Modified asphalt canned waste gas recovery device

Abstract

The utility model discloses a modified asphalt canning waste gas recovery device which comprises a spraying box, and a gas inlet pipe opening is formed in one end of the spraying box; the dust removal box, the heating box, the first combustion box and the second combustion box are sequentially connected through pipelines; the spraying box and the dust removal box are connected with an air suction device; a condensation box is connected between the dust removal box and the heating box; the gas outlet end of the first combustion box is connected with a second combustion box through a circulation pipeline; the circulating pipeline is connected with waste gas detection equipment; an air outlet pipe opening is formed in one end of the second combustion box. The heating box, the combustion box and the catalytic bed are matched, so that the ignition point of the asphalt waste gas is reduced, meanwhile, the asphalt waste gas with the same concentration can be output, the fuel consumption is reduced, the treatment efficiency of the asphalt waste gas is improved, and the asphalt waste gas is prevented from being directly discharged due to insufficient combustion through detection of detection equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas recovery, in particular to a modified asphalt canned waste gas recovery device. Background Art

[0002] A large amount of malodorous waste gas is generated during the production and processing of asphalt. The asphalt waste gas contains a large amount of carbon particles, ether, hydrogen cyanide, sulfur dioxide and other components. Among them, benzopyrene is the most toxic and strong carcinogen among polycyclic aromatic hydrocarbons. It is combined with aerosols formed by various types of particles in the atmosphere. Among the inhalable dust particles below eight microns, the rate of direct inhalation into the lungs is relatively high. It is inhaled into the lungs through the respiratory tract, enters the alveoli and even the blood, causing lung cancer and cardiovascular diseases. Asphalt waste gas is mostly treated by direct combustion. The generated asphalt fume is sprayed into the heat storage chamber for production heating at a predetermined flow rate and a controllable proportion, and the asphalt fume is mixed with fuel and burned at high temperature, thereby burning the pollutants in the asphalt waste gas, making full use of the combustible components in the asphalt fume, and only producing carbon dioxide after treatment.

[0003] However, during the production process, the concentration of asphalt waste gas is different at different times, so the mixing ratio is difficult to control, resulting in incomplete combustion of asphalt waste gas. At the same time, during the collection, transportation and smoke elimination process of asphalt fume, it is very easy to adhere to the surface of pipelines and equipment to form liquid to solid asphalt. The solidified asphalt is difficult to remove, often causing pipeline blockage, equipment damage, and system failure to operate normally. Utility Model Content

[0004] The utility model aims to solve the problem that asphalt waste gas is difficult to recover and treat in the prior art, and proposes a modified asphalt tank waste gas recovery device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A modified asphalt tank waste gas recovery device comprises a spray box, one end of the spray box is provided with an air inlet pipe; the dust removal box, the heating box and the first combustion box and the second combustion box are connected in sequence through pipelines; the spray box and the dust removal box are connected with an air suction device; the dust removal box and the heating box are connected with a condensation box; the air outlet end of the heating box is connected to the first combustion box through a circulation pipe; the circulation pipe is connected with an exhaust gas detection device; and one end of the second combustion box is provided with an air outlet pipe.

[0007] Preferably, a water tank is provided in the spray box; a nozzle is provided at the upper end of the spray box; a pump head is provided in the water tank; and the pump head is connected to the nozzle through a water pipe.

[0008] Preferably, the nozzle and pump head are both high temperature resistant devices.

[0009] Preferably, a dust removal water layer is installed in the dust removal box; an air inlet pipe and an air outlet pipe are connected to the dust removal box; the lower end of the air inlet pipe is arranged in the dust removal water layer; and the upper end of the air inlet pipe is communicated with the inside of the spray box.

[0010] Preferably, the air suction device includes a blower; the output end of the blower is communicated with an air inlet pipe; the input end of the blower is communicated with a spray box; and a filter layer is also provided in the connecting pipe between the blower and the spray box.

[0011] Preferably, a heating pipe is connected to the lower end of the heating box; the heating pipe extends to the lower ends of the spray box and the dust removal box.

[0012] Preferably, a catalytic bed is provided inside the first combustion box and the second combustion box.

[0013] Preferably, the outside of the pipeline is connected with an insulation layer.

[0014] Compared with the prior art, the utility model provides a modified asphalt canned waste gas recovery device, which has the following beneficial effects:

[0015] 1. The modified asphalt canned waste gas recovery device reduces the ignition point of asphalt waste gas through the cooperation of heating box, combustion box and catalytic bed, and can output asphalt waste gas of the same concentration at the same time, reducing fuel consumption and improving the treatment efficiency of asphalt waste gas. It can also avoid direct emission of asphalt waste gas due to incomplete combustion after detection by detection equipment.

