A device for on-line monitoring of a chain and flight conveyor

Abstract

The utility model discloses a kind of chain and grate machine operation online monitoring devices, belong to chain and grate machine equipment technical field, including synchronously slidable dust cleaning mechanism and heat sink, fixed frame and connecting plate are equipped on the slider of dust cleaning mechanism, fixed frame installs brush roll and ash storage shell, connecting plate connects heat sink, centrifugal fan, refrigeration piece, heat-absorbing piece are equipped in heat sink, heat-absorbing piece is connected refrigeration piece through conduction pipe, centrifugal fan is used to blow and send air cooled through refrigeration piece, exhaust fan is used to heat dissipation for refrigeration piece.The utility model is through the linkage of dust cleaning mechanism and heat sink, solved the prior art cooling and dust cleaning function separation, cannot online local problem point integrated processing problem, realized dust cleaning and cooling efficient combination, carries out online mobile type targeted maintenance, through active air cooling and contact heat-absorbing composite cooling system, solved single heat dissipation mode slow cooling, the problem of insufficient efficiency, significantly improved temperature control reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of chain grate machine equipment, and in particular to an online monitoring device for the operation of a chain grate machine. Background Technology

[0002] Chain grate machines are key thermal equipment for material drying, preheating, and roasting. During operation, the grate plates of the chain grate machine are subjected to high temperatures for a long time. Uneven material distribution or fluctuations in combustion state can cause local overheating of the grate plates. The continuous action of excessively high temperatures can cause thermal deformation and material damage to the grate plates, and in severe cases, it can lead to machine shutdown accidents, directly affecting the stability of production.

[0003] To address the issue of localized high temperatures, existing cooling methods mostly involve large-area air supply or water spraying. These methods cannot precisely target specific high-temperature points, resulting in low cooling efficiency and high energy consumption. Furthermore, drastic temperature changes may cause thermal shock damage to the grate material. In addition, when the chain grate machine is working, mineral dust and fuel ash will continuously accumulate under the grate and in the gaps, forming a solid layer of ash.

[0004] The presence of the ash layer creates a poor heat insulation effect, hindering the heat dissipation of the grate to the surrounding environment, thereby further aggravating the aforementioned local high temperature problem and forming a vicious cycle that is difficult to control. Existing cleaning methods either require production to be stopped for manual handling or use online ash cleaning equipment with single functions. There is a lack of an online maintenance device that can integrate precise cooling and effective ash cleaning functions and can be moved to any problem point while the chain grate machine is running.

[0005] Therefore, this utility model proposes an online monitoring device for the operation of a chain grate machine to address the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing technology, the cooling and dust removal measures adopted for the local overheating and dust accumulation of chain grate machines are independent and have limited functions. Furthermore, there is a lack of an integrated device that can move online and coordinately handle specific fault points. The present invention aims to provide an online monitoring device for chain grate machine operation with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an online monitoring device for the operation of a chain grate machine, including a heat dissipation box, a dust removal mechanism, a centrifugal fan and a cooling plate installed in the heat dissipation box. The dust removal mechanism includes a base plate arranged along the length of the chain grate machine, a slide rail on the base plate, and a slider, a connecting plate, a fixing frame, a brush roller, a heat absorption plate, a conduction pipe, a heat exhaust fan, a monitor, a transmission column and a dust storage shell that are slidably fitted to the slide rail.

[0008] The dust removal mechanism and the heat sink are linked by a movable mechanical structure.

[0009] Furthermore, a fixed frame and a connecting plate are fixedly connected to the slider of the dust removal mechanism. The connecting plate is fixedly connected to the side wall of the heat sink to achieve synchronous sliding of the dust removal mechanism and the heat sink. A brush roller driven by a transmission column and a dust collection shell for collecting dust are installed on the fixed frame. A monitor is fixed on the outer wall of the heat sink. An air outlet for blowing cooled air toward the grate is provided at the bottom of the heat sink. A centrifugal fan is located between the air outlet and the cooling plate. A heat absorption plate is also fixed inside the heat sink. The heat absorption plate is connected to the cooling plate through a conduction tube. A heat exhaust fan is provided at the hot end of the cooling plate.

