

Abstract

The invention provides an activated carbon activation and regeneration device and an activation and regeneration method, including a granular activated carbon activation and regeneration system, a powdery activated carbon activation and regeneration system and a waste gas treatment system. The granular activated carbon activation and regeneration system and the powdery activated carbon activation and regeneration system They are all connected with the waste gas treatment system. After the granular waste activated carbon is desorbed and activated and regenerated at a high temperature by the granular activated carbon activation and regeneration system, the organic waste gas is treated by the waste gas treatment system, and the powdery waste activated carbon is desorbed at a high temperature by the powder activated carbon activation and regeneration system. , After activation and regeneration, the exhaust gas is treated by the exhaust gas treatment system. By setting the granular activated carbon activation and regeneration system and the powdery activated carbon activation and regeneration system, the present invention can not only activate and regenerate the granular waste activated carbon, but also activate and regenerate the powdery waste activated carbon. The method is simple, easy to operate, and suitable for good sex.

Description

A kind of activated carbon activation regeneration device and activation regeneration method

technical field

The invention relates to the technical field of activated carbon treatment, in particular to an activated carbon activation and regeneration device and an activation and regeneration method.

Background technique

At present, activated carbon is more and more widely used in daily life. Many people use activated carbon to purify water and air. However, activated carbon is often unable to continue to be used due to adsorption saturation, micropore blockage, damage and other reasons, and direct disposal will not only cause environmental damage Pollution, and economic benefits are poor, so people invest a lot of energy in the direction of activated carbon activation and regeneration.

For example, Chinese patent "CN108940242A" discloses an activated carbon regeneration and activation device, including a feeding device, an activated rotary furnace body, a driving mechanism, a heat preservation mechanism, a discharging device, an air intake mechanism, a rotary air intake joint and a washing mechanism. One end of the activation rotary furnace body is provided with a feeding port, and the feeding port is connected to the feeding device, the other end of the activation rotary furnace body is provided with a feeding port, and the discharging port is connected with a feeding device, and the activation return The outer sides of the two ends of the converter body are provided with driving mechanisms, the middle outer side of the activated rotary furnace body is covered with a heat preservation mechanism, the inside of the discharging device is installed with an air intake mechanism, and the air intake mechanism and the activated rotary furnace body pass through. The rotary air inlet joint is connected, and the washing mechanism is connected with the feeding device. Although this technical solution can activate and regenerate activated carbon, it lacks exhaust gas treatment, which easily affects the environment.

SUMMARY OF THE INVENTION

In order to overcome the problem in the prior art that although activated carbon can be activated and regenerated, it lacks exhaust gas treatment and easily affects the environment. The present invention provides an activated carbon activation and regeneration device and an activation and regeneration method.

The present invention achieves the above objects through the following technical solutions: a fault location device for power transmission line inspection, comprising a granular activated carbon activation and regeneration system, a powdered activated carbon activation and regeneration system and a waste gas treatment system, the granular activated carbon activation and regeneration Both the system and the powder activated carbon activation and regeneration system are connected with the waste gas treatment system. After the granular waste activated carbon is activated and regenerated by the granular activated carbon activation and regeneration system, the waste gas is treated by the waste gas treatment system, and the powder waste activated carbon is passed through the powder activated carbon activation and regeneration system. After activation and regeneration, the exhaust gas is treated by the exhaust gas treatment system.

On this basis, the granular activated carbon activation and regeneration system includes a two-stage screw conveyor, a rotary kiln regeneration furnace, a cooling conveying trough, and a blower. The two-stage screw conveyor one and the material inlet of the rotary kiln regeneration furnace The first cooling conveying trough is communicated with the material outlet of the rotary kiln regeneration furnace, and the air outlet of the first air blower is communicated with the rotary kiln regeneration furnace.

On this basis, the powder activated carbon activation and regeneration system includes a second two-stage screw conveyor, a fluidized regeneration furnace, a second cooling and conveying tank, a 1100°C high-temperature dust collector and a second blower. The two-stage screw conveyor II and The material inlet of the fluidized regeneration furnace is communicated with the material outlet of the fluidized regeneration furnace, and the material outlet of the fluidized regeneration furnace is communicated with the 1100°C high-temperature dust collector. The air outlet is communicated with the fluidized regeneration furnace.

