Furnace wall cooling device of kiln furnace

Abstract

The utility model relates to the technical field of glass production, and particularly discloses a furnace wall cooling device of a kiln furnace, which comprises a pressure equalizing air bellow, an air supply pipeline, a first air supply assembly and a second air supply assembly, the outlet end of the air supply pipeline is communicated with the pressure equalizing air box; the first air supply assembly is arranged on the air supply pipeline and used for conveying air to the pressure equalizing air bellow. The air inlets of the second air supply assemblies correspondingly communicate with the pressure equalizing air outlets correspondingly. The air outlets of the second air supply assemblies are arranged in a scattered mode, air flowing out of the air outlets of the second air supply assemblies forms an air outlet face, and the air outlet face can cover the furnace wall of the whole kiln furnace. The air outlet face is an intersection face of air flowing out of the air outlets of the second air supply assemblies and the plane where the furnace wall is located. According to the arrangement, the uniformity of cooling the furnace wall can be improved, the service life of the pool wall brick is prolonged, and the melting quality of molten glass is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production, in particular to a furnace wall cooling device. Background Art

[0002] During the production process of display material carrier glass, the mixed materials need to be melted at high temperature in the kiln to form glass liquid. During the melting process of the mixed materials, the temperature of the kiln will rise to above 1300℃. In order to slow down the erosion of the pool wall bricks and electrode bricks in the furnace wall of the kiln by the glass liquid and extend the service life of the kiln, the furnace wall of the kiln needs to be cooled.

[0003] Traditional cooling blows out cooling air through several air outlets, each of which is a circular air head, and the wind direction and wind speed are fixed. There is a dead zone in the cooling area, which causes uneven temperature of the pool wall bricks and electrode bricks, resulting in serious erosion of the pool wall bricks with poor cooling effect. At the same time, the uneven temperature of the furnace wall surface will lead to uneven temperature inside the kiln furnace and the melting quality of the glass liquid in the kiln furnace. Utility Model Content

[0004] The utility model aims to provide a furnace wall cooling device for a kiln furnace, so as to improve the uniformity of cooling the furnace wall, increase the life of the pool wall bricks and the melting quality of the glass liquid.

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

[0006] The furnace wall cooling device of the kiln furnace comprises:

[0007] A pressure-equalizing air box, wherein the pressure-equalizing air box is provided with a plurality of pressure-equalizing air outlets;

[0008] An air supply pipeline, the outlet end of which is connected to the pressure equalizing air box;

[0009] A first air supply component, the first air supply component is arranged in the air supply pipeline, and is used to deliver gas to the pressure equalizing bellows;

[0010] The second air supply assembly is provided with a plurality of the second air supply assemblies, and the plurality of the second air supply assemblies are correspondingly connected with the plurality of the equalizing pressure air outlets; the air outlets of the plurality of the second air supply assemblies are dispersedly arranged, and the wind flowing out of the air outlet of each of the second air supply assemblies forms an air outlet surface, and the air outlet surface can cover the entire furnace wall of the kiln furnace.

[0011] As an optional technical solution for a furnace wall cooling device, the second air supply component includes:

[0012] An air distribution pipeline, wherein the air distribution pipeline is passed through the pressure-equalizing air outlet of the pressure-equalizing air box, and the wind blown out by a plurality of the air distribution pipelines forms the air outlet surface;

[0013] The second fan is arranged in the pressure-equalizing wind box, and the air outlet of the second fan is connected to the inlet end of the air distribution pipeline.

[0014] As an optional technical solution for a furnace wall cooling device, the second air supply component includes:

[0015] A swing driving member, wherein the output end of the swing driving member is drivingly connected to the outlet end of the air distribution pipeline and drives the outlet end of the air distribution pipeline to swing in an up-and-down direction;

[0016] And / or, a plurality of the second air supply components are arranged at intervals along the left-right direction.

[0017] As an optional technical solution for a furnace wall cooling device, the second air supply component includes:

[0018] An adjusting member, one end of which is rotatably disposed at the outlet end of the air distribution duct and can swing between a first position and a second position. During the process of the adjusting member swinging from the first position to the second position, the air outlet width of the air distribution duct decreases along the left-right direction.

