Intelligent gas distribution system and process for circulating fluidized bed

Abstract

The invention relates to the technical field of circulating fluidized beds, and discloses an intelligent gas distribution system for a circulating fluidized bed, which comprises a first mounting frame, an air duct fixedly welded at the bottom end of the first mounting frame, a base fixedly welded at the bottom of the air duct, and a second mounting frame fixedly welded at the top of the first mounting frame; the supporting mechanism is arranged on the base, the air duct and the first mounting frame, and the supporting mechanism is used for mounting the air distribution plate and the air cap through a mounting frame in the supporting mechanism; the supporting mechanism is arranged, the mounting frame moves upwards, so that the multiple air distribution plates on the mounting frame move upwards, the air distribution plates are connected with the air cap, when the air cap needs to be replaced, the first supporting block and the second supporting block cancel supporting on the supporting plate, the supporting plate is driven to descend through the gravity of the supporting plate, the air distribution plates are separated from the air cap, and the air cap is replaced. The fixing of the sealing piece and the second mounting frame is omitted, the mounting plate is pulled out, the abraded or blocked air cap can be replaced, the air cap and the air distribution plate can be conveniently connected, and the air cap is more convenient to replace.

Description

Technical Field

[0001] The present invention relates to the technical field of circulating fluidized beds, and in particular to an intelligent gas distribution system and process for a circulating fluidized bed. Background Art

[0002] A circulating fluidized bed (CFB) is a device used for combustion, reaction, and separation processes. The core of a CFB is fluidization technology, which refers to the phenomenon in which solid particles exhibit a fluid-like flow state under the action of a fluid (usually a gas or liquid). In a CFB, solid particles (such as fuel and catalysts) are lifted by a high-speed airflow and suspended in the bed, forming a fluidized state. An air distribution system is installed at the bottom of the CFB furnace. Air enters the furnace through the air chamber, air distribution plate, air hood, and other mechanisms in the air distribution system, distributing air to the fuel particles inside the furnace as they burn. In the patent document with application number 202210932921.6 and titled "Circulating fluidized bed boiler air distribution plate resistance uniformity processing structure and its processing method", it is recorded that: the structure mainly includes a circulating fluidized bed primary air distribution system, an online pressure monitoring system under the air distribution plate, and an umbrella-shaped air curtain pressure flow regulation and control system; after the primary air enters the wind chamber, it passes through the air distribution plate and the wind cap to make the bed material above the air distribution plate enter a fluidized state; the pressure online monitoring system divides the area below the air distribution plate into uniformly sized areas in a honeycomb shape and installs pressure measuring points, and monitors the pressure values of each measuring point area below the air distribution plate in real time; when the pressure deviation of each area below the air distribution plate reaches the set threshold, the control system automatically adjusts the umbrella-shaped air curtain pressure flow according to the unbalanced pressure measurement results, and increases the air curtain blowing volume in the area with higher pressure below the air distribution plate.

[0003] However, when the air distribution plates and hoods in the air distribution system are in use, they are exposed to long-term erosion by high-temperature particles. Especially under high-ash fuel conditions, the wear rate is accelerated, which can easily lead to perforation or deformation. In addition, fine particle fuel or sticky materials can easily clog the small holes in the hood, reducing the air distribution efficiency. In these cases, it is inconvenient for staff to replace the air distribution plates and hoods. Summary of the Invention

[0004] The object of the present invention is to provide an intelligent gas distribution system for a circulating fluidized bed to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An intelligent air distribution system for a circulating fluidized bed comprises a first mounting frame, an air duct is welded and fixed to the bottom end of the first mounting frame, a base is welded and fixed to the bottom of the air duct, and a second mounting frame is welded and fixed to the top end of the first mounting frame; A plurality of air distribution plates are provided inside the first installation frame, and a plurality of air hoods are provided inside the second installation frame; A supporting mechanism, the supporting mechanism being arranged on the base, the air duct and the first mounting frame, and the supporting mechanism being used to mount the air distribution plate and the air hood via a mounting frame therein; A fixing mechanism, the fixing mechanism being arranged on the air distribution plate, and the fixing mechanism fixing the air distribution plate on the mounting frame through a moving block and a fixing column therein; The disassembly and assembly mechanism is arranged on one side of the first installation frame, and the disassembly and assembly mechanism disassembles and assembles the air distribution plate through the movable frame thereon.