On this basis, the waste gas treatment system includes a combustion chamber, a waste heat boiler, a quench tower, a dry reaction device, a bag filter, a spray scrubber, an induced draft fan, a flue gas heater and a chimney, and the rotary kiln regeneration furnace Connected to the inlet of the combustion chamber, the 1100°C high temperature dust collector is connected to the inlet of the combustion chamber, the outlet of the combustion chamber is connected to the waste heat boiler, the waste heat boiler is connected to the quenching tower, the quenching tower is connected to the dry reaction device, and the dry reaction device The bag filter is connected to the bag filter, and the bag filter is connected to the spray washing tower, and the outlet of the spray washing tower is connected to the chimney after passing through the induced draft fan and the flue gas heater.

On this basis, an air storage tank is also included, wherein compressed air is stored in the air storage tank, and the air storage tank is connected to the combustion chamber, the waste heat boiler, the quenching tower and the dry reaction device.

On this basis, a steam storage tank is also included, in which saturated steam is stored, one end of the steam storage tank is connected to the flue gas heater, the rotary kiln regeneration furnace and the fluidized regeneration furnace, and the other end is connected to the waste heat boiler.

On this basis, the waste gas treatment system further includes an SNCR system, a quenching system, a semi-dry absorption system, a spray system and a water supply system, the SNCR system is connected with the waste heat boiler, and the quenching system is connected with the quenching tower. , the semi-dry absorption system is connected with the dry reaction device, the spray system is connected with the spray washing tower, one end of the water supply system is connected with the waste heat boiler, and the other end is connected with the flue gas heater.

On this basis, the number of the spray washing towers is 2.

On this basis, a method for activation and regeneration of activated carbon includes the following steps: step 1: the granular activated carbon activation and regeneration system performs activation and regeneration treatment on the granular waste activated carbon; Carry out activation and regeneration treatment; Step 3: The waste gas treatment system will perform waste gas treatment on the waste gas discharged from the granular activated carbon activation and regeneration system and the powder activated carbon activation and regeneration system, so that the waste gas can be discharged up to the standard.

On this basis, the specific steps are as follows: Step 1: The granular waste activated carbon is transported to the rotary kiln regeneration furnace through the two-stage screw conveyor; Saturated steam is fed into the rotary kiln regeneration furnace for activation and regeneration treatment. The finished granular activated carbon is subjected to vacuum packaging after cooling and conveying through the cooling conveying tank. The waste gas generated during the activation and regeneration process is sent to the waste gas treatment system; The second two-stage screw conveyor is transported to the fluidized regeneration furnace, the second blower is the fluidized regeneration furnace to send air, the steam storage tank is to the fluidized regeneration furnace to send saturated steam, and the fluidized regeneration furnace is activated and regenerated. The treated mixed gas enters the 1100°C high-temperature dust collector to strip the powdered activated carbon product from the waste gas, and then the powdered activated carbon product is sent to the cooling conveying tank 2 for cooling and conveying for vacuum packaging, and the stripped waste gas is sent to the waste gas treatment system. ; Step 3: The waste gas in the first and second steps is concentrated into the combustion chamber for full combustion and oxidation, the combustion temperature is 1100 ° C, and the combustion time of the waste gas is greater than 2 seconds; then the waste gas enters the waste heat boiler for denitration treatment, and the temperature of the waste gas decreases to 550℃; then the exhaust gas at 550℃ enters the quenching tower and cools down to 200℃ within 1 second; then the exhaust gas at 200℃ enters the dry reaction device for purification treatment; then enters the bag filter for dust removal treatment, and then enters the spray The washing tower is sprayed and washed, and finally discharged through the chimney after being heated by the induced draft fan and the flue gas heater.

