Energy-saving circulating fluidized bed boiler for papermaking

Abstract

The utility model discloses an energy-saving circulating fluidized bed boiler for papermaking, which relates to the field of papermaking and comprises a fluidized boiler and a support stabilizing frame, a butt-joint hollow box is mounted above the support stabilizing frame, and a meshing transmission mechanism for rotating a conveying screw rod is mounted in the butt-joint hollow box. And the meshing transmission mechanism comprises a fixed driving motor. According to the energy-saving circulating fluidized bed boiler for papermaking, when the interior of equipment needs to be cleaned, a fixed driving motor is started firstly to drive an integrated driving rod to work, an expanded eccentric wheel can drive a middle connecting transmission rod immediately, and the middle connecting transmission rod can move up and down in the rotating process due to the hollow eccentric design of the expanded eccentric wheel; and the internal cleaning plate is driven to slide along the inside of the fluidized boiler in an attached manner, so that dirt can be effectively removed, the energy cost is reduced, the use and combustion efficiency of energy is improved, and the use purpose of saving energy is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to papermaking technical field, concretely to an energy -conserving circulating fluidized bed boiler for papermaking. BACKGROUND

[0002] The fluidized bed boiler can utilize the alkaline substances and metal ions in the sludge to absorb sulfides and nitrogen oxides in the flue gas, achieving desulfurization and denitrification. Through the circulating fluidized bed boiler technology, the energy in the papermaking sludge can be converted into heat energy or electric energy, realizing resource recycling.

[0003] The existing circulating fluidized bed boiler generally uses an auger to continuously feed fuel into the boiler, but manual feeding of the fuel into the auger's feeding port is still required. If the feeding port is slightly higher, the labor intensity will increase dramatically.

[0004] To overcome the above-mentioned defects, the prior art (Chinese patent with publication number CN112066368B and application date of June 7, 2022) discloses a circulating fluidized bed boiler for blending papermaking sludge, which comprises a furnace body and a feeding device. The feeding device includes a feeding pipe, which is fixedly connected to the circulating fluidized bed boiler. An auger is arranged in the feeding pipe. The end of the auger away from the circulating fluidized bed boiler is fixedly connected to a first shaft, which is fixedly connected to a first pulley. A first feeding box is fixedly connected to the outer wall of the feeding pipe. The lower end of the first feeding box is fixedly connected to a second feeding box, and the other end of the second feeding box is fixedly connected to a third feeding box. Feeding rollers are rotatably connected to the upper and lower ends of the first feeding box. A second shaft is rotatably connected to the second feeding box, and the second shaft is fixedly connected to a feeding shovel. A fourth shaft and a fifth shaft are respectively fixedly connected to a fifth gear and a second sprocket. The second gear is engaged with the first gear and the third gear. The present invention has high automation, greatly saving manpower and reducing labor intensity.

[0005] Although the above design can solve the above problems, a layer of dirt will adhere to the inside of the equipment after long-term use, which will reduce the combustion efficiency and increase the energy cost during subsequent combustion processing, making it inconvenient for long-term use. At the same time, the feeding operation is very complex and tedious, manual feeding will reduce efficiency and increase labor costs, and the gas generated inside during the feeding operation will cause harm to the human body. UTILITY MODEL CONTENTS

[0006] The utility model discloses a papermaking energy -saving circulating fluidized bed boiler to solve the problem of the equipment inside adhering to a layer of dirt after long -term use in the background art, which reduces the combustion efficiency in subsequent combustion processing, increases the energy cost, is inconvenient for long -term use, and is very complex and trivial when feeding operation is needed.

[0007] To achieve the above object, the utility model provides the following technical scheme: a papermaking energy -saving circulating fluidized bed boiler, including fluidized boiler and support stable frame, the upper portion of support stable frame is installed with docking hollow box, and the inside of docking hollow box is installed with the meshing drive mechanism that rotates to conveying screw rod, the meshing drive mechanism includes fixed drive motor, and fixed drive motor fixed mounting is at the side of support stable frame, the output end outer surface of fixed drive motor is installed with semicircle transmission gear, and the top of docking hollow box is equipped with raw material entrance, the back of support stable frame is installed with fluidized boiler, and the inside of fluidized boiler is installed with nested sliding mechanism that moves up and down to inside cleaning plate.

[0008] Further, the nested sliding mechanism includes a drive integrated rod, and the drive integrated rod is fixedly installed on the back output end of the fixed drive motor.

[0009] Further, the distal end of the drive integrated rod is provided with an enlarged eccentric wheel, and the outer surface of the enlarged eccentric wheel is provided with a middle connecting transmission rod.