[0006] Optionally, the support mechanism includes several first cylinders, a first support block, a second support block, a fixing rod, several limiting cylinders, a connecting rod, a support plate, several movable grooves, a mounting bracket, a seal and a mounting plate, several first cylinders are fixedly mounted on the top of the base, the first support block is fixedly mounted on the output end of the first cylinder, the fixing rod is fixedly mounted on one side of the first support block, the second support block is fixedly mounted on one end of the fixing rod, several limiting cylinders are fixedly mounted on both sides of the inner wall of the air duct, the connecting rod is slidably mounted on the inner wall of the corresponding limiting cylinder, the bottom end of the connecting rod extends to the outside of the bottom end of the air duct, the support plate is fixedly mounted on the bottom end of the connecting rod, the support plate is located at the top of the corresponding first support block, several movable grooves are opened on both sides of the inner wall of the first mounting frame, the mounting bracket is slidably mounted on the corresponding movable groove wall, the top end of the connecting rod is fixedly mounted on the bottom of the corresponding mounting bracket, the seal is fixedly mounted at the mounting port on one side of the second mounting frame by bolts, and the mounting plate is fixedly mounted on one side of the seal.

[0007] Optionally, the mounting plate is located inside the second mounting frame, and a plurality of mounting holes are provided on the mounting plate. The hood is fixed to the inner wall of the mounting hole by screws. The mounting plate is located on the top of the mounting frame and the air distribution plate, and a plurality of plug holes are provided on the top of the air distribution plate. The mounting holes on the mounting plate correspond to the positions of the plug holes on the air distribution plate.

[0008] Optionally, a plurality of slide rails are fixedly installed on the top of the base, and a slide groove is provided at the bottom end of the first support block and the second support block. The first support block and the second support block are slidably installed on the slide rails through the slide groove at the bottom. The first support block, the second support block and one end of the support plate are all chamfered, and the connecting rod extends to the outer wall outside the bottom end of the air duct and a sealing plate is fixedly installed.

[0009] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

[0010] Optionally, the push plate is located on a side corresponding to the baffle, and chamfers are provided on one end of the push plate and the baffle, a plurality of protrusions are fixedly installed on one side of the inner wall of the fixed frame, and one side of the push plate is slidably installed on the corresponding protrusion, an insertion interface is provided in the middle of the top of the air distribution plate, and a plurality of first fixing holes are provided on both sides of the inner wall of the insertion interface, the fixing column is slidably installed on the inner wall corresponding to the first fixing hole, and a plurality of second fixing holes are provided on both sides of the mounting frame, and the position of the second fixing hole corresponds to the position of the first fixing hole.

[0011] Optionally, a movable frame is fixedly mounted on one side of the first mounting frame, sliding openings are opened on both sides of the movable frame, a first motor is fixedly mounted on one side of the movable frame, an output end of the first motor extends to the inside of one of the sliding openings, a first screw rod is fixedly mounted on the output end of the first motor, a sliding frame is slidably mounted on the inner wall of the sliding opening, the sliding frame is threadedly connected to the outer wall of the first screw rod through an internal threaded hole on one side of the sliding frame, a second motor is fixedly mounted on one side of the sliding frame, the output end of the second motor extends to the inside of the sliding frame, a second screw rod is fixedly mounted on the output end of the second motor, a connecting rod is slidably mounted on the inner wall of the sliding frame, and the connecting rod is threadedly connected to the outer wall of the second screw rod through an internal threaded hole on one side of the sliding frame.

[0012] Optionally, the disassembly and assembly mechanism includes a moving frame, several electromagnets, several electric push rods, a moving housing, a third motor, a rotating part and a disassembly head, the moving frame is fixedly installed at one end of the connecting rod, several electromagnets are fixedly installed at the top of the moving frame, several electric push rods are fixedly installed at the inner wall of the moving frame, the moving housing is fixedly installed at the output end of the electric push rod, the top of the moving housing extends through the hole at the top of the moving frame to the outside of the top of the moving frame, the third motor is fixedly installed at the inner wall of the moving housing, the rotating part is rotatably installed at the top of the moving housing, the rotating part is fixedly installed at the output end of the third motor, the disassembly head is fixedly installed at the top of the rotating part, the disassembly head corresponds to the position of the rotating cylinder on the air distribution plate, and the electromagnet corresponds to the position of the positioning cylinder on the air distribution plate.

[0013] Optionally, a furnace body is welded and fixed on the top of the second mounting frame, a loading port is fixedly installed on one side of the furnace body, an air inlet is fixedly installed on one side of the air duct, and a sealing door is fixedly installed on the opening on one side of the first mounting frame by bolts, and the sealing door corresponds to the position of the movable frame.