[0010] Preferably, a mounting plate is fixed in the middle of the heat dissipation box, the mounting plate is connected to a fixing plate, and the heat absorption fins are fixed to the fixing plate.

[0011] Preferably, the heat sink is provided with an air inlet that communicates with the outside, and the bottom of the heat sink is provided with a dustproof net that covers the air inlet.

[0012] Preferably, the top of the heat sink is provided with an openable top cover, and a sealing ring is provided at the joint between the top cover and the heat sink body.

[0013] Preferably, the opening of the ash storage shell faces the brush roller, and the ash storage shell is located below the rotation path of the brush roller.

[0014] Preferably, the heat dissipation fan is located on the outer wall of the heat sink and directly opposite the position of the cooling plate.

[0015] Preferably, one end of the drive column extends out of the fixing frame and is provided with an interface for connecting to an external power source.

[0016] Preferably, the axis of the centrifugal fan is perpendicular to the bottom of the heat sink.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting up a dust removal mechanism and a heat dissipation box that can move along the slide rail, and using a connecting plate to link the two together, enables the mechanical cleaning of the brush roller and the composite cooling system including centrifugal fan, cooling plate and heat absorption plate to work together. This solves the problem of the separation of cooling and dust removal functions in the prior art and the inability to carry out integrated and precise treatment of local problem points online. It realizes the efficient combination of dust removal and cooling, and online, mobile targeted maintenance of fault points.

[0019] 2. This utility model integrates a centrifugal fan, a cooling plate, and a heat absorption plate inside the heat dissipation box, and works in conjunction with a heat exhaust fan to form a composite cooling system that combines active air cooling and contact heat absorption. This solves the problem that the single heat dissipation method in the prior art is slow and ineffective in cooling local high-temperature points of the chain grate machine. It achieves rapid forced cooling through multiple heat exchange paths, significantly improving the temperature control efficiency and reliability of local overheated areas. Attached Figure Description

[0020] Figure 1 This is a front perspective view of an online monitoring device for chain grate machine operation proposed in this utility model;

[0021] Figure 2 This is a partial structural breakdown diagram of the heat dissipation fan of an online monitoring device for chain grate machine operation proposed in this utility model;

[0022] Figure 3 This is a partial structural disassembly diagram of the fixing plate of the online monitoring device for chain grate machine operation proposed in this utility model;

[0023] Figure 4 This is a partial structural diagram of the base plate of an online monitoring device for chain grate machine operation proposed in this utility model.

[0024] Legend:

[0025] 1. Heat dissipation box; 2. Dust removal mechanism; 201. Base plate; 202. Slide rail; 203. Slider; 204. Fixing frame; 205. Transmission column; 206. Connecting plate; 207. Brush roller; 208. Dust storage shell; 3. Dustproof net; 4. Mounting plate; 5. Fixing plate; 6. Heat absorption plate; 7. Conducting pipe; 8. Cooling plate; 9. Exhaust fan; 10. Centrifugal fan; 11. Sealing ring; 12. Monitor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example:

[0028] Please refer to Figures 1 to 4 This utility model provides an online monitoring device for the operation of a chain grate machine, including a dust removal mechanism 2 and a heat dissipation box 1. The dust removal mechanism 2 and the heat dissipation box 1 are linked and can move online along the length direction of the chain grate machine. The dust removal mechanism 2 includes a base plate 201 arranged along the length direction of the chain grate machine. A slide rail 202 is fixedly connected to the base plate 201. A slider 203 is slidably connected to the slide rail 202. A fixing frame 204 and a connecting plate 206 are fixedly connected to the slider 203. The connecting plate 206 is fixedly connected to the side wall of the heat dissipation box 1, thereby driving the heat dissipation box 1 and the dust removal mechanism 2 to slide synchronously.