[0010] Further, the inner surface of the middle connecting transmission rod and the outer surface of the fitted sliding plate are fixedly connected with each other, and the corresponding outer surface of the fluidized boiler is provided with a limiting sliding inner groove.

[0011] Further, the outer surface of the docking hollow box is provided with a first meshing rack, and the first meshing rack is slidingly installed on the outer surface of the docking hollow box.

[0012] Further, the docking hollow box is integrally designed with the input connecting pipe, and the front end of the conveying screw rod penetrates through the inside of the docking hollow box, the outer surface of the integrated transmission gear is in contact with the outer surface of the first meshing rack to form a meshing structure, and the half-circle transmission gear is in meshing with the outer surface of the integrated transmission gear through the outer surface of the second meshing rack to form a transmission mechanism.

[0013] Further, the inside of the second limiting sliding frame is provided with an internal cleaning plate, the outer surface of the internal cleaning plate is fixed with the abutting sliding plate, and the internal cleaning plate slides against the inner surface of the fluidized boiler.

[0014] Compared with the prior art, the papermaking energy-saving circulating fluidized bed boiler has the advantages that when internal cleaning operation is needed, the fixed driving motor is started first to drive the integrated rod to work, the enlarged eccentric wheel drives the middle connecting transmission rod, the middle connecting transmission rod moves up and down in the rotating process due to the hollow eccentric design of the enlarged eccentric wheel, and the internal cleaning plate is driven to slide along the inside of the fluidized boiler, so that dirt can be effectively removed, energy cost is reduced, energy combustion efficiency is improved, and the use purpose of energy saving is achieved.

[0015] Further, when feeding operation is needed, the raw materials are directly put into the inside of the docking hollow box through the raw material inlet, the first meshing rack and the second meshing rack are intermittently driven in the same direction by the fixed driving motor driving the half-circle transmission gear, the integrated transmission gear between the first meshing rack and the second meshing rack rotates, the conveying screw rod is driven to continuously input the raw materials into the inside of the input connecting pipe, and finally falls into the fluidized boiler for combustion processing, so that the feeding efficiency is improved, and the labor cost is reduced.

[0016] Further, the four groups of internal cleaning plates are connected to each other through right-angle connecting blocks to achieve stable synchronous movement, so that the internal cleaning effect of the fluidized boiler is better, and the input connecting pipe is divided into three groups to perform efficient feeding operation on the fluidized boiler, so that the production efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the fluidized boiler of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the raw material inlet of the utility model;

[0019] Figure 3 It is a three-dimensional structure schematic view of the conveying screw rod of the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of the driving integrated rod of the utility model;

[0021] Figure 5 It is the three-dimensional structure schematic view of the right-angle connecting block of the utility model;

[0022] Figure 6 It is the three-dimensional structure schematic view of the second limiting sliding frame of the utility model.

[0023] In the figure: 1, fluidized boiler; 2, support stable frame; 3, raw material inlet; 4, butt joint hollow box; 5, input connecting pipe; 6, integral transmission gear; 7, first meshing rack; 8, second meshing rack; 9, fixed driving motor; 10, semicircular transmission gear; 11, driving integrated rod; 12, first limiting sliding frame; 13, enlarged eccentric wheel; 14, middle connecting transmission rod; 15, attached sliding plate; 16, conveying spiral rod; 17, second limiting sliding frame; 18, internal cleaning plate; 19, right-angle connecting block; 20, limiting sliding inner groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Embodiment one: please refer to Figures 1-6 The utility model provides the following technical scheme: a kind of energy-saving circulating fluidized bed boiler for papermaking, including fluidized boiler 1 and support stable frame 2, support stable frame 2 is equipped with butt joint hollow box 4 above, and the inside of butt joint hollow box 4 is equipped with meshing transmission mechanism for rotating to conveying spiral rod 16, meshing transmission mechanism includes fixed driving motor 9, and fixed driving motor 9 is fixedly installed on the side surface of support stable frame 2, and the output end outer surface of fixed driving motor 9 is equipped with semicircular transmission gear 10, and the top of butt joint hollow box 4 is equipped with raw material inlet 3, support stable frame 2 is equipped with fluidized boiler 1 on back, and the inside of fluidized boiler 1 is equipped with nested sliding mechanism for moving up and down to internal cleaning plate 18.