[0016] 2. The modified asphalt canned waste gas recovery device removes carbon particles in the asphalt waste gas through a spray box, and then removes dust through a dust removal box to remove impurities in the asphalt waste gas, providing convenience for subsequent combustion, and then removes quality through two combustions in the combustion box, so that the gas generated after combustion can be directly discharged.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0020] In the figure: 1 spray box, 11 air inlet, 12 water tank, 13 nozzle, 14 pump head, 2 dust removal box, 21 dust removal water layer, 22 air inlet pipe, 23 air outlet pipe, 3 condensation box, 4 heating box, 41, heating pipe, 5 first combustion box, 51 air outlet, 6 second combustion box, 7 exhaust gas detection equipment, 81 blower, 82 filter layer, 9 catalyst bed. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Reference Figure 1-2 A modified asphalt tank waste gas recovery device comprises a spray box 1, one end of which is provided with an air inlet port 11; the dust removal box 2, the heating box 4, the first combustion box 5 and the second combustion box 6 are connected in sequence through pipelines; the outer sides of the pipelines are connected with a heat preservation layer to prevent the asphalt waste gas from clogging the pipeline after cooling during the pipeline transportation process, making it difficult to clean. The spray box 1 and the dust removal box 2 are connected with an air suction device; the air suction device comprises a blower 81; the output end of the blower 81 is communicated with the air inlet pipe 22; the input end of the blower 81 is communicated with the spray box 1; a filter layer 82 is also provided in the connecting pipeline between the blower 81 and the spray box 1.

[0024] A condensation box 3 is connected between the dust removal box 2 and the heating box 4; the gas outlet end of the heating box 4 is connected to the first combustion box 5 through a circulation pipeline; the circulation pipeline is connected to an exhaust gas detection device 7, which detects the gas after the combustion treatment of the first combustion box 4 to avoid incomplete combustion and direct discharge of asphalt waste gas; an exhaust pipe port 51 is provided at one end of the second combustion box 6. Catalytic beds 9 are provided inside the first combustion box 5 and the second combustion box 6.

[0025] A water tank 12 is provided in the spray box 1; a nozzle 13 is provided at the upper end of the spray box 1; a pump head 14 is provided in the water tank 12; the pump head 14 is connected to the nozzle 13 through a water pipe; the nozzle 13 and the pump head 14 are both high temperature resistant equipment.

[0026] The dust removal box 2 is provided with a dust removal water layer 21 ; the dust removal box 2 is connected with an air inlet pipe 22 and an air outlet pipe 23 ; the lower end of the air inlet pipe 22 is arranged in the dust removal water layer 21 ; the upper end of the air inlet pipe 22 is communicated with the spray box 1 .

[0027] A heating pipe 41 is connected to the lower end of the heating box 4; the heating pipe 41 extends to the lower ends of the spray box 1 and the dust removal box 2. The water in the spray box 1 and the dust removal box 2 is heated by the heating pipe 41 to prevent the temperature in the spray box 1 and the dust removal box 2 from lowering and causing asphalt solidification, thereby blocking the pipeline between the spray box 1 and the dust removal box 2.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modified asphalt tank waste gas recovery device, characterized in that: The invention comprises a spray box (1) and a dust removal box (2), wherein one end of the spray box (1) is provided with an air inlet pipe opening (11); the dust removal box (2), the heating box (4) and the first combustion box (5) and the second combustion box (6) are connected in sequence through pipelines; the spray box (1) and the dust removal box (2) are connected with an air suction device; a condensation box (3) is connected between the dust removal box (2) and the heating box (4); the air outlet end of the heating box (4) is connected with the first combustion box (5) through a circulation pipeline; the circulation pipeline is connected with an exhaust gas detection device (7); one end of the second combustion box (6) is provided with an air outlet pipe opening (51), and the lower end of the heating box (4) is connected with a heating pipe (41); the heating pipe (41) extends to the lower ends of the spray box (1) and the dust removal box (2), and the first combustion box (5) and the second combustion box (6) are both provided with a catalytic bed (9) inside.

2. The modified asphalt tank waste gas recovery device according to claim 1 is characterized in that: A water tank (12) is provided in the spray box (1); a spray head (13) is provided at the upper end of the spray box (1); a pump head (14) is provided in the water tank (12); and the pump head (14) is connected to the spray head (13) via a water pipe.

3. The modified asphalt tank waste gas recovery device according to claim 2 is characterized in that: The spray head (13) and the pump head (14) are both high temperature resistant devices.

4. The modified asphalt tank waste gas recovery device according to claim 1 is characterized in that: A dust removal water layer (21) is installed in the dust removal box (2); an air inlet pipe (22) and an air outlet pipe (23) are connected to the dust removal box (2); the lower end of the air inlet pipe (22) is arranged in the dust removal water layer (21); and the upper end of the air inlet pipe (22) is communicated with the inside of the spray box (1).

5. The modified asphalt tank waste gas recovery device according to claim 1 is characterized in that: The air suction device comprises a blower (81); the output end of the blower (81) is in communication with an air inlet pipe (22); the input end of the blower (81) is in communication with a spray box (1); and a filter layer (82) is also provided in the connecting pipe between the blower (81) and the spray box (1).

6. The modified asphalt tank waste gas recovery device according to claim 1 is characterized in that: The outer sides of the pipelines are all connected with insulation layers.

Images