CN114307622B

CN114307622B - Biological filter bed exhaust gas purification device

Info

Publication number: CN114307622B
Application number: CN202210002230.6A
Authority: CN
Inventors: 张琦; 李锦清; 李子明
Original assignee: Shenzhen Teng Lang Regeneration Resource Development Co ltd
Current assignee: Shenzhen Teng Lang Regeneration Resource Development Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-10-11
Anticipated expiration: 2042-01-04
Also published as: CN114307622A

Abstract

The invention discloses a waste gas purification device of a biological filter bed, which comprises a treatment tank, wherein a lower partition plate is fixedly arranged at the upper end of the treatment tank, a lower barrel is fixedly arranged at the upper end of the lower partition plate, a middle partition plate is fixedly arranged at the upper end of the lower barrel, a middle barrel is fixedly arranged at the upper end of the middle partition plate, an upper partition plate is fixedly arranged at the upper end of the middle barrel, an upper barrel is fixedly arranged at the right part of the upper end of the upper partition plate, and a top plate is fixedly arranged at the upper end of the upper barrel. According to the biological filter bed waste gas purification device, three purification treatment devices are arranged, each purification treatment device comprises a biological filler layer, microorganisms in the biological filler layers purify waste gas, the three purification treatment devices can be alternately used by taking two purification treatment devices as a group, so that impact of airflow on the microorganisms at the lower part of the biological filler layers can be avoided, the distribution uniformity of the microorganisms in the biological filler layers is ensured, and the microorganisms in the biological filler layers have a better treatment effect on the waste gas.

Description

Biological filter bed exhaust gas purification device

Technical Field

The invention relates to the technical field of waste gas purification devices, in particular to a biological filter bed waste gas purification device.

Background

The biological method is to use microbes to absorb and decompose pollutant waste gas. The characteristic that the microbial strains absorb organic waste gas as nutrient substances in the growth and reproduction processes is utilized, and harmful ingredients in the waste gas are degraded into carbon dioxide, water and cell composition substances, so that the aim of treating the waste gas is fulfilled. The biological filter bed is a malodorous gas treatment device which achieves the aim of deodorization by adopting humidification pretreatment and biological filtration. The biological filter bed utilizes the biochemical action of microorganisms to decompose pollutants and convert the pollutants into harmless or less harmful substances, the microorganisms utilize organic matters as substrates required by the growth and the propagation of the microorganisms, macromolecules or organic matters with complex structures are finally oxidized and decomposed into simple inorganic matters such as water, carbon dioxide and the like through dissimilation by different conversion ways, and simultaneously organisms of the microorganisms are increased and propagated through assimilation and energy generated in the dissimilation process, so that favorable conditions are created for further exerting the treatment capacity of the microorganisms on the organic matters.

The existing biological filter bed is found to have the following defects in use:

1. the microorganisms in the biofilter bed are positioned in the gaps in the biological filler layer, waste gas passes through the gaps in the biological filler layer and is absorbed and treated by the microorganisms, and the waste gas is converted into harmless gas;

2. when the nutrient solution is supplemented to the microorganisms in the biological filler layer, the nutrient solution is supplemented in multiple times usually, and more nutrient solution is supplemented at one time, but because of gaps existing in the biological filler layer, the nutrient solution actually remained in the biological filler layer is not much, the supplement effect of the nutrient solution is not good, and the supplement effect is still to be improved.

Disclosure of Invention

The invention mainly aims to provide a biological filter bed waste gas purification device which can effectively solve the problems in the background technology.

In order to realize the purpose, the invention adopts the technical scheme that:

the upper end of the upper bracket is connected with a movable clamping and mounting mechanism, the upper ends of the three movable clamping and mounting mechanisms are respectively provided with three fluid supplementing and mounting mechanisms, and the upper ends of the three movable clamping and mounting mechanisms are respectively connected with three fluid supplementing and mounting mechanisms.

Preferably, it is three purification unit respectively with the inner wall of lower barrel, the inner wall of well barrel and the inner wall fixed connection who goes up the barrel, it is three installation mechanism respectively with the inner wall of lower barrel, the inner wall of well barrel and the inner wall fixed connection who goes up the barrel, it has a moisturizing pipe, no. two moisturizing pipes and No. three moisturizing pipes to alternate fixed mounting respectively down the right-hand member lower part of barrel, the right-hand member lower part of well barrel and the right-hand member lower part of last barrel, the left end lower part of lower barrel, the left end lower part of well barrel and the equal fixed mounting of the left end lower part of last barrel have a circulating pump, it is three the equal fixed mounting of input of circulating pump has a transfer line, three the equal fixed mounting of output of circulating pump has No. two transfer lines, the left end lower part of handling the pond alternates fixed mounting and has the intake pipe.

