Black soldier fly breeding waste gas treatment device

Abstract

The present invention relates to the technical field of waste gas treatment, and in particular to a black soldier fly breeding waste gas treatment device, comprising a box body with a cavity, wherein a longitudinal partition divides an upper chamber into a left chamber, a middle chamber and a right chamber, a second transverse partition is installed in the lower chamber, and the second transverse partition divides the lower chamber into a first chamber and a second chamber; a photocatalytic filler plate is arranged in the right chamber, an ozone inlet and an air inlet are opened on the box body, and the right chamber is connected to the ozone inlet and the air inlet; filler is arranged in the middle chamber; a thermal catalytic plate is installed in the left chamber; a spray assembly is installed in the first chamber, and a heating assembly is arranged in the second chamber. The waste gas treatment method can realize an unmanned control process, does not require additional material, and the operation is fully automated. Corresponding solid fertilizer can be harvested, and the volume is small and the storage space is small.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for black soldier fly breeding. Background Art

[0002] After fermentation and separation of food waste, the remaining residue still contains protein and other nutrients. Using this residue for breeding black soldier flies is a cost-effective method. Black soldier fly larvae are a valuable source of animal protein, and the remaining residue becomes organic fertilizer. Experiments have shown that food waste, agricultural byproduct scraps, and livestock and poultry manure can provide a simple and cost-effective source of feed for large-scale black soldier fly farming.

[0003] However, the breeding process of black soldier fly larvae produces waste gases such as ammonia, hydrogen sulfide, carbon dioxide, and indoles. These exhaust gases are directly discharged into the environment and pollute the environment. Indoles, in particular, are difficult to decompose. Long-term exposure or inhalation of these gases can cause serious damage to the nervous system and hematopoietic function, and may even lead to other serious diseases.

[0004] A common treatment technology is water spraying. For example, the Chinese patent CN209865760U sets up a spray tower, but it cannot completely remove ammonia, hydrogen sulfide, carbon dioxide and indole organic gases in the tail gas because organic gases cannot be absorbed by water. In addition, ammonia is easily volatilized during the absorption process because the temperature of the exhaust gas during the breeding process is relatively high.

[0005] Chinese patent CN109126422A discloses a method for treating waste gas from black soldier fly aquaculture. This method sprays an aqueous solution of ferric chloride, magnesium sulfate, ferrous sulfate, and superphosphate to form the corresponding ammonium salts. However, in actual operation, various reagents must be prepared and a large amount of solution must be prepared. In addition, this operation is cumbersome and requires workers to regularly add materials. Moreover, this technology is not effective in treating organic waste gas. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: in order to overcome the problem in the existing technology that tail gas is directly discharged to pollute the environment, especially the problem that indole organic waste gas is not easy to decompose, and if the human body is exposed to or inhaled for a long time, it will cause serious harm to the nervous system and hematopoietic function, and even cause other serious diseases, a black soldier fly breeding waste gas treatment device is provided.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a black soldier fly breeding waste gas treatment device, comprising a box body with a cavity, a first transverse partition installed in the box body, the first transverse partition dividing the cavity into an upper chamber and a lower chamber, two longitudinal partitions spaced apart are installed in the upper chamber, the longitudinal partitions divide the upper chamber into a left chamber, a middle chamber, and a right chamber, a second transverse partition is installed in the lower chamber, the second transverse partition divides the lower chamber into a first chamber and a second chamber, and the longitudinal partition and the second transverse partition can allow fluid to pass through;

[0008] A photocatalytic filler plate is arranged in the right chamber, an ozone inlet and an air inlet are opened on the box body, and the right chamber is connected to the ozone inlet and the air inlet;

[0009] A filler is arranged in the middle chamber;

[0010] A thermal catalytic plate is installed in the left chamber, and an air outlet is opened on the box body, which is connected to the left chamber;

[0011] A spray assembly is installed in the first chamber, and the spray end of the spray assembly is located at the top of the middle chamber. The spray assembly can guide the fluid in the middle chamber into the second chamber.