[0019] As an optional technical solution for a furnace wall cooling device, the second air supply component includes:

[0020] A guide rail is arranged at the outlet end of the air distribution pipeline, and the adjustment member is slidably arranged on the guide rail.

[0021] As an optional technical solution for a furnace wall cooling device, at least a portion of the air distribution pipeline is a hose.

[0022] As an optional technical solution for a furnace wall cooling device, the furnace wall cooling device includes a surface cooler and a heat exchanger, both of which are arranged in the air supply pipeline, and the surface cooler and the heat exchanger are used together to adjust the temperature of the gas entering the equalizing pressure wind box.

[0023] As an optional technical solution for a furnace wall cooling device, the furnace wall cooling device includes a temperature sensor, which is arranged at one end of the air supply pipeline close to the pressure equalizing wind box, and is used to measure the gas temperature in the air supply pipeline.

[0024] As an optional technical solution for a furnace wall cooling device, the furnace wall cooling device includes a pressure sensor, which is arranged in the pressure equalizing wind box and is used to measure the gas pressure in the pressure equalizing wind box.

[0025] As an optional technical solution for a furnace wall cooling device, the furnace wall cooling device includes a temperature detection device and a controller, the controller is communicatively connected to the temperature detection device, and the controller is communicatively connected to the second air supply component; a plurality of the temperature detection devices are dispersedly arranged and correspond one-to-one with a plurality of the second air supply components, and a plurality of the temperature detection devices can detect the temperature at different positions of the furnace wall.

[0026] The beneficial effects of the utility model are:

[0027] The utility model provides a furnace wall cooling device for a kiln furnace. The furnace wall cooling device for the kiln furnace is configured with a first air supply component and a second air supply component, so that the pressure of the gas entering the pressure equalizing bellows is adjustable, and the second air supply component can independently control the wind speed, thereby facilitating the control of the gas flow rate blown out from the second air supply component, and the wind flowing out through the air outlet of the second air supply component covers the furnace wall of the entire kiln furnace, so that all parts of the entire furnace wall can be effectively cooled, thereby improving the uniformity of cooling the furnace wall, and increasing the life of the pool wall bricks and the melting quality of the glass liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a furnace wall cooling device of a kiln furnace in an embodiment of the utility model;

[0029] Figure 2 It is a partial structural schematic diagram of a furnace wall cooling device of a kiln furnace in an embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the air distribution pipeline in the embodiment of the utility model;

[0031] Figure 4 It is a schematic diagram of the partial structure of the kiln furnace in the embodiment of the utility model.

[0032] In the figure:

[0033] 1000, kiln furnace; 1100, furnace wall; 1110, first area; 1120, second area; 1130, third area; 1140, fourth area; 1200, electrode; 1300, temperature measuring point;

[0034] 100. Pressure equalizing bellows;

[0035] 200. Air supply pipeline;

[0036] 300, first air supply assembly;

[0037] 400, second air supply assembly; 410, air distribution pipeline; 4101, first pipe; 4102, second pipe; 4103, third pipe; 411, left side wall; 412, right side wall; 413, lower side wall; 414, adjustment member; 415, guide rail; 420, second fan; 430, swing drive member;

[0038] 510, surface cooler; 511, first water inlet pump; 512, first water inlet pipeline; 513, first water return pipeline; 514, first water return regulating valve;

[0039] 520, heat exchanger; 521, second water inlet pump; 522, second water inlet pipeline; 523, second water return pipeline; 524, second water return regulating valve;

[0040] 530, temperature sensor; 540, pressure sensor;

[0041] 550. Temperature detection component; 560. Primary filter. DETAILED DESCRIPTION

[0042] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] 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.

