Aluminum alloy die-casting waste gas treatment device

Abstract

The invention provides an aluminum alloy die-casting waste gas treatment device and belongs to the technical field of waste gas treatment.The aluminum alloy die-casting waste gas treatment device comprises a purifying box and a filtering box, a gas inlet pipe is installed at the bottom of one end of the purifying box in a penetrating mode, purifying liquid is contained in the purifying box, and one end of the interior of the gas inlet pipe is connected with a cooling pipe; a filter screen is mounted in the purification box in the top area of the cooling pipe, and a spraying mechanism and a purification sponge are further mounted in the purification box; according to the aluminum alloy die-casting waste gas purification device, through the cooling pipe, the purification liquid, the purification sponge and the spraying mechanism in the purification box, waste gas generated by aluminum alloy die-casting can be cooled firstly, meanwhile, the waste gas makes contact with the purification liquid for a longer time, the waste gas can be effectively purified, and the waste gas can be effectively purified. Therefore, the reaction purification time of the waste gas is guaranteed, the purification effect on the waste gas is guaranteed, the waste gas generated by aluminum alloy die casting meets the qualified standard of waste gas emission, and the environment is protected.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of waste gas treatment, and in particular to an aluminum alloy die-casting waste gas treatment device. Background Art

[0002] Aluminum die-casting is a kind of pressure-casting part. It uses a pressure-casting mechanical die-casting machine equipped with a casting mold to pour heated liquid aluminum or aluminum alloy into the feed port of the die-casting machine. The die-casting machine is die-cast to cast aluminum parts or aluminum alloy parts of the shape and size limited by the mold. Such parts are usually called aluminum die-castings. The aluminum alloy die-casting process will produce sulfur- and nitrogen-containing exhaust gas, and will also emit a large amount of particulate matter, including dust and black smoke. The exhaust gas from aluminum alloy die-casting has a high temperature and is corrosive. The exhaust gas is acidic when dissolved in water. The pollutants affect the production environment and damage the surrounding environment.

[0003] If the waste gas generated by general aluminum alloy die-casting leads to poor waste treatment effect, it will not meet the qualified standards for waste gas emissions. The inadequately treated waste gas will cause certain pollution to the atmosphere after being discharged. The existing aluminum alloy die-casting waste gas treatment device has the problem that the waste gas cannot fully contact and react with the absorption liquid. Summary of the invention

[0004] The present invention mainly provides an aluminum alloy die-casting waste gas treatment device to solve the technical problems raised in the above background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] An aluminum alloy die-casting waste gas treatment device, comprising a purification box and a filter box, wherein an air intake pipe is installed through the bottom of one end of the purification box, the purification box contains purification liquid, one end of the air intake pipe is connected to a cooling pipe, a filter screen is installed in the purification box at the top area of ​​the cooling pipe, the cooling pipe and the filter screen are both located inside the purification liquid, a spray mechanism and a purification sponge are also installed inside the purification box, the spray mechanism comprises a submersible pump installed in the purification liquid, a delivery pipe connected to the submersible pump, and a transmission pipe installed at one end of the top of the delivery pipe, a plurality of atomizing nozzles are installed at the bottom of the transmission pipe, the delivery pipe passes through the inside of the purification sponge, and the transmission pipe is located on the top of the purification sponge;

[0007] A conducting pipe is connected between the purification box and the filter box, one end of the conducting pipe penetrates the top of the purification box, and the other end penetrates the bottom of the filter box. Multiple activated carbon plates are installed in the filter box, and an exhaust pipe is installed on the top of one end of the filter box away from the conducting pipe.

[0008] Furthermore, in the present invention, an injection pipe and a discharge pipe are installed on one side of the purification box, and solenoid valves are installed on the injection pipe, the discharge pipe and the air inlet pipe. The injection pipe is located in the top area of ​​the filter screen, and the discharge pipe is located in the bottom area of ​​the filter screen.

[0009] Furthermore, in the present invention, an aerator is installed on the conducting pipe.

[0010] Furthermore, in the present invention, the cooling pipe is a spiral structure.

