Protective device for metal surface heat treatment

Abstract

The utility model discloses a protective device for metal surface heat treatment, relates to the technical field of protection for metal surface heat treatment, and aims to solve the technical problem that lampblack waste gas and harmful gas which are generated in the current metal surface heat treatment process are directly discharged to harm the environment and personnel health, and the protective device comprises a gas hood. Through the gas hood, the first pipeline structure, the purification structure, the fan and other structures, when the metal surface heat treatment quenching work is carried out, the fan can be controlled to work after an incandescent metal piece is placed in the cooling pool, and the cooling effect is improved. Then a large amount of lampblack waste gas and harmful gas generated in the quenching process can be absorbed through the gas hood and the first pipeline structure and then conveyed to the purification structure, the purification structure purifies and filters the lampblack waste gas and the harmful gas, and then the lampblack waste gas and the harmful gas are discharged to the outside; therefore, the situation that a large amount of oil smoke waste gas and harmful gas generated in the quenching process are directly discharged to the outside, and consequently the environment and the health of people are harmed can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of protective technology for heat treatment of metal surfaces, and more specifically, to a protective device for heat treatment of metal surfaces. Background Technology

[0002] The main purpose of metal surface heat treatment is to improve wear resistance, hardness, and service life by changing its surface properties. During metal surface heat treatment, the metal surface first needs to be quenched and then placed in a cooling tank for rapid cooling. When the hot metal parts are placed in the cooling tank for rapid cooling, the quenching medium used will generate a large amount of oil fume waste gas due to the evaporation caused by the heat. In addition, the grease, rust inhibitors, and other organic additives on the metal surface will also produce harmful gases when they decompose at high temperatures. These waste gases will be directly discharged into the environment, which may cause harm to the environment and the health of operators. In view of this, we propose a protective device for metal surface heat treatment. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a protective device for metal surface heat treatment, so as to solve the technical problem that the direct emission of oil fumes and harmful gases generated during the current metal surface heat treatment process will harm the environment and human health.

[0004] To solve the above technical problems, the present invention provides the following technical solution: a protective device for heat treatment of metal surfaces, including an air hood, a support is arranged on the top of the air hood, a fan and a purification structure are arranged on the top of the support, a first pipeline structure is arranged between the input end of the fan and the air hood, and the output end of the fan is connected to the input end of the purification structure through a conduit.

[0005] The air hood has a triangular design, and air outlet chambers are opened at the front and rear ports of the air hood. A second pipeline structure is arranged between the air outlet chamber and the output end of the purification structure. Several sets of equidistant air outlets are provided on the inner wall of the air hood, and the air outlets are connected to the air outlet chambers. The air outlets are inclined inward.

[0006] This invention, through its designed air hood, first pipeline structure, purification structure, and fan, allows for the absorption of large amounts of oily fumes and harmful gases generated during the quenching process of metal surface heat treatment after the hot metal parts are placed in the cooling tank. The air hood and first pipeline structure then transport these gases to the purification structure for filtration before discharging them to the outside. This effectively prevents the direct release of large amounts of oily fumes and harmful gases into the environment, thus avoiding harm to human health. The triangular design of the air hood allows oil adhering to its inner wall to slide down to the bottom and fall into a recessed area, from which the oil is discharged. This effectively prevents the oil from falling back into the cooling tank. Furthermore, the inner wall of the gas hood has outlet chambers located before and after the intake chamber, at both ends of the gas hood. An inwardly inclined outlet end is installed on the inner wall of the gas hood at the outlet chamber. A second pipeline structure, which works in conjunction with the outlet chamber to conduct gas, is also installed on the gas hood and connected to the output end of the purification structure. Therefore, the gas purified by the purification structure enters the outlet chamber of the gas hood through the second pipeline structure. The purified gas is then ejected into the gas hood through the outlet end in an inward manner, thus guiding the airflow at the front and rear ends of the gas hood. This allows for the effective utilization of the purified gas and effectively prevents the oil fumes and harmful gases generated during high-temperature metal quenching from escaping from the front and rear ends of the gas hood. It also ensures more thorough purification of the oil fumes and harmful gases generated during high-temperature metal quenching.

[0007] Preferably, the air hood has an air intake chamber, and the inner wall of the air hood has a plurality of air intake holes at equal intervals, and the air intake holes are connected to the air intake chamber.