Preferably, it is three the one end that the circulating pump was kept away from to No. one transfer line is located the below of three net frame respectively, and is three the one end that the circulating pump was kept away from to No. two transfer lines links to each other with three fluid infusion device respectively, the upper end left part of baffle alternates fixed mounting down has a honeycomb duct, the upper end right part of median septum alternates fixed mounting has No. two honeycomb ducts, the right-hand member front portion of riser alternates fixed mounting down has No. three honeycomb ducts, the right-hand member of going up the riser alternates fixed mounting and has No. four honeycomb ducts, the upper end left part of going up the baffle alternates fixed mounting and has No. two blast pipes, the upper end of roof alternates fixed mounting and has an blast pipe.

Preferably, the device that looses flows includes main scattered class cover, the lower extreme fixed mounting of main scattered class cover has the fore-set No. one, the lower extreme of the fore-set and the upper end fixed connection of air duct, the upper end middle part interlude fixed mounting of main scattered class cover has the gas distribution pipe No. one, no. one gas distribution pipe's upper end fixed mounting has the fore-set No. two, the upper end fixed mounting of No. two fore-sets has vice scattered class cover No. one, the upper end interlude fixed mounting of main scattered class cover has the gas distribution pipe No. two, no. two gas distribution pipe's upper end fixed mounting has the fore-set No. three, the upper end fixed mounting of No. three fore-sets has vice scattered class cover No. two.

Preferably, the main diffuser is of a shell structure, the front outline shape and the left outline shape of the main diffuser are both isosceles trapezoids, the first auxiliary diffuser and the second auxiliary diffuser are both of conical shell structures, and the second gas distribution pipe is provided with a plurality of gas distribution pipes which are irregularly distributed around the first gas distribution pipe; the purification treatment device comprises a lower frame plate, a lower enclosing frame is fixedly arranged in the middle of the upper end of the lower frame plate, a biological filler layer is arranged at the upper end of the lower frame plate, and the biological filler layer is movably arranged in the lower enclosing frame; the upper bracket comprises an upper frame plate, and an upper enclosure frame is fixedly mounted in the middle of the upper end of the upper frame plate.

Preferably, the upper end of the upper frame plate is provided with four air grooves which are distributed around the upper enclosing frame; the installation mechanism comprises a tray, a lower through hole is formed in the lower end of the tray, a guide pipe is fixedly inserted into the lower end of the tray, the upper end of the guide pipe extends to the upper side of the tray, and a liquid spraying cover is fixedly installed at the lower end of the guide pipe; adjusting device includes the imbibition board, the upper end of imbibition board has been seted up and has been perforated, the lower extreme fixedly connected with dropping liquid awl of imbibition board, the imbibition board is made by the sponge integral type with the dropping liquid awl.

Preferably, the fluid infusion device includes a connecting pipe and No. two connecting pipes, no. two connecting pipes are located the top of a connecting pipe, no. one liquid distribution pipe and No. two liquid distribution pipes are fixed mounting respectively to the right-hand member of a connecting pipe and the right-hand member of No. two connecting pipes, no. three liquid distribution pipes and No. four liquid distribution pipes are fixed mounting respectively to the left end of a connecting pipe and the left end of No. two connecting pipes, common fixed mounting has the three-way pipe between No. three liquid distribution pipes and No. four liquid distribution pipes, no. one small opening and No. two small openings have been seted up respectively to the lower extreme of a liquid distribution pipe and the lower extreme of No. two liquid distribution pipes.

Preferably, tray activity joint last enclose in the frame and with the upper end contact of last deckle board, imbibition board activity joint is in the tray, the dropping liquid awl is worn to establish in the perforation down, the upper end of pipe is passed and is perforated and alternate fixed mounting in No. two leaks, the lower extreme of a branch liquid pipe and the upper end contact of tray, the three-way pipe is linked together with No. two transfer lines, common fixed mounting has the fagging between a branch liquid pipe and No. two branch liquid pipes.

Preferably, all install the solenoid valve on air duct, honeycomb duct, no. two honeycomb ducts, no. three honeycomb ducts, no. four honeycomb ducts, an blast pipe and No. two blast pipes.

Preferably, the front end right part of barrel, the front end left part of well barrel and the front end of going up the barrel are respectively the joint and are installed apron, no. two apron and No. three apron down.

Compared with the prior art, the invention has the following beneficial effects:

1. through setting up three purification unit, every purification unit all includes a biological packing layer, and the intraformational microorganism of biological packing carries out purification treatment to waste gas, and three purification unit is "article" font and distributes, and this "article" word is horizontal setting, can improve this purification unit greatly to the purification upper limit of waste gas, makes this device can satisfy the purification needs of a large amount of waste gases, and the practicality is high.

