Constant-temperature monitoring fire coal drying device for coal-fired power plant
By designing a constant temperature monitoring coal-fired drying device in a coal-fired power plant, and using the combined structure of exhaust gas, pressurized materials and spray components, the problem of coal powder discharge with air is solved, the effective utilization and environmental protection of coal powder are achieved, and the cost of coal burning is reduced.
Patent Information
- Application Number
- CN202411559959.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the drying process of existing coal-fired drying devices, coal powder is discharged to the outside world with the air, resulting in increased dust, environmental pollution and coal burning losses, thereby increasing the cost of coal powder use.
A coal-fired power plant constant temperature monitoring coal-fired drying device is designed, using structures such as exhaust components and pressed components to maintain the air pressure stability through air circulation. The coal powder enters the pressed frame under gravity, and after extrusion molding and the cooperation of electric push rods, it enters the drying chamber for drying treatment. At the same time, the coal powder is sprayed and dust-reduced through the spraying assembly to prevent the coal powder from dispersing.
Effectively prevent coal powder from being discharged to the outside world with the air, reduce dust and environmental pollution, improve the utilization rate of coal powder, and reduce the cost of coal burning.
Smart Images
Figure CN119617805A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of coal drying, and in particular relates to a constant temperature monitoring coal drying device for a coal-fired power plant. Background Art
[0002] Coal-fired power plants are large-scale power plants built to meet electricity demand, which use the combustion of coal to generate high-temperature and high-pressure steam to drive turbine generators, thereby converting mechanical energy into electrical energy. Before coal is burned in coal-fired power plants, the coal often needs to be dried, because the moisture in the coal will reduce the calorific value of the coal. Drying can reduce the moisture content in the coal, thereby increasing its calorific value and allowing the coal to release more heat when burned.
[0003] When existing coal drying devices dry coal, they often use a hot air blower to blow hot air into the drying bin, and then dry the coal with the hot air. When blowing the hot air, it is often necessary to set up a corresponding exhaust duct to discharge the excess air, water vapor, etc. in the drying bin to the outside. In the process of discharging the air inside the drying bin to the outside, some coal powder dropped from the coal inside the drying bin will often be brought into the exhaust duct, and then discharged to the outside, causing dust, which will damage the environment around the drying bin. In addition, the dispersion of coal powder in the air will also lead to an increase in the loss of coal, thereby resulting in a waste of coal powder and an increase in the cost of using the entire coal.
[0004] Therefore, we propose a constant temperature monitoring coal drying device for a coal-fired power plant to solve the above-mentioned problems. Summary of the invention
[0005] In view of the problems in the prior art that coal powder is discharged to the outside along with the air inside the drying bin, causing dust, which in turn damages the surrounding environment and the coal powder is scattered to the outside, resulting in increased coal loss and the inability to utilize the coal powder, which in turn leads to increased use costs of the coal powder, the purpose of the present invention is to provide a constant temperature monitoring coal drying device for a coal-fired power plant.
[0006] In order to solve the above problems, the technical solution adopted by the present invention is as follows: a constant temperature monitoring coal drying device for a coal-fired power plant, comprising a drying bin, a sliding door assembly is provided on the side wall of the drying bin, a hot air blower is fixedly installed through the side wall of the drying bin, an exhaust assembly is fixedly connected to the side wall of the drying bin, a pressing assembly is fixedly installed through the side wall of the drying bin, a dust reduction assembly is fixedly installed on the top of the pressing assembly, a temperature monitor is fixedly installed through the side wall of the drying bin, and a control panel is fixedly installed on the side wall of the drying bin; The exhaust assembly comprises a long box, which is fixedly mounted on the side wall of the drying bin, the side wall of the long box is fixedly connected to a blocking frame, and the side wall of the blocking frame is fixedly connected to an exhaust frame; The pressing assembly comprises a pressing frame, which is fixedly connected to the bottom of the exhaust frame, a side wall of the pressing frame is fixedly connected to a conveying frame, a side wall of the pressing frame is fixedly connected to an extrusion box, and an inner wall of the extrusion box and an inner wall of the pressing frame are slidably connected to an extrusion block; The dust reduction component comprises a spray frame, which is fixedly connected to the side wall of the exhaust frame. The side wall of the exhaust frame close to the spray frame is fixedly connected with a plurality of spray pipes, and the inner wall of the exhaust frame is slidably connected with a filter plate.