Compared with the prior art, the beneficial effects of the present invention are:

By setting the granular activated carbon activation and regeneration system and the powdery activated carbon activation and regeneration system, the present invention can not only activate and regenerate the granular waste activated carbon, but also activate and regenerate the powdery waste activated carbon. The method is simple, easy to operate, and suitable for good sex;

By setting the waste gas treatment system, the present invention can purify the waste gas generated by the activated carbon activation and regeneration treatment to make it discharge up to the standard, thereby improving the environmental protection effect;

The invention stores the saturated steam generated by the waste heat boiler by setting the steam storage tank and sends it to the flue gas heater, the rotary kiln regeneration furnace and the fluidized regeneration furnace, so that the energy can be recycled and utilized, and the effect of energy saving and emission reduction is improved. The boiler recovers the temperature of the exhaust gas, which is convenient for providing energy to the flue gas heater.

Description of drawings

Fig. 1 is the brief structural representation of the present invention;

Fig. 2 is the structural representation of granular activated carbon activation regeneration system in the present invention;

Fig. 3 is the structural representation of powder activated carbon activation regeneration system in the present invention;

Fig. 4 is the structural representation of the exhaust gas treatment system in the present invention;

Fig. 5 is the working flow chart of the present invention;

In the picture: 1. Granular activated carbon activation and regeneration system, 2. Powder activated carbon activation and regeneration system, 3. Waste gas treatment system, 11. Two-stage screw conveyor 1, 12. Rotary kiln regeneration furnace, 13. Cooling conveying tank 1, 21. Two-stage screw conveyor 2, 22. Fluidized regeneration furnace, 23. Cooling conveying trough 2, 24, 1100 ℃ high temperature dust collector, 31, combustion chamber, 32, waste heat boiler, 33, quench tower, 34, dry Type reaction device, 35, bag filter, 36, spray scrubber, 37, induced draft fan, 38, flue gas heater, 39, chimney, 311, SNCR system, 312, quenching system, 313, semi-dry absorption system , 314, sprinkler system, 315, water supply system.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

As shown in FIGS. 1-5 , the present invention schematically shows an activation and regeneration device and an activation and regeneration method for activated carbon.

The present invention discloses a fault location device for power transmission line inspection. As shown in Figures 1-4, an activated carbon activation and regeneration device includes a granular activated carbon activation and regeneration system 1 and a powdered activated carbon activation and regeneration system 2 And the waste gas treatment system 3, the granular activated carbon activation and regeneration system 1 and the powder activated carbon activation and regeneration system 2 are both connected with the waste gas treatment system 3, after the granular activated carbon is activated and regenerated by the granular activated carbon activation and regeneration system 1, the waste gas is The waste gas treatment system 3 is used for treatment. After the powdery waste activated carbon is activated and regenerated by the powder activated carbon activation and regeneration system 2, the waste gas is treated by the waste gas treatment system 3. It also includes drying equipment. The drying equipment is connected to the granular activated carbon activation and regeneration system 1 and the powdered activated carbon activation and regeneration system 2. Since the waste activated carbon generally has a water content of 65% or even higher, in order to keep the fluidity of the waste carbon in the activation furnace. In a good state, the moisture content of the waste activated carbon must be reduced to about 15%, and then enter the regeneration furnace for desorption and reaction. Therefore, the waste activated carbon needs to be dried first. Preferably, the drying equipment is a paddle drying unit, and the paddle is dried. The shell of the machine is W-shaped, the shell is provided with a jacket, and two to four hollow stirring shafts are arranged in the shell. The jacket and the hollow stirring shaft are filled with flowing heat transfer medium (steam or hot water or heat conduction Wedge-shaped hollow paddles are densely arranged on the hollow stirring shaft. The shell has a sealed end cover and an upper cover to prevent material dust from leaking out and collect material solvent vapor. A stopper is set at the discharge port to ensure the height of the material level. , so that the heat transfer surface is covered by the material to fully play its role.

The granular activated carbon activation regeneration system 1 includes a two-stage screw conveyor 1 11, a rotary kiln regeneration furnace 12, a cooling conveying trough 1 13 and a blower 1. The two-stage screw conveyor 1 11 and the rotary kiln regeneration furnace 12 materials The inlets are connected, the cooling conveying groove 1 13 is connected with the material outlet of the rotary kiln regeneration furnace 12 , and the air outlet of the blower 1 is connected with the rotary kiln regeneration furnace 12 .