[0029] like Figure 3 and Figure 4 As shown, a transmission column 205 is rotatably connected to the fixed frame 204. One end of the transmission column 205 extends out of the fixed frame 204 and has an interface for connecting to an external power source. The other end of the transmission column 205 drives the brush roller 207 to rotate. A dust collection shell 208 is also fixedly installed on the fixed frame 204. The opening of the dust collection shell 208 faces the brush roller 207 and is located below the rotation path of the brush roller 207 to collect the dust swept down by the brush roller 207. The heat dissipation box 1 serves as the main body for heat dissipation and monitoring functions. A monitor 12 is fixedly installed on the outer wall to monitor the surface temperature of the grate.

[0030] like Figure 1 and Figure 2 As shown, the heat sink 1 integrates a complete heat dissipation system. A centrifugal fan 10 is located at the top of the heat sink 1, and an air outlet at the bottom to blow cooled air towards the grate. The axis of the centrifugal fan 10 is perpendicular to the bottom of the heat sink 1. The heat sink 1 has an air inlet communicating with the outside, and a dust filter 3 is located at the bottom of the heat sink 1, covering the air inlet to filter the incoming air. A cooling fin 8 is located inside the heat sink 1, between the centrifugal fan 10 and the dust filter 3. The centrifugal fan 10 blows the air cooled by the cooling fin 8 through the air outlet. The heat is blown towards the grate. The interior of the heat sink 1 also includes a heat absorption structure. A mounting plate 4 is fixed in the middle of the heat sink 1. A fixing plate 5 is connected to the mounting plate 4. A heat absorption plate 6 is fixedly installed on the fixing plate 5. The heat absorption plate 6 is connected to the cooling plate 8 through the conduction pipe 7. A heat exhaust fan 9 is provided at the position of the hot end of the cooling plate 8 corresponding to the position of the outer wall of the heat sink 1. The heat exhaust fan 9 is directly facing the position of the cooling plate 8 and is used to exhaust the heat generated by the cooling plate 8. The top of the heat sink 1 is also provided with an openable top cover. A sealing ring 11 is provided at the joint between the top cover and the heat sink 1 body to ensure the airtightness of the inside of the heat sink 1.

[0031] Please refer to Figure 1 , Figure 3 and Figure 4The movement and load-bearing functions of the dust removal mechanism 2 are realized by the slide rail 202 installed on the base plate 201 and the slider 203 slidably set on the slide rail 202. The slider 203 serves as the moving platform of the dust removal mechanism 2, realizing the dust removal function and driving the heat dissipation box 1 to move. A fixed frame 204 is fixedly connected to the slider 203 by welding or bolting. The fixed frame 204 is an L-shaped plate structure that provides an installation reference for the brush roller 207 and the ash storage shell 208. A transmission column 205 is rotatably connected to the fixed frame 204. One end of the transmission column 205 passes through the fixed frame 204 and is provided with an interface for connecting to an external power source. The other end of the transmission column 205 is fixedly connected to the axis of the brush roller 207, thereby driving the brush roller 207 to rotate around its own axis. The bristles of the brush roller 207 are arranged in a spiral shape so that the dust is collected in a specific direction when rotating.

[0032] A dust collection shell 208 is also fixedly installed on the fixed frame 204. The dust collection shell 208 is a semi-open shell with its opening facing the brush roller 207. The position of the dust collection shell 208 is set below the rotation path of the brush roller 207, which ensures that the dust swept down from the grate by the brush roller 207 can be effectively collected into the dust collection shell 208, so as to realize the synchronous movement of the dust cleaning mechanism 2 and the heat dissipation box 1.

[0033] A connecting plate 206 is also fixedly connected to the slider 203. The connecting plate 206 is a metal plate with a specific bending angle. The other end of the connecting plate 206 is fixedly connected to the side wall of the heat dissipation box 1 by bolts. This structure, which connects the fixed frame 204 and the connecting plate 206 simultaneously through the slider 203, forms a stable mechanical linkage, thereby realizing precise positioning and maintenance of different positions of the chain grate machine.

