Slab steam injection device

Abstract

The utility model discloses a plate blank steam injection device which comprises a conveyor, a heating assembly, a steam generator and a steam header, the heating assembly is arranged on the conveyor and used for steam injection heating of a plate blank, the steam generator is arranged on one side of the conveyor and used for generating steam, and the steam header is provided with an input end and an output end. The input end of the steam-distributing cylinder is connected with a steam generator through a steam input pipe, the output end of the steam-distributing cylinder is connected with a heating assembly through a steam output pipe, and a heating pipe is arranged in the steam-distributing cylinder and used for heating steam in the steam-distributing cylinder. According to the utility model, the steam generated by the steam generator enters the steam-distributing cylinder through the steam input pipe, the heating pipe reheats the steam in the steam-distributing cylinder, the generation of condensed water due to temperature reduction is avoided, and the heated steam is conveyed to the heating assembly through the steam output pipe to carry out steam-injection preheating on a plate blank.

Description

Technical Field

[0001] The utility model relates to the technical field of slab processing, in particular to a slab steam spraying device. Background Art

[0002] In the production process of particleboard, fiberboard and other boards, the slab needs to be hot-pressed to form the slab. Before hot pressing, the slab needs to be steamed to preheat the slab. During the steaming process, a steam generator generates high-temperature steam, which is transported through a pipeline to heat the slab. During the steaming process, the steam generally enters the steam cylinder first, which is used to distribute and transport the steam. It can also play a role in regulating the gas pressure. However, the temperature of the steam will drop when passing through the pipeline and the steam cylinder. As we all know, steam is generated by heating water at high temperature. After the temperature drops, it is easy to condense to form condensed water. However, the slab is not compacted during hot pressing. After the slab contacts the condensed water, water spots will form on the surface of the slab, affecting the appearance of the product. At the same time, the wood chips are easy to adhere to the steaming mesh belt of the conveyor, making it difficult to clean. Utility Model Content

[0003] The utility model aims to provide a slab steam spraying device to address the deficiencies of the prior art.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A slab steam spraying device comprises a conveyor;

[0006] A heating component is arranged on the conveyor and is used for steam spraying and heating the slab;

[0007] A steam generator, used to generate steam for spraying the slab;

[0008] The steam cylinder is provided with an input end and an output end, wherein the input end is connected to the steam generator through a steam input pipe, and the output end is connected to the heating component through a steam output pipe;

[0009] The heating pipe is arranged in the cylinder.

[0010] Preferably, a plurality of fins are arranged at intervals on the tube wall of the heating tube, and two adjacent fins are arranged in parallel.

[0011] Preferably, a plurality of ventilation holes are provided on the fin.

[0012] Preferably, the ventilation holes on two adjacent fins are arranged alternately.

[0013] Preferably, the heating component includes an air collecting hood, a steam spray plate is arranged in the air collecting hood, a steam spray chamber is arranged in the steam spray plate, a spray head is arranged on the steam spray plate, the spray head is connected to the steam spray chamber, and the steam output pipe is connected to the steam spray plate.

[0014] Preferably, brackets are fixedly provided on both sides of the conveyor, and the air collecting hood is vertically slidably provided on the brackets.

[0015] Preferably, a lead screw is rotatably provided on the bracket, and transmission blocks are fixedly provided on both sides of the air collecting hood, and the transmission blocks are threadedly connected to the lead screw.

[0016] Preferably, a slide groove is provided on the bracket, a slide bar is provided on the transmission block, and the slide bar is slidably arranged in the slide groove.

[0017] Preferably, a steam spraying plate is provided below the conveyor, and the steam spraying plate and the steam cylinder are connected via a steam output pipe.

[0018] The beneficial effects of adopting the above technical solution are:

[0019] 1. In the utility model, after the steam generator generates steam, the steam enters the sub-cylinder for pressure regulation and steam distribution. In order to avoid the temperature of the steam from decreasing, a heating pipe is provided in the sub-cylinder to heat the steam in the sub-cylinder to increase the temperature of the steam. After the steam is discharged from the sub-cylinder, the slab is heated, which can avoid the appearance of condensed water and improve the heating effect.