[0008] Preferably, the first pipeline structure includes a first herringbone-shaped air guide pipe and several sets of transverse air guide pipes. The transverse air guide pipes are arranged at equal intervals on the surface of the air hood. The input end of the transverse air guide pipe is connected to the air intake chamber. The input end of the first herringbone-shaped air guide pipe is connected to the transverse air guide pipes respectively. The output end of the first herringbone-shaped air guide pipe is connected to the input end of the fan.

[0009] Preferably, the second pipeline structure includes two sets of second herringbone-shaped air guides and a three-way air guide, wherein the output end of the three-way air guide is connected to the input end of the second herringbone-shaped air guide, and the input end of the three-way air guide is connected to the output end of the purification structure.

[0010] Preferably, the purification structure includes a box body, a top cover is arranged on the top of the box body, and a number of activated carbon mesh plates are arranged at equal intervals on the bottom of the top cover, and the activated carbon mesh plates are inserted into the box body.

[0011] Preferably, L-shaped plates are arranged at the bottom of the two side walls of the air hood, and the L-shaped plates and the inner wall of the air hood are combined to form a groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This utility model, through its designed air hood, first pipeline structure, purification structure, and fan, allows for the absorption of large amounts of oily fumes and harmful gases generated during the quenching process of metal surface heat treatment after the hot metal parts are placed in the cooling tank. The air hood and first pipeline structure then transport these gases to the purification structure for further purification and filtration before discharging them to the outside. This effectively prevents the direct emission of large amounts of oily fumes and harmful gases generated during quenching into the environment, thus avoiding harm to the environment and human health. It solves the technical problem of the direct emission of oily fumes and harmful gases during current metal surface heat treatment processes, which poses a threat to the environment and human health. Therefore, this utility model has the advantages of being safer and more environmentally friendly.

[0014] 2. The gas hood of this utility model has a triangular design. When absorbing oily fumes, the oil adhering to the inner wall of the gas hood will slide down the inclined inner wall to the bottom and fall into the bottom groove, and then be discharged from both ends of the groove. This can effectively prevent the oil from falling back into the cooling pool. Moreover, the inner wall of the gas hood has air outlet chambers at the front and rear of the air intake chamber, and the air outlet chambers are located at the front and rear ends of the gas hood. Then, the inner wall of the gas hood is provided with an inwardly inclined air outlet end at the air outlet chamber. Then, a second pipeline structure is provided on the gas hood to conduct gas in conjunction with the air outlet chamber. The second pipeline structure is connected to the net The gas is connected to the output end of the purification structure. Therefore, the gas purified by the purification structure will enter the outlet chamber of the gas hood through the second pipeline structure. Then, the purified gas will be sprayed into the gas hood in an inward manner through the outlet end on the outlet chamber. This can guide the airflow at the front and rear ports of the gas hood, thereby effectively utilizing the purified gas. This can effectively prevent the oil fumes and harmful gases generated by high-temperature metal quenching from escaping from the front and rear ports of the gas hood, and further ensure that the oil fumes and harmful gases generated by high-temperature metal quenching are more thoroughly purified. Attached Figure Description

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram showing the arrangement of the air hood, the first pipeline structure, and the second pipeline structure of this utility model.

[0017] Figure 3 This is a partial cross-sectional structural diagram of the air hood of this utility model;

[0018] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the purification structure of this utility model;

[0020] Figure 6 This is a schematic diagram of one usage state of the present invention.

[0021] Description of the numbers in the figure:

[0022] 1. Air hood; 101. Inhalation chamber; 102. Inhalation hole; 103. Exhalation chamber; 104. Exhalation end; 105. L-shaped plate; 2. Support; 3. Fan; 4. Purification structure; 401. Box body; 402. Top cover; 403. Activated carbon mesh plate; 5. First pipeline structure; 501. Horizontal air guide pipe; 502. First herringbone air guide pipe; 6. Second pipeline structure; 601. Second herringbone air guide pipe; 602. T-junction air guide pipe. Detailed Implementation