2. The electromagnetic valves on the three gas guide pipes, the electromagnetic valve on the third flow guide pipe, the electromagnetic valve on the fourth flow guide pipe and the electromagnetic valve on the first exhaust pipe are opened, so that the waste gas sequentially passes through the gas guide pipe at the lower right, the third flow guide pipe, the gas guide pipe at the upper left, the fourth flow guide pipe and the gas guide pipe at the upper right and is exhausted through the first exhaust pipe, and all three purification treatment devices can be used; only two purification treatment devices on the right side can be used by opening the electromagnetic valve on the air guide pipe on the lower right, the electromagnetic valve on the guide pipe II, the electromagnetic valve on the air guide pipe on the upper right and the electromagnetic valve on the exhaust pipe I; the lower purification treatment device and the upper left purification treatment device can be used by opening the electromagnetic valve on the air guide pipe at the lower right, the electromagnetic valve on the flow guide pipe III, the electromagnetic valve on the air guide pipe at the upper left and the electromagnetic valve on the exhaust pipe II; through opening solenoid valve on a honeycomb duct, solenoid valve on the upper left air duct, solenoid valve on No. four honeycomb ducts, solenoid valve on the upper right air duct and the solenoid valve on the blast pipe, can use the purification unit of upper left and purification unit of upper right, convenient to use, flexibility.

3. By arranging the three purification treatment devices, when maintenance is needed, only the purification treatment devices at different positions need to be stopped in sequence, the three purification treatment devices can be alternately used by taking two purification treatment devices as a group, so that the purification treatment devices are convenient to maintain and replace, maintenance can be carried out without stopping, at least two purification treatment devices can be ensured to purify waste gas, the continuity of waste gas purification operation is ensured, and the practicability is higher; meanwhile, the three purification treatment devices are alternately used by taking two purification treatment devices as a group, so that the purification time of each purification treatment device is not overlong under the condition of constant total use time, microorganisms in each purification treatment device can have the time for rest, growth and reproduction, and each purification treatment device can always keep high waste gas treatment capacity.

4. Through the arrangement of the flow dispersing device, in the use process of the purification treatment device, a part of waste gas flowing in through the gas guide pipe flows out through the first gas distribution pipe and contacts with the first auxiliary flow dispersing cover under the action of the flow dispersing device to form low-speed turbulent flow, a part of waste gas contacts with the lower end of the main flow dispersing cover and is dispersed from the edge of the main flow dispersing cover at low speed, and the rest of waste gas flows out through the second gas distribution pipe and contacts with the second auxiliary flow dispersing cover to form low-speed turbulent flow.

5. Through setting up adjusting device and fluid infusion device, all install the solenoid valve on No. three liquid separating tubes and No. four liquid separating tubes, control nutrient solution gets into liquid separating tube No. one still or gets into liquid separating tube No. two. The vent groove is used for passing through the waste gas after being treated by the microorganisms. The second leak hole is matched with the conduit and the liquid spraying cover for use, so that the rapid and large-scale supplement of nutrient solution can be realized, and the function of spraying a large amount of nutrient solution on the biological packing layer at one time can be realized; through the imbibition board and the dropping liquid awl of making by the sponge to and a small opening, after the nutrient solution fell on the imbibition board, can form the liquid drop below the dropping liquid awl, can make the slow effect that drops on the bio-packing layer of nutrient solution, play continuously, slowly supply the effect of nutrient solution, the more convenient to use, the nutrient solution that is convenient for supply the microorganism needs, the supplementary effect of nutrient solution is better, make the microorganism keep faster growth rate, the improvement is to the treatment effeciency and the treatment effect of waste gas.

Drawings

FIG. 1 is an overall configuration diagram of a biofilter bed exhaust gas purification apparatus according to the present invention;

FIG. 2 is a schematic view showing the internal structure of a biofilter bed waste gas purification apparatus according to the present invention;

FIG. 3 is a schematic structural view of a screen frame of a biofilter bed exhaust gas purification device according to the present invention;

FIG. 4 is a schematic structural view of a flow dispersing device of a biofilter bed exhaust gas purification device according to the present invention;

FIG. 5 is a schematic bottom view of a diffuser of an apparatus for purifying waste gas from a biofilter bed according to the present invention;

FIG. 6 is a schematic structural view of a purification treatment apparatus of a biofilter bed exhaust gas purification apparatus according to the present invention;

FIG. 7 is a schematic structural diagram of an upper bracket, an installation mechanism, an adjustment device and a liquid replenishing device of a biofilter bed waste gas purification device, according to the present invention;

FIG. 8 is a schematic structural diagram of a mounting mechanism, an adjusting device and a fluid infusion device of a biofilter bed exhaust gas purification device according to the present invention;

FIG. 9 is a schematic connection diagram of the mounting mechanism, the adjusting device and the fluid infusion device of the waste gas purification device of the biofilter bed.