[0034] As a preferred embodiment, in order to facilitate the installation and maintenance of the internal components of the heat sink 1, a mounting plate 4 is horizontally fixed in the middle of the heat sink 1. The mounting plate 4 is connected to a fixing plate 5 by bolts, and the heat absorption sheet 6 is fixed to the fixing plate 5 by welding or snap-fit, making it easier to fix and replace the heat absorption sheet 6.

[0035] As another preferred embodiment, in order to ensure the cleanliness of the air entering the heat sink 1 and prevent dust from clogging the cooling fins 8 or affecting the operation of the centrifugal fan 10, an air inlet communicating with the outside is provided on the lower side wall of the heat sink 1, and a removable dustproof net 3 is provided at the bottom of the heat sink 1. The dustproof net 3 covers the air inlet and can be installed on the heat sink 1 by means of a sliding groove or a buckle, so as to facilitate regular removal for cleaning or replacement.

[0036] In a more preferred embodiment, in order to enhance the sealing performance of the heat sink 1 and prevent the leakage of internal cold air and the intrusion of external hot air and impurities, the top of the heat sink 1 is provided with an openable top cover. The top cover is rotatably connected to the heat sink 1 body by a hinge. A sealing ring 11 is provided at the joint between the top cover and the heat sink 1 body. When the top cover is closed, the sealing ring 11 is compressed, thereby forming a reliable seal.

[0037] To further optimize the dust removal effect, the dust collection shell 208 is designed in the shape of a funnel, with the opening of the dust collection shell 208 facing the brush roller 207, and the edge of the opening being as close as possible to the rotating outer contour of the brush bristles of the brush roller 207. The bottom of the dust collection shell 208 is provided with an openable and closable dust discharge door for convenient centralized cleaning of the collected dust.

[0038] As an optimization solution for heat dissipation efficiency, the heat dissipation fan 9 is fixedly installed on the outer wall of the heat sink 1 by a bracket, and the position of the heat dissipation fan 9 is directly opposite the projection position of the cooling chip 8 inside the heat sink 1, so that the airflow generated by the heat dissipation fan 9 can concentrate and efficiently remove the heat transferred from the hot end of the cooling chip 8 through the conduction pipe 7 and the box wall.

[0039] To make the driving method of the drive column 205 more flexible, one end of the drive column 205 extends out of the fixed frame 204 and is provided with an interface for connecting to an external power source, which can be easily connected to a handheld power tool or a fixedly installed motor to drive the brush roller 207.

[0040] To improve the efficiency of the centrifugal fan 10 in blowing cool air, the centrifugal fan 10 is installed with its axis perpendicular to the bottom of the heat sink 1, ensuring that the airflow generated by the centrifugal fan 10 can vertically impact the surface of the grate plate to achieve the most efficient heat exchange.

[0041] Working principle:

[0042] When online maintenance of the chain grate machine is required, the base plate 201 of the device is first installed on the two side tracks of the chain grate machine. At this time, the monitor 12 starts to work, monitoring the temperature data of the grate below in real time. When the temperature of the grate in a certain area exceeds the preset safety threshold, the centrifugal fan 10 at the top of the heat dissipation box 1 starts to rotate at high speed, drawing in outside air through the air inlet equipped with dust filter 3. The air is rapidly cooled as it flows through the cooling plate 8. Then, driven by the centrifugal fan 10, the low-temperature air is blown vertically onto the high-temperature grate through the air outlet at the bottom of the heat dissipation box 1. On the surface, active convection cooling is performed. At the same time, the heat-absorbing fins 6, which are in close or light contact with the grate plate, begin to absorb the heat radiated and conducted by the grate plate. While the cooling fins 8 cool the air at the cooling end, the generated cold energy is transferred to the heat-absorbing fins 6 through the conduction pipes 7, keeping the heat-absorbing fins 6 at a low temperature, thereby enhancing the heat absorption effect. The waste heat generated at the hot end of the cooling fins 8 during operation is forcibly discharged by the exhaust fan 9 set on the outer wall of the heat dissipation box 1. Through this combination of active air blowing and passive heat absorption, the local temperature of the grate plate is efficiently controlled within a safe range.