[0007] Furthermore, the sliding door assembly includes a plurality of limit rods, which are slidably connected to the side wall of the drying bin, one end of the plurality of limit rods is commonly fixedly connected to the sliding door body, the side wall of the sliding door body is fixedly connected to a bearing plate, and the bearing plate and the inner wall of the drying bin slide against each other.
[0008] Furthermore, an observation window is provided on the side wall of the sliding door body, a pull plate is fixedly connected to the side wall of the sliding door body, and the sliding door body is fixed to the side wall of the drying chamber by a fixing assembly.
[0009] Furthermore, a first electric push rod is fixedly installed on the inner wall of the extrusion box, a movable end of the first electric push rod is fixedly connected to the side wall of the extrusion block, and a plurality of ventilation holes are opened on the side wall of the conveying frame.
[0010] Furthermore, a sealing box is fixedly connected to the top of the pressing frame, a baffle is sealingly and slidably connected to the inner wall of the pressing frame, a second electric push rod is fixedly installed on the inner wall of the sealing box, and the movable end of the second electric push rod is fixedly connected to the side wall of the baffle.
[0011] Furthermore, the side wall of the spray frame is fixedly connected to a water tank, the side wall of the water tank is fixedly connected to a water pipe, one end of the water pipe away from the water tank is fixedly connected to the side wall of the spray frame, the top of the water tank is fixedly connected to a water inlet pipe, and a balancing hole is opened on the side wall of the water tank.
[0012] Furthermore, the inner wall of the spray frame is sealingly and slidingly connected to a piston plate, the top of the piston plate and the top of the filter plate are fixedly connected to a connecting plate, the side wall of the connecting plate is fixedly connected to a back plate, the side wall of the spray frame is rotatably connected to a rotating rod, the side wall of the rotating rod is rotatably connected to a cam, the back plate and the side wall of the cam slide against each other, and a motor is fixedly installed on the side wall of the spray frame, and the output end of the motor is fixedly connected to one end of the rotating rod.
[0013] Furthermore, the exhaust frame side walls are symmetrically provided with long grooves, the inner walls of the long grooves are slidably connected with sliders, the side walls of the sliders are fixedly connected to the side walls of the filter plate, the inner walls of the long grooves are fixedly connected to the first springs, and one end of the first spring is fixedly connected to the adjacent side walls of the sliders.
[0014] Furthermore, the side walls of the spray frame are symmetrically fixedly connected to a limit box, the inner walls of the limit box are slidably connected to a moving block, the side walls of the moving block are fixedly connected to a long rod, the side walls of the long rod and the side walls of the connecting plate are fixedly connected, the inner walls of the limit box are fixedly connected to a second spring, and one end of the second spring is fixedly connected to the adjacent side wall of the moving block.
[0015] Furthermore, a first one-way valve is fixedly installed on the inner wall of the spray pipe, and a second one-way valve is fixedly installed on the inner wall of the water delivery pipe.
[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by arranging structures such as exhaust components and pressing components, the air inside the drying bin can circulate, so that the air pressure inside the drying bin can be kept stable, and the coal powder flowing with the air inside the drying bin can move to the inside of the pressing frame under the action of its own gravity, and after a certain period of accumulation, the coal powder is extruded into shape under the joint action of the baffle, the pressing frame and the extrusion block, and when the second electric push rod removes the baffle, the first electric push rod pushes the coal powder into the conveying frame again, and then moves it to the inside of the drying bin again, and then the coal powder is reused, and the collected coal powder can be used after drying, and the ventilation holes can reduce the obstruction of the conveying frame to the air circulation inside the drying bin, thereby maintaining the air circulation inside the drying bin.
