CN113713562A - Integrated box-type malodorous gas advanced treatment device and method - Google Patents
Integrated box-type malodorous gas advanced treatment device and method Download PDFInfo
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- CN113713562A CN113713562A CN202111086448.6A CN202111086448A CN113713562A CN 113713562 A CN113713562 A CN 113713562A CN 202111086448 A CN202111086448 A CN 202111086448A CN 113713562 A CN113713562 A CN 113713562A
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- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
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Abstract
The invention relates to the technical field of malodorous gas treatment, in particular to an integrated box-type malodorous gas advanced treatment device and a method. The odor gas advanced treatment system is arranged in the box body through the arrangement of the box body, so that the transportation and the installation are convenient, the occupied area required by the installation is obviously reduced, in addition, the adsorption and regeneration treatment system is also arranged in the invention, the adsorption and regeneration treatment system carries out regeneration treatment on the adsorbent in the adsorbent purification device, the reuse of the adsorbent is realized, meanwhile, the adsorption and regeneration treatment system is also arranged in the box body, and the odor gas advanced treatment system and the adsorption and regeneration treatment system are connected together in an integrated box type structure, so that the transportation and the installation are also convenient.
Description
Technical Field
The invention relates to the technical field of malodorous gas treatment, in particular to an integrated box-type malodorous gas advanced treatment device and method.
Background
The malodorous gas is any odorous gas which stimulates olfactory organs to cause unpleasant feelings and damages the living environment, and is typical pollution disturbing people. A large amount of malodorous gases are generated in the industries of garbage treatment, sewage treatment, livestock and poultry breeding, petrochemical industry and the like, and common malodorous substances comprise hydrogen sulfide, ammonia, aldehydes, ketones, alcohols, esters, organic sulfur, organic amine, organic acids, aromatics and the like.
The malodorous gas can be discharged after being treated to reach the standard. At present, the foul gas processing mode commonly used is biological method + adsorption method, main deodorizing device is preprocessing device, biofilter, adsorbent purifier, foul gas passes through preprocessing device in proper order, biofilter, the adsorbent purifier is handled and is discharged after reaching standard again, however, current deodorizing device is split type, set up alone, the installation of being not convenient for very much, area is great, moreover, adsorbent among the adsorbent purifier is just directly changed after the saturation, and reuse is not carried out, the waste of resource has been caused, be unfavorable for extensive popularization.
Disclosure of Invention
The invention aims to solve the technical problem of providing an integrated box-type malodorous gas advanced treatment device which is convenient to install, small in occupied area and high in resource utilization rate.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device of box foul gas advanced treatment of integration, including the box, be provided with foul gas advanced treatment system, absorption regeneration processing system in the box, foul gas advanced treatment system includes adsorbent purifier, and the adsorbent in the adsorbent purifier carries out regeneration treatment through absorption regeneration processing system.
Further, be provided with air inlet, blast pipe on the box, foul gas advanced treatment system still includes preprocessing subassembly, biofilter, and preprocessing subassembly, biofilter, adsorbent purifier set gradually in the box from a left side to the right side, and the air inlet is linked together with the preprocessing subassembly, and adsorbent purifier is linked together with the blast pipe through first gas transmission pipeline, along gas transmission direction, is provided with first fan, first detector on the first gas transmission pipeline.
Further, the air inlet is arranged at the left lower part of the box body, and the exhaust pipe is arranged at the right upper part of the box body;
the pretreatment component comprises a first gas distributor, a first packing layer and a first spraying pipe network from bottom to top in sequence;
the biological filter is sequentially provided with a second gas distributor, a second packing layer and a second spraying pipe network from bottom to top;
a gas transition conveying channel is arranged between the pretreatment assembly and the biological filter, an inlet of the gas transition conveying channel is positioned above the first spraying pipe network, and an outlet of the gas transition conveying channel is positioned below the second gas distributor;
the adsorbent purification device is sequentially provided with a third gas distributor and an adsorbent layer from top to bottom;
the biological filter is communicated with the adsorbent purifying device through a second gas conveying pipeline, an inlet of the second gas conveying pipeline is positioned above the second spraying pipe network, and an outlet of the second gas conveying pipeline is positioned above the third gas distributor.
Furthermore, the gas distribution device also comprises a micro-cyclone assembly, wherein the micro-cyclone assembly is arranged above the second gas distributor and comprises a plurality of single-stage micro-cyclones which are connected in parallel, and the inlet of the second gas conveying pipeline is communicated with the outlet of the micro-cyclone assembly.
Furthermore, a first water collecting tank is arranged below the first gas distributor, and a second water collecting tank is arranged below the second gas distributor.
Furthermore, a first water inlet assembly and a second water inlet assembly are also arranged, the first water inlet assembly comprises a first water tank, a first water conveying pipeline, a first spray water pump and a second water conveying pipeline, and the first water tank is provided with a first water inlet and a first water outlet;
one end of the first water pipeline is communicated with the first water tank, the other end of the first water pipeline is communicated with the first spraying pipe network, and the first spraying water pump is arranged on the first water pipeline;
one end of the second water pipeline is communicated with the first water collecting tank, and the other end of the second water pipeline is communicated with the first water tank;
the second water inlet assembly comprises a second water tank, a third water pipeline, second spray water and a fourth water pipeline, and the second water tank is provided with a second water inlet and a second water outlet;
one end of the third water pipeline is communicated with the second water tank, the other end of the third water pipeline is communicated with the second spraying pipe network, and the second spraying water pump is arranged on the third water pipeline;
one end of the fourth water pipeline is communicated with the second water collecting tank, and the other end of the fourth water pipeline is communicated with the second water tank.