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] like Figures 1 to 4 As shown, the present embodiment provides a furnace wall cooling device, which comprises an equalizing pressure wind box 100, an air supply pipeline 200, a first air supply assembly 300 and a second air supply assembly 400, wherein the equalizing pressure wind box 100 is provided with a plurality of equalizing pressure air outlets; the outlet end of the air supply pipeline 200 is connected with the equalizing pressure wind box 100; the first air supply assembly 300 is arranged in the air supply pipeline 200, and is used to transport gas to the equalizing pressure wind box 100; a plurality of second air supply assemblies 400 are provided, and the air inlets of the plurality of second air supply assemblies 400 are respectively connected with the plurality of equalizing pressure air outlets; the air outlets of the plurality of second air supply assemblies 400 are dispersedly arranged, and the wind flowing out of the air outlets of each second air supply assembly 400 forms an air outlet surface, and the air outlet surface can cover the furnace wall 1100 of the entire furnace 1000. The air outlet surface is the intersection of the air flowing out of the air outlets of each second air supply assembly 400 and the plane where the furnace wall 1100 is located.

[0047] The above arrangement, through the first air supply component 300 and the second air supply component 400, makes the pressure of the gas entering the pressure equalizing bellows 100 adjustable, and the wind speed of each second air supply component 400 can be controlled individually, so as to facilitate the control of the gas flow blown out from each second air supply component 400. The wind flowing out through the air outlet of the second air supply component 400 covers the furnace wall 1100 of the entire kiln furnace 1000, so that all parts of the entire furnace wall 1100 can be cooled, thereby improving the uniformity of cooling the furnace wall 1100, and increasing the life of the pool wall bricks and the melting quality of the glass liquid.

[0048] In some embodiments, the second air supply assembly 400 includes a branch air duct 410 and a second fan 420. The branch air duct 410 is arranged at the pressure equalizing air outlet of the pressure equalizing wind box 100, and the wind blown out by several branch air ducts 410 forms an air outlet surface; the second fan 420 is arranged in the pressure equalizing wind box 100, and the air outlet of the second fan 420 is connected to the inlet end of the branch air duct 410. The outlet end of the branch air duct 410 is rectangular. This arrangement enables the second fan 420 to extract the gas in the pressure equalizing wind box 100 and discharge it to the furnace wall 1100 of the kiln furnace 1000 through the branch air duct 410; in addition, since the second fan 420 is located in the pressure equalizing wind box 100, it also helps to reduce its own temperature and improve its service life. Among them, the second fan 420 can be a variable frequency fan. The frequency of the second fan 420 is between 5Hz and 50Hz.

[0049] The second air supply assembly 400 includes a swing drive member 430, the output end of the swing drive member 430 is connected to the outlet end of the air distribution pipeline 410 by transmission, and drives the outlet end of the air distribution pipeline 410 to swing in the up-down direction. Exemplarily, the swing drive member 430 includes a servo motor, the output end of the air distribution pipeline 410 is fixed to the output end of the servo motor, and the output end of the servo motor reciprocates between the first angle and the second angle, so that the air outlet direction of the air distribution pipeline 410 swings up and down, and then the wind blown out of the air distribution pipeline 410 forms a rectangular surface on the furnace wall 1100. Among them, the length of the rectangular surface in the up-down direction is greater than the width in the left-right direction. In other embodiments, the swing drive member 430 includes a servo motor and a cam provided at the output end of the servo motor, and the outlet end of the air distribution pipeline 410 is provided with a slider, which slides on the base in the up-down direction, and one end of the connecting rod is hinged to the slider, and the other end is hinged to the cam. During the rotation process of the servo motor, the air distribution pipeline 410 is driven to swing up and down by the action of the cam, the connecting rod and the slider.

[0050] With the aid of the above structure, the height of the air outlet of the air distribution duct 410 in the vertical direction can be smaller than the height of the furnace wall 1100 of the kiln furnace 1000, thereby helping to reduce the cost of the air distribution duct 410 and increase the air outlet speed.

[0051] In this embodiment, a plurality of second air supply components 400 are arranged at intervals along the left-right direction. With the arrangement of the above structure, a plurality of air distribution pipes 410 of a plurality of second air supply components 400 form a plurality of rectangular surfaces to form a rectangular air outlet surface.

[0052] In some embodiments, the furnace wall 1100 is divided into four areas in the left-right direction, which are defined as the first area 1110, the second area 1120, the third area 1130 and the fourth area 1140. The first area 1110, the second area 1120, the third area 1130 and the fourth area 1140 are arranged in the left-right direction, and four second air supply components 400 are provided, and the four second air supply components 400 correspond to the four areas respectively. The above arrangement realizes separate control of each area, which is conducive to achieving uniform temperature of the furnace wall 1100.