The powder activated carbon activation and regeneration system 2 includes a two-stage screw conveyor 21, a fluidized regeneration furnace 22, a cooling conveying tank 23, a 1100°C high temperature dust collector 24 and a blower 2. The two-stage screw conveyor 21 It is communicated with the material inlet of the fluidized regeneration furnace 22, the material outlet of the fluidized regeneration furnace 22 is communicated with the 1100°C high temperature dust collector 24, and the 1100°C high temperature dust collector 24 is communicated with the cooling conveying tank II 23 , the air outlet of the second blower is connected to the fluidized regeneration furnace 22 .

The waste gas treatment system 3 includes a combustion chamber 31, a waste heat boiler 32, a quenching tower 33, a dry reaction device 34, a bag filter 35, a spray washing tower 36, an induced draft fan 37, a flue gas heater 38 and a chimney 39. The rotary kiln regeneration furnace 12 is connected to the inlet of the combustion chamber 31, the 1100°C high temperature dust collector 24 is connected to the inlet of the combustion chamber 31, the outlet of the combustion chamber 31 is connected to the waste heat boiler 32, and the waste heat boiler 32 is connected to the quenching tower 33, the quenching The tower 33 is connected to the dry reaction device 34, the dry reaction device 34 is connected to the bag filter 35, and the bag filter 35 is connected to the spray washing tower 36, and the outlet of the spray washing tower 36 passes through the induced draft fan 37 and the smoke. The gas heater 38 communicates with the chimney 39 behind.

The combustion chamber 31 is formed by integral casting of vertical cylindrical refractory materials. The inner wall of the combustion chamber 31 is built with high-alumina refractory materials, which have the functions of fire resistance, anti-corrosion and thermal load impact resistance. The refractory material and the outer shell of the combustion chamber 31 are lined with heat insulation , to ensure that the temperature of the outer wall of the combustion chamber 31 is less than the ambient temperature of 50 °C, the temperature of the refractory material is above 1300 °C, and the combustion-supporting fuel, air, and exhaust gas enter the combustion chamber, effectively ensuring the residence time of the exhaust gas and the sedimentation of large particles of dust in the combustion chamber, and the combustion efficiency ≥ 99.9%, the incineration removal rate is ≥99.99%, so that the toxic components (toxic gas and dioxin, etc.) can be fully decomposed and eliminated in the combustion chamber 31. A secondary air and a burner are arranged at the lower part of the combustion chamber 31 to ensure that the exhaust gas temperature of the combustion chamber 31 reaches the standard and that the exhaust gas has sufficient disturbance. The upper part of the combustion chamber 31 has an exhaust gas outlet, and the exhaust gas in the combustion chamber 31 is discharged through the exhaust gas outlet. An emergency exhaust gas discharge chimney is arranged on the top of the combustion chamber 31. When the facility fails, the exhaust gas is discharged therefrom. An automatic cover plate is set on the top of the emergency exhaust gas discharge chimney, which is forced to open when the power is cut off.

The waste heat boiler 32 includes a steam drum and a large membrane wall cavity. The membrane wall large cavity is a vertical membrane wall large cavity, which reduces the flow rate of the high-temperature exhaust gas and allows more dust to settle at the bottom of the vertical membrane wall cavity, thereby It is beneficial to the natural settlement of mineral dust and to prevent the wear of the furnace tube. The drum body is made of steel plate coil welding. The head is stamped from steel plate, and there are manhole devices on both ends of the head. The steam drum is equipped with a demister as a steam-water separation device, and the demister is made of a steam-liquid filter. The steam drum is provided with a riser pipe in the evaporation area, and a baffle plate is installed at the mouth of the riser pipe; the steam drum is provided with a drop pipe mouth in the evaporation area. The tube is inserted obliquely into the descending nozzle, so that the boiler feed water is directly sent to the descending nozzle after being preheated by the boiler water. There are two safety valve ports on the steam drum to ensure that the pressure of the steam drum will not be overpressured. The normal water level of the steam drum is 50mm above the center line of the steam drum, and the highest and lowest water levels are ±50mm. The interface of the water level transmitter is used to adjust the water level of the boiler feed water to control the steam drum. In order to prevent the water level of the steam drum from being too high and affecting the quality of the steam, there is an emergency water discharge nozzle on the steam drum. In order to improve the quality of steam and reduce the salt concentration of boiler water, the steam drum is equipped with surface continuous sewage discharge, regular sewage discharge pipe at the bottom and trisodium phosphate dosing nozzle for water treatment in the furnace, and the continuous sewage discharge rate is 2%. The steam drum is supported on the steel frame platform through two supports, one end of the supports is fixed, the other end is movable, and can be freely expanded along the axial direction. The outer wall of the waste heat boiler 32 is made of refractory castable material plus composite silicon silicate.