In the figure: 1. a treatment tank; 2. a lower partition plate; 3. a lower cylinder body; 4. a middle partition plate; 5. a middle cylinder body; 6. an upper partition plate; 7. an upper cylinder body; 8. a top plate; 9. a lower vertical plate; 10. an upper vertical plate; 11. an air duct; 12. a screen frame; 13. a filter plate; 14. a flow dispersing device; 15. a purification treatment device; 16. an upper bracket; 17. an installation mechanism; 18. an adjustment device; 19. a liquid supplementing device; 20. a flow guide pipe I; 21. a second flow guide pipe; 22. a third honeycomb duct; 23. a fourth honeycomb duct; 24. a first exhaust pipe; 25. a second exhaust pipe; 26. a first liquid supplementing pipe; 27. a second liquid supplementing pipe; 28. a third liquid supplementing pipe; 29. an air inlet pipe; 30. a first cover plate; 31. a second cover plate; 32. a third cover plate; 33. a circulation pump; 34. a first transfusion tube; 35. a second infusion tube; 141. a primary diffuser shroud; 142. a first jack post; 143. a first gas distributing pipe; 144. a second gas distributing pipe; 145. a second support pillar; 146. a third support pillar; 147. a first auxiliary flow dispersing cover; 148. a second auxiliary flow dispersing cover; 151. a lower frame plate; 152. a lower enclosure frame; 153. a biological filler layer; 161. an upper frame plate; 162. an upper enclosure frame; 163. a vent channel; 171. a tray; 172. a conduit; 173. a liquid spraying cover; 174. lower punching; 181. a liquid suction plate; 182. perforating; 183. a dropping cone; 191. a first connecting pipe; 192. a second connecting pipe; 193. a liquid separating pipe I; 194. a second liquid separating pipe; 1941. a supporting plate; 195. a third liquid separating pipe; 196. a fourth liquid separating pipe; 197. a first leak hole; 198. a second leak hole; 199. a three-way pipe.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

As shown in fig. 1-9, a biological filter bed exhaust gas purification device, including a treatment tank 1, a lower partition plate 2 is fixedly installed at the upper end of the treatment tank 1, a lower cylinder 3 is fixedly installed at the upper end of the lower partition plate 2, a middle partition plate 4 is fixedly installed at the upper end of the lower cylinder 3, a middle cylinder 5 is fixedly installed at the upper end of the middle partition plate 4, an upper partition plate 6 is fixedly installed at the upper end of the middle cylinder 5, an upper cylinder 7 is fixedly installed at the right upper end of the upper partition plate 6, a top plate 8 is fixedly installed at the upper end of the upper cylinder 7, a lower vertical plate 9 is fixedly installed at the left upper end of the lower partition plate 2, a lower vertical plate 9 is fixedly installed at the left upper end of the upper partition plate 2, an upper air duct 11 is fixedly installed at the left upper end of the upper partition plate 6, a mesh frame 12 is movably sleeved at the upper portion of the outer cylindrical surface of the three air ducts 11, a filter plate 13 is movably clamped in the mesh frame 12, a diffuser 14 is fixedly installed at the upper end of the three diffuser devices, a diffuser 18 is fixedly installed above the three diffuser devices, three diffuser devices 15, three diffuser devices 18 and a bracket 18 is provided with a bracket 17, three diffuser 17 and a diffuser 17, three diffuser 17 are respectively arranged above the diffuser 17, and a diffuser 17, three diffuser 17 are respectively.

Three purification treatment devices 15 are respectively fixedly connected with the inner wall of the lower barrel 3, the inner wall of the middle barrel 5 and the inner wall of the upper barrel 7, three mounting mechanisms 17 are respectively fixedly connected with the inner wall of the lower barrel 3, the inner wall of the middle barrel 5 and the inner wall of the upper barrel 7, the lower part of the right end of the lower barrel 3, the lower part of the right end of the middle barrel 5 and the lower part of the right end of the upper barrel 7 are respectively and fixedly provided with a liquid supplementing pipe 26, a liquid supplementing pipe 27 and a liquid supplementing pipe 28 in an inserting way, the lower part of the left end of the lower barrel 3, the lower part of the left end of the middle barrel 5 and the lower part of the left end of the upper barrel 7 are respectively and fixedly provided with a circulating pump 33, liquid conveying pipes 34 are respectively and fixedly provided at the input ends of the three circulating pumps 33, liquid conveying pipes 35 are respectively and fixedly provided at the output ends of the three circulating pumps 33, and air inlet pipes 29 are respectively and fixedly provided at the lower part of the left end of the treatment pool 1 in an inserting way. No. one fluid infusion pipe 26, all install the control valve on No. two fluid infusion pipes 27 and No. three fluid infusion pipe 28, fluid infusion pipe 26, no. two fluid infusion pipes 27 and No. three fluid infusion pipe 28 all are used for supplementing the nutrient solution of cultivateing the microorganism, the nutrient solution is in the cavity of net frame 12 below, make things convenient for the replenishment of nutrient solution, take out the nutrient solution in the cavity of net frame 12 below through circulating pump 33 and a transfer line 34, and make in the nutrient solution inputs fluid infusion device 19 through No. two transfer lines 35, make the nutrient solution loose in bio-packing layer 153, make things convenient for the growth of microorganism, thereby guarantee the treatment effect of microorganism to waste gas.