[0014] A process for using an intelligent air distribution system for a circulating fluidized bed comprises the following steps: S1. When distributing air to the furnace body, the fan connected to the air inlet on one side of the air duct starts to supply air into the air duct. The air flows through the bottom of the air distribution plate into the hood and is blown out through the air outlet of the hood. S2. When the hood needs to be replaced, the first and second support blocks cancel their support for the support plate, and the support plate is driven down by its own gravity, so that the air distribution plate is separated from the hood, the seal is fixed to the second mounting frame, and the mounting plate is pulled out, so that the worn or clogged hood can be replaced; S3. When replacing the air distribution plate, the staff controls the movable frame to extend into the first installation frame and move it to the bottom of the air distribution plate to be replaced. The installation frame descends, the electromagnet is energized to adsorb the positioning cylinder, and at the same time the disassembly head is inserted into one end of the corresponding rotating cylinder. The disassembly head rotates, driving the rotating cylinder to rotate forward and backward, thereby driving the locking screw to rotate forward and backward to install or disassemble the air distribution plate.

[0015] The present invention has at least the following beneficial effects: (1) This solution sets a support mechanism, and the mounting frame moves upward, thereby causing several air distribution plates on the mounting frame to move upward. The plug holes on the air distribution plates are inserted into the bottom of the corresponding hoods, so that the air distribution plates and the hoods are connected. When the hood needs to be replaced, the first support block and the second support block cancel the support for the support plate, and the support plate is driven down by its own gravity, so that the air distribution plate is separated from the hood, the fixing of the seal and the second mounting frame is cancelled, and the mounting plate is pulled out. The worn or blocked hood can be replaced, which facilitates the connection between the hood and the air distribution plate, making the replacement of the hood more convenient; (2) In this solution, the rotating cylinder is rotated to drive the locking screw to rotate, thereby driving the push plate to move up and down. When the push plate moves upward, it pushes the baffle plate from the side to move, thereby causing the moving block to move sideways. The fixing column extends from the first fixing hole and is inserted into the second fixing hole corresponding to the side of the mounting frame, so that the air distribution plate can be fixed on the mounting frame. The push plate moves downward to cancel the support for the moving block. The spring rebounds and supports the moving block to return to its original position. The fixing column disengages from the second fixing hole, so that the air distribution plate can be removed, making the installation and removal of the air distribution plate more convenient. (3) The movable frame of this solution extends into the interior of the first installation frame and moves to the bottom of the air distribution plate that needs to be replaced. The installation frame descends, so that the positioning cylinder at the bottom of the air distribution plate is inserted into the electromagnet. The electromagnet is energized to adsorb the positioning cylinder. At the same time, the disassembly head is inserted into one end of the corresponding rotating cylinder. The third motor starts to drive the disassembly head to rotate, and the electric push rod starts to drive the movable shell up and down, which can drive the rotating cylinder to rotate forward and reverse, thereby driving the locking screw to rotate forward and reverse, and the air distribution plate is installed or disassembled, further improving the efficiency of the staff in replacing the air distribution plate. (4) In this solution, the first motor starts to drive the first screw to rotate, and the first screw drives the sliding frame to move on the movable frame. The second motor starts to drive the second screw to rotate, thereby driving the connecting rod to move the position in the sliding frame. The staff can drive the moving frame to move the position through an external controller, making the replacement of the air distribution plate more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a diagram showing the installation of the hood of the present invention; Figure 3 This is the installation diagram of the air distribution plate of the present invention; Figure 4 This is an installation diagram of the mounting bracket of the present invention; Figure 5 This is a diagram of the first support block and the second support block of the present invention; Figure 6 This is a cross-sectional view of the air distribution plate of the present invention; Figure 7 The mobile frame diagram of the present invention; Figure 8 It is a cross-sectional view of the movable frame of the present invention; Figure 9 This is a diagram showing the connection between the hood and the mounting plate of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. First mounting frame; 1011. Moving groove; 101. Air duct; 102. Base; 103. Slide rail; 104. First cylinder; 105. First support block; 106. Second support block; 107. Mounting frame; 108. Limiting cylinder; 109. Connecting rod; 110. Support plate; 111. Sealing plate; 112. Fixing rod; 113. Second mounting frame; 114. Furnace body; 115. Sealing door; 2. Air distribution plate; 201. Connecting hole; 202. Connecting port; 203. First fixing hole; 204. Sealing element; 205. Mounting plate; 206. Air hood; 3. Fixing plate; 301. Positioning cylinder; 302, fixed frame; 303, limiting column; 304, spring; 305, moving block; 306, fixed column; 307, baffle; 308, bump; 309, locking screw; 310, rotating cylinder; 311, push plate; 4, moving frame; 401, sliding mouth; 402, first motor; 403, first screw rod; 404, sliding frame; 405, second motor; 406, second screw rod; 407, connecting rod; 5, moving frame; 501, electromagnet; 502, electric push rod; 503, moving housing; 504, third motor; 505, rotating part; 506, disassembly head. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1-9The present invention provides an intelligent air distribution system for a circulating fluidized bed, comprising a first installation frame 1, an air duct 101 being welded and fixed to the bottom end of the first installation frame 1, a base 102 being welded and fixed to the bottom end of the air duct 101, and a second installation frame 113 being welded and fixed to the top end of the first installation frame 1; a plurality of air distribution plates 2 being arranged inside the first installation frame 1, and a plurality of air hoods 206 being arranged inside the second installation frame 113; a supporting mechanism, wherein the supporting mechanism is arranged on the base 102, the air duct 101 and the first installation frame 1, and the supporting mechanism installs the air distribution plates 2 and the air hoods 206 through the mounting bracket 107 therein; a fixing mechanism, wherein the fixing mechanism is arranged on the air distribution plate 2, and the fixing mechanism fixes the air distribution plate 2 on the mounting bracket 107 through the moving block 305 and the fixing column 306 therein; and a disassembling mechanism, wherein the disassembling mechanism is arranged on the first installation frame. On one side of the mounting frame 1, the disassembly and assembly mechanism disassembles and assembles the air distribution plate 2 through the movable frame 5 thereon; by setting up a supporting mechanism, the mounting frame 107 moves upward, thereby causing several air distribution plates 2 on the mounting frame 107 to move upward, and the plug-in holes 201 on the air distribution plate 2 are inserted into the bottom of the corresponding wind hood 206, so that the air distribution plate 2 and the wind hood 206 are connected. When the wind hood 206 needs to be replaced, the first support block 105 and the second support block 106 cancel the support for the support plate 110, and the support plate 110 is driven to descend by its own gravity, so that the air distribution plate 2 is separated from the wind hood 206, and the fixation of the seal 204 and the second mounting frame 113 is cancelled, and the mounting plate 205 is pulled out, and the worn or blocked wind hood 206 can be replaced, which facilitates the connection between the wind hood 206 and the air distribution plate 2, making the replacement of the wind hood 206 more convenient.