[0026] As Figure 1 , Figure 2 , Figure 3The technical scheme is shown, in order to solve the problem that after long-term use, a layer of dirt will adhere to the inside of the equipment, which will reduce the combustion efficiency in subsequent combustion processing, increase energy costs, and is not convenient for long-term use, it is disclosed that: the outer surface of the butt joint hollow box 4 is provided with a first meshing rack 7, and the first meshing rack 7 is slidingly installed on the outer surface of the butt joint hollow box 4, the lower side of the first meshing rack 7 is provided with a second meshing rack 8, and the first meshing rack 7 and the second meshing rack 8 are meshed with a semicircular transmission gear 10, the inside of the butt joint hollow box 4 is provided with an input connecting pipe 5, and the inside of the input connecting pipe 5 is provided with a conveying screw rod 16, the end of the conveying screw rod 16 is provided with an integrated transmission gear 6, and the upper end and the lower end of the integrated transmission gear 6 are meshed with the first meshing rack 7 and the second meshing rack 8 respectively, the butt joint hollow box 4 and the input connecting pipe 5 are designed in one piece, and the front end of the conveying screw rod 16 passes through the inside of the butt joint hollow box 4, the outer surface of the integrated transmission gear 6 and the outer surface of the first meshing rack 7 are in contact to form a meshing structure, and the semicircular transmission gear 10 is meshed with the outer surface of the integrated transmission gear 6 through the outer surface of the second meshing rack 8 to form a transmission mechanism.

[0027] When it is necessary to perform efficient and stable cleaning operation on the inside of the fluidized boiler 1, the fixed driving motor 9 fixedly installed on the side surface of the support stabilizing frame 2 is started directly, so that the driving integrated rod 11 fixedly installed on the outer surface of the output end of the back surface of the fixed driving motor 9 moves synchronously, at this time, the driving integrated rod 11 drives the enlarged eccentric wheel 13 fixedly installed at the end to rotate synchronously, at the same time, the enlarged eccentric wheel 13 synchronously drives the middle connecting transmission rod 14 slidingly installed on the outer surface, in the process of rotating, the enlarged eccentric wheel 13 moves the middle connecting transmission rod 14 up and down due to the hollow eccentric design inside, and the middle connecting transmission rod 14 drives the abutting sliding plate 15 rotatingly installed at the end to move in the process of moving, the sliding of the abutting sliding plate 15 moves vertically inside the first limiting sliding frame 12 fixedly installed on the corresponding position of the outer surface of the fluidized boiler 1, at the same time, the abutting sliding plate 15 is driven to slide in the limiting sliding inner groove 20 opened in the same position of the fluidized boiler 1, in the process of sliding of the abutting sliding plate 15, the inside cleaning plate 18 connected to the outer surface is synchronously driven, the inside cleaning plate 18 moves vertically inside the second limiting sliding frame 17 fixedly installed on the corresponding position of the fluidized boiler 1, and the abutting sliding plate 15 slides tightly against the inner surface of the fluidized boiler 1, and the four groups of fluidized boilers 1 are synchronously slid through the connection of the right-angle connecting block 19, so as to clean the whole inner surface of the four groups of fluidized boilers 1.

[0028] Embodiment two: as Figure 4 , Figure 5 , Figure 6The technical scheme is shown, in order to solve the problem that the feeding operation is very complex and tedious, manual feeding will lead to low efficiency and high labor cost, and the gas generated inside will cause damage to the human body during feeding operation, the nested sliding mechanism includes a driving integrated rod 11, and the driving integrated rod 11 is fixedly installed on the back output end of the fixed driving motor 9, the outer surface of the fluidized boiler 1 is provided with a first limiting sliding frame 12, and the inside of the first limiting sliding frame 12 is provided with a matching sliding plate 15, the end of the driving integrated rod 11 is provided with an enlarged eccentric wheel 13, and the outer surface of the enlarged eccentric wheel 13 is provided with a middle connecting transmission rod 14, the inner surface of the middle connecting transmission rod 14 and the outer surface of the matching sliding plate 15 are fixedly connected with each other, and the corresponding outer surface of the fluidized boiler 1 is provided with a limiting sliding inner groove 20, the matching sliding plate 15 slides along the inside of the limiting sliding inner groove 20, and the inner surface of the fluidized boiler 1 is provided with a second limiting sliding frame 17, the inside of the second limiting sliding frame 17 is provided with an internal cleaning plate 18, and the outer surface of the internal cleaning plate 18 and the matching sliding plate 15 are fixedly connected with each other, and the internal cleaning plate 18 slides tightly against the inner surface of the fluidized boiler 1.