Three transfer line 34 one keeps away from the one end of circulating pump 33 and is located the below of three net frame 12 respectively, three No. two transfer lines 35 keep away from the one end of circulating pump 33 and link to each other with three fluid infusion device 19 respectively, the upper end left part interlude fixed mounting of lower baffle 2 has honeycomb duct 20 No. one, the upper end right part interlude fixed mounting of median septum 4 has honeycomb duct 21 No. two, the anterior interlude fixed mounting of right-hand member of lower riser 9 has honeycomb duct 22 No. three, the right-hand member of going up riser 10 interlude fixed mounting has honeycomb duct 23 No. four, the upper end left part interlude fixed mounting of going up baffle 6 has blast pipe 25 No. two, the upper end interlude fixed mounting of roof 8 has blast pipe 24 No. one. Solenoid valves are arranged on the gas guide tube 11, the first guide tube 20, the second guide tube 21, the third guide tube 22, the fourth guide tube 23, the first exhaust tube 24 and the second exhaust tube 25. The three purification treatment devices 15 can be used by opening the electromagnetic valves on the three gas guide tubes 11, the electromagnetic valve on the third flow guide tube 22, the electromagnetic valve on the fourth flow guide tube 23 and the electromagnetic valve on the first exhaust tube 24 to enable the waste gas to sequentially pass through the gas guide tube 11 at the lower right, the third flow guide tube 22, the gas guide tube 11 at the upper left, the fourth flow guide tube 23 and the gas guide tube 11 at the upper right and then to be exhausted through the first exhaust tube 24; only two purification treatment devices 15 on the right side can be used by opening the electromagnetic valve on the air guide pipe 11 on the lower right, the electromagnetic valve on the draft tube 21 II, the electromagnetic valve on the air guide pipe 11 on the upper right and the electromagnetic valve on the exhaust pipe 24I; the lower purification treatment device 15 and the upper left purification treatment device 15 can be used by opening the electromagnetic valve on the lower right air guide tube 11, the electromagnetic valve on the third air guide tube 22, the electromagnetic valve on the upper left air guide tube 11, and the electromagnetic valve on the second air exhaust tube 25; by opening the electromagnetic valve on the first draft tube 20, the electromagnetic valve on the upper left air duct 11, the electromagnetic valve on the fourth draft tube 23, the electromagnetic valve on the upper right air duct 11, and the electromagnetic valve on the first exhaust tube 24, the upper left purification treatment device 15 and the upper right purification treatment device 15 can be used, and the use is convenient.

The diffusing device 14 comprises a main diffusing cover 141, a first ejection column 142 is fixedly mounted at the lower end of the main diffusing cover 141, the lower end of the first ejection column 142 is fixedly connected with the upper end of the air guide tube 11, a first air distribution tube 143 penetrates through and is fixedly mounted in the middle of the upper end of the main diffusing cover 141, a second ejection column 145 is fixedly mounted at the upper end of the first air distribution tube 143, a first auxiliary diffusing cover 147 is fixedly mounted at the upper end of the second ejection column 145, a second air distribution tube 144 penetrates through and is fixedly mounted at the upper end of the main diffusing cover 141, a third ejection column 146 is fixedly mounted at the upper end of the second air distribution tube 144, and a second auxiliary diffusing cover 148 is fixedly mounted at the upper end of the third ejection column 146. The waste gas flowing in through the gas guide tube 11 can be converted into low-speed turbulent flow from high-speed airflow under the action of the main diffusion cover 141, the first auxiliary diffusion cover 147 and the second auxiliary diffusion cover 148, and the low-speed turbulent flow is diffused at the lower end of the biological filler layer 153 and permeates into the biological filler layer 153, so that the waste gas is subjected to microbial filtration treatment by the biological filler layer 153, and the treatment effect is better.