The dry reaction device 34 is provided with a venturi tube, and the lime powder and activated carbon powder are transported to the throat of the vertical venturi tube of the dry reaction device 34 through the feeding device and the high-pressure air, and meet the exhaust gas gas and solid in pairs. , due to the reduction of the throat cross-sectional area, the exhaust gas velocity increases, resulting in high turbulence and gas-solid mixing. The exhaust gas carries lime powder and activated carbon dust upwards in the inner tube of the dry reaction device 34, and then falls through the outer tube, fully extending The gas-solid contact time is shortened, so that the dioxins and other hydrocarbons in the exhaust gas can be fully contacted with the activated carbon, so as to achieve the purpose of removing dioxins and other hydrocarbons. acid gases in.

The bag filter 35 adopts pulse resonance dust removal, and the inner wall of the shell of the bag filter 35 is subjected to anti-corrosion treatment to ensure that the bag filter 35 has corrosion resistance. The shell of the bag filter 35 is provided with a filter room and an inspection door. Filter bag and pulse cleaning device, the bag filter 35 uses a star discharger to discharge dust, the lower part of the discharger is provided with a sealed ash bucket, and the lower part of the ash bucket is provided with an ash discharge valve to ensure that there is no dust on the site, the bag filter 35 The cleaning effect is controlled by a differential pressure sensor, and the pulse cleaning method is adopted. The cleaning system adopts DCS automatic control. The bag filter 35 is also provided with a bypass. When the inlet temperature of the bag filter 35 is not within the limit range, the bypass Open, the exhaust gas passes through the bypass to ensure that the bag will not be fatally damaged when the temperature is abnormal.

The spray washing tower 36 adopts a packed tower structure, and the deacidified liquid is sent to the spray system in the tower through a circulating pump, and is atomized into 1-3mm droplets through the nozzle, which fully covers the entire tower body and forms a good atomization area. And fully contact with the bottom-up exhaust gas reverse convection to complete the mass transfer process and achieve the purpose of purifying the flue gas. The spray washing tower 36 is designed in the form of countercurrent, which can support the droplets falling by spraying to a certain extent through the rising waste gas, thereby prolonging the residence time of the droplets in the absorption area, strengthening the full contact between the waste gas and the absorbent, and improving the efficiency of the flow. Deacidification efficiency. A mist eliminator is also installed at the outlet of the spray washing tower 36 to separate the mist droplets entrained in the clean flue gas.

It also includes an air storage tank, wherein compressed air is stored in the air storage tank, and the air storage tank is connected to the combustion chamber 31 , the waste heat boiler 32 , the quenching tower 33 and the dry reaction device 34 . It is convenient to centrally supply gas to the combustion chamber 31 , the waste heat boiler 32 , the quenching tower 33 and the dry reaction device 34 .

It also includes a steam storage tank, which stores saturated steam. One end of the steam storage tank is connected to the flue gas heater 38 , the rotary kiln regeneration furnace 12 and the fluidized regeneration furnace 22 , and the other end is connected to the waste heat boiler 32 . The saturated steam generated by the waste heat boiler 32 is stored and sent to the flue gas heater 38, the rotary kiln regeneration furnace 12 and the fluidized regeneration furnace 22, so that the energy can be recycled and the effect of energy saving and emission reduction is improved.