[0020] In some embodiments, see Figure 4 、 Figure 5The supporting mechanism includes a plurality of first cylinders 104, a first supporting block 105, a second supporting block 106, a fixing rod 112, a plurality of limiting cylinders 108, a connecting rod 109, a supporting plate 110, a plurality of movable grooves 1011, a mounting frame 107, a sealing member 204 and a mounting plate 205. The plurality of first cylinders 104 are fixedly mounted on the top of the base 102, the first supporting block 105 is fixedly mounted on the output end of the first cylinder 104, the fixing rod 112 is fixedly mounted on one side of the first supporting block 105, and the first The second support block 106 is fixedly mounted on one end of the fixed rod 112, a plurality of limit cylinders 108 are fixedly mounted on both sides of the inner wall of the air duct 101, a connecting rod 109 is slidably mounted on the inner wall of the corresponding limit cylinder 108, and the bottom end of the connecting rod 109 extends to the outside of the bottom end of the air duct 101, a support plate 110 is fixedly mounted on the bottom end of the connecting rod 109, and the support plate 110 is located at the top of the corresponding first support block 105, a plurality of movable grooves 1011 are opened on both sides of the inner wall of the first installation frame 1, and the mounting frame 107 is slidably mounted on the corresponding movable groove 101 1 slot wall, the top of the connecting rod 109 is fixedly installed on the bottom of the corresponding mounting frame 107, the seal 204 is fixedly installed on the mounting opening on one side of the second mounting frame 113 by bolts, the mounting plate 205 is fixedly installed on one side of the seal 204, the mounting plate 205 is located inside the second mounting frame 113, a plurality of mounting holes are opened on the mounting plate 205, the hood 206 is fixedly installed on the inner wall of the mounting hole by screws, the mounting plate 205 is located on the top of the mounting frame 107 and the air distribution plate 2, and a plurality of plugs are opened on the top of the air distribution plate 2 The connection hole 201 and the mounting hole on the mounting plate 205 correspond to the position of the connection hole 201 on the corresponding air distribution plate 2; by setting the connecting rod 109 to connect the mounting frame 107, the movement of the support plate 110 can drive the mounting frame 107 to move up and down, and the first cylinder 104 drives the first support block 105 and the second support block 106 to move, which are inserted and supported at the bottom of the support plate 110, and support the support plate 110 and the connecting rod 109 to move upward, thereby driving the mounting frame 107 and the air distribution plate 2 thereon to move up and down.

[0021] In this example, the mounting plate 205 is used to mount the hood 206 and position the hood 206 above the air distribution plate 2 .