[0011] Furthermore, in the present invention, the transmission pipe is a spiral structure, and a plurality of atomizing nozzles are installed at equal distances at the bottom of the transmission pipe.

[0012] Furthermore, in the present invention, an opening is provided at the front side of the filter box in the activated carbon plate area, a sealing inspection cover is fixedly connected to the opening at the front side of the filter box by a plurality of bolts, and a handle is installed on the sealing inspection cover.

[0013] Furthermore, in the present invention, a plurality of slot blocks are arranged at equal distances on the inner top and the inner bottom of the filter box, and the activated carbon plate is located inside four slot blocks.

[0014] Furthermore, in the present invention, the air intake pipe and the cooling pipe, the delivery pipe and the transmission pipe are all welded and fixed, and the cooling pipe and the transmission pipe are respectively connected to the bottom and the top of the purification box through connecting rods.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention can cool the waste gas generated by aluminum alloy die-casting first through the cooling pipe, purification liquid, purification sponge and spray mechanism inside the purification box to prevent the high-temperature waste gas from affecting the purification equipment. At the same time, when the waste gas passes through the purification sponge, the honeycomb structure of the sponge can slow down the flow speed of the gas and increase the contact area with the waste gas, thereby improving the purification efficiency of the waste gas and making the waste gas contact with the purification liquid for a longer time, thereby ensuring the reaction purification time of the waste gas and the purification effect of the waste gas. At the same time, the waste gas will also be filtered by multiple activated carbon plates, so that the waste gas generated by the aluminum alloy die-casting meets the qualified standards for waste gas emissions and protects the environment.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0020] Figure 3 It is a schematic cross-sectional view of the purification box area structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the air intake pipe and the cooling pipe of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the spray mechanism of the present invention;

[0023] Figure 6 It is a schematic cross-sectional view of the filter box area structure of the present invention.

[0024] In the figure: 10, purification box; 11, air inlet pipe; 12, injection pipe; 13, discharge pipe; 20, filter box; 21, exhaust pipe; 22, sealing inspection cover; 23, handle; 24, activated carbon plate; 25, slot block; 30, conduction pipe; 40, aerator; 50, cooling pipe; 60, filter screen; 70, spray mechanism; 71, submersible pump; 72, delivery pipe; 73, transmission pipe; 74, atomizing nozzle; 80, purification sponge; 90, solenoid valve. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] For examples, please refer to the attached Figure 1-6, an aluminum alloy die-casting waste gas treatment device, comprising a purification box 10 and a filter box 20, wherein an air intake pipe 11 is installed through the bottom of one end of the purification box 10, the purification box 10 contains purification liquid, and one end of the air intake pipe 11 is connected to a cooling pipe 50, and a filter screen 60 is installed in the purification box 10 at the top area of ​​the cooling pipe 50, and the cooling pipe 50 and the filter screen 60 are both located inside the purification liquid, and a spray mechanism 70 and a purification sponge 80 are also installed inside the purification box 10, the spray mechanism 70 comprises a submersible pump 71 installed in the purification liquid, and a delivery pipe 72 connected to the submersible pump 71, and a transmission pipe 73 installed at one end of the top of the delivery pipe 72, a plurality of atomizing nozzles 74 are installed at the bottom of the transmission pipe 73, the delivery pipe 72 passes through the purification sponge 80, and the transmission pipe 73 is located on the top of the purification sponge 80;

[0029] A conducting pipe 30 is connected between the purification box 10 and the filter box 20. One end of the conducting pipe 30 passes through the top of the purification box 10, and the other end passes through the bottom of the filter box 20. A plurality of activated carbon plates 24 are installed in the filter box 20. An exhaust pipe 21 is installed on the top of one end of the filter box 20 away from the conducting pipe 30.

[0030] It should be noted that the electrical components of the device are all electrically connected to a conventional PLC controller, and an air intake pump can be installed at one end of the air intake pipe 11 to allow the exhaust gas to smoothly enter the purification box 10.