[0053] In order to ensure that the air outlet surface can fully cover the furnace wall 1100, in this embodiment, the second air supply assembly 400 includes an adjustment member 414, one end of which is rotatably arranged at the outlet end of the air distribution duct 410, and can swing between a first position and a second position. In the process of the adjustment member 414 swinging from the first position to the second position, the air outlet width of the air distribution duct 410 decreases along the left and right directions. In this embodiment, the outlet end of the air distribution duct 410 includes a left side wall 411, a right side wall 412, an upper side wall and a lower side wall 413 connected in sequence around the axis of the outlet end, the left side wall 411 and the right side wall 412 are arranged opposite to each other, and the upper side wall and the lower side wall 413 are arranged opposite to each other, wherein the distance between the left side wall 411 and the right side wall 412 gradually increases in the direction close to the furnace wall 1100. The above arrangement can adjust the opening of the outlet end of the air distribution duct 410 in the left and right directions, and further adjust the width of the rectangular surface formed by the blown wind on the furnace wall 1100, ensuring that several rectangular surfaces fully cover the furnace wall 1100 and avoiding overlap between adjacent rectangular surfaces as much as possible.

[0054] In some embodiments, there are two adjusting members 414, which are located on the left and right sides of the outlet end of the air distribution duct 410, and are respectively hinged to the left side wall 411 and the right side wall 412, so that the two adjusting members 414 can move closer to or farther from each other during rotation. The provision of the two adjusting members 414 increases the adjustment range of the air outlet and makes the use range wider; at the same time, it is convenient for assembly and debugging, so that the wind blown out by the second air supply assembly 400 can cover the furnace wall 1100. Among them, when the two adjusting members 414 are in the first position, they fit the left side wall 411 and the right side wall 412 respectively. When the adjusting members 414 are in the second position, the distance between the ends of the two adjusting members 414 is approximately the same as the width of the main line of the air distribution duct 410.

[0055] The second air supply assembly 400 includes a guide rail 415, which is disposed at the outlet end of the air distribution pipeline 410, and an adjustment member 414 is slidably disposed on the guide rail 415. The guide rail 415 is disposed on the lower side wall 413. The guide rail 415 can be an arc-shaped hole opened on the lower side wall 413, and the adjustment member 414 is rotatably disposed on the left side wall 411 or the right side wall 412 through a rotating pin. A sliding pin is connected to the middle position of the adjustment member 414, and the sliding pin passes through the arc-shaped hole and can slide in the arc-shaped hole. The sliding pin rotates around the rotating pin during the sliding process.

[0056] The sliding pin includes an optical axis and a stud disposed at one end of the optical axis, the diameter of the stud is smaller than the diameter of the optical axis, the stud passes through the arc hole and is screwed with the nut. With the arrangement of the above structure, the sliding pin can be locked to the lower side wall 413. In other embodiments, the sliding pin includes an optical axis and studs disposed at both ends of the optical axis, arc holes are disposed on both the upper side wall and the lower side wall 413, and the stud can pass through two corresponding arc holes and be screwed with two nuts.

[0057] In some embodiments, the adjusting member 414 can be rotatably disposed between the upper side wall and the lower side wall 413. The adjusting member 414 is provided with two sliding pins, and both the upper side wall and the lower side wall 413 are provided with arc holes. The two sliding pins of the adjusting member 414 can be slidably disposed in the corresponding arc holes, and can be locked with the corresponding upper side wall and the lower side wall 413. The outlet end of the air distribution duct 410 is a duckbill flat mouth structure. The adjusting member 414 is plate-shaped.

[0058] In some embodiments, at least part of the air distribution pipeline 410 is a hose. The air distribution pipeline 410 includes a first tube 4101, a second tube 4102, and a third tube 4103 connected between the first tube 4101 and the second tube 4102, and the third tube 4103 is a hose. The first tube 4101 passes through the pressure equalizing air outlet, one end is connected to the air outlet of the second fan 420, and the other end is connected to the third tube 4103. In other embodiments, the third tube 4103 can be a corrugated tube.

