CN108815982A - A kind of fish powder waste gases processing unit - Google Patents

Abstract

The invention provides a fishmeal waste gas treatment device, which belongs to the technical field of environmental protection equipment. The fishmeal waste gas treatment device includes a housing with a rectangular cross-section. One end of the housing is provided with an air inlet pipe, and the other end is provided with an air outlet pipe. Several groups of oxidation units are arranged in sequence from the air inlet pipe to the air outlet pipe inside the housing. One and one group of oxidation unit two, the group oxidation unit one includes a titanium dioxide plate module and an ultraviolet lamp module, the titanium dioxide plate module includes four titanium dioxide plates, and the four titanium dioxide plates are detachably arranged on the four inner walls of the housing, and the ultraviolet lamp module It includes a fixed frame and an ultraviolet lamp. Several ultraviolet lamps are arranged in the fixed frame. The oxidation unit 2 includes a fixed frame and a titanium dioxide net. The fixed frame is provided with a titanium dioxide net. The outer wall of the housing is provided with an ozone generator. The ozone output port communicates with the inside of the housing through the ozone delivery pipe, and a check valve is arranged on the ozone delivery pipe. The invention has the advantage of good waste gas treatment effect.

Description

A fishmeal waste gas treatment device

technical field

The invention belongs to the technical field of environmental protection equipment and relates to a fish meal waste gas treatment device.

Background technique

Fishmeal is an important component in feed. Fishmeal is made from the leftovers of aquatic products and some small fish and shrimps, through high-temperature steam cooking, pressing, drying, crushing and other processes. The production of fishmeal will produce malodorous gas, which will cause serious air pollution. The malodorous gas produced during fishmeal processing has complex chemical components, including a large amount of organic and inorganic substances. If the waste gas produced in the production process of fishmeal is directly discharged into the external environment, it will definitely pollute the environment.

However, the equipment currently used to treat the waste gas produced in the production of fishmeal has a poor degradation effect on the waste gas and cannot meet the current environmental protection requirements.

Contents of the invention

The purpose of the present invention is to propose a fishmeal waste gas treatment device for the problems mentioned above in the prior art. The fishmeal waste gas treatment device has a good degradation effect on the waste gas produced in the fishmeal production, and improves the treatment effect of the waste gas.

The purpose of the present invention can be achieved through the following technical solutions: a fishmeal exhaust gas treatment device, comprising a housing with a rectangular cross section, several fixing seats are arranged on the lower side of the outer wall of the housing, one end of the housing An air intake pipe is provided, and an air outlet pipe is provided at the other end. Several groups of oxidation units one and one group of oxidation units two are sequentially arranged inside the housing from the air intake pipe to the outlet pipe. The group of oxidation units one includes a titanium dioxide plate module and an ultraviolet lamp module, the titanium dioxide plate module includes four titanium dioxide plates, and the four titanium dioxide plates are detachably arranged on the four inner side walls of the housing through brackets, and the ultraviolet lamp module includes a fixed frame and an ultraviolet lamp , the fixed frame has a rectangular shape and is fixed on the inner wall of the housing, several ultraviolet lamps are arranged in the fixed frame, the oxidation unit 2 includes a fixed frame and a titanium dioxide net, the fixed frame is rectangular and fixed on the shell On the inner wall of the body, a titanium dioxide mesh is arranged in the fixed frame, an ozone generator is arranged on the outer wall of the housing, and the ozone output port of the ozone generator communicates with the inside of the housing through an ozone delivery pipe. The ozone delivery pipe is provided with a one-way valve three.

In the above-mentioned fishmeal waste gas treatment device, a deflector is provided on the inner wall of the housing, and an arc-shaped part is arranged on the upper part of the deflector, and the arc-shaped part is located directly below the outlet of the ozone delivery pipe. Preferably, several guide holes are arranged on the guide plate.

In the above-mentioned fish meal waste gas treatment device, a waste water tank is provided under the outer wall of the housing, and the waste water tank communicates with the lower side wall inside the housing through a drain pipe, and a spray pipe is provided in the housing, The spray pipe is located between the titanium dioxide net and the air outlet pipe, and several nozzles are arranged on the spray pipe along the axial direction, the outlet of the nozzle is directly opposite to the titanium dioxide net, and a water tank is arranged above the outer wall of the housing. The water tank is provided with a water pump, the inlet of the water pump communicates with the bottom of the water tank through a pipeline, the outlet of the water pump communicates with one end of the spray pipe, and the other end of the spray pipe is sealed.