[0022] In some embodiments, see Figure 5, a plurality of slide rails 103 are fixedly installed on the top of the base 102, and a slide groove is provided at the bottom of the first support block 105 and the second support block 106. The first support block 105 and the second support block 106 are slidably installed on the slide rail 103 through the slide groove at the bottom. The first support block 105, the second support block 106 and one end of the support plate 110 are all chamfered, and the connecting rod 109 extends to the outer wall outside the bottom end of the air duct 101 and is fixedly installed with a sealing plate 111; by setting the slide rail 103, the first support block 105 and the second support block 106 can move more smoothly, and by setting the sealing plate 111, when the air distribution plate 2 and the wind hood 206 are fully installed, the sealing plate 111 is tightly attached to the bottom end of the air duct 101, and the connection between the connecting rod 109 and the air duct 101 is sealed.

[0023] In this example, several detection points can be set at 200mm-300mm of the air distribution plate 2 and the wind hood 206. The detection points are composed of high-temperature resistant wind pressure sensors, which can intelligently detect the air outlet conditions at various locations of the air distribution plate 2 and the wind hood 206 to detect the conditions of the air distribution plate 2 and the wind hood 206.

[0024] In some embodiments, see Figure 6The fixing mechanism includes a fixing plate 3, several positioning cylinders 301, a fixing frame 302, several limiting columns 303, a spring 304, a moving block 305, a fixing column 306, a baffle 307, a locking screw 309, a rotating cylinder 310 and a pushing plate 311. The fixing plate 3 is fixedly installed at the bottom of the air distribution plate 2, several positioning cylinders 301 are fixedly installed at the bottom end of the fixing plate 3, the fixing frame 302 is fixedly installed on both sides of the fixing plate 3, several limiting columns 303 are fixedly installed on one side of the inner wall of the fixing frame 302, the spring 304 is installed on the outer wall of the corresponding limiting column 303, and the moving block 305 is slidably installed on the limiting column 303. The outer wall, one end of the spring 304 is fixedly mounted on one side of the inner wall of the fixed frame 302, and the other end of the spring 304 is fixedly mounted on one side of the corresponding moving block 305, the fixed column 306 is fixedly mounted on one side of the moving block 305, the baffle 307 is fixedly mounted on the bottom of the moving block 305, a plurality of threaded holes are opened at the bottom end of the fixed frame 302, the locking screw 309 is threadedly connected to the inner wall of the threaded hole, the rotating cylinder 310 is fixedly mounted on the bottom end of the locking screw 309, the push plate 311 is rotatably mounted on the top end of the locking screw 309, the push plate 311 is located on the side of the corresponding baffle 307, and the push plate 311 and one end of the baffle 307 are opened with an inverted A plurality of protrusions 308 are fixedly installed on one side of the inner wall of the fixed frame 302, and one side of the push plate 311 is slidably installed on the corresponding protrusion 308. A plug-in interface 202 is provided in the middle of the top of the air distribution plate 2, and a plurality of first fixing holes 203 are provided on both sides of the inner wall of the plug-in interface 202. The fixing column 306 is slidably installed on the inner wall of the corresponding first fixing hole 203. A plurality of second fixing holes are provided on both sides of the mounting frame 107, and the position of the second fixing hole corresponds to the position of the first fixing hole 203. By setting a fixing mechanism, the plug-in interface 202 on the top of the air distribution plate 2 is inserted into the mounting frame 107, and the rotating cylinder 310 is rotated to drive the locking screw When the push plate 311 moves upward, it pushes the baffle 307 from the side, so that the moving block 305 moves sideways. The fixing column 306 extends from the first fixing hole 203 and is inserted into the second fixing hole corresponding to the side of the mounting frame 107, so that the air distribution plate 2 can be fixed on the mounting frame 107. The push plate 311 moves downward, canceling the support for the moving block 305. The spring 304 rebounds and supports the moving block 305 to return to its original position. The fixing column 306 disengages from the second fixing hole, so that the air distribution plate 2 can be cancelled, making the installation and disassembly of the air distribution plate 2 more convenient.

[0025] In some embodiments, see Figure 1 、 Figure 7A movable frame 4 is fixedly mounted on one side of the first mounting frame 1, and sliding openings 401 are opened on both sides of the movable frame 4. A first motor 402 is fixedly mounted on one side of the movable frame 4, and the output end of the first motor 402 extends to one of the sliding openings 401. A first screw rod 403 is fixedly mounted on the output end of the first motor 402. A sliding frame 404 is slidably mounted on the inner wall of the sliding opening 401. The sliding frame 404 is threadedly connected to the outer wall of the first screw rod 403 through an internal threaded hole on one side thereof. A second motor 405 is fixedly mounted on one side of the sliding frame 404, and the output end of the second motor 405 extends to the inside of the sliding frame 404. A second screw rod is fixedly mounted on the output end of the second motor 405. 406. A connecting rod 407 is slidably installed on the inner wall of the sliding frame 404. The connecting rod 407 is threadedly connected to the outer wall of the second screw rod 406 through an internal threaded hole on one side of the connecting rod 407. The first motor 402, the second motor 405 and the third motor 504 can be servo motors. The first motor 402 starts to drive the first screw rod 403 to rotate, and the first screw rod 403 drives the sliding frame 404 to move on the movable frame 4. The second motor 405 starts to drive the second screw rod 406 to rotate, thereby driving the connecting rod 407 to move its position in the sliding frame 404. The staff can drive the movable frame 5 to move its position through an external controller, making the replacement of the air distribution plate 2 more intelligent.