[0043] When it is necessary to clean the accumulated dust under the grate, the operator can push the entire device to make the slider 203 slide along the slide rail 202 until the target area. Since the heat dissipation box 1 is fixedly connected to the slider 203 through the connecting plate 206, the heat dissipation box 1 will move synchronously with the dust removal mechanism 2. After reaching the designated position, the transmission column 205 is driven to rotate by the external power source, which in turn drives the brush roller 207 to brush and clean the accumulated dust under the grate and in the gap. The cleaned dust falls into the ash storage shell 208 below. At the same time as mechanical dust removal, the airflow blown by the centrifugal fan 10 can also play an auxiliary role in blowing away fine dust from the surface of the grate, avoiding the accumulation of dust from affecting the heat dissipation efficiency. Thus, through the synergistic effect of cooling and dust removal, the stable operation of the chain grate machine is ensured.

Claims

1. An online monitoring device for the operation of a chain grate machine, comprising a heat dissipation box (1), a dust removal mechanism (2), a centrifugal fan (10) and a cooling plate (8) disposed in the heat dissipation box (1), wherein the dust removal mechanism (2) comprises a base plate (201) disposed along the length direction of the chain grate machine, a slide rail (202) disposed on the base plate (201), and a slider (203) slidably engaged with the slide rail (202); Its features are, The slider (203) is fixedly connected to a fixing frame (204) and a connecting plate (206). The connecting plate (206) is fixedly connected to the side wall of the heat sink (1) so as to drive the heat sink (1) and the slider (203) to slide synchronously. The outer wall of the heat sink (1) is fixed with a monitor (12). The bottom of the heat sink (1) is provided with an air outlet for blowing cooled air toward the grate. The centrifugal fan (10) is located between the air outlet and the cooling plate (8). The heat sink (1) is fixed with a heat-absorbing plate (6). The heat-absorbing plate (6) is connected to the cooling plate (8) through a conduction pipe (7). The hot end of the cooling plate (8) is provided with a heat exhaust fan (9). The fixed frame (204) is equipped with a brush roller (207) driven by a transmission column (205) and a ash storage shell (208).

2. The online monitoring device for chain grate machine operation according to claim 1, characterized in that, A mounting plate (4) is fixed in the middle of the heat dissipation box (1), the mounting plate (4) is connected to a fixing plate (5), and the heat absorption sheet (6) is fixed on the fixing plate (5).

3. The online monitoring device for chain grate machine operation according to claim 1, characterized in that, The heat dissipation box (1) is provided with an air inlet that communicates with the outside, and the bottom of the heat dissipation box (1) is provided with a dustproof net (3), which covers the air inlet.

4. The online monitoring device for chain grate machine operation according to claim 1, characterized in that, The top of the heat sink (1) is provided with an openable top cover, and a sealing ring (11) is provided at the joint between the top cover and the heat sink (1) body.

5. The online monitoring device for chain grate machine operation according to claim 1, characterized in that, The opening of the ash storage shell (208) faces the brush roller (207), and the ash storage shell (208) is located below the rotation path of the brush roller (207).

6. The online monitoring device for chain grate machine operation according to claim 1, characterized in that, The heat dissipation fan (9) is located on the outer wall of the heat dissipation box (1) and is positioned directly opposite the cooling chip (8).

7. The online monitoring device for chain grate machine operation according to claim 1, characterized in that, One end of the transmission column (205) extends out of the fixing frame (204) and is provided with an interface for connecting to an external power source.

8. The online monitoring device for chain grate machine operation according to claim 1, characterized in that, The axis of the centrifugal fan (10) is perpendicular to the bottom of the heat sink (1).

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