[0020] 2. In the present invention, the gas collecting hood can be adjusted up and down, and the steam spray plate is arranged in the gas collecting hood and can move up and down synchronously with the gas collecting hood to adjust the height to adapt to slabs of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0022] Figure 2 It is a front view of the utility model;

[0023] Figure 3 It is a three-dimensional schematic diagram of the heating component of the utility model;

[0024] Figure 4 It is a three-dimensional schematic diagram of the heating tube of the utility model;

[0025] Figure 5 It is a three-dimensional schematic diagram of the gas collecting hood of the utility model.

[0026] In the figure: 1 is a conveyor, 2 is a steam generator, 3 is a steam cylinder, 4 is a steam input pipe, 5 is a steam output pipe, 6 is a heating pipe, 7 is a fin, 8 is an air vent, 9 is a gas collecting hood, 10 is a steam spray plate, 11 is a nozzle, 12 is a bracket, 13 is a lead screw, and 14 is a transmission block. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1As shown, a slab steam spraying device comprises a conveyor 1, wherein the conveyor 1 comprises a frame and a conveyor belt rotatably arranged on the frame, the slab is transported along the conveyor belt, the conveyor belt is a steam spraying mesh belt, and steam can pass smoothly through the conveyor, a heating component is arranged on the conveyor for spraying steam on the slab for heating, and a steam generator 2 is also arranged, wherein the steam generator 2 is provided with an evaporation tube, the steam generator 2 is located on one side of the conveyor 1, and the steam generator 2 is used to generate high-temperature steam, a sub-cylinder 3 is arranged between the steam generator 2 and the heating component, the sub-cylinder 3 is provided with an input end and an output end, and the sub-cylinder The input end of the steam generator 3 is connected with a steam input pipe 4, and the other end of the steam input pipe 4 is connected with the evaporation pipe of the steam generator 2. The steam generated by the steam generator 2 enters the sub-cylinder 3 through the input end of the sub-cylinder 3. The output end of the sub-cylinder 3 and the heating component are connected through a steam output pipe 5. After the steam is discharged from the output end of the sub-cylinder 3, it is transported to the heating component through the steam output pipe 5 to heat the slab on the conveyor 1. In order to avoid condensation caused by the decrease of steam temperature, a heating pipe 6 is arranged in the sub-cylinder 3. Heat transfer oil flows in the heating pipe 6. The working temperature of the heat transfer oil is generally 150°C.

[0031] -400℃ is enough for steam heating in the steam cylinder 3 to avoid the steam temperature from decreasing. The heated steam is transported to the heating component to spray the slab, which can prevent condensed water from dripping on the slab and improve the quality of the slab.

[0032] like Figure 1 and Figure 4 As shown, further, a plurality of fins 7 are arranged on the tube wall of the heating tube 6, and two adjacent fins 7 are arranged in parallel. The cylinder barrel of the steam sub-cylinder 3 is a circular structure, so the shape of the fin 7 is a circular structure, and the diameter of the fin 7 is smaller than the cylinder barrel diameter of the steam sub-cylinder 3. The fin 7 can increase the contact area with the steam, so as to better heat the steam. A plurality of air holes 8 are opened on the fin to facilitate the circulation of steam in the steam sub-cylinder 3, and the air holes 8 on two adjacent fins 7 are staggered, which can achieve a better heating effect.

[0033] like Figure 1 , Figure 3 and Figure 5As shown, further, the heating component includes an air collecting hood 9, a steam spraying plate 10 is fixedly arranged in the air collecting hood 9, a hollow steam spraying chamber is arranged in the steam spraying plate 10, a nozzle 11 is arranged on the steam spraying plate 10, the nozzle 11 is located below the steam spraying plate 11, the nozzle 11 is connected with the steam spraying chamber, the steam output pipe 5 is connected with the steam spraying plate 10, the steam output pipe 5 is connected with the steam spraying chamber, the steam output in the steam cylinder 3 can be transported to the steam spraying chamber along the steam output pipe 5, and then sprayed out through the nozzle 11, and the steam spraying chamber can play a role in evenly outputting steam.