In the above-mentioned fishmeal waste gas treatment device, a stirring fan is also provided in the housing through a bracket.

In the above-mentioned fishmeal waste gas treatment device, a mirror-faced aluminum sheet is arranged between two adjacent sides inside the housing, the cross-section of the mirror-faced aluminum sheet is arc-shaped, and the mirror-faced aluminum sheet and the housing The detachable connection between the inner walls of the body.

In the above-mentioned fishmeal waste gas treatment device, the lower side of the outer wall of the housing is also provided with a circulating fan, a collecting pipe and an air pipe, and several suction pipes are arranged inside the housing between the titanium dioxide net and the air outlet pipe. , the suction pipes are all connected with the collecting pipe, the air inlet of the circulating fan is connected with the collecting pipe through the air inlet pipe, and the air outlet of the circulating fan is connected with the inside of the housing through the air pipe, and the air pipe is in the One end inside the housing is located below the outlet of the ozone delivery pipe and behind the deflector.

In the above-mentioned fishmeal waste gas treatment device, the first check valve and the second check valve are respectively arranged on the air inlet pipe and the air outlet pipe.

In the above-mentioned fishmeal waste gas treatment device, a non-return plate is hinged at the end of one end of the air intake pipe inside the casing.

In the above-mentioned fishmeal waste gas treatment device, a pressure sensor is arranged on the inner wall of the outlet pipe, a controller is arranged on the outer wall of the housing, the one-way valve one and the two one-way valve are electromagnetic valves, The controller is electrically connected to the first check valve and the second check valve respectively.

Compared with the prior art, the invention has a good degradation effect on the waste gas produced in fishmeal production, and has a good treatment effect on the waste gas.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a cross-sectional view at A-A in Fig. 1 .

Fig. 3 is a cross-sectional view at B-B in Fig. 1 .

Fig. 4 is a cross-sectional view at C-C in Fig. 1 .

In the figure: 1, shell; 1a, waste water tank; 1b, drain pipe; 1c, water pump; 1d, drain pipe; 1e, nozzle; 1f, water tank; 2, air intake pipe; 3, air outlet pipe; 4, non-return plate ;5, one-way valve one; 6, one-way valve two; 7, fixed seat; 8, guide plate; 8a, guide hole; 9, circulation fan; Tube; 9d, suction pipe; 10, ozone generator; 11, ozone delivery pipe; 12, one-way valve three; 13, titanium dioxide plate; 14, fixed frame; 15, ultraviolet lamp; 16, titanium dioxide net; 16a, fixed Frame; 17. Mirror aluminum sheet; 18. Stirring fan; 19. Bracket; 20. Pressure sensor; 21. Controller.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Figures 1 to 4, a fishmeal exhaust gas treatment device includes a housing 1 with a rectangular cross-section, a plurality of fixing seats 7 are arranged on the lower side of the outer wall of the housing 1, and one end of the housing 1 An air inlet pipe 2 is provided, and an air outlet pipe 3 is arranged at the other end. Several groups of oxidation units one and one group of oxidation units two are sequentially arranged in the interior of the housing 1 from the air inlet pipe 2 to the air outlet pipe 3. Unit one includes a titanium dioxide plate module and an ultraviolet lamp module. The titanium dioxide plate module includes four titanium dioxide plates 13, and the four titanium dioxide plates 13 are respectively detachably arranged on the four inner walls of the housing 1 through brackets. The ultraviolet light The lamp module includes a fixed frame 14 and an ultraviolet lamp 15. The fixed frame 14 is rectangular and fixed on the inner wall of the housing 1. Several ultraviolet lamps 15 are arranged in the fixed frame 14. The oxidation unit 2 includes a fixed frame 16a and a titanium dioxide mesh 16, the fixed frame 16a is rectangular and fixed on the inner wall of the housing 1, the titanium dioxide mesh 16 is arranged in the fixed frame 16a, and the ozone generator 10 is arranged on the outer wall of the casing 1, The ozone output port of the ozone generator 10 communicates with the inside of the housing 1 through an ozone delivery pipe 11 , and a check valve 12 is arranged on the ozone delivery pipe 11 .

Exhaust gases from fishmeal processing contain many organic and inorganic pollutants.

