Drying equipment for degreased metal products

Abstract

The utility model belongs to the technical field of metal product processing, and particularly relates to drying equipment for degreased metal products, which comprises an air blower, a drying box and a deoxidizing and heating device, an air outlet of the air blower is in flange connection with an air inlet of the deoxidizing and heating device, and the deoxidizing and heating device is in flange connection with a throat pipe. The drying box is provided with a channel allowing the drying frame to pass through, a sealing strip is arranged between the sealing door and the drying box, the sealing door is connected with the side edge of the channel through a hinge, an air inlet is formed in the other side edge of the drying box, and the exhaust port is formed in the top of the drying box. And the air outlet of the diffuser is connected with the air inlet of the drying box in a socket mode.

Description

Technical Field

[0001] This utility model belongs to the field of metal product processing technology, and in particular relates to a drying device for degreasing metal products. Background Technology

[0002] In the metal product processing and production process, degreasing can provide a clean surface for subsequent processes such as coating, electroplating, and welding, ensuring that each process can proceed smoothly and guarantee product quality. However, the surface of degreased metal products often has a large amount of moisture. For some easily oxidized metals such as iron and steel, in a humid environment, these metals will react chemically with moisture and oxygen in the air, causing the surface to rust and greatly reducing product quality. Although natural drying is simple to operate and has a low cost, the drying speed is extremely slow and the efficiency is low.

[0003] Heating and drying usually uses resistance heating equipment, such as resistance wire heating ovens. Although resistance heating can increase the drying speed, this method cannot isolate oxygen in the air, and therefore cannot solve the technical problem of metal rusting due to chemical reaction with oxygen in the air in a humid environment. The heating process can also promote chemical reaction, accelerating or aggravating corrosion.

[0004] To address the aforementioned problems, this application proposes a drying device for degreasing metal products. Utility Model Content

[0005] The technical problem to be solved by this utility model is the slow drying speed of surface moisture of degreased metal products and the oxidation and corrosion of iron, steel and other metal products caused by humid environments.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a drying device for degreasing metal products, comprising a blower and a drying chamber. Its features include: an oxygen desiccant heating device; the blower outlet is flanged to the oxygen desiccant heating device inlet; the oxygen desiccant heating device is flanged to a throat pipe; the throat pipe is flanged to the diffuser inlet; the drying chamber has a passageway for drying racks to pass through; a sealing strip is provided between the sealing door and the drying chamber; the sealing door is hinged to the side of the passageway; an air inlet is located on the other side of the drying chamber; an exhaust outlet is located on the top of the drying chamber; and the diffuser outlet is connected to the drying chamber inlet via a socket connection.

[0008] Furthermore, a water guide groove is provided at the bottom of the drying chamber near the air inlet, and a drain outlet is provided in the water guide groove.

[0009] Furthermore, the deoxygenation heating device includes a combustion chamber, a fuel supply system, and an ignition device.

[0010] Furthermore, the combustion chamber sidewall has adjacent channels along the longitudinal axis for the fuel nozzle and ignition device to enter. The channel for the fuel nozzle to enter is closer to the blower side. After entering the combustion chamber, the fuel nozzle faces the spark plug. The spark plug extends into the combustion chamber, and the straight-line distance between the fuel nozzle and the spark plug is within millimeters. The fuel supply system includes a fuel tank, which is connected to a fuel valve via a fuel pipe. The lower part of the fuel valve is fixedly connected to a backfire preventer, which is connected to the fuel nozzle. The ignition device includes an ignition controller, which is electrically connected to an ignition coil. The ignition coil is connected to the spark plug. The diameters of the fuel nozzle and the spark plug are adapted to the channels entering the combustion chamber and both have sealing measures.

[0011] Furthermore, the diameter of the throat is smaller than the diameter of the combustion chamber, and the ratio of the throat diameter to the combustion chamber diameter is 0.5:1 to 0.8:1.

[0012] Furthermore, the drying rack is equipped with a drying basket with hooks on the edge, and a crossbar adapted to the hooks is installed on the side of the drying rack; the two corresponding crossbars are parallel and staggered in the horizontal direction, with the crossbar with the lower vertical height close to the air inlet of the drying box; when the drying basket is suspended on the crossbar, its opening is tilted towards the air inlet of the drying box.