Furthermore, the adsorption regeneration treatment system comprises a first gas inlet pipeline, a second fan, a third gas conveying pipeline, a heater and a first valve, wherein one end of the first gas inlet pipeline is communicated with one end of the third gas conveying pipeline, the other end of the third gas conveying pipeline is communicated with the adsorbent purification device, and the other end of the third gas conveying pipeline is positioned above the third gas distributor;
and along the gas conveying direction, the second fan, the heater and the first valve are sequentially arranged on the third gas conveying pipeline.
Further, the gas pipeline system also comprises a fourth gas conveying pipeline, a fifth gas conveying pipeline, a sixth gas conveying pipeline, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve and a seventh valve;
the second valve is arranged on the first air inlet pipeline;
the seventh valve is arranged on the first gas conveying pipeline and is positioned between the adsorbent purifying device and the first fan;
the fifth gas conveying pipeline is communicated with the gas inlet, and the fourth valve is arranged on the fifth gas conveying pipeline;
one end of a fourth gas conveying pipeline is communicated with the first gas conveying pipeline, the other end of the fourth gas conveying pipeline is connected with a fifth gas conveying pipeline, the connection position of the fourth gas conveying pipeline and the first gas conveying pipeline is positioned between the adsorbent purifying device and the first fan, the connection position of the fourth gas conveying pipeline and the fifth gas conveying pipeline is positioned between the fourth valve and the gas inlet, and the third valve is arranged on the fourth gas conveying pipeline;
along the gas conveying direction, the fifth valve and the sixth valve are sequentially arranged on the second gas conveying pipeline;
one end of the sixth gas conveying pipeline is communicated with the second gas conveying pipeline, the other end of the sixth gas conveying pipeline is communicated with the third gas conveying pipeline, the joint of the sixth gas conveying pipeline and the second gas conveying pipeline is located between the fifth valve and the sixth valve, and the joint of the sixth gas conveying pipeline and the third gas conveying pipeline is located between the second valve and the second fan.
The gas detection device further comprises a second detector and a pressure gauge, wherein the second detector is arranged on the fourth gas conveying pipeline, the pressure gauge is arranged on the second gas conveying pipeline, and the pressure gauge is positioned on the front side of the fifth valve along the gas conveying direction.
In addition, the technical problem to be solved by the invention is to provide a method for advanced treatment of malodorous gas with high resource utilization rate.
The advanced treatment method of the malodorous gas adopts the integrated box-type advanced treatment device of the malodorous gas to carry out the advanced treatment of the malodorous gas, and comprises the advanced treatment of the malodorous gas and the regeneration treatment of an adsorbent;
when the malodorous gas is deeply treated, firstly controlling a fourth valve, a fifth valve, a sixth valve and a seventh valve to be in an open state, and controlling the first valve, the second valve and the third valve to be in a closed state, and then treating the malodorous gas by a pretreatment assembly, a biological filter, a micro-cyclone assembly and an adsorbent purification device in sequence until the malodorous gas reaches the discharge standard and is discharged into the air from an exhaust pipe;
when the adsorbent is regenerated, firstly controlling the fourth valve, the fifth valve, the sixth valve and the seventh valve to be in a closed state, controlling the first valve, the second valve and the third valve to be in an open state, controlling the first fan to be closed, controlling the second fan to operate, then enabling fresh gas for adsorbent regeneration to enter a third gas conveying pipeline along a first gas inlet pipeline, heating the fresh gas entering the third gas conveying pipeline by using a heater, converting the fresh gas into heat carrier gas, enabling the heat carrier gas to enter an adsorbent purifying device to purge the adsorbent, blowing off odor pollutants on the surface of the adsorbent, and realizing adsorbent regeneration; hot carrier gas with malodorous pollutants enters the pretreatment assembly along the first gas conveying pipeline, the fourth gas conveying pipeline and the fifth gas conveying pipeline for treatment and then enters the biological filter for treatment, when the set value of the pressure gauge is reached, the second valve is closed, the fifth valve is opened, gas for adsorbent regeneration sequentially enters the adsorbent purification device from the biological filter along the micro-cyclone assembly, the second gas conveying pipeline, the sixth gas conveying pipeline, the third gas conveying pipeline, the second fan and the heater, the gas for adsorbent regeneration is continuously treated in the pretreatment assembly, the biological filter, the micro-cyclone assembly and the adsorbent purification device until the gas for adsorbent regeneration reaches the emission standard, whether the gas reaches the emission standard is detected by the second detector, and finally, when the gas reaches the emission standard, the seventh valve is controlled to be opened, And a first fan for discharging the gas from the exhaust pipe into the air, thereby completing the regeneration process of the adsorbent.