The main diffuser cap 141 is of a shell structure, the front view outline shape and the left view outline shape of the main diffuser cap 141 are both isosceles trapezoids, the first auxiliary diffuser cap 147 and the second auxiliary diffuser cap 148 are both of conical shell structures, and the second gas distribution pipe 144 is provided with a plurality of gas distribution pipes which are randomly distributed around the first gas distribution pipe 143; the purification treatment device 15 comprises a lower frame plate 151, a lower enclosure frame 152 is fixedly arranged in the middle of the upper end of the lower frame plate 151, a biological filler layer 153 is arranged at the upper end of the lower frame plate 151, and the biological filler layer 153 is movably arranged in the lower enclosure frame 152; the upper bracket 16 includes an upper frame plate 161, and an upper surrounding frame 162 is fixedly mounted to an upper middle portion of the upper frame plate 161. By arranging the secondary air dispersing covers 148, the disturbing effect on the air flow can be strengthened, the high-speed air flow is fully converted into low-speed turbulent flow, and the using effect is improved.

The upper end of the upper frame plate 161 is provided with four ventilation slots 163, and the four ventilation slots 163 are distributed around the upper surrounding frame 162; the mounting mechanism 17 comprises a tray 171, a lower through hole 174 is formed at the lower end of the tray 171, a guide pipe 172 is fixedly inserted into the lower end of the tray 171, the upper end of the guide pipe 172 extends to the upper part of the tray 171, and a liquid spraying cover 173 is fixedly mounted at the lower end of the guide pipe 172; adjusting device 18 includes imbibition board 181, and last perforation 182 has been seted up to the upper end of imbibition board 181, and the lower extreme fixedly connected with dropping liquid awl 183 of imbibition board 181, imbibition board 181 and dropping liquid awl 183 are made by the sponge integral type. The air channel 163 is used for through the waste gas after microbiological treatment, through setting up pipe 172 and hydrojet cover 173, can play the effect of once only spraying a large amount of nutrient solutions on bio-packing layer 153, through imbibition board 181 and the dropping liquid awl 183 of being made by the sponge, can make the effect that the nutrient solution slowly dripped on bio-packing layer 153, play the effect that lasts, slowly supply the nutrient solution, the more convenient to use.

Liquid supplementing device 19 includes connecting pipe 191 and connecting pipe 192 No. two, connecting pipe 192 is located the top of connecting pipe 191 No. two, the right-hand member of connecting pipe 191 and the right-hand member of connecting pipe 192 do not have fixed mounting a branch liquid pipe 193 and No. two branch liquid pipes 194, the left end of connecting pipe 191 and the left end of connecting pipe 192 do not have fixed mounting three number branch liquid pipe 195 and No. four branch liquid pipe 196, common fixed mounting has three-way pipe 199 between No. three branch liquid pipe 195 and No. four branch liquid pipe 196, no. one weeping hole 197 and No. two weeping holes 198 have been seted up respectively to the lower extreme of a branch liquid pipe 193 and the lower extreme of No. two branch liquid pipe 194. Solenoid valves are arranged on the third liquid separating pipe 195 and the fourth liquid separating pipe 196 to control whether the nutrient solution enters the first liquid separating pipe 193 or the second liquid separating pipe 194, the first leakage hole 197 is matched with the liquid absorbing plate 181 and the liquid dropping cone 183 to form a dripping effect, and the second leakage hole 198 is matched with the guide pipe 172 and the liquid spraying cover 173 to realize rapid and large-scale supplement of the nutrient solution.

Tray 171 activity joint is in last surrounding frame 162 and with the upper end contact of last deckle board 161, imbibition board 181 activity joint is in tray 171, dropping cone 183 wears to establish in perforation 174 down, the upper end of pipe 172 is passed perforation 182 and is alternate fixed mounting in No. two small opening 198, the lower extreme of a branch liquid pipe 193 contacts with the upper end of tray 171, three-way pipe 199 is linked together with No. two transfer lines 35, a branch liquid pipe 193 and No. two branch liquid pipe 194 between common fixed mounting have a fagging 1941.

A first cover plate 30, a second cover plate 31 and a third cover plate 32 are respectively clamped and mounted at the right part of the front end of the lower barrel 3, the left part of the front end of the middle barrel 5 and the front end of the upper barrel 7. No. one apron 30, no. two apron 31 and No. three apron 32 all can be dismantled, convenient maintenance.