[0013] This utility model has the following beneficial effects:

[0014] The blower accelerates the high-temperature, low-oxygen air treated by the deoxygenation heating device through the throat and then evenly sends it into the drying chamber through the diffuser to heat and dry the damp metal products. The combustion reaction removes most of the oxygen in the air and generates carbon dioxide, which can inhibit the oxidation and corrosion of the metal products.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the drying oven of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the drying rack of this utility model;

[0021] Figure 5 This is a cross-sectional view of the deoxygenation heating device of this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the drying basket of this utility model;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] In the diagram: 1. Blower; 2. Deaeration and heating device; 21. Fuel supply system; 211. Fuel tank; 212. Fuel valve; 213. Fuel nozzle; 214. Backfire preventer; 22. Ignition device; 221. Ignition controller; 222. Ignition coil; 223. Spark plug; 23. Combustion chamber; 3. Throat; 4. Diffuser; 5. Drying chamber; 51. Sealing door; 52. Sealing strip; 53. Exhaust port; 54. Water guide trough; 55. Drain outlet; 56. Air inlet; 57. Passageway; 6. Drying rack; 61. Drying basket; 62. Crossbar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6 This disclosure discloses a drying equipment for degreasing metal products, including a blower 1, a deoxygenating heating device 2, a throat 3, a diffuser 4, a drying chamber 5, and a drying rack 6. The air outlet of the blower 1 is connected to the air inlet flange of the deoxygenating heating device 2, and the blower 1 provides air and the power required for airflow to the drying equipment. The deoxygenating heating device 2 consumes the oxygen in the air supplied by the blower 1 through fuel combustion, generating carbon dioxide and water molecules. The deoxygenating heating device 2 is connected to the throat 3 by a flange, and the throat 3 has the function of accelerating airflow. The throat 3 is fixedly connected to the air inlet of the diffuser 4 by a flange, and the air outlet of the diffuser 4 is connected to the air inlet 56 of the drying chamber 5 by a socket connection. The low-oxygen hot air passing through the deoxygenating heating device 2 and the throat 3 can be evenly blown onto the drying rack through the diffuser 4, so that the metal products are heated more evenly during the drying process.

[0027] Specifically, the deaeration heating device 2 includes a combustion chamber 23, a fuel supply system 21, and an ignition device 22. The side wall of the combustion chamber 23 has adjacent channels along its longitudinal axis for the fuel nozzle 213 and the ignition device 22 to enter. The channel for the fuel nozzle 213 to extend into is closer to the blower 1. The fuel nozzle 213 extends into the combustion chamber 23 and faces the spark plug 223, which extends into the combustion chamber 23. The straight-line distance between the fuel nozzle 213 and the spark plug 223 is 20 to 30 millimeters. The fuel supply system 21 includes a fuel tank 211, which is equipped with... The fuel system is provided with the pressure required for fuel to be injected through the fuel nozzle 213. The fuel tank 211 is connected to the fuel valve 212 through the fuel pipe. The lower part of the fuel valve 212 is fixedly connected to the flashback arrestor 214, and the flashback arrestor 214 is connected to the fuel nozzle 213. The ignition device 22 includes an ignition controller 221, which is electrically connected to the ignition coil 222. The ignition coil 222 is connected to the spark plug 223. The diameters of the fuel nozzle 213 and the spark plug 223 are adapted to the channels entering the combustion chamber 23 and both have sealing measures to prevent gas leakage.

[0028] Specifically, the diameter of the throat 3 is smaller than the diameter of the combustion chamber 23, and the ratio of the diameter of the throat 3 to the diameter of the combustion chamber 23 is 0.5:1 to 0.8:1. As the diameter of the throat 3 is reduced, the cross-sectional area for air flow is reduced, and the air velocity will increase under the condition of mass flow conservation, thereby achieving the effect of accelerating air flow.

[0029] Specifically, the drying chamber 5 has a passage 57 through which the drying rack 6 can pass. A sealing strip 52 is provided between the sealing door 51 and the drying chamber 5. The sealing door 51 is connected to the side of the passage 57 by a hinge. An air inlet 56 is provided on the other side of the drying chamber. An exhaust port 53 is provided on the top of the drying chamber 5. A water guide groove 54 is provided on the bottom of the drying chamber 5 near the air inlet 56. A drain outlet 55 is provided in the water guide groove 54 to collect the dripping water from the drying rack 6. The drain outlet 55 is provided in the water guide groove 54 to drain the water accumulated in the water guide groove 54.