The invention has the beneficial effects that: the adsorption and regeneration treatment system is arranged in the box body, so that the adsorption and regeneration treatment system is convenient to transport and install, the occupied area required by installation is obviously reduced, and the adsorption and regeneration treatment system is arranged in the box body, can be used for regenerating the adsorbent in the adsorbent purification device, realizes the repeated use of the adsorbent, improves the resource utilization rate and is beneficial to large-scale use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
parts, positions and numbers in the drawings: the device comprises a box body 1, an air inlet 11, an exhaust pipe 12, a pretreatment assembly 2, a first gas distributor 21, a first packing layer 22, a first spraying pipe network 23, a first water collecting tank 24, a first water tank 25, a first water conveying pipeline 26, a first spraying water pump 27, a second water conveying pipeline 28, a biological filter 3, a second gas distributor 31, a second packing layer 32, a second spraying pipe network 33, a second water collecting tank 34, a second water tank 35, a third water conveying pipeline 36, a second spraying water pump 37, a fourth water conveying pipeline 38, an adsorbent purifying device 4, a third gas distributor 41, an adsorbent layer 42, a first gas conveying pipeline 51, a second gas conveying pipeline 52, a first fan 61, a first detector 62, a gas transition conveying channel 63, a micro-swirl assembly 7, a first air inlet pipeline 81, a second fan 82, a third gas conveying pipeline 83, a sixth gas conveying pipeline 84, a first fan 84, a second detector 62, a gas transition conveying channel 63, a micro-swirl assembly 7, a second air inlet pipeline 81, a second fan 82, a third gas conveying pipeline 83, a second gas conveying pipeline 84, a second gas distributor and a biological filter, The gas detecting device comprises a heater 85, a first valve 86, a fourth gas conveying pipeline 87, a fifth gas conveying pipeline 88, a second valve 91, a third valve 92, a fourth valve 93, a fifth valve 94, a sixth valve 95, a seventh valve 96, a second detector 97 and a pressure gauge 98.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the integrated box-type advanced treatment device for malodorous gas comprises a box body 1, wherein a malodorous gas advanced treatment system and an adsorption regeneration treatment system are arranged in the box body 1, the malodorous gas advanced treatment system comprises an adsorbent purification device 4, and an adsorbent in the adsorbent purification device 4 is subjected to regeneration treatment through the adsorption regeneration treatment system.
In order to ensure the treatment effect of the malodorous gas advanced treatment system on the malodorous gas, the preferred malodorous gas advanced treatment system of the invention is as follows: as shown in fig. 1, the box 1 is provided with an air inlet 11 and an exhaust pipe 12, the malodorous gas advanced treatment system further comprises a pretreatment module 2 and a biological filter 3, the pretreatment module 2, the biological filter 3 and the adsorbent purification device 4 are sequentially arranged in the box 1 from left to right, the air inlet 11 is communicated with the pretreatment module 2, the adsorbent purification device 4 is communicated with the exhaust pipe 12 through a first gas conveying pipeline 51, and the first gas conveying pipeline 51 is provided with a first fan 61 and a first detector 62 along the gas conveying direction. The process for treating the malodorous gas by adopting the malodorous gas advanced treatment system comprises the following steps: firstly, malodorous gas enters the pretreatment assembly 2 through the air inlet 11 to be treated, impurities such as dust particles in the malodorous gas are removed, then the malodorous gas enters the biological filter 3 to be treated, the malodorous pollutants are degraded into odorless or weakly-odorous substances by microorganisms, finally the malodorous pollutants enter the adsorbent purification device 4 to be subjected to advanced treatment, the residual malodorous pollutants in the gas are adsorbed and removed by the adsorbent and then are directly discharged into the air through the exhaust pipe 12, the first fan 61 provides power for conveying the malodorous gas, and the first detector 62 is used for detecting whether the treated gas reaches the discharge standard.
In order to further improve the treatment effect of the pretreatment module 2, the biological filter 3 and the adsorbent purifying device 4, the pretreatment module 2, the biological filter 3 and the adsorbent purifying device 4 are convenient to set, the installation and the cost are reduced, the air inlet 11 is arranged at the lower left part of the box body 1, the exhaust pipe 12 is arranged at the upper right part of the box body 1, and the pretreatment module 2 is sequentially a first gas distributor 21, a first packing layer 22 and a first gas distributor from bottom to topSpray pipe network 23, biofilter 3 is from supreme second gas distributor 31 that is in proper order down, second packing layer 32, second sprays pipe network 33, preprocessing component 2, be provided with gaseous transition transfer passage 63 between biofilter 3, gaseous transition transfer passage 63's import is located the top of first spray pipe network 23, gaseous transition transfer passage 63's export is located the below of second gas distributor 31, adsorbent purifier 4 is third gas distributor 41 from last to being in proper order down, adsorbent layer 42, biofilter 3 is linked together through second gas transmission pipeline 52 and adsorbent purifier 4, the import of second gas transmission pipeline 52 is located the top of second spray pipe network 33, the export of second gas transmission pipeline 52 is located the top of third gas distributor 41. Malodorous gas enters the pretreatment component 2 through the air inlet 11, in the pretreatment component 2, malodorous gas is conveyed from bottom to top, malodorous gas enters the first packing layer 22 for treatment after passing through the first gas distributor 21 for gas distribution, malodorous gas is conveyed upwards, malodorous gas and the first liquid (tap water or reclaimed water) sprayed down by the spraying pipe network 23 are in counter-current full contact, thereby impurities such as dust particles are removed, the sprayed liquid can also be used for humidifying malodorous gas, and the subsequent treatment effect is further improved. In order to ensure the use effect of the first spraying pipe network 23, the first spraying pipe network 23 comprises a main spraying pipe and a plurality of spraying branch pipes extending from the main spraying pipe, and each spraying branch pipe is provided with a plurality of atomizing nozzles. The material of the first packing layer 22 is preferably a chemically inert polymer material, such as polypropylene balls (PP), polyethylene rings (PE) or polyvinyl chloride rings (PVC). The malodorous gas treated by the pretreatment component 2 is conveyed to the biological filter 3 through the gas transition conveying channel 63 for secondary treatment, the malodorous gas in the biological filter 3 is also conveyed from bottom to top, the malodorous gas is in counter-current full contact with liquid sprayed by the second spraying pipe network 33, the malodorous gas is firstly distributed by the second gas distributor 31 and then enters the second packing layer 32 for treatment, the second packing layer 32 is enriched with microbial flora, under the appropriate environmental conditions (pH, temperature and the like), the microbial flora takes the malodorous substance as the nutrient substance required by the growth and reproduction of the malodorous substance, the malodorous substance is degraded by utilizing the metabolism of the microbial flora, and a metabolite, namely a metabolite, is conveyed to the biological filter 3 againPart is used by the microorganism to synthesize own cells, and the other part is excreted by the microorganism. The structure of the second spraying pipe network 33 is the same as that of the first spraying pipe network 23, the liquid sprayed by the second spraying pipe network 33 can be reclaimed water or nutrient solution which is necessary for the growth of microbial flora, and the ratio of the sprayed liquid flow to the inlet air flow is preferably 0.05L/m3-0.3L/m3The temperature is preferably 10 to 35 ℃ and the pH is preferably 5 to 8.