[0034] Furthermore, brackets 12 are fixedly provided on both sides of the conveyor 1, and the gas collecting hood 9 is vertically slidably provided on the brackets 12, so as to adjust the distance between the gas collecting hood 9 and the slab to adapt to the steam spraying of slabs of different thicknesses; in order to facilitate the up and down adjustment of the gas collecting hood 9, the steam input pipe 4 adopts a hose, which will not affect the movement of the gas collecting hood 9.

[0035] Furthermore, a screw 13 is rotatably provided on the bracket 12, and a motor is fixedly provided on the bracket 12. The motor is transmission-connected to the screw 13, and the motor drives the screw 13 to rotate. Transmission blocks 14 are fixedly provided on both sides of the air collecting hood 9, and the transmission blocks 14 are threadedly connected to the screw 13. The rotation of the screw 13 can drive the transmission blocks 14 and the air collecting hood 9 to move up and down.

[0036] Furthermore, a slide groove is vertically arranged on the side wall of the bracket 12, and a slide bar is arranged on the side wall of the transmission block 14. The slide bar is adapted to the slide groove, and the slide bar is slidably arranged in the slide groove, so that the transmission block 14 can be more stable when sliding up and down along the bracket 12.

[0037] Furthermore, the air collecting hood 9 is provided with an exhaust pipe, and the steam can be sucked and collected by the exhaust pipe after heating the slab. The collected steam can be used for waste heat recovery and reuse, reducing energy waste and preventing steam from being dissipated into the workshop, causing the temperature and humidity of the workshop to increase.

[0038] In another embodiment, if Figure 1 and Figure 2 As shown, a steam spray plate is fixedly arranged below the conveyor 1, and the steam cylinder 3 is provided with two output ends, both of which are connected with steam output pipes 5, one of which is connected to the steam spray plate 10 above the conveyor, and the other is connected to the steam spray plate 10 below the conveyor. A steam spray chamber is also provided on the steam spray plate 10, and a plurality of nozzles are provided above the steam spray plate 10, and the nozzles face one side of the slab. The steam spray plate 10 located below the conveyor 1 can spray steam from below the slab, so that both the upper and lower sides of the slab can be heated by steam spraying, thereby improving the preheating speed and preheating effect.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slab steaming device, characterized in that: comprising a conveyor (1); A heating component is arranged on the conveyor (1) and is used for spraying steam to heat the slab; A steam generator (2) for generating steam for spraying steam on the slab; The steam cylinder (3) is provided with an input end and an output end, the input end is connected to the steam generator (2) via a steam input pipe (4), and the output end is connected to the heating component via a steam output pipe (5); The heating pipe (6) is arranged in the sub-cylinder (3).

2. The slab steaming device according to claim 1, characterized in that: A plurality of fins (7) are arranged at intervals on the tube wall of the heating tube (6), and two adjacent fins (7) are arranged in parallel.

3. The slab steaming device according to claim 2, characterized in that: The fin (7) is provided with a plurality of ventilation holes (8).

4. The slab steaming device according to claim 3, characterized in that: The ventilation holes (8) on two adjacent fins (7) are arranged in a staggered manner.

5. The slab steaming device according to claim 1, characterized in that: The heating assembly comprises an air collecting hood (9), a steam spraying plate (10) is fixedly arranged in the air collecting hood (9), a steam spraying chamber is arranged in the steam spraying plate (10), a spray head (11) is arranged on the steam spraying plate (10), the spray head (11) is connected to the steam spraying chamber, and the steam output pipe (5) is connected to the steam spraying plate (10).

6. The slab steaming device according to claim 5, characterized in that: Brackets (12) are fixedly arranged on both sides of the conveyor (1), and the air collecting hood (9) is vertically slidably arranged on the brackets (12).

7. The slab steaming device according to claim 6, characterized in that: A lead screw (13) is rotatably arranged on the bracket (12), and transmission blocks (14) are fixedly arranged on both sides of the air collecting hood (9), and the transmission blocks (14) are threadedly connected to the lead screw (13).

8. The slab steaming device according to claim 7, characterized in that: The bracket (12) is provided with a slide groove, the transmission block (14) is provided with a slide bar, and the slide bar is slidably arranged in the slide groove.

9. The slab steaming device according to claim 5, characterized in that: A steam spraying plate (10) is provided below the conveyor (1), and the steam spraying plate (10) and the steam sub-cylinder (3) are connected via a steam output pipe (5).

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