[0026] For further information, please refer to Figure 8The disassembly and assembly mechanism includes a moving frame 5, several electromagnets 501, several electric push rods 502, a moving shell 503, a third motor 504, a rotating part 505 and a disassembly head 506. The moving frame 5 is fixedly installed at one end of the connecting rod 407. Several electromagnets 501 are fixedly installed at the top of the moving frame 5. Several electric push rods 502 are fixedly installed on the inner wall of the moving frame 5. The moving shell 503 is fixedly installed at the output end of the electric push rod 502. The top of the moving shell 503 extends through the hole at the top of the moving frame 5 to the outside of the top of the moving frame 5. The third motor 504 is fixedly installed on the inner wall of the moving shell 503. The rotating part 505 is rotatably installed at the top of the moving shell 503. The rotating part 505 is fixedly installed at the output end of the third motor 504. The disassembly and assembly head 506 is fixedly installed at the top of the rotating part 505. The disassembly and assembly head 506 is connected to the rotating cylinder on the air distribution plate 2. 310 corresponds to the position, and the electromagnet 501 corresponds to the position of the positioning cylinder 301 on the air distribution plate 2; when the air distribution plate 2 needs to be replaced, the staff removes the sealing door 115, and the staff controls the movable frame 5 to extend into the first installation frame 1 and move to the bottom of the air distribution plate 2 that needs to be replaced. The mounting frame 107 descends, so that the positioning cylinder 301 at the bottom of the air distribution plate 2 is inserted into the electromagnet 501, and the electromagnet 501 is energized to adsorb the positioning cylinder 301. At the same time, the disassembly head 506 is inserted into one end of the corresponding rotating cylinder 310, and the third motor 504 starts to drive the disassembly head 506 to rotate, and the electric push rod 502 starts to drive the movable shell 503 to move up and down, which can drive the rotating cylinder 310 to rotate forward and reverse, thereby driving the locking screw 309 to rotate forward and reverse, and the air distribution plate 2 is installed or disassembled, further improving the staff's replacement efficiency of the air distribution plate 2.

[0027] In this example, a camera can be installed on the movable frame 5 to facilitate staff to observe the position of the air distribution plate 2.

[0028] In this embodiment, the disassembly head 506 is a hexagonal column, and a hexagonal notch is formed at the bottom end of the rotating cylinder 310 .

[0029] Furthermore, a furnace body 114 is welded and fixed on the top of the second mounting frame 113, a loading port is fixedly installed on one side of the furnace body 114, an air inlet is fixedly installed on one side of the air duct 101, and a sealing door 115 is fixedly installed at the opening on one side of the first mounting frame 1 by bolts, and the sealing door 115 corresponds to the position of the movable frame 5; by setting the sealing door 115, the inlet and outlet corresponding to the movable frame 5 on one side of the first mounting frame 1 are sealed.

[0030] The working process and principle of the present invention are as follows: when air is distributed in the furnace body 114, material is fed through the feed port on one side of the furnace body 114, and the combustion particulate matter is loaded onto the mounting plate 205. The air inlet on one side of the air duct 101 is connected to an external fan. The fan is started to feed air into the air duct 101, and the air flow enters the hood 206 through the bottom of the air distribution plate 2 and is blown out through the air outlet of the hood 206.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent air distribution system for a circulating fluidized bed, characterized in that: include: A first installation frame (1), wherein an air duct (101) is welded and fixed to the bottom of the first installation frame (1), a base (102) is welded and fixed to the bottom of the air duct (101), and a second installation frame (113) is welded and fixed to the top of the first installation frame (1); A plurality of air distribution plates (2) are provided inside the first installation frame (1), and a plurality of air hoods (206) are provided inside the second installation frame (113); A support mechanism, the support mechanism being arranged on the base (102), the air duct (101) and the first mounting frame (1), and the support mechanism being used to mount the air distribution plate (2) and the hood (206) via a mounting frame (107) therein; A fixing mechanism, the fixing mechanism being arranged on the air distribution plate (2), and the fixing mechanism fixingly mounting the air distribution plate (2) on the mounting frame (107) via a moving block (305) and a fixing column (306) therein; A disassembly and assembly mechanism is provided on one side of the first installation frame (1), and the disassembly and assembly mechanism disassembles and assembles the air distribution plate (2) via a movable frame (5) thereon.