[0017] 2. In the present invention, by setting structures such as cam, filter plate and piston plate, the cam can drive the connecting plate to move back and forth, and then the connecting plate drives the piston plate and the cam to move back and forth, thereby vibrating the coal powder adhered to the mesh and side walls of the piston plate, so that it falls into the pressing frame. When the piston plate moves back and forth, when the piston plate moves upward, the water inside the water tank will be pumped into the spray frame through the water pipe, and when the piston plate moves downward, the clean water inside the spray frame will be sprayed into the exhaust frame through the spray pipe, thereby spraying the coal powder to reduce dust from the coal powder, and the clean water content sprayed by the spray pipe each time is relatively fixed, thereby reducing dust from the coal powder, preventing the coal powder from being dispersed into the outside, and also increasing the weight of the coal powder, so that the coal powder can fall into the pressing frame.
[0018] 3. In the present invention, by setting the first spring, the second spring and the abutment plate and other structures, the slider can restrict the filter plate so that the filter plate can only move in the vertical direction, and the first spring can buffer the movement process of the filter plate, thereby preventing the slider from frequently colliding with the inside of the long groove and causing structural damage, and the second spring can buffer the movement process of the connecting plate and drive the piston plate to move quickly to the initial position, so that the abutment plate can move with the cam again, thereby driving the piston plate to move back and forth. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic side view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the drying bin in the present invention; Figure 4 It is a structural schematic diagram of the sliding door assembly in the present invention; Figure 5 It is a schematic diagram of the overall structure of the exhaust component, the dust reduction component and the material pressing component in the present invention; Figure 6 It is a schematic diagram of the structure of the dust reduction component and the material pressing component in the present invention; Figure 7 It is a schematic top view of the structure of the dust reduction component and the material pressing component in the present invention; Figure 8 It is a schematic diagram of the internal structure of the dust reduction component and the material pressing component in the present invention; Fig. 9 It is a schematic diagram of the internal structure of the material pressing component in the present invention; Fig.10 It is a schematic cross-sectional view of the internal structure of the material pressing assembly in the present invention; Fig.11 for Fig.10 Schematic diagram of the enlarged structure of part A.
[0020] In the figure: 1. Drying chamber; 2. Sliding door assembly; 201. Limit rod; 202. Sliding door body; 203. Loading plate; 204. Observation window; 205. Fixing assembly; 206. Pulling plate; 3. Hot hair dryer; 4. Exhaust assembly; 401. Long box; 402. Blocking frame; 403. Exhaust frame; 5. Pressing assembly; 501. Pressing frame; 503. Conveying frame; 504. Extrusion box; 505. First electric push rod; 506. Extrusion block; 507. Sealing box; 508. Second electric push rod; 509. Baffle; 510. Ventilation hole; 6, dust suppression component; 601, spray frame; 602, spray pipe; 603, filter plate; 604, water storage tank; 605, water pipe; 606, water inlet pipe; 607, rotating rod; 608, cam; 609, connecting plate; 610, piston plate; 611, motor; 612, long groove; 613, slider; 614, first spring; 615, limit box; 616, moving block; 617, long rod; 618, second spring; 619, first one-way valve; 620, second one-way valve; 7, temperature monitor; 8, control panel. DETAILED DESCRIPTION
[0021] The present invention is further described below in conjunction with specific embodiments.