[0031] For details, please refer to the attached Figure 1 A liquid injection pipe 12 and a liquid discharge pipe 13 are installed on one side of the purification box 10, and a solenoid valve 90 is installed on the liquid injection pipe 12, the liquid discharge pipe 13 and the air inlet pipe 11. The liquid injection pipe 12 is located in the top area of ​​the filter screen 60, and the liquid discharge pipe 13 is located in the bottom area of ​​the filter screen 60;

[0032] It should be noted that, in this embodiment, the purification liquid is selected according to the type of exhaust gas, the purification liquid can be filled through the injection pipe 12, and the purification liquid can be discharged through the discharge pipe 13, so that the purification liquid can be discharged and replaced, ensuring the purification effect of the purification liquid on the exhaust gas.

[0033] For details, please refer to the attached Figure 2 , an aerator 40 is installed on the conducting pipe 30;

[0034] It should be noted that, in this embodiment, the purified waste gas can be more smoothly transported from the purification box 10 to the filter box 20 for filtration through the aerator 40 .

[0035] For details, please refer to the attached Figure 2 , the cooling tube 50 is a spiral structure;

[0036] It should be noted that, in this embodiment, the spiral structure of the cooling pipe 50 allows the exhaust gas to stay in the cooling pipe 50 for a longer time, and the purification liquid outside the cooling pipe 50 can fully cool the exhaust gas in the cooling pipe 50 to prevent the exhaust gas from overheating and causing damage to the purification box 10.

[0037] For details, please refer to the attached Figure 5 The transmission pipe 73 is a spiral structure, and a plurality of atomizing nozzles 74 are installed at equal distances at the bottom of the transmission pipe 73;

[0038] It should be noted that, in this embodiment, the spiral transmission tube 73 can ensure that the atomizing nozzle 74 covers the purification sponge 80 more comprehensively, so that the purification liquid sprayed by the atomizing nozzle 74 is sprayed more evenly on the purification sponge 80, so that the interior of the purification sponge 80 is fully immersed in the purification liquid to purify the exhaust gas.

[0039] For details, please refer to the attached Figure 2 The front side of the filter box 20 in the area of ​​the activated carbon plate 24 is provided with an opening, and a sealing inspection cover 22 is fixedly connected to the front opening of the filter box 20 by a plurality of bolts, and a handle 23 is installed on the sealing inspection cover 22;

[0040] It should be noted that, in the present embodiment, the activated carbon plate 24 needs to be replaced after being used for a long time. At this time, the sealed inspection cover 22 can be opened by removing the bolts, and then the activated carbon plate 24 inside can be taken out for replacement, which is simple and convenient.

[0041] For details, please refer to the attached Figure 6 , a plurality of slot blocks 25 are arranged at equal distances on the inner top and inner bottom of the filter box 20, and the activated carbon plate 24 is located inside the four slot blocks 25;

[0042] It should be noted that, in the present embodiment, the slot block 25 can be used to fix the activated carbon plate 24 , so as to facilitate the removal and installation of the activated carbon plate 24 .

[0043] For details, please refer to the attached Figure 3 The air intake pipe 11 and the cooling pipe 50, the delivery pipe 72 and the transmission pipe 73 are all welded and fixed, and the cooling pipe 50 and the transmission pipe 73 are respectively connected to the bottom and the top of the purification box 10 through connecting rods;

[0044] It should be noted that, in this embodiment, the cooling pipe 50 and the transmission pipe 73 are relatively long, and by being connected to the purification box 10, the stability of the pipe connection can be ensured.