[0059] In order to adjust the temperature of the gas in the pressure-equalizing wind box 100 to ensure the cooling effect on the furnace wall 1100, the furnace wall cooling device includes a surface cooler 510 and a heat exchanger 520. The surface cooler 510 and the heat exchanger 520 are both arranged in the air supply pipeline 200. The surface cooler 510 and the heat exchanger 520 cooperate to adjust the temperature of the gas entering the pressure-equalizing wind box 100. Exemplarily, the first water inlet pump 511 delivers water of a first temperature to the surface cooler 510 through the first water inlet pipeline 512, and the surface cooler 510 outputs water of a second temperature through the first water return pipeline 513. The first water return pipeline 513 is provided with a first water return regulating valve 514.

[0060] The second water inlet pump 521 delivers water of the third temperature to the heat exchanger 520 through the second water inlet pipeline 522, and the heat exchanger 520 outputs water of the fourth temperature through the second water return pipeline 523. The second water return pipeline 523 is provided with a second water return regulating valve 524. The temperature of the water delivered by the first water inlet pump 511 is 13°C, and the temperature of the water in the first water outlet pipe is 19°C; the temperature of the water delivered by the second water inlet pump 521 is 60°C, and the temperature of the water in the second water outlet pipe is 45°C.

[0061] The first fan is located downstream of the surface cooler 510 .

[0062] In order to accurately ensure the gas temperature in the pressure-equalizing wind box 100, in some embodiments, the furnace wall cooling device includes a temperature sensor 530, which is arranged at one end of the air supply pipeline 200 close to the pressure-equalizing wind box 100, and the temperature sensor 530 is used to measure the gas temperature in the air supply pipeline 200. With the above arrangement, the cooling capacity of the second blowing assembly can be easily calculated on the basis that the amount of gas blown out from the second air supply assembly 400 is fixed.

[0063] In order to accurately ensure the gas pressure in the pressure-equalizing wind box 100, in some embodiments, the furnace wall cooling device includes a pressure sensor 540, which is arranged in the pressure-equalizing wind box 100 and is used to measure the gas pressure in the pressure-equalizing wind box 100. With the above arrangement, the gas flow rate blown out can be controlled by controlling the rotation speed of the second fan 420 during the operation of the second air supply assembly 400.

[0064] In order to improve the degree of automation of cooling the furnace wall 1100, the furnace wall cooling device of the kiln furnace includes a temperature detection component 550 and a controller, the controller is connected to the temperature detection component 550 in communication, and the controller is connected to the second air supply component 400 in communication; the temperature detection components 550 are dispersedly arranged and correspond to a plurality of second air supply components 400 one by one, and a plurality of temperature detection components 550 can detect the temperature at different positions of the kiln furnace 1000. The controller can receive the detected temperature detected by the temperature detection component 550, and can control the air output of the corresponding second air supply component 400 based on the detected temperature. The temperature detection component 550 can be an infrared thermometer. The above arrangement enables the controller to control the corresponding second air supply component 400 according to the local temperature of the furnace wall 1100, so that the temperature of the local area can be controlled separately, thereby improving the cooling effect of the furnace wall 1100 and ensuring the uniformity of the temperature of the furnace wall 1100. For example, for the area with high temperature of the furnace wall 1100, the rotation speed of the second fan 420 in the second air supply assembly 400 is fast, and the swing frequency of the swing driving member 430 is fast.

[0065] It should be noted that the furnace wall 1100 is provided with electrodes 1200 for heating, and the temperature measuring points 1300 are located between adjacent electrodes 1200 .

[0066] Wherein, each second air supply assembly 400 corresponds to two temperature detection members 550, and the two temperature detection members 550 are arranged at intervals in the up-down direction. The above arrangement enables the two temperature detection members 550 to measure two temperature measuring points 1300 arranged at intervals in the up-down direction on the furnace wall 1100. The average value of the temperature measured by the two temperature detection members 550 is used as the detection temperature, so that the detection result is more accurate. In other embodiments, the temperature values ​​detected by the two temperature detection members 550 can also be used as two detection temperatures to control the movement frequency and the residence time of the air outlet of the second air supply assembly 400 at a certain position. In other words, when the temperature detected by the upper temperature detection member 550 is greater than the temperature detected by the lower temperature detection member 550, the air outlet of the second air supply assembly 400, in the process of swinging up and down, the time it stays at the lower limit position is greater than the time it stays at the upper limit, so that the temperature of the upper and lower sides of the furnace wall 1100 is as uniform as possible.