[0012] A heating component is arranged in the second chamber. This exhaust gas treatment method can realize unmanned control process, without the need for additional materials, and the operation is fully automated;

[0013] Ammonia in the waste gas is partially oxidized into nitrogen oxides, which react under water spray conditions to form ammonium nitrate solution. Organic waste gas can be oxidized into carbon dioxide. Both organic and inorganic waste gases can be completely separated from the air.

[0014] The corresponding solid fertilizer can be harvested, which is small in size and requires little storage space.

[0015] The filler is further comprised of granite filler.

[0016] In order to solve the problem of how to arrange the photocatalytic filler plate, the photocatalytic filler plate further includes a plate body and a plurality of lamp tubes installed on the plate body, and the lamp tubes are ultraviolet lamp tubes.

[0017] In order to solve the problem of how to arrange the spray assembly, the spray assembly further includes a submersible pump, a spray head, a flow pipe and a barrel body. The spray head is arranged at the top of the middle chamber, the barrel body is arranged in the first chamber, the input port of the flow pipe is connected to the bottom of the middle chamber, the flow pipe passes through the bottom of the barrel body and is connected to the second chamber, the submersible pump is arranged in the barrel body, and the output end of the submersible pump is connected to the spray head through a connecting pipe, and the connecting pipe has a water inlet.

[0018] It further includes that the flow conduit is a coil.

[0019] It further comprises a material taking door arranged on the box body, and the material taking door is located on the wall surface of the second chamber.

[0020] The invention further comprises the following steps: the air inlet is arranged with two air inlets, and the two air inlets are spaced apart in an upper and lower manner;

[0021] The beneficial effects of the present invention are as follows: the present invention provides a black soldier fly breeding waste gas treatment device, the waste gas treatment method can realize an unmanned control process, no additional materials are required, and the operation is fully automated;

[0022] Ammonia in the waste gas is partially oxidized into nitrogen oxides, which react under water spray conditions to form ammonium nitrate solution. Organic waste gas can be oxidized into carbon dioxide. Both organic and inorganic waste gases can be completely separated from the air.

[0023] The corresponding solid fertilizer can be harvested, which is small in size and requires little storage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and examples.

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] In the figure: 1, box body, 11, first transverse partition, 12, longitudinal partition, 13, second transverse partition, 14, left chamber, 141, air outlet, 15, middle chamber, 16, right chamber, 161, ozone inlet, 162, air inlet, 17, first chamber, 18, second chamber, 181, reclaiming door,

[0027] 2. Photocatalytic filler plate, 21. Plate body, 22. Lamp tube, 3. Filler, 4. Thermal catalytic plate, 5. Spray assembly, 51. Submersible pump, 52. Spray head, 53. Flow pipe, 54. Barrel body, 55. Connecting pipe, 551. Water inlet, 6. Heating assembly. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.

[0029] like Figure 1It is a structural schematic diagram of the present invention, a black soldier fly breeding waste gas treatment device, comprising a box body 1 with a cavity, a first transverse partition 11 is installed in the box body 1, the first transverse partition 11 divides the cavity into an upper chamber and a lower chamber, two spaced longitudinal partitions 12 are installed in the upper chamber, the longitudinal partition 12 divides the upper chamber into a left chamber 14, a middle chamber 15 and a right chamber 16, a second transverse partition 13 is installed in the lower chamber, the second transverse partition 13 divides the lower chamber into a first chamber 17 and a second chamber 18, the longitudinal partition 12 and the second transverse partition 13 can allow fluid to pass through, the upper part of the longitudinal partition 12 on the left side has a through hole for gas to pass through, and the lower part of the partition 12 on the right side has a through hole for gas to pass through. The staggered arrangement can increase the gas stroke and ensure the spraying effect. The second transverse partition 13 is a sieve plate or a plate with mesh, and the first transverse partition 11 has a through hole for connecting the middle chamber 15 and the first chamber 17.