When the titanium dioxide in the titanium dioxide mesh 16 and the titanium dioxide plate 13 is irradiated by light (ultraviolet light) with a wavelength less than or equal to 387.5nm, the photogenerated electrons (e-) and photogenerated holes (h+) on the surface of the titanium dioxide are easily dissolved in water. Oxygen and other oxidizing substances are captured, while the hole h+ can oxidize the organic matter adsorbed on the surface of titanium dioxide or first convert the OH- and H2O molecular oxygen adsorbed on the surface of titanium dioxide into OH free radicals. The oxidation ability of OH free radicals exists in water It is the strongest among the oxidants, which can oxidize most of the organic matter and inorganic pollutants in water, and mineralize them into small inorganic molecules, CO2 and H2O, etc.

Ozone also has strong oxidizing properties and can oxidize organic matter, and ozone can efficiently promote the generation of OH radicals in photocatalytic reactions, thereby enhancing reaction efficiency.

The exhaust gas enters the housing 1 from the intake pipe 2 and mixes with the ozone delivered to the housing 1 by the ozone generator 10. The exhaust gas is oxidized and degraded by the ozone, and then the exhaust gas is transported to the titanium dioxide plate module and the ultraviolet lamp module for further oxidation Degradation finally passes through the titanium dioxide net 16, so that the exhaust gas and energy can fully contact with the titanium dioxide material to improve the oxidation and degradation effect.

The titanium dioxide plate 13 is a titanium dioxide plate 13 with nano-pillars on the surface produced by the electrochemical oxidation method, which can greatly increase the surface area and increase the contact probability between the exhaust gas and the titanium dioxide plate 13 .

Specifically, a deflector 8 is arranged on the inner wall of the housing 1 , and an arc-shaped portion is arranged on the upper part of the deflector 8 , and the arc-shaped portion is located directly below the outlet of the ozone delivery pipe 11 . Specifically, the deflector plate 8 is provided with several deflector holes 8a.

The deflector 8 guides the exhaust gas to be treated entering from the intake pipe 2, so that the exhaust gas to be treated is guided to the outlet of the ozone delivery pipe 11, so that the exhaust gas to be treated can fully contact with ozone to improve the organic pollution in the exhaust gas Oxidative degradation efficiency of pollutants and inorganic pollutants;

The guide hole 8a can reduce the impact force received by the guide plate 8 and improve the working stability of the fishmeal waste gas treatment device.

Specifically, a waste water tank 1a is arranged under the outer wall of the housing 1, and the waste water tank 1a communicates with the lower side wall inside the housing 1 through a drain pipe 1b, and a spray pipe 1d is arranged in the housing 1 , the spray pipe 1d is located between the titanium dioxide mesh 16 and the outlet pipe 3 and several nozzles 1e are arranged on the spray pipe 1d along the axial direction, the outlet of the nozzle 1e is facing the titanium dioxide mesh 16, and the shell A water tank 1f is arranged above the outer wall of the body 1, and a water pump 1c is arranged on the water tank 1f. The inlet of the water pump 1c communicates with the bottom of the water tank 1f through a pipeline, and the outlet of the water pump 1c communicates with one end of the spray pipe 1d. , the other end of the spray pipe 1d is closed.

Specifically, the casing 1 is also provided with a stirring fan 18 via a bracket 19 . Stirring fan 18 can fully mix and oxidize ozone and exhaust gas, and combined with titanium dioxide plate 13 and titanium dioxide mesh 16 under the irradiation of ultraviolet lamps, it can further fully oxidize and degrade organic pollutants and inorganic pollutants in exhaust gas, and improve the treatment effect of exhaust gas .

The water pump 1c can spray the water in the water tank 1f onto the titanium dioxide mesh 16 through the nozzle 1e to clean the titanium dioxide mesh 16 and improve the oxidation efficiency of the titanium dioxide mesh 16 under the irradiation of ultraviolet light. On the lower side of the housing 1, it is discharged into the waste water tank 1a through the drain pipe 1b, and the waste water in the waste water tank 1a can be purified by another water purification system without polluting the environment.

Specifically, a mirror aluminum sheet 17 is arranged between two adjacent sides inside the housing 1 , the cross section of the mirror aluminum sheet 17 is arc-shaped, and the mirror aluminum sheet 17 and the housing 1 The detachable connection between the inner walls.