[0023] like Figures 1 to 6 As shown, this utility model relates to a protective device for metal surface heat treatment, including an air hood 1, a support 2 arranged on the top of the air hood 1, a fan 3 and a purification structure 4 arranged on the top of the support 2, a first pipeline structure 5 arranged between the input end of the fan 3 and the air hood 1, and the output end of the fan 3 connected to the input end of the purification structure 4 through a conduit. During the quenching process of metal surface heat treatment, after the hot metal part is placed in the cooling pool, the fan 3 can be controlled to work. Then, the air hood 1 and the first pipeline structure 5 can absorb a large amount of oily fumes and harmful gases generated during the quenching process, and then transport them to the purification structure 4. The purification structure 4 purifies and filters the oily fumes and harmful gases, and then discharges them to the outside. This can effectively prevent a large amount of oily fumes and harmful gases generated during the quenching process from being directly discharged to the outside, thereby avoiding the situation where they harm the environment and human health.

[0024] Specifically, the gas hood 1 has an air intake chamber 101, and the inner wall of the gas hood 1 has several sets of air intake holes 102 at equal intervals. The air intake holes 102 are connected to the air intake chamber 101. A large amount of oil fume and harmful gases generated during the metal heat treatment quenching process are drawn into the air intake chamber 101 through the air intake holes 102, and then discharged through the first pipeline structure 5.

[0025] Furthermore, the first pipeline structure 5 includes a first herringbone-shaped air guide pipe 502 and several sets of transverse air guide pipes 501. The transverse air guide pipes 501 are arranged at equal intervals on the surface of the air hood 1. The input end of the transverse air guide pipe 501 is connected to the suction chamber 101. The input end of the first herringbone-shaped air guide pipe 502 is connected to the transverse air guide pipe 501 respectively. The output end of the first herringbone-shaped air guide pipe 502 is connected to the input end of the fan 3. Through the cooperation of the first herringbone-shaped air guide pipe 502 and several sets of transverse air guide pipes 501, the suction holes 102 on the inner wall of the air hood 1 can generate effective suction, thereby fully absorbing the large amount of oil fume and harmful gases generated during the metal quenching process.

[0026] Furthermore, the purification structure 4 includes a box body 401, with a top cover 402 arranged on the top of the box body 401. Several sets of activated carbon mesh plates 403 are arranged at equal intervals at the bottom of the top cover 402, and the activated carbon mesh plates 403 are inserted into the box body 401. Oily fumes and harmful gases enter the box body 401, and then the activated carbon mesh plates 403 purify and filter the oily fumes and harmful gases. The purified and filtered gas is discharged from the output end of the box body 401.

[0027] In this embodiment of the invention, the hood 1 is triangular in design. Air outlet chambers 103 are provided at the front and rear ends of the hood 1. A second pipeline structure 6 is arranged between the air outlet chambers 103 and the output end of the purification structure 4. Several sets of equidistant air outlets 104 are provided on the inner wall of the hood 1, and the air outlets 104 communicate with the air outlet chambers 103, with the air outlets 104 inclined inwards. L-shaped plates 105 are arranged at the bottom of both side walls of the hood 1, and the L-shaped plates 105 and the inner wall of the hood 1 combine to form grooves. When absorbing oily fumes, the oil stains adhering to the inner wall of the hood 1 will slide down the inclined inner wall of the hood 1 to the bottom and then fall into the bottom groove. With exhaust from both ends, oil stains can be effectively prevented from falling back into the cooling pool. The gas purified by the purification structure 4 will enter the exhaust chamber 103 of the gas hood 1 through the second pipeline structure 6. Then, the purified gas will be sprayed into the gas hood 1 through the exhaust end 104 on the exhaust chamber 103 in an inward manner. This can guide the airflow at the front and rear ports of the gas hood 1, thereby making effective use of the purified gas. It can also effectively prevent the oil fumes and harmful gases generated by high-temperature metal quenching from escaping from the front and rear ports of the gas hood 1, and further ensure that the oil fumes and harmful gases generated by high-temperature metal quenching are more thoroughly purified.

[0028] Specifically, the second pipeline structure 6 includes two sets of second herringbone-shaped air guide pipes 601 and three-way air guide pipes 602. The output end of the three-way air guide pipe 602 is connected to the input end of the second herringbone-shaped air guide pipe 601, and the input end of the three-way air guide pipe 602 is connected to the output end of the purification structure 4. With the cooperation of the second herringbone-shaped air guide pipes 601 and the three-way air guide pipes 602, the purified gas can be evenly discharged from several sets of air outlets 104.