[0030] Specifically, the drying rack 6 is equipped with a drying basket 61 with hooks on its edges, and a crossbar 62 adapted to the hooks is installed on the side of the drying rack 6; the two corresponding crossbars 62 are horizontally parallel and staggered, with the crossbar 62 with the lower vertical height close to the air inlet 56 of the drying chamber 5; so that when the drying basket 61 is suspended on the crossbar 62, its opening is tilted towards the air inlet 56 of the drying chamber 5; the tilted drying basket 61 can increase the contact area between the metal products to be dried and the hot air, so that the hot air can more efficiently and evenly wrap the metal products, so that the metal products are heated evenly during the drying process, effectively improving the drying quality and efficiency; the tilted structure can also promote the discharge of residual moisture, further optimizing the drying effect.

[0031] In use, the metal products to be dried are laid flat in the drying basket 61, the drying basket 61 is suspended on the drying rack 6, and the drying rack 6 and the drying basket 61 are pushed into the drying chamber 5 as a whole, with the drying basket 61 tilted towards the air inlet 56 of the drying chamber 5. The water droplets attached to the metal products to be dried drip into the water guide trough 54, are collected through the water guide trough 54 and discharged through the drain outlet 55. The sealing door 51 is closed, the blower 1 is started, and the air enters the combustion chamber 23 and mixes with the fuel for ignition, generating low-oxygen hot air. The hot air is accelerated through the throat pipe 3 and then evenly distributed to the drying chamber 5 through the diffuser 4. The original oxygen-containing cold air in the drying chamber 5 is discharged through the exhaust outlet 53 of the drying chamber 5. The hot air surrounds the metal products and heats them. At the same time, the flowing air carries away the water vapor generated and discharges it through the exhaust outlet 53 of the drying chamber 5.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drying device for degreasing metal products, comprising a blower (1) and a drying oven (5), characterized in that: It also has a deoxygenation heating device (2), the air outlet of the blower (1) is connected to the air inlet of the deoxygenation heating device (2) by a flange, the deoxygenation heating device (2) is connected to the throat pipe (3) by a flange, the throat pipe (3) is fixedly connected to the air inlet of the diffuser (4) by a flange, the drying box (5) has a channel (57) through which the drying rack (6) can pass, a sealing strip (52) is provided between the sealing door (51) and the drying box (5), the sealing door (51) is connected to the side of the channel (57) by a hinge, an air inlet (56) is provided on the other side of the drying box, an exhaust port (53) is provided on the top of the drying box (5), and the air outlet of the diffuser (4) is connected to the air inlet (56) of the drying box (5) by a socket connection.

2. The drying equipment for degreasing metal products according to claim 1, characterized in that: The bottom of the drying box (5) is provided with a water guide groove (54) near the air inlet (56), and there is a drain outlet (55) in the water guide groove (54).

3. The drying equipment for degreasing metal products according to claim 1, characterized in that: The deoxygenation heating device (2) includes a combustion chamber (23), a fuel supply system (21), and an ignition device (22).

4. The drying equipment for degreasing metal products according to claim 3, characterized in that: The combustion chamber (23) has adjacent channels along its longitudinal axis for the fuel nozzle (213) and ignition device (22) to enter. The channel for the fuel nozzle (213) to enter is close to the blower (1). After the fuel nozzle (213) enters the combustion chamber (23), it faces the spark plug (223). The spark plug (223) extends into the combustion chamber (23). The straight-line distance between the fuel nozzle (213) and the spark plug (223) is 20 to 30 mm. The fuel supply system (21) includes a fuel tank (211). 1) The fuel pipe is connected to the fuel valve (212), the lower part of the fuel valve (212) is fixedly connected to the flashback preventer (214), and the flashback preventer (214) is connected to the fuel nozzle (213); the ignition device (22) includes an ignition controller (221), the ignition controller (221) is electrically connected to the ignition coil (222), the ignition coil (222) is connected to the spark plug (223), and the diameter of the fuel nozzle (213) and the spark plug (223) are adapted to the channel entering the combustion chamber (23) and both have sealing measures.

5. The drying equipment for degreasing metal products according to claim 1, characterized in that: The diameter of the throat (3) is smaller than the diameter of the combustion chamber (23), and the ratio of the diameter of the throat (3) to the diameter of the combustion chamber (23) is 0.5:1 to 0.8:

1.

6. The drying equipment for degreasing metal products according to claim 1, characterized in that: The drying rack (6) is equipped with a drying basket (61) with hooks on the edge, and a crossbar (62) adapted to the hooks is installed on the side of the drying rack (6); the two corresponding crossbars (62) are distributed in parallel and staggered in the horizontal direction, and the crossbar (62) with the lower vertical height is close to the air inlet (56) of the drying box (5); when the drying basket (61) is suspended on the crossbar (62), its opening is tilted towards the air inlet (56) of the drying box (5).

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