[0045] The specific operation mode of the present invention is as follows:

[0046] The exhaust gas enters the purification box 10 through the intake pipe 11. When the exhaust gas passes through the cooling pipe 50, the purification liquid outside the cooling pipe 50 can fully cool the exhaust gas in the cooling pipe 50 to prevent the exhaust gas from overheating and causing damage to the purification box 10. Finally, the exhaust gas enters the purification box 10 and contacts with the purification liquid, thereby being initially purified. After that, larger impurities in the exhaust gas will be blocked by the filter 60, thereby remaining in the purification liquid. The exhaust gas passes through the filter 60, and then the submersible pump 71 transports the purification liquid through the delivery pipe 72 and the transmission pipe 73 to multiple atomizing nozzles 74, and finally sprays it on the purification sponge 80, so that the purification sponge 80 is impregnated with the purification liquid. When the exhaust gas passes through the purification sponge 80, the honeycomb structure of the sponge can slow down the flow speed of the gas, while increasing the contact area with the exhaust gas, thereby improving the purification efficiency of the exhaust gas. Finally, the exhaust gas enters the filter box 20 from the guide pipe 30 through the aerator 40, and the exhaust gas is discharged from the exhaust pipe 21 after passing through multiple activated carbon plates 24, completing the final purification.

[0047] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An aluminum alloy die-casting waste gas treatment device, comprising a purification box (10) and a filter box (20), characterized in that: An air intake pipe (11) is installed through the bottom of one end of the purification box (10), the purification box (10) contains purification liquid, one end of the air intake pipe (11) is connected to a cooling pipe (50), a filter (60) is installed in the purification box (10) at the top area of ​​the cooling pipe (50), the cooling pipe (50) and the filter (60) are both located inside the purification liquid, a spray mechanism (70) and a purification sponge (80) are also installed inside the purification box (10), the spray mechanism (70) includes a submersible pump (71) installed in the purification liquid, a delivery pipe (72) connected to the submersible pump (71), and a transmission pipe (73) installed at one end of the top of the delivery pipe (72), a plurality of atomizing nozzles (74) are installed at the bottom of the transmission pipe (73), the delivery pipe (72) passes through the inside of the purification sponge (80), and the transmission pipe (73) is located on the top of the purification sponge (80); A conducting pipe (30) is connected between the purification box (10) and the filter box (20); one end of the conducting pipe (30) penetrates the top of the purification box (10) and the other end penetrates the bottom of the filter box (20); a plurality of activated carbon plates (24) are installed in the filter box (20); and an exhaust pipe (21) is installed at the top of one end of the filter box (20) away from the conducting pipe (30).

2. The aluminum alloy die-casting waste gas treatment device according to claim 1, characterized in that: A liquid injection pipe (12) and a liquid discharge pipe (13) are installed on one side of the purification box (10); a solenoid valve (90) is installed on the liquid injection pipe (12), the liquid discharge pipe (13) and the air intake pipe (11); the liquid injection pipe (12) is located in the top area of ​​the filter screen (60), and the liquid discharge pipe (13) is located in the bottom area of ​​the filter screen (60).

3. The aluminum alloy die-casting waste gas treatment device according to claim 1, characterized in that: An aerator (40) is installed on the conducting pipe (30).

4. The aluminum alloy die-casting waste gas treatment device according to claim 1, characterized in that: The cooling pipe (50) is a spiral structure.

5. The aluminum alloy die-casting waste gas treatment device according to claim 1, characterized in that: The transmission pipe (73) is a spiral structure, and a plurality of atomizing nozzles (74) are installed at equal distances at the bottom of the transmission pipe (73).

6. The aluminum alloy die-casting waste gas treatment device according to claim 1, characterized in that: An opening is provided on the front side of the filter box (20) in the area of ​​the activated carbon plate (24), and a sealing inspection cover (22) is fixedly connected to the opening on the front side of the filter box (20) by a plurality of bolts, and a handle (23) is installed on the sealing inspection cover (22).

7. The aluminum alloy die-casting waste gas treatment device according to claim 1, characterized in that: A plurality of slot blocks (25) are arranged at equal distances on the inner top and the inner bottom of the filter box (20), and the activated carbon plate (24) is located inside four slot blocks (25).

8. The aluminum alloy die-casting waste gas treatment device according to claim 1, characterized in that: The air intake pipe (11) and the cooling pipe (50), and the pipes between the delivery pipe (72) and the transmission pipe (73) are all welded and fixed, and the cooling pipe (50) and the transmission pipe (73) are respectively connected to the inner bottom and inner top of the purification box (10) through connecting rods.

Images