2. The intelligent gas distribution system for a circulating fluidized bed according to claim 1, characterized in that: The support mechanism includes a plurality of first cylinders (104), a first support block (105), a second support block (106), a fixed rod (112), a plurality of limiting cylinders (108), a connecting rod (109), a support plate (110), a plurality of movable grooves (1011), a mounting frame (107), a sealing member (204) and a mounting plate (205), wherein the plurality of first cylinders (104) are fixedly mounted on the top of the base (102), the first support block (105) is fixedly mounted on the output end of the first cylinder (104), the fixed rod (112) is fixedly mounted on one side of the first support block (105), the second support block (106) is fixedly mounted on one end of the fixed rod (112), and the plurality of limiting cylinders (108) are fixedly mounted on both sides of the inner wall of the air duct (101). The connecting rod (109) is slidably mounted on the inner wall of the corresponding limiting cylinder (108), and the bottom end of the connecting rod (109) extends to the outside of the bottom end of the air duct (101). The support plate (110) is fixedly mounted on the bottom end of the connecting rod (109), and the support plate (110) is located at the top of the corresponding first support block (105). A plurality of movable grooves (1011) are opened on both sides of the inner wall of the first installation frame (1). The mounting frame (107) is slidably mounted on the groove wall of the corresponding movable groove (1011). The top end of the connecting rod (109) is fixedly mounted on the bottom of the corresponding mounting frame (107). The sealing member (204) is fixedly mounted on the mounting port on one side of the second installation frame (113) by bolts, and the mounting plate (205) is fixedly mounted on one side of the sealing member (204).

3. The intelligent gas distribution system for a circulating fluidized bed according to claim 2, characterized in that: The mounting plate (205) is located inside the second mounting frame (113), and a plurality of mounting holes are provided on the mounting plate (205). The hood (206) is fixed to the inner wall of the mounting hole by screws. The mounting plate (205) is located on the top of the mounting frame (107) and the air distribution plate (2), and a plurality of plug holes (201) are provided on the top of the air distribution plate (2). The mounting holes on the mounting plate (205) correspond to the positions of the plug holes (201) on the air distribution plate (2).

4. The intelligent gas distribution system for a circulating fluidized bed according to claim 2, characterized in that: A plurality of slide rails (103) are fixedly installed on the top of the base (102), and a slide groove is provided at the bottom of the first support block (105) and the second support block (106). The first support block (105) and the second support block (106) are slidably installed on the slide rail (103) through the slide groove at the bottom. The first support block (105), the second support block (106) and the support plate (110) are all provided with chamfers at one end, and the connecting rod (109) is extended to the outer wall outside the bottom end of the air duct (101) and is fixedly installed with a sealing plate (111).

5. The intelligent gas distribution system for a circulating fluidized bed according to claim 2, characterized in that: The fixing mechanism includes a fixing plate (3), a plurality of positioning cylinders (301), a fixing frame (302), a plurality of limiting columns (303), a spring (304), a moving block (305), a fixing column (306), a baffle (307), a locking screw (309), a rotating cylinder (310) and a push plate (311), wherein the fixing plate (3) is fixedly mounted on the bottom of the air distribution plate (2), a plurality of the positioning cylinders (301) are fixedly mounted on the bottom end of the fixing plate (3), the fixing frame (302) is fixedly mounted on both sides of the fixing plate (3), a plurality of the limiting columns (303) are fixedly mounted on one side of the inner wall of the fixing frame (302), and the spring (304) is mounted on the outer wall corresponding to the limiting column (303). The moving block (305) is slidably mounted on the outer wall of the limiting column (303), one end of the spring (304) is fixedly mounted on one side of the inner wall of the fixed frame (302), and the other end of the spring (304) is fixedly mounted on the side corresponding to the moving block (305), the fixed column (306) is fixedly mounted on one side of the moving block (305), the baffle (307) is fixedly mounted on the bottom of the moving block (305), a plurality of threaded holes are opened at the bottom end of the fixed frame (302), the locking screw (309) is threadedly connected to the inner wall of the threaded hole, the rotating cylinder (310) is fixedly mounted on the bottom end of the locking screw (309), and the push plate (311) is rotatably mounted on the top end of the locking screw (309).