[0029] Working principle: This embodiment provides a protective device for metal surface heat treatment. First, during the quenching process of metal surface heat treatment, after the hot metal part is placed in the cooling pool, the fan 3 can be controlled to work. Then, through the suction chamber 101 and suction hole 102 of the air hood 1, in conjunction with the first pipeline structure 5, a large amount of oil fume and harmful gas generated during the quenching process can be absorbed and then transported to the purification structure 4. The purification structure 4 purifies and filters the oil fume and harmful gas before discharging it to the outside. This can effectively prevent a large amount of oil fume and harmful gas generated during the quenching process from being directly discharged to the outside, thereby avoiding the situation where it harms the environment and human health.

[0030] Secondly, when absorbing oily fumes, the oil stains adhering to the inner wall of the hood 1 will slide down the inclined inner wall of the hood 1 to the bottom, and then fall into the bottom groove, and be discharged from both ends of the groove, which can effectively prevent the oil stains from falling back into the cooling pool.

[0031] Finally, the gas purified by the purification structure 4 enters the outlet chamber 103 of the gas hood 1 through the second pipeline structure 6. The purified gas is then ejected into the gas hood 1 through the outlet end 104 on the outlet chamber 103 in an inward discharge manner. This guides the airflow at the front and rear ports of the gas hood 1, allowing for the effective utilization of the purified gas. Furthermore, it effectively prevents the oil fumes and harmful gases generated during high-temperature metal quenching from escaping from the front and rear ports of the gas hood 1, further ensuring more thorough purification of the oil fumes and harmful gases generated during high-temperature metal quenching.

[0032] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A protective device for heat treatment of metal surfaces, characterized in that, Includes an air hood (1), a support (2) is arranged on the top of the air hood (1), a fan (3) and a purification structure (4) are arranged on the top of the support (2), a first pipeline structure (5) is arranged between the input end of the fan (3) and the air hood (1), and the output end of the fan (3) is connected to the input end of the purification structure (4) through a conduit; The air hood (1) is triangular in design. Air outlet chambers (103) are provided at the front and rear ports of the air hood (1). A second pipeline structure (6) is arranged between the air outlet chamber (103) and the output end of the purification structure (4). Several sets of equidistant air outlets (104) are provided on the inner wall of the air hood (1), and the air outlets (104) are connected to the air outlet chambers (103). The air outlets (104) are inclined inward.

2. The protective device for heat treatment of metal surfaces according to claim 1, characterized in that, The air hood (1) is provided with an air intake chamber (101), and a number of air intake holes (102) are provided at equal intervals on the inner wall of the air hood (1), and the air intake holes (102) are connected to the air intake chamber (101).

3. The protective device for heat treatment of metal surfaces according to claim 2, characterized in that, The first pipeline structure (5) includes a first herringbone-shaped air guide pipe (502) and several sets of transverse air guide pipes (501). The transverse air guide pipes (501) are arranged at equal intervals on the surface of the air hood (1). The input end of the transverse air guide pipe (501) is connected to the air intake chamber (101). The input end of the first herringbone-shaped air guide pipe (502) is connected to the transverse air guide pipes (501) respectively. The output end of the first herringbone-shaped air guide pipe (502) is connected to the input end of the fan (3).

4. The protective device for heat treatment of metal surfaces according to claim 1, characterized in that, The second pipeline structure (6) includes two sets of second herringbone-shaped air guide pipes (601) and three-way air guide pipes (602). The output end of the three-way air guide pipe (602) is connected to the input end of the second herringbone-shaped air guide pipe (601), and the input end of the three-way air guide pipe (602) is connected to the output end of the purification structure (4).

5. A protective device for heat treatment of metal surfaces according to claim 1, characterized in that, The purification structure (4) includes a box body (401), a top cover (402) is arranged on the top of the box body (401), and a number of activated carbon mesh plates (403) are arranged at equal intervals on the bottom of the top cover (402), and the activated carbon mesh plates (403) are inserted into the box body (401).

6. A protective device for heat treatment of metal surfaces according to claim 1, characterized in that, The bottom of the two side walls of the air hood (1) is provided with L-shaped plates (105), and the L-shaped plates (105) and the inner wall of the air hood (1) are combined to form a groove.

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