The exhaust gas treatment system 3 further includes an SNCR system 311, a quenching system 312, a semi-dry absorption system 313, a spraying system 314 and a water supply system 315. The SNCR system 311 is connected to the waste heat boiler 32, and the quenching system 312 is connected to the waste heat boiler 32. The quenching tower 33 is connected, the semi-dry absorption system 313 is connected with the dry reaction device 34, the spray system 314 is connected with the spray washing tower 36, and one end of the water supply system 315 is connected with the waste heat boiler 32, The other end is connected to the flue gas heater 38 . The SNCR system 311 includes a urea pump, a urea solution tank, and a urea configuration tank. The urea pump, the urea solution tank, and the urea configuration tank are connected in series, and the urea pump is connected to the waste heat boiler 32; the quench system 312 includes a quench water tank and a quench pump, and one end of the quench pump is connected to the quench The tower 33 is connected to the quench water tank at the other end; the semi-dry absorption system 313 includes an activated carbon silo, a lime powder silo and an air blower, and the air blower communicates with the activated carbon silo and the lime powder silo and then leads to the dry reaction device 34; the spray system 314 includes alkali Liquid pool and spray pump. One end of the spray pump is connected to the lye pool and the other end is connected to the spray washing tower 36; , the feed water pump is also connected to the waste heat boiler 32, and the temperature of the exhaust gas is recovered through the waste heat boiler 32, so as to provide energy to the flue gas heater 38.

The number of the spray washing towers 36 is two. Two spray washes on the exhaust gas can better purify the exhaust gas.

As shown in Figure 1-5, a method for activation and regeneration of activated carbon includes the following steps:

Step 1: The granular waste activated carbon is transported to the rotary kiln regeneration furnace 12 through the two-stage screw conveyor 11, the blower 1 sends air into the rotary kiln regeneration furnace 12, the steam storage tank sends saturated steam into the rotary kiln regeneration furnace 12, and the rotary kiln regeneration furnace 12 is rotated. The kiln regeneration furnace 12 is activated and regenerated. The temperature of the activated carbon product after activation and regeneration treatment is 900°C. The granular activated carbon product is cooled and transported through the cooling conveying tank 13 and then vacuum-packed. The waste gas generated during the activation and regeneration process is sent to the waste gas treatment system 3 Step 2: The powdery waste activated carbon is transported to the fluidized regeneration furnace 22 through the second two-stage screw conveyor 21, the second air blower is the fluidized regeneration furnace 22 to send air, and the steam storage tank is sent to the fluidized regeneration furnace 22. Saturated steam is fed into the fluidized regeneration furnace 22 for activation and regeneration. The temperature of the activated carbon product after activation and regeneration treatment is 900°C, and the treated mixed gas enters the 1100°C high-temperature dust collector 24 to strip the powdered activated carbon product from the exhaust gas. Subsequently, the powdered activated carbon product is sent to the cooling and conveying tank 23 for cooling and conveying, and then vacuum packaging is performed, and the stripped waste gas is sent to the waste gas treatment system 3; Full combustion and oxidation are carried out, the combustion temperature is 1100 °C, and the combustion time of exhaust gas is more than 2 seconds; then the exhaust gas enters the waste heat boiler 32, and SNCR denitration treatment is carried out by injecting urea into the furnace, and the temperature of the exhaust gas is reduced to 550 °C; The exhaust gas enters the quenching tower and cools down to 200°C within 1 second, which effectively inhibits the regeneration of dioxins. In addition, some sparks in the exhaust gas are extinguished by the injected water mist to protect the subsequent cloth bags from being burned; then 200°C The waste gas enters the dry reaction device 34 for purification treatment; then enters the bag filter 35 for dedusting treatment, specifically, the lime powder, activated carbon powder and flue gas from the dry reaction device 34 enter the bag filter 35 together, and the lime powder and activated carbon powder are intercepted by the filter bag, stay on the surface of the filter bag, continue to react with the acid gas, and absorb heavy metals and dioxins in the exhaust gas at the same time. The spray washing tower 36 is sprayed and washed, and finally is heated to 130° C. by the induced draft fan 37 and the flue gas heater 38 and then discharged through the chimney 39 . Preferably, step 1 and step 2 are performed simultaneously. Preferably, before step 1, a drying treatment step is also included: the paddle drying unit performs drying treatment on the waste activated carbon (granular and powdery), which must go through two main processes: 1) Evaporation process: water vaporization on the surface of the material, Since the water vapor pressure on the surface of the material is lower than the partial pressure of water vapor in the medium (gas), the water moves into the medium from the material surface; 2) Extrusion diffusion process: it is a mass transfer process closely related to vaporization. When the water on the surface of the material is evaporated away , the humidity on the surface of the material is lower than the humidity inside the material. At this time, the driving force of heat is needed to transfer the water from the inside to the surface, and the water content of the waste activated carbon after drying treatment is reduced to 15%. Air residual heat to 130 ℃. Preferably, the waste heat boiler 32 recycles the temperature of the exhaust gas to provide energy for the flue gas heater 38 to heat the exhaust gas before it is discharged. Preferably, the saturated steam generated by the waste heat boiler 32 is stored and sent to the flue gas heater 38 , the rotary kiln regeneration furnace 12 and the fluidized regeneration furnace 22 for recycling.