[0029] When stable and efficient conveying work of the processing raw materials is needed, the fixed driving motor 9 on the side of the supporting and stabilizing frame 2 is directly started, so that the fixed driving motor 9 synchronously drives the semicircular transmission gear 10 fixedly installed on the output end surface, the second meshing rack 8 in contact with the semicircular transmission gear 10 rotates and is driven to mesh with the second meshing rack 8, since the second meshing rack 8 is slidingly installed on the outer surface of the butt joint hollow box 4, and the butt joint hollow box 4 is fixedly installed in the inside of the supporting and stabilizing frame 2, the second meshing rack 8 is driven to slide laterally and drive the integrated transmission gear 6 in contact with the lower surface, since the integrated transmission gear 6 is fixedly installed at the end of the conveying spiral rod 16, and the conveying spiral rod 16 penetrates the butt joint hollow box 4 and is rotatably installed in the inside of the butt joint hollow box 4, the integrated transmission gear 6 is driven to continuously rotate by the meshing movement, the raw materials entering the inside of the butt joint hollow box 4 through the raw material inlet 3 are continuously driven forward by the conveying spiral rod 16, and are connected and driven into the inside of the fluidized boiler 1 through the input connecting pipe 5 for further processing, since the semicircular transmission gear 10 is designed in a semicircular shape, it will be out of contact with the second meshing rack 8 after rotating a semicircle, and then will be in contact with the first meshing rack 7 to drive the first meshing rack 7, the first meshing rack 7 and the second meshing rack 8 will continuously rotate and drive the integrated transmission gear 6 in contact with each other, to achieve efficient feeding work.

[0030] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium.

[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An energy-saving circulating fluidized bed boiler for papermaking, comprising a fluidized boiler (1) and a support and stabilizing frame (2), wherein a docking hollow box (4) is installed above the support and stabilizing frame (2), and a meshing transmission mechanism for rotating a conveying screw rod (16) is installed inside the docking hollow box (4); Its features are: The meshing transmission mechanism includes a fixed drive motor (9), which is fixedly installed on the side of the support and stabilizing frame (2). A semi-circular transmission gear (10) is installed on the outer surface of the output end of the fixed drive motor (9), and a raw material inlet (3) is opened on the top of the docking hollow box (4). A fluidized boiler (1) is installed on the back of the support and stabilizing frame (2), and a nested sliding mechanism for moving the internal cleaning plate (18) up and down is installed inside the fluidized boiler (1).

2. The energy-saving circulating fluidized bed boiler for papermaking according to claim 1, characterized in that: The nested sliding mechanism includes a drive rod (11), which is fixedly installed on the back output end of the fixed drive motor (9). The outer surface of the fluidized boiler (1) is equipped with a first limiting sliding frame (12), and the inside of the first limiting sliding frame (12) is equipped with a fitting sliding plate (15).

3. The energy-saving circulating fluidized bed boiler for papermaking according to claim 2, characterized in that: An enlarged eccentric wheel (13) is installed at the end of the drive rod (11), and a central transmission rod (14) is installed on the outer surface of the enlarged eccentric wheel (13). The inner surface of the central transmission rod (14) is fixed to the outer surface of the sliding plate (15), and a limiting sliding groove (20) is opened on the corresponding outer surface of the fluidized boiler (1). The sliding plate (15) slides along the inside of the limiting sliding groove (20), and a second limiting sliding frame (17) is installed on the inner surface of the fluidized boiler (1).

4. The energy-saving circulating fluidized bed boiler for papermaking according to claim 1, characterized in that: The outer surface of the docking hollow box (4) is equipped with a first meshing rack (7), and the first meshing rack (7) is slidably installed on the outer surface of the docking hollow box (4). A second meshing rack (8) is installed below the first meshing rack (7), and both the first meshing rack (7) and the second meshing rack (8) mesh with the semi-circular transmission gear (10).

5. The energy-saving circulating fluidized bed boiler for papermaking according to claim 4, characterized in that: The hollow box (4) is equipped with an input connecting pipe (5), and the input connecting pipe (5) is equipped with a conveying screw rod (16). The end of the conveying screw rod (16) is equipped with an integrated transmission gear (6), and the upper and lower ends of the integrated transmission gear (6) are respectively engaged with the first meshing rack (7) and the second meshing rack (8).

6. The energy-saving circulating fluidized bed boiler for papermaking according to claim 5, characterized in that: The docking hollow box (4) and the input connecting pipe (5) are designed as a whole, and the front end of the conveying screw rod (16) passes through the interior of the docking hollow box (4). The outer surface of the integrated transmission gear (6) contacts the outer surface of the first meshing rack (7) to form a meshing structure, and the semi-circular transmission gear (10) meshes with the outer surface of the integrated transmission gear (6) through the outer surface of the second meshing rack (8) to form a transmission mechanism.

7. The energy-saving circulating fluidized bed boiler for papermaking according to claim 3, characterized in that: The second limiting sliding frame (17) is equipped with an internal cleaning plate (18), and the outer surface of the internal cleaning plate (18) is fixed to the sliding plate (15). The internal cleaning plate (18) slides close to the inner surface of the fluidized boiler (1).

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