The mirror surface aluminum sheet 17 can reflect the ultraviolet light emitted by the ultraviolet lamp 15, and these ultraviolet rays can be reflected on the mirror surface aluminum sheet 17 again to improve the utilization rate of the ultraviolet lamp 15 and save energy. In addition, the titanium dioxide plate 13 and titanium dioxide The area of the net 16 irradiated by ultraviolet light, that is, under the action of the mirror aluminum sheet 17, the side of the titanium oxide plate 13 close to the inner wall of the housing 1 can have more area to be irradiated by the ultraviolet light emitted by the ultraviolet lamp 15, thereby Improve the efficiency of waste gas treatment.

Specifically, the lower side of the outer wall of the housing 1 is also provided with a circulating fan 9, a collecting pipe 9c and an air delivery pipe 9a, and the inside of the housing 1 is provided with several air suction pipes between the titanium dioxide mesh 16 and the air outlet pipe 3. Pipe 9d, the suction pipe 9d is all communicated with the collecting pipe 9c, the air inlet of the circulating fan 9 is communicated with the collecting pipe 9c through the air inlet pipe 9b, and the air outlet of the circulating fan 9 is connected through the air delivery pipe 9a and the housing 1, and one end of the air delivery pipe 9a inside the casing 1 is located below the outlet of the ozone delivery pipe 11 and behind the deflector 8.

Circulation fan 9 can transport the treated waste gas to the outlet of ozone delivery pipe 11 again, so that the treated waste gas can be fully combined with ozone again, and fully oxidized and degraded under the action of ultraviolet lamp 15 and titanium dioxide plate 13 to improve The treatment effect of exhaust gas.

Specifically, the inlet pipe 2 and the outlet pipe 3 are respectively provided with a one-way valve 5 and a one-way valve 2 6 .

One-way valve one 5 only allows waste gas to enter the inside of the housing 1 through the intake pipe 2 , and one-way valve two 6 only allows the exhaust gas processed by the structure to be discharged from the housing 1 through the outlet pipe 3 .

The setting of one-way valve 5 and one-way valve 6 can realize the orderly flow of exhaust gas, that is, it enters from the inlet pipe 2 and then degrades in the housing 1, and finally discharges from the outlet pipe 3, improving the treatment effect and efficiency of exhaust gas.

Specifically, a non-return plate 4 is hinged at one end of the intake pipe 2 located inside the housing 1 .

The area of the above-mentioned non-return plate 4 is larger than the area of the end portion of the end of the intake pipe 2 located inside the housing 1, and under the action of gravity, the non-return plate 4 covers the end portion of the end of the intake pipe 2 located inside the housing 1, It can further prevent the exhaust gas transported into the casing 1 through the intake pipe 2 from flowing back into the intake pipe 2, thereby improving the treatment effect and efficiency of the exhaust gas.

Specifically, the inner wall of the outlet pipe 3 is provided with a pressure sensor 20, the outer wall of the housing 1 is provided with a controller 21, the one-way valve 5 and the two-way valve 6 are electromagnetic valves, The controller 21 is electrically connected to the first check valve 5 and the second check valve 6 respectively.

The pressure sensor 20 can monitor the pressure in the air outlet pipe 3 in real time, and the controller 21 can control the opening and closing of the one-way valve 5 and the two-way valve 6 through the signal of the pressure sensor 20, so as to control the pressure in the housing 1 at the design level. within range.

When the pressure in the housing 1 is too high, the controller 21 can control the one-way valve 5 to reduce the opening range or close, so as to reduce the amount of exhaust gas entering the housing 1 through the intake pipe 2, and the controller 21 can control Check valve 2 6 increases opening range, increases the waste gas discharge volume of air outlet pipe 3.

When the pressure in the housing 1 is too small, the controller 21 can control the one-way valve to increase the opening range to increase the amount of exhaust gas entering the housing 1 through the intake pipe 2, and the controller 21 can control the one-way valve Two 6 reduce the opening range, thereby reducing the exhaust gas discharge of the air outlet pipe 3.

Those skilled in the art to which the present invention pertains may make various modifications, supplements or substitute similar methods to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined in the appended claims.