The foregoing specification illustrates and describes preferred embodiments of the present invention, and as previously stated, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as an exclusion of other embodiments, but may be used in a variety of other Combinations, modifications and environments are possible within the scope of the inventive concepts described herein, from the above teachings or from skill or knowledge in the relevant fields. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present invention, and should all fall within the protection scope of the appended claims of the present invention.

Claims (10)

1. An activated carbon's activation regenerating unit which characterized in that: including granular active carbon activation regeneration system (1), powdered active carbon activation regeneration system (2) and exhaust-gas treatment system (3), granular active carbon activation regeneration system (1) and powdered active carbon activation regeneration system (2) all are linked together with exhaust-gas treatment system (3), and granular useless active carbon is through granular active carbon activation regeneration system (1) activation regeneration back, and waste gas is handled by exhaust-gas treatment system (3), and likepowder useless active carbon is through powdered active carbon activation regeneration system (2) activation regeneration back, and waste gas is handled by exhaust-gas treatment system (3).

2. The activated carbon activating and regenerating device according to claim 1, characterized in that: granular activated carbon activation regeneration system (1) includes two-stage screw conveyer (11), rotary kiln regenerator (12), cooling conveyer trough (13) and forced draught blower (1), two-stage screw conveyer (11) are linked together with the material entry of rotary kiln regenerator (12), cooling conveyer trough (13) are linked together with the material export of rotary kiln regenerator (12), the air outlet intercommunication rotary kiln regenerator (12) of forced draught blower (one).

3. The activated carbon activating and regenerating device according to claim 2, characterized in that: the powdered activated carbon activation regeneration system (2) comprises a two-stage screw conveyor II (21), a fluidized regeneration furnace (22), a cooling conveying groove II (23), a 1100 ℃ high-temperature dust remover (24) and a blower II, wherein the two-stage screw conveyor II (21) is communicated with a material inlet of the fluidized regeneration furnace (22), a material outlet of the fluidized regeneration furnace (22) is communicated with the 1100 ℃ high-temperature dust remover (24), the 1100 ℃ high-temperature dust remover (24) is communicated with the cooling conveying groove II (23), and an air outlet of the blower II is communicated with the fluidized regeneration furnace (22).

4. The activated carbon activating and regenerating device according to claim 3, characterized in that: the waste gas treatment system (3) comprises a combustion chamber (31), a waste heat boiler (32), a quench tower (33), a dry reaction device (34), a bag-type dust remover (35), a spray washing tower (36), an induced draft fan (37), a flue gas heater (38) and a chimney (39), the rotary kiln regenerative furnace (12) is communicated with the inlet of the combustion chamber (31), the 1100 ℃ high-temperature dust remover (24) is communicated with the inlet of the combustion chamber (31), the outlet of the combustion chamber (31) is communicated with a waste heat boiler (32), the waste heat boiler (32) is communicated with a quenching tower (33), the quenching tower (33) is communicated with a dry reaction device (34), the dry reaction device (34) is communicated with a bag-type dust remover (35), the bag-type dust remover (35) is communicated with a spray washing tower (36), and the outlet of the spray washing tower (36) is communicated with a chimney (39) through an induced draft fan (37) and a flue gas heater (38).