6. The intelligent gas distribution system for a circulating fluidized bed according to claim 5, characterized in that: The push plate (311) is located on a side corresponding to the baffle (307), and a chamfer is provided on one end of the push plate (311) and the baffle (307). A plurality of protrusions (308) are fixedly installed on one side of the inner wall of the fixed frame (302), and one side of the push plate (311) is slidably installed on the corresponding protrusion (308). A plug interface (202) is provided in the middle of the top of the air distribution plate (2), and a plurality of first fixing holes (203) are provided on both sides of the inner wall of the plug interface (202). The fixing column (306) is slidably installed on the inner wall corresponding to the first fixing hole (203). A plurality of second fixing holes are provided on both sides of the mounting frame (107), and the position of the second fixing hole corresponds to the position of the first fixing hole (203).

7. The intelligent gas distribution system for a circulating fluidized bed according to claim 2, characterized in that: A movable frame (4) is fixedly mounted on one side of the first mounting frame (1), and sliding openings (401) are provided on both sides of the movable frame (4). A first motor (402) is fixedly mounted on one side of the movable frame (4), and an output end of the first motor (402) extends into one of the sliding openings (401). A first screw rod (403) is fixedly mounted on the output end of the first motor (402). A sliding frame (404) is slidably mounted on the inner wall of the sliding opening (401), and the sliding frame (404) is fixedly mounted on one side thereof. The internal threaded hole is threadedly connected to the outer wall of the first screw rod (403), a second motor (405) is fixedly installed on one side of the sliding frame (404), the output end of the second motor (405) extends into the interior of the sliding frame (404), a second screw rod (406) is fixedly installed on the output end of the second motor (405), a connecting rod (407) is slidably installed on the inner wall of the sliding frame (404), and the connecting rod (407) is threadedly connected to the outer wall of the second screw rod (406) through the internal threaded hole on one side thereof.

8. The intelligent gas distribution system for a circulating fluidized bed according to claim 7, characterized in that: The disassembly and assembly mechanism comprises a moving frame (5), a plurality of electromagnets (501), a plurality of electric push rods (502), a moving housing (503), a third motor (504), a rotating member (505) and a disassembly and assembly head (506), wherein the moving frame (5) is fixedly mounted on one end of the connecting rod (407), a plurality of the electromagnets (501) are fixedly mounted on the top of the moving frame (5), a plurality of the electric push rods (502) are fixedly mounted on the inner wall of the moving frame (5), the moving housing (503) is fixedly mounted on the output end of the electric push rod (502), and the top of the moving housing (503) passes through the moving frame. The hole at the top of (5) extends to the outside of the top of the movable frame (5), the third motor (504) is fixedly mounted on the inner wall of the movable housing (503), the rotating member (505) is rotatably mounted on the top of the movable housing (503), the rotating member (505) is fixedly mounted on the output end of the third motor (504), the disassembly head (506) is fixedly mounted on the top of the rotating member (505), the disassembly head (506) corresponds to the position of the rotating cylinder (310) on the air distribution plate (2), and the electromagnet (501) corresponds to the position of the positioning cylinder (301) on the air distribution plate (2).

9. The intelligent gas distribution system for a circulating fluidized bed according to claim 8, characterized in that: A furnace body (114) is welded and fixed to the top of the second installation frame (113), a loading port is fixedly installed on one side of the furnace body (114), an air inlet is fixedly installed on one side of the air duct (101), and a sealing door (115) is fixedly installed at the opening on one side of the first installation frame (1) by means of bolts, and the sealing door (115) corresponds to the position of the movable frame (5).

10. The process for using the intelligent gas distribution system for a circulating fluidized bed according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When distributing air to the furnace body (114), the fan connected to the air inlet on one side of the air duct (101) is started to supply air to the air duct (101). The airflow passes through the bottom of the air distribution plate (2) and enters the hood (206), and is blown out through the air outlet of the hood (206); S2. When the hood (206) needs to be replaced, the first support block (105) and the second support block (106) cancel the support for the support plate (110), and the support plate (110) is driven down by its own gravity, so that the air distribution plate (2) is separated from the hood (206), the fixing of the sealing member (204) and the second mounting frame (113) is canceled, and the mounting plate (205) is pulled out, so that the worn or clogged hood (206) can be replaced; S3. When replacing the air distribution plate (2), the staff controls the movable frame (5) to extend into the first installation frame (1) and move it to the bottom of the air distribution plate (2) to be replaced. The installation frame (107) descends, and the electromagnet (501) is energized to adsorb the positioning cylinder (301). At the same time, the disassembly head (506) is inserted into one end of the corresponding rotating cylinder (310). The disassembly head (506) rotates, driving the rotating cylinder (310) to rotate forward and reverse, thereby driving the locking screw (309) to rotate forward and reverse, and the air distribution plate (2) is installed or disassembled.

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