[0022] In order to solve the problem that when the pulverized coal is discharged to the outside with the air inside the drying bin 1, the pulverized coal cannot be used, thereby increasing the cost of using the pulverized coal. Figure 1 - Figure 8 As shown: a constant temperature monitoring coal drying device for a coal-fired power plant, including a drying bin 1, a sliding door assembly 2 is provided on the side wall of the drying bin 1, and the interior of the drying bin 1 can be shielded or closed by the sliding door assembly 2, so as to facilitate the taking and placing of the required dried coal in the drying bin 1, and a hot blower 3 is fixedly installed through the side wall of the drying bin 1, and the hot blower 3 can provide hot air to the interior of the drying bin 1, and then dry the coal in the drying bin 1. The hot blower 3 is a prior art and will not be described in detail here. The side wall of the drying bin 1 is fixedly connected with an exhaust assembly 4, and the exhaust assembly 4 will The air blown into the drying bin 1 by the hot air blower 3 is discharged to the outside, thereby maintaining the air pressure balance inside the drying bin 1. A material pressing component 5 is fixedly installed through the side wall of the drying bin 1, and a dust reduction component 6 is fixedly installed on the top of the material pressing component 5. A temperature monitor 7 is fixedly installed through the side wall of the drying bin 1. The temperature monitor 7 can monitor the temperature inside the drying bin 1, so as to facilitate monitoring whether the interior is in a constant temperature state. A control panel 8 is fixedly installed on the side wall of the drying bin 1. The control panel 8 can regulate various energized structures inside the entire device for centralized control.
[0023] The exhaust assembly 4 includes a long box 401, which is fixedly installed on the side wall of the drying bin 1. The side wall of the long box 401 is fixedly connected to a blocking frame 402. The blocking frame 402 is a Z-shaped structure, which prevents air and coal powder from flowing back into the long box 401. The side wall of the blocking frame 402 is fixedly connected to an exhaust frame 403, and the air inside the drying bin 1 is discharged to the outside through the exhaust frame 403.
[0024] The pressing assembly 5 includes a pressing frame 501, which is fixedly connected to the bottom of the exhaust frame 403. The side wall of the pressing frame 501 is fixedly connected to the conveying frame 503. The side wall of the pressing frame 501 is fixedly connected to the extrusion box 504. The inner wall of the extrusion box 504 and the inner wall of the pressing frame 501 are slidably connected with an extrusion block 506. The coal powder that moves to the inside of the exhaust frame 403 along with the air will fall into the inside of the pressing frame 501 due to its own gravity, and the extrusion block 506 can extrude the coal powder, and then squeeze the coal powder into blocks, which can be reused and moved back to the inside of the drying bin 1 through the conveying frame 503 for drying again.
[0025] The dust reduction component 6 includes a spray frame 601, which is fixedly connected to the side wall of the exhaust frame 403. The side wall of the exhaust frame 403 close to the spray frame 601 is fixedly connected with multiple spray pipes 602. The inner wall of the exhaust frame 403 is slidably connected with a filter plate 603. The spray pipe 602 can spray a small amount of clean water on the coal powder entering the exhaust frame 403, and then perform dust reduction treatment on the coal powder to prevent the coal powder from being discharged to the outside with the air. The filter plate 603 can filter the coal powder to further prevent the coal powder from being discharged to the outside, so as to protect the environment near the device.
[0026] The sliding door assembly 2 includes a plurality of limit rods 201, which penetrate and are slidably connected to the side wall of the drying bin 1. One end of the plurality of limit rods 201 is commonly fixedly connected to a sliding door body 202. The limit rods 201 can limit the moving trajectory of the sliding door body 202, thereby preventing the sliding door body 202 from shifting in position during movement. The side wall of the sliding door body 202 is fixedly connected to a supporting plate 203, which slides against the inner wall of the drying bin 1. The top of the supporting plate 203 can carry the coal blocks that need to be dried, and when the sliding door body 202 is opened, the coal blocks can follow the sliding door body 202 to move out of the interior of the supporting plate 203, thereby facilitating the taking and placing of the coal blocks.
[0027] An observation window 204 is provided on the side wall of the sliding door body 202, so that the staff can observe the drying condition of the coal inside. A pulling plate 206 is fixedly connected to the side wall of the sliding door body 202, so that the entire sliding door body 202 can be moved easily. The sliding door body 202 is fixed by a fixing assembly 205 and the side wall of the drying bin 1. The fixing assembly 205 is a structure that can be quickly disassembled and assembled, so that the sliding door body 202 and the drying bin 1 can be quickly fixed and separated.