5. The activated carbon activating and regenerating device according to claim 4, characterized in that: the device is characterized by further comprising a gas storage tank, wherein compressed air is stored in the gas storage tank, and the gas storage tank is communicated with the combustion chamber (31), the waste heat boiler (32), the quenching tower (33) and the dry type reaction device (34).

6. The activated carbon activating and regenerating device according to claim 5, characterized in that: the device is characterized by further comprising a steam storage tank, saturated steam is stored in the steam storage tank, one end of the steam storage tank is communicated with the flue gas heater (38), the rotary kiln regenerator (12) and the fluidized regenerator (22), and the other end of the steam storage tank is communicated with the waste heat boiler (32).

7. The activated carbon activating and regenerating device according to claim 6, characterized in that: the waste gas treatment system (3) further comprises an SNCR system (311), a quenching system (312), a semi-dry absorption system (313), a spraying system (314) and a water supply system (315), wherein the SNCR system (311) is connected with the waste heat boiler (32), the quenching system (312) is connected with the quenching tower (33), the semi-dry absorption system (313) is connected with the dry reaction device (34), the spraying system (314) is connected with the spraying washing tower (36), one end of the water supply system (315) is connected with the waste heat boiler (32), and the other end of the water supply system (315) is connected with the flue gas heater (38).

8. The activated carbon activating and regenerating device according to claim 4, characterized in that: the number of the spray washing towers (36) is 2.

9. An activation regeneration method using the activated carbon activation regeneration apparatus according to claim 7, comprising the steps of:

the method comprises the following steps: the granular active carbon activation regeneration system (1) carries out activation regeneration treatment on granular waste active carbon;

step two: the powdered activated carbon activation regeneration system (2) carries out activation regeneration treatment on the powdered waste activated carbon;

step three: the waste gas treatment system (3) carries out waste gas treatment on the waste gas discharged from the granular activated carbon activation regeneration system (1) and the powdered activated carbon activation regeneration system (2), so that the waste gas reaches the standard and is discharged.

10. The activated carbon activation and regeneration method according to claim 9, comprising the following steps:

the method comprises the following steps: granular waste activated carbon is conveyed into a rotary kiln regeneration furnace (12) through a two-stage screw conveyor I (11), a blower I sends air into the rotary kiln regeneration furnace (12), a steam storage tank sends saturated steam into the rotary kiln regeneration furnace (12), the rotary kiln regeneration furnace (12) carries out activation regeneration treatment, a granular activated carbon finished product is cooled and conveyed through a cooling conveying tank I (13) and then is subjected to vacuum packaging, and waste gas generated in the activation regeneration process is sent into a waste gas treatment system (3);

step two: conveying powdery waste activated carbon into a fluidized regeneration furnace (22) through a second two-stage screw conveyor (21), feeding air into the fluidized regeneration furnace (22) by using a second air feeder, feeding saturated steam into the fluidized regeneration furnace (22) by using a steam storage tank, carrying out activation regeneration treatment on the fluidized regeneration furnace (22), feeding treated mixed gas into a 1100 ℃ high-temperature dust remover (24) to strip a powdery activated carbon finished product from waste gas, then feeding the powdery activated carbon finished product into a second cooling conveying tank (23), cooling and conveying the powdery activated carbon finished product, carrying out vacuum packaging, and feeding the stripped waste gas into a waste gas treatment system (3);

step three: the waste gas in the first step and the waste gas in the second step are intensively introduced into a combustion chamber (31) for full combustion and oxidation, the combustion temperature is 1100 ℃, and the combustion time of the waste gas is more than 2 seconds; then, the waste gas enters a waste heat boiler (32) for denitration treatment, and the temperature of the waste gas is reduced to 550 ℃; then, the waste gas with the temperature of 550 ℃ enters a quenching tower and is cooled to 200 ℃ within 1 second; then the waste gas with the temperature of 200 ℃ enters a dry type reaction device (34) for purification treatment; then enters a bag-type dust remover (35) for dust removal treatment, then enters a spray washing tower (36) for spray washing, and finally is exhausted through a chimney (39) after being heated by induced draft fan (37) and flue gas heater (38).

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