[0067] In some embodiments, the controller is connected to the pressure sensor 540 for communication, and the controller is connected to the first air supply assembly 300 for communication; the pressure sensor 540 detects the pressure value in the pressure equalizing bellows 100, and the controller can receive the pressure value and control the air volume of the first air supply assembly 300 based on the pressure value. With the above arrangement, the pressure in the pressure equalizing bellows 100 is kept within a fixed range.

[0068] The first air supply assembly 300 includes a first fan, wherein the first fan may be a variable frequency fan with a frequency of 5 Hz to 50 Hz.

[0069] A primary filter 560 is provided at the air inlet of the air supply pipeline 200. The primary filter 560 can filter the air supply particles to ensure the air supply quality. The primary filter 560 is located upstream of the heat exchanger 520. The first fan is located inside the air supply pipeline 200 and downstream of the primary filter 560.

[0070] The controller may be a PLC system.

[0071] When in use, firstly, the temperature of the air sent to the pressure equalizing wind box 100 is adjusted, including the following steps:

[0072] The supply air temperature of the first air supply component 300 is set as needed, and the PLC system compares the set value with the measured value (measured by the temperature sensor 530). The first deviation value (set value - measured value) is calculated by the PLC system. Based on the first deviation value, the opening of the first return water regulating valve 514 and the second return water regulating valve 524 is controlled, thereby controlling the temperature of the air entering the equalizing pressure wind box 100 to keep the supply air temperature stable.

[0073] Then, the pressure of the air sent to the pressure equalizing air box 100 is adjusted by the first air supply assembly 300, which includes the following steps:

[0074] The gas pressure in the pressure equalizing bellows 100 is set as needed, and the PLC system compares the set value with the measured value (measured by the pressure sensor 540). The second deviation value (set value - measured value) is calculated by the PLC system, which controls the rotation speed of the first fan based on the second deviation value to keep the pressure of the pressure equalizing bellows 100 stable.

[0075] Through the above two steps, the pressure and temperature in the pressure equalizing bellows 100 are stabilized.

[0076] Finally, the temperature of the furnace wall 1100 is controlled by the second air supply assembly 400 .

[0077] There are four variable frequency fans in the pressure equalizing wind box 100, corresponding to the four areas of the furnace wall 1100 respectively. By adjusting the adjustment member 414 at the outlet end of the air distribution pipeline 410, the air blown out from the outlet end of the air distribution pipeline 410 can be prevented from overlapping on the furnace wall 1100 or the formation of dead zones.

[0078] The surface temperature of the furnace wall 1100 is measured by an infrared thermometer, and the PLC system compares the measured value with the set value. The third deviation value (set value - measured value) is calculated by the PLC system. Based on the third deviation value, the rotation speed of the second fan 420 is controlled to control the air supply to the furnace wall 1100, thereby achieving the purpose of controlling the surface temperature of the furnace wall 1100.

[0079] At the same time, when the third deviation value is larger, the frequency of the up and down swinging of the air outlet of the second air supply component 400 is faster; when the third deviation value is smaller, the frequency of the swinging is slower.