[0028] A first electric push rod 505 is fixedly installed on the inner wall of the extrusion box 504, and the movable end of the first electric push rod 505 is fixedly connected to the side wall of the extrusion block 506, so that the extrusion block 506 can be controlled to move, which facilitates the control of the position of the extrusion block 506. A plurality of ventilation holes 510 are provided on the side wall of the conveying frame 503, so that the conveying frame 503 can reduce the obstruction to the air circulation inside the drying chamber 1.
[0029] A sealing box 507 is fixedly connected to the top of the pressing frame 501, and a baffle 509 is sealed and slidably connected to the inner wall of the pressing frame 501. A second electric push rod 508 is fixedly installed on the inner wall of the sealing box 507, and the movable end of the second electric push rod 508 is fixedly connected to the side wall of the baffle 509. The baffle 509 can block the coal powder and air to prevent the air from the exhaust frame 403 from entering the drying bin 1 again, and can block the coal powder. After a certain period of collection, the coal powder is extruded into shape by the joint action of the extrusion block 506, the pressing frame 501 and the baffle 509, and then the baffle 509 is moved by the second electric push rod 508, and the extrusion block 506 is pushed by the first electric push rod 505. The extrusion block 506 pushes the extruded coal powder, so that the coal powder is moved back to the drying bin 1 through the conveying frame 503 for drying.
[0030] In order to solve the problem that the coal powder is discharged to the outside with the air inside the drying bin 1, generating dust, thereby causing the surrounding environment to be polluted and damaged, as Figure 1 - Fig.11 As shown: The side wall of the spray frame 601 is fixedly connected to a water tank 604, and the side wall of the water tank 604 is fixedly connected to a water pipe 605. The end of the water pipe 605 away from the water tank 604 is fixedly connected to the side wall of the spray frame 601. A large amount of clean water is stored in the water tank 604, so that water can be supplied to the inside of the spray frame 601 in time, and the water pipe 605 can transport the clean water in the water tank 604 to the inside of the spray frame 601. The top of the water tank 604 is fixedly connected to a water inlet pipe 606, and water can be added to the inside of the water tank 604 through the water inlet pipe 606. A balancing hole is opened on the side wall of the water tank 604, so that when the clean water in the water tank 604 is transported to the inside of the spray frame 601, the air pressure balance inside the water tank 604 can be maintained.
[0031] The inner wall of the spray frame 601 is sealed and slidably connected with a piston plate 610. When the piston plate 610 moves inside the spray frame 601, when the piston plate 610 moves downward, the liquid inside the spray frame 601 can be sprayed out through the spray pipe 602. The top of the piston plate 610 and the top of the filter plate 603 are fixedly connected with a connecting plate 609. The side wall of the connecting plate 609 is fixedly connected with a resist plate. The side wall of the spray frame 601 is rotatably connected with a rotating rod 607. The side wall of the rotating rod 607 is rotatably connected with a cam 608. The resist plate and the side wall of the cam 608 slide against each other, and then when the cam 608 rotates, it can drive the connecting plate 609 to move, and the connecting plate 609 can drive the piston plate 610 and the filter plate 603 to move. A motor 611 is fixedly installed on the side wall of the spray frame 601, and the output end of the motor 611 is fixedly connected to one end of the rotating rod 607, so that the motor 611 can control the rotating rod 607 to rotate, so as to control the cam 608 to rotate.
[0032] The exhaust frame 403 has symmetrically formed long grooves 612 on its side walls, with sliders 613 slidably connected to the inner walls of the long grooves 612, with the side walls of the sliders 613 fixedly connected to the side walls of the filter plate 603, and a first spring 614 fixedly connected to the inner walls of the long grooves 612, with one end of the first spring 614 fixedly connected to the adjacent side walls of the sliders 613, so that the sliders 613 can restrict the filter plate 603 so that the filter plate 603 can only move in the vertical direction, and the first springs 614 can buffer the movement of the filter plate 603, so as to prevent the sliders 613 from frequently colliding with the inside of the long grooves 612 and causing structural damage.