Because the first spraying pipe network 23 and the second spraying pipe network 33 both spray the liquid, in order to collect the sprayed liquid, the first water collecting tank 24 is further arranged below the first gas distributor 21, the second water collecting tank 34 is further arranged below the second gas distributor 31, the liquid sprayed by the first spraying pipe network 23 is collected into the first water collecting tank 24, and the liquid sprayed by the second spraying pipe network 33 is collected into the first water collecting tank 24. In order to realize the work that the first spraying pipe network 23 and the second spraying pipe network 33 can spray liquid, as shown in fig. 1, the invention is further provided with a first water inlet assembly and a second water inlet assembly, wherein the first water inlet assembly comprises a first water tank 25, a first water pipeline 26, a first spraying water pump 27 and a second water pipeline 28, and the first water tank 25 is provided with a first water inlet and a first water outlet; one end of the first water pipe 26 is communicated with the first water tank 25, the other end is communicated with the first spraying pipe network 23, and the first spraying water pump 27 is arranged on the first water pipe 26; one end of the second water pipeline 28 is communicated with the first water collecting tank 24, and the other end is communicated with the first water tank 25; the second water inlet assembly comprises a second water tank 35, a third water pipeline 36, a second spray water pump 37 and a fourth water pipeline 38, and a second water inlet and a second water outlet are formed in the second water tank 35; one end of a third water pipeline 36 is communicated with the second water tank 35, the other end of the third water pipeline is communicated with the second spraying pipe network 33, and a second spraying water pump 37 is arranged on the third water pipeline 36; one end of the fourth water pipe 38 is communicated with the second water collecting tank 34, and the other end is communicated with the second water tank 35. The first water inlet is an adding inlet of new liquid of the first water tank 25, the first water outlet is a liquid discharging outlet used in the first water tank 25, when the first water inlet assembly works, the first spray water pump 27 works to enable the liquid in the first water tank 25 to be conveyed to the first spray pipe network 23 through the first water conveying pipeline 26, the spray liquid work is completed through the first spray pipe network 23, the sprayed liquid is collected into the first water collecting tank 24 again, and then returns to the first water tank 25 through the second water conveying pipeline 28, therefore, the first water inlet assembly not only can realize the work of spraying the liquid by the first spray pipe network 23, but also can realize the reuse of the liquid, the resource utilization rate of the liquid is improved, and the treatment cost is reduced. Similarly, the second water inlet is an addition inlet of new liquid of the second water tank 35, the second water outlet is a liquid discharge outlet used in the second water tank 35, when the second water inlet assembly works, the second spray water pump 37 works to enable the liquid in the second water tank 35 to be conveyed to the second spray pipe network 33 through the third water pipe 36, the spray liquid work is completed through the second spray pipe network 33, the sprayed liquid is collected into the second water collecting tank 34 again, and then returns to the second water tank 35 through the fourth water pipe 38, therefore, the second water inlet assembly can also realize the work of spraying the liquid by the first spray pipe network 23, the reuse of the liquid can also be realized, the resource utilization rate of the liquid is improved, and the processing cost is reduced.
The malodorous gas is conveyed to the adsorbent purification device 4 through the second gas conveying pipeline 52, the malodorous gas is conveyed from top to bottom in the adsorbent purification device 4, the malodorous gas is firstly distributed through the third gas distributor 41 and then enters the adsorbent layer 42 for treatment, the adsorbent layer 42 comprises an adsorbent, and the adsorbent can be activated carbon, biochar, activated carbon fiber, molecular sieve and the like.