[0080] When the infrared thermometer detects that the temperature of a part of the furnace wall 1100 is abnormal, an alarm can be issued through the PLC system, and the angle of the air outlet of the second air supply assembly 400 can be adjusted through the swing drive 430 to deal with the abnormal part. When the local temperature is high, the air outlet of the second air supply assembly 400 locks the area, and the frequency of the second fan 420 corresponding to the area is adjusted to the maximum (50HZ) for rapid cooling. When the temperature returns to the normal range, the air outlet of the second air supply assembly 400 returns to normal operation. When the local temperature is low, the swing drive 430 is controlled to adjust the angle of the air outlet of the second air supply assembly 400 and / or the speed of the second fan 420, so that the cooling air can avoid the area. The above steps ultimately achieve the consistency of the surface temperature of the furnace wall 1100.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A furnace wall cooling device, characterized in that: include: A pressure equalizing wind box (100), wherein the pressure equalizing wind box (100) is provided with a plurality of pressure equalizing air outlets; An air supply pipeline (200), wherein the outlet end of the air supply pipeline (200) is in communication with the pressure equalizing wind box (100); A first air supply component (300), the first air supply component (300) being arranged on the air supply pipeline (200) and being used for delivering gas to the pressure equalizing bellows (100); A second air supply component (400), wherein a plurality of the second air supply components (400) are provided, and the plurality of the second air supply components (400) are correspondingly connected to the plurality of the equalizing pressure air outlets; the air outlets of the plurality of the second air supply components (400) are dispersedly arranged, and the wind flowing out of the air outlets of each of the second air supply components (400) forms an air outlet surface, and the air outlet surface can cover the furnace wall (1100) of the entire kiln furnace (1000).

2. The furnace wall cooling device according to claim 1, characterized in that: The second air supply component (400) comprises: An air distribution pipeline (410), wherein the air distribution pipeline (410) is passed through the pressure-equalizing air outlet of the pressure-equalizing wind box (100), and the air blown out by a plurality of the air distribution pipelines (410) forms the air outlet surface; A second fan (420), wherein the second fan (420) is disposed in the pressure equalizing wind box (100), and an air outlet of the second fan (420) is connected to an inlet end of the air distribution pipeline (410).

3. The furnace wall cooling device according to claim 2, characterized in that: The second air supply component (400) comprises: A swing driving member (430), wherein an output end of the swing driving member (430) is drivingly connected to an outlet end of the air distribution pipeline (410), and drives the outlet end of the air distribution pipeline (410) to swing in an up-and-down direction; And / or, a plurality of the second air supply components (400) are arranged at intervals along the left-right direction.

4. The furnace wall cooling device according to claim 2, characterized in that: The second air supply component (400) comprises: An adjusting member (414), one end of which is rotatably disposed at the outlet end of the air distribution duct (410) and is capable of swinging between a first position and a second position. During the process of the adjusting member (414) swinging from the first position to the second position, the air outlet width of the air distribution duct (410) decreases along the left-right direction.

5. The furnace wall cooling device according to claim 4, characterized in that: The second air supply component (400) comprises: A guide rail (415) is provided at the outlet end of the air distribution pipeline (410), and the adjustment member (414) is slidably provided on the guide rail (415).

6. The furnace wall cooling device according to claim 3, characterized in that: At least a portion of the air distribution pipeline (410) is a hose.

7. The furnace wall cooling device according to any one of claims 1 to 6, characterized in that: The kiln furnace wall cooling device comprises a surface cooler (510) and a heat exchanger (520), wherein the surface cooler (510) and the heat exchanger (520) are both arranged in the air supply pipeline (200), and the surface cooler (510) and the heat exchanger (520) are used together to adjust the temperature of the gas entering the equalizing pressure wind box (100).

8. The furnace wall cooling device according to any one of claims 1 to 6, characterized in that: The kiln furnace wall cooling device comprises a temperature sensor (530), wherein the temperature sensor (530) is arranged at one end of the air supply pipeline (200) close to the pressure equalizing wind box (100), and the temperature sensor (530) is used to measure the gas temperature in the air supply pipeline (200).

9. The furnace wall cooling device according to any one of claims 1 to 6, characterized in that: The kiln furnace wall cooling device comprises a pressure sensor (540), wherein the pressure sensor (540) is arranged in the pressure equalizing wind box (100), and the pressure sensor (540) is used to measure the gas pressure in the pressure equalizing wind box (100).

10. The furnace wall cooling device according to any one of claims 1 to 6, characterized in that: The kiln furnace wall cooling device comprises a temperature detection component (550) and a controller, wherein the controller is communicatively connected to the temperature detection component (550), and the controller is communicatively connected to the second air supply component (400); a plurality of the temperature detection components (550) are dispersedly arranged and correspond one-to-one with a plurality of the second air supply components (400), and a plurality of the temperature detection components (550) can detect the temperature at different positions of the furnace wall (1100).

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