[0030] A photocatalytic filler plate 2 is arranged in the right chamber 16. An ozone inlet 161 and an air inlet 162 are opened on the box body 1. The right chamber 16 is connected to the ozone inlet 161 and the air inlet 162. The photocatalytic filler plate 2 includes a plate body 21 and a plurality of lamps 22 mounted on the plate body 21. The lamps 22 are ultraviolet lamps. The plate body 21 has through holes for allowing gas to pass freely.

[0031] The middle chamber 15 is provided with a filler 3, which is a granite filler;

[0032] A thermal catalytic plate 4 is installed in the left chamber 14. An air outlet 141 is provided on the housing 1. The air outlet 141 is connected to the left chamber 14. The thermal catalytic plate 4 is made of titanium and is loaded with manganese dioxide on its surface. A heating wire is provided on the surface of each plate. When powered on, the temperature is maintained at 40-60°C. The thermal catalytic plate 4 has gaps for gas to pass through.

[0033] A spray assembly 5 is installed in the first chamber 17. The spray end of the spray assembly 5 is located at the top of the intermediate chamber 15. The spray assembly 5 can guide the fluid in the intermediate chamber 15 to the second chamber 18. The spray assembly 5 includes a submersible pump 51, a spray head 52, a flow pipe 53 and a barrel 54. The submersible pump 51 is used to extract the liquid in the barrel 54. The barrel 54 is used to receive the water cooled after evaporation in the second chamber 18. The flow pipe 53 plays the role of transmitting liquid on the one hand and can serve as a cooling pipe on the other hand to provide cooling for the water vapor. The spray head 52 is arranged at the top of the intermediate chamber 15, and the barrel 54 is arranged in the first chamber 1 7, the input port of the flow pipe 53 is connected to the bottom of the intermediate chamber 15, the flow pipe 53 passes through the bottom of the barrel body 54 and is connected to the second chamber 18, the submersible pump 51 is arranged in the barrel body 54, and the output end of the submersible pump 51 is connected to the spray head 52 through the connecting pipe 55, and the connecting pipe 55 has a water inlet 551. The flow pipe 53 is a coil or a serpentine pipe, which increases the liquid stroke and provides a cooling effect. The cold air is used to cool the spray water. The cooled spray water cools the evaporated liquid in the coil and heats the water in the coil. The water in the coil is then evaporated and condensed in the cone barrel to form a whole heat cycle and ammonium nitrate concentration process, which has low energy consumption.

[0034] The final thermal catalytic process can heat the air, making the treated gas suitable for reuse in the breeding of black soldier flies, as a certain temperature must be maintained for the breeding of black soldier flies.

[0035] A heating component 6 is arranged in the second chamber 18. The heating component 6 can be a heating wire, a heater or other heating equipment, which is not specifically limited in this application.

[0036] A material taking door 181 is arranged on the box body 1 and is located on the wall surface of the second chamber 18 .

[0037] This waste gas treatment method can realize an unmanned control process, does not require additional materials, and is fully automated. The ammonia in the waste gas is partially oxidized into nitrogen oxide, which reacts under water spray conditions to form an ammonium nitrate solution. The organic waste gas can be oxidized into carbon dioxide. Both organic and inorganic waste gases can be completely separated from the air. The corresponding solid fertilizer can be harvested, which is small in size and requires little storage space.

[0038] During operation, tap water is sprayed into the shower head 52 through the water inlet 551, the power supply of the lamp tube 22 of the photocatalytic filler plate 2 and the heating wire of the thermal catalytic plate 4 is turned on, and ozone is introduced from the ozone inlet 161;