It should be noted that, the invention is a biological filter bed exhaust gas purification device, when using, inject the filtrate used for filtering the treated exhaust gas into the treatment pool 1 through the intake pipe 29 first, and make the filtrate pass the mouth of pipe of the intake pipe 29, then, inject the nutrient solution into the cavity below the net frame 12 through the first fluid infusion tube 26, the second fluid infusion tube 27 and the third fluid infusion tube 28, then, introduce the treated exhaust gas through the intake pipe 29, the exhaust gas is filtered and treated through the filtrate first, then, open the electromagnetic valve on the three air ducts 11, the electromagnetic valve on the third flow duct 22, the electromagnetism on the fourth flow duct 23 and the electromagnetic valve on the first exhaust pipe 24, make the exhaust gas pass through the air duct 11, the third flow duct 22, the air duct 11 above the left, the fourth flow duct 23 and the air duct 11 above the right, and discharge through the first exhaust pipe 24, in the exhaust gas flow process, pass through the three purification treatment devices 15, the microorganism on the packing layer 153 is purified and treated successively, the purification treatment device 15 is provided, and the purification device can greatly improve the purification performance of the exhaust gas, and the purification device can greatly meet the requirement of the purification device, and the purification device can be distributed in the high practical upper limit of the purification device; in the purification device, when the purification treatment device 15 is used, a part of the waste gas flowing in through the gas guide tube 11 flows out through the first gas distribution tube 143 and contacts with the first auxiliary diffusion cover 147 under the action of the diffusion device 14 to form a low-speed turbulent flow, a part of the waste gas contacts along the lower end of the main diffusion cover 141 and is diffused at a low speed from the edge of the main diffusion cover 141, and the rest of the waste gas flows out through the second gas distribution tube 144 and contacts with the second auxiliary diffusion cover 148 to form a low-speed turbulent flow, so that under the action of the main diffusion cover 141, the first auxiliary diffusion cover 144 and the second auxiliary diffusion cover 148, the high-speed gas flow flowing out from the gas guide tube 11 is converted into a low-speed turbulent flow which is diffused at the lower end of the biological filler layer 153 and flows into the biological filler layer 153, so that the waste gas is filtered by microorganisms of the biological filler layer 153, and the treatment effect is better; the exhaust gas after the microbial treatment is discharged through the air vent 163.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A biofilter bed exhaust gas purification device, includes treatment tank (1), its characterized in that: the upper end of the treatment tank (1) is fixedly provided with a lower partition plate (2), the upper end of the lower partition plate (2) is fixedly provided with a lower cylinder body (3), the upper end of the lower cylinder body (3) is fixedly provided with a middle partition plate (4), the upper end of the middle partition plate (4) is fixedly provided with a middle cylinder body (5), the upper end of the middle cylinder body (5) is fixedly provided with an upper partition plate (6), the right part of the upper end of the upper partition plate (6) is fixedly provided with an upper cylinder body (7), the upper end of the upper cylinder body (7) is fixedly provided with a top plate (8), the left side of the middle part of the upper end of the lower partition plate (2) is fixedly provided with a lower vertical plate (9), the right part of the upper end of the middle partition plate (4) is fixedly provided with an upper vertical plate (10), the upper vertical plate (10) is positioned at the upper right of the lower vertical plate (9), the right part of the upper end of the lower partition plate (2), the left part of the upper end of the middle partition plate (4) and the upper part of the upper partition plate (6) are fixedly provided with air ducts (11) which are inserted and fixedly provided with three air guide tubes (12) movably sleeved on the upper cylindrical surface, the upper portion of the treatment tank frame (12), the inner side of the treatment tank (14) is provided with three purification device (14), and the filter plate (14) and the purification device (14), an upper bracket (16) is arranged above the three purification treatment devices (15), the upper ends of the three upper brackets (16) are movably clamped with mounting mechanisms (17), the upper ends of the three mounting mechanisms (17) are movably clamped with adjusting devices (18), liquid supplementing devices (19) are arranged above the three adjusting devices (18), and the three liquid supplementing devices (19) are respectively contacted with the upper ends of the three mounting mechanisms (17);

the upper bracket (16) comprises an upper frame plate (161), an upper enclosure frame (162) is fixedly installed in the middle of the upper end of the upper frame plate (161), an air channel (163) is formed in the upper end of the upper frame plate (161), and four air channels (163) are arranged and distributed around the upper enclosure frame (162); the installation mechanism (17) comprises a tray (171), a lower through hole (174) is formed in the lower end of the tray (171), a guide pipe (172) is fixedly installed at the lower end of the tray (171) in a penetrating mode, the upper end of the guide pipe (172) extends to the upper portion of the tray (171), and a liquid spraying cover (173) is fixedly installed at the lower end of the guide pipe (172); the adjusting device (18) comprises a liquid suction plate (181), an upper through hole (182) is formed in the upper end of the liquid suction plate (181), a liquid dropping cone (183) is fixedly connected to the lower end of the liquid suction plate (181), and the liquid suction plate (181) and the liquid dropping cone (183) are integrally made of sponge; the liquid supplementing device (19) comprises a first connecting pipe (191) and a second connecting pipe (192), the second connecting pipe (192) is located above the first connecting pipe (191), the right end of the first connecting pipe (191) and the right end of the second connecting pipe (192) are respectively and fixedly provided with a first liquid distributing pipe (193) and a second liquid distributing pipe (194), the left end of the first connecting pipe (191) and the left end of the second connecting pipe (192) are respectively and fixedly provided with a third liquid distributing pipe (195) and a fourth liquid distributing pipe (196), a three-way pipe (199) is jointly and fixedly arranged between the third liquid distributing pipe (195) and the fourth liquid distributing pipe (196), and a first leakage hole (197) and a second leakage hole (198) are formed in the lower end of the first liquid distributing pipe (193) and the lower end of the second liquid distributing pipe (194) respectively; tray (171) activity joint enclose frame (162) in last and with the upper end contact of last deckle board (161), inhale liquid board (181) activity joint in tray (171), dropping cone (183) wear to establish under in perforation (174), the upper end of pipe (172) is passed and is perforated (182) and alternate fixed mounting in No. two weeping holes (198), the lower extreme of a liquid distribution pipe (193) contacts with the upper end of tray (171), three-way pipe (199) are linked together with No. two transfer lines (35), common fixed mounting has fagging (1941) between a liquid distribution pipe (193) and No. two liquid distribution pipes (194).