Because the gas treated by the pretreatment component 2 and the biological filter 3 contains higher content of water vapor, when the adsorbent purification device 4 is used for treatment, gaseous water molecules and malodorous pollutants generate strong competitive adsorption, so that the adsorption performance of the adsorbent is influenced, in order to ensure and improve the adsorption performance of the adsorbent on residual malodorous pollutants in the gas, as shown in figure 1, the invention is also provided with a micro-rotational flow component 7, the micro-rotational flow component 7 is arranged above the second gas distributor 31, the micro-rotational flow component 7 comprises a plurality of micro-rotational flow devices connected together in parallel in a single stage, an inlet of the second gas conveying pipeline 52 is communicated with an outlet of the micro-rotational flow component 7, the water vapor in the gas is separated through the micro-rotational flow component 7, the micro-rotational flow component 7 utilizes the high-speed rotation and revolution coupling of liquid drops in a gas phase flow field through the micro-rotational flow technology, in particular, the liquid drop rotation speed is 2000-.
The adsorption regeneration treatment system is used for regenerating the adsorbent in the adsorbent purification device 4, and the preferred adsorption regeneration treatment system of the invention is as follows: as shown in fig. 1 again, the adsorption regeneration treatment system includes a first air inlet pipe 81, a second fan 82, a third gas conveying pipe 83, a heater 85, and a first valve 86, wherein one end of the first air inlet pipe 81 is communicated with one end of the third gas conveying pipe 83, the other end of the third gas conveying pipe 83 is communicated with the adsorbent purification device 4, and the other end of the third gas conveying pipe 83 is located above the third gas distributor 41; the second fan 82, the heater 85, and the first valve 86 are sequentially disposed on the third gas delivery pipe 83 in the gas delivery direction. When the adsorbent in the adsorbent purification device 4 is saturated, adsorbent regeneration treatment needs to be performed, introduction of malodorous gas into the malodorous gas advanced treatment system is stopped, the second fan 82 works, the first valve 86 is opened, fresh gas (air or nitrogen) for adsorbent regeneration enters the third gas conveying pipeline 83 along the first gas inlet pipeline 81, the heater 85 heats the fresh gas entering the third gas conveying pipeline 83 to convert the fresh gas into heat carrier gas, the heat carrier gas enters the adsorbent purification device 4 to purge the adsorbent, odorous pollutants on the surface of the adsorbent are blown away, adsorbent regeneration is realized, and the adsorbent can be reused. In order to ensure the regeneration effect of the adsorbent, the temperature of the hot carrier gas is between 80 ℃ and 200 ℃, the temperature of the hot carrier gas is determined according to the type of the adsorbent, for example, for activated carbon, biochar and activated carbon fiber adsorbent, the temperature of the hot carrier gas is between 80 ℃ and 120 ℃, and for molecular sieve adsorbent, the temperature of the hot carrier gas is lower than 200 ℃.
As shown in fig. 1, the present invention further comprises a fourth gas delivery pipeline 87, a fifth gas delivery pipeline 88, a sixth gas delivery pipeline 84, a second valve 91, a third valve 92, a fourth valve 93, a fifth valve 94, a sixth valve 95, and a seventh valve 96, wherein the second valve 91 is disposed on the first gas inlet pipeline 81, the seventh valve 96 is disposed on the first gas delivery pipeline 51, and the seventh valve 96 is located between the adsorbent purifying device 4 and the first fan 61; the fifth gas delivery pipe 88 is communicated with the gas inlet 11, and the fourth valve 93 is arranged on the fifth gas delivery pipe 88; one end of a fourth gas conveying pipeline 87 is communicated with the first gas conveying pipeline 51, the other end of the fourth gas conveying pipeline 87 is connected with a fifth gas conveying pipeline 88, the connection position of the fourth gas conveying pipeline 87 and the first gas conveying pipeline 51 is positioned between the adsorbent purifying device 4 and the first fan 61, the connection position of the fourth gas conveying pipeline 87 and the fifth gas conveying pipeline 88 is positioned between a fourth valve 93 and the gas inlet 11, a third valve 92 is arranged on the fourth gas conveying pipeline 87, and a fifth valve 94 and a sixth valve 95 are sequentially arranged on the second gas conveying pipeline 52 along the gas conveying direction; one end of the sixth gas conveying pipeline 84 is communicated with the second gas conveying pipeline 52, the other end of the sixth gas conveying pipeline 84 is communicated with the third gas conveying pipeline 83, the joint of the sixth gas conveying pipeline 84 and the second gas conveying pipeline 52 is located between the fifth valve 94 and the sixth valve 95, and the joint of the sixth gas conveying pipeline 84 and the third gas conveying pipeline 83 is located between the second valve 91 and the second fan 82. Furthermore, for the convenience of control, a second detector 97 and a pressure gauge 98 are provided, the second detector 97 is disposed on the fourth gas delivery pipe 87, the pressure gauge 98 is disposed on the second gas delivery pipe 52, and the pressure gauge 98 is located at the front side of the fifth valve 94 in the gas delivery direction. When the adsorbent in the adsorbent purification device 4 is saturated, adsorbent regeneration treatment needs to be performed, introduction of malodorous gas into the malodorous gas advanced treatment system is stopped, the fourth valve 93, the fifth valve 94, the sixth valve 95 and the seventh valve 96 are controlled to be in a closed state, fresh gas (air or nitrogen) for adsorbent regeneration enters the third gas conveying pipeline 83 along the first gas inlet pipeline 81, the heater 85 heats the fresh gas entering the third gas conveying pipeline 83 to convert the fresh gas into heat carrier gas, the hot carrier gas enters the adsorbent purification device 4 to purge the adsorbent, the malodorous pollutants on the surface of the adsorbent are blown off to realize adsorbent regeneration, the adsorbent can be reused, and the hot carrier gas with the malodorous pollutants flows along the first gas conveying pipeline 51, the fourth gas