[0039] The aquaculture waste gas is extracted and introduced into the device from the upper and lower air inlets 162. Under light, the catalyst catalyzes the ozone oxidation reaction and oxidizes part of the ammonia into nitrogen oxides (including nitric oxide and nitrogen dioxide). There are two upper and lower air inlets 162, and the two air inlets 162 are arranged at intervals. The air inlet 162 at the bottom is to shorten the reaction time and retain part of the ammonia. Then the gas enters the granite particle filler and is sprayed with water. The ammonia and nitrogen oxide react here to generate ammonium nitrate. The water passing through the filler passes through the intermediate chamber 15 and enters the flow pipe 53. The flow The water enters the bottom of the second chamber 18, is heated and evaporated by the heating component 6, and evaporates through the second transverse partition 13 to enter the barrel body 54. The water vapor is cooled by the flow pipe 53 and liquefied into water again. After the submersible pump 51 is started, the condensed water can be sent back to the spray head 52 and sprayed down. As the evaporated water at the bottom increases, the concentration of ammonium nitrate at the bottom becomes higher and higher, and crystals are produced, which can be discharged from the material taking door 181. The gas coming out of the filler 3 enters the leftmost area. In this area, the gas continues to undergo thermal catalytic reaction, which can completely oxidize the organic waste gas and oxidize it into carbon dioxide. The pollutants in the tail gas can be completely removed.

[0040] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A black soldier fly breeding waste gas treatment device, characterized in that: The invention comprises a box body (1) having a cavity, wherein a first transverse partition (11) is installed in the box body (1), wherein the first transverse partition (11) divides the cavity into an upper chamber and a lower chamber, wherein two longitudinal partitions (12) are installed in the upper chamber, wherein the longitudinal partitions (12) divide the upper chamber into a left chamber (14), a middle chamber (15) and a right chamber (16), and wherein a second transverse partition (13) is installed in the lower chamber, wherein the second transverse partition (13) divides the lower chamber into a first chamber (17) and a second chamber (18), wherein the longitudinal partition (12) and the second transverse partition (13) are capable of allowing fluid to pass through; A photocatalytic filler plate (2) is arranged in the right chamber (16); an ozone inlet (161) and an air inlet (162) are provided on the box body (1); and the right chamber (16) is connected to the ozone inlet (161) and the air inlet (162); A filler (3) is arranged in the intermediate chamber (15); A thermal catalytic plate (4) is installed in the left chamber (14), and an air outlet (141) is provided on the box body (1), and the air outlet (141) is communicated with the left chamber (14); A spray assembly (5) is installed in the first chamber (17), and the spray end of the spray assembly (5) is located at the top of the middle chamber (15). The spray assembly (5) can guide the fluid in the middle chamber (15) into the second chamber (18). A heating component (6) is arranged in the second chamber (18).

2. The black soldier fly breeding waste gas treatment device according to claim 1, characterized in that: The filler (3) is a granite filler.

3. The black soldier fly breeding waste gas treatment device according to claim 1, characterized in that: The photocatalytic filler plate (2) comprises a plate body (21) and a plurality of lamp tubes (22) mounted on the plate body (21), wherein the lamp tubes (22) are ultraviolet lamp tubes.

4. The black soldier fly breeding waste gas treatment device according to claim 1, characterized in that: The spray assembly (5) comprises a submersible pump (51), a spray head (52), a flow pipe (53) and a barrel (54); the spray head (52) is arranged at the top of the intermediate chamber (15); the barrel (54) is arranged in the first chamber (17); the input port of the flow pipe (53) is connected to the bottom of the intermediate chamber (15); the flow pipe (53) passes through the bottom of the barrel (54) and is connected to the second chamber (18); the submersible pump (51) is arranged in the barrel (54); the output end of the submersible pump (51) is connected to the spray head (52) via a connecting pipe (55); and the connecting pipe (55) has a water inlet (551).

5. The black soldier fly breeding waste gas treatment device according to claim 4, characterized in that: The flow pipe (53) is a coiled pipe or a serpentine pipe.

6. The black soldier fly breeding waste gas treatment device according to claim 1, characterized in that: A material taking door (181) is arranged on the box body (1), and the material taking door (181) is located on the wall surface of the second chamber (18).

7. The black soldier fly breeding waste gas treatment device according to claim 1, characterized in that: There are two air inlets (162), and the two air inlets (162) are spaced apart and distributed vertically.

Images