2. The biofilter bed exhaust gas purification apparatus according to claim 1, wherein: it is three purification unit (15) respectively with the inner wall of lower barrel (3), the inner wall of well barrel (5) and the inner wall fixed connection of last barrel (7), it is three installation mechanism (17) respectively with the inner wall of lower barrel (3), the inner wall of well barrel (5) and the inner wall fixed connection of last barrel (7), the right-hand member lower part of lower barrel (3), the right-hand member lower part of well barrel (5) and the right-hand member lower part of last barrel (7) alternate fixed mounting respectively and have a fluid infusion pipe (26), no. two fluid infusion pipes (27) and No. three fluid infusion pipe (28), the left end lower part of lower barrel (3), the left end lower part of well barrel (5) and the equal fixed mounting in left end lower part of last barrel (7) have circulating pump (33), it is three the equal fixed mounting of input of circulating pump (33) has an infusion pipe (34), it is three the equal fixed mounting of output of circulating pump (33) has No. two infusion pipes (35), the left end lower part of processing pond (1) alternates fixed mounting has intake pipe (29).

3. The biofilter bed exhaust gas purification apparatus according to claim 2, wherein: one ends, far away from a circulating pump (33), of three first infusion tubes (34) are respectively located below three net frames (12), one ends, far away from the circulating pump (33), of three second infusion tubes (35) are respectively connected with three liquid supplementing devices (19), a first guide pipe (20) is fixedly installed at the left part of the upper end of a lower partition plate (2) in an inserting mode, a second guide pipe (21) is fixedly installed at the right part of the upper end of a middle partition plate (4) in an inserting mode, a third guide pipe (22) is fixedly installed at the front part of the right end of a lower vertical plate (9) in an inserting mode, a fourth guide pipe (23) is fixedly installed at the right end of an upper vertical plate (10) in an inserting mode, a second exhaust pipe (25) is fixedly installed at the left part of the upper end of an upper partition plate (6) in an inserting mode, and a first exhaust pipe (24) is fixedly installed at the upper end of a top plate (8) in an inserting mode; electromagnetic valves are arranged on the air guide pipe (11), the first guide pipe (20), the second guide pipe (21), the third guide pipe (22), the fourth guide pipe (23), the first exhaust pipe (24) and the second exhaust pipe (25); no. one apron (30), no. two apron (31) and No. three apron (32) are installed to the front end right part of lower barrel (3), the front end left part of well barrel (5) and the front end of last barrel (7) joint respectively.

4. The biofilter bed exhaust gas purification apparatus according to claim 3, wherein: the device that flows scatters (14) including main scattered cover (141), the lower extreme fixed mounting of main scattered cover (141) has fore-set (142) No. one, the lower extreme of fore-set (142) and the upper end fixed connection of air duct (11), the upper end middle part of main scattered cover (141) alternates fixed mounting has gas distribution pipe (143) No. one, the upper end fixed mounting of gas distribution pipe (143) has fore-set (145) No. two, the upper end fixed mounting of fore-set (145) has vice scattered cover (147) No. one, the upper end of main scattered cover (141) alternates fixed mounting has gas distribution pipe (144) No. two, the upper end fixed mounting of gas distribution pipe (144) has fore-set (146) No. three, the upper end fixed mounting of fore-set (146) has vice scattered cover (148) No. two.

5. The biofilter bed exhaust gas purification apparatus according to claim 4, wherein: the main diffuser (141) is of a shell structure, the front view outline shape and the left view outline shape of the main diffuser (141) are both isosceles trapezoids, the first auxiliary diffuser (147) and the second auxiliary diffuser (148) are both of conical shell structures, and the second gas distribution pipe (144) is provided with a plurality of gas distribution pipes which are randomly distributed around the first gas distribution pipe (143); purification unit (15) include lower deckle board (151), enclose frame (152) down in the upper end middle part fixed mounting of deckle board (151), the upper end of deckle board (151) is provided with bio-packing layer (153), bio-packing layer (153) movable mounting encloses under in frame (152).