conveying pipeline 87, The fifth gas delivery pipe 88 enters the pretreatment module 2 for treatment, and enters the biological filter 3 for treatment, the treatment process in the pretreatment module 2 and the biological filter 3 is the same as the treatment process of the malodorous gas, when the set value of the pressure gauge 98 is reached, the second valve 91 is closed, the fifth valve 94 is opened, the gas for adsorbent regeneration sequentially enters the adsorbent purification device 4 from the biological filter 3 along the micro-cyclone module 7, the second gas delivery pipe 52, the sixth gas delivery pipe 84, the third gas delivery pipe 83, the second fan 82 and the heater 85, a cycle is completed, that is, the gas entering the adsorption regeneration treatment system during adsorbent regeneration treatment circulates between the adsorption regeneration treatment system and the malodorous gas advanced treatment system, and the flow direction of the gas cycle for adsorbent regeneration is as follows: the gas passes through the adsorbent purification device 4, the first gas delivery pipeline 51, the fourth gas delivery pipeline 87, the fifth gas delivery pipeline 88, the pretreatment module 2, the biological filter 3, the micro-cyclone module 7, the second gas delivery pipeline 52, the sixth gas delivery pipeline 84, the third gas delivery pipeline 83, the second fan 82 and the heater 85 in sequence, finally enters the adsorbent purification device 4, is continuously treated in the pretreatment module 2 and the biological filter 3 by the adsorbent purification device 4 until the gas for adsorbent regeneration reaches the emission standard, and is detected by the second detector 97 whether the gas reaches the emission standard, and when the gas reaches the emission standard, the first valve 96 and the first fan 61 are controlled to be opened, so that the gas is discharged into the air from the exhaust pipe 12, and the regeneration treatment of the adsorbent is completed.
The advanced treatment method of the malodorous gas adopts the integrated box-type advanced treatment device of the malodorous gas to carry out the advanced treatment of the malodorous gas, and comprises the advanced treatment of the malodorous gas and the regeneration treatment of an adsorbent.
During the advanced treatment of the malodorous gas, at this time, the fourth valve 93, the fifth valve 94, the sixth valve 95 and the seventh valve 96 are in an open state, the first valve 86, the second valve 91 and the third valve 92 are in a closed state, and the treatment process of the malodorous gas is as follows: firstly, malodorous gas enters the pretreatment component 2 through the air inlet 11 for treatment, impurities such as dust particles in the malodorous gas are removed, then the malodorous gas enters the biological filter 3 for treatment, the malodorous pollutants are degraded into odorless or weakly-odorous substances by microorganisms, then the malodorous pollutants enter the micro-cyclone component 7 for water-vapor separation, and finally the malodorous pollutants enter the adsorbent purification device 4 for treatment, the residual malodorous pollutants in the gas are directly discharged into the air through the exhaust pipe 12 after being adsorbed and removed by the adsorbent, the first fan 61 provides motive power for conveying the malodorous gas, and the first detector 62 is used for detecting whether the treated gas reaches the discharge standard.
In the regeneration treatment of the adsorbent, the fourth valve 93, the fifth valve 94, the sixth valve 95, and the seventh valve 96 are first controlled to be closed, the first valve 86, the second valve 91, and the third valve 92 are controlled to be opened, the second fan 82 is operated, and when the set value of the pressure gauge 98 is reached, the second valve 91 is closed, and the fifth valve 94 is opened. The regeneration treatment process of the adsorbent comprises the following steps: fresh gas for adsorbent regeneration enters the third gas conveying pipeline 83 along the first gas inlet pipeline 81, the heater 85 heats the fresh gas entering the third gas conveying pipeline 83 to change the fresh gas into heat carrier gas, the heat carrier gas enters the adsorbent purifying device 4 to purge the adsorbent, odor pollutants on the surface of the adsorbent are blown off to realize adsorbent regeneration, the adsorbent can be reused, the heat carrier gas with the odor pollutants enters the pretreatment component 2 along the first gas conveying pipeline 51, the fourth gas conveying pipeline 87 and the fifth gas conveying pipeline 88 to be treated and enters the biological filter 3 to be treated, the treatment process in the pretreatment component 2 and the biological filter 3 is the same as that of the odor pollutants, when the set value of the pressure gauge 98 is reached, the second valve 91 is closed, the fifth valve 94 is opened, the gas for adsorbent regeneration sequentially enters the adsorbent purification device 4 from the biological filter 3 along the micro-cyclone assembly 7, the second gas conveying pipeline 52, the sixth gas conveying pipeline 84, the third gas conveying pipeline 83, the second fan 82 and the heater 85, and a cycle is completed, that is, the gas entering the adsorption regeneration treatment system during adsorbent regeneration treatment can circulate between the adsorption regeneration treatment system and the malodorous gas advanced treatment system, and the flow direction of the gas for adsorbent regeneration circulation is as follows: the gas passes through the adsorbent purification device 4, the first gas delivery pipeline 51, the fourth gas delivery pipeline 87, the fifth gas delivery pipeline 88, the pretreatment module 2, the biological filter 3, the micro-cyclone module 7, the second gas delivery pipeline 52, the sixth gas delivery pipeline 84, the third gas delivery pipeline 83, the second fan 82 and the heater 85 in sequence, finally enters the adsorbent purification device 4, is continuously treated in the pretreatment module 2 and the biological filter 3 by the adsorbent purification device 4 until the gas for adsorbent regeneration reaches the emission standard, and is detected by the second detector 97 whether the gas reaches the emission standard, and when the gas reaches the emission standard, the seventh valve 96 and the first fan 61 are controlled to be opened, so that the gas is discharged into the air from the exhaust pipe 12, and the regeneration treatment of the adsorbent is completed.