Claims (9)

1. A fishmeal waste gas treatment device, comprising a rectangular housing (1) in cross section, several fixing seats (7) are arranged on the lower side of the outer wall of the housing (1), the housing (1) One end of one end is provided with an air intake pipe (2), and the other end is provided with an air outlet pipe (3). It is characterized in that, the interior of the housing (1) is sequentially provided with Several groups of oxidation units one and one group of oxidation units two, the group oxidation unit one includes a titanium dioxide plate module and an ultraviolet lamp module, the titanium dioxide plate module includes four titanium dioxide plates (13), and the four titanium dioxide plates (13) They are detachably arranged on the four inner walls of the casing (1) respectively through brackets, and the ultraviolet lamp module includes a fixed frame (14) and an ultraviolet lamp (15), and the fixed frame (14) is rectangular and fixed on the casing On the inner wall of the body (1), several ultraviolet lamps (15) are arranged in the fixed frame (14), and the oxidation unit two includes a fixed frame (16a) and a titanium dioxide net (16), and the fixed frame (16a ) presents a rectangle and is fixed on the inner wall of the casing (1), the titanium dioxide mesh (16) is arranged in the fixed frame (16a), and the ozone generator (10) is arranged on the outer wall of the casing (1), The ozone output port of the ozone generator (10) communicates with the inside of the housing (1) through the ozone delivery pipe (11), and the ozone delivery pipe (11) is provided with a one-way valve three (12). 2. A kind of fishmeal exhaust gas treatment device according to claim 1, characterized in that, a deflector (8) is arranged on the inner wall of the housing (1), and the upper part of the deflector (8) is arranged There is an arc, which is located directly below the outlet of the ozone delivery pipe (11). 3. A kind of fishmeal waste gas treatment device according to claim 2, characterized in that, a waste water tank (1a) is arranged below the outer wall of the housing (1), and the waste water tank (1a) passes through a drainpipe (1b) ) communicates with the lower side wall inside the housing (1), the housing (1) is provided with a shower pipe (1d), and the shower pipe (1d) is located between the titanium dioxide mesh (16) and the air outlet pipe (3 ) and on the spray pipe (1d) along the axial direction are provided with several nozzles (1e), the outlet of the nozzles (1e) is facing the titanium dioxide mesh (16), the outer wall of the housing (1) A water tank (1d) is arranged above, and a water pump (1c) is arranged on the water tank (1f). The inlet of the water pump (1c) communicates with the bottom of the water tank (1d) through a pipeline, and the outlet of the water pump (1c) It communicates with one end of the spray pipe (1d), and the other end of the spray pipe (1d) is closed. 4. A fish meal waste gas treatment device according to claim 3, characterized in that, a stirring fan (18) is also provided in the housing (1) through a bracket (19). 5. A fishmeal waste gas treatment device according to claim 1 or 2 or 3 or 4, characterized in that mirror aluminum sheets (17) are arranged between two adjacent sides inside the housing (1) ), the cross-section of the mirror aluminum sheet (17) is arc-shaped, and the mirror aluminum sheet (17) is detachably connected to the inner wall of the housing (1). 6. A fish meal waste gas treatment device according to claim 5, characterized in that, the lower side of the outer wall of the housing (1) is also provided with a circulating fan (9), a collecting pipe (9c) and an air delivery pipe (9a ), the inside of the housing (1) is provided with several suction pipes (9d) between the titanium dioxide mesh (16) and the air outlet pipe (3), and the suction pipes (9d) are all connected to the collection pipe (9c) The air inlet of the circulating fan (9) communicates with the collecting pipe (9c) through the air inlet pipe (9b), and the air outlet of the circulating fan (9) passes through the air delivery pipe (9a) and the casing (1) Internal communication, one end of the air delivery pipe (9a) inside the casing (1) is located below the outlet of the ozone delivery pipe (11) and behind the deflector (8). 7. A kind of fishmeal waste gas processing device according to claim 6, is characterized in that, said air intake pipe (2) and air outlet pipe (3) are respectively provided with check valve one (5) and check valve two ( 6). 8 . A fishmeal waste gas treatment device according to claim 7 , characterized in that, the end of one end of the air intake pipe ( 2 ) located inside the casing ( 1 ) is hinged with a non-return plate ( 4 ). 9. A kind of fishmeal exhaust gas treatment device according to claim 7, characterized in that a pressure sensor (20) is arranged on the inner wall of the outlet pipe (3), and a pressure sensor (20) is arranged on the outer wall of the housing (1). Controller (21), described one-way valve one (5) and one-way valve two (6) are electromagnetic valves, and described controller (21) and one-way valve one (5), one-way valve two ( 6) Electrical connection.