[0033] The side wall of the spray frame 601 is symmetrically fixedly connected to the limit box 615, and the inner wall of the limit box 615 is slidably connected to the moving block 616, and the side wall of the moving block 616 is fixedly connected to the long rod 617, and the side wall of the long rod 617 is fixedly connected to the side wall of the connecting plate 609, and the inner wall of the limit box 615 is fixedly connected to the second spring 618, and one end of the second spring 618 is fixedly connected to the adjacent side wall of the moving block 616, so that the long rod 617 limits the moving trajectory of the connecting plate 609, so that the connecting plate 609 can only move in the vertical direction. When the cam 608 drives the plate to move, the connecting plate 609 also moves, and the bottom plate slides against the side wall of the cam 608, which drives the plate to move up and down. At this time, the connecting plate 609 will also move back and forth, and then the connecting plate 609 drives the piston plate 610 and the filter plate 603 to move back and forth, and the coal powder adhered to the mesh inside and the side wall of the filter plate 603 can be shaken off, and the piston plate 610 will also spray the clean water inside the spray frame 601 to the coal powder, thereby reducing the dust on the coal powder and preventing the coal powder from being dispersed to the outside. It will also increase the weight of the coal powder so that the coal powder can fall into the pressing frame 501, and the second spring 618 can buffer the movement process of the connecting plate 609, and drive the piston plate 610 to move quickly to the initial position, so that the plate can move with the cam 608 again, thereby driving the piston plate 610 to move back and forth.
[0034] A first one-way valve 619 is fixedly installed on the inner wall of the spray pipe 602, and a second one-way valve 620 is fixedly installed on the inner wall of the water pipe 605. The air flow direction inside the first one-way valve 619 is directed from the spray frame 601 to the exhaust frame 403, while the air flow direction inside the second one-way valve 620 is directed from the water tank 604 to the spray frame 601. When the piston plate 610 moves upward, the water inside the water tank 604 is pumped into the spray frame 601 through the water pipe 605, and when the piston plate 610 moves downward, the clean water inside the spray frame 601 is sprayed into the exhaust frame 403 through the spray pipe 602, thereby spraying the coal powder to reduce dust from the coal powder. The clean water content sprayed out by the spray pipe 602 each time is not much, and is only for dust reduction of the coal powder.
[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A constant temperature monitoring coal drying device for a coal-fired power plant, comprising a drying chamber (1), characterized in that: The side wall of the drying bin (1) is provided with a sliding door assembly (2), a hot air blower (3) is fixedly installed through the side wall of the drying bin (1), an exhaust assembly (4) is fixedly connected to the side wall of the drying bin (1), a material pressing assembly (5) is fixedly installed through the side wall of the drying bin (1), a dust suppression assembly (6) is fixedly installed on the top of the material pressing assembly (5), a temperature monitor (7) is fixedly installed through the side wall of the drying bin (1), and a control panel (8) is fixedly installed on the side wall of the drying bin (1); The exhaust assembly (4) comprises a long box (401), the long box (401) is fixedly installed on the side wall of the drying chamber (1), the side wall of the long box (401) is fixedly connected to a blocking frame (402), and the side wall of the blocking frame (402) is fixedly connected to an exhaust frame (403); The pressing assembly (5) comprises a pressing frame (501), the pressing frame (501) is fixedly connected to the bottom of the exhaust frame (403), the side wall of the pressing frame (501) is fixedly connected to the conveying frame (503), the side wall of the pressing frame (501) is fixedly connected to the extrusion box (504), and the inner wall of the extrusion box (504) and the inner wall of the pressing frame (501) are slidably connected to the extrusion block (506); The dust reduction component (6) comprises a spray frame (601), the spray frame (601) being fixedly connected to a side wall of an exhaust frame (403), a plurality of spray pipes (602) being fixedly connected to the side wall of the exhaust frame (403) close to the spray frame (601), and a filter plate (603) being slidably connected to the inner wall of the exhaust frame (403).
2. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 1, characterized in that: The sliding door assembly (2) comprises a plurality of limit rods (201), the limit rods (201) passing through and slidably connected to the side wall of the drying chamber (1), one end of the plurality of limit rods (201) being fixedly connected to a sliding door body (202), the side wall of the sliding door body (202) being fixedly connected to a bearing plate (203), and the bearing plate (203) and the inner wall of the drying chamber (1) slidingly abut against each other.
3. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 3, characterized in that: The side wall of the sliding door body (202) is provided with an observation window (204), the side wall of the sliding door body (202) is fixedly connected with a pull plate (206), and the sliding door body (202) is fixed to the side wall of the drying chamber (1) via a fixing assembly (205).
4. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 1, characterized in that: A first electric push rod (505) is fixedly mounted on the inner wall of the extrusion box (504); a movable end of the first electric push rod (505) is fixedly connected to a side wall of the extrusion block (506); and a plurality of ventilation holes (510) are provided on the side wall of the conveying frame (503).
5. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 4, characterized in that: The top of the pressing frame (501) is fixedly connected to a sealing box (507), the inner wall of the pressing frame (501) is penetrated by a baffle (509) in a sealing sliding connection, the inner wall of the sealing box (507) is fixedly mounted with a second electric push rod (508), and the movable end of the second electric push rod (508) is fixedly connected to the side wall of the baffle (509).
6. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 1, characterized in that: The side wall of the spray frame (601) is fixedly connected to a water storage tank (604), the side wall of the water storage tank (604) is fixedly connected to a water delivery pipe (605), one end of the water delivery pipe (605) away from the water storage tank (604) is fixedly connected to the side wall of the spray frame (601), the top of the water storage tank (604) is fixedly connected to a water inlet pipe (606), and a balancing hole is provided on the side wall of the water storage tank (604).
7. A coal-fired power plant constant temperature monitoring coal drying device according to claim 6, characterized in that: The inner wall of the spray frame (601) is sealingly and slidably connected to a piston plate (610); the top of the piston plate (610) and the top of the filter plate (603) are fixedly connected to a connecting plate (609); the side wall of the connecting plate (609) is fixedly connected to a resisting plate; a rotating rod (607) is rotatably connected to the side wall of the spray frame (601); a cam (608) is rotatably connected to the side wall of the rotating rod (607); the resisting plate and the side wall of the cam (608) are slidably opposed to each other; a motor (611) is fixedly mounted on the side wall of the spray frame (601); and the output end of the motor (611) is fixedly connected to one end of the rotating rod (607).
8. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 7, characterized in that: The exhaust frame (403) has symmetrically formed long grooves (612) on its side walls, a slider (613) is slidably connected to the inner walls of the long grooves (612), the side walls of the slider (613) are fixedly connected to the side walls of the filter plate (603), a first spring (614) is fixedly connected to the inner walls of the long grooves (612), and one end of the first spring (614) is fixedly connected to the adjacent side wall of the slider (613).
9. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 8, characterized in that: The side walls of the spray frame (601) are symmetrically fixedly connected to the limit box (615); the inner wall of the limit box (615) is slidably connected to a moving block (616); the side wall of the moving block (616) is fixedly connected to a long rod (617); the side wall of the long rod (617) is fixedly connected to the side wall of the connecting plate (609); the inner wall of the limit box (615) is fixedly connected to a second spring (618); one end of the second spring (618) is fixedly connected to the adjacent side wall of the moving block (616).
10. A constant temperature monitoring coal drying device for a coal-fired power plant according to claim 9, characterized in that: A first one-way valve (619) is fixedly installed on the inner wall of the spray pipe (602), and a second one-way valve (620) is fixedly installed on the inner wall of the water delivery pipe (605).