In summary, by arranging the box body 1, the malodorous gas advanced treatment system is arranged in the box body, that is, the malodorous gas advanced treatment system is of an integrated box-type structure connected together, so that the transportation and the installation are convenient, the occupied area required by the installation is obviously reduced, and the adsorption and regeneration treatment system is also arranged in the invention, and performs regeneration treatment on the adsorbent in the adsorbent purification device, thereby realizing the repeated use of the adsorbent, improving the resource utilization rate and being beneficial to large-scale use, and meanwhile, the adsorption and regeneration treatment system is also arranged in the box body 1, and the transportation and the installation are also convenient due to the integrated box-type structure formed by connecting the malodorous gas advanced treatment system and the adsorption and regeneration treatment system together.
Claims (10)
1. The device of box foul gas advanced treatment of integration, its characterized in that: the device comprises a box body (1), wherein a malodorous gas advanced treatment system and an adsorption regeneration treatment system are arranged in the box body (1), the malodorous gas advanced treatment system comprises an adsorbent purification device (4), and an adsorbent in the adsorbent purification device (4) is subjected to regeneration treatment through the adsorption regeneration treatment system.
2. The integrated box-type malodorous gas advanced treatment device as claimed in claim 1, wherein: be provided with air inlet (11) on box (1), blast pipe (12), foul gas advanced treatment system still includes pretreatment module (2), biofilter (3), adsorbent purifier (4) set gradually in box (1) from a left side to the right side, air inlet (11) are linked together with pretreatment module (2), adsorbent purifier (4) are linked together through first gas transmission pipeline (51) and blast pipe (12), along the gas conveying direction, be provided with first fan (61) on first gas transmission pipeline (51), first detector (62).
3. The integrated box-type malodorous gas advanced treatment device as claimed in claim 2, wherein: the air inlet (11) is arranged at the left lower part of the box body (1), and the exhaust pipe (12) is arranged at the right upper part of the box body (1);
the pretreatment component (2) is sequentially provided with a first gas distributor (21), a first packing layer (22) and a first spraying pipe network (23) from bottom to top;
the biological filter (3) is sequentially provided with a second gas distributor (31), a second packing layer (32) and a second spraying pipe network (33) from bottom to top;
a gas transition conveying channel (63) is arranged between the pretreatment component (2) and the biological filter (3), the inlet of the gas transition conveying channel (63) is positioned above the first spraying pipe network (23), and the outlet of the gas transition conveying channel (63) is positioned below the second gas distributor (31);
the adsorbent purification device (4) is provided with a third gas distributor (41) and an adsorbent layer (42) from top to bottom in sequence;
the biological filter (3) is communicated with the adsorbent purifying device (4) through a second gas conveying pipeline (52), the inlet of the second gas conveying pipeline (52) is positioned above the second spraying pipe network (33), and the outlet of the second gas conveying pipeline (52) is positioned above the third gas distributor (41).
4. The integrated box-type malodorous gas advanced treatment device as claimed in claim 3, wherein: the gas distribution device further comprises a micro-cyclone assembly (7), the micro-cyclone assembly (7) is arranged above the second gas distributor (31), the micro-cyclone assembly (7) comprises a plurality of single-stage micro-cyclones which are connected together in parallel, and the inlet of the second gas conveying pipeline (52) is communicated with the outlet of the micro-cyclone assembly (7).
5. The integrated box-type malodorous gas advanced treatment device as claimed in claim 3, wherein: a first water collecting tank (24) is arranged below the first gas distributor (21), and a second water collecting tank (34) is arranged below the second gas distributor (31).
6. The integrated box-type malodorous gas advanced treatment device as claimed in claim 5, wherein: the water-saving device is also provided with a first water inlet assembly and a second water inlet assembly, wherein the first water inlet assembly comprises a first water tank (25), a first water conveying pipeline (26), a first spray pump (27) and a second water conveying pipeline (28), and a first water inlet and a first water outlet are formed in the first water tank (25);
one end of the first water pipe (26) is communicated with the first water tank (25), the other end of the first water pipe is communicated with the first spraying pipe network (23), and the first spraying water pump (27) is arranged on the first water pipe (26);
one end of the second water pipeline (28) is communicated with the first water collecting tank (24), and the other end is communicated with the first water tank (25);
the second water inlet assembly comprises a second water tank (35), a third water pipeline (36), a second spray water pump (37) and a fourth water pipeline (38), and a second water inlet and a second water outlet are formed in the second water tank (35);
one end of a third water pipe (36) is communicated with the second water tank (35), the other end of the third water pipe is communicated with a second spraying pipe network (33), and a second spraying water pump (37) is arranged on the third water pipe (36);
one end of the fourth water pipeline (38) is communicated with the second water collecting tank (34), and the other end is communicated with the second water tank (35).
7. The integrated box type advanced malodorous gas treatment device as claimed in any one of claims 3 to 6, wherein: the adsorption regeneration treatment system comprises a first air inlet pipeline (81), a second fan (82), a third gas conveying pipeline (83), a heater (85) and a first valve (86), wherein one end of the first air inlet pipeline (81) is communicated with one end of the third gas conveying pipeline (83), the other end of the third gas conveying pipeline (83) is communicated with the adsorbent purification device (4), and the other end of the third gas conveying pipeline (83) is positioned above the third gas distributor (41);
and along the gas conveying direction, the second fan (82), the heater (85) and the first valve (86) are sequentially arranged on the third gas conveying pipeline (83).
8. The integrated box-type malodorous gas advanced treatment device as claimed in claim 7, wherein: the gas pipeline device also comprises a fourth gas conveying pipeline (87), a fifth gas conveying pipeline (88), a sixth gas conveying pipeline (84), a second valve (91), a third valve (92), a fourth valve (93), a fifth valve (94), a sixth valve (95) and a seventh valve (96);
the second valve (91) is arranged on the first air inlet pipeline (81);
the seventh valve (96) is arranged on the first gas conveying pipeline (51), and the seventh valve (96) is positioned between the adsorbent purifying device (4) and the first fan (61);
the fifth gas conveying pipeline (88) is communicated with the gas inlet (11), and the fourth valve (93) is arranged on the fifth gas conveying pipeline (88);
one end of a fourth gas conveying pipeline (87) is communicated with the first gas conveying pipeline (51), the other end of the fourth gas conveying pipeline (87) is connected with a fifth gas conveying pipeline (88), the connection position of the fourth gas conveying pipeline (87) and the first gas conveying pipeline (51) is positioned between the adsorbent purifying device (4) and the first fan (61), the connection position of the fourth gas conveying pipeline (87) and the fifth gas conveying pipeline (88) is positioned between a fourth valve (93) and the gas inlet (11), and a third valve (92) is arranged on the fourth gas conveying pipeline (87);
along the gas conveying direction, a fifth valve (94) and a sixth valve (95) are sequentially arranged on the second gas conveying pipeline (52);
one end of a sixth gas conveying pipeline (84) is communicated with the second gas conveying pipeline (52), the other end of the sixth gas conveying pipeline (84) is communicated with the third gas conveying pipeline (83), the connection position of the sixth gas conveying pipeline (84) and the second gas conveying pipeline (52) is located between a fifth valve (94) and a sixth valve (95), and the connection position of the sixth gas conveying pipeline (84) and the third gas conveying pipeline (83) is located between a second valve (91) and a second fan (82).
9. The integrated box-type malodorous gas advanced treatment device as claimed in claim 8, wherein: the gas detection device is characterized by further comprising a second detector (97) and a pressure gauge (98), wherein the second detector (97) is arranged on the fourth gas conveying pipeline (87), the pressure gauge (98) is arranged on the second gas conveying pipeline (52), and the pressure gauge (98) is located on the front side of the fifth valve (94) along the gas conveying direction.
10. The method for advanced treatment of malodorous gas is characterized by comprising the following steps: the integrated box type malodorous gas advanced treatment device as claimed in claim 9 is adopted to carry out malodorous gas advanced treatment, and the malodorous gas advanced treatment method comprises malodorous gas advanced treatment and adsorbent regeneration treatment;
when the malodorous gas is deeply treated, firstly, the fourth valve (93), the fifth valve (94), the sixth valve (95) and the seventh valve (96) are controlled to be in an open state, the first valve (86), the second valve (91) and the third valve (92) are controlled to be in a closed state, and then the malodorous gas is treated by the pretreatment component (2), the biological filter (3), the micro-cyclone component (7) and the adsorbent purification device (4) in sequence until reaching the emission standard and is discharged into the air from the exhaust pipe (12);
when the adsorbent is regenerated, firstly controlling a fourth valve (93), a fifth valve (94), a sixth valve (95) and a seventh valve (96) to be in a closed state, controlling a first valve (86), a second valve (91) and a third valve (92) to be in an open state, closing a first fan (61), operating a second fan (82), then feeding fresh gas for adsorbent regeneration into a third gas conveying pipeline (83) along a first gas inlet pipeline (81), heating the fresh gas fed into the third gas conveying pipeline (83) by a heater (85), converting the fresh gas into heat carrier gas, feeding the heat carrier gas into an adsorbent purifying device (4) to purge the adsorbent, blowing off odor pollutants on the surface of the adsorbent, and realizing adsorbent regeneration; the hot carrier gas with odor pollutants enters the pretreatment component (2) along the first gas conveying pipeline (51), the fourth gas conveying pipeline (87) and the fifth gas conveying pipeline (88) to be treated and then enters the biological filter (3) to be treated, when the set value of a pressure gauge (98) is reached, the second valve (91) is closed, the fifth valve (94) is opened, the gas for adsorbent regeneration sequentially enters the adsorbent purification device (4) from the biological filter (3) along the micro-cyclone component (7), the second gas conveying pipeline (52), the sixth gas conveying pipeline (84), the third gas conveying pipeline (83), the second fan (82) and the heater (85), and the hot carrier gas is continuously treated in the pretreatment component (2), the biological filter (3), the micro-cyclone component (7) and the adsorbent purification device (4) until the gas for adsorbent regeneration reaches the emission standard, and detecting whether the gas reaches the emission standard or not through a second detector (97), and finally, controlling to open a seventh valve (96) and a first fan (61) when the gas reaches the emission standard so that the gas is discharged into the air from the exhaust pipe (12), thereby finishing the regeneration treatment of the adsorbent.
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